code.delx.au - gnu-emacs/blob - src/nsterm.m

   1 /* NeXT/Open/GNUstep / MacOSX communication module.      -*- coding: utf-8 -*-
   2
   3 Copyright (C) 1989, 1993-1994, 2005-2006, 2008-2015 Free Software
   4 Foundation, Inc.
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs is free software: you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation, either version 3 of the License, or
  11 (at your option) any later version.
  12
  13 GNU Emacs is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 /*
  22 Originally by Carl Edman
  23 Updated by Christian Limpach (chris@nice.ch)
  24 OpenStep/Rhapsody port by Scott Bender (sbender@harmony-ds.com)
  25 MacOSX/Aqua port by Christophe de Dinechin (descubes@earthlink.net)
  26 GNUstep port and post-20 update by Adrian Robert (arobert@cogsci.ucsd.edu)
  27 */
  28
  29 /* This should be the first include, as it may set up #defines affecting
  30    interpretation of even the system includes. */
  31 #include <config.h>
  32
  33 #include <fcntl.h>
  34 #include <math.h>
  35 #include <pthread.h>
  36 #include <sys/types.h>
  37 #include <time.h>
  38 #include <signal.h>
  39 #include <unistd.h>
  40
  41 #include <c-ctype.h>
  42 #include <c-strcase.h>
  43 #include <ftoastr.h>
  44
  45 #include "lisp.h"
  46 #include "blockinput.h"
  47 #include "sysselect.h"
  48 #include "nsterm.h"
  49 #include "systime.h"
  50 #include "character.h"
  51 #include "fontset.h"
  52 #include "composite.h"
  53 #include "ccl.h"
  54
  55 #include "termhooks.h"
  56 #include "termchar.h"
  57 #include "menu.h"
  58 #include "window.h"
  59 #include "keyboard.h"
  60 #include "buffer.h"
  61 #include "font.h"
  62
  63 #ifdef NS_IMPL_GNUSTEP
  64 #include "process.h"
  65 #endif
  66
  67 #ifdef NS_IMPL_COCOA
  68 #include "macfont.h"
  69 #endif
  70
  71
  72 extern NSString *NSMenuDidBeginTrackingNotification;
  73
  74
  75 #if NSTRACE_ENABLED
  76 int nstrace_num = 0;
  77 int nstrace_depth = 0;
  78
  79 /* Called when nstrace_enabled goes out of scope. */
  80 void nstrace_leave(int * pointer_to_nstrace_enabled)
  81 {
  82   if (*pointer_to_nstrace_enabled)
  83     {
  84       --nstrace_depth;
  85     }
  86 }
  87
  88
  89 void ns_print_fullscreen_type_name (char const * s, int fs_type)
  90 {
  91   // This is a support function for the NSTRACE system, don't add a
  92   // NSTRACE () here.  However, a local `nstrace_enabled' variable is
  93   // needed by the NSTRACE_MSG macros.
  94   int nstrace_enabled = 1;
  95
  96   switch (fs_type)
  97     {
  98     case FULLSCREEN_NONE:
  99       NSTRACE_MSG ("%s: FULLSCREEN_NONE", s);
 100       break;
 101
 102     case FULLSCREEN_WIDTH:
 103       NSTRACE_MSG ("%s: FULLSCREEN_WIDTH", s);
 104       break;
 105
 106     case FULLSCREEN_HEIGHT:
 107       NSTRACE_MSG ("%s: FULLSCREEN_HEIGHT", s);
 108       break;
 109
 110     case FULLSCREEN_BOTH:
 111       NSTRACE_MSG ("%s: FULLSCREEN_BOTH", s);
 112       break;
 113
 114     case FULLSCREEN_MAXIMIZED:
 115       NSTRACE_MSG ("%s: FULLSCREEN_MAXIMIZED", s);
 116       break;
 117
 118     default:
 119       NSTRACE_MSG ("%s: %d", s, fs_type);
 120       break;
 121     }
 122 }
 123 #endif
 124
 125
 126 /* ==========================================================================
 127
 128    NSColor, EmacsColor category.
 129
 130    ========================================================================== */
 131 @implementation NSColor (EmacsColor)
 132 + (NSColor *)colorForEmacsRed:(CGFloat)red green:(CGFloat)green
 133                          blue:(CGFloat)blue alpha:(CGFloat)alpha
 134 {
 135 #ifdef NS_IMPL_COCOA
 136 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
 137   if (ns_use_srgb_colorspace)
 138       return [NSColor colorWithSRGBRed: red
 139                                  green: green
 140                                   blue: blue
 141                                  alpha: alpha];
 142 #endif
 143 #endif
 144   return [NSColor colorWithCalibratedRed: red
 145                                    green: green
 146                                     blue: blue
 147                                    alpha: alpha];
 148 }
 149
 150 - (NSColor *)colorUsingDefaultColorSpace
 151 {
 152 #ifdef NS_IMPL_COCOA
 153 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
 154   if (ns_use_srgb_colorspace)
 155     return [self colorUsingColorSpace: [NSColorSpace sRGBColorSpace]];
 156 #endif
 157 #endif
 158   return [self colorUsingColorSpaceName: NSCalibratedRGBColorSpace];
 159 }
 160
 161 @end
 162
 163 /* ==========================================================================
 164
 165     Local declarations
 166
 167    ========================================================================== */
 168
 169 /* Convert a symbol indexed with an NSxxx value to a value as defined
 170    in keyboard.c (lispy_function_key). I hope this is a correct way
 171    of doing things... */
 172 static unsigned convert_ns_to_X_keysym[] =
 173 {
 174   NSHomeFunctionKey,            0x50,
 175   NSLeftArrowFunctionKey,       0x51,
 176   NSUpArrowFunctionKey,         0x52,
 177   NSRightArrowFunctionKey,      0x53,
 178   NSDownArrowFunctionKey,       0x54,
 179   NSPageUpFunctionKey,          0x55,
 180   NSPageDownFunctionKey,        0x56,
 181   NSEndFunctionKey,             0x57,
 182   NSBeginFunctionKey,           0x58,
 183   NSSelectFunctionKey,          0x60,
 184   NSPrintFunctionKey,           0x61,
 185   NSClearLineFunctionKey,       0x0B,
 186   NSExecuteFunctionKey,         0x62,
 187   NSInsertFunctionKey,          0x63,
 188   NSUndoFunctionKey,            0x65,
 189   NSRedoFunctionKey,            0x66,
 190   NSMenuFunctionKey,            0x67,
 191   NSFindFunctionKey,            0x68,
 192   NSHelpFunctionKey,            0x6A,
 193   NSBreakFunctionKey,           0x6B,
 194
 195   NSF1FunctionKey,              0xBE,
 196   NSF2FunctionKey,              0xBF,
 197   NSF3FunctionKey,              0xC0,
 198   NSF4FunctionKey,              0xC1,
 199   NSF5FunctionKey,              0xC2,
 200   NSF6FunctionKey,              0xC3,
 201   NSF7FunctionKey,              0xC4,
 202   NSF8FunctionKey,              0xC5,
 203   NSF9FunctionKey,              0xC6,
 204   NSF10FunctionKey,             0xC7,
 205   NSF11FunctionKey,             0xC8,
 206   NSF12FunctionKey,             0xC9,
 207   NSF13FunctionKey,             0xCA,
 208   NSF14FunctionKey,             0xCB,
 209   NSF15FunctionKey,             0xCC,
 210   NSF16FunctionKey,             0xCD,
 211   NSF17FunctionKey,             0xCE,
 212   NSF18FunctionKey,             0xCF,
 213   NSF19FunctionKey,             0xD0,
 214   NSF20FunctionKey,             0xD1,
 215   NSF21FunctionKey,             0xD2,
 216   NSF22FunctionKey,             0xD3,
 217   NSF23FunctionKey,             0xD4,
 218   NSF24FunctionKey,             0xD5,
 219
 220   NSBackspaceCharacter,         0x08,  /* 8: Not on some KBs. */
 221   NSDeleteCharacter,            0xFF,  /* 127: Big 'delete' key upper right. */
 222   NSDeleteFunctionKey,          0x9F,  /* 63272: Del forw key off main array. */
 223
 224   NSTabCharacter,               0x09,
 225   0x19,                         0x09,  /* left tab->regular since pass shift */
 226   NSCarriageReturnCharacter,    0x0D,
 227   NSNewlineCharacter,           0x0D,
 228   NSEnterCharacter,             0x8D,
 229
 230   0x41|NSNumericPadKeyMask,     0xAE,  /* KP_Decimal */
 231   0x43|NSNumericPadKeyMask,     0xAA,  /* KP_Multiply */
 232   0x45|NSNumericPadKeyMask,     0xAB,  /* KP_Add */
 233   0x4B|NSNumericPadKeyMask,     0xAF,  /* KP_Divide */
 234   0x4E|NSNumericPadKeyMask,     0xAD,  /* KP_Subtract */
 235   0x51|NSNumericPadKeyMask,     0xBD,  /* KP_Equal */
 236   0x52|NSNumericPadKeyMask,     0xB0,  /* KP_0 */
 237   0x53|NSNumericPadKeyMask,     0xB1,  /* KP_1 */
 238   0x54|NSNumericPadKeyMask,     0xB2,  /* KP_2 */
 239   0x55|NSNumericPadKeyMask,     0xB3,  /* KP_3 */
 240   0x56|NSNumericPadKeyMask,     0xB4,  /* KP_4 */
 241   0x57|NSNumericPadKeyMask,     0xB5,  /* KP_5 */
 242   0x58|NSNumericPadKeyMask,     0xB6,  /* KP_6 */
 243   0x59|NSNumericPadKeyMask,     0xB7,  /* KP_7 */
 244   0x5B|NSNumericPadKeyMask,     0xB8,  /* KP_8 */
 245   0x5C|NSNumericPadKeyMask,     0xB9,  /* KP_9 */
 246
 247   0x1B,                         0x1B   /* escape */
 248 };
 249
 250 /* On OS X picks up the default NSGlobalDomain AppleAntiAliasingThreshold,
 251    the maximum font size to NOT antialias.  On GNUstep there is currently
 252    no way to control this behavior. */
 253 float ns_antialias_threshold;
 254
 255 NSArray *ns_send_types =0, *ns_return_types =0, *ns_drag_types =0;
 256 NSString *ns_app_name = @"Emacs";  /* default changed later */
 257
 258 /* Display variables */
 259 struct ns_display_info *x_display_list; /* Chain of existing displays */
 260 long context_menu_value = 0;
 261
 262 /* display update */
 263 static struct frame *ns_updating_frame;
 264 static NSView *focus_view = NULL;
 265 static int ns_window_num = 0;
 266 #ifdef NS_IMPL_GNUSTEP
 267 static NSRect uRect;            // TODO: This is dead, remove it?
 268 #endif
 269 static BOOL gsaved = NO;
 270 static BOOL ns_fake_keydown = NO;
 271 #ifdef NS_IMPL_COCOA
 272 static BOOL ns_menu_bar_is_hidden = NO;
 273 #endif
 274 /*static int debug_lock = 0; */
 275
 276 /* event loop */
 277 static BOOL send_appdefined = YES;
 278 #define NO_APPDEFINED_DATA (-8)
 279 static int last_appdefined_event_data = NO_APPDEFINED_DATA;
 280 static NSTimer *timed_entry = 0;
 281 static NSTimer *scroll_repeat_entry = nil;
 282 static fd_set select_readfds, select_writefds;
 283 enum { SELECT_HAVE_READ = 1, SELECT_HAVE_WRITE = 2, SELECT_HAVE_TMO = 4 };
 284 static int select_nfds = 0, select_valid = 0;
 285 static struct timespec select_timeout = { 0, 0 };
 286 static int selfds[2] = { -1, -1 };
 287 static pthread_mutex_t select_mutex;
 288 static int apploopnr = 0;
 289 static NSAutoreleasePool *outerpool;
 290 static struct input_event *emacs_event = NULL;
 291 static struct input_event *q_event_ptr = NULL;
 292 static int n_emacs_events_pending = 0;
 293 static NSMutableArray *ns_pending_files, *ns_pending_service_names,
 294   *ns_pending_service_args;
 295 static BOOL ns_do_open_file = NO;
 296 static BOOL ns_last_use_native_fullscreen;
 297
 298 /* Non-zero means that a HELP_EVENT has been generated since Emacs
 299    start.  */
 300
 301 static BOOL any_help_event_p = NO;
 302
 303 static struct {
 304   struct input_event *q;
 305   int nr, cap;
 306 } hold_event_q = {
 307   NULL, 0, 0
 308 };
 309
 310 static NSString *represented_filename = nil;
 311 static struct frame *represented_frame = 0;
 312
 313 #ifdef NS_IMPL_COCOA
 314 /*
 315  * State for pending menu activation:
 316  * MENU_NONE     Normal state
 317  * MENU_PENDING  A menu has been clicked on, but has been canceled so we can
 318  *               run lisp to update the menu.
 319  * MENU_OPENING  Menu is up to date, and the click event is redone so the menu
 320  *               will open.
 321  */
 322 #define MENU_NONE 0
 323 #define MENU_PENDING 1
 324 #define MENU_OPENING 2
 325 static int menu_will_open_state = MENU_NONE;
 326
 327 /* Saved position for menu click.  */
 328 static CGPoint menu_mouse_point;
 329 #endif
 330
 331 /* Convert modifiers in a NeXTstep event to emacs style modifiers.  */
 332 #define NS_FUNCTION_KEY_MASK 0x800000
 333 #define NSLeftControlKeyMask    (0x000001 | NSControlKeyMask)
 334 #define NSRightControlKeyMask   (0x002000 | NSControlKeyMask)
 335 #define NSLeftCommandKeyMask    (0x000008 | NSCommandKeyMask)
 336 #define NSRightCommandKeyMask   (0x000010 | NSCommandKeyMask)
 337 #define NSLeftAlternateKeyMask  (0x000020 | NSAlternateKeyMask)
 338 #define NSRightAlternateKeyMask (0x000040 | NSAlternateKeyMask)
 339 #define EV_MODIFIERS2(flags)                          \
 340     (((flags & NSHelpKeyMask) ?           \
 341            hyper_modifier : 0)                        \
 342      | (!EQ (ns_right_alternate_modifier, Qleft) && \
 343         ((flags & NSRightAlternateKeyMask) \
 344          == NSRightAlternateKeyMask) ? \
 345            parse_solitary_modifier (ns_right_alternate_modifier) : 0) \
 346      | ((flags & NSAlternateKeyMask) ?                 \
 347            parse_solitary_modifier (ns_alternate_modifier) : 0)   \
 348      | ((flags & NSShiftKeyMask) ?     \
 349            shift_modifier : 0)                        \
 350      | (!EQ (ns_right_control_modifier, Qleft) && \
 351         ((flags & NSRightControlKeyMask) \
 352          == NSRightControlKeyMask) ? \
 353            parse_solitary_modifier (ns_right_control_modifier) : 0) \
 354      | ((flags & NSControlKeyMask) ?      \
 355            parse_solitary_modifier (ns_control_modifier) : 0)     \
 356      | ((flags & NS_FUNCTION_KEY_MASK) ?  \
 357            parse_solitary_modifier (ns_function_modifier) : 0)    \
 358      | (!EQ (ns_right_command_modifier, Qleft) && \
 359         ((flags & NSRightCommandKeyMask) \
 360          == NSRightCommandKeyMask) ? \
 361            parse_solitary_modifier (ns_right_command_modifier) : 0) \
 362      | ((flags & NSCommandKeyMask) ?      \
 363            parse_solitary_modifier (ns_command_modifier):0))
 364 #define EV_MODIFIERS(e) EV_MODIFIERS2 ([e modifierFlags])
 365
 366 #define EV_UDMODIFIERS(e)                                      \
 367     ((([e type] == NSLeftMouseDown) ? down_modifier : 0)       \
 368      | (([e type] == NSRightMouseDown) ? down_modifier : 0)    \
 369      | (([e type] == NSOtherMouseDown) ? down_modifier : 0)    \
 370      | (([e type] == NSLeftMouseDragged) ? down_modifier : 0)  \
 371      | (([e type] == NSRightMouseDragged) ? down_modifier : 0) \
 372      | (([e type] == NSOtherMouseDragged) ? down_modifier : 0) \
 373      | (([e type] == NSLeftMouseUp)   ? up_modifier   : 0)     \
 374      | (([e type] == NSRightMouseUp)   ? up_modifier   : 0)    \
 375      | (([e type] == NSOtherMouseUp)   ? up_modifier   : 0))
 376
 377 #define EV_BUTTON(e)                                                         \
 378     ((([e type] == NSLeftMouseDown) || ([e type] == NSLeftMouseUp)) ? 0 :    \
 379       (([e type] == NSRightMouseDown) || ([e type] == NSRightMouseUp)) ? 2 : \
 380      [e buttonNumber] - 1)
 381
 382 /* Convert the time field to a timestamp in milliseconds. */
 383 #define EV_TIMESTAMP(e) ([e timestamp] * 1000)
 384
 385 /* This is a piece of code which is common to all the event handling
 386    methods.  Maybe it should even be a function.  */
 387 #define EV_TRAILER(e)                                                   \
 388   {                                                                     \
 389     XSETFRAME (emacs_event->frame_or_window, emacsframe);               \
 390     EV_TRAILER2 (e);                                                    \
 391   }
 392
 393 #define EV_TRAILER2(e)                                                  \
 394   {                                                                     \
 395       if (e) emacs_event->timestamp = EV_TIMESTAMP (e);                 \
 396       if (q_event_ptr)                                                  \
 397         {                                                               \
 398           Lisp_Object tem = Vinhibit_quit;                              \
 399           Vinhibit_quit = Qt;                                           \
 400           n_emacs_events_pending++;                                     \
 401           kbd_buffer_store_event_hold (emacs_event, q_event_ptr);       \
 402           Vinhibit_quit = tem;                                          \
 403         }                                                               \
 404       else                                                              \
 405         hold_event (emacs_event);                                       \
 406       EVENT_INIT (*emacs_event);                                        \
 407       ns_send_appdefined (-1);                                          \
 408     }
 409
 410 /* TODO: get rid of need for these forward declarations */
 411 static void ns_condemn_scroll_bars (struct frame *f);
 412 static void ns_judge_scroll_bars (struct frame *f);
 413 void x_set_frame_alpha (struct frame *f);
 414
 415
 416 /* ==========================================================================
 417
 418     Utilities
 419
 420    ========================================================================== */
 421
 422 void
 423 ns_set_represented_filename (NSString* fstr, struct frame *f)
 424 {
 425   represented_filename = [fstr retain];
 426   represented_frame = f;
 427 }
 428
 429 void
 430 ns_init_events (struct input_event* ev)
 431 {
 432   EVENT_INIT (*ev);
 433   emacs_event = ev;
 434 }
 435
 436 void
 437 ns_finish_events ()
 438 {
 439   emacs_event = NULL;
 440 }
 441
 442 static void
 443 hold_event (struct input_event *event)
 444 {
 445   if (hold_event_q.nr == hold_event_q.cap)
 446     {
 447       if (hold_event_q.cap == 0) hold_event_q.cap = 10;
 448       else hold_event_q.cap *= 2;
 449       hold_event_q.q =
 450         xrealloc (hold_event_q.q, hold_event_q.cap * sizeof *hold_event_q.q);
 451     }
 452
 453   hold_event_q.q[hold_event_q.nr++] = *event;
 454   /* Make sure ns_read_socket is called, i.e. we have input.  */
 455   raise (SIGIO);
 456   send_appdefined = YES;
 457 }
 458
 459 static Lisp_Object
 460 append2 (Lisp_Object list, Lisp_Object item)
 461 /* --------------------------------------------------------------------------
 462    Utility to append to a list
 463    -------------------------------------------------------------------------- */
 464 {
 465   return CALLN (Fnconc, list, list1 (item));
 466 }
 467
 468
 469 const char *
 470 ns_etc_directory (void)
 471 /* If running as a self-contained app bundle, return as a string the
 472    filename of the etc directory, if present; else nil.  */
 473 {
 474   NSBundle *bundle = [NSBundle mainBundle];
 475   NSString *resourceDir = [bundle resourcePath];
 476   NSString *resourcePath;
 477   NSFileManager *fileManager = [NSFileManager defaultManager];
 478   BOOL isDir;
 479
 480   resourcePath = [resourceDir stringByAppendingPathComponent: @"etc"];
 481   if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 482     {
 483       if (isDir) return [resourcePath UTF8String];
 484     }
 485   return NULL;
 486 }
 487
 488
 489 const char *
 490 ns_exec_path (void)
 491 /* If running as a self-contained app bundle, return as a path string
 492    the filenames of the libexec and bin directories, ie libexec:bin.
 493    Otherwise, return nil.
 494    Normally, Emacs does not add its own bin/ directory to the PATH.
 495    However, a self-contained NS build has a different layout, with
 496    bin/ and libexec/ subdirectories in the directory that contains
 497    Emacs.app itself.
 498    We put libexec first, because init_callproc_1 uses the first
 499    element to initialize exec-directory.  An alternative would be
 500    for init_callproc to check for invocation-directory/libexec.
 501 */
 502 {
 503   NSBundle *bundle = [NSBundle mainBundle];
 504   NSString *resourceDir = [bundle resourcePath];
 505   NSString *binDir = [bundle bundlePath];
 506   NSString *resourcePath, *resourcePaths;
 507   NSRange range;
 508   NSString *pathSeparator = [NSString stringWithFormat: @"%c", SEPCHAR];
 509   NSFileManager *fileManager = [NSFileManager defaultManager];
 510   NSArray *paths;
 511   NSEnumerator *pathEnum;
 512   BOOL isDir;
 513
 514   range = [resourceDir rangeOfString: @"Contents"];
 515   if (range.location != NSNotFound)
 516     {
 517       binDir = [binDir stringByAppendingPathComponent: @"Contents"];
 518 #ifdef NS_IMPL_COCOA
 519       binDir = [binDir stringByAppendingPathComponent: @"MacOS"];
 520 #endif
 521     }
 522
 523   paths = [binDir stringsByAppendingPaths:
 524                 [NSArray arrayWithObjects: @"libexec", @"bin", nil]];
 525   pathEnum = [paths objectEnumerator];
 526   resourcePaths = @"";
 527
 528   while ((resourcePath = [pathEnum nextObject]))
 529     {
 530       if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 531         if (isDir)
 532           {
 533             if ([resourcePaths length] > 0)
 534               resourcePaths
 535                 = [resourcePaths stringByAppendingString: pathSeparator];
 536             resourcePaths
 537               = [resourcePaths stringByAppendingString: resourcePath];
 538           }
 539     }
 540   if ([resourcePaths length] > 0) return [resourcePaths UTF8String];
 541
 542   return NULL;
 543 }
 544
 545
 546 const char *
 547 ns_load_path (void)
 548 /* If running as a self-contained app bundle, return as a path string
 549    the filenames of the site-lisp and lisp directories.
 550    Ie, site-lisp:lisp.  Otherwise, return nil.  */
 551 {
 552   NSBundle *bundle = [NSBundle mainBundle];
 553   NSString *resourceDir = [bundle resourcePath];
 554   NSString *resourcePath, *resourcePaths;
 555   NSString *pathSeparator = [NSString stringWithFormat: @"%c", SEPCHAR];
 556   NSFileManager *fileManager = [NSFileManager defaultManager];
 557   BOOL isDir;
 558   NSArray *paths = [resourceDir stringsByAppendingPaths:
 559                               [NSArray arrayWithObjects:
 560                                          @"site-lisp", @"lisp", nil]];
 561   NSEnumerator *pathEnum = [paths objectEnumerator];
 562   resourcePaths = @"";
 563
 564   /* Hack to skip site-lisp.  */
 565   if (no_site_lisp) resourcePath = [pathEnum nextObject];
 566
 567   while ((resourcePath = [pathEnum nextObject]))
 568     {
 569       if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 570         if (isDir)
 571           {
 572             if ([resourcePaths length] > 0)
 573               resourcePaths
 574                 = [resourcePaths stringByAppendingString: pathSeparator];
 575             resourcePaths
 576               = [resourcePaths stringByAppendingString: resourcePath];
 577           }
 578     }
 579   if ([resourcePaths length] > 0) return [resourcePaths UTF8String];
 580
 581   return NULL;
 582 }
 583
 584 static void
 585 ns_timeout (int usecs)
 586 /* --------------------------------------------------------------------------
 587      Blocking timer utility used by ns_ring_bell
 588    -------------------------------------------------------------------------- */
 589 {
 590   struct timespec wakeup = timespec_add (current_timespec (),
 591                                          make_timespec (0, usecs * 1000));
 592
 593   /* Keep waiting until past the time wakeup.  */
 594   while (1)
 595     {
 596       struct timespec timeout, now = current_timespec ();
 597       if (timespec_cmp (wakeup, now) <= 0)
 598         break;
 599       timeout = timespec_sub (wakeup, now);
 600
 601       /* Try to wait that long--but we might wake up sooner.  */
 602       pselect (0, NULL, NULL, NULL, &timeout, NULL);
 603     }
 604 }
 605
 606
 607 void
 608 ns_release_object (void *obj)
 609 /* --------------------------------------------------------------------------
 610     Release an object (callable from C)
 611    -------------------------------------------------------------------------- */
 612 {
 613     [(id)obj release];
 614 }
 615
 616
 617 void
 618 ns_retain_object (void *obj)
 619 /* --------------------------------------------------------------------------
 620     Retain an object (callable from C)
 621    -------------------------------------------------------------------------- */
 622 {
 623     [(id)obj retain];
 624 }
 625
 626
 627 void *
 628 ns_alloc_autorelease_pool (void)
 629 /* --------------------------------------------------------------------------
 630      Allocate a pool for temporary objects (callable from C)
 631    -------------------------------------------------------------------------- */
 632 {
 633   return [[NSAutoreleasePool alloc] init];
 634 }
 635
 636
 637 void
 638 ns_release_autorelease_pool (void *pool)
 639 /* --------------------------------------------------------------------------
 640      Free a pool and temporary objects it refers to (callable from C)
 641    -------------------------------------------------------------------------- */
 642 {
 643   ns_release_object (pool);
 644 }
 645
 646
 647 /* True, if the menu bar should be hidden.  */
 648
 649 static BOOL
 650 ns_menu_bar_should_be_hidden (void)
 651 {
 652   return !NILP (ns_auto_hide_menu_bar)
 653     && [NSApp respondsToSelector:@selector(setPresentationOptions:)];
 654 }
 655
 656
 657 static CGFloat
 658 ns_menu_bar_height (NSScreen *screen)
 659 /* The height of the menu bar, if visible. */
 660 {
 661   //  NSTRACE ("ns_menu_bar_height");
 662
 663   CGFloat res;
 664
 665   if (ns_menu_bar_should_be_hidden())
 666     {
 667       res = 0;
 668     }
 669   else
 670     {
 671       NSRect screenFrame = [screen frame];
 672       NSRect screenVisibleFrame = [screen visibleFrame];
 673
 674       CGFloat frameTop = screenFrame.origin.y + screenFrame.size.height;
 675       CGFloat visibleFrameTop = (screenVisibleFrame.origin.y
 676                                  + screenVisibleFrame.size.height);
 677
 678       res = frameTop - visibleFrameTop;
 679
 680     }
 681
 682   // NSTRACE_MSG (NSTRACE_FMT_RETURN "%.0f", res);
 683
 684   return res;
 685 }
 686
 687
 688 /* ==========================================================================
 689
 690     Focus (clipping) and screen update
 691
 692    ========================================================================== */
 693
 694 //
 695 // Window constraining
 696 // -------------------
 697 //
 698 // To ensure that the windows are not placed under the menu bar, they
 699 // are typically moved by the call-back constrainFrameRect. However,
 700 // by overriding it, it's possible to inhibit this, leaving the window
 701 // in it's original position.
 702 //
 703 // It's possible to hide the menu bar. However, technically, it's only
 704 // possible to hide it when the application is active. To ensure that
 705 // this work properly, the menu bar and window constraining are
 706 // deferred until the application becomes active.
 707 //
 708 // Even though it's not possible to manually move a window above the
 709 // top of the screen, it is allowed if it's done programmatically,
 710 // when the menu is hidden. This allows the editable area to cover the
 711 // full screen height.
 712 //
 713 // Test cases
 714 // ----------
 715 //
 716 // Use the following extra files:
 717 //
 718 //    init.el:
 719 //       ;; Hide menu and place frame slightly above the top of the screen.
 720 //       (setq ns-auto-hide-menu-bar t)
 721 //       (set-frame-position (selected-frame) 0 -20)
 722 //
 723 // Test 1:
 724 //
 725 //    emacs -Q -l init.el
 726 //
 727 //    Result: No menu bar, and the title bar should be above the screen.
 728 //
 729 // Test 2:
 730 //
 731 //    emacs -Q
 732 //
 733 //    Result: Menu bar visible, frame placed immediately below the menu.
 734 //
 735
 736 static NSRect constrain_frame_rect(NSRect frameRect)
 737 {
 738   NSTRACE ("constrain_frame_rect(" NSTRACE_FMT_RECT ")",
 739              NSTRACE_ARG_RECT (frameRect));
 740
 741   // --------------------
 742   // Collect information about the screen the frame is covering.
 743   //
 744
 745   NSArray *screens = [NSScreen screens];
 746   NSUInteger nr_screens = [screens count];
 747
 748   int i;
 749
 750   // The height of the menu bar, if present in any screen the frame is
 751   // displayed in.
 752   int menu_bar_height = 0;
 753
 754   // A rectangle covering all the screen the frame is displayed in.
 755   NSRect multiscreenRect = NSMakeRect(0, 0, 0, 0);
 756   for (i = 0; i < nr_screens; ++i )
 757     {
 758       NSScreen *s = [screens objectAtIndex: i];
 759       NSRect scrRect = [s frame];
 760
 761       NSTRACE_MSG ("Screen %d: " NSTRACE_FMT_RECT,
 762                    i, NSTRACE_ARG_RECT (scrRect));
 763
 764       if (NSIntersectionRect (frameRect, scrRect).size.height != 0)
 765         {
 766           multiscreenRect = NSUnionRect (multiscreenRect, scrRect);
 767
 768           menu_bar_height = max(menu_bar_height, ns_menu_bar_height (s));
 769         }
 770     }
 771
 772   NSTRACE_RECT ("multiscreenRect", multiscreenRect);
 773
 774   NSTRACE_MSG ("menu_bar_height: %d", menu_bar_height);
 775
 776   if (multiscreenRect.size.width == 0
 777       || multiscreenRect.size.height == 0)
 778     {
 779       // Failed to find any monitor, give up.
 780       NSTRACE_MSG ("multiscreenRect empty");
 781       NSTRACE_RETURN_RECT (frameRect);
 782       return frameRect;
 783     }
 784
 785
 786   // --------------------
 787   // Find a suitable placement.
 788   //
 789
 790   if (ns_menu_bar_should_be_hidden())
 791     {
 792       // When the menu bar is hidden, the user may place part of the
 793       // frame above the top of the screen, for example to hide the
 794       // title bar.
 795       //
 796       // Hence, keep the original position.
 797     }
 798   else
 799     {
 800       // Ensure that the frame is below the menu bar, or below the top
 801       // of the screen.
 802       //
 803       // This assume that the menu bar is placed at the top in the
 804       // rectangle that covers the monitors.  (It doesn't have to be,
 805       // but if it's not it's hard to do anything useful.)
 806       CGFloat topOfWorkArea = (multiscreenRect.origin.y
 807                                + multiscreenRect.size.height
 808                                - menu_bar_height);
 809
 810       CGFloat topOfFrame = frameRect.origin.y + frameRect.size.height;
 811       if (topOfFrame > topOfWorkArea)
 812         {
 813           frameRect.origin.y -= topOfFrame - topOfWorkArea;
 814           NSTRACE_RECT ("After placement adjust", frameRect);
 815         }
 816     }
 817
 818   // Include the following section to restrict frame to the screens.
 819   // (If so, update it to allow the frame to stretch down below the
 820   // screen.)
 821 #if 0
 822   // --------------------
 823   // Ensure frame doesn't stretch below the screens.
 824   //
 825
 826   CGFloat diff = multiscreenRect.origin.y - frameRect.origin.y;
 827
 828   if (diff > 0)
 829     {
 830       frameRect.origin.y = multiscreenRect.origin.y;
 831       frameRect.size.height -= diff;
 832     }
 833 #endif
 834
 835   NSTRACE_RETURN_RECT (frameRect);
 836   return frameRect;
 837 }
 838
 839
 840 static void
 841 ns_constrain_all_frames (void)
 842 {
 843   Lisp_Object tail, frame;
 844
 845   NSTRACE ("ns_constrain_all_frames");
 846
 847   block_input ();
 848
 849   FOR_EACH_FRAME (tail, frame)
 850     {
 851       struct frame *f = XFRAME (frame);
 852       if (FRAME_NS_P (f))
 853         {
 854           NSView *view = FRAME_NS_VIEW (f);
 855
 856           [[view window] setFrame:constrain_frame_rect([[view window] frame])
 857                           display:NO];
 858         }
 859     }
 860
 861   unblock_input ();
 862 }
 863
 864
 865 /* Show or hide the menu bar, based on user setting.  */
 866
 867 static void
 868 ns_update_auto_hide_menu_bar (void)
 869 {
 870 #ifdef NS_IMPL_COCOA
 871   NSTRACE ("ns_update_auto_hide_menu_bar");
 872
 873   block_input ();
 874
 875   if (NSApp != nil && [NSApp isActive])
 876     {
 877       // Note, "setPresentationOptions" triggers an error unless the
 878       // application is active.
 879       BOOL menu_bar_should_be_hidden = ns_menu_bar_should_be_hidden ();
 880
 881       if (menu_bar_should_be_hidden != ns_menu_bar_is_hidden)
 882         {
 883           NSApplicationPresentationOptions options
 884             = NSApplicationPresentationDefault;
 885
 886           if (menu_bar_should_be_hidden)
 887             options |= NSApplicationPresentationAutoHideMenuBar
 888               | NSApplicationPresentationAutoHideDock;
 889
 890           [NSApp setPresentationOptions: options];
 891
 892           ns_menu_bar_is_hidden = menu_bar_should_be_hidden;
 893
 894           if (!ns_menu_bar_is_hidden)
 895             {
 896               ns_constrain_all_frames ();
 897             }
 898         }
 899     }
 900
 901   unblock_input ();
 902 #endif
 903 }
 904
 905
 906 static void
 907 ns_update_begin (struct frame *f)
 908 /* --------------------------------------------------------------------------
 909    Prepare for a grouped sequence of drawing calls
 910    external (RIF) call; whole frame, called before update_window_begin
 911    -------------------------------------------------------------------------- */
 912 {
 913   EmacsView *view = FRAME_NS_VIEW (f);
 914   NSTRACE ("ns_update_begin");
 915
 916   ns_update_auto_hide_menu_bar ();
 917
 918 #ifdef NS_IMPL_COCOA
 919   if ([view isFullscreen] && [view fsIsNative])
 920   {
 921     // Fix reappearing tool bar in fullscreen for OSX 10.7
 922     BOOL tbar_visible = FRAME_EXTERNAL_TOOL_BAR (f) ? YES : NO;
 923     NSToolbar *toolbar = [FRAME_NS_VIEW (f) toolbar];
 924     if (! tbar_visible != ! [toolbar isVisible])
 925       [toolbar setVisible: tbar_visible];
 926   }
 927 #endif
 928
 929   ns_updating_frame = f;
 930   [view lockFocus];
 931
 932   /* drawRect may have been called for say the minibuffer, and then clip path
 933      is for the minibuffer.  But the display engine may draw more because
 934      we have set the frame as garbaged.  So reset clip path to the whole
 935      view.  */
 936 #ifdef NS_IMPL_COCOA
 937   {
 938     NSBezierPath *bp;
 939     NSRect r = [view frame];
 940     NSRect cr = [[view window] frame];
 941     /* If a large frame size is set, r may be larger than the window frame
 942        before constrained.  In that case don't change the clip path, as we
 943        will clear in to the tool bar and title bar.  */
 944     if (r.size.height
 945         + FRAME_NS_TITLEBAR_HEIGHT (f)
 946         + FRAME_TOOLBAR_HEIGHT (f) <= cr.size.height)
 947       {
 948         bp = [[NSBezierPath bezierPathWithRect: r] retain];
 949         [bp setClip];
 950         [bp release];
 951       }
 952   }
 953 #endif
 954
 955 #ifdef NS_IMPL_GNUSTEP
 956   uRect = NSMakeRect (0, 0, 0, 0);
 957 #endif
 958 }
 959
 960
 961 static void
 962 ns_update_window_begin (struct window *w)
 963 /* --------------------------------------------------------------------------
 964    Prepare for a grouped sequence of drawing calls
 965    external (RIF) call; for one window, called after update_begin
 966    -------------------------------------------------------------------------- */
 967 {
 968   struct frame *f = XFRAME (WINDOW_FRAME (w));
 969   Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
 970
 971   NSTRACE ("ns_update_window_begin");
 972   w->output_cursor = w->cursor;
 973
 974   block_input ();
 975
 976   if (f == hlinfo->mouse_face_mouse_frame)
 977     {
 978       /* Don't do highlighting for mouse motion during the update.  */
 979       hlinfo->mouse_face_defer = 1;
 980
 981         /* If the frame needs to be redrawn,
 982            simply forget about any prior mouse highlighting.  */
 983       if (FRAME_GARBAGED_P (f))
 984         hlinfo->mouse_face_window = Qnil;
 985
 986       /* (further code for mouse faces ifdef'd out in other terms elided) */
 987     }
 988
 989   unblock_input ();
 990 }
 991
 992
 993 static void
 994 ns_update_window_end (struct window *w, bool cursor_on_p,
 995                       bool mouse_face_overwritten_p)
 996 /* --------------------------------------------------------------------------
 997    Finished a grouped sequence of drawing calls
 998    external (RIF) call; for one window called before update_end
 999    -------------------------------------------------------------------------- */
1000 {
1001   NSTRACE ("update_window_end");
1002
1003   /* note: this fn is nearly identical in all terms */
1004   if (!w->pseudo_window_p)
1005     {
1006       block_input ();
1007
1008       if (cursor_on_p)
1009         display_and_set_cursor (w, 1,
1010                                 w->output_cursor.hpos, w->output_cursor.vpos,
1011                                 w->output_cursor.x, w->output_cursor.y);
1012
1013       if (draw_window_fringes (w, 1))
1014         {
1015           if (WINDOW_RIGHT_DIVIDER_WIDTH (w))
1016             x_draw_right_divider (w);
1017           else
1018             x_draw_vertical_border (w);
1019         }
1020
1021       unblock_input ();
1022     }
1023
1024   /* If a row with mouse-face was overwritten, arrange for
1025      frame_up_to_date to redisplay the mouse highlight.  */
1026   if (mouse_face_overwritten_p)
1027     reset_mouse_highlight (MOUSE_HL_INFO (XFRAME (w->frame)));
1028 }
1029
1030
1031 static void
1032 ns_update_end (struct frame *f)
1033 /* --------------------------------------------------------------------------
1034    Finished a grouped sequence of drawing calls
1035    external (RIF) call; for whole frame, called after update_window_end
1036    -------------------------------------------------------------------------- */
1037 {
1038   EmacsView *view = FRAME_NS_VIEW (f);
1039
1040   NSTRACE ("ns_update_end");
1041
1042 /*   if (f == MOUSE_HL_INFO (f)->mouse_face_mouse_frame) */
1043   MOUSE_HL_INFO (f)->mouse_face_defer = 0;
1044
1045   block_input ();
1046
1047   [view unlockFocus];
1048   [[view window] flushWindow];
1049
1050   unblock_input ();
1051   ns_updating_frame = NULL;
1052 }
1053
1054 static void
1055 ns_focus (struct frame *f, NSRect *r, int n)
1056 /* --------------------------------------------------------------------------
1057    Internal: Focus on given frame.  During small local updates this is used to
1058      draw, however during large updates, ns_update_begin and ns_update_end are
1059      called to wrap the whole thing, in which case these calls are stubbed out.
1060      Except, on GNUstep, we accumulate the rectangle being drawn into, because
1061      the back end won't do this automatically, and will just end up flushing
1062      the entire window.
1063    -------------------------------------------------------------------------- */
1064 {
1065 //  NSTRACE ("ns_focus");
1066 /* static int c =0;
1067    fprintf (stderr, "focus: %d", c++);
1068    if (r) fprintf (stderr, " (%.0f, %.0f : %.0f x %.0f)", r->origin.x, r->origin.y, r->size.width, r->size.height);
1069    fprintf (stderr, "\n"); */
1070
1071   if (f != ns_updating_frame)
1072     {
1073       NSView *view = FRAME_NS_VIEW (f);
1074       if (view != focus_view)
1075         {
1076           if (focus_view != NULL)
1077             {
1078               [focus_view unlockFocus];
1079               [[focus_view window] flushWindow];
1080 /*debug_lock--; */
1081             }
1082
1083           if (view)
1084             [view lockFocus];
1085           focus_view = view;
1086 /*if (view) debug_lock++; */
1087         }
1088     }
1089
1090   /* clipping */
1091   if (r)
1092     {
1093       [[NSGraphicsContext currentContext] saveGraphicsState];
1094       if (n == 2)
1095         NSRectClipList (r, 2);
1096       else
1097         NSRectClip (*r);
1098       gsaved = YES;
1099     }
1100 }
1101
1102
1103 static void
1104 ns_unfocus (struct frame *f)
1105 /* --------------------------------------------------------------------------
1106      Internal: Remove focus on given frame
1107    -------------------------------------------------------------------------- */
1108 {
1109 //  NSTRACE ("ns_unfocus");
1110
1111   if (gsaved)
1112     {
1113       [[NSGraphicsContext currentContext] restoreGraphicsState];
1114       gsaved = NO;
1115     }
1116
1117   if (f != ns_updating_frame)
1118     {
1119       if (focus_view != NULL)
1120         {
1121           [focus_view unlockFocus];
1122           [[focus_view window] flushWindow];
1123           focus_view = NULL;
1124 /*debug_lock--; */
1125         }
1126     }
1127 }
1128
1129
1130 static void
1131 ns_clip_to_row (struct window *w, struct glyph_row *row,
1132                 enum glyph_row_area area, BOOL gc)
1133 /* --------------------------------------------------------------------------
1134      Internal (but parallels other terms): Focus drawing on given row
1135    -------------------------------------------------------------------------- */
1136 {
1137   struct frame *f = XFRAME (WINDOW_FRAME (w));
1138   NSRect clip_rect;
1139   int window_x, window_y, window_width;
1140
1141   window_box (w, area, &window_x, &window_y, &window_width, 0);
1142
1143   clip_rect.origin.x = window_x;
1144   clip_rect.origin.y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, row->y));
1145   clip_rect.origin.y = max (clip_rect.origin.y, window_y);
1146   clip_rect.size.width = window_width;
1147   clip_rect.size.height = row->visible_height;
1148
1149   ns_focus (f, &clip_rect, 1);
1150 }
1151
1152
1153 static void
1154 ns_ring_bell (struct frame *f)
1155 /* --------------------------------------------------------------------------
1156      "Beep" routine
1157    -------------------------------------------------------------------------- */
1158 {
1159   NSTRACE ("ns_ring_bell");
1160   if (visible_bell)
1161     {
1162       NSAutoreleasePool *pool;
1163       struct frame *frame = SELECTED_FRAME ();
1164       NSView *view;
1165
1166       block_input ();
1167       pool = [[NSAutoreleasePool alloc] init];
1168
1169       view = FRAME_NS_VIEW (frame);
1170       if (view != nil)
1171         {
1172           NSRect r, surr;
1173           NSPoint dim = NSMakePoint (128, 128);
1174
1175           r = [view bounds];
1176           r.origin.x += (r.size.width - dim.x) / 2;
1177           r.origin.y += (r.size.height - dim.y) / 2;
1178           r.size.width = dim.x;
1179           r.size.height = dim.y;
1180           surr = NSInsetRect (r, -2, -2);
1181           ns_focus (frame, &surr, 1);
1182           [[view window] cacheImageInRect: [view convertRect: surr toView:nil]];
1183           [ns_lookup_indexed_color (NS_FACE_FOREGROUND
1184                                       (FRAME_DEFAULT_FACE (frame)), frame) set];
1185           NSRectFill (r);
1186           [[view window] flushWindow];
1187           ns_timeout (150000);
1188           [[view window] restoreCachedImage];
1189           [[view window] flushWindow];
1190           ns_unfocus (frame);
1191         }
1192       [pool release];
1193       unblock_input ();
1194     }
1195   else
1196     {
1197       NSBeep ();
1198     }
1199 }
1200
1201 /* ==========================================================================
1202
1203     Frame / window manager related functions
1204
1205    ========================================================================== */
1206
1207
1208 static void
1209 ns_raise_frame (struct frame *f)
1210 /* --------------------------------------------------------------------------
1211      Bring window to foreground and make it active
1212    -------------------------------------------------------------------------- */
1213 {
1214   NSView *view;
1215   check_window_system (f);
1216   view = FRAME_NS_VIEW (f);
1217   block_input ();
1218   if (FRAME_VISIBLE_P (f))
1219     [[view window] makeKeyAndOrderFront: NSApp];
1220   unblock_input ();
1221 }
1222
1223
1224 static void
1225 ns_lower_frame (struct frame *f)
1226 /* --------------------------------------------------------------------------
1227      Send window to back
1228    -------------------------------------------------------------------------- */
1229 {
1230   NSView *view;
1231   check_window_system (f);
1232   view = FRAME_NS_VIEW (f);
1233   block_input ();
1234   [[view window] orderBack: NSApp];
1235   unblock_input ();
1236 }
1237
1238
1239 static void
1240 ns_frame_raise_lower (struct frame *f, bool raise)
1241 /* --------------------------------------------------------------------------
1242      External (hook)
1243    -------------------------------------------------------------------------- */
1244 {
1245   NSTRACE ("ns_frame_raise_lower");
1246
1247   if (raise)
1248     ns_raise_frame (f);
1249   else
1250     ns_lower_frame (f);
1251 }
1252
1253
1254 static void
1255 ns_frame_rehighlight (struct frame *frame)
1256 /* --------------------------------------------------------------------------
1257      External (hook): called on things like window switching within frame
1258    -------------------------------------------------------------------------- */
1259 {
1260   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (frame);
1261   struct frame *old_highlight = dpyinfo->x_highlight_frame;
1262
1263   NSTRACE ("ns_frame_rehighlight");
1264   if (dpyinfo->x_focus_frame)
1265     {
1266       dpyinfo->x_highlight_frame
1267         = (FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
1268            ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
1269            : dpyinfo->x_focus_frame);
1270       if (!FRAME_LIVE_P (dpyinfo->x_highlight_frame))
1271         {
1272           fset_focus_frame (dpyinfo->x_focus_frame, Qnil);
1273           dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame;
1274         }
1275     }
1276   else
1277       dpyinfo->x_highlight_frame = 0;
1278
1279   if (dpyinfo->x_highlight_frame &&
1280          dpyinfo->x_highlight_frame != old_highlight)
1281     {
1282       if (old_highlight)
1283         {
1284           x_update_cursor (old_highlight, 1);
1285           x_set_frame_alpha (old_highlight);
1286         }
1287       if (dpyinfo->x_highlight_frame)
1288         {
1289           x_update_cursor (dpyinfo->x_highlight_frame, 1);
1290           x_set_frame_alpha (dpyinfo->x_highlight_frame);
1291         }
1292     }
1293 }
1294
1295
1296 void
1297 x_make_frame_visible (struct frame *f)
1298 /* --------------------------------------------------------------------------
1299      External: Show the window (X11 semantics)
1300    -------------------------------------------------------------------------- */
1301 {
1302   NSTRACE ("x_make_frame_visible");
1303   /* XXX: at some points in past this was not needed, as the only place that
1304      called this (frame.c:Fraise_frame ()) also called raise_lower;
1305      if this ends up the case again, comment this out again. */
1306   if (!FRAME_VISIBLE_P (f))
1307     {
1308       EmacsView *view = (EmacsView *)FRAME_NS_VIEW (f);
1309
1310       SET_FRAME_VISIBLE (f, 1);
1311       ns_raise_frame (f);
1312
1313       /* Making a new frame from a fullscreen frame will make the new frame
1314          fullscreen also.  So skip handleFS as this will print an error.  */
1315       if ([view fsIsNative] && f->want_fullscreen == FULLSCREEN_BOTH
1316           && [view isFullscreen])
1317         return;
1318
1319       if (f->want_fullscreen != FULLSCREEN_NONE)
1320         {
1321           block_input ();
1322           [view handleFS];
1323           unblock_input ();
1324         }
1325     }
1326 }
1327
1328
1329 void
1330 x_make_frame_invisible (struct frame *f)
1331 /* --------------------------------------------------------------------------
1332      External: Hide the window (X11 semantics)
1333    -------------------------------------------------------------------------- */
1334 {
1335   NSView *view;
1336   NSTRACE ("x_make_frame_invisible");
1337   check_window_system (f);
1338   view = FRAME_NS_VIEW (f);
1339   [[view window] orderOut: NSApp];
1340   SET_FRAME_VISIBLE (f, 0);
1341   SET_FRAME_ICONIFIED (f, 0);
1342 }
1343
1344
1345 void
1346 x_iconify_frame (struct frame *f)
1347 /* --------------------------------------------------------------------------
1348      External: Iconify window
1349    -------------------------------------------------------------------------- */
1350 {
1351   NSView *view;
1352   struct ns_display_info *dpyinfo;
1353
1354   NSTRACE ("x_iconify_frame");
1355   check_window_system (f);
1356   view = FRAME_NS_VIEW (f);
1357   dpyinfo = FRAME_DISPLAY_INFO (f);
1358
1359   if (dpyinfo->x_highlight_frame == f)
1360     dpyinfo->x_highlight_frame = 0;
1361
1362   if ([[view window] windowNumber] <= 0)
1363     {
1364       /* the window is still deferred.  Make it very small, bring it
1365          on screen and order it out. */
1366       NSRect s = { { 100, 100}, {0, 0} };
1367       NSRect t;
1368       t = [[view window] frame];
1369       [[view window] setFrame: s display: NO];
1370       [[view window] orderBack: NSApp];
1371       [[view window] orderOut: NSApp];
1372       [[view window] setFrame: t display: NO];
1373     }
1374   [[view window] miniaturize: NSApp];
1375 }
1376
1377 /* Free X resources of frame F.  */
1378
1379 void
1380 x_free_frame_resources (struct frame *f)
1381 {
1382   NSView *view;
1383   struct ns_display_info *dpyinfo;
1384   Mouse_HLInfo *hlinfo;
1385
1386   NSTRACE ("x_free_frame_resources");
1387   check_window_system (f);
1388   view = FRAME_NS_VIEW (f);
1389   dpyinfo = FRAME_DISPLAY_INFO (f);
1390   hlinfo = MOUSE_HL_INFO (f);
1391
1392   [(EmacsView *)view setWindowClosing: YES]; /* may not have been informed */
1393
1394   block_input ();
1395
1396   free_frame_menubar (f);
1397   free_frame_faces (f);
1398
1399   if (f == dpyinfo->x_focus_frame)
1400     dpyinfo->x_focus_frame = 0;
1401   if (f == dpyinfo->x_highlight_frame)
1402     dpyinfo->x_highlight_frame = 0;
1403   if (f == hlinfo->mouse_face_mouse_frame)
1404     reset_mouse_highlight (hlinfo);
1405
1406   if (f->output_data.ns->miniimage != nil)
1407     [f->output_data.ns->miniimage release];
1408
1409   [[view window] close];
1410   [view release];
1411
1412   xfree (f->output_data.ns);
1413
1414   unblock_input ();
1415 }
1416
1417 void
1418 x_destroy_window (struct frame *f)
1419 /* --------------------------------------------------------------------------
1420      External: Delete the window
1421    -------------------------------------------------------------------------- */
1422 {
1423   NSTRACE ("x_destroy_window");
1424   check_window_system (f);
1425   x_free_frame_resources (f);
1426   ns_window_num--;
1427 }
1428
1429
1430 void
1431 x_set_offset (struct frame *f, int xoff, int yoff, int change_grav)
1432 /* --------------------------------------------------------------------------
1433      External: Position the window
1434    -------------------------------------------------------------------------- */
1435 {
1436   NSView *view = FRAME_NS_VIEW (f);
1437   NSArray *screens = [NSScreen screens];
1438   NSScreen *fscreen = [screens objectAtIndex: 0];
1439   NSScreen *screen = [[view window] screen];
1440
1441   NSTRACE ("x_set_offset");
1442
1443   block_input ();
1444
1445   f->left_pos = xoff;
1446   f->top_pos = yoff;
1447
1448   if (view != nil && screen && fscreen)
1449     {
1450       f->left_pos = f->size_hint_flags & XNegative
1451         ? [screen visibleFrame].size.width + f->left_pos - FRAME_PIXEL_WIDTH (f)
1452         : f->left_pos;
1453       /* We use visibleFrame here to take menu bar into account.
1454          Ideally we should also adjust left/top with visibleFrame.origin.  */
1455
1456       f->top_pos = f->size_hint_flags & YNegative
1457         ? ([screen visibleFrame].size.height + f->top_pos
1458            - FRAME_PIXEL_HEIGHT (f) - FRAME_NS_TITLEBAR_HEIGHT (f)
1459            - FRAME_TOOLBAR_HEIGHT (f))
1460         : f->top_pos;
1461 #ifdef NS_IMPL_GNUSTEP
1462       if (f->left_pos < 100)
1463         f->left_pos = 100;  /* don't overlap menu */
1464 #endif
1465       /* Constrain the setFrameTopLeftPoint so we don't move behind the
1466          menu bar.  */
1467       NSPoint pt = NSMakePoint (SCREENMAXBOUND (f->left_pos),
1468                                 SCREENMAXBOUND ([fscreen frame].size.height
1469                                                 - NS_TOP_POS (f)));
1470       NSTRACE_POINT ("setFrameTopLeftPoint", pt);
1471       [[view window] setFrameTopLeftPoint: pt];
1472       f->size_hint_flags &= ~(XNegative|YNegative);
1473     }
1474
1475   unblock_input ();
1476 }
1477
1478
1479 void
1480 x_set_window_size (struct frame *f,
1481                    bool change_gravity,
1482                    int width,
1483                    int height,
1484                    bool pixelwise)
1485 /* --------------------------------------------------------------------------
1486      Adjust window pixel size based on given character grid size
1487      Impl is a bit more complex than other terms, need to do some
1488      internal clipping.
1489    -------------------------------------------------------------------------- */
1490 {
1491   EmacsView *view = FRAME_NS_VIEW (f);
1492   NSWindow *window = [view window];
1493   NSRect wr = [window frame];
1494   int tb = FRAME_EXTERNAL_TOOL_BAR (f);
1495   int pixelwidth, pixelheight;
1496   int rows, cols;
1497   int orig_height = wr.size.height;
1498
1499   NSTRACE ("x_set_window_size");
1500
1501   if (view == nil)
1502     return;
1503
1504   NSTRACE_RECT ("current", wr);
1505
1506 /*fprintf (stderr, "\tsetWindowSize: %d x %d, pixelwise %d, font size %d x %d\n", width, height, pixelwise, FRAME_COLUMN_WIDTH (f), FRAME_LINE_HEIGHT (f));*/
1507
1508   block_input ();
1509
1510   if (pixelwise)
1511     {
1512       pixelwidth = FRAME_TEXT_TO_PIXEL_WIDTH (f, width);
1513       pixelheight = FRAME_TEXT_TO_PIXEL_HEIGHT (f, height);
1514       cols = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, pixelwidth);
1515       rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, pixelheight);
1516     }
1517   else
1518     {
1519       pixelwidth =  FRAME_TEXT_COLS_TO_PIXEL_WIDTH   (f, width);
1520       pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, height);
1521       cols = width;
1522       rows = height;
1523     }
1524
1525   /* If we have a toolbar, take its height into account. */
1526   if (tb && ! [view isFullscreen])
1527     {
1528     /* NOTE: previously this would generate wrong result if toolbar not
1529              yet displayed and fixing toolbar_height=32 helped, but
1530              now (200903) seems no longer needed */
1531     FRAME_TOOLBAR_HEIGHT (f) =
1532       NSHeight ([window frameRectForContentRect: NSMakeRect (0, 0, 0, 0)])
1533         - FRAME_NS_TITLEBAR_HEIGHT (f);
1534 #if 0
1535       /* Only breaks things here, removed by martin 2015-09-30.  */
1536 #ifdef NS_IMPL_GNUSTEP
1537       FRAME_TOOLBAR_HEIGHT (f) -= 3;
1538 #endif
1539 #endif
1540     }
1541   else
1542     FRAME_TOOLBAR_HEIGHT (f) = 0;
1543
1544   wr.size.width = pixelwidth + f->border_width;
1545   wr.size.height = pixelheight;
1546   if (! [view isFullscreen])
1547     wr.size.height += FRAME_NS_TITLEBAR_HEIGHT (f)
1548       + FRAME_TOOLBAR_HEIGHT (f);
1549
1550   /* Do not try to constrain to this screen.  We may have multiple
1551      screens, and want Emacs to span those.  Constraining to screen
1552      prevents that, and that is not nice to the user.  */
1553  if (f->output_data.ns->zooming)
1554    f->output_data.ns->zooming = 0;
1555  else
1556    wr.origin.y += orig_height - wr.size.height;
1557
1558  frame_size_history_add
1559    (f, Qx_set_window_size_1, width, height,
1560     list5 (Fcons (make_number (pixelwidth), make_number (pixelheight)),
1561            Fcons (make_number (wr.size.width), make_number (wr.size.height)),
1562            make_number (f->border_width),
1563            make_number (FRAME_NS_TITLEBAR_HEIGHT (f)),
1564            make_number (FRAME_TOOLBAR_HEIGHT (f))));
1565
1566   NSTRACE_RECT ("setFrame", wr);
1567   [window setFrame: wr display: YES];
1568
1569   /* This is a trick to compensate for Emacs' managing the scrollbar area
1570      as a fixed number of standard character columns.  Instead of leaving
1571      blank space for the extra, we chopped it off above.  Now for
1572      left-hand scrollbars, we shift all rendering to the left by the
1573      difference between the real width and Emacs' imagined one.  For
1574      right-hand bars, don't worry about it since the extra is never used.
1575      (Obviously doesn't work for vertically split windows tho..) */
1576   {
1577     NSPoint origin = FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)
1578       ? NSMakePoint (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)
1579                      - NS_SCROLL_BAR_WIDTH (f), 0)
1580       : NSMakePoint (0, 0);
1581     NSTRACE_RECT ("setFrame", wr);
1582     [view setFrame: NSMakeRect (0, 0, pixelwidth, pixelheight)];
1583     [view setBoundsOrigin: origin];
1584   }
1585
1586   [view updateFrameSize: NO];
1587   unblock_input ();
1588 }
1589
1590
1591 static void
1592 ns_fullscreen_hook (struct frame *f)
1593 {
1594   EmacsView *view = (EmacsView *)FRAME_NS_VIEW (f);
1595
1596   NSTRACE ("ns_fullscreen_hook");
1597
1598   if (!FRAME_VISIBLE_P (f))
1599     return;
1600
1601    if (! [view fsIsNative] && f->want_fullscreen == FULLSCREEN_BOTH)
1602     {
1603       /* Old style fs don't initiate correctly if created from
1604          init/default-frame alist, so use a timer (not nice...).
1605       */
1606       [NSTimer scheduledTimerWithTimeInterval: 0.5 target: view
1607                                      selector: @selector (handleFS)
1608                                      userInfo: nil repeats: NO];
1609       return;
1610     }
1611
1612   block_input ();
1613   [view handleFS];
1614   unblock_input ();
1615 }
1616
1617 /* ==========================================================================
1618
1619     Color management
1620
1621    ========================================================================== */
1622
1623
1624 NSColor *
1625 ns_lookup_indexed_color (unsigned long idx, struct frame *f)
1626 {
1627   struct ns_color_table *color_table = FRAME_DISPLAY_INFO (f)->color_table;
1628   if (idx < 1 || idx >= color_table->avail)
1629     return nil;
1630   return color_table->colors[idx];
1631 }
1632
1633
1634 unsigned long
1635 ns_index_color (NSColor *color, struct frame *f)
1636 {
1637   struct ns_color_table *color_table = FRAME_DISPLAY_INFO (f)->color_table;
1638   ptrdiff_t idx;
1639   ptrdiff_t i;
1640
1641   if (!color_table->colors)
1642     {
1643       color_table->size = NS_COLOR_CAPACITY;
1644       color_table->avail = 1; /* skip idx=0 as marker */
1645       color_table->colors = xmalloc (color_table->size * sizeof (NSColor *));
1646       color_table->colors[0] = nil;
1647       color_table->empty_indices = [[NSMutableSet alloc] init];
1648     }
1649
1650   /* Do we already have this color?  */
1651   for (i = 1; i < color_table->avail; i++)
1652     if (color_table->colors[i] && [color_table->colors[i] isEqual: color])
1653       return i;
1654
1655   if ([color_table->empty_indices count] > 0)
1656     {
1657       NSNumber *index = [color_table->empty_indices anyObject];
1658       [color_table->empty_indices removeObject: index];
1659       idx = [index unsignedLongValue];
1660     }
1661   else
1662     {
1663       if (color_table->avail == color_table->size)
1664         color_table->colors =
1665           xpalloc (color_table->colors, &color_table->size, 1,
1666                    min (ULONG_MAX, PTRDIFF_MAX), sizeof *color_table->colors);
1667       idx = color_table->avail++;
1668     }
1669
1670   color_table->colors[idx] = color;
1671   [color retain];
1672 /*fprintf(stderr, "color_table: allocated %d\n",idx);*/
1673   return idx;
1674 }
1675
1676
1677 void
1678 ns_free_indexed_color (unsigned long idx, struct frame *f)
1679 {
1680   struct ns_color_table *color_table;
1681   NSColor *color;
1682   NSNumber *index;
1683
1684   if (!f)
1685     return;
1686
1687   color_table = FRAME_DISPLAY_INFO (f)->color_table;
1688
1689   if (idx <= 0 || idx >= color_table->size) {
1690     message1 ("ns_free_indexed_color: Color index out of range.\n");
1691     return;
1692   }
1693
1694   index = [NSNumber numberWithUnsignedInt: idx];
1695   if ([color_table->empty_indices containsObject: index]) {
1696     message1 ("ns_free_indexed_color: attempt to free already freed color.\n");
1697     return;
1698   }
1699
1700   color = color_table->colors[idx];
1701   [color release];
1702   color_table->colors[idx] = nil;
1703   [color_table->empty_indices addObject: index];
1704 /*fprintf(stderr, "color_table: FREED %d\n",idx);*/
1705 }
1706
1707
1708 static int
1709 ns_get_color (const char *name, NSColor **col)
1710 /* --------------------------------------------------------------------------
1711      Parse a color name
1712    -------------------------------------------------------------------------- */
1713 /* On *Step, we attempt to mimic the X11 platform here, down to installing an
1714    X11 rgb.txt-compatible color list in Emacs.clr (see ns_term_init()).
1715    See: http://thread.gmane.org/gmane.emacs.devel/113050/focus=113272). */
1716 {
1717   NSColor *new = nil;
1718   static char hex[20];
1719   int scaling = 0;
1720   float r = -1.0, g, b;
1721   NSString *nsname = [NSString stringWithUTF8String: name];
1722
1723 /*fprintf (stderr, "ns_get_color: '%s'\n", name); */
1724   block_input ();
1725
1726   if ([nsname isEqualToString: @"ns_selection_bg_color"])
1727     {
1728 #ifdef NS_IMPL_COCOA
1729       NSString *defname = [[NSUserDefaults standardUserDefaults]
1730                             stringForKey: @"AppleHighlightColor"];
1731       if (defname != nil)
1732         nsname = defname;
1733       else
1734 #endif
1735       if ((new = [NSColor selectedTextBackgroundColor]) != nil)
1736         {
1737           *col = [new colorUsingDefaultColorSpace];
1738           unblock_input ();
1739           return 0;
1740         }
1741       else
1742         nsname = NS_SELECTION_BG_COLOR_DEFAULT;
1743
1744       name = [nsname UTF8String];
1745     }
1746   else if ([nsname isEqualToString: @"ns_selection_fg_color"])
1747     {
1748       /* NOTE: OSX applications normally don't set foreground selection, but
1749          text may be unreadable if we don't.
1750       */
1751       if ((new = [NSColor selectedTextColor]) != nil)
1752         {
1753           *col = [new colorUsingDefaultColorSpace];
1754           unblock_input ();
1755           return 0;
1756         }
1757
1758       nsname = NS_SELECTION_FG_COLOR_DEFAULT;
1759       name = [nsname UTF8String];
1760     }
1761
1762   /* First, check for some sort of numeric specification. */
1763   hex[0] = '\0';
1764
1765   if (name[0] == '0' || name[0] == '1' || name[0] == '.')  /* RGB decimal */
1766     {
1767       NSScanner *scanner = [NSScanner scannerWithString: nsname];
1768       [scanner scanFloat: &r];
1769       [scanner scanFloat: &g];
1770       [scanner scanFloat: &b];
1771     }
1772   else if (!strncmp(name, "rgb:", 4))  /* A newer X11 format -- rgb:r/g/b */
1773     scaling = (snprintf (hex, sizeof hex, "%s", name + 4) - 2) / 3;
1774   else if (name[0] == '#')        /* An old X11 format; convert to newer */
1775     {
1776       int len = (strlen(name) - 1);
1777       int start = (len % 3 == 0) ? 1 : len / 4 + 1;
1778       int i;
1779       scaling = strlen(name+start) / 3;
1780       for (i = 0; i < 3; i++)
1781         sprintf (hex + i * (scaling + 1), "%.*s/", scaling,
1782                  name + start + i * scaling);
1783       hex[3 * (scaling + 1) - 1] = '\0';
1784     }
1785
1786   if (hex[0])
1787     {
1788       int rr, gg, bb;
1789       float fscale = scaling == 4 ? 65535.0 : (scaling == 2 ? 255.0 : 15.0);
1790       if (sscanf (hex, "%x/%x/%x", &rr, &gg, &bb))
1791         {
1792           r = rr / fscale;
1793           g = gg / fscale;
1794           b = bb / fscale;
1795         }
1796     }
1797
1798   if (r >= 0.0F)
1799     {
1800       *col = [NSColor colorForEmacsRed: r green: g blue: b alpha: 1.0];
1801       unblock_input ();
1802       return 0;
1803     }
1804
1805   /* Otherwise, color is expected to be from a list */
1806   {
1807     NSEnumerator *lenum, *cenum;
1808     NSString *name;
1809     NSColorList *clist;
1810
1811 #ifdef NS_IMPL_GNUSTEP
1812     /* XXX: who is wrong, the requestor or the implementation? */
1813     if ([nsname compare: @"Highlight" options: NSCaseInsensitiveSearch]
1814         == NSOrderedSame)
1815       nsname = @"highlightColor";
1816 #endif
1817
1818     lenum = [[NSColorList availableColorLists] objectEnumerator];
1819     while ( (clist = [lenum nextObject]) && new == nil)
1820       {
1821         cenum = [[clist allKeys] objectEnumerator];
1822         while ( (name = [cenum nextObject]) && new == nil )
1823           {
1824             if ([name compare: nsname
1825                       options: NSCaseInsensitiveSearch] == NSOrderedSame )
1826               new = [clist colorWithKey: name];
1827           }
1828       }
1829   }
1830
1831   if (new)
1832     *col = [new colorUsingDefaultColorSpace];
1833   unblock_input ();
1834   return new ? 0 : 1;
1835 }
1836
1837
1838 int
1839 ns_lisp_to_color (Lisp_Object color, NSColor **col)
1840 /* --------------------------------------------------------------------------
1841      Convert a Lisp string object to a NS color
1842    -------------------------------------------------------------------------- */
1843 {
1844   NSTRACE ("ns_lisp_to_color");
1845   if (STRINGP (color))
1846     return ns_get_color (SSDATA (color), col);
1847   else if (SYMBOLP (color))
1848     return ns_get_color (SSDATA (SYMBOL_NAME (color)), col);
1849   return 1;
1850 }
1851
1852
1853 Lisp_Object
1854 ns_color_to_lisp (NSColor *col)
1855 /* --------------------------------------------------------------------------
1856      Convert a color to a lisp string with the RGB equivalent
1857    -------------------------------------------------------------------------- */
1858 {
1859   EmacsCGFloat red, green, blue, alpha, gray;
1860   char buf[1024];
1861   const char *str;
1862   NSTRACE ("ns_color_to_lisp");
1863
1864   block_input ();
1865   if ([[col colorSpaceName] isEqualToString: NSNamedColorSpace])
1866
1867       if ((str =[[col colorNameComponent] UTF8String]))
1868         {
1869           unblock_input ();
1870           return build_string ((char *)str);
1871         }
1872
1873     [[col colorUsingDefaultColorSpace]
1874         getRed: &red green: &green blue: &blue alpha: &alpha];
1875   if (red == green && red == blue)
1876     {
1877       [[col colorUsingColorSpaceName: NSCalibratedWhiteColorSpace]
1878             getWhite: &gray alpha: &alpha];
1879       snprintf (buf, sizeof (buf), "#%2.2lx%2.2lx%2.2lx",
1880                 lrint (gray * 0xff), lrint (gray * 0xff), lrint (gray * 0xff));
1881       unblock_input ();
1882       return build_string (buf);
1883     }
1884
1885   snprintf (buf, sizeof (buf), "#%2.2lx%2.2lx%2.2lx",
1886             lrint (red*0xff), lrint (green*0xff), lrint (blue*0xff));
1887
1888   unblock_input ();
1889   return build_string (buf);
1890 }
1891
1892
1893 void
1894 ns_query_color(void *col, XColor *color_def, int setPixel)
1895 /* --------------------------------------------------------------------------
1896          Get ARGB values out of NSColor col and put them into color_def.
1897          If setPixel, set the pixel to a concatenated version.
1898          and set color_def pixel to the resulting index.
1899    -------------------------------------------------------------------------- */
1900 {
1901   EmacsCGFloat r, g, b, a;
1902
1903   [((NSColor *)col) getRed: &r green: &g blue: &b alpha: &a];
1904   color_def->red   = r * 65535;
1905   color_def->green = g * 65535;
1906   color_def->blue  = b * 65535;
1907
1908   if (setPixel == YES)
1909     color_def->pixel
1910       = ARGB_TO_ULONG((int)(a*255),
1911                       (int)(r*255), (int)(g*255), (int)(b*255));
1912 }
1913
1914
1915 bool
1916 ns_defined_color (struct frame *f,
1917                   const char *name,
1918                   XColor *color_def,
1919                   bool alloc,
1920                   bool makeIndex)
1921 /* --------------------------------------------------------------------------
1922          Return true if named color found, and set color_def rgb accordingly.
1923          If makeIndex and alloc are nonzero put the color in the color_table,
1924          and set color_def pixel to the resulting index.
1925          If makeIndex is zero, set color_def pixel to ARGB.
1926          Return false if not found
1927    -------------------------------------------------------------------------- */
1928 {
1929   NSColor *col;
1930   NSTRACE ("ns_defined_color");
1931
1932   block_input ();
1933   if (ns_get_color (name, &col) != 0) /* Color not found  */
1934     {
1935       unblock_input ();
1936       return 0;
1937     }
1938   if (makeIndex && alloc)
1939     color_def->pixel = ns_index_color (col, f);
1940   ns_query_color (col, color_def, !makeIndex);
1941   unblock_input ();
1942   return 1;
1943 }
1944
1945
1946 void
1947 x_set_frame_alpha (struct frame *f)
1948 /* --------------------------------------------------------------------------
1949      change the entire-frame transparency
1950    -------------------------------------------------------------------------- */
1951 {
1952   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
1953   double alpha = 1.0;
1954   double alpha_min = 1.0;
1955
1956   if (dpyinfo->x_highlight_frame == f)
1957     alpha = f->alpha[0];
1958   else
1959     alpha = f->alpha[1];
1960
1961   if (FLOATP (Vframe_alpha_lower_limit))
1962     alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
1963   else if (INTEGERP (Vframe_alpha_lower_limit))
1964     alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
1965
1966   if (alpha < 0.0)
1967     return;
1968   else if (1.0 < alpha)
1969     alpha = 1.0;
1970   else if (0.0 <= alpha && alpha < alpha_min && alpha_min <= 1.0)
1971     alpha = alpha_min;
1972
1973 #ifdef NS_IMPL_COCOA
1974   {
1975     EmacsView *view = FRAME_NS_VIEW (f);
1976   [[view window] setAlphaValue: alpha];
1977   }
1978 #endif
1979 }
1980
1981
1982 /* ==========================================================================
1983
1984     Mouse handling
1985
1986    ========================================================================== */
1987
1988
1989 void
1990 frame_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
1991 /* --------------------------------------------------------------------------
1992      Programmatically reposition mouse pointer in pixel coordinates
1993    -------------------------------------------------------------------------- */
1994 {
1995   NSTRACE ("frame_set_mouse_pixel_position");
1996   ns_raise_frame (f);
1997 #if 0
1998   /* FIXME: this does not work, and what about GNUstep? */
1999 #ifdef NS_IMPL_COCOA
2000   [FRAME_NS_VIEW (f) lockFocus];
2001   PSsetmouse ((float)pix_x, (float)pix_y);
2002   [FRAME_NS_VIEW (f) unlockFocus];
2003 #endif
2004 #endif
2005 }
2006
2007 static int
2008 note_mouse_movement (struct frame *frame, CGFloat x, CGFloat y)
2009 /*   ------------------------------------------------------------------------
2010      Called by EmacsView on mouseMovement events.  Passes on
2011      to emacs mainstream code if we moved off of a rect of interest
2012      known as last_mouse_glyph.
2013      ------------------------------------------------------------------------ */
2014 {
2015   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (frame);
2016   NSRect *r;
2017
2018 //  NSTRACE ("note_mouse_movement");
2019
2020   dpyinfo->last_mouse_motion_frame = frame;
2021   r = &dpyinfo->last_mouse_glyph;
2022
2023   /* Note, this doesn't get called for enter/leave, since we don't have a
2024      position.  Those are taken care of in the corresponding NSView methods. */
2025
2026   /* has movement gone beyond last rect we were tracking? */
2027   if (x < r->origin.x || x >= r->origin.x + r->size.width
2028       || y < r->origin.y || y >= r->origin.y + r->size.height)
2029     {
2030       ns_update_begin (frame);
2031       frame->mouse_moved = 1;
2032       note_mouse_highlight (frame, x, y);
2033       remember_mouse_glyph (frame, x, y, r);
2034       ns_update_end (frame);
2035       return 1;
2036     }
2037
2038   return 0;
2039 }
2040
2041
2042 static void
2043 ns_mouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
2044                    enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
2045                    Time *time)
2046 /* --------------------------------------------------------------------------
2047     External (hook): inform emacs about mouse position and hit parts.
2048     If a scrollbar is being dragged, set bar_window, part, x, y, time.
2049     x & y should be position in the scrollbar (the whole bar, not the handle)
2050     and length of scrollbar respectively
2051    -------------------------------------------------------------------------- */
2052 {
2053   id view;
2054   NSPoint position;
2055   Lisp_Object frame, tail;
2056   struct frame *f;
2057   struct ns_display_info *dpyinfo;
2058
2059   NSTRACE ("ns_mouse_position");
2060
2061   if (*fp == NULL)
2062     {
2063       fprintf (stderr, "Warning: ns_mouse_position () called with null *fp.\n");
2064       return;
2065     }
2066
2067   dpyinfo = FRAME_DISPLAY_INFO (*fp);
2068
2069   block_input ();
2070
2071   /* Clear the mouse-moved flag for every frame on this display.  */
2072   FOR_EACH_FRAME (tail, frame)
2073     if (FRAME_NS_P (XFRAME (frame))
2074         && FRAME_NS_DISPLAY (XFRAME (frame)) == FRAME_NS_DISPLAY (*fp))
2075       XFRAME (frame)->mouse_moved = 0;
2076
2077   dpyinfo->last_mouse_scroll_bar = nil;
2078   if (dpyinfo->last_mouse_frame
2079       && FRAME_LIVE_P (dpyinfo->last_mouse_frame))
2080     f = dpyinfo->last_mouse_frame;
2081   else
2082     f = dpyinfo->x_focus_frame ? dpyinfo->x_focus_frame : SELECTED_FRAME ();
2083
2084   if (f && FRAME_NS_P (f))
2085     {
2086       view = FRAME_NS_VIEW (*fp);
2087
2088       position = [[view window] mouseLocationOutsideOfEventStream];
2089       position = [view convertPoint: position fromView: nil];
2090       remember_mouse_glyph (f, position.x, position.y,
2091                             &dpyinfo->last_mouse_glyph);
2092 /*fprintf (stderr, "ns_mouse_position: %.0f, %.0f\n", position.x, position.y); */
2093
2094       if (bar_window) *bar_window = Qnil;
2095       if (part) *part = scroll_bar_above_handle;
2096
2097       if (x) XSETINT (*x, lrint (position.x));
2098       if (y) XSETINT (*y, lrint (position.y));
2099       if (time)
2100         *time = dpyinfo->last_mouse_movement_time;
2101       *fp = f;
2102     }
2103
2104   unblock_input ();
2105 }
2106
2107
2108 static void
2109 ns_frame_up_to_date (struct frame *f)
2110 /* --------------------------------------------------------------------------
2111     External (hook): Fix up mouse highlighting right after a full update.
2112     Can't use FRAME_MOUSE_UPDATE due to ns_frame_begin and ns_frame_end calls.
2113    -------------------------------------------------------------------------- */
2114 {
2115   NSTRACE ("ns_frame_up_to_date");
2116
2117   if (FRAME_NS_P (f))
2118     {
2119       Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
2120       if (f == hlinfo->mouse_face_mouse_frame)
2121         {
2122           block_input ();
2123           ns_update_begin(f);
2124           note_mouse_highlight (hlinfo->mouse_face_mouse_frame,
2125                                 hlinfo->mouse_face_mouse_x,
2126                                 hlinfo->mouse_face_mouse_y);
2127           ns_update_end(f);
2128           unblock_input ();
2129         }
2130     }
2131 }
2132
2133
2134 static void
2135 ns_define_frame_cursor (struct frame *f, Cursor cursor)
2136 /* --------------------------------------------------------------------------
2137     External (RIF): set frame mouse pointer type.
2138    -------------------------------------------------------------------------- */
2139 {
2140   NSTRACE ("ns_define_frame_cursor");
2141   if (FRAME_POINTER_TYPE (f) != cursor)
2142     {
2143       EmacsView *view = FRAME_NS_VIEW (f);
2144       FRAME_POINTER_TYPE (f) = cursor;
2145       [[view window] invalidateCursorRectsForView: view];
2146       /* Redisplay assumes this function also draws the changed frame
2147          cursor, but this function doesn't, so do it explicitly.  */
2148       x_update_cursor (f, 1);
2149     }
2150 }
2151
2152
2153
2154 /* ==========================================================================
2155
2156     Keyboard handling
2157
2158    ========================================================================== */
2159
2160
2161 static unsigned
2162 ns_convert_key (unsigned code)
2163 /* --------------------------------------------------------------------------
2164     Internal call used by NSView-keyDown.
2165    -------------------------------------------------------------------------- */
2166 {
2167   const unsigned last_keysym = ARRAYELTS (convert_ns_to_X_keysym);
2168   unsigned keysym;
2169   /* An array would be faster, but less easy to read. */
2170   for (keysym = 0; keysym < last_keysym; keysym += 2)
2171     if (code == convert_ns_to_X_keysym[keysym])
2172       return 0xFF00 | convert_ns_to_X_keysym[keysym+1];
2173   return 0;
2174 /* if decide to use keyCode and Carbon table, use this line:
2175      return code > 0xff ? 0 : 0xFF00 | ns_keycode_to_xkeysym_table[code]; */
2176 }
2177
2178
2179 char *
2180 x_get_keysym_name (int keysym)
2181 /* --------------------------------------------------------------------------
2182     Called by keyboard.c.  Not sure if the return val is important, except
2183     that it be unique.
2184    -------------------------------------------------------------------------- */
2185 {
2186   static char value[16];
2187   NSTRACE ("x_get_keysym_name");
2188   sprintf (value, "%d", keysym);
2189   return value;
2190 }
2191
2192
2193
2194 /* ==========================================================================
2195
2196     Block drawing operations
2197
2198    ========================================================================== */
2199
2200
2201 static void
2202 ns_redraw_scroll_bars (struct frame *f)
2203 {
2204   int i;
2205   id view;
2206   NSArray *subviews = [[FRAME_NS_VIEW (f) superview] subviews];
2207   NSTRACE ("ns_redraw_scroll_bars");
2208   for (i =[subviews count]-1; i >= 0; i--)
2209     {
2210       view = [subviews objectAtIndex: i];
2211       if (![view isKindOfClass: [EmacsScroller class]]) continue;
2212       [view display];
2213     }
2214 }
2215
2216
2217 void
2218 ns_clear_frame (struct frame *f)
2219 /* --------------------------------------------------------------------------
2220       External (hook): Erase the entire frame
2221    -------------------------------------------------------------------------- */
2222 {
2223   NSView *view = FRAME_NS_VIEW (f);
2224   NSRect r;
2225
2226   NSTRACE ("ns_clear_frame");
2227
2228  /* comes on initial frame because we have
2229     after-make-frame-functions = select-frame */
2230  if (!FRAME_DEFAULT_FACE (f))
2231    return;
2232
2233   mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
2234
2235   r = [view bounds];
2236
2237   block_input ();
2238   ns_focus (f, &r, 1);
2239   [ns_lookup_indexed_color (NS_FACE_BACKGROUND (FRAME_DEFAULT_FACE (f)), f) set];
2240   NSRectFill (r);
2241   ns_unfocus (f);
2242
2243   /* as of 2006/11 or so this is now needed */
2244   ns_redraw_scroll_bars (f);
2245   unblock_input ();
2246 }
2247
2248
2249 static void
2250 ns_clear_frame_area (struct frame *f, int x, int y, int width, int height)
2251 /* --------------------------------------------------------------------------
2252     External (RIF):  Clear section of frame
2253    -------------------------------------------------------------------------- */
2254 {
2255   NSRect r = NSMakeRect (x, y, width, height);
2256   NSView *view = FRAME_NS_VIEW (f);
2257   struct face *face = FRAME_DEFAULT_FACE (f);
2258
2259   if (!view || !face)
2260     return;
2261
2262   NSTRACE ("ns_clear_frame_area");
2263
2264   r = NSIntersectionRect (r, [view frame]);
2265   ns_focus (f, &r, 1);
2266   [ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), f) set];
2267
2268   NSRectFill (r);
2269
2270   ns_unfocus (f);
2271   return;
2272 }
2273
2274 static void
2275 ns_copy_bits (struct frame *f, NSRect src, NSRect dest)
2276 {
2277   if (FRAME_NS_VIEW (f))
2278     {
2279       ns_focus (f, &dest, 1);
2280       [FRAME_NS_VIEW (f) scrollRect: src
2281                                  by: NSMakeSize (dest.origin.x - src.origin.x,
2282                                                  dest.origin.y - src.origin.y)];
2283       ns_unfocus (f);
2284     }
2285 }
2286
2287 static void
2288 ns_scroll_run (struct window *w, struct run *run)
2289 /* --------------------------------------------------------------------------
2290     External (RIF):  Insert or delete n lines at line vpos
2291    -------------------------------------------------------------------------- */
2292 {
2293   struct frame *f = XFRAME (w->frame);
2294   int x, y, width, height, from_y, to_y, bottom_y;
2295
2296   NSTRACE ("ns_scroll_run");
2297
2298   /* begin copy from other terms */
2299   /* Get frame-relative bounding box of the text display area of W,
2300      without mode lines.  Include in this box the left and right
2301      fringe of W.  */
2302   window_box (w, ANY_AREA, &x, &y, &width, &height);
2303
2304   from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
2305   to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
2306   bottom_y = y + height;
2307
2308   if (to_y < from_y)
2309     {
2310       /* Scrolling up.  Make sure we don't copy part of the mode
2311          line at the bottom.  */
2312       if (from_y + run->height > bottom_y)
2313         height = bottom_y - from_y;
2314       else
2315         height = run->height;
2316     }
2317   else
2318     {
2319       /* Scrolling down.  Make sure we don't copy over the mode line.
2320          at the bottom.  */
2321       if (to_y + run->height > bottom_y)
2322         height = bottom_y - to_y;
2323       else
2324         height = run->height;
2325     }
2326   /* end copy from other terms */
2327
2328   if (height == 0)
2329       return;
2330
2331   block_input ();
2332
2333   x_clear_cursor (w);
2334
2335   {
2336     NSRect srcRect = NSMakeRect (x, from_y, width, height);
2337     NSRect dstRect = NSMakeRect (x, to_y, width, height);
2338
2339     ns_copy_bits (f, srcRect , dstRect);
2340   }
2341
2342   unblock_input ();
2343 }
2344
2345
2346 static void
2347 ns_after_update_window_line (struct window *w, struct glyph_row *desired_row)
2348 /* --------------------------------------------------------------------------
2349     External (RIF): preparatory to fringe update after text was updated
2350    -------------------------------------------------------------------------- */
2351 {
2352   struct frame *f;
2353   int width, height;
2354
2355   NSTRACE ("ns_after_update_window_line");
2356
2357   /* begin copy from other terms */
2358   eassert (w);
2359
2360   if (!desired_row->mode_line_p && !w->pseudo_window_p)
2361     desired_row->redraw_fringe_bitmaps_p = 1;
2362
2363   /* When a window has disappeared, make sure that no rest of
2364      full-width rows stays visible in the internal border.  */
2365   if (windows_or_buffers_changed
2366       && desired_row->full_width_p
2367       && (f = XFRAME (w->frame),
2368           width = FRAME_INTERNAL_BORDER_WIDTH (f),
2369           width != 0)
2370       && (height = desired_row->visible_height,
2371           height > 0))
2372     {
2373       int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
2374
2375       block_input ();
2376       ns_clear_frame_area (f, 0, y, width, height);
2377       ns_clear_frame_area (f,
2378                            FRAME_PIXEL_WIDTH (f) - width,
2379                            y, width, height);
2380       unblock_input ();
2381     }
2382 }
2383
2384
2385 static void
2386 ns_shift_glyphs_for_insert (struct frame *f,
2387                            int x, int y, int width, int height,
2388                            int shift_by)
2389 /* --------------------------------------------------------------------------
2390     External (RIF): copy an area horizontally, don't worry about clearing src
2391    -------------------------------------------------------------------------- */
2392 {
2393   NSRect srcRect = NSMakeRect (x, y, width, height);
2394   NSRect dstRect = NSMakeRect (x+shift_by, y, width, height);
2395
2396   NSTRACE ("ns_shift_glyphs_for_insert");
2397
2398   ns_copy_bits (f, srcRect, dstRect);
2399 }
2400
2401
2402
2403 /* ==========================================================================
2404
2405     Character encoding and metrics
2406
2407    ========================================================================== */
2408
2409
2410 static void
2411 ns_compute_glyph_string_overhangs (struct glyph_string *s)
2412 /* --------------------------------------------------------------------------
2413      External (RIF); compute left/right overhang of whole string and set in s
2414    -------------------------------------------------------------------------- */
2415 {
2416   struct font *font = s->font;
2417
2418   if (s->char2b)
2419     {
2420       struct font_metrics metrics;
2421       unsigned int codes[2];
2422       codes[0] = *(s->char2b);
2423       codes[1] = *(s->char2b + s->nchars - 1);
2424
2425       font->driver->text_extents (font, codes, 2, &metrics);
2426       s->left_overhang = -metrics.lbearing;
2427       s->right_overhang
2428         = metrics.rbearing > metrics.width
2429         ? metrics.rbearing - metrics.width : 0;
2430     }
2431   else
2432     {
2433       s->left_overhang = 0;
2434       if (EQ (font->driver->type, Qns))
2435         s->right_overhang = ((struct nsfont_info *)font)->ital ?
2436           FONT_HEIGHT (font) * 0.2 : 0;
2437       else
2438         s->right_overhang = 0;
2439     }
2440 }
2441
2442
2443
2444 /* ==========================================================================
2445
2446     Fringe and cursor drawing
2447
2448    ========================================================================== */
2449
2450
2451 extern int max_used_fringe_bitmap;
2452 static void
2453 ns_draw_fringe_bitmap (struct window *w, struct glyph_row *row,
2454                       struct draw_fringe_bitmap_params *p)
2455 /* --------------------------------------------------------------------------
2456     External (RIF); fringe-related
2457    -------------------------------------------------------------------------- */
2458 {
2459   struct frame *f = XFRAME (WINDOW_FRAME (w));
2460   struct face *face = p->face;
2461   static EmacsImage **bimgs = NULL;
2462   static int nBimgs = 0;
2463
2464   /* grow bimgs if needed */
2465   if (nBimgs < max_used_fringe_bitmap)
2466     {
2467       bimgs = xrealloc (bimgs, max_used_fringe_bitmap * sizeof *bimgs);
2468       memset (bimgs + nBimgs, 0,
2469               (max_used_fringe_bitmap - nBimgs) * sizeof *bimgs);
2470       nBimgs = max_used_fringe_bitmap;
2471     }
2472
2473   /* Must clip because of partially visible lines.  */
2474   ns_clip_to_row (w, row, ANY_AREA, YES);
2475
2476   if (!p->overlay_p)
2477     {
2478       int bx = p->bx, by = p->by, nx = p->nx, ny = p->ny;
2479
2480       if (bx >= 0 && nx > 0)
2481         {
2482           NSRect r = NSMakeRect (bx, by, nx, ny);
2483           NSRectClip (r);
2484           [ns_lookup_indexed_color (face->background, f) set];
2485           NSRectFill (r);
2486         }
2487     }
2488
2489   if (p->which)
2490     {
2491       NSRect r = NSMakeRect (p->x, p->y, p->wd, p->h);
2492       EmacsImage *img = bimgs[p->which - 1];
2493
2494       if (!img)
2495         {
2496           unsigned short *bits = p->bits + p->dh;
2497           int len = p->h;
2498           int i;
2499           unsigned char *cbits = xmalloc (len);
2500
2501           for (i = 0; i < len; i++)
2502             cbits[i] = ~(bits[i] & 0xff);
2503           img = [[EmacsImage alloc] initFromXBM: cbits width: 8 height: p->h
2504                                              fg: 0 bg: 0];
2505           bimgs[p->which - 1] = img;
2506           xfree (cbits);
2507         }
2508
2509       NSRectClip (r);
2510       /* Since we composite the bitmap instead of just blitting it, we need
2511          to erase the whole background. */
2512       [ns_lookup_indexed_color(face->background, f) set];
2513       NSRectFill (r);
2514
2515       {
2516         NSColor *bm_color;
2517         if (!p->cursor_p)
2518           bm_color = ns_lookup_indexed_color(face->foreground, f);
2519         else if (p->overlay_p)
2520           bm_color = ns_lookup_indexed_color(face->background, f);
2521         else
2522           bm_color = f->output_data.ns->cursor_color;
2523         [img setXBMColor: bm_color];
2524       }
2525
2526 #ifdef NS_IMPL_COCOA
2527       [img drawInRect: r
2528               fromRect: NSZeroRect
2529              operation: NSCompositeSourceOver
2530               fraction: 1.0
2531            respectFlipped: YES
2532                 hints: nil];
2533 #else
2534       {
2535         NSPoint pt = r.origin;
2536         pt.y += p->h;
2537         [img compositeToPoint: pt operation: NSCompositeSourceOver];
2538       }
2539 #endif
2540     }
2541   ns_unfocus (f);
2542 }
2543
2544
2545 static void
2546 ns_draw_window_cursor (struct window *w, struct glyph_row *glyph_row,
2547                        int x, int y, enum text_cursor_kinds cursor_type,
2548                        int cursor_width, bool on_p, bool active_p)
2549 /* --------------------------------------------------------------------------
2550      External call (RIF): draw cursor.
2551      Note that CURSOR_WIDTH is meaningful only for (h)bar cursors.
2552    -------------------------------------------------------------------------- */
2553 {
2554   NSRect r, s;
2555   int fx, fy, h, cursor_height;
2556   struct frame *f = WINDOW_XFRAME (w);
2557   struct glyph *phys_cursor_glyph;
2558   struct glyph *cursor_glyph;
2559   struct face *face;
2560   NSColor *hollow_color = FRAME_BACKGROUND_COLOR (f);
2561
2562   /* If cursor is out of bounds, don't draw garbage.  This can happen
2563      in mini-buffer windows when switching between echo area glyphs
2564      and mini-buffer.  */
2565
2566   NSTRACE ("dumpcursor");
2567
2568   if (!on_p)
2569     return;
2570
2571   w->phys_cursor_type = cursor_type;
2572   w->phys_cursor_on_p = on_p;
2573
2574   if (cursor_type == NO_CURSOR)
2575     {
2576       w->phys_cursor_width = 0;
2577       return;
2578     }
2579
2580   if ((phys_cursor_glyph = get_phys_cursor_glyph (w)) == NULL)
2581     {
2582       if (glyph_row->exact_window_width_line_p
2583           && w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])
2584         {
2585           glyph_row->cursor_in_fringe_p = 1;
2586           draw_fringe_bitmap (w, glyph_row, 0);
2587         }
2588       return;
2589     }
2590
2591   /* We draw the cursor (with NSRectFill), then draw the glyph on top
2592      (other terminals do it the other way round).  We must set
2593      w->phys_cursor_width to the cursor width.  For bar cursors, that
2594      is CURSOR_WIDTH; for box cursors, it is the glyph width.  */
2595   get_phys_cursor_geometry (w, glyph_row, phys_cursor_glyph, &fx, &fy, &h);
2596
2597   /* The above get_phys_cursor_geometry call set w->phys_cursor_width
2598      to the glyph width; replace with CURSOR_WIDTH for (V)BAR cursors. */
2599   if (cursor_type == BAR_CURSOR)
2600     {
2601       if (cursor_width < 1)
2602         cursor_width = max (FRAME_CURSOR_WIDTH (f), 1);
2603       w->phys_cursor_width = cursor_width;
2604     }
2605   /* If we have an HBAR, "cursor_width" MAY specify height. */
2606   else if (cursor_type == HBAR_CURSOR)
2607     {
2608       cursor_height = (cursor_width < 1) ? lrint (0.25 * h) : cursor_width;
2609       if (cursor_height > glyph_row->height)
2610         cursor_height = glyph_row->height;
2611       if (h > cursor_height) // Cursor smaller than line height, move down
2612         fy += h - cursor_height;
2613       h = cursor_height;
2614     }
2615
2616   r.origin.x = fx, r.origin.y = fy;
2617   r.size.height = h;
2618   r.size.width = w->phys_cursor_width;
2619
2620   /* TODO: only needed in rare cases with last-resort font in HELLO..
2621      should we do this more efficiently? */
2622   ns_clip_to_row (w, glyph_row, ANY_AREA, NO); /* do ns_focus(f, &r, 1); if remove */
2623
2624
2625   face = FACE_FROM_ID (f, phys_cursor_glyph->face_id);
2626   if (face && NS_FACE_BACKGROUND (face)
2627       == ns_index_color (FRAME_CURSOR_COLOR (f), f))
2628     {
2629       [ns_lookup_indexed_color (NS_FACE_FOREGROUND (face), f) set];
2630       hollow_color = FRAME_CURSOR_COLOR (f);
2631     }
2632   else
2633     [FRAME_CURSOR_COLOR (f) set];
2634
2635 #ifdef NS_IMPL_COCOA
2636   /* TODO: This makes drawing of cursor plus that of phys_cursor_glyph
2637            atomic.  Cleaner ways of doing this should be investigated.
2638            One way would be to set a global variable DRAWING_CURSOR
2639            when making the call to draw_phys..(), don't focus in that
2640            case, then move the ns_unfocus() here after that call. */
2641   NSDisableScreenUpdates ();
2642 #endif
2643
2644   switch (cursor_type)
2645     {
2646     case DEFAULT_CURSOR:
2647     case NO_CURSOR:
2648       break;
2649     case FILLED_BOX_CURSOR:
2650       NSRectFill (r);
2651       break;
2652     case HOLLOW_BOX_CURSOR:
2653       NSRectFill (r);
2654       [hollow_color set];
2655       NSRectFill (NSInsetRect (r, 1, 1));
2656       [FRAME_CURSOR_COLOR (f) set];
2657       break;
2658     case HBAR_CURSOR:
2659       NSRectFill (r);
2660       break;
2661     case BAR_CURSOR:
2662       s = r;
2663       /* If the character under cursor is R2L, draw the bar cursor
2664          on the right of its glyph, rather than on the left.  */
2665       cursor_glyph = get_phys_cursor_glyph (w);
2666       if ((cursor_glyph->resolved_level & 1) != 0)
2667         s.origin.x += cursor_glyph->pixel_width - s.size.width;
2668
2669       NSRectFill (s);
2670       break;
2671     }
2672   ns_unfocus (f);
2673
2674   /* draw the character under the cursor */
2675   if (cursor_type != NO_CURSOR)
2676     draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
2677
2678 #ifdef NS_IMPL_COCOA
2679   NSEnableScreenUpdates ();
2680 #endif
2681
2682 }
2683
2684
2685 static void
2686 ns_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
2687 /* --------------------------------------------------------------------------
2688      External (RIF): Draw a vertical line.
2689    -------------------------------------------------------------------------- */
2690 {
2691   struct frame *f = XFRAME (WINDOW_FRAME (w));
2692   struct face *face;
2693   NSRect r = NSMakeRect (x, y0, 1, y1-y0);
2694
2695   NSTRACE ("ns_draw_vertical_window_border");
2696
2697   face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
2698   if (face)
2699       [ns_lookup_indexed_color(face->foreground, f) set];
2700
2701   ns_focus (f, &r, 1);
2702   NSRectFill(r);
2703   ns_unfocus (f);
2704 }
2705
2706
2707 static void
2708 ns_draw_window_divider (struct window *w, int x0, int x1, int y0, int y1)
2709 /* --------------------------------------------------------------------------
2710      External (RIF): Draw a window divider.
2711    -------------------------------------------------------------------------- */
2712 {
2713   struct frame *f = XFRAME (WINDOW_FRAME (w));
2714   struct face *face;
2715   NSRect r = NSMakeRect (x0, y0, x1-x0, y1-y0);
2716
2717   NSTRACE ("ns_draw_window_divider");
2718
2719   face = FACE_FROM_ID (f, WINDOW_DIVIDER_FACE_ID);
2720   if (face)
2721       [ns_lookup_indexed_color(face->foreground, f) set];
2722
2723   ns_focus (f, &r, 1);
2724   NSRectFill(r);
2725   ns_unfocus (f);
2726 }
2727
2728 static void
2729 ns_show_hourglass (struct frame *f)
2730 {
2731   /* TODO: add NSProgressIndicator to all frames.  */
2732 }
2733
2734 static void
2735 ns_hide_hourglass (struct frame *f)
2736 {
2737   /* TODO: remove NSProgressIndicator from all frames.  */
2738 }
2739
2740 /* ==========================================================================
2741
2742     Glyph drawing operations
2743
2744    ========================================================================== */
2745
2746 static int
2747 ns_get_glyph_string_clip_rect (struct glyph_string *s, NativeRectangle *nr)
2748 /* --------------------------------------------------------------------------
2749     Wrapper utility to account for internal border width on full-width lines,
2750     and allow top full-width rows to hit the frame top.  nr should be pointer
2751     to two successive NSRects.  Number of rects actually used is returned.
2752    -------------------------------------------------------------------------- */
2753 {
2754   int n = get_glyph_string_clip_rects (s, nr, 2);
2755   return n;
2756 }
2757
2758 /* --------------------------------------------------------------------
2759    Draw a wavy line under glyph string s. The wave fills wave_height
2760    pixels from y.
2761
2762                     x          wave_length = 2
2763                                  --
2764                 y    *   *   *   *   *
2765                      |* * * * * * * * *
2766     wave_height = 3  | *   *   *   *
2767   --------------------------------------------------------------------- */
2768
2769 static void
2770 ns_draw_underwave (struct glyph_string *s, EmacsCGFloat width, EmacsCGFloat x)
2771 {
2772   int wave_height = 3, wave_length = 2;
2773   int y, dx, dy, odd, xmax;
2774   NSPoint a, b;
2775   NSRect waveClip;
2776
2777   dx = wave_length;
2778   dy = wave_height - 1;
2779   y =  s->ybase - wave_height + 3;
2780   xmax = x + width;
2781
2782   /* Find and set clipping rectangle */
2783   waveClip = NSMakeRect (x, y, width, wave_height);
2784   [[NSGraphicsContext currentContext] saveGraphicsState];
2785   NSRectClip (waveClip);
2786
2787   /* Draw the waves */
2788   a.x = x - ((int)(x) % dx) + (EmacsCGFloat) 0.5;
2789   b.x = a.x + dx;
2790   odd = (int)(a.x/dx) % 2;
2791   a.y = b.y = y + 0.5;
2792
2793   if (odd)
2794     a.y += dy;
2795   else
2796     b.y += dy;
2797
2798   while (a.x <= xmax)
2799     {
2800       [NSBezierPath strokeLineFromPoint:a toPoint:b];
2801       a.x = b.x, a.y = b.y;
2802       b.x += dx, b.y = y + 0.5 + odd*dy;
2803       odd = !odd;
2804     }
2805
2806   /* Restore previous clipping rectangle(s) */
2807   [[NSGraphicsContext currentContext] restoreGraphicsState];
2808 }
2809
2810
2811
2812 void
2813 ns_draw_text_decoration (struct glyph_string *s, struct face *face,
2814                          NSColor *defaultCol, CGFloat width, CGFloat x)
2815 /* --------------------------------------------------------------------------
2816    Draw underline, overline, and strike-through on glyph string s.
2817    -------------------------------------------------------------------------- */
2818 {
2819   if (s->for_overlaps)
2820     return;
2821
2822   /* Do underline. */
2823   if (face->underline_p)
2824     {
2825       if (s->face->underline_type == FACE_UNDER_WAVE)
2826         {
2827           if (face->underline_defaulted_p)
2828             [defaultCol set];
2829           else
2830             [ns_lookup_indexed_color (face->underline_color, s->f) set];
2831
2832           ns_draw_underwave (s, width, x);
2833         }
2834       else if (s->face->underline_type == FACE_UNDER_LINE)
2835         {
2836
2837           NSRect r;
2838           unsigned long thickness, position;
2839
2840           /* If the prev was underlined, match its appearance. */
2841           if (s->prev && s->prev->face->underline_p
2842               && s->prev->face->underline_type == FACE_UNDER_LINE
2843               && s->prev->underline_thickness > 0)
2844             {
2845               thickness = s->prev->underline_thickness;
2846               position = s->prev->underline_position;
2847             }
2848           else
2849             {
2850               struct font *font;
2851               unsigned long descent;
2852
2853               font=s->font;
2854               descent = s->y + s->height - s->ybase;
2855
2856               /* Use underline thickness of font, defaulting to 1. */
2857               thickness = (font && font->underline_thickness > 0)
2858                 ? font->underline_thickness : 1;
2859
2860               /* Determine the offset of underlining from the baseline. */
2861               if (x_underline_at_descent_line)
2862                 position = descent - thickness;
2863               else if (x_use_underline_position_properties
2864                        && font && font->underline_position >= 0)
2865                 position = font->underline_position;
2866               else if (font)
2867                 position = lround (font->descent / 2);
2868               else
2869                 position = underline_minimum_offset;
2870
2871               position = max (position, underline_minimum_offset);
2872
2873               /* Ensure underlining is not cropped. */
2874               if (descent <= position)
2875                 {
2876                   position = descent - 1;
2877                   thickness = 1;
2878                 }
2879               else if (descent < position + thickness)
2880                 thickness = 1;
2881             }
2882
2883           s->underline_thickness = thickness;
2884           s->underline_position = position;
2885
2886           r = NSMakeRect (x, s->ybase + position, width, thickness);
2887
2888           if (face->underline_defaulted_p)
2889             [defaultCol set];
2890           else
2891             [ns_lookup_indexed_color (face->underline_color, s->f) set];
2892           NSRectFill (r);
2893         }
2894     }
2895   /* Do overline. We follow other terms in using a thickness of 1
2896      and ignoring overline_margin. */
2897   if (face->overline_p)
2898     {
2899       NSRect r;
2900       r = NSMakeRect (x, s->y, width, 1);
2901
2902       if (face->overline_color_defaulted_p)
2903         [defaultCol set];
2904       else
2905         [ns_lookup_indexed_color (face->overline_color, s->f) set];
2906       NSRectFill (r);
2907     }
2908
2909   /* Do strike-through.  We follow other terms for thickness and
2910      vertical position.*/
2911   if (face->strike_through_p)
2912     {
2913       NSRect r;
2914       unsigned long dy;
2915
2916       dy = lrint ((s->height - 1) / 2);
2917       r = NSMakeRect (x, s->y + dy, width, 1);
2918
2919       if (face->strike_through_color_defaulted_p)
2920         [defaultCol set];
2921       else
2922         [ns_lookup_indexed_color (face->strike_through_color, s->f) set];
2923       NSRectFill (r);
2924     }
2925 }
2926
2927 static void
2928 ns_draw_box (NSRect r, CGFloat thickness, NSColor *col,
2929              char left_p, char right_p)
2930 /* --------------------------------------------------------------------------
2931     Draw an unfilled rect inside r, optionally leaving left and/or right open.
2932     Note we can't just use an NSDrawRect command, because of the possibility
2933     of some sides not being drawn, and because the rect will be filled.
2934    -------------------------------------------------------------------------- */
2935 {
2936   NSRect s = r;
2937   [col set];
2938
2939   /* top, bottom */
2940   s.size.height = thickness;
2941   NSRectFill (s);
2942   s.origin.y += r.size.height - thickness;
2943   NSRectFill (s);
2944
2945   s.size.height = r.size.height;
2946   s.origin.y = r.origin.y;
2947
2948   /* left, right (optional) */
2949   s.size.width = thickness;
2950   if (left_p)
2951     NSRectFill (s);
2952   if (right_p)
2953     {
2954       s.origin.x += r.size.width - thickness;
2955       NSRectFill (s);
2956     }
2957 }
2958
2959
2960 static void
2961 ns_draw_relief (NSRect r, int thickness, char raised_p,
2962                char top_p, char bottom_p, char left_p, char right_p,
2963                struct glyph_string *s)
2964 /* --------------------------------------------------------------------------
2965     Draw a relief rect inside r, optionally leaving some sides open.
2966     Note we can't just use an NSDrawBezel command, because of the possibility
2967     of some sides not being drawn, and because the rect will be filled.
2968    -------------------------------------------------------------------------- */
2969 {
2970   static NSColor *baseCol = nil, *lightCol = nil, *darkCol = nil;
2971   NSColor *newBaseCol = nil;
2972   NSRect sr = r;
2973
2974   NSTRACE ("ns_draw_relief");
2975
2976   /* set up colors */
2977
2978   if (s->face->use_box_color_for_shadows_p)
2979     {
2980       newBaseCol = ns_lookup_indexed_color (s->face->box_color, s->f);
2981     }
2982 /*     else if (s->first_glyph->type == IMAGE_GLYPH
2983            && s->img->pixmap
2984            && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
2985        {
2986          newBaseCol = IMAGE_BACKGROUND  (s->img, s->f, 0);
2987        } */
2988   else
2989     {
2990       newBaseCol = ns_lookup_indexed_color (s->face->background, s->f);
2991     }
2992
2993   if (newBaseCol == nil)
2994     newBaseCol = [NSColor grayColor];
2995
2996   if (newBaseCol != baseCol)  /* TODO: better check */
2997     {
2998       [baseCol release];
2999       baseCol = [newBaseCol retain];
3000       [lightCol release];
3001       lightCol = [[baseCol highlightWithLevel: 0.2] retain];
3002       [darkCol release];
3003       darkCol = [[baseCol shadowWithLevel: 0.3] retain];
3004     }
3005
3006   [(raised_p ? lightCol : darkCol) set];
3007
3008   /* TODO: mitering. Using NSBezierPath doesn't work because of color switch. */
3009
3010   /* top */
3011   sr.size.height = thickness;
3012   if (top_p) NSRectFill (sr);
3013
3014   /* left */
3015   sr.size.height = r.size.height;
3016   sr.size.width = thickness;
3017   if (left_p) NSRectFill (sr);
3018
3019   [(raised_p ? darkCol : lightCol) set];
3020
3021   /* bottom */
3022   sr.size.width = r.size.width;
3023   sr.size.height = thickness;
3024   sr.origin.y += r.size.height - thickness;
3025   if (bottom_p) NSRectFill (sr);
3026
3027   /* right */
3028   sr.size.height = r.size.height;
3029   sr.origin.y = r.origin.y;
3030   sr.size.width = thickness;
3031   sr.origin.x += r.size.width - thickness;
3032   if (right_p) NSRectFill (sr);
3033 }
3034
3035
3036 static void
3037 ns_dumpglyphs_box_or_relief (struct glyph_string *s)
3038 /* --------------------------------------------------------------------------
3039       Function modeled after x_draw_glyph_string_box ().
3040       Sets up parameters for drawing.
3041    -------------------------------------------------------------------------- */
3042 {
3043   int right_x, last_x;
3044   char left_p, right_p;
3045   struct glyph *last_glyph;
3046   NSRect r;
3047   int thickness;
3048   struct face *face;
3049
3050   if (s->hl == DRAW_MOUSE_FACE)
3051     {
3052       face = FACE_FROM_ID (s->f, MOUSE_HL_INFO (s->f)->mouse_face_face_id);
3053       if (!face)
3054         face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
3055     }
3056   else
3057     face = s->face;
3058
3059   thickness = face->box_line_width;
3060
3061   NSTRACE ("ns_dumpglyphs_box_or_relief");
3062
3063   last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
3064             ? WINDOW_RIGHT_EDGE_X (s->w)
3065             : window_box_right (s->w, s->area));
3066   last_glyph = (s->cmp || s->img
3067                 ? s->first_glyph : s->first_glyph + s->nchars-1);
3068
3069   right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
3070               ? last_x - 1 : min (last_x, s->x + s->background_width) - 1));
3071
3072   left_p = (s->first_glyph->left_box_line_p
3073             || (s->hl == DRAW_MOUSE_FACE
3074                 && (s->prev == NULL || s->prev->hl != s->hl)));
3075   right_p = (last_glyph->right_box_line_p
3076              || (s->hl == DRAW_MOUSE_FACE
3077                  && (s->next == NULL || s->next->hl != s->hl)));
3078
3079   r = NSMakeRect (s->x, s->y, right_x - s->x + 1, s->height);
3080
3081   /* TODO: Sometimes box_color is 0 and this seems wrong; should investigate. */
3082   if (s->face->box == FACE_SIMPLE_BOX && s->face->box_color)
3083     {
3084       ns_draw_box (r, abs (thickness),
3085                    ns_lookup_indexed_color (face->box_color, s->f),
3086                   left_p, right_p);
3087     }
3088   else
3089     {
3090       ns_draw_relief (r, abs (thickness), s->face->box == FACE_RAISED_BOX,
3091                      1, 1, left_p, right_p, s);
3092     }
3093 }
3094
3095
3096 static void
3097 ns_maybe_dumpglyphs_background (struct glyph_string *s, char force_p)
3098 /* --------------------------------------------------------------------------
3099       Modeled after x_draw_glyph_string_background, which draws BG in
3100       certain cases.  Others are left to the text rendering routine.
3101    -------------------------------------------------------------------------- */
3102 {
3103   NSTRACE ("ns_maybe_dumpglyphs_background");
3104
3105   if (!s->background_filled_p/* || s->hl == DRAW_MOUSE_FACE*/)
3106     {
3107       int box_line_width = max (s->face->box_line_width, 0);
3108       if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
3109           /* When xdisp.c ignores FONT_HEIGHT, we cannot trust font
3110              dimensions, since the actual glyphs might be much
3111              smaller.  So in that case we always clear the rectangle
3112              with background color.  */
3113           || FONT_TOO_HIGH (s->font)
3114           || s->font_not_found_p || s->extends_to_end_of_line_p || force_p)
3115         {
3116           struct face *face;
3117           if (s->hl == DRAW_MOUSE_FACE)
3118             {
3119               face = FACE_FROM_ID (s->f,
3120                                    MOUSE_HL_INFO (s->f)->mouse_face_face_id);
3121               if (!face)
3122                 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
3123             }
3124           else
3125             face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
3126           if (!face->stipple)
3127             [(NS_FACE_BACKGROUND (face) != 0
3128               ? ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f)
3129               : FRAME_BACKGROUND_COLOR (s->f)) set];
3130           else
3131             {
3132               struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (s->f);
3133               [[dpyinfo->bitmaps[face->stipple-1].img stippleMask] set];
3134             }
3135
3136           if (s->hl != DRAW_CURSOR)
3137             {
3138               NSRect r = NSMakeRect (s->x, s->y + box_line_width,
3139                                     s->background_width,
3140                                     s->height-2*box_line_width);
3141               NSRectFill (r);
3142             }
3143
3144           s->background_filled_p = 1;
3145         }
3146     }
3147 }
3148
3149
3150 static void
3151 ns_dumpglyphs_image (struct glyph_string *s, NSRect r)
3152 /* --------------------------------------------------------------------------
3153       Renders an image and associated borders.
3154    -------------------------------------------------------------------------- */
3155 {
3156   EmacsImage *img = s->img->pixmap;
3157   int box_line_vwidth = max (s->face->box_line_width, 0);
3158   int x = s->x, y = s->ybase - image_ascent (s->img, s->face, &s->slice);
3159   int bg_x, bg_y, bg_height;
3160   int th;
3161   char raised_p;
3162   NSRect br;
3163   struct face *face;
3164   NSColor *tdCol;
3165
3166   NSTRACE ("ns_dumpglyphs_image");
3167
3168   if (s->face->box != FACE_NO_BOX
3169       && s->first_glyph->left_box_line_p && s->slice.x == 0)
3170     x += abs (s->face->box_line_width);
3171
3172   bg_x = x;
3173   bg_y =  s->slice.y == 0 ? s->y : s->y + box_line_vwidth;
3174   bg_height = s->height;
3175   /* other terms have this, but was causing problems w/tabbar mode */
3176   /* - 2 * box_line_vwidth; */
3177
3178   if (s->slice.x == 0) x += s->img->hmargin;
3179   if (s->slice.y == 0) y += s->img->vmargin;
3180
3181   /* Draw BG: if we need larger area than image itself cleared, do that,
3182      otherwise, since we composite the image under NS (instead of mucking
3183      with its background color), we must clear just the image area. */
3184   if (s->hl == DRAW_MOUSE_FACE)
3185     {
3186       face = FACE_FROM_ID (s->f, MOUSE_HL_INFO (s->f)->mouse_face_face_id);
3187       if (!face)
3188        face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
3189     }
3190   else
3191     face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
3192
3193   [ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) set];
3194
3195   if (bg_height > s->slice.height || s->img->hmargin || s->img->vmargin
3196       || s->img->mask || s->img->pixmap == 0 || s->width != s->background_width)
3197     {
3198       br = NSMakeRect (bg_x, bg_y, s->background_width, bg_height);
3199       s->background_filled_p = 1;
3200     }
3201   else
3202     {
3203       br = NSMakeRect (x, y, s->slice.width, s->slice.height);
3204     }
3205
3206   NSRectFill (br);
3207
3208   /* Draw the image.. do we need to draw placeholder if img ==nil? */
3209   if (img != nil)
3210     {
3211 #ifdef NS_IMPL_COCOA
3212       NSRect dr = NSMakeRect (x, y, s->slice.width, s->slice.height);
3213       NSRect ir = NSMakeRect (s->slice.x, s->slice.y,
3214                               s->slice.width, s->slice.height);
3215       [img drawInRect: dr
3216              fromRect: ir
3217              operation: NSCompositeSourceOver
3218               fraction: 1.0
3219            respectFlipped: YES
3220                 hints: nil];
3221 #else
3222       [img compositeToPoint: NSMakePoint (x, y + s->slice.height)
3223                   operation: NSCompositeSourceOver];
3224 #endif
3225     }
3226
3227   if (s->hl == DRAW_CURSOR)
3228     {
3229     [FRAME_CURSOR_COLOR (s->f) set];
3230     if (s->w->phys_cursor_type == FILLED_BOX_CURSOR)
3231       tdCol = ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f);
3232     else
3233       /* Currently on NS img->mask is always 0. Since
3234          get_window_cursor_type specifies a hollow box cursor when on
3235          a non-masked image we never reach this clause. But we put it
3236          in in anticipation of better support for image masks on
3237          NS. */
3238       tdCol = ns_lookup_indexed_color (NS_FACE_FOREGROUND (face), s->f);
3239     }
3240   else
3241     {
3242       tdCol = ns_lookup_indexed_color (NS_FACE_FOREGROUND (face), s->f);
3243     }
3244
3245   /* Draw underline, overline, strike-through. */
3246   ns_draw_text_decoration (s, face, tdCol, br.size.width, br.origin.x);
3247
3248   /* Draw relief, if requested */
3249   if (s->img->relief || s->hl ==DRAW_IMAGE_RAISED || s->hl ==DRAW_IMAGE_SUNKEN)
3250     {
3251       if (s->hl == DRAW_IMAGE_SUNKEN || s->hl == DRAW_IMAGE_RAISED)
3252         {
3253           th = tool_bar_button_relief >= 0 ?
3254             tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
3255           raised_p = (s->hl == DRAW_IMAGE_RAISED);
3256         }
3257       else
3258         {
3259           th = abs (s->img->relief);
3260           raised_p = (s->img->relief > 0);
3261         }
3262
3263       r.origin.x = x - th;
3264       r.origin.y = y - th;
3265       r.size.width = s->slice.width + 2*th-1;
3266       r.size.height = s->slice.height + 2*th-1;
3267       ns_draw_relief (r, th, raised_p,
3268                       s->slice.y == 0,
3269                       s->slice.y + s->slice.height == s->img->height,
3270                       s->slice.x == 0,
3271                       s->slice.x + s->slice.width == s->img->width, s);
3272     }
3273
3274   /* If there is no mask, the background won't be seen,
3275      so draw a rectangle on the image for the cursor.
3276      Do this for all images, getting transparency right is not reliable.  */
3277   if (s->hl == DRAW_CURSOR)
3278     {
3279       int thickness = abs (s->img->relief);
3280       if (thickness == 0) thickness = 1;
3281       ns_draw_box (br, thickness, FRAME_CURSOR_COLOR (s->f), 1, 1);
3282     }
3283 }
3284
3285
3286 static void
3287 ns_dumpglyphs_stretch (struct glyph_string *s)
3288 {
3289   NSRect r[2];
3290   int n, i;
3291   struct face *face;
3292   NSColor *fgCol, *bgCol;
3293
3294   if (!s->background_filled_p)
3295     {
3296       n = ns_get_glyph_string_clip_rect (s, r);
3297       *r = NSMakeRect (s->x, s->y, s->background_width, s->height);
3298
3299       ns_focus (s->f, r, n);
3300
3301       if (s->hl == DRAW_MOUSE_FACE)
3302        {
3303          face = FACE_FROM_ID (s->f, MOUSE_HL_INFO (s->f)->mouse_face_face_id);
3304          if (!face)
3305            face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
3306        }
3307       else
3308        face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
3309
3310       bgCol = ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f);
3311       fgCol = ns_lookup_indexed_color (NS_FACE_FOREGROUND (face), s->f);
3312
3313       for (i = 0; i < n; ++i)
3314         {
3315           if (!s->row->full_width_p)
3316             {
3317               int overrun, leftoverrun;
3318
3319               /* truncate to avoid overwriting fringe and/or scrollbar */
3320               overrun = max (0, (s->x + s->background_width)
3321                              - (WINDOW_BOX_RIGHT_EDGE_X (s->w)
3322                                 - WINDOW_RIGHT_FRINGE_WIDTH (s->w)));
3323               r[i].size.width -= overrun;
3324
3325               /* truncate to avoid overwriting to left of the window box */
3326               leftoverrun = (WINDOW_BOX_LEFT_EDGE_X (s->w)
3327                              + WINDOW_LEFT_FRINGE_WIDTH (s->w)) - s->x;
3328
3329               if (leftoverrun > 0)
3330                 {
3331                   r[i].origin.x += leftoverrun;
3332                   r[i].size.width -= leftoverrun;
3333                 }
3334
3335               /* XXX: Try to work between problem where a stretch glyph on
3336                  a partially-visible bottom row will clear part of the
3337                  modeline, and another where list-buffers headers and similar
3338                  rows erroneously have visible_height set to 0.  Not sure
3339                  where this is coming from as other terms seem not to show. */
3340               r[i].size.height = min (s->height, s->row->visible_height);
3341             }
3342
3343           [bgCol set];
3344
3345           /* NOTE: under NS this is NOT used to draw cursors, but we must avoid
3346              overwriting cursor (usually when cursor on a tab) */
3347           if (s->hl == DRAW_CURSOR)
3348             {
3349               CGFloat x, width;
3350
3351               x = r[i].origin.x;
3352               width = s->w->phys_cursor_width;
3353               r[i].size.width -= width;
3354               r[i].origin.x += width;
3355
3356               NSRectFill (r[i]);
3357
3358               /* Draw overlining, etc. on the cursor. */
3359               if (s->w->phys_cursor_type == FILLED_BOX_CURSOR)
3360                 ns_draw_text_decoration (s, face, bgCol, width, x);
3361               else
3362                 ns_draw_text_decoration (s, face, fgCol, width, x);
3363             }
3364           else
3365             {
3366               NSRectFill (r[i]);
3367             }
3368
3369           /* Draw overlining, etc. on the stretch glyph (or the part
3370              of the stretch glyph after the cursor). */
3371           ns_draw_text_decoration (s, face, fgCol, r[i].size.width,
3372                                    r[i].origin.x);
3373         }
3374       ns_unfocus (s->f);
3375       s->background_filled_p = 1;
3376     }
3377 }
3378
3379
3380 static void
3381 ns_draw_composite_glyph_string_foreground (struct glyph_string *s)
3382 {
3383   int i, j, x;
3384   struct font *font = s->font;
3385
3386   /* If first glyph of S has a left box line, start drawing the text
3387      of S to the right of that box line.  */
3388   if (s->face && s->face->box != FACE_NO_BOX
3389       && s->first_glyph->left_box_line_p)
3390     x = s->x + eabs (s->face->box_line_width);
3391   else
3392     x = s->x;
3393
3394   /* S is a glyph string for a composition.  S->cmp_from is the index
3395      of the first character drawn for glyphs of this composition.
3396      S->cmp_from == 0 means we are drawing the very first character of
3397      this composition.  */
3398
3399   /* Draw a rectangle for the composition if the font for the very
3400      first character of the composition could not be loaded.  */
3401   if (s->font_not_found_p)
3402     {
3403       if (s->cmp_from == 0)
3404         {
3405           NSRect r = NSMakeRect (s->x, s->y, s->width-1, s->height -1);
3406           ns_draw_box (r, 1, FRAME_CURSOR_COLOR (s->f), 1, 1);
3407         }
3408     }
3409   else if (! s->first_glyph->u.cmp.automatic)
3410     {
3411       int y = s->ybase;
3412
3413       for (i = 0, j = s->cmp_from; i < s->nchars; i++, j++)
3414         /* TAB in a composition means display glyphs with padding
3415            space on the left or right.  */
3416         if (COMPOSITION_GLYPH (s->cmp, j) != '\t')
3417           {
3418             int xx = x + s->cmp->offsets[j * 2];
3419             int yy = y - s->cmp->offsets[j * 2 + 1];
3420
3421             font->driver->draw (s, j, j + 1, xx, yy, false);
3422             if (s->face->overstrike)
3423               font->driver->draw (s, j, j + 1, xx + 1, yy, false);
3424           }
3425     }
3426   else
3427     {
3428       Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
3429       Lisp_Object glyph;
3430       int y = s->ybase;
3431       int width = 0;
3432
3433       for (i = j = s->cmp_from; i < s->cmp_to; i++)
3434         {
3435           glyph = LGSTRING_GLYPH (gstring, i);
3436           if (NILP (LGLYPH_ADJUSTMENT (glyph)))
3437             width += LGLYPH_WIDTH (glyph);
3438           else
3439             {
3440               int xoff, yoff, wadjust;
3441
3442               if (j < i)
3443                 {
3444                   font->driver->draw (s, j, i, x, y, false);
3445                   if (s->face->overstrike)
3446                     font->driver->draw (s, j, i, x + 1, y, false);
3447                   x += width;
3448                 }
3449               xoff = LGLYPH_XOFF (glyph);
3450               yoff = LGLYPH_YOFF (glyph);
3451               wadjust = LGLYPH_WADJUST (glyph);
3452               font->driver->draw (s, i, i + 1, x + xoff, y + yoff, false);
3453               if (s->face->overstrike)
3454                 font->driver->draw (s, i, i + 1, x + xoff + 1, y + yoff,
3455                                     false);
3456               x += wadjust;
3457               j = i + 1;
3458               width = 0;
3459             }
3460         }
3461       if (j < i)
3462         {
3463           font->driver->draw (s, j, i, x, y, false);
3464           if (s->face->overstrike)
3465             font->driver->draw (s, j, i, x + 1, y, false);
3466         }
3467     }
3468 }
3469
3470 static void
3471 ns_draw_glyph_string (struct glyph_string *s)
3472 /* --------------------------------------------------------------------------
3473       External (RIF): Main draw-text call.
3474    -------------------------------------------------------------------------- */
3475 {
3476   /* TODO (optimize): focus for box and contents draw */
3477   NSRect r[2];
3478   int n, flags;
3479   char box_drawn_p = 0;
3480   struct font *font = s->face->font;
3481   if (! font) font = FRAME_FONT (s->f);
3482
3483   NSTRACE ("ns_draw_glyph_string");
3484
3485   if (s->next && s->right_overhang && !s->for_overlaps/*&&s->hl!=DRAW_CURSOR*/)
3486     {
3487       int width;
3488       struct glyph_string *next;
3489
3490       for (width = 0, next = s->next;
3491            next && width < s->right_overhang;
3492            width += next->width, next = next->next)
3493         if (next->first_glyph->type != IMAGE_GLYPH)
3494           {
3495             if (next->first_glyph->type != STRETCH_GLYPH)
3496               {
3497                 n = ns_get_glyph_string_clip_rect (s->next, r);
3498                 ns_focus (s->f, r, n);
3499                 ns_maybe_dumpglyphs_background (s->next, 1);
3500                 ns_unfocus (s->f);
3501               }
3502             else
3503               {
3504                 ns_dumpglyphs_stretch (s->next);
3505               }
3506             next->num_clips = 0;
3507           }
3508     }
3509
3510   if (!s->for_overlaps && s->face->box != FACE_NO_BOX
3511         && (s->first_glyph->type == CHAR_GLYPH
3512             || s->first_glyph->type == COMPOSITE_GLYPH))
3513     {
3514       n = ns_get_glyph_string_clip_rect (s, r);
3515       ns_focus (s->f, r, n);
3516       ns_maybe_dumpglyphs_background (s, 1);
3517       ns_dumpglyphs_box_or_relief (s);
3518       ns_unfocus (s->f);
3519       box_drawn_p = 1;
3520     }
3521
3522   switch (s->first_glyph->type)
3523     {
3524
3525     case IMAGE_GLYPH:
3526       n = ns_get_glyph_string_clip_rect (s, r);
3527       ns_focus (s->f, r, n);
3528       ns_dumpglyphs_image (s, r[0]);
3529       ns_unfocus (s->f);
3530       break;
3531
3532     case STRETCH_GLYPH:
3533       ns_dumpglyphs_stretch (s);
3534       break;
3535
3536     case CHAR_GLYPH:
3537     case COMPOSITE_GLYPH:
3538       n = ns_get_glyph_string_clip_rect (s, r);
3539       ns_focus (s->f, r, n);
3540
3541       if (s->for_overlaps || (s->cmp_from > 0
3542                               && ! s->first_glyph->u.cmp.automatic))
3543         s->background_filled_p = 1;
3544       else
3545         ns_maybe_dumpglyphs_background
3546           (s, s->first_glyph->type == COMPOSITE_GLYPH);
3547
3548       flags = s->hl == DRAW_CURSOR ? NS_DUMPGLYPH_CURSOR :
3549         (s->hl == DRAW_MOUSE_FACE ? NS_DUMPGLYPH_MOUSEFACE :
3550          (s->for_overlaps ? NS_DUMPGLYPH_FOREGROUND :
3551           NS_DUMPGLYPH_NORMAL));
3552
3553       if (s->hl == DRAW_CURSOR && s->w->phys_cursor_type == FILLED_BOX_CURSOR)
3554         {
3555           unsigned long tmp = NS_FACE_BACKGROUND (s->face);
3556           NS_FACE_BACKGROUND (s->face) = NS_FACE_FOREGROUND (s->face);
3557           NS_FACE_FOREGROUND (s->face) = tmp;
3558         }
3559
3560       {
3561         BOOL isComposite = s->first_glyph->type == COMPOSITE_GLYPH;
3562
3563         if (isComposite)
3564           ns_draw_composite_glyph_string_foreground (s);
3565         else
3566           font->driver->draw
3567             (s, s->cmp_from, s->nchars, s->x, s->ybase,
3568              (flags == NS_DUMPGLYPH_NORMAL && !s->background_filled_p)
3569              || flags == NS_DUMPGLYPH_MOUSEFACE);
3570       }
3571
3572       {
3573         NSColor *col = (NS_FACE_FOREGROUND (s->face) != 0
3574                         ? ns_lookup_indexed_color (NS_FACE_FOREGROUND (s->face),
3575                                                    s->f)
3576                         : FRAME_FOREGROUND_COLOR (s->f));
3577         [col set];
3578
3579         /* Draw underline, overline, strike-through. */
3580         ns_draw_text_decoration (s, s->face, col, s->width, s->x);
3581       }
3582
3583       if (s->hl == DRAW_CURSOR && s->w->phys_cursor_type == FILLED_BOX_CURSOR)
3584         {
3585           unsigned long tmp = NS_FACE_BACKGROUND (s->face);
3586           NS_FACE_BACKGROUND (s->face) = NS_FACE_FOREGROUND (s->face);
3587           NS_FACE_FOREGROUND (s->face) = tmp;
3588         }
3589
3590       ns_unfocus (s->f);
3591       break;
3592
3593     case GLYPHLESS_GLYPH:
3594       n = ns_get_glyph_string_clip_rect (s, r);
3595       ns_focus (s->f, r, n);
3596
3597       if (s->for_overlaps || (s->cmp_from > 0
3598                               && ! s->first_glyph->u.cmp.automatic))
3599         s->background_filled_p = 1;
3600       else
3601         ns_maybe_dumpglyphs_background
3602           (s, s->first_glyph->type == COMPOSITE_GLYPH);
3603       /* ... */
3604       /* Not yet implemented.  */
3605       /* ... */
3606       ns_unfocus (s->f);
3607       break;
3608
3609     default:
3610       emacs_abort ();
3611     }
3612
3613   /* Draw box if not done already. */
3614   if (!s->for_overlaps && !box_drawn_p && s->face->box != FACE_NO_BOX)
3615     {
3616       n = ns_get_glyph_string_clip_rect (s, r);
3617       ns_focus (s->f, r, n);
3618       ns_dumpglyphs_box_or_relief (s);
3619       ns_unfocus (s->f);
3620     }
3621
3622   s->num_clips = 0;
3623 }
3624
3625
3626
3627 /* ==========================================================================
3628
3629     Event loop
3630
3631    ========================================================================== */
3632
3633
3634 static void
3635 ns_send_appdefined (int value)
3636 /* --------------------------------------------------------------------------
3637     Internal: post an appdefined event which EmacsApp-sendEvent will
3638               recognize and take as a command to halt the event loop.
3639    -------------------------------------------------------------------------- */
3640 {
3641   NSTRACE ("ns_send_appdefined");
3642
3643 #ifdef NS_IMPL_GNUSTEP
3644   // GNUstep needs postEvent to happen on the main thread.
3645   if (! [[NSThread currentThread] isMainThread])
3646     {
3647       EmacsApp *app = (EmacsApp *)NSApp;
3648       app->nextappdefined = value;
3649       [app performSelectorOnMainThread:@selector (sendFromMainThread:)
3650                             withObject:nil
3651                          waitUntilDone:YES];
3652       return;
3653     }
3654 #endif
3655
3656   /* Only post this event if we haven't already posted one.  This will end
3657        the [NXApp run] main loop after having processed all events queued at
3658        this moment.  */
3659
3660 #ifdef NS_IMPL_COCOA
3661   if (! send_appdefined)
3662     {
3663       /* OSX 10.10.1 swallows the AppDefined event we are sending ourselves
3664          in certain situations (rapid incoming events).
3665          So check if we have one, if not add one.  */
3666       NSEvent *appev = [NSApp nextEventMatchingMask:NSApplicationDefinedMask
3667                                           untilDate:[NSDate distantPast]
3668                                              inMode:NSDefaultRunLoopMode
3669                                             dequeue:NO];
3670       if (! appev) send_appdefined = YES;
3671     }
3672 #endif
3673
3674   if (send_appdefined)
3675     {
3676       NSEvent *nxev;
3677
3678       /* We only need one NX_APPDEFINED event to stop NXApp from running.  */
3679       send_appdefined = NO;
3680
3681       /* Don't need wakeup timer any more */
3682       if (timed_entry)
3683         {
3684           [timed_entry invalidate];
3685           [timed_entry release];
3686           timed_entry = nil;
3687         }
3688
3689       nxev = [NSEvent otherEventWithType: NSApplicationDefined
3690                                 location: NSMakePoint (0, 0)
3691                            modifierFlags: 0
3692                                timestamp: 0
3693                             windowNumber: [[NSApp mainWindow] windowNumber]
3694                                  context: [NSApp context]
3695                                  subtype: 0
3696                                    data1: value
3697                                    data2: 0];
3698
3699       /* Post an application defined event on the event queue.  When this is
3700          received the [NXApp run] will return, thus having processed all
3701          events which are currently queued.  */
3702       [NSApp postEvent: nxev atStart: NO];
3703     }
3704 }
3705
3706 #ifdef HAVE_NATIVE_FS
3707 static void
3708 check_native_fs ()
3709 {
3710   Lisp_Object frame, tail;
3711
3712   if (ns_last_use_native_fullscreen == ns_use_native_fullscreen)
3713     return;
3714
3715   ns_last_use_native_fullscreen = ns_use_native_fullscreen;
3716
3717   FOR_EACH_FRAME (tail, frame)
3718     {
3719       struct frame *f = XFRAME (frame);
3720       if (FRAME_NS_P (f))
3721         {
3722           EmacsView *view = FRAME_NS_VIEW (f);
3723           [view updateCollectionBehavior];
3724         }
3725     }
3726 }
3727 #endif
3728
3729 /* GNUstep does not have cancelTracking.  */
3730 #ifdef NS_IMPL_COCOA
3731 /* Check if menu open should be canceled or continued as normal.  */
3732 void
3733 ns_check_menu_open (NSMenu *menu)
3734 {
3735   /* Click in menu bar? */
3736   NSArray *a = [[NSApp mainMenu] itemArray];
3737   int i;
3738   BOOL found = NO;
3739
3740   if (menu == nil) // Menu tracking ended.
3741     {
3742       if (menu_will_open_state == MENU_OPENING)
3743         menu_will_open_state = MENU_NONE;
3744       return;
3745     }
3746
3747   for (i = 0; ! found && i < [a count]; i++)
3748     found = menu == [[a objectAtIndex:i] submenu];
3749   if (found)
3750     {
3751       if (menu_will_open_state == MENU_NONE && emacs_event)
3752         {
3753           NSEvent *theEvent = [NSApp currentEvent];
3754           struct frame *emacsframe = SELECTED_FRAME ();
3755
3756           [menu cancelTracking];
3757           menu_will_open_state = MENU_PENDING;
3758           emacs_event->kind = MENU_BAR_ACTIVATE_EVENT;
3759           EV_TRAILER (theEvent);
3760
3761           CGEventRef ourEvent = CGEventCreate (NULL);
3762           menu_mouse_point = CGEventGetLocation (ourEvent);
3763           CFRelease (ourEvent);
3764         }
3765       else if (menu_will_open_state == MENU_OPENING)
3766         {
3767           menu_will_open_state = MENU_NONE;
3768         }
3769     }
3770 }
3771
3772 /* Redo saved menu click if state is MENU_PENDING.  */
3773 void
3774 ns_check_pending_open_menu ()
3775 {
3776   if (menu_will_open_state == MENU_PENDING)
3777     {
3778       CGEventSourceRef source
3779         = CGEventSourceCreate (kCGEventSourceStateHIDSystemState);
3780
3781       CGEventRef event = CGEventCreateMouseEvent (source,
3782                                                   kCGEventLeftMouseDown,
3783                                                   menu_mouse_point,
3784                                                   kCGMouseButtonLeft);
3785       CGEventSetType (event, kCGEventLeftMouseDown);
3786       CGEventPost (kCGHIDEventTap, event);
3787       CFRelease (event);
3788       CFRelease (source);
3789
3790       menu_will_open_state = MENU_OPENING;
3791     }
3792 }
3793 #endif /* NS_IMPL_COCOA */
3794
3795 static void
3796 unwind_apploopnr (Lisp_Object not_used)
3797 {
3798   --apploopnr;
3799   n_emacs_events_pending = 0;
3800   ns_finish_events ();
3801   q_event_ptr = NULL;
3802 }
3803
3804 static int
3805 ns_read_socket (struct terminal *terminal, struct input_event *hold_quit)
3806 /* --------------------------------------------------------------------------
3807      External (hook): Post an event to ourself and keep reading events until
3808      we read it back again.  In effect process all events which were waiting.
3809      From 21+ we have to manage the event buffer ourselves.
3810    -------------------------------------------------------------------------- */
3811 {
3812   struct input_event ev;
3813   int nevents;
3814
3815 /* NSTRACE ("ns_read_socket"); */
3816
3817 #ifdef HAVE_NATIVE_FS
3818   check_native_fs ();
3819 #endif
3820
3821   if ([NSApp modalWindow] != nil)
3822     return -1;
3823
3824   if (hold_event_q.nr > 0)
3825     {
3826       int i;
3827       for (i = 0; i < hold_event_q.nr; ++i)
3828         kbd_buffer_store_event_hold (&hold_event_q.q[i], hold_quit);
3829       hold_event_q.nr = 0;
3830       return i;
3831     }
3832
3833   block_input ();
3834   n_emacs_events_pending = 0;
3835   ns_init_events (&ev);
3836   q_event_ptr = hold_quit;
3837
3838   /* we manage autorelease pools by allocate/reallocate each time around
3839      the loop; strict nesting is occasionally violated but seems not to
3840      matter.. earlier methods using full nesting caused major memory leaks */
3841   [outerpool release];
3842   outerpool = [[NSAutoreleasePool alloc] init];
3843
3844   /* If have pending open-file requests, attend to the next one of those. */
3845   if (ns_pending_files && [ns_pending_files count] != 0
3846       && [(EmacsApp *)NSApp openFile: [ns_pending_files objectAtIndex: 0]])
3847     {
3848       [ns_pending_files removeObjectAtIndex: 0];
3849     }
3850   /* Deal with pending service requests. */
3851   else if (ns_pending_service_names && [ns_pending_service_names count] != 0
3852     && [(EmacsApp *)
3853          NSApp fulfillService: [ns_pending_service_names objectAtIndex: 0]
3854                       withArg: [ns_pending_service_args objectAtIndex: 0]])
3855     {
3856       [ns_pending_service_names removeObjectAtIndex: 0];
3857       [ns_pending_service_args removeObjectAtIndex: 0];
3858     }
3859   else
3860     {
3861       ptrdiff_t specpdl_count = SPECPDL_INDEX ();
3862       /* Run and wait for events.  We must always send one NX_APPDEFINED event
3863          to ourself, otherwise [NXApp run] will never exit.  */
3864       send_appdefined = YES;
3865       ns_send_appdefined (-1);
3866
3867       if (++apploopnr != 1)
3868         {
3869           emacs_abort ();
3870         }
3871       record_unwind_protect (unwind_apploopnr, Qt);
3872       [NSApp run];
3873       unbind_to (specpdl_count, Qnil);  /* calls unwind_apploopnr */
3874     }
3875
3876   nevents = n_emacs_events_pending;
3877   n_emacs_events_pending = 0;
3878   ns_finish_events ();
3879   q_event_ptr = NULL;
3880   unblock_input ();
3881
3882   return nevents;
3883 }
3884
3885
3886 int
3887 ns_select (int nfds, fd_set *readfds, fd_set *writefds,
3888            fd_set *exceptfds, struct timespec const *timeout,
3889            sigset_t const *sigmask)
3890 /* --------------------------------------------------------------------------
3891      Replacement for select, checking for events
3892    -------------------------------------------------------------------------- */
3893 {
3894   int result;
3895   int t, k, nr = 0;
3896   struct input_event event;
3897   char c;
3898
3899 /*  NSTRACE ("ns_select"); */
3900
3901 #ifdef HAVE_NATIVE_FS
3902   check_native_fs ();
3903 #endif
3904
3905   if (hold_event_q.nr > 0)
3906     {
3907       /* We already have events pending. */
3908       raise (SIGIO);
3909       errno = EINTR;
3910       return -1;
3911     }
3912
3913   for (k = 0; k < nfds+1; k++)
3914     {
3915       if (readfds && FD_ISSET(k, readfds)) ++nr;
3916       if (writefds && FD_ISSET(k, writefds)) ++nr;
3917     }
3918
3919   if (NSApp == nil
3920       || (timeout && timeout->tv_sec == 0 && timeout->tv_nsec == 0))
3921     return pselect (nfds, readfds, writefds, exceptfds, timeout, sigmask);
3922
3923   [outerpool release];
3924   outerpool = [[NSAutoreleasePool alloc] init];
3925
3926
3927   send_appdefined = YES;
3928   if (nr > 0)
3929     {
3930       pthread_mutex_lock (&select_mutex);
3931       select_nfds = nfds;
3932       select_valid = 0;
3933       if (readfds)
3934         {
3935           select_readfds = *readfds;
3936           select_valid += SELECT_HAVE_READ;
3937         }
3938       if (writefds)
3939         {
3940           select_writefds = *writefds;
3941           select_valid += SELECT_HAVE_WRITE;
3942         }
3943
3944       if (timeout)
3945         {
3946           select_timeout = *timeout;
3947           select_valid += SELECT_HAVE_TMO;
3948         }
3949
3950       pthread_mutex_unlock (&select_mutex);
3951
3952       /* Inform fd_handler that select should be called */
3953       c = 'g';
3954       emacs_write_sig (selfds[1], &c, 1);
3955     }
3956   else if (nr == 0 && timeout)
3957     {
3958       /* No file descriptor, just a timeout, no need to wake fd_handler  */
3959       double time = timespectod (*timeout);
3960       timed_entry = [[NSTimer scheduledTimerWithTimeInterval: time
3961                                                       target: NSApp
3962                                                     selector:
3963                                   @selector (timeout_handler:)
3964                                                     userInfo: 0
3965                                                      repeats: NO]
3966                       retain];
3967     }
3968   else /* No timeout and no file descriptors, can this happen?  */
3969     {
3970       /* Send appdefined so we exit from the loop */
3971       ns_send_appdefined (-1);
3972     }
3973
3974   block_input ();
3975   ns_init_events (&event);
3976   if (++apploopnr != 1)
3977     {
3978       emacs_abort ();
3979     }
3980
3981   {
3982     ptrdiff_t specpdl_count = SPECPDL_INDEX ();
3983     record_unwind_protect (unwind_apploopnr, Qt);
3984     [NSApp run];
3985     unbind_to (specpdl_count, Qnil);  /* calls unwind_apploopnr */
3986   }
3987
3988   ns_finish_events ();
3989   if (nr > 0 && readfds)
3990     {
3991       c = 's';
3992       emacs_write_sig (selfds[1], &c, 1);
3993     }
3994   unblock_input ();
3995
3996   t = last_appdefined_event_data;
3997
3998   if (t != NO_APPDEFINED_DATA)
3999     {
4000       last_appdefined_event_data = NO_APPDEFINED_DATA;
4001
4002       if (t == -2)
4003         {
4004           /* The NX_APPDEFINED event we received was a timeout. */
4005           result = 0;
4006         }
4007       else if (t == -1)
4008         {
4009           /* The NX_APPDEFINED event we received was the result of
4010              at least one real input event arriving.  */
4011           errno = EINTR;
4012           result = -1;
4013         }
4014       else
4015         {
4016           /* Received back from select () in fd_handler; copy the results */
4017           pthread_mutex_lock (&select_mutex);
4018           if (readfds) *readfds = select_readfds;
4019           if (writefds) *writefds = select_writefds;
4020           pthread_mutex_unlock (&select_mutex);
4021           result = t;
4022         }
4023     }
4024   else
4025     {
4026       errno = EINTR;
4027       result = -1;
4028     }
4029
4030   return result;
4031 }
4032
4033
4034
4035 /* ==========================================================================
4036
4037     Scrollbar handling
4038
4039    ========================================================================== */
4040
4041
4042 static void
4043 ns_set_vertical_scroll_bar (struct window *window,
4044                            int portion, int whole, int position)
4045 /* --------------------------------------------------------------------------
4046       External (hook): Update or add scrollbar
4047    -------------------------------------------------------------------------- */
4048 {
4049   Lisp_Object win;
4050   NSRect r, v;
4051   struct frame *f = XFRAME (WINDOW_FRAME (window));
4052   EmacsView *view = FRAME_NS_VIEW (f);
4053   EmacsScroller *bar;
4054   int window_y, window_height;
4055   int top, left, height, width;
4056   BOOL update_p = YES;
4057
4058   /* optimization; display engine sends WAY too many of these.. */
4059   if (!NILP (window->vertical_scroll_bar))
4060     {
4061       bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
4062       if ([bar checkSamePosition: position portion: portion whole: whole])
4063         {
4064           if (view->scrollbarsNeedingUpdate == 0)
4065             {
4066               if (!windows_or_buffers_changed)
4067                   return;
4068             }
4069           else
4070             view->scrollbarsNeedingUpdate--;
4071           update_p = NO;
4072         }
4073     }
4074
4075   NSTRACE ("ns_set_vertical_scroll_bar");
4076
4077   /* Get dimensions.  */
4078   window_box (window, ANY_AREA, 0, &window_y, 0, &window_height);
4079   top = window_y;
4080   height = window_height;
4081   width = WINDOW_CONFIG_SCROLL_BAR_COLS (window) * FRAME_COLUMN_WIDTH (f);
4082   left = WINDOW_SCROLL_BAR_AREA_X (window);
4083
4084   r = NSMakeRect (left, top, width, height);
4085   /* the parent view is flipped, so we need to flip y value */
4086   v = [view frame];
4087   r.origin.y = (v.size.height - r.size.height - r.origin.y);
4088
4089   XSETWINDOW (win, window);
4090   block_input ();
4091
4092   /* we want at least 5 lines to display a scrollbar */
4093   if (WINDOW_TOTAL_LINES (window) < 5)
4094     {
4095       if (!NILP (window->vertical_scroll_bar))
4096         {
4097           bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
4098           [bar removeFromSuperview];
4099           wset_vertical_scroll_bar (window, Qnil);
4100           [bar release];
4101         }
4102       ns_clear_frame_area (f, left, top, width, height);
4103       unblock_input ();
4104       return;
4105     }
4106
4107   if (NILP (window->vertical_scroll_bar))
4108     {
4109       if (width > 0 && height > 0)
4110         ns_clear_frame_area (f, left, top, width, height);
4111
4112       bar = [[EmacsScroller alloc] initFrame: r window: win];
4113       wset_vertical_scroll_bar (window, make_save_ptr (bar));
4114       update_p = YES;
4115     }
4116   else
4117     {
4118       NSRect oldRect;
4119       bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
4120       oldRect = [bar frame];
4121       r.size.width = oldRect.size.width;
4122       if (FRAME_LIVE_P (f) && !NSEqualRects (oldRect, r))
4123         {
4124           if (oldRect.origin.x != r.origin.x)
4125               ns_clear_frame_area (f, left, top, width, height);
4126           [bar setFrame: r];
4127         }
4128     }
4129
4130   if (update_p)
4131     [bar setPosition: position portion: portion whole: whole];
4132   unblock_input ();
4133 }
4134
4135
4136 static void
4137 ns_set_horizontal_scroll_bar (struct window *window,
4138                               int portion, int whole, int position)
4139 /* --------------------------------------------------------------------------
4140       External (hook): Update or add scrollbar
4141    -------------------------------------------------------------------------- */
4142 {
4143   Lisp_Object win;
4144   NSRect r, v;
4145   struct frame *f = XFRAME (WINDOW_FRAME (window));
4146   EmacsView *view = FRAME_NS_VIEW (f);
4147   EmacsScroller *bar;
4148   int top, height, left, width;
4149   int window_x, window_width;
4150   BOOL update_p = YES;
4151
4152   /* optimization; display engine sends WAY too many of these.. */
4153   if (!NILP (window->horizontal_scroll_bar))
4154     {
4155       bar = XNS_SCROLL_BAR (window->horizontal_scroll_bar);
4156       if ([bar checkSamePosition: position portion: portion whole: whole])
4157         {
4158           if (view->scrollbarsNeedingUpdate == 0)
4159             {
4160               if (!windows_or_buffers_changed)
4161                   return;
4162             }
4163           else
4164             view->scrollbarsNeedingUpdate--;
4165           update_p = NO;
4166         }
4167     }
4168
4169   NSTRACE ("ns_set_horizontal_scroll_bar");
4170
4171   /* Get dimensions.  */
4172   window_box (window, ANY_AREA, 0, &window_x, &window_width, 0);
4173   left = window_x;
4174   width = window_width;
4175   height = WINDOW_CONFIG_SCROLL_BAR_LINES (window) * FRAME_LINE_HEIGHT (f);
4176   top = WINDOW_SCROLL_BAR_AREA_Y (window);
4177
4178   r = NSMakeRect (left, top, width, height);
4179   /* the parent view is flipped, so we need to flip y value */
4180   v = [view frame];
4181   /* ??????? PXW/scrollbars !!!!!!!!!!!!!!!!!!!! */
4182   r.origin.y = (v.size.height - r.size.height - r.origin.y);
4183
4184   XSETWINDOW (win, window);
4185   block_input ();
4186
4187   if (WINDOW_TOTAL_COLS (window) < 5)
4188     {
4189       if (!NILP (window->horizontal_scroll_bar))
4190         {
4191           bar = XNS_SCROLL_BAR (window->horizontal_scroll_bar);
4192           [bar removeFromSuperview];
4193           wset_horizontal_scroll_bar (window, Qnil);
4194         }
4195       ns_clear_frame_area (f, left, top, width, height);
4196       unblock_input ();
4197       return;
4198     }
4199
4200   if (NILP (window->horizontal_scroll_bar))
4201     {
4202       if (width > 0 && height > 0)
4203         ns_clear_frame_area (f, left, top, width, height);
4204
4205       bar = [[EmacsScroller alloc] initFrame: r window: win];
4206       wset_horizontal_scroll_bar (window, make_save_ptr (bar));
4207       update_p = YES;
4208     }
4209   else
4210     {
4211       NSRect oldRect;
4212       bar = XNS_SCROLL_BAR (window->horizontal_scroll_bar);
4213       oldRect = [bar frame];
4214       r.size.width = oldRect.size.width;
4215       if (FRAME_LIVE_P (f) && !NSEqualRects (oldRect, r))
4216         {
4217           if (oldRect.origin.x != r.origin.x)
4218               ns_clear_frame_area (f, left, top, width, height);
4219           [bar setFrame: r];
4220           update_p = YES;
4221         }
4222     }
4223
4224   if (update_p)
4225     [bar setPosition: position portion: portion whole: whole];
4226   unblock_input ();
4227 }
4228
4229
4230 static void
4231 ns_condemn_scroll_bars (struct frame *f)
4232 /* --------------------------------------------------------------------------
4233      External (hook): arrange for all frame's scrollbars to be removed
4234      at next call to judge_scroll_bars, except for those redeemed.
4235    -------------------------------------------------------------------------- */
4236 {
4237   int i;
4238   id view;
4239   NSArray *subviews = [[FRAME_NS_VIEW (f) superview] subviews];
4240
4241   NSTRACE ("ns_condemn_scroll_bars");
4242
4243   for (i =[subviews count]-1; i >= 0; i--)
4244     {
4245       view = [subviews objectAtIndex: i];
4246       if ([view isKindOfClass: [EmacsScroller class]])
4247         [view condemn];
4248     }
4249 }
4250
4251
4252 static void
4253 ns_redeem_scroll_bar (struct window *window)
4254 /* --------------------------------------------------------------------------
4255      External (hook): arrange to spare this window's scrollbar
4256      at next call to judge_scroll_bars.
4257    -------------------------------------------------------------------------- */
4258 {
4259   id bar;
4260   NSTRACE ("ns_redeem_scroll_bar");
4261   if (!NILP (window->vertical_scroll_bar))
4262     {
4263       bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
4264       [bar reprieve];
4265     }
4266
4267   if (!NILP (window->horizontal_scroll_bar))
4268     {
4269       bar = XNS_SCROLL_BAR (window->horizontal_scroll_bar);
4270       [bar reprieve];
4271     }
4272 }
4273
4274
4275 static void
4276 ns_judge_scroll_bars (struct frame *f)
4277 /* --------------------------------------------------------------------------
4278      External (hook): destroy all scrollbars on frame that weren't
4279      redeemed after call to condemn_scroll_bars.
4280    -------------------------------------------------------------------------- */
4281 {
4282   int i;
4283   id view;
4284   EmacsView *eview = FRAME_NS_VIEW (f);
4285   NSArray *subviews = [[eview superview] subviews];
4286   BOOL removed = NO;
4287
4288   NSTRACE ("ns_judge_scroll_bars");
4289   for (i = [subviews count]-1; i >= 0; --i)
4290     {
4291       view = [subviews objectAtIndex: i];
4292       if (![view isKindOfClass: [EmacsScroller class]]) continue;
4293       if ([view judge])
4294         removed = YES;
4295     }
4296
4297   if (removed)
4298     [eview updateFrameSize: NO];
4299 }
4300
4301 /* ==========================================================================
4302
4303     Initialization
4304
4305    ========================================================================== */
4306
4307 int
4308 x_display_pixel_height (struct ns_display_info *dpyinfo)
4309 {
4310   NSArray *screens = [NSScreen screens];
4311   NSEnumerator *enumerator = [screens objectEnumerator];
4312   NSScreen *screen;
4313   NSRect frame;
4314
4315   frame = NSZeroRect;
4316   while ((screen = [enumerator nextObject]) != nil)
4317     frame = NSUnionRect (frame, [screen frame]);
4318
4319   return NSHeight (frame);
4320 }
4321
4322 int
4323 x_display_pixel_width (struct ns_display_info *dpyinfo)
4324 {
4325   NSArray *screens = [NSScreen screens];
4326   NSEnumerator *enumerator = [screens objectEnumerator];
4327   NSScreen *screen;
4328   NSRect frame;
4329
4330   frame = NSZeroRect;
4331   while ((screen = [enumerator nextObject]) != nil)
4332     frame = NSUnionRect (frame, [screen frame]);
4333
4334   return NSWidth (frame);
4335 }
4336
4337
4338 static Lisp_Object ns_string_to_lispmod (const char *s)
4339 /* --------------------------------------------------------------------------
4340      Convert modifier name to lisp symbol
4341    -------------------------------------------------------------------------- */
4342 {
4343   if (!strncmp (SSDATA (SYMBOL_NAME (Qmeta)), s, 10))
4344     return Qmeta;
4345   else if (!strncmp (SSDATA (SYMBOL_NAME (Qsuper)), s, 10))
4346     return Qsuper;
4347   else if (!strncmp (SSDATA (SYMBOL_NAME (Qcontrol)), s, 10))
4348     return Qcontrol;
4349   else if (!strncmp (SSDATA (SYMBOL_NAME (Qalt)), s, 10))
4350     return Qalt;
4351   else if (!strncmp (SSDATA (SYMBOL_NAME (Qhyper)), s, 10))
4352     return Qhyper;
4353   else if (!strncmp (SSDATA (SYMBOL_NAME (Qnone)), s, 10))
4354     return Qnone;
4355   else
4356     return Qnil;
4357 }
4358
4359
4360 static void
4361 ns_default (const char *parameter, Lisp_Object *result,
4362            Lisp_Object yesval, Lisp_Object noval,
4363            BOOL is_float, BOOL is_modstring)
4364 /* --------------------------------------------------------------------------
4365       Check a parameter value in user's preferences
4366    -------------------------------------------------------------------------- */
4367 {
4368   const char *value = ns_get_defaults_value (parameter);
4369
4370   if (value)
4371     {
4372       double f;
4373       char *pos;
4374       if (c_strcasecmp (value, "YES") == 0)
4375         *result = yesval;
4376       else if (c_strcasecmp (value, "NO") == 0)
4377         *result = noval;
4378       else if (is_float && (f = strtod (value, &pos), pos != value))
4379         *result = make_float (f);
4380       else if (is_modstring && value)
4381         *result = ns_string_to_lispmod (value);
4382       else fprintf (stderr,
4383                    "Bad value for default \"%s\": \"%s\"\n", parameter, value);
4384     }
4385 }
4386
4387
4388 static void
4389 ns_initialize_display_info (struct ns_display_info *dpyinfo)
4390 /* --------------------------------------------------------------------------
4391       Initialize global info and storage for display.
4392    -------------------------------------------------------------------------- */
4393 {
4394     NSScreen *screen = [NSScreen mainScreen];
4395     NSWindowDepth depth = [screen depth];
4396
4397     dpyinfo->resx = 72.27; /* used 75.0, but this makes pt == pixel, expected */
4398     dpyinfo->resy = 72.27;
4399     dpyinfo->color_p = ![NSDeviceWhiteColorSpace isEqualToString:
4400                                                   NSColorSpaceFromDepth (depth)]
4401                 && ![NSCalibratedWhiteColorSpace isEqualToString:
4402                                                  NSColorSpaceFromDepth (depth)];
4403     dpyinfo->n_planes = NSBitsPerPixelFromDepth (depth);
4404     dpyinfo->color_table = xmalloc (sizeof *dpyinfo->color_table);
4405     dpyinfo->color_table->colors = NULL;
4406     dpyinfo->root_window = 42; /* a placeholder.. */
4407     dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame = NULL;
4408     dpyinfo->n_fonts = 0;
4409     dpyinfo->smallest_font_height = 1;
4410     dpyinfo->smallest_char_width = 1;
4411
4412     reset_mouse_highlight (&dpyinfo->mouse_highlight);
4413 }
4414
4415
4416 /* This and next define (many of the) public functions in this file. */
4417 /* x_... are generic versions in xdisp.c that we, and other terms, get away
4418          with using despite presence in the "system dependent" redisplay
4419          interface.  In addition, many of the ns_ methods have code that is
4420          shared with all terms, indicating need for further refactoring. */
4421 extern frame_parm_handler ns_frame_parm_handlers[];
4422 static struct redisplay_interface ns_redisplay_interface =
4423 {
4424   ns_frame_parm_handlers,
4425   x_produce_glyphs,
4426   x_write_glyphs,
4427   x_insert_glyphs,
4428   x_clear_end_of_line,
4429   ns_scroll_run,
4430   ns_after_update_window_line,
4431   ns_update_window_begin,
4432   ns_update_window_end,
4433   0, /* flush_display */
4434   x_clear_window_mouse_face,
4435   x_get_glyph_overhangs,
4436   x_fix_overlapping_area,
4437   ns_draw_fringe_bitmap,
4438   0, /* define_fringe_bitmap */ /* FIXME: simplify ns_draw_fringe_bitmap */
4439   0, /* destroy_fringe_bitmap */
4440   ns_compute_glyph_string_overhangs,
4441   ns_draw_glyph_string,
4442   ns_define_frame_cursor,
4443   ns_clear_frame_area,
4444   ns_draw_window_cursor,
4445   ns_draw_vertical_window_border,
4446   ns_draw_window_divider,
4447   ns_shift_glyphs_for_insert,
4448   ns_show_hourglass,
4449   ns_hide_hourglass
4450 };
4451
4452
4453 static void
4454 ns_delete_display (struct ns_display_info *dpyinfo)
4455 {
4456   /* TODO... */
4457 }
4458
4459
4460 /* This function is called when the last frame on a display is deleted. */
4461 static void
4462 ns_delete_terminal (struct terminal *terminal)
4463 {
4464   struct ns_display_info *dpyinfo = terminal->display_info.ns;
4465
4466   NSTRACE ("ns_delete_terminal");
4467
4468   /* Protect against recursive calls.  delete_frame in
4469      delete_terminal calls us back when it deletes our last frame.  */
4470   if (!terminal->name)
4471     return;
4472
4473   block_input ();
4474
4475   x_destroy_all_bitmaps (dpyinfo);
4476   ns_delete_display (dpyinfo);
4477   unblock_input ();
4478 }
4479
4480
4481 static struct terminal *
4482 ns_create_terminal (struct ns_display_info *dpyinfo)
4483 /* --------------------------------------------------------------------------
4484       Set up use of NS before we make the first connection.
4485    -------------------------------------------------------------------------- */
4486 {
4487   struct terminal *terminal;
4488
4489   NSTRACE ("ns_create_terminal");
4490
4491   terminal = create_terminal (output_ns, &ns_redisplay_interface);
4492
4493   terminal->display_info.ns = dpyinfo;
4494   dpyinfo->terminal = terminal;
4495
4496   terminal->clear_frame_hook = ns_clear_frame;
4497   terminal->ring_bell_hook = ns_ring_bell;
4498   terminal->update_begin_hook = ns_update_begin;
4499   terminal->update_end_hook = ns_update_end;
4500   terminal->read_socket_hook = ns_read_socket;
4501   terminal->frame_up_to_date_hook = ns_frame_up_to_date;
4502   terminal->mouse_position_hook = ns_mouse_position;
4503   terminal->frame_rehighlight_hook = ns_frame_rehighlight;
4504   terminal->frame_raise_lower_hook = ns_frame_raise_lower;
4505   terminal->fullscreen_hook = ns_fullscreen_hook;
4506   terminal->menu_show_hook = ns_menu_show;
4507   terminal->popup_dialog_hook = ns_popup_dialog;
4508   terminal->set_vertical_scroll_bar_hook = ns_set_vertical_scroll_bar;
4509   terminal->set_horizontal_scroll_bar_hook = ns_set_horizontal_scroll_bar;
4510   terminal->condemn_scroll_bars_hook = ns_condemn_scroll_bars;
4511   terminal->redeem_scroll_bar_hook = ns_redeem_scroll_bar;
4512   terminal->judge_scroll_bars_hook = ns_judge_scroll_bars;
4513   terminal->delete_frame_hook = x_destroy_window;
4514   terminal->delete_terminal_hook = ns_delete_terminal;
4515   /* Other hooks are NULL by default.  */
4516
4517   return terminal;
4518 }
4519
4520
4521 struct ns_display_info *
4522 ns_term_init (Lisp_Object display_name)
4523 /* --------------------------------------------------------------------------
4524      Start the Application and get things rolling.
4525    -------------------------------------------------------------------------- */
4526 {
4527   struct terminal *terminal;
4528   struct ns_display_info *dpyinfo;
4529   static int ns_initialized = 0;
4530   Lisp_Object tmp;
4531
4532   if (ns_initialized) return x_display_list;
4533   ns_initialized = 1;
4534
4535   block_input ();
4536
4537   NSTRACE ("ns_term_init");
4538
4539   [outerpool release];
4540   outerpool = [[NSAutoreleasePool alloc] init];
4541
4542   /* count object allocs (About, click icon); on OS X use ObjectAlloc tool */
4543   /*GSDebugAllocationActive (YES); */
4544   block_input ();
4545
4546   baud_rate = 38400;
4547   Fset_input_interrupt_mode (Qnil);
4548
4549   if (selfds[0] == -1)
4550     {
4551       if (emacs_pipe (selfds) != 0)
4552         {
4553           fprintf (stderr, "Failed to create pipe: %s\n",
4554                    emacs_strerror (errno));
4555           emacs_abort ();
4556         }
4557
4558       fcntl (selfds[0], F_SETFL, O_NONBLOCK|fcntl (selfds[0], F_GETFL));
4559       FD_ZERO (&select_readfds);
4560       FD_ZERO (&select_writefds);
4561       pthread_mutex_init (&select_mutex, NULL);
4562     }
4563
4564   ns_pending_files = [[NSMutableArray alloc] init];
4565   ns_pending_service_names = [[NSMutableArray alloc] init];
4566   ns_pending_service_args = [[NSMutableArray alloc] init];
4567
4568 /* Start app and create the main menu, window, view.
4569      Needs to be here because ns_initialize_display_info () uses AppKit classes.
4570      The view will then ask the NSApp to stop and return to Emacs. */
4571   [EmacsApp sharedApplication];
4572   if (NSApp == nil)
4573     return NULL;
4574   [NSApp setDelegate: NSApp];
4575
4576   /* Start the select thread.  */
4577   [NSThread detachNewThreadSelector:@selector (fd_handler:)
4578                            toTarget:NSApp
4579                          withObject:nil];
4580
4581   /* debugging: log all notifications */
4582   /*   [[NSNotificationCenter defaultCenter] addObserver: NSApp
4583                                          selector: @selector (logNotification:)
4584                                              name: nil object: nil]; */
4585
4586   dpyinfo = xzalloc (sizeof *dpyinfo);
4587
4588   ns_initialize_display_info (dpyinfo);
4589   terminal = ns_create_terminal (dpyinfo);
4590
4591   terminal->kboard = allocate_kboard (Qns);
4592   /* Don't let the initial kboard remain current longer than necessary.
4593      That would cause problems if a file loaded on startup tries to
4594      prompt in the mini-buffer.  */
4595   if (current_kboard == initial_kboard)
4596     current_kboard = terminal->kboard;
4597   terminal->kboard->reference_count++;
4598
4599   dpyinfo->next = x_display_list;
4600   x_display_list = dpyinfo;
4601
4602   dpyinfo->name_list_element = Fcons (display_name, Qnil);
4603
4604   terminal->name = xlispstrdup (display_name);
4605
4606   unblock_input ();
4607
4608   if (!inhibit_x_resources)
4609     {
4610       ns_default ("GSFontAntiAlias", &ns_antialias_text,
4611                  Qt, Qnil, NO, NO);
4612       tmp = Qnil;
4613       /* this is a standard variable */
4614       ns_default ("AppleAntiAliasingThreshold", &tmp,
4615                  make_float (10.0), make_float (6.0), YES, NO);
4616       ns_antialias_threshold = NILP (tmp) ? 10.0 : XFLOATINT (tmp);
4617     }
4618
4619   NSTRACE_MSG ("Colors");
4620
4621   {
4622     NSColorList *cl = [NSColorList colorListNamed: @"Emacs"];
4623
4624     if ( cl == nil )
4625       {
4626         Lisp_Object color_file, color_map, color;
4627         unsigned long c;
4628         char *name;
4629
4630         color_file = Fexpand_file_name (build_string ("rgb.txt"),
4631                          Fsymbol_value (intern ("data-directory")));
4632
4633         color_map = Fx_load_color_file (color_file);
4634         if (NILP (color_map))
4635           fatal ("Could not read %s.\n", SDATA (color_file));
4636
4637         cl = [[NSColorList alloc] initWithName: @"Emacs"];
4638         for ( ; CONSP (color_map); color_map = XCDR (color_map))
4639           {
4640             color = XCAR (color_map);
4641             name = SSDATA (XCAR (color));
4642             c = XINT (XCDR (color));
4643             [cl setColor:
4644                   [NSColor colorForEmacsRed: RED_FROM_ULONG (c) / 255.0
4645                                       green: GREEN_FROM_ULONG (c) / 255.0
4646                                        blue: BLUE_FROM_ULONG (c) / 255.0
4647                                       alpha: 1.0]
4648                   forKey: [NSString stringWithUTF8String: name]];
4649           }
4650         [cl writeToFile: nil];
4651       }
4652   }
4653
4654   NSTRACE_MSG ("Versions");
4655
4656   {
4657 #ifdef NS_IMPL_GNUSTEP
4658     Vwindow_system_version = build_string (gnustep_base_version);
4659 #else
4660     /*PSnextrelease (128, c); */
4661     char c[DBL_BUFSIZE_BOUND];
4662     int len = dtoastr (c, sizeof c, 0, 0, NSAppKitVersionNumber);
4663     Vwindow_system_version = make_unibyte_string (c, len);
4664 #endif
4665   }
4666
4667   delete_keyboard_wait_descriptor (0);
4668
4669   ns_app_name = [[NSProcessInfo processInfo] processName];
4670
4671   /* Set up OS X app menu */
4672
4673   NSTRACE_MSG ("Menu init");
4674
4675 #ifdef NS_IMPL_COCOA
4676   {
4677     NSMenu *appMenu;
4678     NSMenuItem *item;
4679     /* set up the application menu */
4680     svcsMenu = [[EmacsMenu alloc] initWithTitle: @"Services"];
4681     [svcsMenu setAutoenablesItems: NO];
4682     appMenu = [[EmacsMenu alloc] initWithTitle: @"Emacs"];
4683     [appMenu setAutoenablesItems: NO];
4684     mainMenu = [[EmacsMenu alloc] initWithTitle: @""];
4685     dockMenu = [[EmacsMenu alloc] initWithTitle: @""];
4686
4687     [appMenu insertItemWithTitle: @"About Emacs"
4688                           action: @selector (orderFrontStandardAboutPanel:)
4689                    keyEquivalent: @""
4690                          atIndex: 0];
4691     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 1];
4692     [appMenu insertItemWithTitle: @"Preferences..."
4693                           action: @selector (showPreferencesWindow:)
4694                    keyEquivalent: @","
4695                          atIndex: 2];
4696     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 3];
4697     item = [appMenu insertItemWithTitle: @"Services"
4698                                  action: @selector (menuDown:)
4699                           keyEquivalent: @""
4700                                 atIndex: 4];
4701     [appMenu setSubmenu: svcsMenu forItem: item];
4702     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 5];
4703     [appMenu insertItemWithTitle: @"Hide Emacs"
4704                           action: @selector (hide:)
4705                    keyEquivalent: @"h"
4706                          atIndex: 6];
4707     item =  [appMenu insertItemWithTitle: @"Hide Others"
4708                           action: @selector (hideOtherApplications:)
4709                    keyEquivalent: @"h"
4710                          atIndex: 7];
4711     [item setKeyEquivalentModifierMask: NSCommandKeyMask | NSAlternateKeyMask];
4712     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 8];
4713     [appMenu insertItemWithTitle: @"Quit Emacs"
4714                           action: @selector (terminate:)
4715                    keyEquivalent: @"q"
4716                          atIndex: 9];
4717
4718     item = [mainMenu insertItemWithTitle: ns_app_name
4719                                   action: @selector (menuDown:)
4720                            keyEquivalent: @""
4721                                  atIndex: 0];
4722     [mainMenu setSubmenu: appMenu forItem: item];
4723     [dockMenu insertItemWithTitle: @"New Frame"
4724                            action: @selector (newFrame:)
4725                     keyEquivalent: @""
4726                           atIndex: 0];
4727
4728     [NSApp setMainMenu: mainMenu];
4729     [NSApp setAppleMenu: appMenu];
4730     [NSApp setServicesMenu: svcsMenu];
4731     /* Needed at least on Cocoa, to get dock menu to show windows */
4732     [NSApp setWindowsMenu: [[NSMenu alloc] init]];
4733
4734     [[NSNotificationCenter defaultCenter]
4735       addObserver: mainMenu
4736          selector: @selector (trackingNotification:)
4737              name: NSMenuDidBeginTrackingNotification object: mainMenu];
4738     [[NSNotificationCenter defaultCenter]
4739       addObserver: mainMenu
4740          selector: @selector (trackingNotification:)
4741              name: NSMenuDidEndTrackingNotification object: mainMenu];
4742   }
4743 #endif /* MAC OS X menu setup */
4744
4745   /* Register our external input/output types, used for determining
4746      applicable services and also drag/drop eligibility. */
4747
4748   NSTRACE_MSG ("Input/output types");
4749
4750   ns_send_types = [[NSArray arrayWithObjects: NSStringPboardType, nil] retain];
4751   ns_return_types = [[NSArray arrayWithObjects: NSStringPboardType, nil]
4752                       retain];
4753   ns_drag_types = [[NSArray arrayWithObjects:
4754                             NSStringPboardType,
4755                             NSTabularTextPboardType,
4756                             NSFilenamesPboardType,
4757                             NSURLPboardType, nil] retain];
4758
4759   /* If fullscreen is in init/default-frame-alist, focus isn't set
4760      right for fullscreen windows, so set this.  */
4761   [NSApp activateIgnoringOtherApps:YES];
4762
4763   NSTRACE_MSG ("Call NSApp run");
4764
4765   [NSApp run];
4766   ns_do_open_file = YES;
4767
4768 #ifdef NS_IMPL_GNUSTEP
4769   /* GNUstep steals SIGCHLD for use in NSTask, but we don't use NSTask.
4770      We must re-catch it so subprocess works.  */
4771   catch_child_signal ();
4772 #endif
4773
4774   NSTRACE_MSG ("ns_term_init done");
4775
4776   unblock_input ();
4777
4778   return dpyinfo;
4779 }
4780
4781
4782 void
4783 ns_term_shutdown (int sig)
4784 {
4785   [[NSUserDefaults standardUserDefaults] synchronize];
4786
4787   /* code not reached in emacs.c after this is called by shut_down_emacs: */
4788   if (STRINGP (Vauto_save_list_file_name))
4789     unlink (SSDATA (Vauto_save_list_file_name));
4790
4791   if (sig == 0 || sig == SIGTERM)
4792     {
4793       [NSApp terminate: NSApp];
4794     }
4795   else // force a stack trace to happen
4796     {
4797       emacs_abort ();
4798     }
4799 }
4800
4801
4802 /* ==========================================================================
4803
4804     EmacsApp implementation
4805
4806    ========================================================================== */
4807
4808
4809 @implementation EmacsApp
4810
4811 - (id)init
4812 {
4813   NSTRACE ("[EmacsApp init]");
4814
4815   if ((self = [super init]))
4816     {
4817 #ifdef NS_IMPL_COCOA
4818       self->isFirst = YES;
4819 #endif
4820 #ifdef NS_IMPL_GNUSTEP
4821       self->applicationDidFinishLaunchingCalled = NO;
4822 #endif
4823     }
4824
4825   return self;
4826 }
4827
4828 #ifdef NS_IMPL_COCOA
4829 - (void)run
4830 {
4831   NSTRACE ("[EmacsApp run]");
4832
4833 #ifndef NSAppKitVersionNumber10_9
4834 #define NSAppKitVersionNumber10_9 1265
4835 #endif
4836
4837     if ((int)NSAppKitVersionNumber != NSAppKitVersionNumber10_9)
4838       {
4839         [super run];
4840         return;
4841       }
4842
4843   NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
4844
4845   if (isFirst) [self finishLaunching];
4846   isFirst = NO;
4847
4848   shouldKeepRunning = YES;
4849   do
4850     {
4851       [pool release];
4852       pool = [[NSAutoreleasePool alloc] init];
4853
4854       NSEvent *event =
4855         [self nextEventMatchingMask:NSAnyEventMask
4856                           untilDate:[NSDate distantFuture]
4857                              inMode:NSDefaultRunLoopMode
4858                             dequeue:YES];
4859
4860       [self sendEvent:event];
4861       [self updateWindows];
4862     } while (shouldKeepRunning);
4863
4864   [pool release];
4865 }
4866
4867 - (void)stop: (id)sender
4868 {
4869   NSTRACE ("[EmacsApp stop]");
4870
4871     shouldKeepRunning = NO;
4872     // Stop possible dialog also.  Noop if no dialog present.
4873     // The file dialog still leaks 7k - 10k on 10.9 though.
4874     [super stop:sender];
4875 }
4876 #endif /* NS_IMPL_COCOA */
4877
4878 - (void)logNotification: (NSNotification *)notification
4879 {
4880   NSTRACE ("[EmacsApp logNotification]");
4881
4882   const char *name = [[notification name] UTF8String];
4883   if (!strstr (name, "Update") && !strstr (name, "NSMenu")
4884       && !strstr (name, "WindowNumber"))
4885     NSLog (@"notification: '%@'", [notification name]);
4886 }
4887
4888
4889 - (void)sendEvent: (NSEvent *)theEvent
4890 /* --------------------------------------------------------------------------
4891      Called when NSApp is running for each event received.  Used to stop
4892      the loop when we choose, since there's no way to just run one iteration.
4893    -------------------------------------------------------------------------- */
4894 {
4895   int type = [theEvent type];
4896   NSWindow *window = [theEvent window];
4897
4898   NSTRACE ("[EmacsApp sendEvent]");
4899 /*fprintf (stderr, "received event of type %d\t%d\n", type);*/
4900
4901 #ifdef NS_IMPL_GNUSTEP
4902   // Keyboard events aren't propagated to file dialogs for some reason.
4903   if ([NSApp modalWindow] != nil &&
4904       (type == NSKeyDown || type == NSKeyUp || type == NSFlagsChanged))
4905     {
4906       [[NSApp modalWindow] sendEvent: theEvent];
4907       return;
4908     }
4909 #endif
4910
4911   if (represented_filename != nil && represented_frame)
4912     {
4913       NSString *fstr = represented_filename;
4914       NSView *view = FRAME_NS_VIEW (represented_frame);
4915 #ifdef NS_IMPL_COCOA
4916       /* work around a bug observed on 10.3 and later where
4917          setTitleWithRepresentedFilename does not clear out previous state
4918          if given filename does not exist */
4919       if (! [[NSFileManager defaultManager] fileExistsAtPath: fstr])
4920         [[view window] setRepresentedFilename: @""];
4921 #endif
4922       [[view window] setRepresentedFilename: fstr];
4923       [represented_filename release];
4924       represented_filename = nil;
4925       represented_frame = NULL;
4926     }
4927
4928   if (type == NSApplicationDefined)
4929     {
4930       switch ([theEvent data2])
4931         {
4932 #ifdef NS_IMPL_COCOA
4933         case NSAPP_DATA2_RUNASSCRIPT:
4934           ns_run_ascript ();
4935           [self stop: self];
4936           return;
4937 #endif
4938         case NSAPP_DATA2_RUNFILEDIALOG:
4939           ns_run_file_dialog ();
4940           [self stop: self];
4941           return;
4942         }
4943     }
4944
4945   if (type == NSCursorUpdate && window == nil)
4946     {
4947       fprintf (stderr, "Dropping external cursor update event.\n");
4948       return;
4949     }
4950
4951   if (type == NSApplicationDefined)
4952     {
4953       /* Events posted by ns_send_appdefined interrupt the run loop here.
4954          But, if a modal window is up, an appdefined can still come through,
4955          (e.g., from a makeKeyWindow event) but stopping self also stops the
4956          modal loop. Just defer it until later. */
4957       if ([NSApp modalWindow] == nil)
4958         {
4959           last_appdefined_event_data = [theEvent data1];
4960           [self stop: self];
4961         }
4962       else
4963         {
4964           send_appdefined = YES;
4965         }
4966     }
4967
4968
4969 #ifdef NS_IMPL_COCOA
4970   /* If no dialog and none of our frames have focus and it is a move, skip it.
4971      It is a mouse move in an auxiliary menu, i.e. on the top right on OSX,
4972      such as Wifi, sound, date or similar.
4973      This prevents "spooky" highlighting in the frame under the menu.  */
4974   if (type == NSMouseMoved && [NSApp modalWindow] == nil)
4975     {
4976       struct ns_display_info *di;
4977       BOOL has_focus = NO;
4978       for (di = x_display_list; ! has_focus && di; di = di->next)
4979         has_focus = di->x_focus_frame != 0;
4980       if (! has_focus)
4981         return;
4982     }
4983 #endif
4984
4985   [super sendEvent: theEvent];
4986 }
4987
4988
4989 - (void)showPreferencesWindow: (id)sender
4990 {
4991   struct frame *emacsframe = SELECTED_FRAME ();
4992   NSEvent *theEvent = [NSApp currentEvent];
4993
4994   if (!emacs_event)
4995     return;
4996   emacs_event->kind = NS_NONKEY_EVENT;
4997   emacs_event->code = KEY_NS_SHOW_PREFS;
4998   emacs_event->modifiers = 0;
4999   EV_TRAILER (theEvent);
5000 }
5001
5002
5003 - (void)newFrame: (id)sender
5004 {
5005   NSTRACE ("[EmacsApp newFrame]");
5006
5007   struct frame *emacsframe = SELECTED_FRAME ();
5008   NSEvent *theEvent = [NSApp currentEvent];
5009
5010   if (!emacs_event)
5011     return;
5012   emacs_event->kind = NS_NONKEY_EVENT;
5013   emacs_event->code = KEY_NS_NEW_FRAME;
5014   emacs_event->modifiers = 0;
5015   EV_TRAILER (theEvent);
5016 }
5017
5018
5019 /* Open a file (used by below, after going into queue read by ns_read_socket) */
5020 - (BOOL) openFile: (NSString *)fileName
5021 {
5022   NSTRACE ("[EmacsApp openFile]");
5023
5024   struct frame *emacsframe = SELECTED_FRAME ();
5025   NSEvent *theEvent = [NSApp currentEvent];
5026
5027   if (!emacs_event)
5028     return NO;
5029
5030   emacs_event->kind = NS_NONKEY_EVENT;
5031   emacs_event->code = KEY_NS_OPEN_FILE_LINE;
5032   ns_input_file = append2 (ns_input_file, build_string ([fileName UTF8String]));
5033   ns_input_line = Qnil; /* can be start or cons start,end */
5034   emacs_event->modifiers =0;
5035   EV_TRAILER (theEvent);
5036
5037   return YES;
5038 }
5039
5040
5041 /* **************************************************************************
5042
5043       EmacsApp delegate implementation
5044
5045    ************************************************************************** */
5046
5047 - (void)applicationDidFinishLaunching: (NSNotification *)notification
5048 /* --------------------------------------------------------------------------
5049      When application is loaded, terminate event loop in ns_term_init
5050    -------------------------------------------------------------------------- */
5051 {
5052   NSTRACE ("[EmacsApp applicationDidFinishLaunching]");
5053
5054 #ifdef NS_IMPL_GNUSTEP
5055   ((EmacsApp *)self)->applicationDidFinishLaunchingCalled = YES;
5056 #endif
5057   [NSApp setServicesProvider: NSApp];
5058
5059   [self antialiasThresholdDidChange:nil];
5060 #ifdef NS_IMPL_COCOA
5061   [[NSNotificationCenter defaultCenter]
5062     addObserver:self
5063        selector:@selector(antialiasThresholdDidChange:)
5064            name:NSAntialiasThresholdChangedNotification
5065          object:nil];
5066 #endif
5067
5068   ns_send_appdefined (-2);
5069 }
5070
5071 - (void)antialiasThresholdDidChange:(NSNotification *)notification
5072 {
5073 #ifdef NS_IMPL_COCOA
5074   macfont_update_antialias_threshold ();
5075 #endif
5076 }
5077
5078
5079 /* Termination sequences:
5080     C-x C-c:
5081     Cmd-Q:
5082     MenuBar | File | Exit:
5083     Select Quit from App menubar:
5084         -terminate
5085         KEY_NS_POWER_OFF, (save-buffers-kill-emacs)
5086         ns_term_shutdown()
5087
5088     Select Quit from Dock menu:
5089     Logout attempt:
5090         -appShouldTerminate
5091           Cancel -> Nothing else
5092           Accept ->
5093
5094           -terminate
5095           KEY_NS_POWER_OFF, (save-buffers-kill-emacs)
5096           ns_term_shutdown()
5097
5098 */
5099
5100 - (void) terminate: (id)sender
5101 {
5102   NSTRACE ("[EmacsApp terminate]");
5103
5104   struct frame *emacsframe = SELECTED_FRAME ();
5105
5106   if (!emacs_event)
5107     return;
5108
5109   emacs_event->kind = NS_NONKEY_EVENT;
5110   emacs_event->code = KEY_NS_POWER_OFF;
5111   emacs_event->arg = Qt; /* mark as non-key event */
5112   EV_TRAILER ((id)nil);
5113 }
5114
5115 static bool
5116 runAlertPanel(NSString *title,
5117               NSString *msgFormat,
5118               NSString *defaultButton,
5119               NSString *alternateButton)
5120 {
5121 #if !defined (NS_IMPL_COCOA) || \
5122   MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_9
5123   return NSRunAlertPanel(title, msgFormat, defaultButton, alternateButton, nil)
5124     == NSAlertDefaultReturn;
5125 #else
5126   NSAlert *alert = [[NSAlert alloc] init];
5127   [alert setAlertStyle: NSCriticalAlertStyle];
5128   [alert setMessageText: msgFormat];
5129   [alert addButtonWithTitle: defaultButton];
5130   [alert addButtonWithTitle: alternateButton];
5131   NSInteger ret = [alert runModal];
5132   [alert release];
5133   return ret == NSAlertFirstButtonReturn;
5134 #endif
5135 }
5136
5137
5138 - (NSApplicationTerminateReply)applicationShouldTerminate: (id)sender
5139 {
5140   NSTRACE ("[EmacsApp applicationShouldTerminate]");
5141
5142   bool ret;
5143
5144   if (NILP (ns_confirm_quit)) //   || ns_shutdown_properly  --> TO DO
5145     return NSTerminateNow;
5146
5147     ret = runAlertPanel(ns_app_name,
5148                         @"Exit requested.  Would you like to Save Buffers and Exit, or Cancel the request?",
5149                         @"Save Buffers and Exit", @"Cancel");
5150
5151     if (ret)
5152         return NSTerminateNow;
5153     else
5154         return NSTerminateCancel;
5155     return NSTerminateNow;  /* just in case */
5156 }
5157
5158 static int
5159 not_in_argv (NSString *arg)
5160 {
5161   int k;
5162   const char *a = [arg UTF8String];
5163   for (k = 1; k < initial_argc; ++k)
5164     if (strcmp (a, initial_argv[k]) == 0) return 0;
5165   return 1;
5166 }
5167
5168 /*   Notification from the Workspace to open a file */
5169 - (BOOL)application: sender openFile: (NSString *)file
5170 {
5171   if (ns_do_open_file || not_in_argv (file))
5172     [ns_pending_files addObject: file];
5173   return YES;
5174 }
5175
5176
5177 /*   Open a file as a temporary file */
5178 - (BOOL)application: sender openTempFile: (NSString *)file
5179 {
5180   if (ns_do_open_file || not_in_argv (file))
5181     [ns_pending_files addObject: file];
5182   return YES;
5183 }
5184
5185
5186 /*   Notification from the Workspace to open a file noninteractively (?) */
5187 - (BOOL)application: sender openFileWithoutUI: (NSString *)file
5188 {
5189   if (ns_do_open_file || not_in_argv (file))
5190     [ns_pending_files addObject: file];
5191   return YES;
5192 }
5193
5194 /*   Notification from the Workspace to open multiple files */
5195 - (void)application: sender openFiles: (NSArray *)fileList
5196 {
5197   NSEnumerator *files = [fileList objectEnumerator];
5198   NSString *file;
5199   /* Don't open files from the command line unconditionally,
5200      Cocoa parses the command line wrong, --option value tries to open value
5201      if --option is the last option.  */
5202   while ((file = [files nextObject]) != nil)
5203     if (ns_do_open_file || not_in_argv (file))
5204       [ns_pending_files addObject: file];
5205
5206   [self replyToOpenOrPrint: NSApplicationDelegateReplySuccess];
5207
5208 }
5209
5210
5211 /* Handle dock menu requests.  */
5212 - (NSMenu *)applicationDockMenu: (NSApplication *) sender
5213 {
5214   return dockMenu;
5215 }
5216
5217
5218 /* TODO: these may help w/IO switching btwn terminal and NSApp */
5219 - (void)applicationWillBecomeActive: (NSNotification *)notification
5220 {
5221   NSTRACE ("[EmacsApp applicationWillBecomeActive]");
5222   //ns_app_active=YES;
5223 }
5224
5225 - (void)applicationDidBecomeActive: (NSNotification *)notification
5226 {
5227   NSTRACE ("[EmacsApp applicationDidBecomeActive]");
5228
5229 #ifdef NS_IMPL_GNUSTEP
5230   if (! applicationDidFinishLaunchingCalled)
5231     [self applicationDidFinishLaunching:notification];
5232 #endif
5233   //ns_app_active=YES;
5234
5235   ns_update_auto_hide_menu_bar ();
5236   // No constraining takes place when the application is not active.
5237   ns_constrain_all_frames ();
5238 }
5239 - (void)applicationDidResignActive: (NSNotification *)notification
5240 {
5241   NSTRACE ("[EmacsApp applicationDidResignActive]");
5242
5243   //ns_app_active=NO;
5244   ns_send_appdefined (-1);
5245 }
5246
5247
5248
5249 /* ==========================================================================
5250
5251     EmacsApp aux handlers for managing event loop
5252
5253    ========================================================================== */
5254
5255
5256 - (void)timeout_handler: (NSTimer *)timedEntry
5257 /* --------------------------------------------------------------------------
5258      The timeout specified to ns_select has passed.
5259    -------------------------------------------------------------------------- */
5260 {
5261   /*NSTRACE ("timeout_handler"); */
5262   ns_send_appdefined (-2);
5263 }
5264
5265 #ifdef NS_IMPL_GNUSTEP
5266 - (void)sendFromMainThread:(id)unused
5267 {
5268   ns_send_appdefined (nextappdefined);
5269 }
5270 #endif
5271
5272 - (void)fd_handler:(id)unused
5273 /* --------------------------------------------------------------------------
5274      Check data waiting on file descriptors and terminate if so
5275    -------------------------------------------------------------------------- */
5276 {
5277   int result;
5278   int waiting = 1, nfds;
5279   char c;
5280
5281   fd_set readfds, writefds, *wfds;
5282   struct timespec timeout, *tmo;
5283   NSAutoreleasePool *pool = nil;
5284
5285   /* NSTRACE ("fd_handler"); */
5286
5287   for (;;)
5288     {
5289       [pool release];
5290       pool = [[NSAutoreleasePool alloc] init];
5291
5292       if (waiting)
5293         {
5294           fd_set fds;
5295           FD_ZERO (&fds);
5296           FD_SET (selfds[0], &fds);
5297           result = select (selfds[0]+1, &fds, NULL, NULL, NULL);
5298           if (result > 0 && read (selfds[0], &c, 1) == 1 && c == 'g')
5299             waiting = 0;
5300         }
5301       else
5302         {
5303           pthread_mutex_lock (&select_mutex);
5304           nfds = select_nfds;
5305
5306           if (select_valid & SELECT_HAVE_READ)
5307             readfds = select_readfds;
5308           else
5309             FD_ZERO (&readfds);
5310
5311           if (select_valid & SELECT_HAVE_WRITE)
5312             {
5313               writefds = select_writefds;
5314               wfds = &writefds;
5315             }
5316           else
5317             wfds = NULL;
5318           if (select_valid & SELECT_HAVE_TMO)
5319             {
5320               timeout = select_timeout;
5321               tmo = &timeout;
5322             }
5323           else
5324             tmo = NULL;
5325
5326           pthread_mutex_unlock (&select_mutex);
5327
5328           FD_SET (selfds[0], &readfds);
5329           if (selfds[0] >= nfds) nfds = selfds[0]+1;
5330
5331           result = pselect (nfds, &readfds, wfds, NULL, tmo, NULL);
5332
5333           if (result == 0)
5334             ns_send_appdefined (-2);
5335           else if (result > 0)
5336             {
5337               if (FD_ISSET (selfds[0], &readfds))
5338                 {
5339                   if (read (selfds[0], &c, 1) == 1 && c == 's')
5340                     waiting = 1;
5341                 }
5342               else
5343                 {
5344                   pthread_mutex_lock (&select_mutex);
5345                   if (select_valid & SELECT_HAVE_READ)
5346                     select_readfds = readfds;
5347                   if (select_valid & SELECT_HAVE_WRITE)
5348                     select_writefds = writefds;
5349                   if (select_valid & SELECT_HAVE_TMO)
5350                     select_timeout = timeout;
5351                   pthread_mutex_unlock (&select_mutex);
5352
5353                   ns_send_appdefined (result);
5354                 }
5355             }
5356           waiting = 1;
5357         }
5358     }
5359 }
5360
5361
5362
5363 /* ==========================================================================
5364
5365     Service provision
5366
5367    ========================================================================== */
5368
5369 /* called from system: queue for next pass through event loop */
5370 - (void)requestService: (NSPasteboard *)pboard
5371               userData: (NSString *)userData
5372                  error: (NSString **)error
5373 {
5374   [ns_pending_service_names addObject: userData];
5375   [ns_pending_service_args addObject: [NSString stringWithUTF8String:
5376       SSDATA (ns_string_from_pasteboard (pboard))]];
5377 }
5378
5379
5380 /* called from ns_read_socket to clear queue */
5381 - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
5382 {
5383   struct frame *emacsframe = SELECTED_FRAME ();
5384   NSEvent *theEvent = [NSApp currentEvent];
5385
5386   if (!emacs_event)
5387     return NO;
5388
5389   emacs_event->kind = NS_NONKEY_EVENT;
5390   emacs_event->code = KEY_NS_SPI_SERVICE_CALL;
5391   ns_input_spi_name = build_string ([name UTF8String]);
5392   ns_input_spi_arg = build_string ([arg UTF8String]);
5393   emacs_event->modifiers = EV_MODIFIERS (theEvent);
5394   EV_TRAILER (theEvent);
5395
5396   return YES;
5397 }
5398
5399
5400 @end  /* EmacsApp */
5401
5402
5403
5404 /* ==========================================================================
5405
5406     EmacsView implementation
5407
5408    ========================================================================== */
5409
5410
5411 @implementation EmacsView
5412
5413 /* needed to inform when window closed from LISP */
5414 - (void) setWindowClosing: (BOOL)closing
5415 {
5416   windowClosing = closing;
5417 }
5418
5419
5420 - (void)dealloc
5421 {
5422   NSTRACE ("EmacsView_dealloc");
5423   [toolbar release];
5424   if (fs_state == FULLSCREEN_BOTH)
5425     [nonfs_window release];
5426   [super dealloc];
5427 }
5428
5429
5430 /* called on font panel selection */
5431 - (void)changeFont: (id)sender
5432 {
5433   NSEvent *e = [[self window] currentEvent];
5434   struct face *face = FRAME_DEFAULT_FACE (emacsframe);
5435   struct font *font = face->font;
5436   id newFont;
5437   CGFloat size;
5438   NSFont *nsfont;
5439
5440   NSTRACE ("changeFont");
5441
5442   if (!emacs_event)
5443     return;
5444
5445 #ifdef NS_IMPL_GNUSTEP
5446   nsfont = ((struct nsfont_info *)font)->nsfont;
5447 #endif
5448 #ifdef NS_IMPL_COCOA
5449   nsfont = (NSFont *) macfont_get_nsctfont (font);
5450 #endif
5451
5452   if ((newFont = [sender convertFont: nsfont]))
5453     {
5454       SET_FRAME_GARBAGED (emacsframe); /* now needed as of 2008/10 */
5455
5456       emacs_event->kind = NS_NONKEY_EVENT;
5457       emacs_event->modifiers = 0;
5458       emacs_event->code = KEY_NS_CHANGE_FONT;
5459
5460       size = [newFont pointSize];
5461       ns_input_fontsize = make_number (lrint (size));
5462       ns_input_font = build_string ([[newFont familyName] UTF8String]);
5463       EV_TRAILER (e);
5464     }
5465 }
5466
5467
5468 - (BOOL)acceptsFirstResponder
5469 {
5470   NSTRACE ("acceptsFirstResponder");
5471   return YES;
5472 }
5473
5474
5475 - (void)resetCursorRects
5476 {
5477   NSRect visible = [self visibleRect];
5478   NSCursor *currentCursor = FRAME_POINTER_TYPE (emacsframe);
5479   NSTRACE ("resetCursorRects");
5480
5481   if (currentCursor == nil)
5482     currentCursor = [NSCursor arrowCursor];
5483
5484   if (!NSIsEmptyRect (visible))
5485     [self addCursorRect: visible cursor: currentCursor];
5486   [currentCursor setOnMouseEntered: YES];
5487 }
5488
5489
5490
5491 /*****************************************************************************/
5492 /* Keyboard handling. */
5493 #define NS_KEYLOG 0
5494
5495 - (void)keyDown: (NSEvent *)theEvent
5496 {
5497   Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (emacsframe);
5498   int code;
5499   unsigned fnKeysym = 0;
5500   static NSMutableArray *nsEvArray;
5501   int left_is_none;
5502   unsigned int flags = [theEvent modifierFlags];
5503
5504   NSTRACE ("keyDown");
5505
5506   /* Rhapsody and OS X give up and down events for the arrow keys */
5507   if (ns_fake_keydown == YES)
5508     ns_fake_keydown = NO;
5509   else if ([theEvent type] != NSKeyDown)
5510     return;
5511
5512   if (!emacs_event)
5513     return;
5514
5515  if (![[self window] isKeyWindow]
5516      && [[theEvent window] isKindOfClass: [EmacsWindow class]]
5517      /* we must avoid an infinite loop here. */
5518      && (EmacsView *)[[theEvent window] delegate] != self)
5519    {
5520      /* XXX: There is an occasional condition in which, when Emacs display
5521          updates a different frame from the current one, and temporarily
5522          selects it, then processes some interrupt-driven input
5523          (dispnew.c:3878), OS will send the event to the correct NSWindow, but
5524          for some reason that window has its first responder set to the NSView
5525          most recently updated (I guess), which is not the correct one. */
5526      [(EmacsView *)[[theEvent window] delegate] keyDown: theEvent];
5527      return;
5528    }
5529
5530   if (nsEvArray == nil)
5531     nsEvArray = [[NSMutableArray alloc] initWithCapacity: 1];
5532
5533   [NSCursor setHiddenUntilMouseMoves: YES];
5534
5535   if (hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
5536     {
5537       clear_mouse_face (hlinfo);
5538       hlinfo->mouse_face_hidden = 1;
5539     }
5540
5541   if (!processingCompose)
5542     {
5543       /* When using screen sharing, no left or right information is sent,
5544          so use Left key in those cases.  */
5545       int is_left_key, is_right_key;
5546
5547       code = ([[theEvent charactersIgnoringModifiers] length] == 0) ?
5548         0 : [[theEvent charactersIgnoringModifiers] characterAtIndex: 0];
5549
5550       /* (Carbon way: [theEvent keyCode]) */
5551
5552       /* is it a "function key"? */
5553       /* Note: Sometimes a plain key will have the NSNumericPadKeyMask
5554          flag set (this is probably a bug in the OS).
5555       */
5556       if (code < 0x00ff && (flags&NSNumericPadKeyMask))
5557         {
5558           fnKeysym = ns_convert_key ([theEvent keyCode] | NSNumericPadKeyMask);
5559         }
5560       if (fnKeysym == 0)
5561         {
5562           fnKeysym = ns_convert_key (code);
5563         }
5564
5565       if (fnKeysym)
5566         {
5567           /* COUNTERHACK: map 'Delete' on upper-right main KB to 'Backspace',
5568              because Emacs treats Delete and KP-Delete same (in simple.el). */
5569           if ((fnKeysym == 0xFFFF && [theEvent keyCode] == 0x33)
5570 #ifdef NS_IMPL_GNUSTEP
5571               /*  GNUstep uses incompatible keycodes, even for those that are
5572                   supposed to be hardware independent.  Just check for delete.
5573                   Keypad delete does not have keysym 0xFFFF.
5574                   See http://savannah.gnu.org/bugs/?25395
5575               */
5576               || (fnKeysym == 0xFFFF && code == 127)
5577 #endif
5578             )
5579             code = 0xFF08; /* backspace */
5580           else
5581             code = fnKeysym;
5582         }
5583
5584       /* are there modifiers? */
5585       emacs_event->modifiers = 0;
5586
5587       if (flags & NSHelpKeyMask)
5588           emacs_event->modifiers |= hyper_modifier;
5589
5590       if (flags & NSShiftKeyMask)
5591         emacs_event->modifiers |= shift_modifier;
5592
5593       is_right_key = (flags & NSRightCommandKeyMask) == NSRightCommandKeyMask;
5594       is_left_key = (flags & NSLeftCommandKeyMask) == NSLeftCommandKeyMask
5595         || (! is_right_key && (flags & NSCommandKeyMask) == NSCommandKeyMask);
5596
5597       if (is_right_key)
5598         emacs_event->modifiers |= parse_solitary_modifier
5599           (EQ (ns_right_command_modifier, Qleft)
5600            ? ns_command_modifier
5601            : ns_right_command_modifier);
5602
5603       if (is_left_key)
5604         {
5605           emacs_event->modifiers |= parse_solitary_modifier
5606             (ns_command_modifier);
5607
5608           /* if super (default), take input manager's word so things like
5609              dvorak / qwerty layout work */
5610           if (EQ (ns_command_modifier, Qsuper)
5611               && !fnKeysym
5612               && [[theEvent characters] length] != 0)
5613             {
5614               /* XXX: the code we get will be unshifted, so if we have
5615                  a shift modifier, must convert ourselves */
5616               if (!(flags & NSShiftKeyMask))
5617                 code = [[theEvent characters] characterAtIndex: 0];
5618 #if 0
5619               /* this is ugly and also requires linking w/Carbon framework
5620                  (for LMGetKbdType) so for now leave this rare (?) case
5621                  undealt with.. in future look into CGEvent methods */
5622               else
5623                 {
5624                   long smv = GetScriptManagerVariable (smKeyScript);
5625                   Handle uchrHandle = GetResource
5626                     ('uchr', GetScriptVariable (smv, smScriptKeys));
5627                   UInt32 dummy = 0;
5628                   UCKeyTranslate ((UCKeyboardLayout*)*uchrHandle,
5629                                  [[theEvent characters] characterAtIndex: 0],
5630                                  kUCKeyActionDisplay,
5631                                  (flags & ~NSCommandKeyMask) >> 8,
5632                                  LMGetKbdType (), kUCKeyTranslateNoDeadKeysMask,
5633                                  &dummy, 1, &dummy, &code);
5634                   code &= 0xFF;
5635                 }
5636 #endif
5637             }
5638         }
5639
5640       is_right_key = (flags & NSRightControlKeyMask) == NSRightControlKeyMask;
5641       is_left_key = (flags & NSLeftControlKeyMask) == NSLeftControlKeyMask
5642         || (! is_right_key && (flags & NSControlKeyMask) == NSControlKeyMask);
5643
5644       if (is_right_key)
5645           emacs_event->modifiers |= parse_solitary_modifier
5646               (EQ (ns_right_control_modifier, Qleft)
5647                ? ns_control_modifier
5648                : ns_right_control_modifier);
5649
5650       if (is_left_key)
5651         emacs_event->modifiers |= parse_solitary_modifier
5652           (ns_control_modifier);
5653
5654       if (flags & NS_FUNCTION_KEY_MASK && !fnKeysym)
5655           emacs_event->modifiers |=
5656             parse_solitary_modifier (ns_function_modifier);
5657
5658       left_is_none = NILP (ns_alternate_modifier)
5659         || EQ (ns_alternate_modifier, Qnone);
5660
5661       is_right_key = (flags & NSRightAlternateKeyMask)
5662         == NSRightAlternateKeyMask;
5663       is_left_key = (flags & NSLeftAlternateKeyMask) == NSLeftAlternateKeyMask
5664         || (! is_right_key
5665             && (flags & NSAlternateKeyMask) == NSAlternateKeyMask);
5666
5667       if (is_right_key)
5668         {
5669           if ((NILP (ns_right_alternate_modifier)
5670                || EQ (ns_right_alternate_modifier, Qnone)
5671                || (EQ (ns_right_alternate_modifier, Qleft) && left_is_none))
5672               && !fnKeysym)
5673             {   /* accept pre-interp alt comb */
5674               if ([[theEvent characters] length] > 0)
5675                 code = [[theEvent characters] characterAtIndex: 0];
5676               /*HACK: clear lone shift modifier to stop next if from firing */
5677               if (emacs_event->modifiers == shift_modifier)
5678                 emacs_event->modifiers = 0;
5679             }
5680           else
5681             emacs_event->modifiers |= parse_solitary_modifier
5682               (EQ (ns_right_alternate_modifier, Qleft)
5683                ? ns_alternate_modifier
5684                : ns_right_alternate_modifier);
5685         }
5686
5687       if (is_left_key) /* default = meta */
5688         {
5689           if (left_is_none && !fnKeysym)
5690             {   /* accept pre-interp alt comb */
5691               if ([[theEvent characters] length] > 0)
5692                 code = [[theEvent characters] characterAtIndex: 0];
5693               /*HACK: clear lone shift modifier to stop next if from firing */
5694               if (emacs_event->modifiers == shift_modifier)
5695                 emacs_event->modifiers = 0;
5696             }
5697           else
5698               emacs_event->modifiers |=
5699                 parse_solitary_modifier (ns_alternate_modifier);
5700         }
5701
5702   if (NS_KEYLOG)
5703     fprintf (stderr, "keyDown: code =%x\tfnKey =%x\tflags = %x\tmods = %x\n",
5704              code, fnKeysym, flags, emacs_event->modifiers);
5705
5706       /* if it was a function key or had modifiers, pass it directly to emacs */
5707       if (fnKeysym || (emacs_event->modifiers
5708                        && (emacs_event->modifiers != shift_modifier)
5709                        && [[theEvent charactersIgnoringModifiers] length] > 0))
5710 /*[[theEvent characters] length] */
5711         {
5712           emacs_event->kind = NON_ASCII_KEYSTROKE_EVENT;
5713           if (code < 0x20)
5714             code |= (1<<28)|(3<<16);
5715           else if (code == 0x7f)
5716             code |= (1<<28)|(3<<16);
5717           else if (!fnKeysym)
5718             emacs_event->kind = code > 0xFF
5719               ? MULTIBYTE_CHAR_KEYSTROKE_EVENT : ASCII_KEYSTROKE_EVENT;
5720
5721           emacs_event->code = code;
5722           EV_TRAILER (theEvent);
5723           processingCompose = NO;
5724           return;
5725         }
5726     }
5727
5728
5729   if (NS_KEYLOG && !processingCompose)
5730     fprintf (stderr, "keyDown: Begin compose sequence.\n");
5731
5732   processingCompose = YES;
5733   [nsEvArray addObject: theEvent];
5734   [self interpretKeyEvents: nsEvArray];
5735   [nsEvArray removeObject: theEvent];
5736 }
5737
5738
5739 #ifdef NS_IMPL_COCOA
5740 /* Needed to pick up Ctrl-tab and possibly other events that OS X has
5741    decided not to send key-down for.
5742    See http://osdir.com/ml/editors.vim.mac/2007-10/msg00141.html
5743    This only applies on Tiger and earlier.
5744    If it matches one of these, send it on to keyDown. */
5745 -(void)keyUp: (NSEvent *)theEvent
5746 {
5747   int flags = [theEvent modifierFlags];
5748   int code = [theEvent keyCode];
5749   if (floor (NSAppKitVersionNumber) <= 824 /*NSAppKitVersionNumber10_4*/ &&
5750       code == 0x30 && (flags & NSControlKeyMask) && !(flags & NSCommandKeyMask))
5751     {
5752       if (NS_KEYLOG)
5753         fprintf (stderr, "keyUp: passed test");
5754       ns_fake_keydown = YES;
5755       [self keyDown: theEvent];
5756     }
5757 }
5758 #endif
5759
5760
5761 /* <NSTextInput> implementation (called through super interpretKeyEvents:]). */
5762
5763
5764 /* <NSTextInput>: called when done composing;
5765    NOTE: also called when we delete over working text, followed immed.
5766          by doCommandBySelector: deleteBackward: */
5767 - (void)insertText: (id)aString
5768 {
5769   int code;
5770   int len = [(NSString *)aString length];
5771   int i;
5772
5773   if (NS_KEYLOG)
5774     NSLog (@"insertText '%@'\tlen = %d", aString, len);
5775   processingCompose = NO;
5776
5777   if (!emacs_event)
5778     return;
5779
5780   /* first, clear any working text */
5781   if (workingText != nil)
5782     [self deleteWorkingText];
5783
5784   /* now insert the string as keystrokes */
5785   for (i =0; i<len; i++)
5786     {
5787       code = [aString characterAtIndex: i];
5788       /* TODO: still need this? */
5789       if (code == 0x2DC)
5790         code = '~'; /* 0x7E */
5791       if (code != 32) /* Space */
5792         emacs_event->modifiers = 0;
5793       emacs_event->kind
5794         = code > 0xFF ? MULTIBYTE_CHAR_KEYSTROKE_EVENT : ASCII_KEYSTROKE_EVENT;
5795       emacs_event->code = code;
5796       EV_TRAILER ((id)nil);
5797     }
5798 }
5799
5800
5801 /* <NSTextInput>: inserts display of composing characters */
5802 - (void)setMarkedText: (id)aString selectedRange: (NSRange)selRange
5803 {
5804   NSString *str = [aString respondsToSelector: @selector (string)] ?
5805     [aString string] : aString;
5806   if (NS_KEYLOG)
5807     NSLog (@"setMarkedText '%@' len =%lu range %lu from %lu",
5808            str, (unsigned long)[str length],
5809            (unsigned long)selRange.length,
5810            (unsigned long)selRange.location);
5811
5812   if (workingText != nil)
5813     [self deleteWorkingText];
5814   if ([str length] == 0)
5815     return;
5816
5817   if (!emacs_event)
5818     return;
5819
5820   processingCompose = YES;
5821   workingText = [str copy];
5822   ns_working_text = build_string ([workingText UTF8String]);
5823
5824   emacs_event->kind = NS_TEXT_EVENT;
5825   emacs_event->code = KEY_NS_PUT_WORKING_TEXT;
5826   EV_TRAILER ((id)nil);
5827 }
5828
5829
5830 /* delete display of composing characters [not in <NSTextInput>] */
5831 - (void)deleteWorkingText
5832 {
5833   if (workingText == nil)
5834     return;
5835   if (NS_KEYLOG)
5836     NSLog(@"deleteWorkingText len =%lu\n", (unsigned long)[workingText length]);
5837   [workingText release];
5838   workingText = nil;
5839   processingCompose = NO;
5840
5841   if (!emacs_event)
5842     return;
5843
5844   emacs_event->kind = NS_TEXT_EVENT;
5845   emacs_event->code = KEY_NS_UNPUT_WORKING_TEXT;
5846   EV_TRAILER ((id)nil);
5847 }
5848
5849
5850 - (BOOL)hasMarkedText
5851 {
5852   return workingText != nil;
5853 }
5854
5855
5856 - (NSRange)markedRange
5857 {
5858   NSRange rng = workingText != nil
5859     ? NSMakeRange (0, [workingText length]) : NSMakeRange (NSNotFound, 0);
5860   if (NS_KEYLOG)
5861     NSLog (@"markedRange request");
5862   return rng;
5863 }
5864
5865
5866 - (void)unmarkText
5867 {
5868   if (NS_KEYLOG)
5869     NSLog (@"unmark (accept) text");
5870   [self deleteWorkingText];
5871   processingCompose = NO;
5872 }
5873
5874
5875 /* used to position char selection windows, etc. */
5876 - (NSRect)firstRectForCharacterRange: (NSRange)theRange
5877 {
5878   NSRect rect;
5879   NSPoint pt;
5880   struct window *win = XWINDOW (FRAME_SELECTED_WINDOW (emacsframe));
5881   if (NS_KEYLOG)
5882     NSLog (@"firstRectForCharRange request");
5883
5884   rect.size.width = theRange.length * FRAME_COLUMN_WIDTH (emacsframe);
5885   rect.size.height = FRAME_LINE_HEIGHT (emacsframe);
5886   pt.x = WINDOW_TEXT_TO_FRAME_PIXEL_X (win, win->phys_cursor.x);
5887   pt.y = WINDOW_TO_FRAME_PIXEL_Y (win, win->phys_cursor.y
5888                                        +FRAME_LINE_HEIGHT (emacsframe));
5889
5890   pt = [self convertPoint: pt toView: nil];
5891   pt = [[self window] convertBaseToScreen: pt];
5892   rect.origin = pt;
5893   return rect;
5894 }
5895
5896
5897 - (NSInteger)conversationIdentifier
5898 {
5899   return (NSInteger)self;
5900 }
5901
5902
5903 - (void)doCommandBySelector: (SEL)aSelector
5904 {
5905   if (NS_KEYLOG)
5906     NSLog (@"doCommandBySelector: %@", NSStringFromSelector (aSelector));
5907
5908   processingCompose = NO;
5909   if (aSelector == @selector (deleteBackward:))
5910     {
5911       /* happens when user backspaces over an ongoing composition:
5912          throw a 'delete' into the event queue */
5913       if (!emacs_event)
5914         return;
5915       emacs_event->kind = NON_ASCII_KEYSTROKE_EVENT;
5916       emacs_event->code = 0xFF08;
5917       EV_TRAILER ((id)nil);
5918     }
5919 }
5920
5921 - (NSArray *)validAttributesForMarkedText
5922 {
5923   static NSArray *arr = nil;
5924   if (arr == nil) arr = [NSArray new];
5925  /* [[NSArray arrayWithObject: NSUnderlineStyleAttributeName] retain]; */
5926   return arr;
5927 }
5928
5929 - (NSRange)selectedRange
5930 {
5931   if (NS_KEYLOG)
5932     NSLog (@"selectedRange request");
5933   return NSMakeRange (NSNotFound, 0);
5934 }
5935
5936 #if defined (NS_IMPL_COCOA) || GNUSTEP_GUI_MAJOR_VERSION > 0 || \
5937     GNUSTEP_GUI_MINOR_VERSION > 22
5938 - (NSUInteger)characterIndexForPoint: (NSPoint)thePoint
5939 #else
5940 - (unsigned int)characterIndexForPoint: (NSPoint)thePoint
5941 #endif
5942 {
5943   if (NS_KEYLOG)
5944     NSLog (@"characterIndexForPoint request");
5945   return 0;
5946 }
5947
5948 - (NSAttributedString *)attributedSubstringFromRange: (NSRange)theRange
5949 {
5950   static NSAttributedString *str = nil;
5951   if (str == nil) str = [NSAttributedString new];
5952   if (NS_KEYLOG)
5953     NSLog (@"attributedSubstringFromRange request");
5954   return str;
5955 }
5956
5957 /* End <NSTextInput> impl. */
5958 /*****************************************************************************/
5959
5960
5961 /* This is what happens when the user presses a mouse button.  */
5962 - (void)mouseDown: (NSEvent *)theEvent
5963 {
5964   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (emacsframe);
5965   NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil];
5966
5967   NSTRACE ("mouseDown");
5968
5969   [self deleteWorkingText];
5970
5971   if (!emacs_event)
5972     return;
5973
5974   dpyinfo->last_mouse_frame = emacsframe;
5975   /* appears to be needed to prevent spurious movement events generated on
5976      button clicks */
5977   emacsframe->mouse_moved = 0;
5978
5979   if ([theEvent type] == NSScrollWheel)
5980     {
5981       CGFloat delta = [theEvent deltaY];
5982       /* Mac notebooks send wheel events w/delta =0 when trackpad scrolling */
5983       if (delta == 0)
5984         {
5985           delta = [theEvent deltaX];
5986           if (delta == 0)
5987             {
5988               NSTRACE ("deltaIsZero");
5989               return;
5990             }
5991           emacs_event->kind = HORIZ_WHEEL_EVENT;
5992         }
5993       else
5994         emacs_event->kind = WHEEL_EVENT;
5995
5996       emacs_event->code = 0;
5997       emacs_event->modifiers = EV_MODIFIERS (theEvent) |
5998         ((delta > 0) ? up_modifier : down_modifier);
5999     }
6000   else
6001     {
6002       emacs_event->kind = MOUSE_CLICK_EVENT;
6003       emacs_event->code = EV_BUTTON (theEvent);
6004       emacs_event->modifiers = EV_MODIFIERS (theEvent)
6005                              | EV_UDMODIFIERS (theEvent);
6006     }
6007   XSETINT (emacs_event->x, lrint (p.x));
6008   XSETINT (emacs_event->y, lrint (p.y));
6009   EV_TRAILER (theEvent);
6010 }
6011
6012
6013 - (void)rightMouseDown: (NSEvent *)theEvent
6014 {
6015   NSTRACE ("rightMouseDown");
6016   [self mouseDown: theEvent];
6017 }
6018
6019
6020 - (void)otherMouseDown: (NSEvent *)theEvent
6021 {
6022   NSTRACE ("otherMouseDown");
6023   [self mouseDown: theEvent];
6024 }
6025
6026
6027 - (void)mouseUp: (NSEvent *)theEvent
6028 {
6029   NSTRACE ("mouseUp");
6030   [self mouseDown: theEvent];
6031 }
6032
6033
6034 - (void)rightMouseUp: (NSEvent *)theEvent
6035 {
6036   NSTRACE ("rightMouseUp");
6037   [self mouseDown: theEvent];
6038 }
6039
6040
6041 - (void)otherMouseUp: (NSEvent *)theEvent
6042 {
6043   NSTRACE ("otherMouseUp");
6044   [self mouseDown: theEvent];
6045 }
6046
6047
6048 - (void) scrollWheel: (NSEvent *)theEvent
6049 {
6050   NSTRACE ("scrollWheel");
6051   [self mouseDown: theEvent];
6052 }
6053
6054
6055 /* Tell emacs the mouse has moved. */
6056 - (void)mouseMoved: (NSEvent *)e
6057 {
6058   Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (emacsframe);
6059   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (emacsframe);
6060   Lisp_Object frame;
6061   NSPoint pt;
6062
6063 //  NSTRACE ("mouseMoved");
6064
6065   dpyinfo->last_mouse_movement_time = EV_TIMESTAMP (e);
6066   pt = [self convertPoint: [e locationInWindow] fromView: nil];
6067   dpyinfo->last_mouse_motion_x = pt.x;
6068   dpyinfo->last_mouse_motion_y = pt.y;
6069
6070   /* update any mouse face */
6071   if (hlinfo->mouse_face_hidden)
6072     {
6073       hlinfo->mouse_face_hidden = 0;
6074       clear_mouse_face (hlinfo);
6075     }
6076
6077   /* tooltip handling */
6078   previous_help_echo_string = help_echo_string;
6079   help_echo_string = Qnil;
6080
6081   if (!NILP (Vmouse_autoselect_window))
6082     {
6083       NSTRACE ("mouse_autoselect_window");
6084       static Lisp_Object last_mouse_window;
6085       Lisp_Object window
6086         = window_from_coordinates (emacsframe, pt.x, pt.y, 0, 0);
6087
6088       if (WINDOWP (window)
6089           && !EQ (window, last_mouse_window)
6090           && !EQ (window, selected_window)
6091           && (focus_follows_mouse
6092               || (EQ (XWINDOW (window)->frame,
6093                       XWINDOW (selected_window)->frame))))
6094         {
6095           NSTRACE ("in_window");
6096           emacs_event->kind = SELECT_WINDOW_EVENT;
6097           emacs_event->frame_or_window = window;
6098           EV_TRAILER2 (e);
6099         }
6100       /* Remember the last window where we saw the mouse.  */
6101       last_mouse_window = window;
6102     }
6103
6104   if (!note_mouse_movement (emacsframe, pt.x, pt.y))
6105     help_echo_string = previous_help_echo_string;
6106
6107   XSETFRAME (frame, emacsframe);
6108   if (!NILP (help_echo_string) || !NILP (previous_help_echo_string))
6109     {
6110       /* NOTE: help_echo_{window,pos,object} are set in xdisp.c
6111          (note_mouse_highlight), which is called through the
6112          note_mouse_movement () call above */
6113       any_help_event_p = YES;
6114       gen_help_event (help_echo_string, frame, help_echo_window,
6115                       help_echo_object, help_echo_pos);
6116     }
6117
6118   if (emacsframe->mouse_moved && send_appdefined)
6119     ns_send_appdefined (-1);
6120 }
6121
6122
6123 - (void)mouseDragged: (NSEvent *)e
6124 {
6125   NSTRACE ("mouseDragged");
6126   [self mouseMoved: e];
6127 }
6128
6129
6130 - (void)rightMouseDragged: (NSEvent *)e
6131 {
6132   NSTRACE ("rightMouseDragged");
6133   [self mouseMoved: e];
6134 }
6135
6136
6137 - (void)otherMouseDragged: (NSEvent *)e
6138 {
6139   NSTRACE ("otherMouseDragged");
6140   [self mouseMoved: e];
6141 }
6142
6143
6144 - (BOOL)windowShouldClose: (id)sender
6145 {
6146   NSEvent *e =[[self window] currentEvent];
6147
6148   NSTRACE ("windowShouldClose");
6149   windowClosing = YES;
6150   if (!emacs_event)
6151     return NO;
6152   emacs_event->kind = DELETE_WINDOW_EVENT;
6153   emacs_event->modifiers = 0;
6154   emacs_event->code = 0;
6155   EV_TRAILER (e);
6156   /* Don't close this window, let this be done from lisp code.  */
6157   return NO;
6158 }
6159
6160 - (void) updateFrameSize: (BOOL) delay;
6161 {
6162   NSWindow *window = [self window];
6163   NSRect wr = [window frame];
6164   int extra = 0;
6165   int oldc = cols, oldr = rows;
6166   int oldw = FRAME_PIXEL_WIDTH (emacsframe);
6167   int oldh = FRAME_PIXEL_HEIGHT (emacsframe);
6168   int neww, newh;
6169
6170   NSTRACE ("updateFrameSize");
6171   NSTRACE_SIZE ("Original size", NSMakeSize (oldw, oldh));
6172   NSTRACE_RECT ("Original frame", wr);
6173   NSTRACE_MSG  ("Original columns: %d", cols);
6174   NSTRACE_MSG  ("Original rows: %d", rows);
6175
6176   if (! [self isFullscreen])
6177     {
6178 #ifdef NS_IMPL_GNUSTEP
6179       // GNUstep does not always update the tool bar height.  Force it.
6180       if (toolbar && [toolbar isVisible])
6181           update_frame_tool_bar (emacsframe);
6182 #endif
6183
6184       extra = FRAME_NS_TITLEBAR_HEIGHT (emacsframe)
6185         + FRAME_TOOLBAR_HEIGHT (emacsframe);
6186     }
6187
6188   if (wait_for_tool_bar)
6189     {
6190       if (FRAME_TOOLBAR_HEIGHT (emacsframe) == 0)
6191         {
6192           NSTRACE_MSG ("Waiting for toolbar");
6193           return;
6194         }
6195       wait_for_tool_bar = NO;
6196     }
6197
6198   neww = (int)wr.size.width - emacsframe->border_width;
6199   newh = (int)wr.size.height - extra;
6200
6201   NSTRACE_SIZE ("New size", NSMakeSize (neww, newh));
6202   NSTRACE_MSG ("tool_bar_height: %d", emacsframe->tool_bar_height);
6203
6204   cols = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (emacsframe, neww);
6205   rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (emacsframe, newh);
6206
6207   if (cols < MINWIDTH)
6208     cols = MINWIDTH;
6209
6210   if (rows < MINHEIGHT)
6211     rows = MINHEIGHT;
6212
6213   NSTRACE_MSG  ("New columns: %d", cols);
6214   NSTRACE_MSG  ("New rows: %d", rows);
6215
6216   if (oldr != rows || oldc != cols || neww != oldw || newh != oldh)
6217     {
6218       NSView *view = FRAME_NS_VIEW (emacsframe);
6219       NSWindow *win = [view window];
6220
6221       change_frame_size (emacsframe,
6222                          FRAME_PIXEL_TO_TEXT_WIDTH (emacsframe, neww),
6223                          FRAME_PIXEL_TO_TEXT_HEIGHT (emacsframe, newh),
6224                          0, delay, 0, 1);
6225       SET_FRAME_GARBAGED (emacsframe);
6226       cancel_mouse_face (emacsframe);
6227
6228       wr = NSMakeRect (0, 0, neww, newh);
6229       NSTRACE_RECT ("setFrame", wr);
6230       [view setFrame: wr];
6231       [self windowDidMove:nil];   // Update top/left.
6232     }
6233   else
6234     {
6235       NSTRACE_MSG ("No change");
6236     }
6237 }
6238
6239 - (NSSize)windowWillResize: (NSWindow *)sender toSize: (NSSize)frameSize
6240 /* normalize frame to gridded text size */
6241 {
6242   int extra = 0;
6243
6244   NSTRACE ("windowWillResize: toSize: " NSTRACE_FMT_SIZE,
6245            NSTRACE_ARG_SIZE (frameSize));
6246   NSTRACE_RECT   ("[sender frame]", [sender frame]);
6247   NSTRACE_FSTYPE ("fs_state", fs_state);
6248
6249   if (fs_state == FULLSCREEN_MAXIMIZED
6250       && (maximized_width != (int)frameSize.width
6251           || maximized_height != (int)frameSize.height))
6252     [self setFSValue: FULLSCREEN_NONE];
6253   else if (fs_state == FULLSCREEN_WIDTH
6254            && maximized_width != (int)frameSize.width)
6255     [self setFSValue: FULLSCREEN_NONE];
6256   else if (fs_state == FULLSCREEN_HEIGHT
6257            && maximized_height != (int)frameSize.height)
6258     [self setFSValue: FULLSCREEN_NONE];
6259
6260   if (fs_state == FULLSCREEN_NONE)
6261     maximized_width = maximized_height = -1;
6262
6263   if (! [self isFullscreen])
6264     {
6265       extra = FRAME_NS_TITLEBAR_HEIGHT (emacsframe)
6266         + FRAME_TOOLBAR_HEIGHT (emacsframe);
6267     }
6268
6269   cols = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (emacsframe, frameSize.width);
6270   if (cols < MINWIDTH)
6271     cols = MINWIDTH;
6272
6273   rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (emacsframe,
6274                                            frameSize.height - extra);
6275   if (rows < MINHEIGHT)
6276     rows = MINHEIGHT;
6277 #ifdef NS_IMPL_COCOA
6278   {
6279     /* this sets window title to have size in it; the wm does this under GS */
6280     NSRect r = [[self window] frame];
6281     if (r.size.height == frameSize.height && r.size.width == frameSize.width)
6282       {
6283         if (old_title != 0)
6284           {
6285             xfree (old_title);
6286             old_title = 0;
6287           }
6288       }
6289     else if (fs_state == FULLSCREEN_NONE && ! maximizing_resize)
6290       {
6291         char *size_title;
6292         NSWindow *window = [self window];
6293         if (old_title == 0)
6294           {
6295             char *t = strdup ([[[self window] title] UTF8String]);
6296             char *pos = strstr (t, "  —  ");
6297             if (pos)
6298               *pos = '\0';
6299             old_title = t;
6300           }
6301         size_title = xmalloc (strlen (old_title) + 40);
6302         esprintf (size_title, "%s  —  (%d x %d)", old_title, cols, rows);
6303         [window setTitle: [NSString stringWithUTF8String: size_title]];
6304         [window display];
6305         xfree (size_title);
6306       }
6307   }
6308 #endif /* NS_IMPL_COCOA */
6309
6310   NSTRACE_MSG ("cols: %d  rows: %d", cols, rows);
6311
6312   /* Restrict the new size to the text gird.
6313
6314      Don't restict the width if the user only adjusted the height, and
6315      vice versa.  (Without this, the frame would shrink, and move
6316      slightly, if the window was resized by dragging one of its
6317      borders.) */
6318   if (!frame_resize_pixelwise)
6319     {
6320       NSRect r = [[self window] frame];
6321
6322       if (r.size.width != frameSize.width)
6323         {
6324           frameSize.width =
6325             FRAME_TEXT_COLS_TO_PIXEL_WIDTH  (emacsframe, cols);
6326         }
6327
6328       if (r.size.height != frameSize.height)
6329         {
6330           frameSize.height =
6331             FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (emacsframe, rows) + extra;
6332         }
6333     }
6334
6335   NSTRACE_RETURN_SIZE (frameSize);
6336
6337   return frameSize;
6338 }
6339
6340
6341 - (void)windowDidResize: (NSNotification *)notification
6342 {
6343   NSTRACE ("windowDidResize");
6344
6345   if (emacsframe->output_data.ns->in_animation)
6346     {
6347       NSTRACE_MSG ("Ignored (in animation)");
6348       return;
6349     }
6350
6351   if (! [self fsIsNative])
6352     {
6353       NSWindow *theWindow = [notification object];
6354       /* We can get notification on the non-FS window when in
6355          fullscreen mode.  */
6356       if ([self window] != theWindow) return;
6357     }
6358
6359   NSTRACE_RECT ("frame", [[notification object] frame]);
6360
6361 #ifdef NS_IMPL_GNUSTEP
6362   NSWindow *theWindow = [notification object];
6363
6364    /* In GNUstep, at least currently, it's possible to get a didResize
6365       without getting a willResize.. therefore we need to act as if we got
6366       the willResize now */
6367   NSSize sz = [theWindow frame].size;
6368   sz = [self windowWillResize: theWindow toSize: sz];
6369 #endif /* NS_IMPL_GNUSTEP */
6370
6371   if (cols > 0 && rows > 0)
6372     {
6373       [self updateFrameSize: YES];
6374     }
6375
6376   ns_send_appdefined (-1);
6377 }
6378
6379 #ifdef NS_IMPL_COCOA
6380 - (void)viewDidEndLiveResize
6381 {
6382   [super viewDidEndLiveResize];
6383   if (old_title != 0)
6384     {
6385       [[self window] setTitle: [NSString stringWithUTF8String: old_title]];
6386       xfree (old_title);
6387       old_title = 0;
6388     }
6389   maximizing_resize = NO;
6390 }
6391 #endif /* NS_IMPL_COCOA */
6392
6393
6394 - (void)windowDidBecomeKey: (NSNotification *)notification
6395 /* cf. x_detect_focus_change(), x_focus_changed(), x_new_focus_frame() */
6396 {
6397   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (emacsframe);
6398   struct frame *old_focus = dpyinfo->x_focus_frame;
6399
6400   NSTRACE ("windowDidBecomeKey");
6401
6402   if (emacsframe != old_focus)
6403     dpyinfo->x_focus_frame = emacsframe;
6404
6405   ns_frame_rehighlight (emacsframe);
6406
6407   if (emacs_event)
6408     {
6409       emacs_event->kind = FOCUS_IN_EVENT;
6410       EV_TRAILER ((id)nil);
6411     }
6412 }
6413
6414
6415 - (void)windowDidResignKey: (NSNotification *)notification
6416 /* cf. x_detect_focus_change(), x_focus_changed(), x_new_focus_frame() */
6417 {
6418   struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (emacsframe);
6419   BOOL is_focus_frame = dpyinfo->x_focus_frame == emacsframe;
6420   NSTRACE ("windowDidResignKey");
6421
6422   if (is_focus_frame)
6423     dpyinfo->x_focus_frame = 0;
6424
6425   emacsframe->mouse_moved = 0;
6426   ns_frame_rehighlight (emacsframe);
6427
6428   /* FIXME: for some reason needed on second and subsequent clicks away
6429             from sole-frame Emacs to get hollow box to show */
6430   if (!windowClosing && [[self window] isVisible] == YES)
6431     {
6432       x_update_cursor (emacsframe, 1);
6433       x_set_frame_alpha (emacsframe);
6434     }
6435
6436   if (any_help_event_p)
6437     {
6438       Lisp_Object frame;
6439       XSETFRAME (frame, emacsframe);
6440       help_echo_string = Qnil;
6441       gen_help_event (Qnil, frame, Qnil, Qnil, 0);
6442     }
6443
6444   if (emacs_event && is_focus_frame)
6445     {
6446       [self deleteWorkingText];
6447       emacs_event->kind = FOCUS_OUT_EVENT;
6448       EV_TRAILER ((id)nil);
6449     }
6450 }
6451
6452
6453 - (void)windowWillMiniaturize: sender
6454 {
6455   NSTRACE ("windowWillMiniaturize");
6456 }
6457
6458
6459 - (BOOL)isFlipped
6460 {
6461   return YES;
6462 }
6463
6464
6465 - (BOOL)isOpaque
6466 {
6467   return NO;
6468 }
6469
6470
6471 - initFrameFromEmacs: (struct frame *)f
6472 {
6473   NSRect r, wr;
6474   Lisp_Object tem;
6475   NSWindow *win;
6476   NSColor *col;
6477   NSString *name;
6478
6479   NSTRACE ("initFrameFromEmacs");
6480
6481   windowClosing = NO;
6482   processingCompose = NO;
6483   scrollbarsNeedingUpdate = 0;
6484   fs_state = FULLSCREEN_NONE;
6485   fs_before_fs = next_maximized = -1;
6486 #ifdef HAVE_NATIVE_FS
6487   fs_is_native = ns_use_native_fullscreen;
6488 #else
6489   fs_is_native = NO;
6490 #endif
6491   maximized_width = maximized_height = -1;
6492   nonfs_window = nil;
6493
6494 /*fprintf (stderr,"init with %d, %d\n",f->text_cols, f->text_lines); */
6495
6496   ns_userRect = NSMakeRect (0, 0, 0, 0);
6497   r = NSMakeRect (0, 0, FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, f->text_cols),
6498                  FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, f->text_lines));
6499   [self initWithFrame: r];
6500   [self setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable];
6501
6502   FRAME_NS_VIEW (f) = self;
6503   emacsframe = f;
6504 #ifdef NS_IMPL_COCOA
6505   old_title = 0;
6506   maximizing_resize = NO;
6507 #endif
6508
6509   win = [[EmacsWindow alloc]
6510             initWithContentRect: r
6511                       styleMask: (NSResizableWindowMask |
6512 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
6513                                   NSTitledWindowMask |
6514 #endif
6515                                   NSMiniaturizableWindowMask |
6516                                   NSClosableWindowMask)
6517                         backing: NSBackingStoreBuffered
6518                           defer: YES];
6519
6520 #ifdef HAVE_NATIVE_FS
6521     [win setCollectionBehavior:NSWindowCollectionBehaviorFullScreenPrimary];
6522 #endif
6523
6524   wr = [win frame];
6525   bwidth = f->border_width = wr.size.width - r.size.width;
6526   tibar_height = FRAME_NS_TITLEBAR_HEIGHT (f) = wr.size.height - r.size.height;
6527
6528   [win setAcceptsMouseMovedEvents: YES];
6529   [win setDelegate: self];
6530 #if !defined (NS_IMPL_COCOA) || \
6531   MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_9
6532   [win useOptimizedDrawing: YES];
6533 #endif
6534
6535   [[win contentView] addSubview: self];
6536
6537   if (ns_drag_types)
6538     [self registerForDraggedTypes: ns_drag_types];
6539
6540   tem = f->name;
6541   name = [NSString stringWithUTF8String:
6542                    NILP (tem) ? "Emacs" : SSDATA (tem)];
6543   [win setTitle: name];
6544
6545   /* toolbar support */
6546   toolbar = [[EmacsToolbar alloc] initForView: self withIdentifier:
6547                          [NSString stringWithFormat: @"Emacs Frame %d",
6548                                    ns_window_num]];
6549   [win setToolbar: toolbar];
6550   [toolbar setVisible: NO];
6551
6552   /* Don't set frame garbaged until tool bar is up to date?
6553      This avoids an extra clear and redraw (flicker) at frame creation.  */
6554   if (FRAME_EXTERNAL_TOOL_BAR (f)) wait_for_tool_bar = YES;
6555   else wait_for_tool_bar = NO;
6556
6557
6558 #ifdef NS_IMPL_COCOA
6559   {
6560     NSButton *toggleButton;
6561   toggleButton = [win standardWindowButton: NSWindowToolbarButton];
6562   [toggleButton setTarget: self];
6563   [toggleButton setAction: @selector (toggleToolbar: )];
6564   }
6565 #endif
6566   FRAME_TOOLBAR_HEIGHT (f) = 0;
6567
6568   tem = f->icon_name;
6569   if (!NILP (tem))
6570     [win setMiniwindowTitle:
6571            [NSString stringWithUTF8String: SSDATA (tem)]];
6572
6573   {
6574     NSScreen *screen = [win screen];
6575
6576     if (screen != 0)
6577       {
6578         NSPoint pt = NSMakePoint
6579           (IN_BOUND (-SCREENMAX, f->left_pos, SCREENMAX),
6580            IN_BOUND (-SCREENMAX,
6581                      [screen frame].size.height - NS_TOP_POS (f), SCREENMAX));
6582
6583         NSTRACE_POINT ("setFrameTopLeftPoint", pt);
6584
6585         [win setFrameTopLeftPoint: pt];
6586
6587         NSTRACE_RECT ("new frame", [win frame]);
6588       }
6589   }
6590
6591   [win makeFirstResponder: self];
6592
6593   col = ns_lookup_indexed_color (NS_FACE_BACKGROUND
6594                                   (FRAME_DEFAULT_FACE (emacsframe)), emacsframe);
6595   [win setBackgroundColor: col];
6596   if ([col alphaComponent] != (EmacsCGFloat) 1.0)
6597     [win setOpaque: NO];
6598
6599 #if !defined (NS_IMPL_COCOA) || \
6600   MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_9
6601   [self allocateGState];
6602 #endif
6603   [NSApp registerServicesMenuSendTypes: ns_send_types
6604                            returnTypes: nil];
6605
6606   ns_window_num++;
6607   return self;
6608 }
6609
6610
6611 - (void)windowDidMove: sender
6612 {
6613   NSWindow *win = [self window];
6614   NSRect r = [win frame];
6615   NSArray *screens = [NSScreen screens];
6616   NSScreen *screen = [screens objectAtIndex: 0];
6617
6618   NSTRACE ("windowDidMove");
6619
6620   if (!emacsframe->output_data.ns)
6621     return;
6622   if (screen != nil)
6623     {
6624       emacsframe->left_pos = r.origin.x;
6625       emacsframe->top_pos =
6626         [screen frame].size.height - (r.origin.y + r.size.height);
6627     }
6628 }
6629
6630
6631 /* Called AFTER method below, but before our windowWillResize call there leads
6632    to windowDidResize -> x_set_window_size.  Update emacs' notion of frame
6633    location so set_window_size moves the frame. */
6634 - (BOOL)windowShouldZoom: (NSWindow *)sender toFrame: (NSRect)newFrame
6635 {
6636   NSTRACE (("[windowShouldZoom:win toFrame:" NSTRACE_FMT_RECT "]"
6637             NSTRACE_FMT_RETURN "YES"),
6638            NSTRACE_ARG_RECT (newFrame));
6639
6640   emacsframe->output_data.ns->zooming = 1;
6641   return YES;
6642 }
6643
6644
6645 /* Override to do something slightly nonstandard, but nice.  First click on
6646    zoom button will zoom vertically.  Second will zoom completely.  Third
6647    returns to original. */
6648 - (NSRect)windowWillUseStandardFrame:(NSWindow *)sender
6649                         defaultFrame:(NSRect)defaultFrame
6650 {
6651   // TODO: Rename to "currentFrame" and assign "result" properly in
6652   // all paths.
6653   NSRect result = [sender frame];
6654
6655   NSTRACE (("[windowWillUseStandardFrame: defaultFrame:"
6656             NSTRACE_FMT_RECT "]"),
6657            NSTRACE_ARG_RECT (defaultFrame));
6658   NSTRACE_FSTYPE ("fs_state", fs_state);
6659   NSTRACE_FSTYPE ("fs_before_fs", fs_before_fs);
6660   NSTRACE_FSTYPE ("next_maximized", next_maximized);
6661   NSTRACE_RECT   ("ns_userRect", ns_userRect);
6662   NSTRACE_RECT   ("[sender frame]", [sender frame]);
6663
6664   if (fs_before_fs != -1) /* Entering fullscreen */
6665     {
6666       NSTRACE_MSG ("Entering fullscreen");
6667       result = defaultFrame;
6668     }
6669   else
6670     {
6671       // Save the window size and position (frame) before the resize.
6672       if (fs_state != FULLSCREEN_MAXIMIZED
6673           && fs_state != FULLSCREEN_WIDTH)
6674         {
6675           ns_userRect.size.width = result.size.width;
6676           ns_userRect.origin.x   = result.origin.x;
6677         }
6678
6679       if (fs_state != FULLSCREEN_MAXIMIZED
6680           && fs_state != FULLSCREEN_HEIGHT)
6681         {
6682           ns_userRect.size.height = result.size.height;
6683           ns_userRect.origin.y    = result.origin.y;
6684         }
6685
6686       NSTRACE_RECT ("ns_userRect (2)", ns_userRect);
6687
6688       if (next_maximized == FULLSCREEN_HEIGHT
6689           || (next_maximized == -1
6690               && abs ((int)(defaultFrame.size.height - result.size.height))
6691               > FRAME_LINE_HEIGHT (emacsframe)))
6692         {
6693           /* first click */
6694           NSTRACE_MSG ("FULLSCREEN_HEIGHT");
6695           maximized_height = result.size.height = defaultFrame.size.height;
6696           maximized_width = -1;
6697           result.origin.y = defaultFrame.origin.y;
6698           if (ns_userRect.size.height != 0)
6699             {
6700               result.origin.x = ns_userRect.origin.x;
6701               result.size.width = ns_userRect.size.width;
6702             }
6703           [self setFSValue: FULLSCREEN_HEIGHT];
6704 #ifdef NS_IMPL_COCOA
6705           maximizing_resize = YES;
6706 #endif
6707         }
6708       else if (next_maximized == FULLSCREEN_WIDTH)
6709         {
6710           NSTRACE_MSG ("FULLSCREEN_WIDTH");
6711           maximized_width = result.size.width = defaultFrame.size.width;
6712           maximized_height = -1;
6713           result.origin.x = defaultFrame.origin.x;
6714           if (ns_userRect.size.width != 0)
6715             {
6716               result.origin.y = ns_userRect.origin.y;
6717               result.size.height = ns_userRect.size.height;
6718             }
6719           [self setFSValue: FULLSCREEN_WIDTH];
6720         }
6721       else if (next_maximized == FULLSCREEN_MAXIMIZED
6722                || (next_maximized == -1
6723                    && abs ((int)(defaultFrame.size.width - result.size.width))
6724                    > FRAME_COLUMN_WIDTH (emacsframe)))
6725         {
6726           NSTRACE_MSG ("FULLSCREEN_MAXIMIZED");
6727
6728           result = defaultFrame;  /* second click */
6729           maximized_width = result.size.width;
6730           maximized_height = result.size.height;
6731           [self setFSValue: FULLSCREEN_MAXIMIZED];
6732 #ifdef NS_IMPL_COCOA
6733           maximizing_resize = YES;
6734 #endif
6735         }
6736       else
6737         {
6738           /* restore */
6739           NSTRACE_MSG ("Restore");
6740           result = ns_userRect.size.height ? ns_userRect : result;
6741           NSTRACE_RECT ("restore (2)", result);
6742           ns_userRect = NSMakeRect (0, 0, 0, 0);
6743 #ifdef NS_IMPL_COCOA
6744           maximizing_resize = fs_state != FULLSCREEN_NONE;
6745 #endif
6746           [self setFSValue: FULLSCREEN_NONE];
6747           maximized_width = maximized_height = -1;
6748         }
6749     }
6750
6751   if (fs_before_fs == -1) next_maximized = -1;
6752
6753   NSTRACE_RECT   ("Final ns_userRect", ns_userRect);
6754   NSTRACE_MSG    ("Final maximized_width: %d", maximized_width);
6755   NSTRACE_MSG    ("Final maximized_height: %d", maximized_height);
6756   NSTRACE_FSTYPE ("Final next_maximized", next_maximized);
6757
6758   [self windowWillResize: sender toSize: result.size];
6759
6760   NSTRACE_RETURN_RECT (result);
6761
6762   return result;
6763 }
6764
6765
6766 - (void)windowDidDeminiaturize: sender
6767 {
6768   NSTRACE ("windowDidDeminiaturize");
6769   if (!emacsframe->output_data.ns)
6770     return;
6771
6772   SET_FRAME_ICONIFIED (emacsframe, 0);
6773   SET_FRAME_VISIBLE (emacsframe, 1);
6774   windows_or_buffers_changed = 63;
6775
6776   if (emacs_event)
6777     {
6778       emacs_event->kind = DEICONIFY_EVENT;
6779       EV_TRAILER ((id)nil);
6780     }
6781 }
6782
6783
6784 - (void)windowDidExpose: sender
6785 {
6786   NSTRACE ("windowDidExpose");
6787   if (!emacsframe->output_data.ns)
6788     return;
6789
6790   SET_FRAME_VISIBLE (emacsframe, 1);
6791   SET_FRAME_GARBAGED (emacsframe);
6792
6793   if (send_appdefined)
6794     ns_send_appdefined (-1);
6795 }
6796
6797
6798 - (void)windowDidMiniaturize: sender
6799 {
6800   NSTRACE ("windowDidMiniaturize");
6801   if (!emacsframe->output_data.ns)
6802     return;
6803
6804   SET_FRAME_ICONIFIED (emacsframe, 1);
6805   SET_FRAME_VISIBLE (emacsframe, 0);
6806
6807   if (emacs_event)
6808     {
6809       emacs_event->kind = ICONIFY_EVENT;
6810       EV_TRAILER ((id)nil);
6811     }
6812 }
6813
6814 #ifdef HAVE_NATIVE_FS
6815 - (NSApplicationPresentationOptions)window:(NSWindow *)window
6816       willUseFullScreenPresentationOptions:
6817   (NSApplicationPresentationOptions)proposedOptions
6818 {
6819   return proposedOptions|NSApplicationPresentationAutoHideToolbar;
6820 }
6821 #endif
6822
6823 - (void)windowWillEnterFullScreen:(NSNotification *)notification
6824 {
6825   NSTRACE ("windowWillEnterFullScreen");
6826   fs_before_fs = fs_state;
6827 }
6828
6829 - (void)windowDidEnterFullScreen:(NSNotification *)notification
6830 {
6831   NSTRACE ("windowDidEnterFullScreen");
6832   [self setFSValue: FULLSCREEN_BOTH];
6833   if (! [self fsIsNative])
6834     {
6835       [self windowDidBecomeKey:notification];
6836       [nonfs_window orderOut:self];
6837     }
6838   else
6839     {
6840       BOOL tbar_visible = FRAME_EXTERNAL_TOOL_BAR (emacsframe) ? YES : NO;
6841 #ifdef NS_IMPL_COCOA
6842 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
6843       unsigned val = (unsigned)[NSApp presentationOptions];
6844
6845       // OSX 10.7 bug fix, the menu won't appear without this.
6846       // val is non-zero on other OSX versions.
6847       if (val == 0)
6848         {
6849           NSApplicationPresentationOptions options
6850             = NSApplicationPresentationAutoHideDock
6851             | NSApplicationPresentationAutoHideMenuBar
6852             | NSApplicationPresentationFullScreen
6853             | NSApplicationPresentationAutoHideToolbar;
6854
6855           [NSApp setPresentationOptions: options];
6856         }
6857 #endif
6858 #endif
6859       [toolbar setVisible:tbar_visible];
6860     }
6861 }
6862
6863 - (void)windowWillExitFullScreen:(NSNotification *)notification
6864 {
6865   NSTRACE ("windowWillExitFullScreen");
6866
6867   if (next_maximized != -1)
6868     fs_before_fs = next_maximized;
6869 }
6870
6871 - (void)windowDidExitFullScreen:(NSNotification *)notification
6872 {
6873   NSTRACE ("windowDidExitFullScreen");
6874
6875   [self setFSValue: fs_before_fs];
6876   fs_before_fs = -1;
6877 #ifdef HAVE_NATIVE_FS
6878   [self updateCollectionBehavior];
6879 #endif
6880   if (FRAME_EXTERNAL_TOOL_BAR (emacsframe))
6881     {
6882       [toolbar setVisible:YES];
6883       update_frame_tool_bar (emacsframe);
6884       [self updateFrameSize:YES];
6885       [[self window] display];
6886     }
6887   else
6888     [toolbar setVisible:NO];
6889
6890   if (next_maximized != -1)
6891     [[self window] performZoom:self];
6892 }
6893
6894 - (BOOL)fsIsNative
6895 {
6896   return fs_is_native;
6897 }
6898
6899 - (BOOL)isFullscreen
6900 {
6901   if (! fs_is_native) return nonfs_window != nil;
6902 #ifdef HAVE_NATIVE_FS
6903   return ([[self window] styleMask] & NSFullScreenWindowMask) != 0;
6904 #else
6905   return NO;
6906 #endif
6907 }
6908
6909 #ifdef HAVE_NATIVE_FS
6910 - (void)updateCollectionBehavior
6911 {
6912   if (! [self isFullscreen])
6913     {
6914       NSWindow *win = [self window];
6915       NSWindowCollectionBehavior b = [win collectionBehavior];
6916       if (ns_use_native_fullscreen)
6917         b |= NSWindowCollectionBehaviorFullScreenPrimary;
6918       else
6919         b &= ~NSWindowCollectionBehaviorFullScreenPrimary;
6920
6921       [win setCollectionBehavior: b];
6922       fs_is_native = ns_use_native_fullscreen;
6923     }
6924 }
6925 #endif
6926
6927 - (void)toggleFullScreen: (id)sender
6928 {
6929   NSWindow *w, *fw;
6930   BOOL onFirstScreen;
6931   struct frame *f;
6932   NSRect r, wr;
6933   NSColor *col;
6934
6935   NSTRACE ("toggleFullScreen");
6936
6937   if (fs_is_native)
6938     {
6939 #ifdef HAVE_NATIVE_FS
6940       [[self window] toggleFullScreen:sender];
6941 #endif
6942       return;
6943     }
6944
6945   w = [self window];
6946   onFirstScreen = [[w screen] isEqual:[[NSScreen screens] objectAtIndex:0]];
6947   f = emacsframe;
6948   wr = [w frame];
6949   col = ns_lookup_indexed_color (NS_FACE_BACKGROUND
6950                                  (FRAME_DEFAULT_FACE (f)),
6951                                  f);
6952
6953   if (fs_state != FULLSCREEN_BOTH)
6954     {
6955       NSScreen *screen = [w screen];
6956
6957 #if defined (NS_IMPL_COCOA) && \
6958   MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_9
6959       /* Hide ghost menu bar on secondary monitor? */
6960       if (! onFirstScreen)
6961         onFirstScreen = [NSScreen screensHaveSeparateSpaces];
6962 #endif
6963       /* Hide dock and menubar if we are on the primary screen.  */
6964       if (onFirstScreen)
6965         {
6966 #ifdef NS_IMPL_COCOA
6967           NSApplicationPresentationOptions options
6968             = NSApplicationPresentationAutoHideDock
6969             | NSApplicationPresentationAutoHideMenuBar;
6970
6971           [NSApp setPresentationOptions: options];
6972 #else
6973           [NSMenu setMenuBarVisible:NO];
6974 #endif
6975         }
6976
6977       fw = [[EmacsFSWindow alloc]
6978                        initWithContentRect:[w contentRectForFrameRect:wr]
6979                                  styleMask:NSBorderlessWindowMask
6980                                    backing:NSBackingStoreBuffered
6981                                      defer:YES
6982                                     screen:screen];
6983
6984       [fw setContentView:[w contentView]];
6985       [fw setTitle:[w title]];
6986       [fw setDelegate:self];
6987       [fw setAcceptsMouseMovedEvents: YES];
6988 #if !defined (NS_IMPL_COCOA) || \
6989   MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_9
6990       [fw useOptimizedDrawing: YES];
6991 #endif
6992       [fw setBackgroundColor: col];
6993       if ([col alphaComponent] != (EmacsCGFloat) 1.0)
6994         [fw setOpaque: NO];
6995
6996       f->border_width = 0;
6997       FRAME_NS_TITLEBAR_HEIGHT (f) = 0;
6998       tobar_height = FRAME_TOOLBAR_HEIGHT (f);
6999       FRAME_TOOLBAR_HEIGHT (f) = 0;
7000
7001       nonfs_window = w;
7002
7003       [self windowWillEnterFullScreen:nil];
7004       [fw makeKeyAndOrderFront:NSApp];
7005       [fw makeFirstResponder:self];
7006       [w orderOut:self];
7007       r = [fw frameRectForContentRect:[screen frame]];
7008       [fw setFrame: r display:YES animate:ns_use_fullscreen_animation];
7009       [self windowDidEnterFullScreen:nil];
7010       [fw display];
7011     }
7012   else
7013     {
7014       fw = w;
7015       w = nonfs_window;
7016       nonfs_window = nil;
7017
7018       if (onFirstScreen)
7019         {
7020 #ifdef NS_IMPL_COCOA
7021           [NSApp setPresentationOptions: NSApplicationPresentationDefault];
7022 #else
7023           [NSMenu setMenuBarVisible:YES];
7024 #endif
7025         }
7026
7027       [w setContentView:[fw contentView]];
7028       [w setBackgroundColor: col];
7029       if ([col alphaComponent] != (EmacsCGFloat) 1.0)
7030         [w setOpaque: NO];
7031
7032       f->border_width = bwidth;
7033       FRAME_NS_TITLEBAR_HEIGHT (f) = tibar_height;
7034       if (FRAME_EXTERNAL_TOOL_BAR (f))
7035         FRAME_TOOLBAR_HEIGHT (f) = tobar_height;
7036
7037       [self windowWillExitFullScreen:nil];
7038       [fw setFrame: [w frame] display:YES animate:ns_use_fullscreen_animation];
7039       [fw close];
7040       [w makeKeyAndOrderFront:NSApp];
7041       [self windowDidExitFullScreen:nil];
7042       [self updateFrameSize:YES];
7043     }
7044 }
7045
7046 - (void)handleFS
7047 {
7048   NSTRACE ("handleFS");
7049
7050   if (fs_state != emacsframe->want_fullscreen)
7051     {
7052       if (fs_state == FULLSCREEN_BOTH)
7053         {
7054           NSTRACE_MSG ("fs_state == FULLSCREEN_BOTH");
7055           [self toggleFullScreen:self];
7056         }
7057
7058       switch (emacsframe->want_fullscreen)
7059         {
7060         case FULLSCREEN_BOTH:
7061           NSTRACE_MSG ("FULLSCREEN_BOTH");
7062           [self toggleFullScreen:self];
7063           break;
7064         case FULLSCREEN_WIDTH:
7065           NSTRACE_MSG ("FULLSCREEN_WIDTH");
7066           next_maximized = FULLSCREEN_WIDTH;
7067           if (fs_state != FULLSCREEN_BOTH)
7068             [[self window] performZoom:self];
7069           break;
7070         case FULLSCREEN_HEIGHT:
7071           NSTRACE_MSG ("FULLSCREEN_HEIGHT");
7072           next_maximized = FULLSCREEN_HEIGHT;
7073           if (fs_state != FULLSCREEN_BOTH)
7074             [[self window] performZoom:self];
7075           break;
7076         case FULLSCREEN_MAXIMIZED:
7077           NSTRACE_MSG ("FULLSCREEN_MAXIMIZED");
7078           next_maximized = FULLSCREEN_MAXIMIZED;
7079           if (fs_state != FULLSCREEN_BOTH)
7080             [[self window] performZoom:self];
7081           break;
7082         case FULLSCREEN_NONE:
7083           NSTRACE_MSG ("FULLSCREEN_NONE");
7084           if (fs_state != FULLSCREEN_BOTH)
7085             {
7086               next_maximized = FULLSCREEN_NONE;
7087               [[self window] performZoom:self];
7088             }
7089           break;
7090         }
7091
7092       emacsframe->want_fullscreen = FULLSCREEN_NONE;
7093     }
7094
7095 }
7096
7097 - (void) setFSValue: (int)value
7098 {
7099   NSTRACE ("setFSValue");
7100   NSTRACE_FSTYPE ("value", value);
7101
7102   Lisp_Object lval = Qnil;
7103   switch (value)
7104     {
7105     case FULLSCREEN_BOTH:
7106       lval = Qfullboth;
7107       break;
7108     case FULLSCREEN_WIDTH:
7109       lval = Qfullwidth;
7110       break;
7111     case FULLSCREEN_HEIGHT:
7112       lval = Qfullheight;
7113       break;
7114     case FULLSCREEN_MAXIMIZED:
7115       lval = Qmaximized;
7116       break;
7117     }
7118   store_frame_param (emacsframe, Qfullscreen, lval);
7119   fs_state = value;
7120 }
7121
7122 - (void)mouseEntered: (NSEvent *)theEvent
7123 {
7124   NSTRACE ("mouseEntered");
7125   if (emacsframe)
7126     FRAME_DISPLAY_INFO (emacsframe)->last_mouse_movement_time
7127       = EV_TIMESTAMP (theEvent);
7128 }
7129
7130
7131 - (void)mouseExited: (NSEvent *)theEvent
7132 {
7133   Mouse_HLInfo *hlinfo = emacsframe ? MOUSE_HL_INFO (emacsframe) : NULL;
7134
7135   NSTRACE ("mouseExited");
7136
7137   if (!hlinfo)
7138     return;
7139
7140   FRAME_DISPLAY_INFO (emacsframe)->last_mouse_movement_time
7141     = EV_TIMESTAMP (theEvent);
7142
7143   if (emacsframe == hlinfo->mouse_face_mouse_frame)
7144     {
7145       clear_mouse_face (hlinfo);
7146       hlinfo->mouse_face_mouse_frame = 0;
7147     }
7148 }
7149
7150
7151 - menuDown: sender
7152 {
7153   NSTRACE ("menuDown");
7154   if (context_menu_value == -1)
7155     context_menu_value = [sender tag];
7156   else
7157     {
7158       NSInteger tag = [sender tag];
7159       find_and_call_menu_selection (emacsframe, emacsframe->menu_bar_items_used,
7160                                     emacsframe->menu_bar_vector,
7161                                     (void *)tag);
7162     }
7163
7164   ns_send_appdefined (-1);
7165   return self;
7166 }
7167
7168
7169 - (EmacsToolbar *)toolbar
7170 {
7171   return toolbar;
7172 }
7173
7174
7175 /* this gets called on toolbar button click */
7176 - toolbarClicked: (id)item
7177 {
7178   NSEvent *theEvent;
7179   int idx = [item tag] * TOOL_BAR_ITEM_NSLOTS;
7180
7181   NSTRACE ("toolbarClicked");
7182
7183   if (!emacs_event)
7184     return self;
7185
7186   /* send first event (for some reason two needed) */
7187   theEvent = [[self window] currentEvent];
7188   emacs_event->kind = TOOL_BAR_EVENT;
7189   XSETFRAME (emacs_event->arg, emacsframe);
7190   EV_TRAILER (theEvent);
7191
7192   emacs_event->kind = TOOL_BAR_EVENT;
7193 /*   XSETINT (emacs_event->code, 0); */
7194   emacs_event->arg = AREF (emacsframe->tool_bar_items,
7195                            idx + TOOL_BAR_ITEM_KEY);
7196   emacs_event->modifiers = EV_MODIFIERS (theEvent);
7197   EV_TRAILER (theEvent);
7198   return self;
7199 }
7200
7201
7202 - toggleToolbar: (id)sender
7203 {
7204   if (!emacs_event)
7205     return self;
7206
7207   emacs_event->kind = NS_NONKEY_EVENT;
7208   emacs_event->code = KEY_NS_TOGGLE_TOOLBAR;
7209   EV_TRAILER ((id)nil);
7210   return self;
7211 }
7212
7213
7214 - (void)drawRect: (NSRect)rect
7215 {
7216   int x = NSMinX (rect), y = NSMinY (rect);
7217   int width = NSWidth (rect), height = NSHeight (rect);
7218
7219   NSTRACE ("drawRect");
7220   NSTRACE_RECT ("input", rect);
7221
7222   if (!emacsframe || !emacsframe->output_data.ns)
7223     return;
7224
7225   ns_clear_frame_area (emacsframe, x, y, width, height);
7226   block_input ();
7227   expose_frame (emacsframe, x, y, width, height);
7228   unblock_input ();
7229
7230   /*
7231     drawRect: may be called (at least in OS X 10.5) for invisible
7232     views as well for some reason.  Thus, do not infer visibility
7233     here.
7234
7235     emacsframe->async_visible = 1;
7236     emacsframe->async_iconified = 0;
7237   */
7238 }
7239
7240
7241 /* NSDraggingDestination protocol methods.  Actually this is not really a
7242    protocol, but a category of Object.  O well...  */
7243
7244 -(NSDragOperation) draggingEntered: (id <NSDraggingInfo>) sender
7245 {
7246   NSTRACE ("draggingEntered");
7247   return NSDragOperationGeneric;
7248 }
7249
7250
7251 -(BOOL)prepareForDragOperation: (id <NSDraggingInfo>) sender
7252 {
7253   return YES;
7254 }
7255
7256
7257 -(BOOL)performDragOperation: (id <NSDraggingInfo>) sender
7258 {
7259   id pb;
7260   int x, y;
7261   NSString *type;
7262   NSEvent *theEvent = [[self window] currentEvent];
7263   NSPoint position;
7264   NSDragOperation op = [sender draggingSourceOperationMask];
7265   int modifiers = 0;
7266
7267   NSTRACE ("performDragOperation");
7268
7269   if (!emacs_event)
7270     return NO;
7271
7272   position = [self convertPoint: [sender draggingLocation] fromView: nil];
7273   x = lrint (position.x);  y = lrint (position.y);
7274
7275   pb = [sender draggingPasteboard];
7276   type = [pb availableTypeFromArray: ns_drag_types];
7277
7278   if (! (op & (NSDragOperationMove|NSDragOperationDelete)) &&
7279       // URL drags contain all operations (0xf), don't allow all to be set.
7280       (op & 0xf) != 0xf)
7281     {
7282       if (op & NSDragOperationLink)
7283         modifiers |= NSControlKeyMask;
7284       if (op & NSDragOperationCopy)
7285         modifiers |= NSAlternateKeyMask;
7286       if (op & NSDragOperationGeneric)
7287         modifiers |= NSCommandKeyMask;
7288     }
7289
7290   modifiers = EV_MODIFIERS2 (modifiers);
7291   if (type == 0)
7292     {
7293       return NO;
7294     }
7295   else if ([type isEqualToString: NSFilenamesPboardType])
7296     {
7297       NSArray *files;
7298       NSEnumerator *fenum;
7299       NSString *file;
7300
7301       if (!(files = [pb propertyListForType: type]))
7302         return NO;
7303
7304       fenum = [files objectEnumerator];
7305       while ( (file = [fenum nextObject]) )
7306         {
7307           emacs_event->kind = DRAG_N_DROP_EVENT;
7308           XSETINT (emacs_event->x, x);
7309           XSETINT (emacs_event->y, y);
7310           ns_input_file = append2 (ns_input_file,
7311                                    build_string ([file UTF8String]));
7312           emacs_event->modifiers = modifiers;
7313           emacs_event->arg =  list2 (Qfile, build_string ([file UTF8String]));
7314           EV_TRAILER (theEvent);
7315         }
7316       return YES;
7317     }
7318   else if ([type isEqualToString: NSURLPboardType])
7319     {
7320       NSURL *url = [NSURL URLFromPasteboard: pb];
7321       if (url == nil) return NO;
7322
7323       emacs_event->kind = DRAG_N_DROP_EVENT;
7324       XSETINT (emacs_event->x, x);
7325       XSETINT (emacs_event->y, y);
7326       emacs_event->modifiers = modifiers;
7327       emacs_event->arg =  list2 (Qurl,
7328                                  build_string ([[url absoluteString]
7329                                                  UTF8String]));
7330       EV_TRAILER (theEvent);
7331
7332       if ([url isFileURL] != NO)
7333         {
7334           NSString *file = [url path];
7335           ns_input_file = append2 (ns_input_file,
7336                                    build_string ([file UTF8String]));
7337         }
7338       return YES;
7339     }
7340   else if ([type isEqualToString: NSStringPboardType]
7341            || [type isEqualToString: NSTabularTextPboardType])
7342     {
7343       NSString *data;
7344
7345       if (! (data = [pb stringForType: type]))
7346         return NO;
7347
7348       emacs_event->kind = DRAG_N_DROP_EVENT;
7349       XSETINT (emacs_event->x, x);
7350       XSETINT (emacs_event->y, y);
7351       emacs_event->modifiers = modifiers;
7352       emacs_event->arg =  list2 (Qnil, build_string ([data UTF8String]));
7353       EV_TRAILER (theEvent);
7354       return YES;
7355     }
7356   else
7357     {
7358       fprintf (stderr, "Invalid data type in dragging pasteboard");
7359       return NO;
7360     }
7361 }
7362
7363
7364 - (id) validRequestorForSendType: (NSString *)typeSent
7365                       returnType: (NSString *)typeReturned
7366 {
7367   NSTRACE ("validRequestorForSendType");
7368   if (typeSent != nil && [ns_send_types indexOfObject: typeSent] != NSNotFound
7369       && typeReturned == nil)
7370     {
7371       if (! NILP (ns_get_local_selection (QPRIMARY, QUTF8_STRING)))
7372         return self;
7373     }
7374
7375   return [super validRequestorForSendType: typeSent
7376                                returnType: typeReturned];
7377 }
7378
7379
7380 /* The next two methods are part of NSServicesRequests informal protocol,
7381    supposedly called when a services menu item is chosen from this app.
7382    But this should not happen because we override the services menu with our
7383    own entries which call ns-perform-service.
7384    Nonetheless, it appeared to happen (under strange circumstances): bug#1435.
7385    So let's at least stub them out until further investigation can be done. */
7386
7387 - (BOOL) readSelectionFromPasteboard: (NSPasteboard *)pb
7388 {
7389   /* we could call ns_string_from_pasteboard(pboard) here but then it should
7390      be written into the buffer in place of the existing selection..
7391      ordinary service calls go through functions defined in ns-win.el */
7392   return NO;
7393 }
7394
7395 - (BOOL) writeSelectionToPasteboard: (NSPasteboard *)pb types: (NSArray *)types
7396 {
7397   NSArray *typesDeclared;
7398   Lisp_Object val;
7399
7400   /* We only support NSStringPboardType */
7401   if ([types containsObject:NSStringPboardType] == NO) {
7402     return NO;
7403   }
7404
7405   val = ns_get_local_selection (QPRIMARY, QUTF8_STRING);
7406   if (CONSP (val) && SYMBOLP (XCAR (val)))
7407     {
7408       val = XCDR (val);
7409       if (CONSP (val) && NILP (XCDR (val)))
7410         val = XCAR (val);
7411     }
7412   if (! STRINGP (val))
7413     return NO;
7414
7415   typesDeclared = [NSArray arrayWithObject:NSStringPboardType];
7416   [pb declareTypes:typesDeclared owner:nil];
7417   ns_string_to_pasteboard (pb, val);
7418   return YES;
7419 }
7420
7421
7422 /* setMini =YES means set from internal (gives a finder icon), NO means set nil
7423    (gives a miniaturized version of the window); currently we use the latter for
7424    frames whose active buffer doesn't correspond to any file
7425    (e.g., '*scratch*') */
7426 - setMiniwindowImage: (BOOL) setMini
7427 {
7428   id image = [[self window] miniwindowImage];
7429   NSTRACE ("setMiniwindowImage");
7430
7431   /* NOTE: under Cocoa miniwindowImage always returns nil, documentation
7432      about "AppleDockIconEnabled" notwithstanding, however the set message
7433      below has its effect nonetheless. */
7434   if (image != emacsframe->output_data.ns->miniimage)
7435     {
7436       if (image && [image isKindOfClass: [EmacsImage class]])
7437         [image release];
7438       [[self window] setMiniwindowImage:
7439                        setMini ? emacsframe->output_data.ns->miniimage : nil];
7440     }
7441
7442   return self;
7443 }
7444
7445
7446 - (void) setRows: (int) r andColumns: (int) c
7447 {
7448   NSTRACE ("[EmacsView setRows:%d andColumns:%d]", r, c);
7449   rows = r;
7450   cols = c;
7451 }
7452
7453 - (int) fullscreenState
7454 {
7455   return fs_state;
7456 }
7457
7458 @end  /* EmacsView */
7459
7460
7461
7462 /* ==========================================================================
7463
7464     EmacsWindow implementation
7465
7466    ========================================================================== */
7467
7468 @implementation EmacsWindow
7469
7470 #ifdef NS_IMPL_COCOA
7471 - (id)accessibilityAttributeValue:(NSString *)attribute
7472 {
7473   Lisp_Object str = Qnil;
7474   struct frame *f = SELECTED_FRAME ();
7475   struct buffer *curbuf = XBUFFER (XWINDOW (f->selected_window)->contents);
7476
7477   if ([attribute isEqualToString:NSAccessibilityRoleAttribute])
7478     return NSAccessibilityTextFieldRole;
7479
7480   if ([attribute isEqualToString:NSAccessibilitySelectedTextAttribute]
7481       && curbuf && ! NILP (BVAR (curbuf, mark_active)))
7482     {
7483       str = ns_get_local_selection (QPRIMARY, QUTF8_STRING);
7484     }
7485   else if (curbuf && [attribute isEqualToString:NSAccessibilityValueAttribute])
7486     {
7487       if (! NILP (BVAR (curbuf, mark_active)))
7488           str = ns_get_local_selection (QPRIMARY, QUTF8_STRING);
7489
7490       if (NILP (str))
7491         {
7492           ptrdiff_t start_byte = BUF_BEGV_BYTE (curbuf);
7493           ptrdiff_t byte_range = BUF_ZV_BYTE (curbuf) - start_byte;
7494           ptrdiff_t range = BUF_ZV (curbuf) - BUF_BEGV (curbuf);
7495
7496           if (! NILP (BVAR (curbuf, enable_multibyte_characters)))
7497             str = make_uninit_multibyte_string (range, byte_range);
7498           else
7499             str = make_uninit_string (range);
7500           /* To check: This returns emacs-utf-8, which is a superset of utf-8.
7501              Is this a problem?  */
7502           memcpy (SDATA (str), BYTE_POS_ADDR (start_byte), byte_range);
7503         }
7504     }
7505
7506
7507   if (! NILP (str))
7508     {
7509       if (CONSP (str) && SYMBOLP (XCAR (str)))
7510         {
7511           str = XCDR (str);
7512           if (CONSP (str) && NILP (XCDR (str)))
7513             str = XCAR (str);
7514         }
7515       if (STRINGP (str))
7516         {
7517           const char *utfStr = SSDATA (str);
7518           NSString *nsStr = [NSString stringWithUTF8String: utfStr];
7519           return nsStr;
7520         }
7521     }
7522
7523   return [super accessibilityAttributeValue:attribute];
7524 }
7525 #endif /* NS_IMPL_COCOA */
7526
7527 /* Constrain size and placement of a frame.
7528
7529    By returning the original "frameRect", the frame is not
7530    contrained. This can lead to unwanted situations where, for
7531    example, the menu bar covers the frame.
7532
7533    The default implementation (accessed using "super") constrains the
7534    frame to the visible area of SCREEN, minus the menu bar (if
7535    present) and the Dock.  Note that default implementation also calls
7536    windowWillResize, with the frame it thinks should have.  (This can
7537    make the frame exit maximized mode.)
7538
7539    Note that this should work in situations where multiple monitors
7540    are present.  Common configurations are side-by-side monitors and a
7541    monitor on top of another (e.g. when a laptop is placed under a
7542    large screen). */
7543 - (NSRect)constrainFrameRect:(NSRect)frameRect toScreen:(NSScreen *)screen
7544 {
7545   NSTRACE ("constrainFrameRect:" NSTRACE_FMT_RECT " toScreen:",
7546              NSTRACE_ARG_RECT (frameRect));
7547
7548 #ifdef NS_IMPL_COCOA
7549 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_9
7550   // If separate spaces is on, it is like each screen is independent.  There is
7551   // no spanning of frames across screens.
7552   if ([NSScreen screensHaveSeparateSpaces])
7553     {
7554       NSTRACE_MSG ("Screens have separate spaces");
7555       frameRect = [super constrainFrameRect:frameRect toScreen:screen];
7556       NSTRACE_RETURN_RECT (frameRect);
7557       return frameRect;
7558     }
7559 #endif
7560 #endif
7561
7562   return constrain_frame_rect(frameRect);
7563 }
7564
7565
7566 - (void)performZoom:(id)sender
7567 {
7568   NSTRACE ("performZoom");
7569
7570   return [super performZoom:sender];
7571 }
7572
7573 - (void)zoom:(id)sender
7574 {
7575   struct frame * f = SELECTED_FRAME ();
7576
7577   NSTRACE ("zoom");
7578
7579   ns_update_auto_hide_menu_bar();
7580
7581   // Below are three zoom implementations.  In the final commit, the
7582   // idea is that the last should be included.
7583
7584 #if 0
7585   // Native zoom done using the standard zoom animation.  Size of the
7586   // resulting frame reduced to accomodate the Dock and, if present,
7587   // the menu-bar.
7588   [super zoom:sender];
7589
7590 #elsif 0
7591   // Native zoom done using the standard zoom animation, plus an
7592   // explicit resize to cover the full screen.
7593   [super zoom:sender];
7594
7595   // After the native zoom, resize the resulting frame to fill the
7596   // entire screen, except the menu-bar.
7597   //
7598   // This works for all practical purposes.  (The only minor oddity is
7599   // when transiting from full-height frame to a maximized, the
7600   // animation reduces the height of the frame slighty (to the 4
7601   // pixels needed to accomodate the Doc) before it snaps back into
7602   // full height.  The user would need a very trained eye to spot
7603   // this.)
7604   NSScreen * screen = [self screen];
7605   if (screen != nil)
7606     {
7607       int fs_state = [(EmacsView *)[self delegate] fullscreenState];
7608
7609       NSTRACE_FSTYPE ("fullscreenState", fs_state);
7610
7611       NSRect sr = [screen frame];
7612       NSRect wr = [self frame];
7613       NSTRACE_RECT ("Rect after zoom", wr);
7614
7615       NSRect newWr = wr;
7616
7617       if (fs_state == FULLSCREEN_MAXIMIZED
7618           || fs_state == FULLSCREEN_HEIGHT)
7619         {
7620           newWr.origin.x = 0;
7621           newWr.size.height = sr.size.height - ns_menu_bar_height(screen);
7622         }
7623
7624       if (fs_state == FULLSCREEN_MAXIMIZED
7625           || fs_state == FULLSCREEN_WIDTH)
7626         {
7627           newWr.origin.y = 0;
7628           newWr.size.width = sr.size.width;
7629         }
7630
7631       if (newWr.size.width     != wr.size.width
7632           || newWr.size.height != wr.size.height
7633           || newWr.origin.x    != wr.origin.x
7634           || newWr.origin.y    != wr.origin.y)
7635         {
7636           NSTRACE_RECT ("Corrected rect", newWr);
7637           [self setFrame: newWr display: NO];
7638         }
7639     }
7640 #else
7641   // Non-native zoom which is done instantaneous.  The resulting frame
7642   // covert the entire scrren, except the menu-bar, if present.
7643   NSScreen * screen = [self screen];
7644   if (screen != nil)
7645     {
7646       NSRect sr = [screen frame];
7647       sr.size.height -= ns_menu_bar_height (screen);
7648
7649       sr = [[self delegate] windowWillUseStandardFrame:self
7650                                           defaultFrame:sr];
7651       [self setFrame: sr display: NO];
7652     }
7653 #endif
7654 }
7655
7656 @end /* EmacsWindow */
7657
7658
7659 @implementation EmacsFSWindow
7660
7661 - (BOOL)canBecomeKeyWindow
7662 {
7663   return YES;
7664 }
7665
7666 - (BOOL)canBecomeMainWindow
7667 {
7668   return YES;
7669 }
7670
7671 @end
7672
7673 /* ==========================================================================
7674
7675     EmacsScroller implementation
7676
7677    ========================================================================== */
7678
7679
7680 @implementation EmacsScroller
7681
7682 /* for repeat button push */
7683 #define SCROLL_BAR_FIRST_DELAY 0.5
7684 #define SCROLL_BAR_CONTINUOUS_DELAY (1.0 / 15)
7685
7686 + (CGFloat) scrollerWidth
7687 {
7688   /* TODO: if we want to allow variable widths, this is the place to do it,
7689            however neither GNUstep nor Cocoa support it very well */
7690   CGFloat r;
7691 #if !defined (NS_IMPL_COCOA) || \
7692   MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
7693   r = [NSScroller scrollerWidth];
7694 #else
7695   r = [NSScroller scrollerWidthForControlSize: NSRegularControlSize
7696                                 scrollerStyle: NSScrollerStyleLegacy];
7697 #endif
7698   return r;
7699 }
7700
7701
7702 - initFrame: (NSRect )r window: (Lisp_Object)nwin
7703 {
7704   NSTRACE ("EmacsScroller_initFrame");
7705
7706   r.size.width = [EmacsScroller scrollerWidth];
7707   [super initWithFrame: r/*NSMakeRect (0, 0, 0, 0)*/];
7708   [self setContinuous: YES];
7709   [self setEnabled: YES];
7710
7711   /* Ensure auto resizing of scrollbars occurs within the emacs frame's view
7712      locked against the top and bottom edges, and right edge on OS X, where
7713      scrollers are on right. */
7714 #ifdef NS_IMPL_GNUSTEP
7715   [self setAutoresizingMask: NSViewMaxXMargin | NSViewHeightSizable];
7716 #else
7717   [self setAutoresizingMask: NSViewMinXMargin | NSViewHeightSizable];
7718 #endif
7719
7720   window = XWINDOW (nwin);
7721   condemned = NO;
7722   pixel_height = NSHeight (r);
7723   if (pixel_height == 0) pixel_height = 1;
7724   min_portion = 20 / pixel_height;
7725
7726   frame = XFRAME (window->frame);
7727   if (FRAME_LIVE_P (frame))
7728     {
7729       int i;
7730       EmacsView *view = FRAME_NS_VIEW (frame);
7731       NSView *sview = [[view window] contentView];
7732       NSArray *subs = [sview subviews];
7733
7734       /* disable optimization stopping redraw of other scrollbars */
7735       view->scrollbarsNeedingUpdate = 0;
7736       for (i =[subs count]-1; i >= 0; i--)
7737         if ([[subs objectAtIndex: i] isKindOfClass: [EmacsScroller class]])
7738           view->scrollbarsNeedingUpdate++;
7739       [sview addSubview: self];
7740     }
7741
7742 /*  [self setFrame: r]; */
7743
7744   return self;
7745 }
7746
7747
7748 - (void)setFrame: (NSRect)newRect
7749 {
7750   NSTRACE ("EmacsScroller_setFrame");
7751 /*  block_input (); */
7752   pixel_height = NSHeight (newRect);
7753   if (pixel_height == 0) pixel_height = 1;
7754   min_portion = 20 / pixel_height;
7755   [super setFrame: newRect];
7756 /*  unblock_input (); */
7757 }
7758
7759
7760 - (void)dealloc
7761 {
7762   NSTRACE ("EmacsScroller_dealloc");
7763   if (window)
7764     wset_vertical_scroll_bar (window, Qnil);
7765   window = 0;
7766   [super dealloc];
7767 }
7768
7769
7770 - condemn
7771 {
7772   NSTRACE ("condemn");
7773   condemned =YES;
7774   return self;
7775 }
7776
7777
7778 - reprieve
7779 {
7780   NSTRACE ("reprieve");
7781   condemned =NO;
7782   return self;
7783 }
7784
7785
7786 -(bool)judge
7787 {
7788   NSTRACE ("judge");
7789   bool ret = condemned;
7790   if (condemned)
7791     {
7792       EmacsView *view;
7793       block_input ();
7794       /* ensure other scrollbar updates after deletion */
7795       view = (EmacsView *)FRAME_NS_VIEW (frame);
7796       if (view != nil)
7797         view->scrollbarsNeedingUpdate++;
7798       if (window)
7799         wset_vertical_scroll_bar (window, Qnil);
7800       window = 0;
7801       [self removeFromSuperview];
7802       [self release];
7803       unblock_input ();
7804     }
7805   return ret;
7806 }
7807
7808
7809 - (void)resetCursorRects
7810 {
7811   NSRect visible = [self visibleRect];
7812   NSTRACE ("resetCursorRects");
7813
7814   if (!NSIsEmptyRect (visible))
7815     [self addCursorRect: visible cursor: [NSCursor arrowCursor]];
7816   [[NSCursor arrowCursor] setOnMouseEntered: YES];
7817 }
7818
7819
7820 - (int) checkSamePosition: (int) position portion: (int) portion
7821                     whole: (int) whole
7822 {
7823   return em_position ==position && em_portion ==portion && em_whole ==whole
7824     && portion != whole; /* needed for resize empty buf */
7825 }
7826
7827
7828 - setPosition: (int)position portion: (int)portion whole: (int)whole
7829 {
7830   NSTRACE ("setPosition");
7831
7832   em_position = position;
7833   em_portion = portion;
7834   em_whole = whole;
7835
7836   if (portion >= whole)
7837     {
7838 #ifdef NS_IMPL_COCOA
7839       [self setKnobProportion: 1.0];
7840       [self setDoubleValue: 1.0];
7841 #else
7842       [self setFloatValue: 0.0 knobProportion: 1.0];
7843 #endif
7844     }
7845   else
7846     {
7847       float pos;
7848       CGFloat por;
7849       portion = max ((float)whole*min_portion/pixel_height, portion);
7850       pos = (float)position / (whole - portion);
7851       por = (CGFloat)portion/whole;
7852 #ifdef NS_IMPL_COCOA
7853       [self setKnobProportion: por];
7854       [self setDoubleValue: pos];
7855 #else
7856       [self setFloatValue: pos knobProportion: por];
7857 #endif
7858     }
7859
7860   return self;
7861 }
7862
7863 /* set up emacs_event */
7864 - (void) sendScrollEventAtLoc: (float)loc fromEvent: (NSEvent *)e
7865 {
7866   Lisp_Object win;
7867   if (!emacs_event)
7868     return;
7869
7870   emacs_event->part = last_hit_part;
7871   emacs_event->code = 0;
7872   emacs_event->modifiers = EV_MODIFIERS (e) | down_modifier;
7873   XSETWINDOW (win, window);
7874   emacs_event->frame_or_window = win;
7875   emacs_event->timestamp = EV_TIMESTAMP (e);
7876   emacs_event->kind = SCROLL_BAR_CLICK_EVENT;
7877   emacs_event->arg = Qnil;
7878   XSETINT (emacs_event->x, loc * pixel_height);
7879   XSETINT (emacs_event->y, pixel_height-20);
7880
7881   if (q_event_ptr)
7882     {
7883       n_emacs_events_pending++;
7884       kbd_buffer_store_event_hold (emacs_event, q_event_ptr);
7885     }
7886   else
7887     hold_event (emacs_event);
7888   EVENT_INIT (*emacs_event);
7889   ns_send_appdefined (-1);
7890 }
7891
7892
7893 /* called manually thru timer to implement repeated button action w/hold-down */
7894 - repeatScroll: (NSTimer *)scrollEntry
7895 {
7896   NSEvent *e = [[self window] currentEvent];
7897   NSPoint p =  [[self window] mouseLocationOutsideOfEventStream];
7898   BOOL inKnob = [self testPart: p] == NSScrollerKnob;
7899
7900   /* clear timer if need be */
7901   if (inKnob || [scroll_repeat_entry timeInterval] == SCROLL_BAR_FIRST_DELAY)
7902     {
7903         [scroll_repeat_entry invalidate];
7904         [scroll_repeat_entry release];
7905         scroll_repeat_entry = nil;
7906
7907         if (inKnob)
7908           return self;
7909
7910         scroll_repeat_entry
7911           = [[NSTimer scheduledTimerWithTimeInterval:
7912                         SCROLL_BAR_CONTINUOUS_DELAY
7913                                             target: self
7914                                           selector: @selector (repeatScroll:)
7915                                           userInfo: 0
7916                                            repeats: YES]
7917               retain];
7918     }
7919
7920   [self sendScrollEventAtLoc: 0 fromEvent: e];
7921   return self;
7922 }
7923
7924
7925 /* Asynchronous mouse tracking for scroller.  This allows us to dispatch
7926    mouseDragged events without going into a modal loop. */
7927 - (void)mouseDown: (NSEvent *)e
7928 {
7929   NSRect sr, kr;
7930   /* hitPart is only updated AFTER event is passed on */
7931   NSScrollerPart part = [self testPart: [e locationInWindow]];
7932   CGFloat inc = 0.0, loc, kloc, pos;
7933   int edge = 0;
7934
7935   NSTRACE ("EmacsScroller_mouseDown");
7936
7937   switch (part)
7938     {
7939     case NSScrollerDecrementPage:
7940         last_hit_part = scroll_bar_above_handle; inc = -1.0; break;
7941     case NSScrollerIncrementPage:
7942         last_hit_part = scroll_bar_below_handle; inc = 1.0; break;
7943     case NSScrollerDecrementLine:
7944       last_hit_part = scroll_bar_up_arrow; inc = -0.1; break;
7945     case NSScrollerIncrementLine:
7946       last_hit_part = scroll_bar_down_arrow; inc = 0.1; break;
7947     case NSScrollerKnob:
7948       last_hit_part = scroll_bar_handle; break;
7949     case NSScrollerKnobSlot:  /* GNUstep-only */
7950       last_hit_part = scroll_bar_move_ratio; break;
7951     default:  /* NSScrollerNoPart? */
7952       fprintf (stderr, "EmacsScoller-mouseDown: unexpected part %ld\n",
7953                (long) part);
7954       return;
7955     }
7956
7957   if (inc != 0.0)
7958     {
7959       pos = 0;      /* ignored */
7960
7961       /* set a timer to repeat, as we can't let superclass do this modally */
7962       scroll_repeat_entry
7963         = [[NSTimer scheduledTimerWithTimeInterval: SCROLL_BAR_FIRST_DELAY
7964                                             target: self
7965                                           selector: @selector (repeatScroll:)
7966                                           userInfo: 0
7967                                            repeats: YES]
7968             retain];
7969     }
7970   else
7971     {
7972       /* handle, or on GNUstep possibly slot */
7973       NSEvent *fake_event;
7974
7975       /* compute float loc in slot and mouse offset on knob */
7976       sr = [self convertRect: [self rectForPart: NSScrollerKnobSlot]
7977                       toView: nil];
7978       loc = NSHeight (sr) - ([e locationInWindow].y - NSMinY (sr));
7979       if (loc <= 0.0)
7980         {
7981           loc = 0.0;
7982           edge = -1;
7983         }
7984       else if (loc >= NSHeight (sr))
7985         {
7986           loc = NSHeight (sr);
7987           edge = 1;
7988         }
7989
7990       if (edge)
7991         kloc = 0.5 * edge;
7992       else
7993         {
7994           kr = [self convertRect: [self rectForPart: NSScrollerKnob]
7995                           toView: nil];
7996           kloc = NSHeight (kr) - ([e locationInWindow].y - NSMinY (kr));
7997         }
7998       last_mouse_offset = kloc;
7999
8000       /* if knob, tell emacs a location offset by knob pos
8001          (to indicate top of handle) */
8002       if (part == NSScrollerKnob)
8003           pos = (loc - last_mouse_offset) / NSHeight (sr);
8004       else
8005         /* else this is a slot click on GNUstep: go straight there */
8006         pos = loc / NSHeight (sr);
8007
8008       /* send a fake mouse-up to super to preempt modal -trackKnob: mode */
8009       fake_event = [NSEvent mouseEventWithType: NSLeftMouseUp
8010                                       location: [e locationInWindow]
8011                                  modifierFlags: [e modifierFlags]
8012                                      timestamp: [e timestamp]
8013                                   windowNumber: [e windowNumber]
8014                                        context: [e context]
8015                                    eventNumber: [e eventNumber]
8016                                     clickCount: [e clickCount]
8017                                       pressure: [e pressure]];
8018       [super mouseUp: fake_event];
8019     }
8020
8021   if (part != NSScrollerKnob)
8022     [self sendScrollEventAtLoc: pos fromEvent: e];
8023 }
8024
8025
8026 /* Called as we manually track scroller drags, rather than superclass. */
8027 - (void)mouseDragged: (NSEvent *)e
8028 {
8029     NSRect sr;
8030     double loc, pos;
8031
8032     NSTRACE ("EmacsScroller_mouseDragged");
8033
8034       sr = [self convertRect: [self rectForPart: NSScrollerKnobSlot]
8035                       toView: nil];
8036       loc = NSHeight (sr) - ([e locationInWindow].y - NSMinY (sr));
8037
8038       if (loc <= 0.0)
8039         {
8040           loc = 0.0;
8041         }
8042       else if (loc >= NSHeight (sr) + last_mouse_offset)
8043         {
8044           loc = NSHeight (sr) + last_mouse_offset;
8045         }
8046
8047       pos = (loc - last_mouse_offset) / NSHeight (sr);
8048       [self sendScrollEventAtLoc: pos fromEvent: e];
8049 }
8050
8051
8052 - (void)mouseUp: (NSEvent *)e
8053 {
8054   if (scroll_repeat_entry)
8055     {
8056       [scroll_repeat_entry invalidate];
8057       [scroll_repeat_entry release];
8058       scroll_repeat_entry = nil;
8059     }
8060   last_hit_part = scroll_bar_above_handle;
8061 }
8062
8063
8064 /* treat scrollwheel events in the bar as though they were in the main window */
8065 - (void) scrollWheel: (NSEvent *)theEvent
8066 {
8067   EmacsView *view = (EmacsView *)FRAME_NS_VIEW (frame);
8068   [view mouseDown: theEvent];
8069 }
8070
8071 @end  /* EmacsScroller */
8072
8073
8074 #ifdef NS_IMPL_GNUSTEP
8075 /* Dummy class to get rid of startup warnings.  */
8076 @implementation EmacsDocument
8077
8078 @end
8079 #endif
8080
8081
8082 /* ==========================================================================
8083
8084    Font-related functions; these used to be in nsfaces.m
8085
8086    ========================================================================== */
8087
8088
8089 Lisp_Object
8090 x_new_font (struct frame *f, Lisp_Object font_object, int fontset)
8091 {
8092   struct font *font = XFONT_OBJECT (font_object);
8093   EmacsView *view = FRAME_NS_VIEW (f);
8094   int font_ascent, font_descent;
8095
8096   if (fontset < 0)
8097     fontset = fontset_from_font (font_object);
8098   FRAME_FONTSET (f) = fontset;
8099
8100   if (FRAME_FONT (f) == font)
8101     /* This font is already set in frame F.  There's nothing more to
8102        do.  */
8103     return font_object;
8104
8105   FRAME_FONT (f) = font;
8106
8107   FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
8108   FRAME_COLUMN_WIDTH (f) = font->average_width;
8109   get_font_ascent_descent (font, &font_ascent, &font_descent);
8110   FRAME_LINE_HEIGHT (f) = font_ascent + font_descent;
8111
8112   /* Compute the scroll bar width in character columns.  */
8113   if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
8114     {
8115       int wid = FRAME_COLUMN_WIDTH (f);
8116       FRAME_CONFIG_SCROLL_BAR_COLS (f)
8117         = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid - 1) / wid;
8118     }
8119   else
8120     {
8121       int wid = FRAME_COLUMN_WIDTH (f);
8122       FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
8123     }
8124
8125   /* Compute the scroll bar height in character lines.  */
8126   if (FRAME_CONFIG_SCROLL_BAR_HEIGHT (f) > 0)
8127     {
8128       int height = FRAME_LINE_HEIGHT (f);
8129       FRAME_CONFIG_SCROLL_BAR_LINES (f)
8130         = (FRAME_CONFIG_SCROLL_BAR_HEIGHT (f) + height - 1) / height;
8131     }
8132   else
8133     {
8134       int height = FRAME_LINE_HEIGHT (f);
8135       FRAME_CONFIG_SCROLL_BAR_LINES (f) = (14 + height - 1) / height;
8136     }
8137
8138   /* Now make the frame display the given font.  */
8139   if (FRAME_NS_WINDOW (f) != 0 && ! [view isFullscreen])
8140     adjust_frame_size (f, FRAME_COLS (f) * FRAME_COLUMN_WIDTH (f),
8141                        FRAME_LINES (f) * FRAME_LINE_HEIGHT (f), 3,
8142                        false, Qfont);
8143
8144   return font_object;
8145 }
8146
8147
8148 /* XLFD: -foundry-family-weight-slant-swidth-adstyle-pxlsz-ptSz-resx-resy-spc-avgWidth-rgstry-encoding */
8149 /* Note: ns_font_to_xlfd and ns_fontname_to_xlfd no longer needed, removed
8150          in 1.43. */
8151
8152 const char *
8153 ns_xlfd_to_fontname (const char *xlfd)
8154 /* --------------------------------------------------------------------------
8155     Convert an X font name (XLFD) to an NS font name.
8156     Only family is used.
8157     The string returned is temporarily allocated.
8158    -------------------------------------------------------------------------- */
8159 {
8160   char *name = xmalloc (180);
8161   int i, len;
8162   const char *ret;
8163
8164   if (!strncmp (xlfd, "--", 2))
8165     sscanf (xlfd, "--%*[^-]-%[^-]179-", name);
8166   else
8167     sscanf (xlfd, "-%*[^-]-%[^-]179-", name);
8168
8169   /* stopgap for malformed XLFD input */
8170   if (strlen (name) == 0)
8171     strcpy (name, "Monaco");
8172
8173   /* undo hack in ns_fontname_to_xlfd, converting '$' to '-', '_' to ' '
8174      also uppercase after '-' or ' ' */
8175   name[0] = c_toupper (name[0]);
8176   for (len =strlen (name), i =0; i<len; i++)
8177     {
8178       if (name[i] == '$')
8179         {
8180           name[i] = '-';
8181           if (i+1<len)
8182             name[i+1] = c_toupper (name[i+1]);
8183         }
8184       else if (name[i] == '_')
8185         {
8186           name[i] = ' ';
8187           if (i+1<len)
8188             name[i+1] = c_toupper (name[i+1]);
8189         }
8190     }
8191 /*fprintf (stderr, "converted '%s' to '%s'\n",xlfd,name);  */
8192   ret = [[NSString stringWithUTF8String: name] UTF8String];
8193   xfree (name);
8194   return ret;
8195 }
8196
8197
8198 void
8199 syms_of_nsterm (void)
8200 {
8201   NSTRACE ("syms_of_nsterm");
8202
8203   ns_antialias_threshold = 10.0;
8204
8205   /* from 23+ we need to tell emacs what modifiers there are.. */
8206   DEFSYM (Qmodifier_value, "modifier-value");
8207   DEFSYM (Qalt, "alt");
8208   DEFSYM (Qhyper, "hyper");
8209   DEFSYM (Qmeta, "meta");
8210   DEFSYM (Qsuper, "super");
8211   DEFSYM (Qcontrol, "control");
8212   DEFSYM (QUTF8_STRING, "UTF8_STRING");
8213
8214   DEFSYM (Qfile, "file");
8215   DEFSYM (Qurl, "url");
8216
8217   Fput (Qalt, Qmodifier_value, make_number (alt_modifier));
8218   Fput (Qhyper, Qmodifier_value, make_number (hyper_modifier));
8219   Fput (Qmeta, Qmodifier_value, make_number (meta_modifier));
8220   Fput (Qsuper, Qmodifier_value, make_number (super_modifier));
8221   Fput (Qcontrol, Qmodifier_value, make_number (ctrl_modifier));
8222
8223   DEFVAR_LISP ("ns-input-file", ns_input_file,
8224               "The file specified in the last NS event.");
8225   ns_input_file =Qnil;
8226
8227   DEFVAR_LISP ("ns-working-text", ns_working_text,
8228               "String for visualizing working composition sequence.");
8229   ns_working_text =Qnil;
8230
8231   DEFVAR_LISP ("ns-input-font", ns_input_font,
8232               "The font specified in the last NS event.");
8233   ns_input_font =Qnil;
8234
8235   DEFVAR_LISP ("ns-input-fontsize", ns_input_fontsize,
8236               "The fontsize specified in the last NS event.");
8237   ns_input_fontsize =Qnil;
8238
8239   DEFVAR_LISP ("ns-input-line", ns_input_line,
8240                "The line specified in the last NS event.");
8241   ns_input_line =Qnil;
8242
8243   DEFVAR_LISP ("ns-input-spi-name", ns_input_spi_name,
8244                "The service name specified in the last NS event.");
8245   ns_input_spi_name =Qnil;
8246
8247   DEFVAR_LISP ("ns-input-spi-arg", ns_input_spi_arg,
8248                "The service argument specified in the last NS event.");
8249   ns_input_spi_arg =Qnil;
8250
8251   DEFVAR_LISP ("ns-alternate-modifier", ns_alternate_modifier,
8252                "This variable describes the behavior of the alternate or option key.\n\
8253 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
8254 Set to none means that the alternate / option key is not interpreted by Emacs\n\
8255 at all, allowing it to be used at a lower level for accented character entry.");
8256   ns_alternate_modifier = Qmeta;
8257
8258   DEFVAR_LISP ("ns-right-alternate-modifier", ns_right_alternate_modifier,
8259                "This variable describes the behavior of the right alternate or option key.\n\
8260 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
8261 Set to left means be the same key as `ns-alternate-modifier'.\n\
8262 Set to none means that the alternate / option key is not interpreted by Emacs\n\
8263 at all, allowing it to be used at a lower level for accented character entry.");
8264   ns_right_alternate_modifier = Qleft;
8265
8266   DEFVAR_LISP ("ns-command-modifier", ns_command_modifier,
8267                "This variable describes the behavior of the command key.\n\
8268 Set to control, meta, alt, super, or hyper means it is taken to be that key.");
8269   ns_command_modifier = Qsuper;
8270
8271   DEFVAR_LISP ("ns-right-command-modifier", ns_right_command_modifier,
8272                "This variable describes the behavior of the right command key.\n\
8273 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
8274 Set to left means be the same key as `ns-command-modifier'.\n\
8275 Set to none means that the command / option key is not interpreted by Emacs\n\
8276 at all, allowing it to be used at a lower level for accented character entry.");
8277   ns_right_command_modifier = Qleft;
8278
8279   DEFVAR_LISP ("ns-control-modifier", ns_control_modifier,
8280                "This variable describes the behavior of the control key.\n\
8281 Set to control, meta, alt, super, or hyper means it is taken to be that key.");
8282   ns_control_modifier = Qcontrol;
8283
8284   DEFVAR_LISP ("ns-right-control-modifier", ns_right_control_modifier,
8285                "This variable describes the behavior of the right control key.\n\
8286 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
8287 Set to left means be the same key as `ns-control-modifier'.\n\
8288 Set to none means that the control / option key is not interpreted by Emacs\n\
8289 at all, allowing it to be used at a lower level for accented character entry.");
8290   ns_right_control_modifier = Qleft;
8291
8292   DEFVAR_LISP ("ns-function-modifier", ns_function_modifier,
8293                "This variable describes the behavior of the function key (on laptops).\n\
8294 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
8295 Set to none means that the function key is not interpreted by Emacs at all,\n\
8296 allowing it to be used at a lower level for accented character entry.");
8297   ns_function_modifier = Qnone;
8298
8299   DEFVAR_LISP ("ns-antialias-text", ns_antialias_text,
8300                "Non-nil (the default) means to render text antialiased.");
8301   ns_antialias_text = Qt;
8302
8303   DEFVAR_LISP ("ns-confirm-quit", ns_confirm_quit,
8304                "Whether to confirm application quit using dialog.");
8305   ns_confirm_quit = Qnil;
8306
8307   DEFVAR_LISP ("ns-auto-hide-menu-bar", ns_auto_hide_menu_bar,
8308                doc: /* Non-nil means that the menu bar is hidden, but appears when the mouse is near.
8309 Only works on OSX 10.6 or later.  */);
8310   ns_auto_hide_menu_bar = Qnil;
8311
8312   DEFVAR_BOOL ("ns-use-native-fullscreen", ns_use_native_fullscreen,
8313      doc: /*Non-nil means to use native fullscreen on OSX >= 10.7.
8314 Nil means use fullscreen the old (< 10.7) way.  The old way works better with
8315 multiple monitors, but lacks tool bar.  This variable is ignored on OSX < 10.7.
8316 Default is t for OSX >= 10.7, nil otherwise.  */);
8317 #ifdef HAVE_NATIVE_FS
8318   ns_use_native_fullscreen = YES;
8319 #else
8320   ns_use_native_fullscreen = NO;
8321 #endif
8322   ns_last_use_native_fullscreen = ns_use_native_fullscreen;
8323
8324   DEFVAR_BOOL ("ns-use-fullscreen-animation", ns_use_fullscreen_animation,
8325      doc: /*Non-nil means use animation on non-native fullscreen.
8326 For native fullscreen, this does nothing.
8327 Default is nil.  */);
8328   ns_use_fullscreen_animation = NO;
8329
8330   DEFVAR_BOOL ("ns-use-srgb-colorspace", ns_use_srgb_colorspace,
8331      doc: /*Non-nil means to use sRGB colorspace on OSX >= 10.7.
8332 Note that this does not apply to images.
8333 This variable is ignored on OSX < 10.7 and GNUstep.  */);
8334   ns_use_srgb_colorspace = YES;
8335
8336   /* TODO: move to common code */
8337   DEFVAR_LISP ("x-toolkit-scroll-bars", Vx_toolkit_scroll_bars,
8338                doc: /* Which toolkit scroll bars Emacs uses, if any.
8339 A value of nil means Emacs doesn't use toolkit scroll bars.
8340 With the X Window system, the value is a symbol describing the
8341 X toolkit.  Possible values are: gtk, motif, xaw, or xaw3d.
8342 With MS Windows or Nextstep, the value is t.  */);
8343   Vx_toolkit_scroll_bars = Qt;
8344
8345   DEFVAR_BOOL ("x-use-underline-position-properties",
8346                x_use_underline_position_properties,
8347      doc: /*Non-nil means make use of UNDERLINE_POSITION font properties.
8348 A value of nil means ignore them.  If you encounter fonts with bogus
8349 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
8350 to 4.1, set this to nil. */);
8351   x_use_underline_position_properties = 0;
8352
8353   DEFVAR_BOOL ("x-underline-at-descent-line",
8354                x_underline_at_descent_line,
8355      doc: /* Non-nil means to draw the underline at the same place as the descent line.
8356 A value of nil means to draw the underline according to the value of the
8357 variable `x-use-underline-position-properties', which is usually at the
8358 baseline level.  The default value is nil.  */);
8359   x_underline_at_descent_line = 0;
8360
8361   /* Tell Emacs about this window system.  */
8362   Fprovide (Qns, Qnil);
8363
8364   DEFSYM (Qcocoa, "cocoa");
8365   DEFSYM (Qgnustep, "gnustep");
8366
8367 #ifdef NS_IMPL_COCOA
8368   Fprovide (Qcocoa, Qnil);
8369   syms_of_macfont ();
8370 #else
8371   Fprovide (Qgnustep, Qnil);
8372   syms_of_nsfont ();
8373 #endif
8374
8375 }