code.delx.au - gnu-emacs/blob - lisp/term/w32-win.el

   1 ;;; w32-win.el --- parse switches controlling interface with W32 window system -*- lexical-binding: t -*-
   2
   3 ;; Copyright (C) 1993-1994, 2001-2013 Free Software Foundation, Inc.
   4
   5 ;; Author: Kevin Gallo
   6 ;; Keywords: terminals
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;; w32-win.el:  this file is loaded from ../lisp/startup.el when it recognizes
  26 ;; that W32 windows are to be used.  Command line switches are parsed and those
  27 ;; pertaining to W32 are processed and removed from the command line.  The
  28 ;; W32 display is opened and hooks are set for popping up the initial window.
  29
  30 ;; startup.el will then examine startup files, and eventually call the hooks
  31 ;; which create the first window (s).
  32
  33 ;;; Code:
  34 \f
  35
  36 ;; These are the standard X switches from the Xt Initialize.c file of
  37 ;; Release 4.
  38
  39 ;; Command line         Resource Manager string
  40
  41 ;; +rv                  *reverseVideo
  42 ;; +synchronous         *synchronous
  43 ;; -background          *background
  44 ;; -bd                  *borderColor
  45 ;; -bg                  *background
  46 ;; -bordercolor         *borderColor
  47 ;; -borderwidth         .borderWidth
  48 ;; -bw                  .borderWidth
  49 ;; -display             .display
  50 ;; -fg                  *foreground
  51 ;; -fn                  *font
  52 ;; -font                *font
  53 ;; -foreground          *foreground
  54 ;; -geometry            .geometry
  55 ;; -i                   .iconType
  56 ;; -itype               .iconType
  57 ;; -iconic              .iconic
  58 ;; -name                .name
  59 ;; -reverse             *reverseVideo
  60 ;; -rv                  *reverseVideo
  61 ;; -selectionTimeout    .selectionTimeout
  62 ;; -synchronous         *synchronous
  63 ;; -xrm
  64
  65 ;; An alist of X options and the function which handles them.  See
  66 ;; ../startup.el.
  67
  68 ;; (if (not (eq window-system 'w32))
  69 ;;     (error "%s: Loading w32-win.el but not compiled for w32" (invocation-name)))
  70
  71 (eval-when-compile (require 'cl-lib))
  72 (require 'frame)
  73 (require 'mouse)
  74 (require 'scroll-bar)
  75 (require 'faces)
  76 (require 'select)
  77 (require 'menu-bar)
  78 (require 'dnd)
  79 (require 'w32-vars)
  80
  81 ;; Keep an obsolete alias for w32-focus-frame and w32-select-font in case
  82 ;; they are used by code outside Emacs.
  83 (define-obsolete-function-alias 'w32-focus-frame 'x-focus-frame "23.1")
  84 (declare-function x-select-font "w32font.c"
  85                   (&optional frame exclude-proportional))
  86 (define-obsolete-function-alias 'w32-select-font 'x-select-font "23.1")
  87
  88 (defvar w32-color-map) ;; defined in w32fns.c
  89 (make-obsolete 'w32-default-color-map nil "24.1")
  90
  91 (declare-function w32-send-sys-command "w32fns.c")
  92 (declare-function set-message-beep "w32fns.c")
  93
  94 (declare-function cygwin-convert-file-name-from-windows "cygw32.c"
  95                   (path &optional absolute_p))
  96
  97 ;; Conditional on new-fontset so bootstrapping works on non-GUI compiles
  98 (if (fboundp 'new-fontset)
  99     (require 'fontset))
 100
 101 ;; The following definition is used for debugging scroll bar events.
 102 ;(defun w32-handle-scroll-bar-event (event) (interactive "e") (princ event))
 103
 104 ;; (defun w32-drag-n-drop-debug (event)
 105 ;;   "Print the drag-n-drop EVENT in a readable form."
 106 ;;   (interactive "e")
 107 ;;   (princ event))
 108
 109 (defun w32-handle-dropped-file (window file-name)
 110   (let ((f (if (eq system-type 'cygwin)
 111                (cygwin-convert-file-name-from-windows file-name t)
 112              (subst-char-in-string ?\\ ?/ file-name)))
 113         (coding (or file-name-coding-system
 114                     default-file-name-coding-system)))
 115
 116     (setq file-name
 117           (mapconcat 'url-hexify-string
 118                      (split-string (encode-coding-string f coding)
 119                                    "/")
 120                      "/")))
 121                 (dnd-handle-one-url window 'private
 122                                     (concat
 123                                      (if (eq system-type 'cygwin)
 124                                          "file://"
 125                                        "file:")
 126                                      file-name)))
 127
 128 (defun w32-drag-n-drop (event &optional new-frame)
 129   "Edit the files listed in the drag-n-drop EVENT.
 130 Switch to a buffer editing the last file dropped."
 131   (interactive "e")
 132   (save-excursion
 133     ;; Make sure the drop target has positive co-ords
 134     ;; before setting the selected frame - otherwise it
 135     ;; won't work.  <skx@tardis.ed.ac.uk>
 136     (let* ((window (posn-window (event-start event)))
 137            (coords (posn-x-y (event-start event)))
 138            (x (car coords))
 139            (y (cdr coords)))
 140       (if (and (> x 0) (> y 0))
 141           (set-frame-selected-window nil window))
 142
 143       (when new-frame
 144         (select-frame (make-frame)))
 145       (raise-frame)
 146       (setq window (selected-window))
 147
 148       (mapc (apply-partially #'w32-handle-dropped-file window)
 149             (car (cdr (cdr event)))))))
 150
 151 (defun w32-drag-n-drop-other-frame (event)
 152   "Edit the files listed in the drag-n-drop EVENT, in other frames.
 153 May create new frames, or reuse existing ones.  The frame editing
 154 the last file dropped is selected."
 155   (interactive "e")
 156   (w32-drag-n-drop event t))
 157
 158 ;; Bind the drag-n-drop event.
 159 (global-set-key [drag-n-drop] 'w32-drag-n-drop)
 160 (global-set-key [C-drag-n-drop] 'w32-drag-n-drop-other-frame)
 161
 162 ;; Keyboard layout/language change events
 163 ;; For now ignore language-change events; in the future
 164 ;; we should switch the Emacs Input Method to match the
 165 ;; new layout/language selected by the user.
 166 (global-set-key [language-change] 'ignore)
 167
 168 (defvar x-resource-name)
 169
 170 \f
 171 ;;;; Function keys
 172
 173  ;;; make f10 activate the real menubar rather than the mini-buffer menu
 174  ;;; navigation feature.
 175  (defun w32-menu-bar-open (&optional frame)
 176    "Start key navigation of the menu bar in FRAME.
 177
 178 This initially activates the first menu-bar item, and you can then navigate
 179 with the arrow keys, select a menu entry with the Return key or cancel with
 180 the Escape key.  If FRAME has no menu bar, this function does nothing.
 181
 182 If FRAME is nil or not given, use the selected frame.
 183 If FRAME does not have the menu bar enabled, display a text menu using
 184 `tmm-menubar'."
 185    (interactive "i")
 186    (if menu-bar-mode
 187        (w32-send-sys-command ?\xf100 frame)
 188      (with-selected-frame (or frame (selected-frame))
 189        (tmm-menubar))))
 190 \f
 191
 192 ;; W32 systems have different fonts than commonly found on X, so
 193 ;; we define our own standard fontset here.
 194 (defvar w32-standard-fontset-spec
 195  "-*-Courier New-normal-r-*-*-13-*-*-*-c-*-fontset-standard"
 196  "String of fontset spec of the standard fontset.
 197 This defines a fontset consisting of the Courier New variations for
 198 European languages which are distributed with Windows as
 199 \"Multilanguage Support\".
 200
 201 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 202
 203 (defun x-win-suspend-error ()
 204   "Report an error when a suspend is attempted."
 205   (error "Suspending an Emacs running under W32 makes no sense"))
 206
 207 (defvar dynamic-library-alist)
 208 (defvar libpng-version)                 ; image.c #ifdef HAVE_NTGUI
 209
 210 ;;; Set default known names for external libraries
 211 (setq dynamic-library-alist
 212       (list
 213        '(xpm "libxpm.dll" "xpm4.dll" "libXpm-nox4.dll")
 214        ;; Versions of libpng 1.4.x and later are incompatible with
 215        ;; earlier versions.  Set up the list of libraries according to
 216        ;; the version we were compiled against.  (If we were compiled
 217        ;; without PNG support, libpng-version's value is -1.)
 218        (if (>= libpng-version 10400)
 219            ;; libpng14-14.dll is libpng 1.4.3 from GTK+
 220            '(png "libpng14-14.dll" "libpng14.dll")
 221          '(png "libpng12d.dll" "libpng12.dll" "libpng3.dll" "libpng.dll"
 222                ;; these are libpng 1.2.8 from GTK+
 223                "libpng13d.dll" "libpng13.dll"))
 224        '(jpeg "jpeg62.dll" "libjpeg.dll" "jpeg-62.dll" "jpeg.dll")
 225        '(tiff "libtiff3.dll" "libtiff.dll")
 226        '(gif "giflib4.dll" "libungif4.dll" "libungif.dll")
 227        '(svg "librsvg-2-2.dll")
 228        '(gdk-pixbuf "libgdk_pixbuf-2.0-0.dll")
 229        '(glib "libglib-2.0-0.dll")
 230        '(gobject "libgobject-2.0-0.dll")
 231        '(gnutls "libgnutls-28.dll" "libgnutls-26.dll")
 232        '(libxml2 "libxml2-2.dll" "libxml2.dll")))
 233
 234 ;;; multi-tty support
 235 (defvar w32-initialized nil
 236   "Non-nil if the w32 window system has been initialized.")
 237
 238 (declare-function x-open-connection "w32fns.c"
 239                   (display &optional xrm-string must-succeed))
 240 (declare-function create-fontset-from-fontset-spec "fontset"
 241                   (fontset-spec &optional style-variant noerror))
 242 (declare-function create-fontset-from-x-resource "fontset" ())
 243 (declare-function x-get-resource "frame.c"
 244                   (attribute class &optional component subclass))
 245 (declare-function x-handle-args "common-win" (args))
 246 (declare-function x-parse-geometry "frame.c" (string))
 247 (defvar x-command-line-resources)
 248
 249 (defun w32-initialize-window-system ()
 250   "Initialize Emacs for W32 GUI frames."
 251   (cl-assert (not w32-initialized))
 252
 253   ;; Do the actual Windows setup here; the above code just defines
 254   ;; functions and variables that we use now.
 255
 256   (setq command-line-args (x-handle-args command-line-args))
 257
 258   ;; Make sure we have a valid resource name.
 259   (or (stringp x-resource-name)
 260       (setq x-resource-name
 261             ;; Change any . or * characters in x-resource-name to hyphens,
 262             ;; so as not to choke when we use it in X resource queries.
 263             (replace-regexp-in-string "[.*]" "-" (invocation-name))))
 264
 265   (x-open-connection "w32" x-command-line-resources
 266                      ;; Exit with a fatal error if this fails and we
 267                      ;; are the initial display
 268                      (eq initial-window-system 'w32))
 269
 270   ;; Create the default fontset.
 271   (create-default-fontset)
 272   ;; Create the standard fontset.
 273   (condition-case err
 274       (create-fontset-from-fontset-spec w32-standard-fontset-spec t)
 275     (error (display-warning
 276             'initialization
 277             (format "Creation of the standard fontset failed: %s" err)
 278             :error)))
 279   ;; Create fontset specified in X resources "Fontset-N" (N is 0, 1,...).
 280   (create-fontset-from-x-resource)
 281
 282   ;; Apply a geometry resource to the initial frame.  Put it at the end
 283   ;; of the alist, so that anything specified on the command line takes
 284   ;; precedence.
 285   (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
 286          parsed)
 287     (if res-geometry
 288         (progn
 289           (setq parsed (x-parse-geometry res-geometry))
 290           ;; If the resource specifies a position,
 291           ;; call the position and size "user-specified".
 292           (if (or (assq 'top parsed) (assq 'left parsed))
 293               (setq parsed (cons '(user-position . t)
 294                                  (cons '(user-size . t) parsed))))
 295           ;; All geometry parms apply to the initial frame.
 296           (setq initial-frame-alist (append initial-frame-alist parsed))
 297           ;; The size parms apply to all frames.
 298           (if (and (assq 'height parsed)
 299                    (not (assq 'height default-frame-alist)))
 300               (setq default-frame-alist
 301                     (cons (cons 'height (cdr (assq 'height parsed)))
 302                           default-frame-alist))
 303           (if (and (assq 'width parsed)
 304                    (not (assq 'width default-frame-alist)))
 305               (setq default-frame-alist
 306                     (cons (cons 'width (cdr (assq 'width parsed)))
 307                           default-frame-alist)))))))
 308
 309   ;; Check the reverseVideo resource.
 310   (let ((case-fold-search t))
 311     (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
 312       (if (and rv (string-match "^\\(true\\|yes\\|on\\)$" rv))
 313           (setq default-frame-alist
 314                 (cons '(reverse . t) default-frame-alist)))))
 315
 316   ;; Don't let Emacs suspend under Windows.
 317   (add-hook 'suspend-hook 'x-win-suspend-error)
 318
 319   ;; Turn off window-splitting optimization; w32 is usually fast enough
 320   ;; that this is only annoying.
 321   (setq split-window-keep-point t)
 322
 323   ;; W32 expects the menu bar cut and paste commands to use the clipboard.
 324   (menu-bar-enable-clipboard)
 325
 326   ;; Don't show the frame name; that's redundant.
 327   (setq-default mode-line-frame-identification "  ")
 328
 329   ;; Set to a system sound if you want a fancy bell.
 330   (set-message-beep 'ok)
 331   (x-apply-session-resources)
 332   (setq w32-initialized t))
 333
 334 (add-to-list 'display-format-alist '("\\`w32\\'" . w32))
 335 (add-to-list 'handle-args-function-alist '(w32 . x-handle-args))
 336 (add-to-list 'frame-creation-function-alist '(w32 . x-create-frame-with-faces))
 337 (add-to-list 'window-system-initialization-alist '(w32 . w32-initialize-window-system))
 338
 339 (provide 'w32-win)
 340
 341 ;;; w32-win.el ends here