From 20c817d3657ec67792edafd75f34d829144e8590 Mon Sep 17 00:00:00 2001
From: Eli Zaretskii <eliz@gnu.org>
Date: Sun, 8 Feb 2015 18:17:40 +0200
Subject: [PATCH] Fix handling of frame color parameters in TTY sessions 
 (Bug#19802)

 src/xfaces.c (map_tty_color): Use assoc_no_quit instead of
 assq_no_quit to fetch color definition by its string name.

 lisp/frame.el (frame-notice-user-settings): Refresh the value of
 frame parameters after calling tty-handle-reverse-video.  Call
 face-set-after-frame-default with the actual parameters, to avoid
 resetting colors back to unspecified.
 (set-background-color, set-foreground-color): Pass the selected
 color to face-set-after-frame-default.
---
 lisp/ChangeLog |  9 +++++++++
 lisp/frame.el  | 14 +++++++++++---
 src/ChangeLog  |  6 ++++++
 src/xfaces.c   |  2 +-
 4 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 17b3d11243..79e3378b2e 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,12 @@
+2015-02-08  Eli Zaretskii  <eliz@gnu.org>
+
+	* frame.el (frame-notice-user-settings): Refresh the value of
+	frame parameters after calling tty-handle-reverse-video.  Call
+	face-set-after-frame-default with the actual parameters, to avoid
+	resetting colors back to unspecified.
+	(set-background-color, set-foreground-color): Pass the selected
+	color to face-set-after-frame-default.  (Bug#19802)
+
 2015-02-06  Wolfgang Jenkner  <wjenkner@inode.at>
 
 	* net/network-stream.el (network-stream-open-tls): Respect the
diff --git a/lisp/frame.el b/lisp/frame.el
index c77df558da..eea5c24a82 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -251,6 +251,10 @@ there (in decreasing order of priority)."
 	    (let ((newparms (frame-parameters))
 		  (frame (selected-frame)))
 	      (tty-handle-reverse-video frame newparms)
+	      ;; tty-handle-reverse-video might change the frame's
+	      ;; color parameters, and we need to use the updated
+	      ;; value below.
+	      (setq newparms (frame-parameters))
 	      ;; If we changed the background color, we need to update
 	      ;; the background-mode parameter, and maybe some faces,
 	      ;; too.
@@ -258,7 +262,7 @@ there (in decreasing order of priority)."
 		(unless (or (assq 'background-mode initial-frame-alist)
 			    (assq 'background-mode default-frame-alist))
 		  (frame-set-background-mode frame))
-		(face-set-after-frame-default frame))))))
+		(face-set-after-frame-default frame newparms))))))
 
     ;; If the initial frame is still around, apply initial-frame-alist
     ;; and default-frame-alist to it.
@@ -1185,7 +1189,9 @@ To get the frame's current background color, use `frame-parameters'."
   (modify-frame-parameters (selected-frame)
 			   (list (cons 'background-color color-name)))
   (or window-system
-      (face-set-after-frame-default (selected-frame))))
+      (face-set-after-frame-default (selected-frame)
+				    (list
+				     (cons 'background-color color-name)))))
 
 (defun set-foreground-color (color-name)
   "Set the foreground color of the selected frame to COLOR-NAME.
@@ -1195,7 +1201,9 @@ To get the frame's current foreground color, use `frame-parameters'."
   (modify-frame-parameters (selected-frame)
 			   (list (cons 'foreground-color color-name)))
   (or window-system
-      (face-set-after-frame-default (selected-frame))))
+      (face-set-after-frame-default (selected-frame)
+				    (list
+				     (cons 'foreground-color color-name)))))
 
 (defun set-cursor-color (color-name)
   "Set the text cursor color of the selected frame to COLOR-NAME.
diff --git a/src/ChangeLog b/src/ChangeLog
index 135f28fb20..7a7fd23d43 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,9 @@
+2015-02-08  Eli Zaretskii  <eliz@gnu.org>
+
+	* xfaces.c (map_tty_color): Use assoc_no_quit instead of
+	assq_no_quit to fetch color definition by its string name.
+	(Bug#19802)
+
 2015-02-05  Eli Zaretskii  <eliz@gnu.org>
 
 	* xdisp.c (move_it_in_display_line_to): Handle the case where the
diff --git a/src/xfaces.c b/src/xfaces.c
index 44c72aa494..29c91f7169 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -5793,7 +5793,7 @@ map_tty_color (struct frame *f, struct face *face,
   if (STRINGP (color)
       && SCHARS (color)
       && CONSP (Vtty_defined_color_alist)
-      && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)),
+      && (def = assoc_no_quit (color, call1 (Qtty_color_alist, frame)),
 	  CONSP (def)))
     {
       /* Associations in tty-defined-color-alist are of the form
-- 
2.39.2