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Fix assertion violations when clicking on Info bread-crumbs.

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src/xdisp.c (draw_glyphs): Don't draw in mouse face if mouse
 highlighting on the frame was cleared.  Prevents assertion
 violations when repeatedly clicking on the "Top" link of the
 "bread-crumbs" in Info buffers.
This commit is contained in:
Eli Zaretskii
2012-11-24 09:25:52 +02:00
parent 259719a65d
commit 22294a56e8
2 changed files with 10 additions and 1 deletions
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7
src/ChangeLog
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@@ -1,3 +1,10 @@
2012-11-24 Eli Zaretskii <eliz@gnu.org>
* xdisp.c (draw_glyphs): Don't draw in mouse face if mouse
highlighting on the frame was cleared. Prevents assertion
violations when repeatedly clicking on the "Top" link of the
"bread-crumbs" in Info buffers.
2012-11-23 Paul Eggert <eggert@cs.ucla.edu>
Eli Zaretskii <eliz@gnu.org>

4
src/xdisp.c
View File

@@ -23512,7 +23512,9 @@ draw_glyphs (struct window *w, int x, struct glyph_row *row,
/* If mouse highlighting is on, we may need to draw adjacent
glyphs using mouse-face highlighting. */
if (area == TEXT_AREA && row->mouse_face_p)
if (area == TEXT_AREA && row->mouse_face_p
&& hlinfo->mouse_face_beg_row >= 0
&& hlinfo->mouse_face_end_row >= 0)
{
struct glyph_row *mouse_beg_row, *mouse_end_row;