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Code Issues Releases Activity

(note_mouse_movement): Use frame's window in XQueryPointer.

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Special case if mouse isn't on that window.
(note_mouse_highlight): Handle negative args and too-large args.
This commit is contained in:
Richard M. Stallman 1994-05-25 09:20:45 +00:00
parent 10bba2660f
commit 27f338afea
1 changed files with 30 additions and 9 deletions
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39
src/xterm.c
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@ -292,7 +292,8 @@ static int mouse_face_face_id;
gc was in progress. */
static int mouse_face_deferred_gc;
/* FRAME and X, Y position of mouse when last checked for highlighting. */
/* FRAME and X, Y position of mouse when last checked for
highlighting. X and Y can be negative or out of range for the frame. */
static FRAME_PTR mouse_face_mouse_frame;
static int mouse_face_mouse_x, mouse_face_mouse_y;
@ -2085,11 +2086,29 @@ note_mouse_movement (frame, event)
{
last_mouse_movement_time = event->time;
if (event->window != FRAME_X_WINDOW (frame))
{
mouse_moved = 1;
last_mouse_scroll_bar = Qnil;
note_mouse_highlight (frame, -1, -1);
/* Ask for another mouse motion event. */
{
int dummy;
XQueryPointer (event->display, FRAME_X_WINDOW (frame),
(Window *) &dummy, (Window *) &dummy,
&dummy, &dummy, &dummy, &dummy,
(unsigned int *) &dummy);
}
}
/* Has the mouse moved off the glyph it was on at the last sighting? */
if (event->x < last_mouse_glyph.x
|| event->x >= last_mouse_glyph.x + last_mouse_glyph.width
|| event->y < last_mouse_glyph.y
|| event->y >= last_mouse_glyph.y + last_mouse_glyph.height)
else if (event->x < last_mouse_glyph.x
|| event->x >= last_mouse_glyph.x + last_mouse_glyph.width
|| event->y < last_mouse_glyph.y
|| event->y >= last_mouse_glyph.y + last_mouse_glyph.height)
{
mouse_moved = 1;
last_mouse_scroll_bar = Qnil;
@ -2100,7 +2119,7 @@ note_mouse_movement (frame, event)
{
int dummy;
XQueryPointer (event->display, event->window,
XQueryPointer (event->display, FRAME_X_WINDOW (frame),
(Window *) &dummy, (Window *) &dummy,
&dummy, &dummy, &dummy, &dummy,
(unsigned int *) &dummy);
@ -2113,7 +2132,7 @@ note_mouse_movement (frame, event)
*still* on the same glyph. */
int dummy;
XQueryPointer (event->display, event->window,
XQueryPointer (event->display, FRAME_X_WINDOW (frame),
(Window *) &dummy, (Window *) &dummy,
&dummy, &dummy, &dummy, &dummy,
(unsigned int *) &dummy);
@ -2125,7 +2144,8 @@ static int disable_mouse_highlight;
/* Take proper action when the mouse has moved to position X, Y on frame F
as regards highlighting characters that have mouse-face properties.
Also dehighlighting chars where the mouse was before. */
Also dehighlighting chars where the mouse was before.
X and Y can be negative or out of range. */
static void
note_mouse_highlight (f, x, y)
@ -2166,7 +2186,8 @@ note_mouse_highlight (f, x, y)
/* Are we in a window whose display is up to date?
And verify the buffer's text has not changed. */
if (WINDOWP (window) && portion == 0
if (WINDOWP (window) && portion == 0 && row >= 0 && column >= 0
&& row < FRAME_HEIGHT (f) && column < FRAME_WIDTH (f)
&& EQ (w->window_end_valid, w->buffer)
&& w->last_modified == BUF_MODIFF (XBUFFER (w->buffer)))
{