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Avoid a stuck grab, preventing focus from being transferred between

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2006-09-09  Elijah Newren  <newren gmail com>

	Avoid a stuck grab, preventing focus from being transferred
	between windows.  Thanks to Fryderyk Dziarmagowski for steps to
	reproduce.  Fixes at least part of #354422.

	* src/display.c (meta_display_begin_grab_op,
	meta_display_end_grab_op): pass timestamp to
	meta_screen_ungrab_all_keys, meta_screen_ungrab_all_keys, and
	meta_window_ungrab_all_keys

	* src/keybindings.[ch] (grab_keyboard, ungrab_keyboard): add a
	timestamp parameter and remove call to
	meta_display_get_current_time(), (meta_screen_grab_all_keys,
	meta_screen_ungrab_all_keys, meta_window_ungrab_all_keys): add a
	timestamp parameter and pass it on to grab_keyboard and
	ungrab_keyboard
This commit is contained in:
Elijah Newren 2006-09-09 20:19:56 +00:00 committed by Elijah Newren
parent 2ab4a35c53
commit 555d7dc90c
4 changed files with 37 additions and 21 deletions
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18
ChangeLog
View File

@ -1,3 +1,21 @@
2006-09-09 Elijah Newren <newren gmail com>
Avoid a stuck grab, preventing focus from being transferred
between windows. Thanks to Fryderyk Dziarmagowski for steps to
reproduce. Fixes at least part of #354422.
* src/display.c (meta_display_begin_grab_op,
meta_display_end_grab_op): pass timestamp to
meta_screen_ungrab_all_keys, meta_screen_ungrab_all_keys, and
meta_window_ungrab_all_keys
* src/keybindings.[ch] (grab_keyboard, ungrab_keyboard): add a
timestamp parameter and remove call to
meta_display_get_current_time(), (meta_screen_grab_all_keys,
meta_screen_ungrab_all_keys, meta_window_ungrab_all_keys): add a
timestamp parameter and pass it on to grab_keyboard and
ungrab_keyboard
2006-09-07 Elijah Newren <newren gmail com>
* src/constraints.c (update_onscreen_requirements): make sure

6
src/display.c
View File

@ -3323,7 +3323,7 @@ meta_display_begin_grab_op (MetaDisplay *display,
else
display->grab_have_keyboard =
meta_screen_grab_all_keys (screen);
meta_screen_grab_all_keys (screen, timestamp);
if (!display->grab_have_keyboard)
{
@ -3618,9 +3618,9 @@ meta_display_end_grab_op (MetaDisplay *display,
meta_topic (META_DEBUG_WINDOW_OPS,
"Ungrabbing all keys timestamp %lu\n", timestamp);
if (display->grab_window)
meta_window_ungrab_all_keys (display->grab_window);
meta_window_ungrab_all_keys (display->grab_window, timestamp);
else
meta_screen_ungrab_all_keys (display->grab_screen);
meta_screen_ungrab_all_keys (display->grab_screen, timestamp);
}
#ifdef HAVE_XSYNC

25
src/keybindings.c
View File

@ -1208,18 +1208,17 @@ grab_status_to_string (int status)
static gboolean
grab_keyboard (MetaDisplay *display,
Window xwindow)
Window xwindow,
Time timestamp)
{
int result;
int grab_status;
Time timestamp;
/* Grab the keyboard, so we get key releases and all key
* presses
*/
meta_error_trap_push_with_return (display);
timestamp = meta_display_get_current_time (display);
grab_status = XGrabKeyboard (display->xdisplay,
xwindow, True,
GrabModeAsync, GrabModeAsync,
@ -1251,12 +1250,8 @@ grab_keyboard (MetaDisplay *display,
}
static void
ungrab_keyboard (MetaDisplay *display)
ungrab_keyboard (MetaDisplay *display, Time timestamp)
{
Time timestamp;
timestamp = meta_display_get_current_time (display);
meta_error_trap_push (display);
meta_topic (META_DEBUG_KEYBINDINGS,
@ -1267,7 +1262,7 @@ ungrab_keyboard (MetaDisplay *display)
}
gboolean
meta_screen_grab_all_keys (MetaScreen *screen)
meta_screen_grab_all_keys (MetaScreen *screen, Time timestamp)
{
gboolean retval;
@ -1279,7 +1274,7 @@ meta_screen_grab_all_keys (MetaScreen *screen)
meta_topic (META_DEBUG_KEYBINDINGS,
"Grabbing all keys on RootWindow\n");
retval = grab_keyboard (screen->display, screen->xroot);
retval = grab_keyboard (screen->display, screen->xroot, timestamp);
if (retval)
screen->all_keys_grabbed = TRUE;
else
@ -1289,11 +1284,11 @@ meta_screen_grab_all_keys (MetaScreen *screen)
}
void
meta_screen_ungrab_all_keys (MetaScreen *screen)
meta_screen_ungrab_all_keys (MetaScreen *screen, Time timestamp)
{
if (screen->all_keys_grabbed)
{
ungrab_keyboard (screen->display);
ungrab_keyboard (screen->display, timestamp);
screen->all_keys_grabbed = FALSE;
screen->keys_grabbed = FALSE;
@ -1328,7 +1323,7 @@ meta_window_grab_all_keys (MetaWindow *window,
meta_topic (META_DEBUG_KEYBINDINGS,
"Grabbing all keys on window %s\n", window->desc);
retval = grab_keyboard (window->display, grabwindow);
retval = grab_keyboard (window->display, grabwindow, timestamp);
if (retval)
{
window->keys_grabbed = FALSE;
@ -1340,11 +1335,11 @@ meta_window_grab_all_keys (MetaWindow *window,
}
void
meta_window_ungrab_all_keys (MetaWindow *window)
meta_window_ungrab_all_keys (MetaWindow *window, Time timestamp)
{
if (window->all_keys_grabbed)
{
ungrab_keyboard (window->display);
ungrab_keyboard (window->display, timestamp);
window->grab_on_frame = FALSE;
window->all_keys_grabbed = FALSE;

9
src/keybindings.h
View File

@ -29,13 +29,16 @@ void meta_display_init_keys (MetaDisplay *display);
void meta_display_shutdown_keys (MetaDisplay *display);
void meta_screen_grab_keys (MetaScreen *screen);
void meta_screen_ungrab_keys (MetaScreen *screen);
gboolean meta_screen_grab_all_keys (MetaScreen *screen);
void meta_screen_ungrab_all_keys (MetaScreen *screen);
gboolean meta_screen_grab_all_keys (MetaScreen *screen,
Time timestamp);
void meta_screen_ungrab_all_keys (MetaScreen *screen,
Time timestamp);
void meta_window_grab_keys (MetaWindow *window);
void meta_window_ungrab_keys (MetaWindow *window);
gboolean meta_window_grab_all_keys (MetaWindow *window,
Time timestamp);
void meta_window_ungrab_all_keys (MetaWindow *window);
void meta_window_ungrab_all_keys (MetaWindow *window,
Time timestamp);
void meta_display_process_key_event (MetaDisplay *display,
MetaWindow *window,
XEvent *event);