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Track pointer grabs on Xserver time

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After a successful grab/ungrab we wait for an xserver
roundtrip until we change the tracked grab in GdkDisplay.
This way that data is always up-to-date wrt events comming in.
This commit is contained in:
Alexander Larsson
2009-01-26 20:38:20 +01:00
committed by Alexander Larsson
parent d2c1c0a8db
commit 016c5fd081
2 changed files with 73 additions and 12 deletions
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34
gdk/x11/gdkdisplay-x11.c
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@ -31,6 +31,7 @@
#include <glib.h>
#include "gdkx.h"
#include "gdkasync.h"
#include "gdkdisplay.h"
#include "gdkdisplay-x11.h"
#include "gdkscreen.h"
@ -591,6 +592,25 @@ _gdk_x11_display_is_root_window (GdkDisplay *display,
return FALSE;
}
struct XPointerUngrabInfo {
GdkDisplay *display;
guint32 time;
};
static void
pointer_ungrab_callback (gpointer _data)
{
struct XPointerUngrabInfo *data = _data;
_gdk_display_unset_has_pointer_grab (data->display,
FALSE,
FALSE,
data->time);
g_free (data);
}
#define XSERVER_TIME_IS_LATER(time1, time2) \
( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
(( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
@ -625,10 +645,16 @@ gdk_display_pointer_ungrab (GdkDisplay *display,
display->pointer_grab.time == GDK_CURRENT_TIME ||
!XSERVER_TIME_IS_LATER (display->pointer_grab.time, time_))
{
_gdk_display_unset_has_pointer_grab (display,
FALSE,
FALSE,
time_);
struct XPointerUngrabInfo *data;
data = g_new (struct XPointerUngrabInfo, 1);
data->display = GDK_DISPLAY_OBJECT (display_x11);
data->time = time_;
_gdk_x11_roundtrip_async (data->display,
pointer_ungrab_callback,
data);
}
}