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display: clean up event handling

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The only events we handle as XIEvents are FocusIn/Out, Enter and
Leave.  Motion, ButtonPress/Release, KeyPress/Release are handled
through clutter instead.
Among other things, this means we don't need to fake motion compression
by peeking over gdk event queue...
This commit is contained in:
Giovanni Campagna
2014-02-27 14:56:55 +01:00
parent 89aa5df711
commit 5c99eae8a9
3 changed files with 2 additions and 249 deletions
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182
src/core/window.c
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@ -8521,98 +8521,6 @@ update_resize (MetaWindow *window,
g_get_current_time (&window->display->grab_last_moveresize_time);
}
typedef struct
{
Window window;
int count;
guint32 last_time;
} EventScannerData;
static Bool
find_last_time_predicate (Display *display,
XEvent *ev,
XPointer arg)
{
EventScannerData *esd = (void*) arg;
XIEvent *xev;
if (ev->type != GenericEvent)
return False;
/* We are peeking into events not yet handled by GDK,
* Allocate cookie events here so we can handle XI2.
*
* GDK will handle later these events, and eventually
* free the cookie data itself.
*/
XGetEventData (display, &ev->xcookie);
xev = (XIEvent *) ev->xcookie.data;
if (xev->evtype != XI_Motion)
return False;
if (esd->window != ((XIDeviceEvent *) xev)->event)
return False;
esd->count += 1;
esd->last_time = xev->time;
return False;
}
static gboolean
check_use_this_motion_notify (MetaWindow *window,
XIDeviceEvent *xev)
{
EventScannerData esd;
XEvent useless;
/* This code is copied from Owen's GDK code. */
if (window->display->grab_motion_notify_time != 0)
{
/* == is really the right test, but I'm all for paranoia */
if (window->display->grab_motion_notify_time <=
xev->time)
{
meta_topic (META_DEBUG_RESIZING,
"Arrived at event with time %u (waiting for %u), using it\n",
(unsigned int)xev->time,
window->display->grab_motion_notify_time);
window->display->grab_motion_notify_time = 0;
return TRUE;
}
else
return FALSE; /* haven't reached the saved timestamp yet */
}
esd.window = xev->event;
esd.count = 0;
esd.last_time = 0;
/* "useless" isn't filled in because the predicate never returns True */
XCheckIfEvent (window->display->xdisplay,
&useless,
find_last_time_predicate,
(XPointer) &esd);
if (esd.count > 0)
meta_topic (META_DEBUG_RESIZING,
"Will skip %d motion events and use the event with time %u\n",
esd.count, (unsigned int) esd.last_time);
if (esd.last_time == 0)
return TRUE;
else
{
/* Save this timestamp, and ignore all motion notify
* until we get to the one with this stamp.
*/
window->display->grab_motion_notify_time = esd.last_time;
return FALSE;
}
}
static void
update_tile_mode (MetaWindow *window)
{
@ -8683,96 +8591,6 @@ meta_window_update_sync_request_counter (MetaWindow *window,
}
#endif /* HAVE_XSYNC */
void
meta_window_handle_mouse_grab_op_xevent (MetaWindow *window,
XIDeviceEvent *xevent)
{
gboolean is_window_root = (xevent->root == window->screen->xroot);
switch (xevent->evtype)
{
case XI_ButtonRelease:
if (xevent->detail == 1 ||
xevent->detail == meta_prefs_get_mouse_button_resize ())
{
meta_display_check_threshold_reached (window->display,
xevent->root_x,
xevent->root_y);
/* If the user was snap moving then ignore the button
* release because they may have let go of shift before
* releasing the mouse button and they almost certainly do
* not want a non-snapped movement to occur from the button
* release.
*/
if (!window->display->grab_last_user_action_was_snap)
{
if (meta_grab_op_is_moving (window->display->grab_op))
{
if (window->tile_mode != META_TILE_NONE)
meta_window_tile (window);
else if (is_window_root)
update_move (window,
xevent->mods.effective & ShiftMask,
xevent->root_x,
xevent->root_y);
}
else if (meta_grab_op_is_resizing (window->display->grab_op))
{
if (is_window_root)
update_resize (window,
xevent->mods.effective & ShiftMask,
xevent->root_x,
xevent->root_y,
TRUE);
/* If a tiled window has been dragged free with a
* mouse resize without snapping back to the tiled
* state, it will end up with an inconsistent tile
* mode on mouse release; cleaning the mode earlier
* would break the ability to snap back to the tiled
* state, so we wait until mouse release.
*/
update_tile_mode (window);
}
meta_display_end_grab_op (window->display, xevent->time);
}
}
break;
case XI_Motion:
meta_display_check_threshold_reached (window->display,
xevent->root_x,
xevent->root_y);
if (meta_grab_op_is_moving (window->display->grab_op))
{
if (is_window_root)
{
if (check_use_this_motion_notify (window, xevent))
update_move (window,
xevent->mods.effective & ShiftMask,
xevent->root_x,
xevent->root_y);
}
}
else if (meta_grab_op_is_resizing (window->display->grab_op))
{
if (is_window_root)
{
if (check_use_this_motion_notify (window, xevent))
update_resize (window,
xevent->mods.effective & ShiftMask,
xevent->root_x,
xevent->root_y,
FALSE);
}
}
break;
default:
break;
}
}
void
meta_window_handle_mouse_grab_op_event (MetaWindow *window,
const ClutterEvent *event)