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Patch from Thomas Andersen to make windows be stacked correctly before

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2006-09-13  Elijah Newren  <newren gmail com>

	* src/window.c (meta_window_show): Patch from Thomas Andersen to
	make windows be stacked correctly before showing them, to prevent
	flicker with focus stealing prevention.  #332385.
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Elijah Newren 2006-09-13 22:21:19 +00:00 committed by Elijah Newren
parent 8c3bce3f98
commit 8144a962e7
2 changed files with 77 additions and 62 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2006-09-13 Elijah Newren <newren gmail com>
* src/window.c (meta_window_show): Patch from Thomas Andersen to
make windows be stacked correctly before showing them, to prevent
flicker with focus stealing prevention. #332385.
2006-09-13 Elijah Newren <newren gmail com>
* src/common.h (MetaWindowMenuFunc):

97
src/window.c
View File

@ -1921,6 +1921,59 @@ meta_window_show (MetaWindow *window)
window->denied_focus_and_not_transient = FALSE;
}
if (needs_stacking_adjustment)
{
/* needs_stacking_adjustment is only set under certain
* circumstances currently; if those circumstances change, this
* code may need re-thinking too
*/
g_assert(window->showing_for_first_time &&
!place_on_top_on_map &&
!takes_focus_on_map &&
focus_window != NULL);
/* This window isn't getting focus on map. We may need to do some
* special handing with it in regards to
* - the stacking of the window
* - the MRU position of the window
* - the demands attention setting of the window
*/
gboolean overlap;
overlap = windows_overlap (window, focus_window);
/* We want alt tab to go to the denied-focus window */
ensure_mru_position_after (window, focus_window);
/* We don't want the denied-focus window to obscure the focus
* window, and if we're in both click-to-focus mode and
* raise-on-click mode then we want to maintain the invariant
* that MRU order == stacking order. The need for this if
* comes from the fact that in sloppy/mouse focus the focus
* window may not overlap other windows and also can be
* considered "below" them; this combination means that
* placing the denied-focus window "below" the focus window
* in the stack when it doesn't overlap it confusingly places
* that new window below a lot of other windows.
*/
if (overlap ||
(meta_prefs_get_focus_mode () == META_FOCUS_MODE_CLICK &&
meta_prefs_get_raise_on_click ()))
meta_window_stack_just_below (window, focus_window);
/* If the window will be obscured by the focus window, then the
* user might not notice the window appearing so set the
* demands attention hint.
*
* We set the hint ourselves rather than calling
* meta_window_set_demands_attention() because that would cause
* a recalculation of overlap, and a call to set_net_wm_state()
* which we are going to call ourselves here a few lines down.
*/
if (overlap)
window->wm_state_demands_attention = TRUE;
}
/* Shaded means the frame is mapped but the window is not */
if (window->frame && !window->frame->mapped)
@ -2006,50 +2059,6 @@ meta_window_show (MetaWindow *window)
}
else
{
/* This window isn't getting focus on map. We may need to do some
* special handing with it in regards to
* - the stacking of the window
* - the MRU position of the window
* - the demands attention setting of the window
*/
if (!place_on_top_on_map && needs_stacking_adjustment)
{
gboolean overlap;
g_assert (focus_window != NULL);
overlap = windows_overlap (window, focus_window);
/* We want alt tab to go to the denied-focus window */
ensure_mru_position_after (window, focus_window);
/* We don't want the denied-focus window to obscure the focus
* window, and if we're in both click-to-focus mode and
* raise-on-click mode then we want to maintain the invariant
* that MRU order == stacking order. The need for this if
* comes from the fact that in sloppy/mouse focus the focus
* window may not overlap other windows and also can be
* considered "below" them; this combination means that
* placing the denied-focus window "below" the focus window
* in the stack when it doesn't overlap it confusingly places
* that new window below a lot of other windows.
*/
if (overlap ||
(meta_prefs_get_focus_mode () == META_FOCUS_MODE_CLICK &&
meta_prefs_get_raise_on_click ()))
meta_window_stack_just_below (window, focus_window);
/* If the window will be obscured by the focus window, then the
* user might not notice the window appearing so set the
* demands attention hint.
*
* We set the hint ourselves rather than calling
* meta_window_set_demands_attention() because that would cause
* a recalculation of overlap, and a call to set_net_wm_state()
* which we are going to call ourselves here a few lines down.
*/
if (overlap)
window->wm_state_demands_attention = TRUE;
}
/* Prevent EnterNotify events in sloppy/mouse focus from
* erroneously focusing the window that had been denied
* focus. FIXME: This introduces a race; I have a couple