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Deal gracefully with unowned selections

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If a selection looses its owner without a replacement, owner is
None, which we did not handle very well.

https://bugzilla.gnome.org/show_bug.cgi?id=641042
This commit is contained in:
Matthias Clasen 2011-01-31 19:35:51 -05:00
parent fc43e42bf2
commit b52db73f59
3 changed files with 17 additions and 11 deletions
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7
gdk/gdkevents.c
View File

@ -568,7 +568,9 @@ gdk_event_copy (const GdkEvent *event)
break;
case GDK_OWNER_CHANGE:
new_event->owner_change.owner = g_object_ref (event->owner_change.owner);
new_event->owner_change.owner = event->owner_change.owner;
if (new_event->owner_change.owner)
g_object_ref (new_event->owner_change.owner);
break;
default:
@ -641,7 +643,8 @@ gdk_event_free (GdkEvent *event)
break;
case GDK_OWNER_CHANGE:
g_object_unref (event->owner_change.owner);
if (event->owner_change.owner)
g_object_unref (event->owner_change.owner);
break;
default:

14
gdk/gdkevents.h
View File

@ -819,15 +819,15 @@ struct _GdkEventSelection
/**
* GdkEventOwnerChange:
* @type: the type of the event (%GDK_OWNER_CHANGE).
* @window: the window which received the event.
* @window: the window which received the event
* @send_event: %TRUE if the event was sent explicitly (e.g. using
* <function>XSendEvent</function>).
* @owner: the new owner of the selection.
* @reason: the reason for the ownership change as a #GdkOwnerChange value.
* @selection: the atom identifying the selection.
* @time: the timestamp of the event.
* <function>XSendEvent</function>)
* @owner: the new owner of the selection, or %NULL if there is none
* @reason: the reason for the ownership change as a #GdkOwnerChange value
* @selection: the atom identifying the selection
* @time: the timestamp of the event
* @selection_time: the time at which the selection ownership was taken
* over.
* over
*
* Generated when the owner of a selection changes. On X11, this
* information is only available if the X server supports the XFIXES

7
gdk/x11/gdkdisplay-x11.c
View File

@ -919,8 +919,11 @@ gdk_x11_display_translate_event (GdkEventTranslator *translator,
event->owner_change.type = GDK_OWNER_CHANGE;
event->owner_change.window = window;
event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
selection_notify->owner);
if (selection_notify->owner != None)
event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
selection_notify->owner);
else
event->owner_change.owner = NULL;
event->owner_change.reason = selection_notify->subtype;
event->owner_change.selection =
gdk_x11_xatom_to_atom_for_display (display,