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widget: Improve hack to ignore drags from widgets using motion events

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Postpone until the last moment whether the target widget still
potentially uses updates from this sequence, or window dragging
actually applies because all gestures on the target went to denied
state.

This fixes window dragging on empty space in a headerbar that is
contained in a paned (as in e.g. gedit).

https://bugzilla.gnome.org/show_bug.cgi?id=745562
This commit is contained in:
Carlos Garnacho
2015-03-03 22:17:58 +01:00
committed by Matthias Clasen
parent 768e6a4579
commit 08494f86a0
3 changed files with 26 additions and 18 deletions
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12
gtk/gtkwidget.c
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@ -17284,7 +17284,8 @@ _gtk_widget_list_controllers (GtkWidget *widget,
}
gboolean
_gtk_widget_consumes_motion (GtkWidget *widget)
_gtk_widget_consumes_motion (GtkWidget *widget,
GdkEventSequence *sequence)
{
EventControllerData *data;
GtkWidgetPrivate *priv;
@ -17301,10 +17302,11 @@ _gtk_widget_consumes_motion (GtkWidget *widget)
if (data->controller == NULL)
continue;
if (!GTK_IS_GESTURE_SINGLE (data->controller))
return TRUE;
else if (GTK_IS_GESTURE_DRAG (data->controller) ||
GTK_IS_GESTURE_SWIPE (data->controller))
if ((!GTK_IS_GESTURE_SINGLE (data->controller) ||
GTK_IS_GESTURE_DRAG (data->controller) ||
GTK_IS_GESTURE_SWIPE (data->controller)) &&
gtk_gesture_get_sequence_state (GTK_GESTURE (data->controller),
sequence) != GTK_EVENT_SEQUENCE_DENIED)
return TRUE;
}