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treeview: Add back the Gdk pointer grab during column dragging

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The reparenting happening on the column header so it gets a movable
window breaks the implicit grab, so this is one situation were we
want a pointer grab, if just to replace it.

https://bugzilla.gnome.org/show_bug.cgi?id=732933
This commit is contained in:
Carlos Garnacho 2014-07-09 16:20:01 +02:00 committed by Matthias Clasen
parent 5fb9c4441e
commit edc5cb4e47
1 changed files with 18 additions and 1 deletions
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17
gtk/gtktreeview.c
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@ -3533,7 +3533,11 @@ gtk_tree_view_column_drag_gesture_end (GtkGestureDrag *gesture,
tree_view->priv->cur_reorder = NULL;
if (tree_view->priv->in_column_drag)
{
gtk_tree_view_button_release_drag_column (tree_view);
gdk_device_ungrab (gtk_gesture_get_device (GTK_GESTURE (gesture)),
GDK_CURRENT_TIME);
}
else if (tree_view->priv->in_column_resize)
gtk_tree_view_button_release_column_resize (tree_view);
}
@ -9999,6 +10003,19 @@ _gtk_tree_view_column_start_drag (GtkTreeView *tree_view,
tree_view->priv->in_column_drag = TRUE;
/* Widget reparenting above unmaps and indirectly breaks
* the implicit grab, replace it with an active one.
*/
gdk_device_grab (device,
tree_view->priv->drag_window,
GDK_OWNERSHIP_NONE,
FALSE,
GDK_TOUCH_MASK |
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL,
GDK_CURRENT_TIME);
gtk_gesture_set_state (tree_view->priv->column_drag_gesture,
GTK_EVENT_SEQUENCE_CLAIMED);
}