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combobox: popdown the combobox when on 'grab-broken-event'

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And also explicitly remove pointer/keyboard grabs from the display.

Whenever the grab is reported lost, we should popdown the combobox, so that the
GDK_WINDOW_TEMP window is hidden and removed from the toplevel, as done with
the menu for example.

Leaving the GDK_WINDOW_TEMP window open when re-activating the application
triggers several issues in the win32 backend, due to restacking windows of the
non-toplevel group into the toplevel group:

https://bugzilla.gnome.org/show_bug.cgi?id=695200
This commit is contained in:
Aleksander Morgado 2013-03-06 13:16:12 +01:00 committed by Matthias Clasen
parent d1de6c322b
commit 24fa277329
1 changed files with 22 additions and 0 deletions
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22
gtk/gtkcombobox.c
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@ -2331,6 +2331,19 @@ popup_grab_on_window (GdkWindow *window,
return TRUE;
}
static gboolean
gtk_combo_box_grab_broken_event (GtkWidget *widget,
GdkEventGrabBroken *event,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
if (event->grab_window == NULL)
gtk_combo_box_popdown (combo_box);
return TRUE;
}
/**
* gtk_combo_box_popup:
* @combo_box: a #GtkComboBox
@ -2455,6 +2468,11 @@ gtk_combo_box_popup_for_device (GtkComboBox *combo_box,
gtk_device_grab_add (priv->popup_window, pointer, TRUE);
priv->grab_pointer = pointer;
priv->grab_keyboard = keyboard;
g_signal_connect (priv->popup_window,
"grab-broken-event",
G_CALLBACK (gtk_combo_box_grab_broken_event),
combo_box);
}
static void
@ -2521,6 +2539,10 @@ gtk_combo_box_popdown (GtkComboBox *combo_box)
if (!gtk_widget_get_realized (GTK_WIDGET (combo_box)))
return;
if (priv->grab_keyboard)
gdk_device_ungrab (priv->grab_keyboard, GDK_CURRENT_TIME);
gdk_device_ungrab (priv->grab_pointer, GDK_CURRENT_TIME);
gtk_device_grab_remove (priv->popup_window, priv->grab_pointer);
gtk_widget_hide (priv->popup_window);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),