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popover: make smarter wrt previous focus widget lifetime

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If the previous focus widget is unmapped (eg. hidden, scheduled for
destruction, etc), make the popover forget about it and grant focus
back to the window itself.
This commit is contained in:
Carlos Garnacho 2014-12-02 15:44:04 +01:00
parent af2ac29faf
commit ccdcff9456
1 changed files with 42 additions and 15 deletions
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51
gtk/gtkpopover.c
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@ -125,6 +125,7 @@ struct _GtkPopoverPrivate
GtkAdjustment *vadj;
GtkAdjustment *hadj;
GdkRectangle pointing_to;
guint prev_focus_unmap_id;
guint hierarchy_changed_id;
guint size_allocate_id;
guint unmap_id;
@ -234,6 +235,24 @@ gtk_popover_finalize (GObject *object)
G_OBJECT_CLASS (gtk_popover_parent_class)->finalize (object);
}
static void
popover_unset_prev_focus (GtkPopover *popover)
{
GtkPopoverPrivate *priv = popover->priv;
if (!priv->prev_focus_widget)
return;
if (priv->prev_focus_unmap_id)
{
g_signal_handler_disconnect (priv->prev_focus_widget,
priv->prev_focus_unmap_id);
priv->prev_focus_unmap_id = 0;
}
g_clear_object (&priv->prev_focus_widget);
}
static void
gtk_popover_dispose (GObject *object)
{
@ -250,11 +269,7 @@ gtk_popover_dispose (GObject *object)
if (priv->widget)
gtk_popover_update_relative_to (popover, NULL);
if (priv->prev_focus_widget)
{
g_object_unref (priv->prev_focus_widget);
priv->prev_focus_widget = NULL;
}
popover_unset_prev_focus (popover);
G_OBJECT_CLASS (gtk_popover_parent_class)->dispose (object);
}
@ -353,6 +368,13 @@ window_set_focus (GtkWindow *window,
gtk_widget_hide (GTK_WIDGET (popover));
}
static void
prev_focus_unmap_cb (GtkWidget *widget,
GtkPopover *popover)
{
popover_unset_prev_focus (popover);
}
static void
gtk_popover_apply_modality (GtkPopover *popover,
gboolean modal)
@ -369,8 +391,14 @@ gtk_popover_apply_modality (GtkPopover *popover,
prev_focus = gtk_window_get_focus (priv->window);
priv->prev_focus_widget = prev_focus;
if (priv->prev_focus_widget)
{
priv->prev_focus_unmap_id =
g_signal_connect (prev_focus, "unmap",
G_CALLBACK (prev_focus_unmap_cb), popover);
g_object_ref (prev_focus);
}
gtk_grab_add (GTK_WIDGET (popover));
gtk_window_set_focus (priv->window, NULL);
gtk_widget_grab_focus (GTK_WIDGET (popover));
g_signal_connect (priv->window, "focus-in-event",
@ -385,15 +413,14 @@ gtk_popover_apply_modality (GtkPopover *popover,
g_signal_handlers_disconnect_by_data (priv->window, popover);
gtk_grab_remove (GTK_WIDGET (popover));
if (priv->prev_focus_widget)
{
/* Let prev_focus_widget regain focus */
if (gtk_widget_is_drawable (priv->prev_focus_widget))
if (priv->prev_focus_widget &&
gtk_widget_is_drawable (priv->prev_focus_widget))
gtk_widget_grab_focus (priv->prev_focus_widget);
else
gtk_widget_grab_focus (GTK_WIDGET (priv->window));
g_object_unref (priv->prev_focus_widget);
priv->prev_focus_widget = NULL;
}
popover_unset_prev_focus (popover);
}
}
@ -1589,7 +1616,7 @@ gtk_popover_update_relative_to (GtkPopover *popover,
priv->window = NULL;
}
g_clear_object (&priv->prev_focus_widget);
popover_unset_prev_focus (popover);
if (priv->widget)
{