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GtkWidget: Avoid lingering clock frame updates

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For some widgets, like GtkTreeView, which setup a clock frame
update during realize, it was possible to call
gdk_frame_clock_begin_updating() twice, but only ever disconnecting
from it once. This happens because the realized flag is set at an
unpredictable time by the GtkWidget's realize implementation.

Keep the signal handler ID from us connecting to the "update" signal
to avoid connecting to it twice.

This fixes high wake-up count from any application using GtkTreeView,
even idle ones.

https://bugzilla.gnome.org/show_bug.cgi?id=710666
This commit is contained in:
Bastien Nocera 2013-10-22 18:42:01 +02:00
parent 438cd857c4
commit 7c12e6480b
1 changed files with 15 additions and 16 deletions
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31
gtk/gtkwidget.c
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@ -510,6 +510,7 @@ struct _GtkWidgetPrivate
/* Animations and other things to update on clock ticks */
GList *tick_callbacks;
guint clock_tick_id;
/* A hash by GType key, containing hash tables by widget name
*/
@ -4731,12 +4732,11 @@ unref_tick_callback_info (GtkWidget *widget,
g_slice_free (GtkTickCallbackInfo, info);
}
if (priv->tick_callbacks == NULL && priv->realized)
if (priv->tick_callbacks == NULL && priv->clock_tick_id)
{
GdkFrameClock *frame_clock = gtk_widget_get_frame_clock (widget);
g_signal_handlers_disconnect_by_func (frame_clock,
(gpointer) gtk_widget_on_frame_clock_update,
widget);
g_signal_handler_disconnect (frame_clock, priv->clock_tick_id);
priv->clock_tick_id = 0;
gdk_frame_clock_end_updating (frame_clock);
}
}
@ -4834,12 +4834,12 @@ gtk_widget_add_tick_callback (GtkWidget *widget,
priv = widget->priv;
if (priv->tick_callbacks == NULL && priv->realized)
if (priv->realized && !priv->clock_tick_id)
{
GdkFrameClock *frame_clock = gtk_widget_get_frame_clock (widget);
g_signal_connect (frame_clock, "update",
G_CALLBACK (gtk_widget_on_frame_clock_update),
widget);
priv->clock_tick_id = g_signal_connect (frame_clock, "update",
G_CALLBACK (gtk_widget_on_frame_clock_update),
widget);
gdk_frame_clock_begin_updating (frame_clock);
}
@ -4898,11 +4898,11 @@ gtk_widget_connect_frame_clock (GtkWidget *widget,
if (GTK_IS_CONTAINER (widget))
_gtk_container_maybe_start_idle_sizer (GTK_CONTAINER (widget));
if (priv->tick_callbacks != NULL)
if (priv->tick_callbacks != NULL && !priv->clock_tick_id)
{
g_signal_connect (frame_clock, "update",
G_CALLBACK (gtk_widget_on_frame_clock_update),
widget);
priv->clock_tick_id = g_signal_connect (frame_clock, "update",
G_CALLBACK (gtk_widget_on_frame_clock_update),
widget);
gdk_frame_clock_begin_updating (frame_clock);
}
@ -4919,11 +4919,10 @@ gtk_widget_disconnect_frame_clock (GtkWidget *widget,
if (GTK_IS_CONTAINER (widget))
_gtk_container_stop_idle_sizer (GTK_CONTAINER (widget));
if (priv->tick_callbacks)
if (priv->clock_tick_id)
{
g_signal_handlers_disconnect_by_func (frame_clock,
(gpointer) gtk_widget_on_frame_clock_update,
widget);
g_signal_handler_disconnect (frame_clock, priv->clock_tick_id);
priv->clock_tick_id = 0;
gdk_frame_clock_end_updating (frame_clock);
}