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Fix window button updates in split headers

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We were only updating window buttons when the headerbar was
a direct child of the window. That is not the case in more
complicated situations, such as the split headers in gedit
or polari. To fix such cases, make the headerbar itself listen
for state changes on its toplevel.

https://bugzilla.gnome.org/show_bug.cgi?id=747805
This commit is contained in:
Matthias Clasen 2015-04-14 17:05:34 -04:00
parent b53abebaea
commit c8d6231c3c
1 changed files with 31 additions and 0 deletions
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31
gtk/gtkheaderbar.c
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@ -1812,6 +1812,36 @@ gtk_header_bar_unrealize (GtkWidget *widget)
GTK_WIDGET_CLASS (gtk_header_bar_parent_class)->unrealize (widget);
}
static gboolean
window_state_changed (GtkWidget *window,
GdkEventWindowState *event,
gpointer data)
{
GtkHeaderBar *bar = GTK_HEADER_BAR (data);
if (event->changed_mask & (GDK_WINDOW_STATE_FULLSCREEN | GDK_WINDOW_STATE_MAXIMIZED | GDK_WINDOW_STATE_TILED))
_gtk_header_bar_update_window_buttons (bar);
return FALSE;
}
static void
gtk_header_bar_hierarchy_changed (GtkWidget *widget,
GtkWidget *previous_toplevel)
{
GtkWidget *toplevel;
toplevel = gtk_widget_get_toplevel (widget);
if (previous_toplevel)
g_signal_handlers_disconnect_by_func (previous_toplevel,
window_state_changed, widget);
if (toplevel)
g_signal_connect_after (toplevel, "window-state-event",
G_CALLBACK (window_state_changed), widget);
}
static void
gtk_header_bar_class_init (GtkHeaderBarClass *class)
{
@ -1831,6 +1861,7 @@ gtk_header_bar_class_init (GtkHeaderBarClass *class)
widget_class->draw = gtk_header_bar_draw;
widget_class->realize = gtk_header_bar_realize;
widget_class->unrealize = gtk_header_bar_unrealize;
widget_class->hierarchy_changed = gtk_header_bar_hierarchy_changed;
container_class->add = gtk_header_bar_add;
container_class->remove = gtk_header_bar_remove;