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button: Clear highlight when a button is removed from a container

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A button is highlighted if the private variable in_button is TRUE.
This variable is set when the pointer is over the button and cleared when
it left the button. When a button is hidden while there is the pointer over
it, GTK generates a leave notification event, in_button is set to FALSE.
But when a button is removed from a container but not destroyed, it is
unrealized and loose its window. It cannot receive the leave notification
event and in_button stay TRUE. So when the button get a new parent it is still
highlighted.

https://bugzilla.gnome.org/show_bug.cgi?id=676890
This commit is contained in:
Sébastien Granjoux 2012-05-26 22:32:07 +02:00 committed by Matthias Clasen
parent f9e435df43
commit af5ecd77e3
1 changed files with 4 additions and 1 deletions
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5
gtk/gtkbutton.c
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@ -1461,7 +1461,10 @@ gtk_button_unmap (GtkWidget *widget)
GtkButtonPrivate *priv = button->priv;
if (priv->event_window)
gdk_window_hide (priv->event_window);
{
gdk_window_hide (priv->event_window);
priv->in_button = FALSE;
}
GTK_WIDGET_CLASS (gtk_button_parent_class)->unmap (widget);
}