[gtk+] label: Destroy the popup menu on unmap

[Timm Bäder <baedert src gnome org>]

commit 41c8446631066505b145914fe58fb84ff4fad997
Author: Timm Bäder <mail baedert org>
Date:   Tue Jul 19 14:40:52 2016 +0200

    label: Destroy the popup menu on unmap

 gtk/gtklabel.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 342dadf..649ac2c 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -4578,7 +4578,15 @@ gtk_label_unmap (GtkWidget *widget)
   GtkLabelPrivate *priv = label->priv;
 
   if (priv->select_info)
-    gdk_window_hide (priv->select_info->window);
+    {
+      gdk_window_hide (priv->select_info->window);
+
+      if (priv->select_info->popup_menu)
+        {
+          gtk_widget_destroy (priv->select_info->popup_menu);
+          priv->select_info->popup_menu = NULL;
+        }
+    }
 
   GTK_WIDGET_CLASS (gtk_label_parent_class)->unmap (widget);
 }