From a6f01575d19ffaae326b10b1752a04b427901f13 Mon Sep 17 00:00:00 2001
From: Vincent Vinet <vince.vinet@gmail.com>
Date: Wed, 09 Dec 2009 01:08:04 +0000
Subject: allow the FrameOverlayer to bind itself to a widget for show/hide

---
(limited to 'tutorius/overlayer.py')

diff --git a/tutorius/overlayer.py b/tutorius/overlayer.py
index 5eb0f49..6b75e8a 100644
--- a/tutorius/overlayer.py
+++ b/tutorius/overlayer.py
@@ -20,6 +20,9 @@ drawing management (Overlayer) and basic overlayable widgets are defined here.
 
 import gobject
 import gtk
+import logging
+LOGGER=logging.getLogger("tutorius.overlayer")
+
 from gtk.gdk import screen_width, screen_height
 import cairo
 import pangocairo
@@ -162,11 +165,14 @@ class Overlayer(gtk.Layout):
             self._overlayed.set_size_request(allocation.width, allocation.height)
 
 class FrameOverlayer(gtk.Window):
-    def __init__(self):
+    def __init__(self, bind_to=None):
         gtk.Window.__init__(self)
         self._vbox = gtk.VBox()
         self._overlayer = Overlayer(self._vbox)
         self.add(self._overlayer)
+        if bind_to:
+            self._child_map_id = bind_to.connect_after("map", self._child_map_event)
+            self._child_hide_id = bind_to.connect_after("hide", self._child_hide_event)
         self._vbox.show()
         self._overlayer.show()
         self.show_all()
@@ -182,6 +188,16 @@ class FrameOverlayer(gtk.Window):
         self.fullscreen() # Cover the entire screen
         self.expose = self.connect("expose-event", self.apply_mask)
 
+    def _child_map_event(self, widget):
+        LOGGER.debug("map %s", str(widget))
+        #When the child is shown
+        self.show()
+
+    def _child_hide_event(self, widget):
+        LOGGER.debug("hide %s", str(widget))
+        #When the child is hiden
+        self.hide()
+
     def show(self):
         gtk.Window.show(self)
 
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