From 70e6d08f8d0fc385b8e7c539b09fced609b9c5a4 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Date: Wed, 04 Jul 2007 10:33:12 +0000
Subject: Hide active palette if zoom level changes.

---
diff --git a/shell/shellservice.py b/shell/shellservice.py
index b4c96ff..dd5e224 100644
--- a/shell/shellservice.py
+++ b/shell/shellservice.py
@@ -56,11 +56,13 @@ class ShellService(dbus.service.Object):
         self._home_model.connect('active-activity-changed',
                                  self._cur_activity_changed_cb)
 
+        self._shell_model.connect('notify::zoom-level',
+                                  self._shell_model_notify_zoom_level_cb)
+        
         bus = dbus.SessionBus()
         bus_name = dbus.service.BusName(_DBUS_SERVICE, bus=bus)
         dbus.service.Object.__init__(self, bus_name, _DBUS_PATH)
 
-
     @dbus.service.method(_DBUS_SHELL_IFACE,
                          in_signature="ss", out_signature="")
     def NotifyLaunch(self, bundle_id, activity_id):
@@ -146,6 +148,10 @@ class ShellService(dbus.service.Object):
     def CurrentActivityChanged(self, activity_id):
         pass
 
+    @dbus.service.signal(_DBUS_SHELL_IFACE, signature="i")
+    def ZoomLevelChanged(self, new_level):
+        pass
+
     def _cur_activity_changed_cb(self, owner, new_activity):
         new_id = ""
         if new_activity:
@@ -153,6 +159,9 @@ class ShellService(dbus.service.Object):
         if new_id:
             self.CurrentActivityChanged(new_id)
 
+    def _shell_model_notify_zoom_level_cb(self, shell_model, pspec):
+        self.ZoomLevelChanged(shell_model.props.zoom_level)
+
     def _bundle_to_dict(self, bundle):
         return {'name': bundle.get_name(),
                 'icon': bundle.get_icon(),
diff --git a/sugar/graphics/palette.py b/sugar/graphics/palette.py
index ef1a61c..9c23c2f 100644
--- a/sugar/graphics/palette.py
+++ b/sugar/graphics/palette.py
@@ -21,6 +21,7 @@ import gtk
 import gobject
 import time
 import hippo
+import dbus
 
 from sugar.graphics import animator
 from sugar.graphics import units
@@ -87,6 +88,15 @@ class Palette(gobject.GObject):
         self._menu.connect('button-press-event',
                            self._button_press_event_cb)
 
+        gobject.idle_add(self._listen_for_zoom_level_change)
+
+    def _listen_for_zoom_level_change(self):
+        bus = dbus.Bus()
+        proxy = bus.get_object('org.laptop.Shell', '/org/laptop/Shell')
+        shell_service = dbus.Interface(proxy, 'org.laptop.Shell')
+        shell_service.connect_to_signal('ZoomLevelChanged',
+                                        self._zoom_level_changed_cb)
+
     def set_primary_text(self, label, accel_path=None):
         self._primary.set_label(label, accel_path)
 
@@ -234,6 +244,9 @@ class Palette(gobject.GObject):
     def _button_press_event_cb(self, widget, event):
         pass
 
+    def _zoom_level_changed_cb(self, zoom_level):
+        self._hide()
+
 class _PrimaryMenuItem(gtk.MenuItem):
     def __init__(self, label, accel_path):
         gtk.MenuItem.__init__(self)
@@ -378,6 +391,8 @@ class CanvasInvoker(Invoker):
         context = self._item.get_context()
         if context:
             x, y = context.translate_to_screen(self._item)
+        else:
+            x, y = 0, 0
 
         width, height = self._item.get_allocation()
 
--
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