Get activity bar and activity creation to work

shell/HomeWindow.py

@@ -3,17 +3,27 @@ import goocanvas
 
 from sugar.canvas.IconItem import IconItem
 
+class ActivityItem(IconItem):
+	def __init__(self, activity):
+		IconItem.__init__(self, activity.get_icon(), 'white', 30)
+		self._activity = activity
+
+	def get_activity_id(self):
+		return self._activity.get_id()
+
 class ActivityBar(goocanvas.Group):
-	def __init__(self, registry):
+	def __init__(self, shell):
 		goocanvas.Group.__init__(self)
 
+		self._shell = shell
+
+		registry = shell.get_registry()
 		for activity in registry.list_activities():
 			if activity.get_show_launcher():
 				self.add_activity(activity)
 
 	def add_activity(self, activity):
-		item = IconItem(icon_name=activity.get_icon(),
-						color='white', width=42, height=42)
+		item = ActivityItem(activity)
 		self.add_child(item)
 
 class Background(goocanvas.Group):
@@ -43,7 +53,8 @@ class Model(goocanvas.CanvasModelSimple):
 		background = Background()
 		root.add_child(background)
 
-		activity_bar = ActivityBar(shell.get_registry())
+		activity_bar = ActivityBar(shell)
+		activity_bar.translate(50, 860)
 		root.add_child(activity_bar)
 
 class HomeWindow(gtk.Window):
@@ -55,14 +66,27 @@ class HomeWindow(gtk.Window):
 		self.connect('realize', self.__realize_cb)
 
 		canvas = goocanvas.CanvasView()
+
 		canvas_model = Model(shell)
 		canvas.set_bounds(0, 0, 1200, 900)
 		canvas.set_scale(float(800) / float(1200))
 		canvas.set_size_request(800, 600)
+
+		canvas.connect("item_view_created", self.__item_view_created_cb)
+
 		self.add(canvas)
 		canvas.show()
 
 		canvas.set_model(canvas_model)
 
+	def __item_view_created_cb(self, view, item_view, item):
+		if isinstance(item, ActivityItem):
+			item_view.connect("button_press_event",
+							  self.__activity_button_press_cb,
+							  item.get_activity_id())
+
+	def __activity_button_press_cb(self, view, target, event, activity_id):
+		self._shell.start_activity(activity_id)
+
 	def __realize_cb(self, window):
 		self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DESKTOP)