Implement popup menu for friends

sugar/canvas/Grid.py

@@ -4,6 +4,11 @@ import cairo
 
 class Grid:
 	COLS = 80.0
+	ROWS = 60.0
+
+	def convert_from_screen(self, x, y):
+		factor = Grid.COLS / gtk.gdk.screen_width()
+		return [int(x * factor), int(y * factor)]
 
 	def set_constraints(self, component, x, y, width=-1, height=-1):
 		if isinstance(component, gtk.Window):
@@ -26,12 +31,16 @@ class Grid:
 		matrix.translate(x * scale, y * scale)
 		item.set_transform(matrix)
 
+		# FIXME This is really hacky
 		if width > 0 and height > 0:
 			try:
 				item.props.width = width * scale
 				item.props.height = height * scale
 			except:
-				item.props.size = width * scale
+				try:
+					item.props.size = width * scale
+				except:
+					pass
 
 	def _layout_canvas(self, canvas, x, y, width, height):
 		scale = 1200 / Grid.COLS

sugar/canvas/IconItem.py

@@ -169,6 +169,10 @@ class IconItem(goocanvas.ItemSimple, goocanvas.Item):
 	__gsignals__ = {
 		'clicked': (gobject.SIGNAL_RUN_FIRST,
 					gobject.TYPE_NONE, ([])),
+		'popup':   (gobject.SIGNAL_RUN_FIRST,
+					gobject.TYPE_NONE, ([int, int, int, int])),
+		'popdown': (gobject.SIGNAL_RUN_FIRST,
+					gobject.TYPE_NONE, ([])),
 	}
 
 	__gproperties__ = {
@@ -227,8 +231,23 @@ class IconItem(goocanvas.ItemSimple, goocanvas.Item):
 
 	def do_create_view(self, canvas, parent_view):
 		view = IconView(canvas, parent_view, self)
-		view.connect('button-press-event', self.__button_press_cb)
+		view.connect('button-press-event', self._button_press_cb)
+		view.connect('enter-notify-event', self._enter_notify_event_cb, canvas)
+		view.connect('leave-notify-event', self._leave_notify_event_cb)
 		return view
 
-	def __button_press_cb(self, view, target, event):
+	def _button_press_cb(self, view, target, event):
 		self.emit('clicked')
+
+	def _enter_notify_event_cb(self, view, target, event, canvas):
+		[x1, y1] = canvas.convert_to_pixels(view.get_bounds().x1,
+								 		    view.get_bounds().y1)
+		[x2, y2] = canvas.convert_to_pixels(view.get_bounds().x2,
+								 		    view.get_bounds().y2)
+		self.emit('popup', int(x1), int(y1), int(x2), int(y2))
+
+	def _popdown(self):
+		self.emit('popdown')
+
+	def _leave_notify_event_cb(self, view, target, event):
+		gobject.timeout_add(1000, self._popdown)