sugar-toolkit-gtk3/shell/view/frame/ZoomBox.py

import goocanvas
import hippo

from sugar.graphics.canvasicon import CanvasIcon
from sugar.graphics.menuicon import MenuIcon
from sugar.graphics.menu import Menu
from sugar.graphics import style
from view.frame.MenuStrategy import MenuStrategy
import sugar

class ActivityMenu(Menu):
	ACTION_SHARE = 1
	ACTION_CLOSE = 2

	def __init__(self, grid, activity_host):
		Menu.__init__(self, activity_host.get_title())

		icon = CanvasIcon(icon_name='stock-share-mesh')
		style.apply_stylesheet(icon, 'menu-action-icon')
		self.add_action(icon, ActivityMenu.ACTION_SHARE) 

		icon = CanvasIcon(icon_name='stock-close')
		style.apply_stylesheet(icon, 'menu-action-icon')
		self.add_action(icon, ActivityMenu.ACTION_CLOSE) 

class ActivityIcon(MenuIcon):
	def __init__(self, shell, menu_shell, activity_host):
		self._shell = shell
		self._activity_host = activity_host

		icon_name = activity_host.get_icon_name()
		icon_color = activity_host.get_icon_color()

		MenuIcon.__init__(self, menu_shell, icon_name=icon_name,
						  color=icon_color)

		self.set_menu_strategy(MenuStrategy())

	def create_menu(self):
		menu = ActivityMenu(self._shell.get_grid(), self._activity_host)
		menu.connect('action', self._action_cb)
		return menu

	def _action_cb(self, menu, action):
		self.popdown()

		activity = self._shell.get_current_activity()
		if activity == None:
			return

		if action == ActivityMenu.ACTION_SHARE:
			activity.share()
		if action == ActivityMenu.ACTION_CLOSE:
			activity.close()

class ZoomBox(hippo.CanvasBox):
	def __init__(self, shell, menu_shell):
		hippo.CanvasBox.__init__(self, orientation=hippo.ORIENTATION_HORIZONTAL)

		self._shell = shell
		self._menu_shell = menu_shell
		self._activity_icon = None

		icon = CanvasIcon(icon_name='stock-zoom-mesh')
		style.apply_stylesheet(icon, 'frame-zoom-icon')
		icon.connect('activated', self._level_clicked_cb, sugar.ZOOM_MESH)
		self.append(icon)

		icon = CanvasIcon(icon_name='stock-zoom-friends')
		style.apply_stylesheet(icon, 'frame-zoom-icon')
		icon.connect('activated', self._level_clicked_cb, sugar.ZOOM_FRIENDS)
		self.append(icon)

		icon = CanvasIcon(icon_name='stock-zoom-home')
		style.apply_stylesheet(icon, 'frame-zoom-icon')
		icon.connect('activated', self._level_clicked_cb, sugar.ZOOM_HOME)
		self.append(icon)

		icon = CanvasIcon(icon_name='stock-zoom-activity')
		style.apply_stylesheet(icon, 'frame-zoom-icon')
		icon.connect('activated', self._level_clicked_cb, sugar.ZOOM_ACTIVITY)
		self.append(icon)

		shell.connect('activity-changed', self._activity_changed_cb)
		self._set_current_activity(shell.get_current_activity())

	def _set_current_activity(self, activity):
		if self._activity_icon:
			self.remove(self._activity_icon)

		if activity:
			icon = ActivityIcon(self._shell, self._menu_shell, activity)
			style.apply_stylesheet(icon, 'frame-zoom-icon')
			self.append(icon, 0)
			self._activity_icon = icon
		else:
			self._activity_icon = None

	def _activity_changed_cb(self, shell_model, activity):
		self._set_current_activity(activity)

	def _level_clicked_cb(self, item, level):
		self._shell.set_zoom_level(level)