import logging

from sugar.graphics.canvasicon import CanvasIcon
from view.clipboardmenu import ClipboardMenu
from sugar.graphics.iconcolor import IconColor
from sugar.graphics import units
from sugar.activity import activityfactory
from sugar.clipboard import clipboardservice
from sugar import util

class ClipboardIcon(CanvasIcon):

    def __init__(self, popup_context, object_id, name):
        CanvasIcon.__init__(self)
        self._popup_context = popup_context
        self._object_id = object_id
        self._name = name
        self._percent = 0
        self._preview = None
        self._activity = None
        self.props.box_width = units.grid_to_pixels(1)
        self.props.box_height = units.grid_to_pixels(1)
        self.props.scale = units.STANDARD_ICON_SCALE
        self.connect('activated', self._icon_activated_cb)
        self._menu = None
        
    def get_popup(self):
        self._menu = ClipboardMenu(self._name, self._percent, self._preview,
                                   self._activity)
        self._menu.connect('action', self._popup_action_cb)
        return self._menu

    def get_popup_context(self):
        return self._popup_context

    def set_state(self, name, percent, icon_name, preview, activity):
        self._name = name
        self._percent = percent
        self._preview = preview
        self._activity = activity
        self.set_property("icon_name", icon_name)
        if self._menu:
            self._menu.set_state(name, percent, preview, activity)

        if activity and percent < 100:
            self.set_property('color', IconColor("#000000,#424242"))
        else:
            self.set_property('color', IconColor("#000000,#FFFFFF"))
    
    def _activity_create_success_cb(self, handler, activity):
        activity.start(util.unique_id())
        activity.execute("open_document", [self._object_id])

    def _activity_create_error_cb(self, handler, err):
        pass

    def _open_file(self):
        if self._percent < 100 or not self._activity:
            return

        logging.debug("_icon_activated_cb: " + self._object_id)

        # Launch the activity to handle this item
        handler = activityfactory.create(self._activity)
        handler.connect('success', self._activity_create_success_cb)
        handler.connect('error', self._activity_create_error_cb)

    def _icon_activated_cb(self, icon):
        self._open_file()
                        
    def _popup_action_cb(self, popup, menu_item):
        action = menu_item.props.action_id
        
        if action == ClipboardMenu.ACTION_STOP_DOWNLOAD:
            raise "Stopping downloads still not implemented."
        elif action == ClipboardMenu.ACTION_DELETE:
            cb_service = clipboardservice.get_instance()
            cb_service.delete_object(self._object_id)
        elif action == ClipboardMenu.ACTION_OPEN:
            self._open_file()
        
    def get_object_id(self):
        return self._object_id