sugar-toolkit-gtk3/src/sugar3/activity/htmlactivity.py

# Copyright (C) 2013 Daniel Narvaez
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

import os

from gi.repository import Gdk
from gi.repository import Gio
from gi.repository import WebKit2

from sugar3.activity import activity


class HTMLActivity(activity.Activity):
    def __init__(self, handle):
        activity.Activity.__init__(self, handle)

        self.connect("key-press-event", self._key_press_event_cb)

        context = WebKit2.WebContext.get_default()
        context.register_uri_scheme("activity", self._app_scheme_cb, None)

        self._web_view = WebKit2.WebView()
        self._web_view.connect("load-changed", self._loading_changed_cb)

        self.set_canvas(self._web_view)
        self._web_view.show()

        settings = self._web_view.get_settings()
        settings.set_property("enable-developer-extras", True)

        index_path = os.path.join(activity.get_bundle_path(), "index.html")
        self._web_view.load_uri("activity://%s/%s" %
                                (self.get_bundle_id(), index_path))

    def _loading_changed_cb(self, web_view, load_event):
        if load_event == WebKit2.LoadEvent.FINISHED:
            key = os.environ["SUGAR_APISOCKET_KEY"]
            port = os.environ["SUGAR_APISOCKET_PORT"]

            script = "window.sugarKey = '%s'; " \
                     "window.sugarPort = '%s'; " \
                     "window.sugarId = '%s'; " \
                     "if (window.onSugarAuthSet) " \
                     "window.onSugarAuthSet();" % (key, port, self.get_id())

            self._web_view.run_javascript(script, None, None, None)

    def _key_press_event_cb(self, window, event):
        key_name = Gdk.keyval_name(event.keyval)

        if event.get_state() & Gdk.ModifierType.CONTROL_MASK and \
           event.get_state() & Gdk.ModifierType.SHIFT_MASK:
            if key_name == "I":
                inspector = self._web_view.get_inspector()
                if inspector.is_attached():
                    inspector.close()
                else:
                    inspector.show()

    def _app_scheme_cb(self, request, user_data):
        path = os.path.join(activity.get_bundle_path(), request.get_path())

        request.finish(Gio.File.new_for_path(path).read(None),
                       -1, Gio.content_type_guess(path, None)[0])