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browser.py
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browser.py
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# Copyright (C) 2006, Red Hat, Inc.
# Copyright (C) 2007, One Laptop Per Child
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import time
import logging
from gettext import gettext as _
import gobject
import gtk
import hulahop
import xpcom
from xpcom.nsError import *
from xpcom import components
from xpcom.components import interfaces
from hulahop.webview import WebView
from sugar.datastore import datastore
from sugar import profile
from sugar import env
from sugar.activity import activity
from sugar.graphics import style
import sessionstore
from palettes import ContentInvoker
from sessionhistory import HistoryListener
from progresslistener import ProgressListener
from usercode import ScriptListener
_ZOOM_AMOUNT = 0.1
class GetSourceListener(object):
_com_interfaces_ = interfaces.nsIWebProgressListener
def __init__(self, file_path, async_cb, async_err_cb):
self._file_path = file_path
self._async_cb = async_cb
self._async_err_cb = async_err_cb
def onStateChange(self, webProgress, request, stateFlags, status):
if stateFlags & interfaces.nsIWebProgressListener.STATE_IS_REQUEST and \
stateFlags & interfaces.nsIWebProgressListener.STATE_STOP:
self._async_cb(self._file_path)
def onProgressChange(self, progress, request, curSelfProgress,
maxSelfProgress, curTotalProgress, maxTotalProgress):
pass
def onLocationChange(self, progress, request, location):
pass
def onStatusChange(self, progress, request, status, message):
pass
def onSecurityChange(self, progress, request, state):
pass
class CommandListener(object):
_com_interfaces_ = interfaces.nsIDOMEventListener
def __init__(self, window):
self._window = window
def handleEvent(self, event):
if not event.isTrusted:
return
uri = event.originalTarget.ownerDocument.documentURI
if not uri.startswith('about:neterror?e=nssBadCert'):
return
cls = components.classes['@sugarlabs.org/add-cert-exception;1']
cert_exception = cls.createInstance(interfaces.hulahopAddCertException)
cert_exception.showDialog(self._window)
class Browser(WebView):
AGENT_SHEET = os.path.join(activity.get_bundle_path(),
'agent-stylesheet.css')
USER_SHEET = os.path.join(activity.get_activity_root(),
'data/style.user.css')
def __init__(self):
WebView.__init__(self)
self.history = HistoryListener()
self.progress = ProgressListener()
self.userscript = ScriptListener()
cls = components.classes["@mozilla.org/typeaheadfind;1"]
self.typeahead = cls.createInstance(interfaces.nsITypeAheadFind)
self._jobject = None
io_service_class = components.classes[ \
"@mozilla.org/network/io-service;1"]
io_service = io_service_class.getService(interfaces.nsIIOService)
# Use xpcom to turn off "offline mode" detection, which disables
# access to localhost for no good reason. (Trac #6250.)
io_service2 = io_service_class.getService(interfaces.nsIIOService2)
io_service2.manageOfflineStatus = False
cls = components.classes['@mozilla.org/content/style-sheet-service;1']
self.style_sheet_service = cls.getService(
interfaces.nsIStyleSheetService)
if os.path.exists(Browser.AGENT_SHEET):
agent_sheet_uri = io_service.newURI('file:///' +
Browser.AGENT_SHEET,
None, None)
self.style_sheet_service.loadAndRegisterSheet(agent_sheet_uri,
interfaces.nsIStyleSheetService.AGENT_SHEET)
if os.path.exists(Browser.USER_SHEET):
self.user_sheet_uri = io_service.newURI('file:///' +
Browser.USER_SHEET,
None, None)
self.style_sheet_service.loadAndRegisterSheet(self.user_sheet_uri,
interfaces.nsIStyleSheetService.USER_SHEET)
def do_setup(self):
WebView.do_setup(self)
listener = xpcom.server.WrapObject(ContentInvoker(self),
interfaces.nsIDOMEventListener)
self.window_root.addEventListener('click', listener, False)
listener = xpcom.server.WrapObject(CommandListener(self.dom_window),
interfaces.nsIDOMEventListener)
self.window_root.addEventListener('command', listener, False)
self.progress.setup(self)
self.history.setup(self.web_navigation)
self.userscript.setup(self)
self.typeahead.init(self.doc_shell)
def get_session(self):
return sessionstore.get_session(self)
def set_session(self, data):
return sessionstore.set_session(self, data)
def update_userstyle(self):
if self.style_sheet_service.sheetRegistered(self.user_sheet_uri,
interfaces.nsIStyleSheetService.USER_SHEET):
self.style_sheet_service.unregisterSheet(self.user_sheet_uri,
interfaces.nsIStyleSheetService.USER_SHEET)
self.style_sheet_service.loadAndRegisterSheet(self.user_sheet_uri,
interfaces.nsIStyleSheetService.USER_SHEET)
def get_source(self, async_cb, async_err_cb):
cls = components.classes[ \
'@mozilla.org/embedding/browser/nsWebBrowserPersist;1']
persist = cls.createInstance(interfaces.nsIWebBrowserPersist)
# get the source from the cache
persist.persistFlags = \
interfaces.nsIWebBrowserPersist.PERSIST_FLAGS_FROM_CACHE
temp_path = os.path.join(activity.get_activity_root(), 'instance')
file_path = os.path.join(temp_path, '%i' % time.time())
cls = components.classes["@mozilla.org/file/local;1"]
local_file = cls.createInstance(interfaces.nsILocalFile)
local_file.initWithPath(file_path)
progresslistener = GetSourceListener(file_path, async_cb, async_err_cb)
persist.progressListener = xpcom.server.WrapObject(
progresslistener, interfaces.nsIWebProgressListener)
uri = self.web_navigation.currentURI
persist.saveURI(uri, self.doc_shell, None, None, None, local_file)
def zoom_in(self):
contentViewer = self.doc_shell.queryInterface( \
interfaces.nsIDocShell).contentViewer
if contentViewer is not None:
markupDocumentViewer = contentViewer.queryInterface( \
interfaces.nsIMarkupDocumentViewer)
markupDocumentViewer.fullZoom += _ZOOM_AMOUNT
def zoom_out(self):
contentViewer = self.doc_shell.queryInterface( \
interfaces.nsIDocShell).contentViewer
if contentViewer is not None:
markupDocumentViewer = contentViewer.queryInterface( \
interfaces.nsIMarkupDocumentViewer)
markupDocumentViewer.fullZoom -= _ZOOM_AMOUNT
class PopupDialog(gtk.Window):
def __init__(self):
gtk.Window.__init__(self)
self.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
border = style.GRID_CELL_SIZE
self.set_default_size(gtk.gdk.screen_width() - border * 2,
gtk.gdk.screen_height() - border * 2)
self.view = WebView()
self.add(self.view)
self.view.realize()
class WindowCreator:
_com_interfaces_ = interfaces.nsIWindowCreator
def createChromeWindow(self, parent, flags):
dialog = PopupDialog()
parent_dom_window = parent.webBrowser.contentDOMWindow
parent_view = hulahop.get_view_for_window(parent_dom_window)
if parent_view:
dialog.set_transient_for(parent_view.get_toplevel())
browser = dialog.view.browser
if flags & interfaces.nsIWebBrowserChrome.CHROME_OPENAS_CHROME:
dialog.view.is_chrome = True
item = browser.queryInterface(interfaces.nsIDocShellTreeItem)
item.itemType = interfaces.nsIDocShellTreeItem.typeChromeWrapper
return browser.containerWindow
window_creator = WindowCreator()
cls = components.classes['@mozilla.org/embedcomp/window-watcher;1']
window_watcher = cls.getService(interfaces.nsIWindowWatcher)
window_watcher.setWindowCreator(window_creator)