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# Copyright (C) 2007, Red Hat, Inc.
#
# 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 logging
from gettext import gettext as _
import gtk, gobject
import evince
import hippo
import os
import tempfile
import time
import dbus
from sugar.activity import activity
from sugar import network
from readtoolbar import EditToolbar, ReadToolbar, ViewToolbar
_HARDWARE_MANAGER_INTERFACE = 'org.laptop.HardwareManager'
_HARDWARE_MANAGER_SERVICE = 'org.laptop.HardwareManager'
_HARDWARE_MANAGER_OBJECT_PATH = '/org/laptop/HardwareManager'
_TOOLBAR_READ = 2
class ReadHTTPRequestHandler(network.ChunkedGlibHTTPRequestHandler):
def translate_path(self, path):
return self.server._filepath
class ReadHTTPServer(network.GlibTCPServer):
def __init__(self, server_address, filepath):
self._filepath = filepath
network.GlibTCPServer.__init__(self, server_address, ReadHTTPRequestHandler)
class ReadActivity(activity.Activity):
def __init__(self, handle):
activity.Activity.__init__(self, handle)
self._document = None
self._filepath = None
self._fileserver = None
self.connect('key-press-event', self._key_press_event_cb)
self.connect('key-release-event', self._key_release_event_cb)
logging.debug('Starting read...')
evince.job_queue_init()
self._view = evince.View()
self._view.connect('notify::has-selection', self._view_notify_has_selection_cb)
toolbox = activity.ActivityToolbox(self)
self._edit_toolbar = EditToolbar(self._view)
self._edit_toolbar.undo.props.visible = False
self._edit_toolbar.redo.props.visible = False
self._edit_toolbar.separator.props.visible = False
self._edit_toolbar.copy.set_sensitive(False)
self._edit_toolbar.copy.connect('clicked', self._edit_toolbar_copy_cb)
self._edit_toolbar.paste.props.visible = False
toolbox.add_toolbar(_('Edit'), self._edit_toolbar)
self._edit_toolbar.show()
self._read_toolbar = ReadToolbar(self._view)
toolbox.add_toolbar(_('Read'), self._read_toolbar)
self._read_toolbar.show()
self._view_toolbar = ViewToolbar(self._view)
toolbox.add_toolbar(_('View'), self._view_toolbar)
self._view_toolbar.show()
self.set_toolbox(toolbox)
toolbox.show()
scrolled = gtk.ScrolledWindow()
scrolled.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
scrolled.props.shadow_type = gtk.SHADOW_NONE
scrolled.add(self._view)
self._view.show()
self.set_canvas(scrolled)
scrolled.show()
# Set up for idle suspend
self._idle_timer = 0
self._service = None
# start with sleep off
self._sleep_inhibit = True
if os.path.exists(os.path.expanduser("~/ebook-enable-sleep")):
try:
bus = dbus.SystemBus()
proxy = bus.get_object(_HARDWARE_MANAGER_SERVICE,
_HARDWARE_MANAGER_OBJECT_PATH)
self._service = dbus.Interface(proxy, _HARDWARE_MANAGER_INTERFACE)
scrolled.props.vadjustment.connect("value-changed", self._user_action_cb)
scrolled.props.hadjustment.connect("value-changed", self._user_action_cb)
self.connect("focus-in-event", self._focus_in_event_cb)
self.connect("focus-out-event", self._focus_out_event_cb)
self.connect("notify::active", self._now_active_cb)
except dbus.DBusException, e:
logging.info('Hardware manager service not found, no idle suspend.')
self.connect("shared", self._shared_cb)
h = hash(self._activity_id)
self.port = 1024 + (h % 64511)
if handle.uri:
self._load_document(handle.uri)
# start on the read toolbar
self.toolbox.set_current_toolbar(_TOOLBAR_READ)
if self._shared_activity or not self._document:
self._tried_buddies = []
if self.get_shared():
# Already joined for some reason, just get the document
self._get_document()
else:
# Wait for a successful join before trying to get the document
self.connect("joined", self._joined_cb)
def _now_active_cb(self, widget, pspec):
if self.props.active:
# Now active, start initial suspend timeout
if self._idle_timer > 0:
gobject.source_remove(self._idle_timer)
self._idle_timer = gobject.timeout_add(15000, self._suspend_cb)
self._sleep_inhibit = False
else:
# Now inactive
self._sleep_inhibit = True
def _focus_in_event_cb(self, widget, event):
self._sleep_inhibit = False
self._user_action_cb(self)
def _focus_out_event_cb(self, widget, event):
self._sleep_inhibit = True
def _user_action_cb(self, widget):
if self._idle_timer > 0:
gobject.source_remove(self._idle_timer)
self._idle_timer = gobject.timeout_add(5000, self._suspend_cb)
def _suspend_cb(self):
# If the machine has been idle for 5 seconds, suspend
self._idle_timer = 0
if not self._sleep_inhibit:
self._service.set_kernel_suspend()
return False
def read_file(self, file_path):
"""Load a file from the datastore on activity start"""
logging.debug('ReadActivity.read_file: ' + file_path)
self._load_document('file://' + file_path)
def write_file(self, file_path):
"""We only save meta data, not the document itself.
current page, view settings, search text."""
try:
self.metadata['Read_current_page'] = \
str(self._document.get_page_cache().get_current_page())
self.metadata['Read_zoom'] = str(self._view.props.zoom)
if self._view.props.sizing_mode == evince.SIZING_BEST_FIT:
self.metadata['Read_sizing_mode'] = "best-fit"
elif self._view.props.sizing_mode == evince.SIZING_FREE:
self.metadata['Read_sizing_mode'] = "free"
elif self._view.props.sizing_mode == evince.SIZING_FIT_WIDTH:
self.metadata['Read_sizing_mode'] = "fit-width"
else:
logging.error("Don't know how to save sizing_mode state '%s'" %
self._view.props.sizing_mode)
self.metadata['Read_sizing_mode'] = "fit-width"
self.metadata['Read_search'] = self._edit_toolbar._search_entry.props.text
except Exception, e:
logging.error('write_file(): %s', e)
def _download_result_cb(self, getter, tempfile, suggested_name, buddy):
del self._tried_buddies
logging.debug("Got document %s (%s) from %s (%s)" % (tempfile, suggested_name, buddy.props.nick, buddy.props.ip4_address))
self._load_document("file://%s" % tempfile)
logging.debug("Saving %s to datastore..." % tempfile)
self.save()
def _download_error_cb(self, getter, err, buddy):
logging.debug("Error getting document from %s (%s): %s" % (buddy.props.nick, buddy.props.ip4_address, err))
self._tried_buddies.append(buddy)
gobject.idle_add(self._get_document)
def _download_document(self, buddy):
getter = network.GlibURLDownloader("http://%s:%d/document" % (buddy.props.ip4_address, self.port))
getter.connect("finished", self._download_result_cb, buddy)
getter.connect("error", self._download_error_cb, buddy)
logging.debug("Starting download to %s..." % self._jobject.file_path)
getter.start(self._jobject.file_path)
return False
def _get_document(self):
# Assign a file path to download if one doesn't exist yet
if not self._jobject.file_path:
self._jobject.file_path = os.path.join(tempfile.gettempdir(), '%i' % time.time())
self._owns_file = True
next_buddy = None
# Find the next untried buddy with an IP4 address we can try to
# download the document from
for buddy in self._shared_activity.get_joined_buddies():
if buddy.props.owner:
continue
if not buddy in self._tried_buddies:
if buddy.props.ip4_address:
next_buddy = buddy
break
if not next_buddy:
logging.debug("Couldn't find a buddy to get the document from.")
return False
gobject.idle_add(self._download_document, buddy)
return False
def _joined_cb(self, activity):
gobject.idle_add(self._get_document)
def _load_document(self, filepath):
if self._document:
del self._document
self._document = evince.factory_get_document(filepath)
self._view.set_document(self._document)
self._edit_toolbar.set_document(self._document)
self._read_toolbar.set_document(self._document)
if not self.metadata['title_set_by_user'] == '1':
info = self._document.get_info()
if info and info.title:
self.metadata['title'] = info.title
import urllib
garbage, path = urllib.splittype(filepath)
garbage, path = urllib.splithost(path or "")
path, garbage = urllib.splitquery(path or "")
path, garbage = urllib.splitattr(path or "")
self._filepath = os.path.abspath(path)
current_page = int(self.metadata.get('Read_current_page', '0'))
self._document.get_page_cache().set_current_page(current_page)
sizing_mode = self.metadata.get('Read_sizing_mode', 'fit-width')
if sizing_mode == "best-fit":
self._view.props.sizing_mode = evince.SIZING_BEST_FIT
elif sizing_mode == "free":
self._view.props.sizing_mode = evince.SIZING_FREE
self._view.props.zoom = float(self.metadata.get('Read_zoom', '1.0'))
elif sizing_mode == "fit-width":
self._view.props.sizing_mode = evince.SIZING_FIT_WIDTH
else:
# this may happen when we get a document from a buddy with a later
# version of Read, for example.
logging.warning("Unknown sizing_mode state '%s'" % sizing_mode)
if self.metadata.get('Read_zoom', None) is not None:
self._view.props.zoom = float(self.metadata['Read_zoom'])
self._view_toolbar._update_zoom_buttons()
self._edit_toolbar._search_entry.props.text = \
self.metadata.get('Read_search', '')
# When we get the document, start up our sharing services
if self.get_shared():
self._start_shared_services()
def _start_shared_services(self):
self._fileserver = ReadHTTPServer(("", self.port), self._filepath)
def _shared_cb(self, activity):
self._start_shared_services()
def _view_notify_has_selection_cb(self, view, pspec):
self._edit_toolbar.copy.set_sensitive(self._view.props.has_selection)
def _edit_toolbar_copy_cb(self, button):
self._view.copy()
def _key_press_event_cb(self, widget, event):
keyname = gtk.gdk.keyval_name(event.keyval)
logging.debug("Keyname Press: %s, time: %s", keyname, event.time)
if keyname == 'c' and event.state & gtk.gdk.CONTROL_MASK:
self._view.copy()
def _key_release_event_cb(self, widget, event):
keyname = gtk.gdk.keyval_name(event.keyval)
logging.debug("Keyname Release: %s, time: %s", keyname, event.time)
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