# Copyright (C) 2007, Red Hat, Inc. # Copyright (C) 2007 Collabora Ltd. # Copyright 2008 One Laptop Per Child # Copyright 2009 Simon Schampijer # # 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 import os import time from gettext import gettext as _ import re import md5 import dbus import gobject import gtk import pango from glib import GError import telepathy from sugar.activity import activity from sugar.graphics.toolbutton import ToolButton from sugar.graphics.toolbarbox import ToolbarBox from sugar.graphics.toolbarbox import ToolbarButton from sugar.graphics.toggletoolbutton import ToggleToolButton from sugar.graphics.menuitem import MenuItem from sugar.activity.widgets import ActivityToolbarButton from sugar.activity.widgets import StopButton from sugar import network from sugar import mime from sugar.datastore import datastore from sugar.graphics.objectchooser import ObjectChooser from readtoolbar import EditToolbar from readtoolbar import ViewToolbar from readtoolbar import SpeechToolbar from readsidebar import Sidebar from readtopbar import TopBar from readdb import BookmarkManager import epubadapter import evinceadapter import textadapter import speech _HARDWARE_MANAGER_INTERFACE = 'org.laptop.HardwareManager' _HARDWARE_MANAGER_SERVICE = 'org.laptop.HardwareManager' _HARDWARE_MANAGER_OBJECT_PATH = '/org/laptop/HardwareManager' _TOOLBAR_READ = 2 _logger = logging.getLogger('read-activity') def _get_screen_dpi(): xft_dpi = gtk.settings_get_default().get_property('gtk-xft-dpi') _logger.debug('Setting dpi to %f', float(xft_dpi / 1024)) return float(xft_dpi / 1024) def get_md5(filename): #FIXME: Should be moved somewhere else filename = filename.replace('file://', '') # XXX: hack fh = open(filename) digest = md5.new() while 1: buf = fh.read(4096) if buf == "": break digest.update(buf) fh.close() return digest.hexdigest() class ReadHTTPRequestHandler(network.ChunkedGlibHTTPRequestHandler): """HTTP Request Handler for transferring document while collaborating. RequestHandler class that integrates with Glib mainloop. It writes the specified file to the client in chunks, returning control to the mainloop between chunks. """ def translate_path(self, path): """Return the filepath to the shared document.""" return self.server.filepath class ReadHTTPServer(network.GlibTCPServer): """HTTP Server for transferring document while collaborating.""" def __init__(self, server_address, filepath): """Set up the GlibTCPServer with the ReadHTTPRequestHandler. filepath -- path to shared document to be served. """ self.filepath = filepath network.GlibTCPServer.__init__(self, server_address, ReadHTTPRequestHandler) class ReadURLDownloader(network.GlibURLDownloader): """URLDownloader that provides content-length and content-type.""" def get_content_length(self): """Return the content-length of the download.""" if self._info is not None: return int(self._info.headers.get('Content-Length')) def get_content_type(self): """Return the content-type of the download.""" if self._info is not None: return self._info.headers.get('Content-type') return None READ_STREAM_SERVICE = 'read-activity-http' class ReadActivity(activity.Activity): """The Read sugar activity.""" def __init__(self, handle): activity.Activity.__init__(self, handle) self._document = None self._fileserver = None self._object_id = handle.object_id self._toc_model = None self.connect('key-press-event', self._key_press_event_cb) self.connect('key-release-event', self._key_release_event_cb) _logger.debug('Starting Read...') self._view = None self.dpi = _get_screen_dpi() self._sidebar = Sidebar() self._sidebar.show() toolbar_box = ToolbarBox() activity_button = ActivityToolbarButton(self) toolbar_box.toolbar.insert(activity_button, 0) activity_button.show() self._edit_toolbar = EditToolbar() 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 edit_toolbar_button = ToolbarButton( page=self._edit_toolbar, icon_name='toolbar-edit') self._edit_toolbar.show() toolbar_box.toolbar.insert(edit_toolbar_button, -1) edit_toolbar_button.show() self._view_toolbar = ViewToolbar() self._view_toolbar.connect('go-fullscreen', self.__view_toolbar_go_fullscreen_cb) view_toolbar_button = ToolbarButton( page=self._view_toolbar, icon_name='toolbar-view') self._view_toolbar.show() toolbar_box.toolbar.insert(view_toolbar_button, -1) view_toolbar_button.show() self._back_button = self._create_back_button() toolbar_box.toolbar.insert(self._back_button, -1) self._back_button.show() self._forward_button = self._create_forward_button() toolbar_box.toolbar.insert(self._forward_button, -1) self._forward_button.show() num_page_item = gtk.ToolItem() self._num_page_entry = self._create_search() num_page_item.add(self._num_page_entry) self._num_page_entry.show() toolbar_box.toolbar.insert(num_page_item, -1) num_page_item.show() total_page_item = gtk.ToolItem() self._total_page_label = self._create_total_page_label() total_page_item.add(self._total_page_label) self._total_page_label.show() toolbar_box.toolbar.insert(total_page_item, -1) total_page_item.show() spacer = gtk.SeparatorToolItem() spacer.props.draw = False toolbar_box.toolbar.insert(spacer, -1) spacer.show() navigator_toolbar = gtk.Toolbar() navigator_item = gtk.ToolItem() self._navigator = self._create_navigator() navigator_item.add(self._navigator) self._navigator.show() navigator_toolbar.insert(navigator_item, -1) navigator_item.show() self._navigator_toolbar_button = ToolbarButton(page=navigator_toolbar, icon_name='view-list') navigator_toolbar.show() toolbar_box.toolbar.insert(self._navigator_toolbar_button, -1) #navigator_toolbar_button.show() spacer = gtk.SeparatorToolItem() spacer.props.draw = False toolbar_box.toolbar.insert(spacer, -1) spacer.show() bookmark_item = gtk.ToolItem() self._bookmarker = self._create_bookmarker() self._bookmarker_toggle_handler_id = self._bookmarker.connect( \ 'toggled', self.__bookmarker_toggled_cb) bookmark_item.add(self._bookmarker) self._bookmarker.show() toolbar_box.toolbar.insert(bookmark_item, -1) bookmark_item.show() self._highlight_item = gtk.ToolItem() self._highlight = ToggleToolButton('format-text-underline') self._highlight.set_tooltip(_('Highlight')) self._highlight.props.sensitive = False self._highlight_id = self._highlight.connect('clicked', \ self.__highlight_cb) self._highlight_item.add(self._highlight) toolbar_box.toolbar.insert(self._highlight_item, -1) self._highlight_item.show_all() self.speech_toolbar = SpeechToolbar(self) self.speech_toolbar_button = ToolbarButton(page=self.speech_toolbar, icon_name='speak') toolbar_box.toolbar.insert(self.speech_toolbar_button, -1) separator = gtk.SeparatorToolItem() separator.props.draw = False separator.set_expand(True) toolbar_box.toolbar.insert(separator, -1) separator.show() stop_button = StopButton(self) toolbar_box.toolbar.insert(stop_button, -1) stop_button.show() self.set_toolbar_box(toolbar_box) toolbar_box.show() self._vbox = gtk.VBox() self._vbox.show() self._topbar = TopBar() self._vbox.pack_start(self._topbar, expand=False, fill=False) self._hbox = gtk.HBox() self._hbox.show() self._hbox.pack_start(self._sidebar, expand=False, fill=False) self._vbox.pack_start(self._hbox, expand=True, fill=True) self.set_canvas(self._vbox) # Set up for idle suspend self._idle_timer = 0 self._service = None # start with sleep off self._sleep_inhibit = True self.unused_download_tubes = set() self._want_document = True self._download_content_length = 0 self._download_content_type = None # Status of temp file used for write_file: self._tempfile = None self._close_requested = False fname = os.path.join('/etc', 'inhibit-ebook-sleep') if not os.path.exists(fname): try: bus = dbus.SystemBus() proxy = bus.get_object(_HARDWARE_MANAGER_SERVICE, _HARDWARE_MANAGER_OBJECT_PATH) self._service = dbus.Interface(proxy, _HARDWARE_MANAGER_INTERFACE) self._scrolled.props.vadjustment.connect("value-changed", self._user_action_cb) self._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) _logger.debug('Suspend on idle enabled') except dbus.DBusException, e: _logger.info( 'Hardware manager service not found, no idle suspend.') else: _logger.debug('Suspend on idle disabled') self.connect("shared", self._shared_cb) h = hash(self._activity_id) self.port = 1024 + (h % 64511) if handle.uri: self._load_document(handle.uri) if self.shared_activity: # We're joining if self.get_shared(): # Already joined for some reason, just get the document self._joined_cb(self) else: # Wait for a successful join before trying to get the document self.connect("joined", self._joined_cb) elif self._object_id is None: # Not joining, not resuming self._show_journal_object_picker() # uncomment this and adjust the path for easier testing #else: # self._load_document('file:///home/smcv/tmp/test.pdf') def fullscreen(self): self._topbar.show_all() activity.Activity.fullscreen(self) def unfullscreen(self): self._topbar.hide() activity.Activity.unfullscreen(self) def _create_back_button(self): back = ToolButton('go-previous') back.set_tooltip(_('Back')) back.props.sensitive = False palette = back.get_palette() previous_page = MenuItem(text_label=_("Previous page")) palette.menu.append(previous_page) previous_page.show_all() previous_bookmark = MenuItem(text_label=_("Previous bookmark")) palette.menu.append(previous_bookmark) previous_bookmark.show_all() back.connect('clicked', self.__go_back_cb) previous_page.connect('activate', self.__go_back_page_cb) previous_bookmark.connect('activate', self.__prev_bookmark_activate_cb) return back def _create_forward_button(self): forward = ToolButton('go-next') forward.set_tooltip(_('Forward')) forward.props.sensitive = False palette = forward.get_palette() next_page = MenuItem(text_label=_("Next page")) palette.menu.append(next_page) next_page.show_all() next_bookmark = MenuItem(text_label=_("Next bookmark")) palette.menu.append(next_bookmark) next_bookmark.show_all() forward.connect('clicked', self.__go_forward_cb) next_page.connect('activate', self.__go_forward_page_cb) next_bookmark.connect('activate', self.__next_bookmark_activate_cb) return forward def _create_search(self): num_page_entry = gtk.Entry() num_page_entry.set_text('0') num_page_entry.set_alignment(1) num_page_entry.connect('insert-text', self.__num_page_entry_insert_text_cb) num_page_entry.connect('activate', self.__num_page_entry_activate_cb) num_page_entry.set_width_chars(4) return num_page_entry def _create_total_page_label(self): total_page_label = gtk.Label() label_attributes = pango.AttrList() label_attributes.insert(pango.AttrSize(14000, 0, -1)) label_attributes.insert(pango.AttrForeground(65535, 65535, 65535, 0, -1)) total_page_label.set_attributes(label_attributes) total_page_label.set_text(' / 0') return total_page_label def _create_navigator(self): navigator = gtk.ComboBox() navigator.set_add_tearoffs(True) cell = gtk.CellRendererText() navigator.pack_start(cell, True) navigator.add_attribute(cell, 'text', 0) navigator.props.visible = False return navigator def _create_bookmarker(self): bookmarker = ToggleToolButton('emblem-favorite') return bookmarker def __num_page_entry_insert_text_cb(self, entry, text, length, position): if not re.match('[0-9]', text): entry.emit_stop_by_name('insert-text') return True return False def __num_page_entry_activate_cb(self, entry): if entry.props.text: page = int(entry.props.text) - 1 else: page = 0 self._view.set_current_page(page) entry.props.text = str(page + 1) def __go_back_cb(self, button): self._view.scroll(gtk.SCROLL_PAGE_BACKWARD, False) def __go_forward_cb(self, button): self._view.scroll(gtk.SCROLL_PAGE_FORWARD, False) def __go_back_page_cb(self, button): self._view.previous_page() def __go_forward_page_cb(self, button): self._view.next_page() def __highlight_cb(self, button): tuples_list = self._bookmarkmanager.get_highlights( self._view.get_current_page()) selection_tuple = self._view.get_selection_bounds() cursor_position = self._view.get_cursor_position() old_highlight_found = None for compare_tuple in tuples_list: if selection_tuple: if selection_tuple[0] >= compare_tuple[0] and \ selection_tuple[1] <= compare_tuple[1]: old_highlight_found = compare_tuple break if cursor_position >= compare_tuple[0] and \ cursor_position <= compare_tuple[1]: old_highlight_found = compare_tuple break if old_highlight_found == None: self._bookmarkmanager.add_highlight( self._view.get_current_page(), selection_tuple) else: self._bookmarkmanager.del_highlight( self._view.get_current_page(), old_highlight_found) self._view.show_highlights(self._bookmarkmanager.get_highlights( self._view.get_current_page())) def __prev_bookmark_activate_cb(self, menuitem): page = self._view.get_current_page() prev_bookmark = self._bookmarkmanager.get_prev_bookmark_for_page(page) if prev_bookmark is not None: self._view.set_current_page(prev_bookmark.page_no) def __next_bookmark_activate_cb(self, menuitem): page = self._view.get_current_page() next_bookmark = self._bookmarkmanager.get_next_bookmark_for_page(page) if next_bookmark is not None: self._view.set_current_page(next_bookmark.page_no) def __bookmarker_toggled_cb(self, button): page = self._view.get_current_page() if self._bookmarker.props.active: self._sidebar.add_bookmark(page) else: self._sidebar.del_bookmark(page) def __page_changed_cb(self, model, page_from, page_to): self._update_nav_buttons() if self._toc_model != None: self._toc_select_active_page() self._sidebar.update_for_page(self._view.get_current_page()) self._bookmarker.handler_block(self._bookmarker_toggle_handler_id) self._bookmarker.props.active = \ self._sidebar.is_showing_local_bookmark() self._bookmarker.handler_unblock(self._bookmarker_toggle_handler_id) tuples_list = self._bookmarkmanager.get_highlights( self._view.get_current_page()) if self._view.can_highlight(): self._view.show_highlights(tuples_list) def _update_nav_buttons(self): current_page = self._view.get_current_page() self._back_button.props.sensitive = current_page > 0 self._forward_button.props.sensitive = \ current_page < self._view.get_pagecount() - 1 self._num_page_entry.props.text = str(current_page + 1) self._total_page_label.props.label = \ ' / ' + str(self._view.get_pagecount()) def _update_toc(self): if self._view.update_toc(self): self._navigator_changed_handler_id = \ self._navigator.connect('changed', self.__navigator_changed_cb) def __navigator_changed_cb(self, combobox): iter = self._navigator.get_active_iter() link = self._toc_model.get(iter, 1)[0] self._view.handle_link(link) def _toc_select_active_page_foreach(self, model, path, iter, current_page): link = self._toc_model.get(iter, 1)[0] if not hasattr(link, 'get_page'): #FIXME: This needs to be implemented in epubadapter, not here filepath = self._view.get_current_file() if filepath.endswith(link): self._navigator.set_active_iter(iter) return True else: if current_page == link.get_page(): self._navigator.set_active_iter(iter) return True return False def _toc_select_active_page(self): iter = self._navigator.get_active_iter() current_link = self._toc_model.get(iter, 1)[0] current_page = self._view.get_current_page() if not hasattr(current_link, 'get_page'): filepath = self._view.get_current_file() if filepath is None or filepath.endswith(current_link): return else: if current_link.get_page() == current_page: return self._navigator.handler_block(self._navigator_changed_handler_id) self._toc_model.foreach(self._toc_select_active_page_foreach, current_page) self._navigator.handler_unblock(self._navigator_changed_handler_id) def _show_journal_object_picker(self): """Show the journal object picker to load a document. This is for if Read is launched without a document. """ if not self._want_document: return chooser = ObjectChooser(_('Choose document'), self, gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT, what_filter=mime.GENERIC_TYPE_TEXT) try: result = chooser.run() if result == gtk.RESPONSE_ACCEPT: logging.debug('ObjectChooser: %r' % chooser.get_selected_object()) jobject = chooser.get_selected_object() if jobject and jobject.file_path: self.read_file(jobject.file_path) finally: chooser.destroy() del chooser 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_seconds(15, self._suspend_cb) self._sleep_inhibit = False else: # Now inactive self._sleep_inhibit = True def _focus_in_event_cb(self, widget, event): """Enable ebook mode idle sleep since Read has focus.""" self._sleep_inhibit = False self._user_action_cb(self) def _focus_out_event_cb(self, widget, event): """Disable ebook mode idle sleep since Read lost focus.""" self._sleep_inhibit = True def _user_action_cb(self, widget): """Set a timer for going back to ebook mode idle sleep.""" if self._idle_timer > 0: gobject.source_remove(self._idle_timer) self._idle_timer = gobject.timeout_add_seconds(5, self._suspend_cb) def _suspend_cb(self): """Go into ebook mode idle sleep.""" # If the machine has been idle for 5 seconds, suspend self._idle_timer = 0 if not self._sleep_inhibit and not self.get_shared(): self._service.set_kernel_suspend() return False def read_file(self, file_path): """Load a file from the datastore on activity start.""" _logger.debug('ReadActivity.read_file: %s', file_path) extension = os.path.splitext(file_path)[1] tempfile = os.path.join(self.get_activity_root(), 'instance', 'tmp%i%s' % (time.time(), extension)) os.link(file_path, tempfile) self._tempfile = tempfile self._load_document('file://' + self._tempfile) # FIXME: This should obviously be fixed properly gobject.timeout_add_seconds(1, self.__view_toolbar_needs_update_size_cb, None) def write_file(self, file_path): """Write into datastore for Keep. The document is saved by hardlinking from the temporary file we keep around instead of "saving". The metadata is updated, including current page, view settings, search text. """ if self._tempfile is None: # Workaround for closing Read with no document loaded raise NotImplementedError try: self.metadata['Read_current_page'] = \ str(self._view.get_current_page()) self._view.update_metadata(self) self.metadata['Read_search'] = \ self._edit_toolbar._search_entry.props.text except Exception, e: _logger.error('write_file(): %s', e) self.metadata['Read_search'] = \ self._edit_toolbar._search_entry.props.text self.metadata['activity'] = self.get_bundle_id() os.link(self._tempfile, file_path) if self._close_requested: _logger.debug("Removing temp file %s because we will close", self._tempfile) os.unlink(self._tempfile) self._tempfile = None def can_close(self): """Prepare to cleanup on closing. Called from self.close() """ self._close_requested = True return True def _download_result_cb(self, getter, tempfile, suggested_name, tube_id): if self._download_content_type == 'text/html': # got an error page instead self._download_error_cb(getter, 'HTTP Error', tube_id) return del self.unused_download_tubes self._tempfile = tempfile file_path = os.path.join(self.get_activity_root(), 'instance', '%i' % time.time()) _logger.debug("Saving file %s to datastore...", file_path) os.link(tempfile, file_path) self._jobject.file_path = file_path datastore.write(self._jobject, transfer_ownership=True) _logger.debug("Got document %s (%s) from tube %u", tempfile, suggested_name, tube_id) self.save() self._load_document("file://%s" % tempfile) def _download_progress_cb(self, getter, bytes_downloaded, tube_id): # FIXME: Draw a progress bar if self._download_content_length > 0: _logger.debug("Downloaded %u of %u bytes from tube %u...", bytes_downloaded, self._download_content_length, tube_id) else: _logger.debug("Downloaded %u bytes from tube %u...", bytes_downloaded, tube_id) def _download_error_cb(self, getter, err, tube_id): _logger.debug("Error getting document from tube %u: %s", tube_id, err) self._want_document = True self._download_content_length = 0 self._download_content_type = None gobject.idle_add(self._get_document) def _download_document(self, tube_id, path): # FIXME: should ideally have the CM listen on a Unix socket # instead of IPv4 (might be more compatible with Rainbow) chan = self.shared_activity.telepathy_tubes_chan iface = chan[telepathy.CHANNEL_TYPE_TUBES] addr = iface.AcceptStreamTube(tube_id, telepathy.SOCKET_ADDRESS_TYPE_IPV4, telepathy.SOCKET_ACCESS_CONTROL_LOCALHOST, 0, utf8_strings=True) _logger.debug('Accepted stream tube: listening address is %r', addr) # SOCKET_ADDRESS_TYPE_IPV4 is defined to have addresses of type '(sq)' assert isinstance(addr, dbus.Struct) assert len(addr) == 2 assert isinstance(addr[0], str) assert isinstance(addr[1], (int, long)) assert addr[1] > 0 and addr[1] < 65536 port = int(addr[1]) getter = ReadURLDownloader("http://%s:%d/document" % (addr[0], port)) getter.connect("finished", self._download_result_cb, tube_id) getter.connect("progress", self._download_progress_cb, tube_id) getter.connect("error", self._download_error_cb, tube_id) _logger.debug("Starting download to %s...", path) getter.start(path) self._download_content_length = getter.get_content_length() self._download_content_type = getter.get_content_type() return False def _get_document(self): if not self._want_document: return False # Assign a file path to download if one doesn't exist yet if not self._jobject.file_path: path = os.path.join(self.get_activity_root(), 'instance', 'tmp%i' % time.time()) else: path = self._jobject.file_path # Pick an arbitrary tube we can try to download the document from try: tube_id = self.unused_download_tubes.pop() except (ValueError, KeyError), e: _logger.debug('No tubes to get the document from right now: %s', e) return False # Avoid trying to download the document multiple times at once self._want_document = False gobject.idle_add(self._download_document, tube_id, path) return False def _joined_cb(self, also_self): """Callback for when a shared activity is joined. Get the shared document from another participant. """ self.watch_for_tubes() gobject.idle_add(self._get_document) def _load_document(self, filepath): """Load the specified document and set up the UI. filepath -- string starting with file:// """ filename = filepath.replace('file://', '') if not os.path.exists(filename) or os.path.getsize(filename) == 0: return mimetype = mime.get_for_file(filepath) if mimetype == 'application/epub+zip': self._view = epubadapter.EpubViewer() elif mimetype == 'text/plain' or mimetype == 'application/zip': self._view = textadapter.TextViewer() else: self._view = evinceadapter.EvinceViewer() self._view.setup(self) self._view.load_document(filepath) self._want_document = False self._view_toolbar.set_view(self._view) self._edit_toolbar.set_view(self._view) self._topbar.set_view(self._view) filehash = get_md5(filepath) self._bookmarkmanager = BookmarkManager(filehash) self._sidebar.set_bookmarkmanager(self._bookmarkmanager) self._update_nav_buttons() self._update_toc() self._view.connect_page_changed_handler(self.__page_changed_cb) self._view.load_metadata(self) self._update_toolbars() self._edit_toolbar._search_entry.props.text = \ self.metadata.get('Read_search', '') current_page = int(self.metadata.get('Read_current_page', '0')) _logger.debug('Setting page to: %d', current_page) self._view.set_current_page(current_page) # We've got the document, so if we're a shared activity, offer it try: if self.get_shared(): self.watch_for_tubes() self._share_document() except Exception, e: _logger.debug('Sharing failed: %s', e) def _update_toolbars(self): self._view_toolbar._update_zoom_buttons() if not self._view.can_highlight(): self._highlight_item.hide() if speech.supported and self._view.can_do_text_to_speech(): self.speech_toolbar_button.show() self.speech_toolbar_button.show() def _share_document(self): """Share the document.""" # FIXME: should ideally have the fileserver listen on a Unix socket # instead of IPv4 (might be more compatible with Rainbow) _logger.debug('Starting HTTP server on port %d', self.port) self._fileserver = ReadHTTPServer(("", self.port), self._tempfile) # Make a tube for it chan = self.shared_activity.telepathy_tubes_chan iface = chan[telepathy.CHANNEL_TYPE_TUBES] self._fileserver_tube_id = iface.OfferStreamTube(READ_STREAM_SERVICE, {}, telepathy.SOCKET_ADDRESS_TYPE_IPV4, ('127.0.0.1', dbus.UInt16(self.port)), telepathy.SOCKET_ACCESS_CONTROL_LOCALHOST, 0) def watch_for_tubes(self): """Watch for new tubes.""" tubes_chan = self.shared_activity.telepathy_tubes_chan tubes_chan[telepathy.CHANNEL_TYPE_TUBES].connect_to_signal('NewTube', self._new_tube_cb) tubes_chan[telepathy.CHANNEL_TYPE_TUBES].ListTubes( reply_handler=self._list_tubes_reply_cb, error_handler=self._list_tubes_error_cb) def _new_tube_cb(self, tube_id, initiator, tube_type, service, params, state): """Callback when a new tube becomes available.""" _logger.debug('New tube: ID=%d initator=%d type=%d service=%s ' 'params=%r state=%d', tube_id, initiator, tube_type, service, params, state) if self._view is None and service == READ_STREAM_SERVICE: _logger.debug('I could download from that tube') self.unused_download_tubes.add(tube_id) # if no download is in progress, let's fetch the document if self._want_document: gobject.idle_add(self._get_document) def _list_tubes_reply_cb(self, tubes): """Callback when new tubes are available.""" for tube_info in tubes: self._new_tube_cb(*tube_info) def _list_tubes_error_cb(self, e): """Handle ListTubes error by logging.""" _logger.error('ListTubes() failed: %s', e) def _shared_cb(self, activityid): """Callback when activity shared. Set up to share the document. """ # We initiated this activity and have now shared it, so by # definition we have the file. _logger.debug('Activity became shared') self.watch_for_tubes() self._share_document() def _view_selection_changed_cb(self, view): self._edit_toolbar.copy.props.sensitive = view.get_has_selection() if self._view.can_highlight(): # Verify if the selection already exist or the cursor # is in a highlighted area cursor_position = self._view.get_cursor_position() logging.debug('cursor position %d' % cursor_position) selection_tuple = self._view.get_selection_bounds() tuples_list = self._bookmarkmanager.get_highlights( \ self._view.get_current_page()) in_bounds = False for highlight_tuple in tuples_list: logging.debug('control tuple %s' % str(highlight_tuple)) if selection_tuple: if selection_tuple[0] >= highlight_tuple[0] and \ selection_tuple[1] <= highlight_tuple[1]: in_bounds = True break if cursor_position >= highlight_tuple[0] and \ cursor_position <= highlight_tuple[1]: in_bounds = True break self._highlight.props.sensitive = \ view.get_has_selection() or in_bounds self._highlight.handler_block(self._highlight_id) self._highlight.set_active(in_bounds) self._highlight.handler_unblock(self._highlight_id) 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) if keyname == 'c' and event.state & gtk.gdk.CONTROL_MASK: self._view.copy() return True elif keyname == 'KP_Home': # FIXME: refactor later to self.zoom_in() self._view_toolbar.zoom_in() return True elif keyname == 'KP_End': self._view_toolbar.zoom_out() return True elif keyname == 'Page_Up' or keyname == 'KP_Page_Up': self._view.scroll(gtk.SCROLL_PAGE_BACKWARD, False) return True elif keyname == 'Page_Down' or keyname == 'KP_Page_Down': self._view.scroll(gtk.SCROLL_PAGE_FORWARD, False) return True elif keyname == 'Up' or keyname == 'KP_Up': self._view.scroll(gtk.SCROLL_STEP_BACKWARD, False) return True elif keyname == 'Down' or keyname == 'KP_Down': self._view.scroll(gtk.SCROLL_STEP_FORWARD, False) return True else: return False def _key_release_event_cb(self, widget, event): #keyname = gtk.gdk.keyval_name(event.keyval) #_logger.debug("Keyname Release: %s, time: %s", keyname, event.time) return False def __view_toolbar_needs_update_size_cb(self, view_toolbar): if hasattr(self._view, 'update_view_size'): self._view.update_view_size(self._scrolled) else: return False # No need again to run this again and def __view_toolbar_go_fullscreen_cb(self, view_toolbar): self.fullscreen()