# 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 hashlib import io import cairo import json import dbus import gi gi.require_version('Gtk', '3.0') gi.require_version('Gst', '1.0') gi.require_version('TelepathyGLib', '0.12') from gi.repository import GLib from gi.repository import GObject from gi.repository import Gtk from gi.repository import Gdk from gi.repository import Gio from gi.repository import TelepathyGLib GObject.threads_init() from sugar3.activity import activity from sugar3.graphics.toolbutton import ToolButton from sugar3.graphics.toolbarbox import ToolbarBox from sugar3.graphics.toolbarbox import ToolbarButton from sugar3.graphics.toggletoolbutton import ToggleToolButton from sugar3.graphics.alert import ConfirmationAlert from sugar3.graphics.alert import Alert from sugar3.activity.widgets import ActivityToolbarButton from sugar3.activity.widgets import StopButton from sugar3.graphics.tray import HTray from sugar3.graphics.menuitem import MenuItem from sugar3 import network from sugar3 import profile from sugar3.datastore import datastore from sugar3.graphics.objectchooser import ObjectChooser from sugar3.graphics.objectchooser import FILTER_TYPE_MIME_BY_ACTIVITY from sugar3.graphics import style import emptypanel from readtoolbar import EditToolbar from readtoolbar import ViewToolbar from bookmarkview import BookmarkView from readdb import BookmarkManager from linkbutton import LinkButton from speechtoolbar import SpeechToolbar _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, 'rb') digest = hashlib.md5() while 1: buf = fh.read(4096) if buf == b'': 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.""" if path.endswith('document'): return self.server.filepath if path.endswith('metadata'): return self.server.get_metadata_path() class ReadHTTPServer(network.GlibTCPServer): """HTTP Server for transferring document while collaborating.""" def __init__(self, server_address, filepath, create_metadata_cb): """Set up the GlibTCPServer with the ReadHTTPRequestHandler. filepath -- path to shared document to be served. """ self.filepath = filepath self._create_metadata_cb = create_metadata_cb network.GlibTCPServer.__init__(self, server_address, ReadHTTPRequestHandler) def get_metadata_path(self): return self._create_metadata_cb() 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 ProgressAlert(Alert): """ Progress alert with a progressbar - to show the advance of a task """ def __init__(self, timeout=5, **kwargs): Alert.__init__(self, **kwargs) self._pb = Gtk.ProgressBar() self._msg_box.pack_start(self._pb, False, False, 0) self._pb.set_size_request(int(Gdk.Screen.width() * 9. / 10.), -1) self._pb.set_fraction(0.0) self._pb.show() def set_fraction(self, fraction): # update only by 10% fractions if int(fraction * 100) % 10 == 0: self._pb.set_fraction(fraction) self._pb.queue_draw() # force updating the progressbar while Gtk.events_pending(): Gtk.main_iteration_do(True) class ReadActivity(activity.Activity): """The Read sugar activity.""" def __init__(self, handle): activity.Activity.__init__(self, handle) self.max_participants = 1 self._document = None self._fileserver = None self._object_id = handle.object_id self._toc_model = None self.filehash = 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._bookmark_view = BookmarkView() self._bookmark_view.connect('bookmark-changed', self._update_bookmark_cb) tray = HTray() self.set_tray(tray, Gtk.PositionType.BOTTOM) toolbar_box = ToolbarBox() self.activity_button = ActivityToolbarButton(self) toolbar_box.toolbar.insert(self.activity_button, 0) self.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._highlight = self._edit_toolbar.highlight self._highlight_id = self._highlight.connect('clicked', self.__highlight_cb) self._view_toolbar = ViewToolbar() self._view_toolbar.connect('go-fullscreen', self.__view_toolbar_go_fullscreen_cb) self._view_toolbar.connect('toggle-index-show', self.__toggle_navigator_cb) self._view_toolbar.connect('toggle-tray-show', self.__toggle_tray_cb) self._view_toolbar.connect('toggle-inverted-colors', self.__toggle_inverted_colors_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 = Gtk.Label() total_page_item.add(self._total_page_label) self._total_page_label.show() self._total_page_label.set_margin_right(5) toolbar_box.toolbar.insert(total_page_item, -1) total_page_item.show() self._bookmarker = ToggleToolButton('emblem-favorite') self._bookmarker_toggle_handler_id = self._bookmarker.connect( 'toggled', self.__bookmarker_toggled_cb) self._bookmarker.show() toolbar_box.toolbar.insert(self._bookmarker, -1) self.speech_toolbar_button = ToolbarButton(icon_name='speak') toolbar_box.toolbar.insert(self.speech_toolbar_button, -1) separator = Gtk.SeparatorToolItem() separator.props.draw = False separator.set_size_request(0, -1) 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() # This is needed to prevent the call of read_file on # canvas map, becuase interact in a bad way with the emptypanel # the program takes responsability of this task. self._read_file_called = True self._vbox = Gtk.VBox() self._vbox.show() overlay = Gtk.Overlay() self._hbox = Gtk.HBox() self._hbox.show() overlay.add(self._hbox) self._bookmark_view.props.halign = Gtk.Align.END self._bookmark_view.props.valign = Gtk.Align.START # HACK: This is to calculate the scrollbar width # defined in sugar-artwork gtk-widgets.css.em if style.zoom(1): scrollbar_width = 15 else: scrollbar_width = 11 self._bookmark_view.props.margin_right = scrollbar_width overlay.add_overlay(self._bookmark_view) overlay.show() self._vbox.pack_start(overlay, True, True, 0) self.set_canvas(self._vbox) self._navigator = self._create_navigator() # 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: _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) self._progress_alert = None if self._jobject.file_path is not None and \ self._jobject.file_path != '': self.read_file(self._jobject.file_path) elif handle.uri: self._load_document(handle.uri) # TODO: we need trasfer the metadata and uodate # bookmarks and urls elif self.shared_activity: # We're joining if self.get_shared(): # Already joined for some reason, just get the document self._joined_cb(self) else: self._progress_alert = ProgressAlert() self._progress_alert.props.title = _('Please wait') self._progress_alert.props.msg = _('Starting connection...') self.add_alert(self._progress_alert) # Wait for a successful join before trying to get the document self.connect("joined", self._joined_cb) else: # Not joining, not resuming or resuming session without file emptypanel.show(self, 'activity-read', _('No book'), _('Choose something to read'), self._show_journal_object_picker_cb) def _create_back_button(self): back = ToolButton('go-previous-paired') back.set_tooltip(_('Back')) back.props.sensitive = False palette = back.get_palette() previous_page = MenuItem(text_label=_("Previous page")) previous_page.show() previous_bookmark = MenuItem(text_label=_("Previous bookmark")) previous_bookmark.show() palette.menu.append(previous_page) palette.menu.append(previous_bookmark) 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-paired') forward.set_tooltip(_('Forward')) forward.props.sensitive = False palette = forward.get_palette() next_page = MenuItem(text_label=_("Next page")) next_page.show() next_bookmark = MenuItem(text_label=_("Next bookmark")) next_bookmark.show() palette.menu.append(next_page) palette.menu.append(next_bookmark) 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 _set_total_page_label(self, value): self._total_page_label.set_text(' / %s' % value) def show_navigator_button(self): self._view_toolbar.show_nav_button() def _create_navigator(self): def __cursor_changed_cb(treeview): selection = treeview.get_selection() store, index_iter = selection.get_selected() if index_iter is None: # Nothing selected. This happens at startup return if store.iter_has_child(index_iter): path = store.get_path(index_iter) if treeview.row_expanded(path): treeview.collapse_row(path) else: treeview.expand_row(path, False) self._toc_visible = False self._update_toc_view = False toc_navigator = Gtk.TreeView() toc_navigator.set_enable_search(False) toc_navigator.connect('cursor-changed', __cursor_changed_cb) toc_selection = toc_navigator.get_selection() toc_selection.set_mode(Gtk.SelectionMode.SINGLE) cell = Gtk.CellRendererText() self.treecol_toc = Gtk.TreeViewColumn(_('Index'), cell, text=0) toc_navigator.append_column(self.treecol_toc) self._toc_scroller = Gtk.ScrolledWindow(hadjustment=None, vadjustment=None) self._toc_scroller.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC) self._toc_scroller.add(toc_navigator) self._hbox.pack_start(self._toc_scroller, expand=False, fill=False, padding=0) self._toc_separator = Gtk.VSeparator() self._hbox.pack_start(self._toc_separator, expand=False, fill=False, padding=1) return toc_navigator def set_navigator_model(self, model): self._toc_model = model self._navigator.set_model(model) def __toggle_navigator_cb(self, button, visible): scrollbar_pos = -1 if hasattr(self._view, 'get_vertical_pos'): scrollbar_pos = self._view.get_vertical_pos() if visible: self._toc_visible = True self._update_toc_view = True self._toc_select_active_page() self._toc_scroller.set_size_request(int(Gdk.Screen.width() / 4), -1) self._toc_scroller.show_all() self._toc_separator.show() else: self._toc_visible = False self._toc_scroller.hide() self._toc_separator.hide() if scrollbar_pos > -1: self._view.set_vertical_pos(scrollbar_pos) def __toggle_tray_cb(self, button, visible): if visible: logging.debug('Show tray') self.tray.show() else: logging.debug('Hide tray') self.tray.hide() def __toggle_inverted_colors_cb(self, button, active): if hasattr(self._view._model, 'set_inverted_colors'): self._view._model.set_inverted_colors(active) 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.ScrollType.PAGE_BACKWARD, False) def __go_forward_cb(self, button): self._view.scroll(Gtk.ScrollType.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): self._view.toggle_highlight(button.get_active()) 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._bookmark_view.add_bookmark(page) else: alert = ConfirmationAlert() alert.props.title = _('Delete bookmark') alert.props.msg = _('All the information related ' 'with this bookmark will be lost') self.add_alert(alert) alert.connect('response', self.__alert_response_cb, page) alert.show() def __alert_response_cb(self, alert, response_id, page): self.remove_alert(alert) if response_id is Gtk.ResponseType.OK: self._bookmark_view.del_bookmark(page) elif response_id is Gtk.ResponseType.CANCEL: self._bookmarker.handler_block(self._bookmarker_toggle_handler_id) self._bookmarker.props.active = True self._bookmarker.handler_unblock( self._bookmarker_toggle_handler_id) def __page_changed_cb(self, model, page_from, page_to): self._update_nav_buttons(page_to) if self._toc_model is not None: self._toc_select_active_page() self._bookmark_view.update_for_page(page_to) self.update_bookmark_button() if self._view.can_highlight(): self._view.show_highlights(page_to) def _update_bookmark_cb(self, sidebar): self.update_bookmark_button() def update_bookmark_button(self): self._bookmarker.handler_block(self._bookmarker_toggle_handler_id) self._bookmarker.props.active = \ self._bookmark_view.is_showing_local_bookmark() self._bookmarker.handler_unblock(self._bookmarker_toggle_handler_id) def _update_nav_buttons(self, 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.handler_block_by_func( self.__num_page_entry_insert_text_cb) self._num_page_entry.props.text = str(current_page + 1) self._num_page_entry.handler_unblock_by_func( self.__num_page_entry_insert_text_cb) self._set_total_page_label(self._view.get_pagecount()) def _update_toc(self): if self._view.update_toc(self): self._navigator_changed_handler_id = \ self._navigator.connect('cursor-changed', self.__navigator_cursor_changed_cb) def __navigator_cursor_changed_cb(self, toc_treeview): if toc_treeview.get_selection() is None: return treestore, toc_selected = toc_treeview.get_selection().get_selected() if toc_selected is not None: link = self._toc_model.get(toc_selected, 1)[0] logging.debug('View handle link %s', link) self._update_toc_view = False self._view.handle_link(link) self._update_toc_view = True def _toc_select_active_page(self): if not self._toc_visible or not self._update_toc_view: return _store, toc_selected = self._navigator.get_selection().get_selected() if toc_selected is not None: selected_link = self._toc_model.get(toc_selected, 1)[0] else: selected_link = "" current_link = self._view.get_current_link() if current_link == selected_link: return link_iter = self._view.get_link_iter(current_link) if link_iter is not None: self._navigator.handler_block(self._navigator_changed_handler_id) toc_selection = self._navigator.get_selection() toc_selection.select_iter(link_iter) self._navigator.handler_unblock(self._navigator_changed_handler_id) else: logging.debug('link "%s" not found in the toc model', current_link) def _show_journal_object_picker_cb(self, button): """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(parent=self, what_filter=self.get_bundle_id(), filter_type=FILTER_TYPE_MIME_BY_ACTIVITY) try: result = chooser.run() if result == Gtk.ResponseType.ACCEPT: logging.debug('ObjectChooser: %r' % chooser.get_selected_object()) jobject = chooser.get_selected_object() if jobject and jobject.file_path: for key in list(jobject.metadata.keys()): self.metadata[key] = jobject.metadata[key] self.read_file(jobject.file_path) jobject.object_id = self._object_id 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: GLib.source_remove(self._idle_timer) self._idle_timer = GLib.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: GLib.source_remove(self._idle_timer) self._idle_timer = GLib.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) # enable collaboration self.activity_button.page.share.props.sensitive = True # we need copy the file to a new place, the file_path disappear 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._load_document('file://' + tempfile) # FIXME: This should obviously be fixed properly GLib.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 as 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() # the file is only saved if modified saved = False if hasattr(self._view, 'save'): saved = self._view.save(file_path) if saved: self.filehash = get_md5(file_path) self.metadata['filehash'] = self.filehash else: os.link(self._tempfile, file_path) if self.filehash is None: self.filehash = get_md5(file_path) self.metadata['filehash'] = self.filehash self._save_bookmarks_in_metadata() if self._close_requested: _logger.debug("Removing temp file %s because we will close", self._tempfile) os.unlink(self._tempfile) # remove file used to transmit the metadata if exits try: metadata_file_path = self._tempfile + '.json' os.unlink(metadata_file_path) except OSError: pass self._tempfile = None def _save_bookmarks_in_metadata(self): # save bookmarks in the metadata bookmarks = [] for bookmark in self._bookmarkmanager.get_bookmarks(): bookmarks.append(bookmark.get_as_dict()) self.metadata['bookmarks'] = json.dumps(bookmarks) self.metadata['highlights'] = json.dumps( self._bookmarkmanager.get_all_highlights()) 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, tube_ip, tube_port): 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 # Use the suggested file, the mime is not recognized if the extension # is wrong in some cases (epub) temp_dir = os.path.dirname(tempfile) new_name = os.path.join(temp_dir, suggested_name) os.rename(tempfile, new_name) tempfile = new_name _logger.debug("Saving file %s to datastore...", tempfile) mimetype = Gio.content_type_guess(tempfile, None)[0] self._jobject.metadata['mime_type'] = mimetype self._jobject.file_path = tempfile datastore.write(self._jobject) _logger.debug("Got document %s (%s) from tube %u", tempfile, suggested_name, tube_id) if self._progress_alert is not None: self.remove_alert(self._progress_alert) self._progress_alert = None # download the metadata GLib.idle_add(self._download_metadata, tube_id, tube_ip, tube_port) def _download_metadata_result_cb(self, getter, tempfile, suggested_name, tube_id): # load the shared metadata with open(tempfile) as json_file: shared_metadata = json.load(json_file) os.remove(tempfile) # load the object from the datastore to update the file path GLib.idle_add(self._open_downloaded_file, shared_metadata) def _open_downloaded_file(self, shared_metadata): self._jobject = datastore.get(self._jobject.object_id) for key in list(shared_metadata.keys()): self.metadata[key] = shared_metadata[key] self.read_file(self._jobject.file_path) 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) fraction = float(bytes_downloaded) / \ float(self._download_content_length) self._progress_alert.set_fraction(fraction) 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 if self._progress_alert is not None: self.remove_alert(self._progress_alert) self._progress_alert = None GLib.idle_add(self._get_document) def _get_connection_params(self, tube_id): # return ip and port to download a file chan = self.shared_activity.telepathy_tubes_chan iface = chan[TelepathyGLib.IFACE_CHANNEL_TYPE_TUBES] addr = iface.AcceptStreamTube( tube_id, TelepathyGLib.SocketAddressType.IPV4, TelepathyGLib.SocketAccessControl.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) assert addr[1] > 0 and addr[1] < 65536 ip = addr[0] port = int(addr[1]) return ip, port def _download_document(self, tube_id): ip, port = self._get_connection_params(tube_id) getter = ReadURLDownloader("http://%s:%d/document" % (ip, port)) getter.connect("finished", self._download_result_cb, tube_id, ip, port) getter.connect("progress", self._download_progress_cb, tube_id) getter.connect("error", self._download_error_cb, tube_id) getter.start() self._download_content_length = getter.get_content_length() self._download_content_type = getter.get_content_type() return False def _download_metadata(self, tube_id, ip, port): getter = ReadURLDownloader("http://%s:%d/metadata" % (ip, port)) getter.connect("finished", self._download_metadata_result_cb, tube_id) # getter.connect("progress", self._download_progress_cb, tube_id) getter.connect("error", self._download_error_cb, tube_id) getter.start() 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 # Pick an arbitrary tube we can try to download the document from try: tube_id = self.unused_download_tubes.pop() except (ValueError, KeyError) as 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 GLib.idle_add(self._download_document, tube_id) 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() if self._progress_alert is not None: self._progress_alert.props.msg = _('Receiving book...') GLib.idle_add(self._get_document) def _load_document(self, filepath): """Load the specified document and set up the UI. filepath -- string starting with file:// """ if self._tempfile is not None: # prevent reopen return self.set_canvas(self._vbox) filename = filepath.replace('file://', '') self._tempfile = filename if not os.path.exists(filename) or os.path.getsize(filename) == 0: return if 'mime_type' not in self.metadata or not self.metadata['mime_type']: mimetype = Gio.content_type_guess(filepath, None)[0] self.metadata['mime_type'] = mimetype else: mimetype = self.metadata['mime_type'] if mimetype == 'application/epub+zip': import epubadapter self._view = epubadapter.EpubViewer() elif mimetype == 'text/plain' or mimetype == 'application/zip': import textadapter self._view = textadapter.TextViewer() elif mimetype == 'application/x-cbz': import comicadapter self._view = comicadapter.ComicViewer() else: import evinceadapter self._view = evinceadapter.EvinceViewer() self._view_toolbar.show_inverted_colors_button() 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.filehash = self.metadata.get('filehash', None) if self.filehash is None: self.filehash = get_md5(filepath) self._bookmarkmanager = BookmarkManager(self.filehash) # update bookmarks and highlights with the informaiton # from the metadata if 'bookmarks' in self.metadata: self._bookmarkmanager.update_bookmarks( json.loads(self.metadata['bookmarks'])) if 'highlights' in self.metadata: self._bookmarkmanager.update_highlights( json.loads(self.metadata['highlights'])) self._bookmarkmanager.connect('added_bookmark', self._added_bookmark_cb) self._bookmarkmanager.connect('removed_bookmark', self._removed_bookmark_cb) # Add the bookmarks to the tray for bookmark in self._bookmarkmanager.get_bookmarks(): page = bookmark.page_no thumb = self._bookmarkmanager.get_bookmark_preview(page) if thumb is None: logging.debug('Preview NOT FOUND') thumb = self._get_screenshot() # The database is zero based num_page = int(page) + 1 title = _('%(title)s (Page %(number)d)') % \ ({'title': bookmark.get_note_title(), 'number': num_page}) self._add_link_totray(num_page, thumb, bookmark.color, title, bookmark.nick, bookmark.local) self._bookmark_view.set_bookmarkmanager(self._bookmarkmanager) 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) self._update_nav_buttons(current_page) # README: bookmark sidebar is not showing the bookmark in the # first page because this is updated just if the page number changes if current_page == 0: self._bookmark_view.update_for_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 as e: _logger.debug('Sharing failed: %s', e) def _update_toolbars(self): self._view_toolbar._update_zoom_buttons() if self._view.can_highlight(): self._highlight.show() if self._view.can_do_text_to_speech(): self.speech_toolbar = SpeechToolbar(self) self.speech_toolbar_button.set_page(self.speech_toolbar) 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, self.create_metadata_file) # Make a tube for it chan = self.shared_activity.telepathy_tubes_chan iface = chan[TelepathyGLib.IFACE_CHANNEL_TYPE_TUBES] self._fileserver_tube_id = iface.OfferStreamTube( READ_STREAM_SERVICE, {}, TelepathyGLib.SocketAddressType.IPV4, ('127.0.0.1', dbus.UInt16(self.port)), TelepathyGLib.SocketAccessControl.LOCALHOST, 0) def create_metadata_file(self): # store the metadata in a json file self._save_bookmarks_in_metadata() metadata_file_path = self._tempfile + '.json' shared_metadata = {} for key in list(self.metadata.keys()): if key not in ['preview', 'cover_image']: shared_metadata[str(key)] = self.metadata[key] logging.debug('save metadata in %s', metadata_file_path) with open(metadata_file_path, 'w') as json_file: json.dump(shared_metadata, json_file) return metadata_file_path def watch_for_tubes(self): """Watch for new tubes.""" tubes_chan = self.shared_activity.telepathy_tubes_chan tubes_chan[TelepathyGLib.IFACE_CHANNEL_TYPE_TUBES].connect_to_signal( 'NewTube', self._new_tube_cb) tubes_chan[TelepathyGLib.IFACE_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: GLib.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(): in_bounds, _highlight_found = self._view.in_highlight() 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): if self.activity_button.page.title.has_focus() or \ self._num_page_entry.has_focus(): return False keyname = Gdk.keyval_name(event.keyval) if keyname == 'c' and event.state & Gdk.ModifierType.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 == 'i' and event.state & Gdk.ModifierType.CONTROL_MASK: self._view_toolbar.toggle_inverted_colors() return True elif keyname == 'Home': self._view.scroll(Gtk.ScrollType.START, False) return True elif keyname == 'End': self._view.scroll(Gtk.ScrollType.END, False) return True elif keyname == 'Page_Up' or keyname == 'KP_Page_Up': self._view.scroll(Gtk.ScrollType.PAGE_BACKWARD, False) return True elif keyname == 'Page_Down' or keyname == 'KP_Page_Down': self._view.scroll(Gtk.ScrollType.PAGE_FORWARD, False) return True elif keyname == 'Up' or keyname == 'KP_Up': self._view.scroll(Gtk.ScrollType.STEP_BACKWARD, False) return True elif keyname == 'Down' or keyname == 'KP_Down': self._view.scroll(Gtk.ScrollType.STEP_FORWARD, False) return True elif keyname == 'Left' or keyname == 'KP_Left': self._view.scroll(Gtk.ScrollType.STEP_BACKWARD, True) return True elif keyname == 'Right' or keyname == 'KP_Right': self._view.scroll(Gtk.ScrollType.STEP_FORWARD, True) return True else: return False def _key_release_event_cb(self, widget, event): # keyname = 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() def _added_bookmark_cb(self, bookmarkmanager, page, title): logging.debug('Bookmark added page %d', page) title = _('%(title)s (Page %(number)d)') % \ ({'title': title, 'number': page}) color = profile.get_color().to_string() owner = profile.get_nick_name() thumb = self._get_screenshot() self._add_link_totray(page, thumb, color, title, owner, 1) bookmarkmanager.add_bookmark_preview(page - 1, thumb) def _removed_bookmark_cb(self, bookmarkmanager, page): logging.debug('Bookmark removed page %d', page) # remove button from tray for button in self.tray.get_children(): if button.page == page: self.tray.remove_item(button) if len(self.tray.get_children()) == 0: self.tray.hide() self._view_toolbar.traybutton.props.active = False def _add_link_totray(self, page, buf, color, title, owner, local): ''' add a link to the tray ''' item = LinkButton(buf, color, title, owner, page, local) item.connect('clicked', self._bookmark_button_clicked_cb, page) item.connect('go_to_bookmark', self._bookmark_button_clicked_cb) item.connect('remove_link', self._bookmark_button_removed_cb) self.tray.show() self.tray.add_item(item) item.show() self._view_toolbar.traybutton.props.active = True def _bookmark_button_clicked_cb(self, button, page): num_page = int(page) - 1 self._view.set_current_page(num_page) if not button.have_preview(): # HACK: we need take the screenshot after the page changed # but we don't have a event yet, Evince model have a event # we need check the differnt backends and implement # in all the backends. GLib.timeout_add_seconds(2, self._update_preview, button, page) def _update_preview(self, button, page): thumb = self._get_screenshot() self._bookmarkmanager.add_bookmark_preview(page - 1, thumb) button.set_image(thumb) return False def _bookmark_button_removed_cb(self, button, page): num_page = int(page) - 1 self._bookmark_view.del_bookmark(num_page) def _get_screenshot(self): """Copied from activity.get_preview() """ if self.canvas is None or not hasattr(self.canvas, 'get_window'): return None window = self.canvas.get_window() if window is None: return None alloc = self.canvas.get_allocation() dummy_cr = Gdk.cairo_create(window) target = dummy_cr.get_target() canvas_width, canvas_height = alloc.width, alloc.height screenshot_surface = target.create_similar(cairo.CONTENT_COLOR, canvas_width, canvas_height) del dummy_cr, target cr = cairo.Context(screenshot_surface) r, g, b, a_ = style.COLOR_PANEL_GREY.get_rgba() cr.set_source_rgb(r, g, b) cr.paint() self.canvas.draw(cr) del cr preview_width, preview_height = style.zoom(100), style.zoom(80) preview_surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, preview_width, preview_height) cr = cairo.Context(preview_surface) scale_w = preview_width * 1.0 / canvas_width scale_h = preview_height * 1.0 / canvas_height scale = min(scale_w, scale_h) translate_x = int((preview_width - (canvas_width * scale)) / 2) translate_y = int((preview_height - (canvas_height * scale)) / 2) cr.translate(translate_x, translate_y) cr.scale(scale, scale) cr.set_source_rgba(1, 1, 1, 0) cr.set_operator(cairo.OPERATOR_SOURCE) cr.paint() cr.set_source_surface(screenshot_surface) cr.paint() preview_str = io.BytesIO() preview_surface.write_to_png(preview_str) return preview_str.getvalue()