# Copyright (C) 2006, Red Hat, Inc. # Copyright (C) 2007, One Laptop Per Child # Copyright (C) 2009, Tomeu Vizoso, 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 os import time from gettext import gettext as _ import gobject import gtk import pango import hulahop import xpcom from xpcom.nsError import * from xpcom import components from xpcom.components import interfaces from hulahop.webview import WebView from sugar import env from sugar.activity import activity from sugar.graphics import style from sugar.graphics.icon import Icon import sessionstore from palettes import ContentInvoker from sessionhistory import HistoryListener from progresslistener import ProgressListener from widgets import BrowserNotebook _ZOOM_AMOUNT = 0.1 _LIBRARY_PATH = '/usr/share/library-common/index.html' class SaveListener(object): _com_interfaces_ = interfaces.nsIWebProgressListener def __init__(self, user_data, callback): self._user_data = user_data self._callback = callback def onStateChange(self, webProgress, request, stateFlags, status): listener_class = interfaces.nsIWebProgressListener if (stateFlags & listener_class.STATE_IS_REQUEST and stateFlags & listener_class.STATE_STOP): self._callback(self._user_data) # Contrary to the documentation, STATE_IS_REQUEST is _not_ always set # if STATE_IS_DOCUMENT is set. if (stateFlags & listener_class.STATE_IS_DOCUMENT and stateFlags & listener_class.STATE_STOP): self._callback(self._user_data) 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 TabbedView(BrowserNotebook): __gtype_name__ = 'TabbedView' __gsignals__ = { 'focus-url-entry': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), } _com_interfaces_ = interfaces.nsIWindowCreator AGENT_SHEET = os.path.join(activity.get_bundle_path(), 'agent-stylesheet.css') USER_SHEET = os.path.join(env.get_profile_path(), 'gecko', 'user-stylesheet.css') def __init__(self): BrowserNotebook.__init__(self) self.props.show_border = False self.props.scrollable = True 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'] style_sheet_service = cls.getService(interfaces.nsIStyleSheetService) if os.path.exists(TabbedView.AGENT_SHEET): agent_sheet_uri = io_service.newURI('file:///' + TabbedView.AGENT_SHEET, None, None) style_sheet_service.loadAndRegisterSheet(agent_sheet_uri, interfaces.nsIStyleSheetService.AGENT_SHEET) if os.path.exists(TabbedView.USER_SHEET): url = 'file:///' + TabbedView.USER_SHEET user_sheet_uri = io_service.newURI(url, None, None) style_sheet_service.loadAndRegisterSheet(user_sheet_uri, interfaces.nsIStyleSheetService.USER_SHEET) cls = components.classes['@mozilla.org/embedcomp/window-watcher;1'] window_watcher = cls.getService(interfaces.nsIWindowWatcher) window_creator = xpcom.server.WrapObject(self, interfaces.nsIWindowCreator) window_watcher.setWindowCreator(window_creator) self.connect('size-allocate', self.__size_allocate_cb) self.connect('page-added', self.__page_added_cb) self.connect('page-removed', self.__page_removed_cb) self.add_tab() self._update_closing_buttons() self._update_tab_sizes() def createChromeWindow(self, parent, flags): if flags & interfaces.nsIWebBrowserChrome.CHROME_OPENAS_CHROME: dialog = PopupDialog() dialog.view.is_chrome = True 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 item = browser.queryInterface(interfaces.nsIDocShellTreeItem) item.itemType = interfaces.nsIDocShellTreeItem.typeChromeWrapper return browser.containerWindow else: browser = Browser() browser.connect('new-tab', self.__new_tab_cb) self._append_tab(browser) return browser.browser.containerWindow def __size_allocate_cb(self, widget, allocation): self._update_tab_sizes() def __page_added_cb(self, notebook, child, pagenum): self._update_closing_buttons() self._update_tab_sizes() def __page_removed_cb(self, notebook, child, pagenum): self._update_closing_buttons() self._update_tab_sizes() def __new_tab_cb(self, browser, url): new_browser = self.add_tab(next_to_current=True) new_browser.load_uri(url) new_browser.grab_focus() def add_tab(self, next_to_current=False): browser = Browser() browser.connect('new-tab', self.__new_tab_cb) label = TabLabel(browser) label.connect('tab-close', self.__tab_close_cb) if next_to_current: self._insert_tab_next(browser) else: self._append_tab(browser) self.emit('focus-url-entry') browser.load_uri('about:blank') return browser def _insert_tab_next(self, browser): label = TabLabel(browser) label.connect('tab-close', self.__tab_close_cb) next_index = self.get_current_page() + 1 self.insert_page(browser, label, next_index) browser.show() self.set_current_page(next_index) def _append_tab(self, browser): label = TabLabel(browser) label.connect('tab-close', self.__tab_close_cb) self.append_page(browser, label) browser.show() self.set_current_page(-1) def on_add_tab(self, gobject): self.add_tab() def __tab_close_cb(self, label, browser): self.remove_page(self.page_num(browser)) browser.destroy() def _update_tab_sizes(self): """Update ta widths based in the amount of tabs.""" n_pages = self.get_n_pages() canvas_size = self.get_allocation() overlap_size = self.style_get_property('tab-overlap') * n_pages - 1 allowed_size = canvas_size.width - overlap_size tab_new_size = int(allowed_size * 1.0 / (n_pages + 1)) # Four tabs ensured: tab_max_size = int(allowed_size * 1.0 / (5)) # Eight tabs ensured: tab_min_size = int(allowed_size * 1.0 / (9)) if tab_new_size < tab_min_size: tab_new_size = tab_min_size elif tab_new_size > tab_max_size: tab_new_size = tab_max_size for page_idx in range(n_pages): page = self.get_nth_page(page_idx) label = self.get_tab_label(page) label.update_size(tab_new_size) def _update_closing_buttons(self): """Prevent closing the last tab.""" first_page = self.get_nth_page(0) first_label = self.get_tab_label(first_page) if self.get_n_pages() == 0: return elif self.get_n_pages() == 1: first_label.hide_close_button() else: first_label.show_close_button() def load_homepage(self): browser = self.current_browser if os.path.isfile(_LIBRARY_PATH): browser.load_uri('file://' + _LIBRARY_PATH) else: default_page = os.path.join(activity.get_bundle_path(), "data/index.html") browser.load_uri(default_page) def _get_current_browser(self): return self.get_nth_page(self.get_current_page()) current_browser = gobject.property(type=object, getter=_get_current_browser) def get_session(self): tab_sessions = [] for index in xrange(0, self.get_n_pages()): browser = self.get_nth_page(index) tab_sessions.append(sessionstore.get_session(browser)) return tab_sessions def set_session(self, tab_sessions): if tab_sessions and isinstance(tab_sessions[0], dict): # Old format, no tabs tab_sessions = [tab_sessions] while self.get_n_pages(): self.remove_page(self.get_n_pages() - 1) for tab_session in tab_sessions: browser = Browser() browser.connect('new-tab', self.__new_tab_cb) self._append_tab(browser) sessionstore.set_session(browser, tab_session) gtk.rc_parse_string(''' style "browse-tab-close" { xthickness = 0 ythickness = 0 } widget "*browse-tab-close" style "browse-tab-close"''') class TabLabel(gtk.HBox): __gtype_name__ = 'TabLabel' __gsignals__ = { 'tab-close': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([object])), } def __init__(self, browser): gobject.GObject.__init__(self) self._browser = browser self._browser.connect('is-setup', self.__browser_is_setup_cb) self._label = gtk.Label(_('Untitled')) self._label.set_ellipsize(pango.ELLIPSIZE_END) self._label.set_alignment(0, 0.5) self.pack_start(self._label) self._label.show() close_tab_icon = Icon(icon_name='browse-close-tab') button = gtk.Button() button.props.relief = gtk.RELIEF_NONE button.props.focus_on_click = False icon_box = gtk.HBox() icon_box.pack_start(close_tab_icon, True, False, 0) button.add(icon_box) button.connect('clicked', self.__button_clicked_cb) button.set_name('browse-tab-close') self.pack_start(button, expand=False) close_tab_icon.show() icon_box.show() button.show() self._close_button = button def update_size(self, size): self.set_size_request(size, -1) def hide_close_button(self): self._close_button.hide() def show_close_button(self): self._close_button.show() def __button_clicked_cb(self, button): self.emit('tab-close', self._browser) def __browser_is_setup_cb(self, browser): browser.progress.connect('notify::location', self.__location_changed_cb) browser.connect('notify::title', self.__title_changed_cb) def __location_changed_cb(self, progress_listener, pspec): url = self._browser.get_url_from_nsiuri(progress_listener.location) if url == 'about:blank': self._label.set_text(_('Loading...')) else: self._label.set_text(url) def __title_changed_cb(self, browser, pspec): if browser.props.title == "": self._label.set_text(_('Untitled')) else: self._label.set_text(browser.props.title) class Browser(WebView): __gtype_name__ = 'Browser' __gsignals__ = { 'is-setup': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), 'new-tab': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([str])), } def __init__(self): WebView.__init__(self) self.history = HistoryListener() self.progress = ProgressListener() cls = components.classes["@mozilla.org/typeaheadfind;1"] self.typeahead = cls.createInstance(interfaces.nsITypeAheadFind) 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.typeahead.init(self.doc_shell) self.emit('is-setup') def get_url_from_nsiuri(self, uri): """ get a nsIURI object and return a string with the url """ if uri == None: return '' cls = components.classes['@mozilla.org/intl/texttosuburi;1'] texttosuburi = cls.getService(interfaces.nsITextToSubURI) return texttosuburi.unEscapeURIForUI(uri.originCharset, uri.spec) def get_session(self): return sessionstore.get_session(self) def set_session(self, data): return sessionstore.set_session(self, data) 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 = SaveListener(file_path, async_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 def get_history_index(self): return self.web_navigation.sessionHistory.index def set_history_index(self, index): if index == -1: return self.web_navigation.gotoIndex(index) def open_new_tab(self, url): self.emit('new-tab', url) 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.view.connect('notify::visibility', self.__notify_visibility_cb) self.add(self.view) self.view.realize() def __notify_visibility_cb(self, web_view, pspec): if self.view.props.visibility: self.view.show() self.show()