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Diffstat (limited to 'extensions/cpsection/updater/view.py')
| -rw-r--r-- | extensions/cpsection/updater/view.py | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/extensions/cpsection/updater/view.py b/extensions/cpsection/updater/view.py new file mode 100644 index 0000000..814658f --- /dev/null +++ b/extensions/cpsection/updater/view.py @@ -0,0 +1,391 @@ +# Copyright (C) 2008, One Laptop Per Child +# Copyright (C) 2009, Tomeu Vizoso +# +# 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 + +from gettext import gettext as _ +from gettext import ngettext +import locale +import logging + +import gobject +import gtk + +from sugar.graphics import style +from sugar.graphics.icon import Icon, CellRendererIcon + +from jarabe.controlpanel.sectionview import SectionView + +from model import UpdateModel + +_DEBUG_VIEW_ALL = True + + +class ActivityUpdater(SectionView): + + def __init__(self, model, alerts): + SectionView.__init__(self) + + self._model = UpdateModel() + self._model.connect('progress', self.__progress_cb) + + self.set_spacing(style.DEFAULT_SPACING) + self.set_border_width(style.DEFAULT_SPACING * 2) + + self._top_label = gtk.Label() + self._top_label.set_line_wrap(True) + self._top_label.set_justify(gtk.JUSTIFY_LEFT) + self._top_label.props.xalign = 0 + self.pack_start(self._top_label, expand=False) + self._top_label.show() + + separator = gtk.HSeparator() + self.pack_start(separator, expand=False) + separator.show() + + bottom_label = gtk.Label() + bottom_label.set_line_wrap(True) + bottom_label.set_justify(gtk.JUSTIFY_LEFT) + bottom_label.props.xalign = 0 + bottom_label.set_markup( + _('Software updates correct errors, eliminate security ' \ + 'vulnerabilities, and provide new features.')) + self.pack_start(bottom_label, expand=False) + bottom_label.show() + + self._update_box = None + self._progress_pane = None + + self._refresh() + + def _switch_to_update_box(self): + if self._update_box in self.get_children(): + return + + if self._progress_pane in self.get_children(): + self.remove(self._progress_pane) + self._progress_pane = None + + if self._update_box is None: + self._update_box = UpdateBox(self._model) + self._update_box.refresh_button.connect('clicked', + self.__refresh_button_clicked_cb) + self._update_box.install_button.connect('clicked', + self.__install_button_clicked_cb) + + self.pack_start(self._update_box, expand=True, fill=True) + self._update_box.show() + + def _switch_to_progress_pane(self): + if self._progress_pane in self.get_children(): + return + + if self._update_box in self.get_children(): + self.remove(self._update_box) + self._update_box = None + + if self._progress_pane is None: + self._progress_pane = ProgressPane() + self._progress_pane.cancel_button.connect('clicked', + self.__cancel_button_clicked_cb) + + self.pack_start(self._progress_pane, expand=True, fill=False) + self._progress_pane.show() + + def _clear_center(self): + if self._progress_pane in self.get_children(): + self.remove(self._progress_pane) + self._progress_pane = None + + if self._update_box in self.get_children(): + self.remove(self._update_box) + self._update_box = None + + def __progress_cb(self, model, action, bundle_name, current, total): + if current == total and action == UpdateModel.ACTION_CHECKING: + self._finished_checking() + return + elif current == total: + self._finished_updating(int(current)) + return + + if action == UpdateModel.ACTION_CHECKING: + message = _('Checking %s...') % bundle_name + elif action == UpdateModel.ACTION_DOWNLOADING: + message = _('Downloading %s...') % bundle_name + elif action == UpdateModel.ACTION_UPDATING: + message = _('Updating %s...') % bundle_name + + self._switch_to_progress_pane() + self._progress_pane.set_message(message) + self._progress_pane.set_progress(current / float(total)) + + def _finished_checking(self): + logging.debug('ActivityUpdater._finished_checking') + available_updates = len(self._model.updates) + if not available_updates: + top_message = _('Your software is up-to-date') + else: + top_message = ngettext('You can install %s update', + 'You can install %s updates', + available_updates) + top_message = top_message % available_updates + top_message = gobject.markup_escape_text(top_message) + + self._top_label.set_markup('<big>%s</big>' % top_message) + + if not available_updates: + self._clear_center() + else: + self._switch_to_update_box() + self._update_box.refresh() + + def __refresh_button_clicked_cb(self, button): + self._refresh() + + def _refresh(self): + top_message = _('Checking for updates...') + self._top_label.set_markup('<big>%s</big>' % top_message) + self._model.check_updates() + + def __install_button_clicked_cb(self, button): + text = '<big>%s</big>' % _('Installing updates...') + self._top_label.set_markup(text) + self._model.update(self._update_box.get_bundles_to_update()) + + def __cancel_button_clicked_cb(self, button): + self._model.cancel() + + def _finished_updating(self, installed_updates): + logging.debug('ActivityUpdater._finished_updating') + top_message = ngettext('%s update was installed', + '%s updates were installed', installed_updates) + top_message = top_message % installed_updates + top_message = gobject.markup_escape_text(top_message) + self._top_label.set_markup('<big>%s</big>' % top_message) + self._clear_center() + + def undo(self): + self._model.cancel() + + +class ProgressPane(gtk.VBox): + """Container which replaces the `ActivityPane` during refresh or + install.""" + + def __init__(self): + gtk.VBox.__init__(self) + self.set_spacing(style.DEFAULT_PADDING) + self.set_border_width(style.DEFAULT_SPACING * 2) + + self._progress = gtk.ProgressBar() + self.pack_start(self._progress) + self._progress.show() + + self._label = gtk.Label() + self._label.set_line_wrap(True) + self._label.set_property('xalign', 0.5) + self._label.modify_fg(gtk.STATE_NORMAL, + style.COLOR_BUTTON_GREY.get_gdk_color()) + self.pack_start(self._label) + self._label.show() + + alignment_box = gtk.Alignment(xalign=0.5, yalign=0.5) + self.pack_start(alignment_box) + alignment_box.show() + + self.cancel_button = gtk.Button(stock=gtk.STOCK_CANCEL) + alignment_box.add(self.cancel_button) + self.cancel_button.show() + + def set_message(self, message): + self._label.set_text(message) + + def set_progress(self, fraction): + self._progress.props.fraction = fraction + + +class UpdateBox(gtk.VBox): + + def __init__(self, model): + gtk.VBox.__init__(self) + + self._model = model + + self.set_spacing(style.DEFAULT_PADDING) + + scrolled_window = gtk.ScrolledWindow() + scrolled_window.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) + self.pack_start(scrolled_window) + scrolled_window.show() + + self._update_list = UpdateList(model) + self._update_list.props.model.connect('row-changed', + self.__row_changed_cb) + scrolled_window.add(self._update_list) + self._update_list.show() + + bottom_box = gtk.HBox() + bottom_box.set_spacing(style.DEFAULT_SPACING) + self.pack_start(bottom_box, expand=False) + bottom_box.show() + + self._size_label = gtk.Label() + self._size_label.props.xalign = 0 + self._size_label.set_justify(gtk.JUSTIFY_LEFT) + bottom_box.pack_start(self._size_label, expand=True) + self._size_label.show() + + self.refresh_button = gtk.Button(stock=gtk.STOCK_REFRESH) + bottom_box.pack_start(self.refresh_button, expand=False) + self.refresh_button.show() + + self.install_button = gtk.Button(_('Install selected')) + self.install_button.props.image = Icon(icon_name='emblem-downloads', + icon_size=gtk.ICON_SIZE_BUTTON) + bottom_box.pack_start(self.install_button, expand=False) + self.install_button.show() + + self._update_total_size_label() + + def refresh(self): + self._update_list.refresh() + + def __row_changed_cb(self, list_model, path, iterator): + self._update_total_size_label() + self._update_install_button() + + def _update_total_size_label(self): + total_size = 0 + for row in self._update_list.props.model: + if row[UpdateListModel.SELECTED]: + total_size += row[UpdateListModel.SIZE] + + markup = _('Download size: %s') % _format_size(total_size) + self._size_label.set_markup(markup) + + def _update_install_button(self): + for row in self._update_list.props.model: + if row[UpdateListModel.SELECTED]: + self.install_button.props.sensitive = True + return + self.install_button.props.sensitive = False + + def get_bundles_to_update(self): + bundles_to_update = [] + for row in self._update_list.props.model: + if row[UpdateListModel.SELECTED]: + bundles_to_update.append(row[UpdateListModel.BUNDLE_ID]) + return bundles_to_update + + +class UpdateList(gtk.TreeView): + + def __init__(self, model): + list_model = UpdateListModel(model) + gtk.TreeView.__init__(self, list_model) + + self.set_reorderable(False) + self.set_enable_search(False) + self.set_headers_visible(False) + + toggle_renderer = gtk.CellRendererToggle() + toggle_renderer.props.activatable = True + toggle_renderer.props.xpad = style.DEFAULT_PADDING + toggle_renderer.props.indicator_size = style.zoom(26) + toggle_renderer.connect('toggled', self.__toggled_cb) + + toggle_column = gtk.TreeViewColumn() + toggle_column.pack_start(toggle_renderer) + toggle_column.add_attribute(toggle_renderer, 'active', + UpdateListModel.SELECTED) + self.append_column(toggle_column) + + icon_renderer = CellRendererIcon(self) + icon_renderer.props.width = style.STANDARD_ICON_SIZE + icon_renderer.props.height = style.STANDARD_ICON_SIZE + icon_renderer.props.size = style.STANDARD_ICON_SIZE + icon_renderer.props.xpad = style.DEFAULT_PADDING + icon_renderer.props.ypad = style.DEFAULT_PADDING + icon_renderer.props.stroke_color = style.COLOR_TOOLBAR_GREY.get_svg() + icon_renderer.props.fill_color = style.COLOR_TRANSPARENT.get_svg() + + icon_column = gtk.TreeViewColumn() + icon_column.pack_start(icon_renderer) + icon_column.add_attribute(icon_renderer, 'file-name', + UpdateListModel.ICON_FILE_NAME) + self.append_column(icon_column) + + text_renderer = gtk.CellRendererText() + + description_column = gtk.TreeViewColumn() + description_column.pack_start(text_renderer) + description_column.add_attribute(text_renderer, 'markup', + UpdateListModel.DESCRIPTION) + self.append_column(description_column) + + def __toggled_cb(self, cell_renderer, path): + row = self.props.model[path] + row[UpdateListModel.SELECTED] = not row[UpdateListModel.SELECTED] + + def refresh(self): + pass + + +class UpdateListModel(gtk.ListStore): + + BUNDLE_ID = 0 + SELECTED = 1 + ICON_FILE_NAME = 2 + DESCRIPTION = 3 + SIZE = 4 + + def __init__(self, model): + gtk.ListStore.__init__(self, str, bool, str, str, int) + + for bundle_update in model.updates: + row = [None] * 5 + row[self.BUNDLE_ID] = bundle_update.bundle.get_bundle_id() + row[self.SELECTED] = True + row[self.ICON_FILE_NAME] = bundle_update.bundle.get_icon() + + details = _('From version %(current)s to %(new)s (Size: %(size)s)') + details = details % \ + {'current': bundle_update.bundle.get_activity_version(), + 'new': bundle_update.version, + 'size': _format_size(bundle_update.size)} + + row[self.DESCRIPTION] = '<b>%s</b>\n%s' % \ + (bundle_update.bundle.get_name(), details) + + row[self.SIZE] = bundle_update.size + + self.append(row) + + +def _format_size(size): + """Convert a given size in bytes to a nicer better readable unit""" + if size == 0: + # TRANS: download size is 0 + return _('None') + elif size < 1024: + # TRANS: download size of very small updates + return _('1 KB') + elif size < 1024 * 1024: + # TRANS: download size of small updates, e.g. '250 KB' + return locale.format_string(_('%.0f KB'), size / 1024.0) + else: + # TRANS: download size of updates, e.g. '2.3 MB' + return locale.format_string(_('%.1f MB'), size / 1024.0 / 1024) |