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edittoolbar.py
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edittoolbar.py
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# Copyright (C) 2008, One Laptop Per Child
# Copyright (C) 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
from gi.repository import WebKit2
from gi.repository import GObject
from gi.repository import Gtk
from gi.repository import Gdk
from gettext import gettext as _
from sugar3.activity.widgets import EditToolbar as BaseEditToolbar
from sugar3.graphics import iconentry
from sugar3.graphics.toolbutton import ToolButton
from sugar3.graphics import style
class EditToolbar(BaseEditToolbar):
def __init__(self, act):
BaseEditToolbar.__init__(self)
self._activity = act
self._browser = None
self._source_id = None
self.undo.connect('clicked', self.__undo_cb)
self.redo.connect('clicked', self.__redo_cb)
self.copy.connect('clicked', self.__copy_cb)
self.paste.connect('clicked', self.__paste_cb)
separator = Gtk.SeparatorToolItem()
separator.set_draw(False)
separator.set_expand(True)
self.insert(separator, -1)
separator.show()
search_item = Gtk.ToolItem()
self.search_entry = iconentry.IconEntry()
self.search_entry.set_icon_from_name(iconentry.ICON_ENTRY_PRIMARY,
'entry-search')
self.search_entry.add_clear_button()
self.search_entry.connect('activate', self.__search_entry_activate_cb)
self.search_entry.connect('changed', self.__search_entry_changed_cb)
width = int(Gdk.Screen.width() / 3)
self.search_entry.set_size_request(width, -1)
search_item.add(self.search_entry)
self.search_entry.show()
self.insert(search_item, -1)
search_item.show()
self._prev = ToolButton('go-previous-paired')
self._prev.set_tooltip(_('Previous'))
self._prev.props.sensitive = False
self._prev.connect('clicked', self.__find_previous_cb)
self.insert(self._prev, -1)
self._prev.show()
self._next = ToolButton('go-next-paired')
self._next.set_tooltip(_('Next'))
self._next.props.sensitive = False
self._next.connect('clicked', self.__find_next_cb)
self.insert(self._next, -1)
self._next.show()
tabbed_view = self._activity.get_canvas()
GObject.idle_add(lambda: self._connect_to_browser(
tabbed_view.props.current_browser))
tabbed_view.connect_after('switch-page', self.__switch_page_cb)
def __switch_page_cb(self, tabbed_view, page, page_num):
self._connect_to_browser(tabbed_view.props.current_browser)
def _connect_to_browser(self, browser):
self._browser = browser
self._update_buttons()
# FIXME this api was changed. Since multiproccess, we need
# a "web extension" which is loaded into the
# webkit process to access the page and signal
# self._selection_changed_hid = self._browser.connect(
# 'selection-changed', self.__selection_changed_cb)
if self._source_id is not None:
GObject.source_remove(self._source_id)
self._source_id = \
GObject.timeout_add(300, self.__selection_changed_cb)
find = self._browser.get_find_controller()
if find is not None:
find.connect('found-text', self.__found_text_cb)
find.connect('failed-to-find-text', self.__failed_to_find_text_cb)
def __selection_changed_cb(self, *args):
self._update_buttons()
return True
def _update_buttons(self):
if self._browser.can_query_editing_commands():
self._find_sensitive(self.undo, WebKit2.EDITING_COMMAND_UNDO)
self._find_sensitive(self.redo, WebKit2.EDITING_COMMAND_REDO)
self._find_sensitive(self.copy, WebKit2.EDITING_COMMAND_COPY)
self._find_sensitive(self.paste, WebKit2.EDITING_COMMAND_PASTE)
def _find_sensitive(self, button, command):
self._browser.can_execute_editing_command(
command, None, self.__can_execute_editing_command_cb, button)
def __can_execute_editing_command_cb(self, source, result, button):
can = self._browser.can_execute_editing_command_finish(result)
button.set_sensitive(can)
def __undo_cb(self, button):
self._browser.execute_editing_command(WebKit2.EDITING_COMMAND_UNDO)
self._update_buttons()
def __redo_cb(self, button):
self._browser.execute_editing_command(WebKit2.EDITING_COMMAND_REDO)
self._update_buttons()
def __copy_cb(self, button):
self._browser.execute_editing_command(WebKit2.EDITING_COMMAND_COPY)
def __paste_cb(self, button):
self._browser.execute_editing_command(WebKit2.EDITING_COMMAND_PASTE)
def _find_and_mark_text(self, entry):
search_text = entry.get_text()
controller = self._browser.get_find_controller()
controller.search(search_text,
WebKit2.FindOptions.CASE_INSENSITIVE
| WebKit2.FindOptions.WRAP_AROUND,
(2 << 31) - 1)
def __search_entry_activate_cb(self, entry):
self._find_and_mark_text(entry)
def __search_entry_changed_cb(self, entry):
self._find_and_mark_text(entry)
def __found_text_cb(self, controller, match_count):
self._prev.props.sensitive = True
self._next.props.sensitive = True
self.search_entry.modify_text(Gtk.StateType.NORMAL,
style.COLOR_BLACK.get_gdk_color())
def __failed_to_find_text_cb(self, controller):
self._prev.props.sensitive = False
self._next.props.sensitive = False
self.search_entry.modify_text(Gtk.StateType.NORMAL,
style.COLOR_BUTTON_GREY.get_gdk_color())
def __find_previous_cb(self, button):
self._browser.get_find_controller().search_previous()
def __find_next_cb(self, button):
self._browser.get_find_controller().search_next()