49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
|
|
|
|
# Copyright 2017 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
|
|
#
|
|
# This file is part of qutebrowser.
|
|
#
|
|
# qutebrowser 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 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# qutebrowser 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 qutebrowser. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
"""Navigation (back/forward) indicator displayed in the statusbar."""
|
|
|
|
from qutebrowser.mainwindow.statusbar import textbase
|
|
|
|
|
|
class Backforward(textbase.TextBase):
|
|
|
|
"""Shows navigation indicator (if you can go backward and/or forward)."""
|
|
|
|
def on_tab_cur_url_changed(self, tabs):
|
|
"""Called on URL changes."""
|
|
tab = tabs.currentWidget()
|
|
if tab is None: # pragma: no cover
|
|
self.setText('')
|
|
self.hide()
|
|
return
|
|
self.on_tab_changed(tab)
|
|
|
|
def on_tab_changed(self, tab):
|
|
"""Update the text based on the given tab."""
|
|
text = ''
|
|
if tab.history.can_go_back():
|
|
text += '<'
|
|
if tab.history.can_go_forward():
|
|
text += '>'
|
|
if text:
|
|
text = '[' + text + ']'
|
|
self.setText(text)
|
|
self.setVisible(bool(text))
|