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# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2015-2019 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/>.
"""Base class for a QtWebKit/QtWebEngine web inspector."""
import base64
import binascii
import typing
from PyQt5.QtWidgets import QWidget
from qutebrowser.config import configfiles
from qutebrowser.utils import log, usertypes
from qutebrowser.misc import miscwidgets, objects
def create(parent=None):
"""Get a WebKitInspector/WebEngineInspector.
Args:
parent: The Qt parent to set.
"""
# Importing modules here so we don't depend on QtWebEngine without the
# argument and to avoid circular imports.
if objects.backend == usertypes.Backend.QtWebEngine:
from qutebrowser.browser.webengine import webengineinspector
return webengineinspector.WebEngineInspector(parent)
else:
from qutebrowser.browser.webkit import webkitinspector
return webkitinspector.WebKitInspector(parent)
class WebInspectorError(Exception):
"""Raised when the inspector could not be initialized."""
class AbstractWebInspector(QWidget):
"""A customized WebInspector which stores its geometry."""
def __init__(self, parent=None):
super().__init__(parent)
self._widget = typing.cast(QWidget, None)
self._layout = miscwidgets.WrapperLayout(self)
self._load_state_geometry()
def _set_widget(self, widget):
self._widget = widget
self._layout.wrap(self, widget)
def _load_state_geometry(self):
"""Load the geometry from the state file."""
try:
data = configfiles.state['geometry']['inspector']
geom = base64.b64decode(data, validate=True)
except KeyError:
# First start
pass
except binascii.Error:
log.misc.exception("Error while reading geometry")
else:
log.init.debug("Loading geometry from {!r}".format(geom))
ok = self.restoreGeometry(geom)
if not ok:
log.init.warning("Error while loading geometry.")
def closeEvent(self, e):
"""Save the geometry when closed."""
data = bytes(self.saveGeometry())
geom = base64.b64encode(data).decode('ASCII')
configfiles.state['geometry']['inspector'] = geom
self.inspect(None)
super().closeEvent(e)
def inspect(self, page):
"""Inspect the given QWeb(Engine)Page."""
raise NotImplementedError
def toggle(self, page):
"""Show/hide the inspector."""
if self._widget.isVisible():
self.hide()
else:
self.inspect(page)
self.show()
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