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# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2015-2021 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 <https://www.gnu.org/licenses/>.
"""QtWebKit specific part of history."""
import functools
from qutebrowser.qt import webkit
from qutebrowser.utils import debug
from qutebrowser.misc import debugcachestats
class WebHistoryInterface(webkit.QWebHistoryInterface):
"""Glue code between WebHistory and Qt's QWebHistoryInterface.
Attributes:
_history: The WebHistory object.
"""
def __init__(self, webhistory, parent=None):
super().__init__(parent)
self._history = webhistory
self._history.changed.connect(self.historyContains.cache_clear)
def addHistoryEntry(self, url_string):
"""Required for a QWebHistoryInterface impl, obsoleted by add_url."""
@debugcachestats.register(name='history')
@functools.lru_cache(maxsize=32768) # noqa: B019
def historyContains(self, url_string):
"""Called by WebKit to determine if a URL is contained in the history.
Args:
url_string: The URL (as string) to check for.
Return:
True if the url is in the history, False otherwise.
"""
with debug.log_time('sql', 'historyContains'):
return url_string in self._history
def init(history):
"""Initialize the QWebHistoryInterface.
Args:
history: The WebHistory object.
"""
interface = WebHistoryInterface(history, parent=history)
webkit.QWebHistoryInterface.setDefaultInterface(interface)
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