1871 lines
70 KiB
Python
1871 lines
70 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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# Copyright 2016-2020 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# qutebrowser is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Wrapper over a QWebEngineView."""
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import math
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import functools
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import re
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import html as html_utils
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import typing
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from PyQt5.QtCore import (pyqtSignal, pyqtSlot, Qt, QPoint, QPointF, QUrl,
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QTimer, QObject)
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from PyQt5.QtNetwork import QAuthenticator
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from PyQt5.QtWidgets import QApplication, QWidget
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from PyQt5.QtWebEngineWidgets import QWebEnginePage, QWebEngineScript
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from qutebrowser.config import configdata, config
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from qutebrowser.browser import (browsertab, eventfilter, shared, webelem,
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history, greasemonkey)
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from qutebrowser.browser.webengine import (webview, webengineelem, tabhistory,
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interceptor, webenginequtescheme,
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cookies, webenginedownloads,
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webenginesettings, certificateerror)
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from qutebrowser.misc import miscwidgets, objects, quitter
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from qutebrowser.utils import (usertypes, qtutils, log, javascript, utils,
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message, objreg, jinja, debug)
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from qutebrowser.keyinput import modeman
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from qutebrowser.qt import sip
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_qute_scheme_handler = None
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def init():
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"""Initialize QtWebEngine-specific modules."""
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# For some reason we need to keep a reference, otherwise the scheme handler
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# won't work...
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# https://www.riverbankcomputing.com/pipermail/pyqt/2016-September/038075.html
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global _qute_scheme_handler
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app = QApplication.instance()
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log.init.debug("Initializing qute://* handler...")
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_qute_scheme_handler = webenginequtescheme.QuteSchemeHandler(parent=app)
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_qute_scheme_handler.install(webenginesettings.default_profile)
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if webenginesettings.private_profile:
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_qute_scheme_handler.install(webenginesettings.private_profile)
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log.init.debug("Initializing request interceptor...")
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req_interceptor = interceptor.RequestInterceptor(parent=app)
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req_interceptor.install(webenginesettings.default_profile)
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if webenginesettings.private_profile:
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req_interceptor.install(webenginesettings.private_profile)
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log.init.debug("Initializing QtWebEngine downloads...")
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download_manager = webenginedownloads.DownloadManager(parent=app)
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download_manager.install(webenginesettings.default_profile)
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if webenginesettings.private_profile:
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download_manager.install(webenginesettings.private_profile)
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objreg.register('webengine-download-manager', download_manager)
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quitter.instance.shutting_down.connect(download_manager.shutdown)
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log.init.debug("Initializing cookie filter...")
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cookies.install_filter(webenginesettings.default_profile)
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if webenginesettings.private_profile:
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cookies.install_filter(webenginesettings.private_profile)
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# Clear visited links on web history clear
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for p in [webenginesettings.default_profile,
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webenginesettings.private_profile]:
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if not p:
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continue
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history.web_history.history_cleared.connect(p.clearAllVisitedLinks)
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history.web_history.url_cleared.connect(
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lambda url, profile=p: profile.clearVisitedLinks([url]))
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# Mapping worlds from usertypes.JsWorld to QWebEngineScript world IDs.
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_JS_WORLD_MAP = {
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usertypes.JsWorld.main: QWebEngineScript.MainWorld,
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usertypes.JsWorld.application: QWebEngineScript.ApplicationWorld,
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usertypes.JsWorld.user: QWebEngineScript.UserWorld,
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usertypes.JsWorld.jseval: QWebEngineScript.UserWorld + 1,
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}
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class WebEngineAction(browsertab.AbstractAction):
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"""QtWebEngine implementations related to web actions."""
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action_class = QWebEnginePage
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action_base = QWebEnginePage.WebAction
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def exit_fullscreen(self):
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self._widget.triggerPageAction(QWebEnginePage.ExitFullScreen)
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def save_page(self):
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"""Save the current page."""
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self._widget.triggerPageAction(QWebEnginePage.SavePage)
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def show_source(self, pygments=False):
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if pygments:
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self._show_source_pygments()
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return
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try:
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self._widget.triggerPageAction(QWebEnginePage.ViewSource)
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except AttributeError:
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# Qt < 5.8
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tb = objreg.get('tabbed-browser', scope='window',
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window=self._tab.win_id)
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urlstr = self._tab.url().toString(
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QUrl.RemoveUserInfo) # type: ignore[arg-type]
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# The original URL becomes the path of a view-source: URL
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# (without a host), but query/fragment should stay.
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url = QUrl('view-source:' + urlstr)
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tb.tabopen(url, background=False, related=True)
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class WebEnginePrinting(browsertab.AbstractPrinting):
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"""QtWebEngine implementations related to printing."""
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def check_pdf_support(self):
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pass
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def check_printer_support(self):
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if not hasattr(self._widget.page(), 'print'):
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raise browsertab.WebTabError(
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"Printing is unsupported with QtWebEngine on Qt < 5.8")
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def check_preview_support(self):
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raise browsertab.WebTabError(
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"Print previews are unsupported with QtWebEngine")
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def to_pdf(self, filename):
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self._widget.page().printToPdf(filename)
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def to_printer(self, printer, callback=None):
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if callback is None:
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callback = lambda _ok: None
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self._widget.page().print(printer, callback)
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class _WebEngineSearchWrapHandler:
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"""QtWebEngine implementations related to wrapping when searching.
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Attributes:
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flag_wrap: An additional flag indicating whether the last search
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used wrapping.
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_active_match: The 1-based index of the currently active match
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on the page.
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_total_matches: The total number of search matches on the page.
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_nowrap_available: Whether the functionality to prevent wrapping
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is available.
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"""
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def __init__(self):
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self._active_match = 0
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self._total_matches = 0
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self.flag_wrap = True
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self._nowrap_available = False
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def connect_signal(self, page):
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"""Connect to the findTextFinished signal of the page.
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Args:
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page: The QtWebEnginePage to connect to this handler.
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"""
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if not qtutils.version_check("5.14"):
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return
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try:
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# pylint: disable=unused-import
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from PyQt5.QtWebEngineCore import QWebEngineFindTextResult
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except ImportError:
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# WORKAROUND for some odd PyQt/packaging bug where the
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# findTextResult signal is available, but QWebEngineFindTextResult
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# is not. Seems to happen on e.g. Gentoo.
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log.webview.warning("Could not import QWebEngineFindTextResult "
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"despite running on Qt 5.14. You might need "
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"to rebuild PyQtWebEngine.")
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return
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page.findTextFinished.connect(self._store_match_data)
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self._nowrap_available = True
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def _store_match_data(self, result):
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"""Store information on the last match.
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The information will be checked against when wrapping is turned off.
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Args:
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result: A FindTextResult passed by the findTextFinished signal.
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"""
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self._active_match = result.activeMatch()
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self._total_matches = result.numberOfMatches()
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log.webview.debug("Active search match: {}/{}"
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.format(self._active_match, self._total_matches))
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def reset_match_data(self):
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"""Reset match information.
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Stale information could lead to next_result or prev_result misbehaving.
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"""
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self._active_match = 0
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self._total_matches = 0
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def prevent_wrapping(self, *, going_up):
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"""Prevent wrapping if possible and required.
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Returns True if a wrap was prevented and False if not.
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Args:
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going_up: Whether the search would scroll the page up or down.
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"""
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if (not self._nowrap_available or
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self.flag_wrap or self._total_matches == 0):
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return False
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elif going_up and self._active_match == 1:
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message.info("Search hit TOP")
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return True
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elif not going_up and self._active_match == self._total_matches:
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message.info("Search hit BOTTOM")
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return True
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else:
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return False
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class WebEngineSearch(browsertab.AbstractSearch):
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"""QtWebEngine implementations related to searching on the page.
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Attributes:
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_flags: The QWebEnginePage.FindFlags of the last search.
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_pending_searches: How many searches have been started but not called
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back yet.
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"""
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def __init__(self, tab, parent=None):
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super().__init__(tab, parent)
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self._flags = self._empty_flags()
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self._pending_searches = 0
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# The API necessary to stop wrapping was added in this version
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self._wrap_handler = _WebEngineSearchWrapHandler()
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def _empty_flags(self):
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return QWebEnginePage.FindFlags(0) # type: ignore[call-overload]
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def connect_signals(self):
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self._wrap_handler.connect_signal(self._widget.page())
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def _find(self, text, flags, callback, caller):
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"""Call findText on the widget."""
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self.search_displayed = True
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self._pending_searches += 1
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def wrapped_callback(found):
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"""Wrap the callback to do debug logging."""
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self._pending_searches -= 1
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if self._pending_searches > 0:
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# See https://github.com/qutebrowser/qutebrowser/issues/2442
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# and https://github.com/qt/qtwebengine/blob/5.10/src/core/web_contents_adapter.cpp#L924-L934
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log.webview.debug("Ignoring cancelled search callback with "
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"{} pending searches".format(
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self._pending_searches))
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return
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if sip.isdeleted(self._widget):
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# This happens when starting a search, and closing the tab
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# before results arrive.
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log.webview.debug("Ignoring finished search for deleted "
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"widget")
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return
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found_text = 'found' if found else "didn't find"
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if flags:
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flag_text = 'with flags {}'.format(debug.qflags_key(
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QWebEnginePage, flags, klass=QWebEnginePage.FindFlag))
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else:
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flag_text = ''
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log.webview.debug(' '.join([caller, found_text, text, flag_text])
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.strip())
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if callback is not None:
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callback(found)
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self.finished.emit(found)
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self._widget.page().findText(text, flags, wrapped_callback)
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def search(self, text, *, ignore_case=usertypes.IgnoreCase.never,
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reverse=False, wrap=True, result_cb=None):
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# Don't go to next entry on duplicate search
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if self.text == text and self.search_displayed:
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log.webview.debug("Ignoring duplicate search request"
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" for {}".format(text))
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return
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self.text = text
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self._flags = self._empty_flags()
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self._wrap_handler.reset_match_data()
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self._wrap_handler.flag_wrap = wrap
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if self._is_case_sensitive(ignore_case):
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self._flags |= QWebEnginePage.FindCaseSensitively
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if reverse:
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self._flags |= QWebEnginePage.FindBackward
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self._find(text, self._flags, result_cb, 'search')
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def clear(self):
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if self.search_displayed:
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self.cleared.emit()
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self.search_displayed = False
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self._wrap_handler.reset_match_data()
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self._widget.page().findText('')
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def prev_result(self, *, result_cb=None):
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# The int() here makes sure we get a copy of the flags.
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flags = QWebEnginePage.FindFlags(
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int(self._flags)) # type: ignore[call-overload]
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if flags & QWebEnginePage.FindBackward:
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if self._wrap_handler.prevent_wrapping(going_up=False):
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return
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flags &= ~QWebEnginePage.FindBackward
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else:
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if self._wrap_handler.prevent_wrapping(going_up=True):
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return
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flags |= QWebEnginePage.FindBackward
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self._find(self.text, flags, result_cb, 'prev_result')
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def next_result(self, *, result_cb=None):
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going_up = self._flags & QWebEnginePage.FindBackward
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if self._wrap_handler.prevent_wrapping(going_up=going_up):
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return
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self._find(self.text, self._flags, result_cb, 'next_result')
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class WebEngineCaret(browsertab.AbstractCaret):
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"""QtWebEngine implementations related to moving the cursor/selection."""
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def __init__(self,
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tab: 'WebEngineTab',
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mode_manager: modeman.ModeManager,
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parent: QWidget = None) -> None:
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super().__init__(mode_manager, parent)
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self._tab = tab
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def _flags(self):
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"""Get flags to pass to JS."""
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flags = set()
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if qtutils.version_check('5.7.1', compiled=False):
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flags.add('filter-prefix')
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if utils.is_windows:
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flags.add('windows')
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return list(flags)
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@pyqtSlot(usertypes.KeyMode)
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def _on_mode_entered(self, mode):
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if mode != usertypes.KeyMode.caret:
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return
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if self._tab.search.search_displayed:
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# We are currently in search mode.
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# convert the search to a blue selection so we can operate on it
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# https://bugreports.qt.io/browse/QTBUG-60673
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self._tab.search.clear()
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self._tab.run_js_async(
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javascript.assemble('caret', 'setFlags', self._flags()))
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self._js_call('setInitialCursor', callback=self._selection_cb)
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def _selection_cb(self, enabled):
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"""Emit selection_toggled based on setInitialCursor."""
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if self._mode_manager.mode != usertypes.KeyMode.caret:
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log.webview.debug("Ignoring selection cb due to mode change.")
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return
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if enabled is None:
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log.webview.debug("Ignoring selection status None")
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return
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if enabled:
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self.selection_toggled.emit(browsertab.SelectionState.normal)
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else:
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self.selection_toggled.emit(browsertab.SelectionState.none)
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@pyqtSlot(usertypes.KeyMode)
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def _on_mode_left(self, mode):
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if mode != usertypes.KeyMode.caret:
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return
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self.drop_selection()
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self._js_call('disableCaret')
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def move_to_next_line(self, count=1):
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self._js_call('moveDown', count)
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def move_to_prev_line(self, count=1):
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self._js_call('moveUp', count)
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def move_to_next_char(self, count=1):
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self._js_call('moveRight', count)
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def move_to_prev_char(self, count=1):
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self._js_call('moveLeft', count)
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def move_to_end_of_word(self, count=1):
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self._js_call('moveToEndOfWord', count)
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def move_to_next_word(self, count=1):
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self._js_call('moveToNextWord', count)
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def move_to_prev_word(self, count=1):
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self._js_call('moveToPreviousWord', count)
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def move_to_start_of_line(self):
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self._js_call('moveToStartOfLine')
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def move_to_end_of_line(self):
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self._js_call('moveToEndOfLine')
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def move_to_start_of_next_block(self, count=1):
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self._js_call('moveToStartOfNextBlock', count)
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def move_to_start_of_prev_block(self, count=1):
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self._js_call('moveToStartOfPrevBlock', count)
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def move_to_end_of_next_block(self, count=1):
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self._js_call('moveToEndOfNextBlock', count)
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def move_to_end_of_prev_block(self, count=1):
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self._js_call('moveToEndOfPrevBlock', count)
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def move_to_start_of_document(self):
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self._js_call('moveToStartOfDocument')
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def move_to_end_of_document(self):
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self._js_call('moveToEndOfDocument')
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def toggle_selection(self, line=False):
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self._js_call('toggleSelection', line,
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callback=self._toggle_sel_translate)
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def drop_selection(self):
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self._js_call('dropSelection')
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def selection(self, callback):
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# Not using selectedText() as WORKAROUND for
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# https://bugreports.qt.io/browse/QTBUG-53134
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# Even on Qt 5.10 selectedText() seems to work poorly, see
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# https://github.com/qutebrowser/qutebrowser/issues/3523
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self._tab.run_js_async(javascript.assemble('caret', 'getSelection'),
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callback)
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def reverse_selection(self):
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self._js_call('reverseSelection')
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def _follow_selected_cb_wrapped(self, js_elem, tab):
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try:
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self._follow_selected_cb(js_elem, tab)
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finally:
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self.follow_selected_done.emit()
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def _follow_selected_cb(self, js_elem, tab):
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"""Callback for javascript which clicks the selected element.
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Args:
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js_elem: The element serialized from javascript.
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tab: Open in a new tab.
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"""
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if js_elem is None:
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return
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if js_elem == "focused":
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# we had a focused element, not a selected one. Just send <enter>
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self._follow_enter(tab)
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return
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assert isinstance(js_elem, dict), js_elem
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elem = webengineelem.WebEngineElement(js_elem, tab=self._tab)
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if tab:
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click_type = usertypes.ClickTarget.tab
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else:
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click_type = usertypes.ClickTarget.normal
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# Only click if we see a link
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if elem.is_link():
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log.webview.debug("Found link in selection, clicking. ClickTarget "
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"{}, elem {}".format(click_type, elem))
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try:
|
|
elem.click(click_type)
|
|
except webelem.Error as e:
|
|
message.error(str(e))
|
|
|
|
def follow_selected(self, *, tab=False):
|
|
if self._tab.search.search_displayed:
|
|
# We are currently in search mode.
|
|
# let's click the link via a fake-click
|
|
# https://bugreports.qt.io/browse/QTBUG-60673
|
|
self._tab.search.clear()
|
|
|
|
log.webview.debug("Clicking a searched link via fake key press.")
|
|
# send a fake enter, clicking the orange selection box
|
|
self._follow_enter(tab)
|
|
else:
|
|
# click an existing blue selection
|
|
js_code = javascript.assemble('webelem',
|
|
'find_selected_focused_link')
|
|
self._tab.run_js_async(
|
|
js_code,
|
|
lambda jsret: self._follow_selected_cb_wrapped(jsret, tab))
|
|
|
|
def _js_call(self, command, *args, callback=None):
|
|
code = javascript.assemble('caret', command, *args)
|
|
self._tab.run_js_async(code, callback)
|
|
|
|
def _toggle_sel_translate(self, state_str):
|
|
if self._mode_manager.mode != usertypes.KeyMode.caret:
|
|
# This may happen if the user switches to another mode after
|
|
# `:toggle-selection` is executed and before this callback function
|
|
# is asynchronously called.
|
|
log.misc.debug("Ignoring caret selection callback in {}".format(
|
|
self._mode_manager.mode))
|
|
return
|
|
if state_str is None:
|
|
message.error("Error toggling caret selection")
|
|
return
|
|
state = browsertab.SelectionState[state_str]
|
|
self.selection_toggled.emit(state)
|
|
|
|
|
|
class WebEngineScroller(browsertab.AbstractScroller):
|
|
|
|
"""QtWebEngine implementations related to scrolling."""
|
|
|
|
def __init__(self, tab, parent=None):
|
|
super().__init__(tab, parent)
|
|
self._pos_perc = (0, 0)
|
|
self._pos_px = QPoint()
|
|
self._at_bottom = False
|
|
|
|
def _init_widget(self, widget):
|
|
super()._init_widget(widget)
|
|
page = widget.page()
|
|
page.scrollPositionChanged.connect(self._update_pos)
|
|
|
|
def _repeated_key_press(self, key, count=1, modifier=Qt.NoModifier):
|
|
"""Send count fake key presses to this scroller's WebEngineTab."""
|
|
for _ in range(min(count, 1000)):
|
|
self._tab.fake_key_press(key, modifier)
|
|
|
|
@pyqtSlot(QPointF)
|
|
def _update_pos(self, pos):
|
|
"""Update the scroll position attributes when it changed."""
|
|
self._pos_px = pos.toPoint()
|
|
contents_size = self._widget.page().contentsSize()
|
|
|
|
scrollable_x = contents_size.width() - self._widget.width()
|
|
if scrollable_x == 0:
|
|
perc_x = 0
|
|
else:
|
|
try:
|
|
perc_x = min(100, round(100 / scrollable_x * pos.x()))
|
|
except ValueError:
|
|
# https://github.com/qutebrowser/qutebrowser/issues/3219
|
|
log.misc.debug("Got ValueError for perc_x!")
|
|
log.misc.debug("contents_size.width(): {}".format(
|
|
contents_size.width()))
|
|
log.misc.debug("self._widget.width(): {}".format(
|
|
self._widget.width()))
|
|
log.misc.debug("scrollable_x: {}".format(scrollable_x))
|
|
log.misc.debug("pos.x(): {}".format(pos.x()))
|
|
raise
|
|
|
|
scrollable_y = contents_size.height() - self._widget.height()
|
|
if scrollable_y == 0:
|
|
perc_y = 0
|
|
else:
|
|
try:
|
|
perc_y = min(100, round(100 / scrollable_y * pos.y()))
|
|
except ValueError:
|
|
# https://github.com/qutebrowser/qutebrowser/issues/3219
|
|
log.misc.debug("Got ValueError for perc_y!")
|
|
log.misc.debug("contents_size.height(): {}".format(
|
|
contents_size.height()))
|
|
log.misc.debug("self._widget.height(): {}".format(
|
|
self._widget.height()))
|
|
log.misc.debug("scrollable_y: {}".format(scrollable_y))
|
|
log.misc.debug("pos.y(): {}".format(pos.y()))
|
|
raise
|
|
|
|
self._at_bottom = math.ceil(pos.y()) >= scrollable_y
|
|
|
|
if (self._pos_perc != (perc_x, perc_y) or
|
|
'no-scroll-filtering' in objects.debug_flags):
|
|
self._pos_perc = perc_x, perc_y
|
|
self.perc_changed.emit(*self._pos_perc)
|
|
|
|
def pos_px(self):
|
|
return self._pos_px
|
|
|
|
def pos_perc(self):
|
|
return self._pos_perc
|
|
|
|
def to_perc(self, x=None, y=None):
|
|
js_code = javascript.assemble('scroll', 'to_perc', x, y)
|
|
self._tab.run_js_async(js_code)
|
|
|
|
def to_point(self, point):
|
|
js_code = javascript.assemble('window', 'scroll', point.x(), point.y())
|
|
self._tab.run_js_async(js_code)
|
|
|
|
def to_anchor(self, name):
|
|
url = self._tab.url()
|
|
url.setFragment(name)
|
|
self._tab.load_url(url)
|
|
|
|
def delta(self, x=0, y=0):
|
|
self._tab.run_js_async(javascript.assemble('window', 'scrollBy', x, y))
|
|
|
|
def delta_page(self, x=0, y=0):
|
|
js_code = javascript.assemble('scroll', 'delta_page', x, y)
|
|
self._tab.run_js_async(js_code)
|
|
|
|
def up(self, count=1):
|
|
self._repeated_key_press(Qt.Key_Up, count)
|
|
|
|
def down(self, count=1):
|
|
self._repeated_key_press(Qt.Key_Down, count)
|
|
|
|
def left(self, count=1):
|
|
self._repeated_key_press(Qt.Key_Left, count)
|
|
|
|
def right(self, count=1):
|
|
self._repeated_key_press(Qt.Key_Right, count)
|
|
|
|
def top(self):
|
|
self._tab.fake_key_press(Qt.Key_Home)
|
|
|
|
def bottom(self):
|
|
self._tab.fake_key_press(Qt.Key_End)
|
|
|
|
def page_up(self, count=1):
|
|
self._repeated_key_press(Qt.Key_PageUp, count)
|
|
|
|
def page_down(self, count=1):
|
|
self._repeated_key_press(Qt.Key_PageDown, count)
|
|
|
|
def at_top(self):
|
|
return self.pos_px().y() == 0
|
|
|
|
def at_bottom(self):
|
|
return self._at_bottom
|
|
|
|
|
|
class WebEngineHistoryPrivate(browsertab.AbstractHistoryPrivate):
|
|
|
|
"""History-related methods which are not part of the extension API."""
|
|
|
|
def serialize(self):
|
|
if not qtutils.version_check('5.9', compiled=False):
|
|
# WORKAROUND for
|
|
# https://github.com/qutebrowser/qutebrowser/issues/2289
|
|
# Don't use the history's currentItem here, because of
|
|
# https://bugreports.qt.io/browse/QTBUG-59599 and because it doesn't
|
|
# contain view-source.
|
|
scheme = self._tab.url().scheme()
|
|
if scheme in ['view-source', 'chrome']:
|
|
raise browsertab.WebTabError("Can't serialize special URL!")
|
|
return qtutils.serialize(self._history)
|
|
|
|
def deserialize(self, data):
|
|
qtutils.deserialize(data, self._history)
|
|
|
|
def _load_items_workaround(self, items):
|
|
"""WORKAROUND for session loading not working on Qt 5.15.
|
|
|
|
Just load the current URL, see
|
|
https://github.com/qutebrowser/qutebrowser/issues/5359
|
|
"""
|
|
if not items:
|
|
return
|
|
|
|
for i, item in enumerate(items):
|
|
if item.active:
|
|
cur_idx = i
|
|
break
|
|
|
|
url = items[cur_idx].url
|
|
if (url.scheme(), url.host()) == ('qute', 'back') and cur_idx >= 1:
|
|
url = items[cur_idx - 1].url
|
|
|
|
self._tab.load_url(url)
|
|
|
|
def load_items(self, items):
|
|
if qtutils.version_check('5.15', compiled=False):
|
|
self._load_items_workaround(items)
|
|
return
|
|
|
|
if items:
|
|
self._tab.before_load_started.emit(items[-1].url)
|
|
|
|
stream, _data, cur_data = tabhistory.serialize(items)
|
|
qtutils.deserialize_stream(stream, self._history)
|
|
|
|
@pyqtSlot()
|
|
def _on_load_finished():
|
|
self._tab.scroller.to_point(cur_data['scroll-pos'])
|
|
self._tab.load_finished.disconnect(_on_load_finished)
|
|
|
|
if cur_data is not None:
|
|
if 'zoom' in cur_data:
|
|
self._tab.zoom.set_factor(cur_data['zoom'])
|
|
if ('scroll-pos' in cur_data and
|
|
self._tab.scroller.pos_px() == QPoint(0, 0)):
|
|
self._tab.load_finished.connect(_on_load_finished)
|
|
|
|
|
|
class WebEngineHistory(browsertab.AbstractHistory):
|
|
|
|
"""QtWebEngine implementations related to page history."""
|
|
|
|
def __init__(self, tab):
|
|
super().__init__(tab)
|
|
self.private_api = WebEngineHistoryPrivate(tab)
|
|
|
|
def __len__(self):
|
|
return len(self._history)
|
|
|
|
def __iter__(self):
|
|
return iter(self._history.items())
|
|
|
|
def current_idx(self):
|
|
return self._history.currentItemIndex()
|
|
|
|
def can_go_back(self):
|
|
return self._history.canGoBack()
|
|
|
|
def can_go_forward(self):
|
|
return self._history.canGoForward()
|
|
|
|
def _item_at(self, i):
|
|
return self._history.itemAt(i)
|
|
|
|
def _go_to_item(self, item):
|
|
self._tab.before_load_started.emit(item.url())
|
|
self._history.goToItem(item)
|
|
|
|
def back_items(self):
|
|
return self._history.backItems(self._history.count())
|
|
|
|
def forward_items(self):
|
|
return self._history.forwardItems(self._history.count())
|
|
|
|
|
|
class WebEngineZoom(browsertab.AbstractZoom):
|
|
|
|
"""QtWebEngine implementations related to zooming."""
|
|
|
|
def _set_factor_internal(self, factor):
|
|
self._widget.setZoomFactor(factor)
|
|
|
|
|
|
class WebEngineElements(browsertab.AbstractElements):
|
|
|
|
"""QtWebEngine implemementations related to elements on the page."""
|
|
|
|
def __init__(self, tab: 'WebEngineTab') -> None:
|
|
super().__init__()
|
|
self._tab = tab
|
|
|
|
def _js_cb_multiple(self, callback, error_cb, js_elems):
|
|
"""Handle found elements coming from JS and call the real callback.
|
|
|
|
Args:
|
|
callback: The callback to call with the found elements.
|
|
error_cb: The callback to call in case of an error.
|
|
js_elems: The elements serialized from javascript.
|
|
"""
|
|
if js_elems is None:
|
|
error_cb(webelem.Error("Unknown error while getting "
|
|
"elements"))
|
|
return
|
|
elif not js_elems['success']:
|
|
error_cb(webelem.Error(js_elems['error']))
|
|
return
|
|
|
|
elems = []
|
|
for js_elem in js_elems['result']:
|
|
elem = webengineelem.WebEngineElement(js_elem, tab=self._tab)
|
|
elems.append(elem)
|
|
callback(elems)
|
|
|
|
def _js_cb_single(self, callback, js_elem):
|
|
"""Handle a found focus elem coming from JS and call the real callback.
|
|
|
|
Args:
|
|
callback: The callback to call with the found element.
|
|
Called with a WebEngineElement or None.
|
|
js_elem: The element serialized from javascript.
|
|
"""
|
|
debug_str = ('None' if js_elem is None
|
|
else utils.elide(repr(js_elem), 1000))
|
|
log.webview.debug("Got element from JS: {}".format(debug_str))
|
|
|
|
if js_elem is None:
|
|
callback(None)
|
|
else:
|
|
elem = webengineelem.WebEngineElement(js_elem, tab=self._tab)
|
|
callback(elem)
|
|
|
|
def find_css(self, selector, callback, error_cb, *,
|
|
only_visible=False):
|
|
js_code = javascript.assemble('webelem', 'find_css', selector,
|
|
only_visible)
|
|
js_cb = functools.partial(self._js_cb_multiple, callback, error_cb)
|
|
self._tab.run_js_async(js_code, js_cb)
|
|
|
|
def find_id(self, elem_id, callback):
|
|
js_code = javascript.assemble('webelem', 'find_id', elem_id)
|
|
js_cb = functools.partial(self._js_cb_single, callback)
|
|
self._tab.run_js_async(js_code, js_cb)
|
|
|
|
def find_focused(self, callback):
|
|
js_code = javascript.assemble('webelem', 'find_focused')
|
|
js_cb = functools.partial(self._js_cb_single, callback)
|
|
self._tab.run_js_async(js_code, js_cb)
|
|
|
|
def find_at_pos(self, pos, callback):
|
|
assert pos.x() >= 0, pos
|
|
assert pos.y() >= 0, pos
|
|
pos /= self._tab.zoom.factor()
|
|
js_code = javascript.assemble('webelem', 'find_at_pos',
|
|
pos.x(), pos.y())
|
|
js_cb = functools.partial(self._js_cb_single, callback)
|
|
self._tab.run_js_async(js_code, js_cb)
|
|
|
|
|
|
class WebEngineAudio(browsertab.AbstractAudio):
|
|
|
|
"""QtWebEngine implemementations related to audio/muting.
|
|
|
|
Attributes:
|
|
_overridden: Whether the user toggled muting manually.
|
|
If that's the case, we leave it alone.
|
|
"""
|
|
|
|
def __init__(self, tab, parent=None):
|
|
super().__init__(tab, parent)
|
|
self._overridden = False
|
|
|
|
def _connect_signals(self):
|
|
page = self._widget.page()
|
|
page.audioMutedChanged.connect(self.muted_changed)
|
|
page.recentlyAudibleChanged.connect(self.recently_audible_changed)
|
|
self._tab.url_changed.connect(self._on_url_changed)
|
|
config.instance.changed.connect(self._on_config_changed)
|
|
|
|
def set_muted(self, muted: bool, override: bool = False) -> None:
|
|
was_muted = self.is_muted()
|
|
self._overridden = override
|
|
assert self._widget is not None
|
|
page = self._widget.page()
|
|
page.setAudioMuted(muted)
|
|
if was_muted != muted and qtutils.version_check('5.15'):
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-85118
|
|
# so that the tab title at least updates the muted indicator
|
|
self.muted_changed.emit(muted)
|
|
|
|
def is_muted(self):
|
|
page = self._widget.page()
|
|
return page.isAudioMuted()
|
|
|
|
def is_recently_audible(self):
|
|
page = self._widget.page()
|
|
return page.recentlyAudible()
|
|
|
|
@pyqtSlot(QUrl)
|
|
def _on_url_changed(self, url):
|
|
if self._overridden or not url.isValid():
|
|
return
|
|
mute = config.instance.get('content.mute', url=url)
|
|
self.set_muted(mute)
|
|
|
|
@config.change_filter('content.mute')
|
|
def _on_config_changed(self):
|
|
self._on_url_changed(self._tab.url())
|
|
|
|
|
|
class _WebEnginePermissions(QObject):
|
|
|
|
"""Handling of various permission-related signals."""
|
|
|
|
# Using 0 as WORKAROUND for:
|
|
# https://www.riverbankcomputing.com/pipermail/pyqt/2019-July/041903.html
|
|
|
|
_options = {
|
|
0: 'content.notifications',
|
|
QWebEnginePage.Geolocation: 'content.geolocation',
|
|
QWebEnginePage.MediaAudioCapture: 'content.media.audio_capture',
|
|
QWebEnginePage.MediaVideoCapture: 'content.media.video_capture',
|
|
QWebEnginePage.MediaAudioVideoCapture:
|
|
'content.media.audio_video_capture',
|
|
}
|
|
|
|
_messages = {
|
|
0: 'show notifications',
|
|
QWebEnginePage.Geolocation: 'access your location',
|
|
QWebEnginePage.MediaAudioCapture: 'record audio',
|
|
QWebEnginePage.MediaVideoCapture: 'record video',
|
|
QWebEnginePage.MediaAudioVideoCapture: 'record audio/video',
|
|
}
|
|
|
|
def __init__(self, tab, parent=None):
|
|
super().__init__(parent)
|
|
self._tab = tab
|
|
self._widget = typing.cast(QWidget, None)
|
|
|
|
try:
|
|
self._options.update({
|
|
QWebEnginePage.MouseLock:
|
|
'content.mouse_lock',
|
|
})
|
|
self._messages.update({
|
|
QWebEnginePage.MouseLock:
|
|
'hide your mouse pointer',
|
|
})
|
|
except AttributeError:
|
|
# Added in Qt 5.8
|
|
pass
|
|
try:
|
|
self._options.update({
|
|
QWebEnginePage.DesktopVideoCapture:
|
|
'content.desktop_capture',
|
|
QWebEnginePage.DesktopAudioVideoCapture:
|
|
'content.desktop_capture',
|
|
})
|
|
self._messages.update({
|
|
QWebEnginePage.DesktopVideoCapture:
|
|
'capture your desktop',
|
|
QWebEnginePage.DesktopAudioVideoCapture:
|
|
'capture your desktop and audio',
|
|
})
|
|
except AttributeError:
|
|
# Added in Qt 5.10
|
|
pass
|
|
|
|
assert self._options.keys() == self._messages.keys()
|
|
|
|
def connect_signals(self):
|
|
"""Connect related signals from the QWebEnginePage."""
|
|
page = self._widget.page()
|
|
page.fullScreenRequested.connect(
|
|
self._on_fullscreen_requested)
|
|
page.featurePermissionRequested.connect(
|
|
self._on_feature_permission_requested)
|
|
|
|
if qtutils.version_check('5.11'):
|
|
page.quotaRequested.connect(
|
|
self._on_quota_requested)
|
|
page.registerProtocolHandlerRequested.connect(
|
|
self._on_register_protocol_handler_requested)
|
|
|
|
@pyqtSlot('QWebEngineFullScreenRequest')
|
|
def _on_fullscreen_requested(self, request):
|
|
request.accept()
|
|
on = request.toggleOn()
|
|
|
|
self._tab.data.fullscreen = on
|
|
self._tab.fullscreen_requested.emit(on)
|
|
if on:
|
|
timeout = config.val.content.fullscreen.overlay_timeout
|
|
if timeout != 0:
|
|
notification = miscwidgets.FullscreenNotification(self._widget)
|
|
notification.set_timeout(timeout)
|
|
notification.show()
|
|
|
|
@pyqtSlot(QUrl, 'QWebEnginePage::Feature')
|
|
def _on_feature_permission_requested(self, url, feature):
|
|
"""Ask the user for approval for geolocation/media/etc.."""
|
|
page = self._widget.page()
|
|
grant_permission = functools.partial(
|
|
page.setFeaturePermission, url, feature,
|
|
QWebEnginePage.PermissionGrantedByUser)
|
|
deny_permission = functools.partial(
|
|
page.setFeaturePermission, url, feature,
|
|
QWebEnginePage.PermissionDeniedByUser)
|
|
|
|
permission_str = debug.qenum_key(QWebEnginePage, feature)
|
|
|
|
if not url.isValid():
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-85116
|
|
is_qtbug = (qtutils.version_check('5.15.0',
|
|
compiled=False,
|
|
exact=True) and
|
|
self._tab.is_private and
|
|
feature == QWebEnginePage.Notifications)
|
|
logger = log.webview.debug if is_qtbug else log.webview.warning
|
|
logger("Ignoring feature permission {} for invalid URL {}".format(
|
|
permission_str, url))
|
|
deny_permission()
|
|
return
|
|
|
|
if feature not in self._options:
|
|
log.webview.error("Unhandled feature permission {}".format(
|
|
permission_str))
|
|
deny_permission()
|
|
return
|
|
|
|
if (
|
|
hasattr(QWebEnginePage, 'DesktopVideoCapture') and
|
|
feature in [QWebEnginePage.DesktopVideoCapture,
|
|
QWebEnginePage.DesktopAudioVideoCapture] and
|
|
qtutils.version_check('5.13', compiled=False) and
|
|
not qtutils.version_check('5.13.2', compiled=False)
|
|
):
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-78016
|
|
log.webview.warning("Ignoring desktop sharing request due to "
|
|
"crashes in Qt < 5.13.2")
|
|
deny_permission()
|
|
return
|
|
|
|
question = shared.feature_permission(
|
|
url=url.adjusted(QUrl.RemovePath),
|
|
option=self._options[feature], msg=self._messages[feature],
|
|
yes_action=grant_permission, no_action=deny_permission,
|
|
abort_on=[self._tab.abort_questions])
|
|
|
|
if question is not None:
|
|
page.featurePermissionRequestCanceled.connect(
|
|
functools.partial(self._on_feature_permission_cancelled,
|
|
question, url, feature))
|
|
|
|
def _on_feature_permission_cancelled(self, question, url, feature,
|
|
cancelled_url, cancelled_feature):
|
|
"""Slot invoked when a feature permission request was cancelled.
|
|
|
|
To be used with functools.partial.
|
|
"""
|
|
if url == cancelled_url and feature == cancelled_feature:
|
|
try:
|
|
question.abort()
|
|
except RuntimeError:
|
|
# The question could already be deleted, e.g. because it was
|
|
# aborted after a loadStarted signal.
|
|
pass
|
|
|
|
def _on_quota_requested(self, request):
|
|
size = utils.format_size(request.requestedSize())
|
|
shared.feature_permission(
|
|
url=request.origin().adjusted(QUrl.RemovePath),
|
|
option='content.persistent_storage',
|
|
msg='use {} of persistent storage'.format(size),
|
|
yes_action=request.accept, no_action=request.reject,
|
|
abort_on=[self._tab.abort_questions],
|
|
blocking=True)
|
|
|
|
def _on_register_protocol_handler_requested(self, request):
|
|
shared.feature_permission(
|
|
url=request.origin().adjusted(QUrl.RemovePath),
|
|
option='content.register_protocol_handler',
|
|
msg='open all {} links'.format(request.scheme()),
|
|
yes_action=request.accept, no_action=request.reject,
|
|
abort_on=[self._tab.abort_questions],
|
|
blocking=True)
|
|
|
|
|
|
class _WebEngineScripts(QObject):
|
|
|
|
def __init__(self, tab, parent=None):
|
|
super().__init__(parent)
|
|
self._tab = tab
|
|
self._widget = typing.cast(QWidget, None)
|
|
self._greasemonkey = greasemonkey.gm_manager
|
|
|
|
def connect_signals(self):
|
|
"""Connect signals to our private slots."""
|
|
config.instance.changed.connect(self._on_config_changed)
|
|
|
|
self._tab.search.cleared.connect(functools.partial(
|
|
self._update_stylesheet, searching=False))
|
|
self._tab.search.finished.connect(self._update_stylesheet)
|
|
|
|
@pyqtSlot(str)
|
|
def _on_config_changed(self, option):
|
|
if option in ['scrolling.bar', 'content.user_stylesheets']:
|
|
self._init_stylesheet()
|
|
self._update_stylesheet()
|
|
|
|
@pyqtSlot(bool)
|
|
def _update_stylesheet(self, searching=False):
|
|
"""Update the custom stylesheet in existing tabs."""
|
|
css = shared.get_user_stylesheet(searching=searching)
|
|
code = javascript.assemble('stylesheet', 'set_css', css)
|
|
self._tab.run_js_async(code)
|
|
|
|
def _inject_early_js(self, name, js_code, *,
|
|
world=QWebEngineScript.ApplicationWorld,
|
|
subframes=False):
|
|
"""Inject the given script to run early on a page load.
|
|
|
|
This runs the script both on DocumentCreation and DocumentReady as on
|
|
some internal pages, DocumentCreation will not work.
|
|
|
|
That is a WORKAROUND for https://bugreports.qt.io/browse/QTBUG-66011
|
|
"""
|
|
scripts = self._widget.page().scripts()
|
|
for injection in ['creation', 'ready']:
|
|
injection_points = {
|
|
'creation': QWebEngineScript.DocumentCreation,
|
|
'ready': QWebEngineScript.DocumentReady,
|
|
}
|
|
script = QWebEngineScript()
|
|
script.setInjectionPoint(injection_points[injection])
|
|
script.setSourceCode(js_code)
|
|
script.setWorldId(world)
|
|
script.setRunsOnSubFrames(subframes)
|
|
script.setName('_qute_{}_{}'.format(name, injection))
|
|
scripts.insert(script)
|
|
|
|
def _remove_early_js(self, name):
|
|
"""Remove an early QWebEngineScript."""
|
|
scripts = self._widget.page().scripts()
|
|
for injection in ['creation', 'ready']:
|
|
full_name = '_qute_{}_{}'.format(name, injection)
|
|
script = scripts.findScript(full_name)
|
|
if not script.isNull():
|
|
scripts.remove(script)
|
|
|
|
def init(self):
|
|
"""Initialize global qutebrowser JavaScript."""
|
|
js_code = javascript.wrap_global(
|
|
'scripts',
|
|
utils.read_file('javascript/scroll.js'),
|
|
utils.read_file('javascript/webelem.js'),
|
|
utils.read_file('javascript/caret.js'),
|
|
)
|
|
if not qtutils.version_check('5.12'):
|
|
# WORKAROUND for Qt versions < 5.12 not exposing window.print().
|
|
# Qt 5.12 has a printRequested() signal so we don't need this hack
|
|
# anymore.
|
|
self._inject_early_js('js',
|
|
utils.read_file('javascript/print.js'),
|
|
subframes=True,
|
|
world=QWebEngineScript.MainWorld)
|
|
# FIXME:qtwebengine what about subframes=True?
|
|
self._inject_early_js('js', js_code, subframes=True)
|
|
self._init_stylesheet()
|
|
|
|
# The Greasemonkey metadata block support in QtWebEngine only starts at
|
|
# Qt 5.8. With 5.7.1, we need to inject the scripts ourselves in
|
|
# response to urlChanged.
|
|
if not qtutils.version_check('5.8'):
|
|
self._tab.url_changed.connect(
|
|
self._inject_greasemonkey_scripts_for_url)
|
|
else:
|
|
self._greasemonkey.scripts_reloaded.connect(
|
|
self._inject_all_greasemonkey_scripts)
|
|
self._inject_all_greasemonkey_scripts()
|
|
self._inject_site_specific_quirks()
|
|
|
|
def _init_stylesheet(self):
|
|
"""Initialize custom stylesheets.
|
|
|
|
Partially inspired by QupZilla:
|
|
https://github.com/QupZilla/qupzilla/blob/v2.0/src/lib/app/mainapplication.cpp#L1063-L1101
|
|
"""
|
|
self._remove_early_js('stylesheet')
|
|
css = shared.get_user_stylesheet()
|
|
js_code = javascript.wrap_global(
|
|
'stylesheet',
|
|
utils.read_file('javascript/stylesheet.js'),
|
|
javascript.assemble('stylesheet', 'set_css', css),
|
|
)
|
|
self._inject_early_js('stylesheet', js_code, subframes=True)
|
|
|
|
@pyqtSlot(QUrl)
|
|
def _inject_greasemonkey_scripts_for_url(self, url):
|
|
matching_scripts = self._greasemonkey.scripts_for(url)
|
|
self._inject_greasemonkey_scripts(
|
|
matching_scripts.start, QWebEngineScript.DocumentCreation, True)
|
|
self._inject_greasemonkey_scripts(
|
|
matching_scripts.end, QWebEngineScript.DocumentReady, False)
|
|
self._inject_greasemonkey_scripts(
|
|
matching_scripts.idle, QWebEngineScript.Deferred, False)
|
|
|
|
@pyqtSlot()
|
|
def _inject_all_greasemonkey_scripts(self):
|
|
scripts = self._greasemonkey.all_scripts()
|
|
self._inject_greasemonkey_scripts(scripts)
|
|
|
|
def _remove_all_greasemonkey_scripts(self):
|
|
page_scripts = self._widget.page().scripts()
|
|
for script in page_scripts.toList():
|
|
if script.name().startswith("GM-"):
|
|
log.greasemonkey.debug('Removing script: {}'
|
|
.format(script.name()))
|
|
removed = page_scripts.remove(script)
|
|
assert removed, script.name()
|
|
|
|
def _inject_greasemonkey_scripts(self, scripts=None, injection_point=None,
|
|
remove_first=True):
|
|
"""Register user JavaScript files with the current tab.
|
|
|
|
Args:
|
|
scripts: A list of GreasemonkeyScripts, or None to add all
|
|
known by the Greasemonkey subsystem.
|
|
injection_point: The QWebEngineScript::InjectionPoint stage
|
|
to inject the script into, None to use
|
|
auto-detection.
|
|
remove_first: Whether to remove all previously injected
|
|
scripts before adding these ones.
|
|
"""
|
|
if sip.isdeleted(self._widget):
|
|
return
|
|
|
|
# Since we are inserting scripts into a per-tab collection,
|
|
# rather than just injecting scripts on page load, we need to
|
|
# make sure we replace existing scripts, not just add new ones.
|
|
# While, taking care not to remove any other scripts that might
|
|
# have been added elsewhere, like the one for stylesheets.
|
|
page_scripts = self._widget.page().scripts()
|
|
if remove_first:
|
|
self._remove_all_greasemonkey_scripts()
|
|
|
|
if not scripts:
|
|
return
|
|
|
|
for script in scripts:
|
|
new_script = QWebEngineScript()
|
|
try:
|
|
world = int(script.jsworld)
|
|
if not 0 <= world <= qtutils.MAX_WORLD_ID:
|
|
log.greasemonkey.error(
|
|
"script {} has invalid value for '@qute-js-world'"
|
|
": {}, should be between 0 and {}"
|
|
.format(
|
|
script.name,
|
|
script.jsworld,
|
|
qtutils.MAX_WORLD_ID))
|
|
continue
|
|
except ValueError:
|
|
try:
|
|
world = _JS_WORLD_MAP[usertypes.JsWorld[
|
|
script.jsworld.lower()]]
|
|
except KeyError:
|
|
log.greasemonkey.error(
|
|
"script {} has invalid value for '@qute-js-world'"
|
|
": {}".format(script.name, script.jsworld))
|
|
continue
|
|
new_script.setWorldId(world)
|
|
new_script.setSourceCode(script.code())
|
|
new_script.setName("GM-{}".format(script.name))
|
|
new_script.setRunsOnSubFrames(script.runs_on_sub_frames)
|
|
|
|
# Override the @run-at value parsed by QWebEngineScript if desired.
|
|
if injection_point:
|
|
new_script.setInjectionPoint(injection_point)
|
|
elif script.needs_document_end_workaround():
|
|
log.greasemonkey.debug("Forcing @run-at document-end for {}"
|
|
.format(script.name))
|
|
new_script.setInjectionPoint(QWebEngineScript.DocumentReady)
|
|
|
|
log.greasemonkey.debug('adding script: {}'
|
|
.format(new_script.name()))
|
|
page_scripts.insert(new_script)
|
|
|
|
def _inject_site_specific_quirks(self):
|
|
"""Add site-specific quirk scripts.
|
|
|
|
NOTE: This isn't implemented for Qt 5.7 because of different UserScript
|
|
semantics there. The WhatsApp Web quirk isn't needed for Qt < 5.13.
|
|
The globalthis_quirk would be, but let's not keep such old QtWebEngine
|
|
versions on life support.
|
|
"""
|
|
if not config.val.content.site_specific_quirks:
|
|
return
|
|
|
|
page_scripts = self._widget.page().scripts()
|
|
quirks = [
|
|
(
|
|
'whatsapp_web_quirk',
|
|
QWebEngineScript.DocumentReady,
|
|
QWebEngineScript.ApplicationWorld,
|
|
),
|
|
]
|
|
if not qtutils.version_check('5.13'):
|
|
quirks.append(('globalthis_quirk',
|
|
QWebEngineScript.DocumentCreation,
|
|
QWebEngineScript.MainWorld))
|
|
|
|
for filename, injection_point, world in quirks:
|
|
script = QWebEngineScript()
|
|
script.setName(filename)
|
|
script.setWorldId(world)
|
|
script.setInjectionPoint(injection_point)
|
|
src = utils.read_file("javascript/{}.user.js".format(filename))
|
|
script.setSourceCode(src)
|
|
page_scripts.insert(script)
|
|
|
|
|
|
class WebEngineTabPrivate(browsertab.AbstractTabPrivate):
|
|
|
|
"""QtWebEngine-related methods which aren't part of the public API."""
|
|
|
|
def networkaccessmanager(self):
|
|
return None
|
|
|
|
def user_agent(self):
|
|
return None
|
|
|
|
def clear_ssl_errors(self):
|
|
raise browsertab.UnsupportedOperationError
|
|
|
|
def event_target(self):
|
|
return self._widget.render_widget()
|
|
|
|
def shutdown(self):
|
|
self._tab.shutting_down.emit()
|
|
self._tab.action.exit_fullscreen()
|
|
self._widget.shutdown()
|
|
|
|
def run_js_sync(self, code):
|
|
raise browsertab.UnsupportedOperationError
|
|
|
|
|
|
class WebEngineTab(browsertab.AbstractTab):
|
|
|
|
"""A QtWebEngine tab in the browser.
|
|
|
|
Signals:
|
|
abort_questions: Emitted when a new load started or we're shutting
|
|
down.
|
|
"""
|
|
|
|
abort_questions = pyqtSignal()
|
|
|
|
def __init__(self, *, win_id, mode_manager, private, parent=None):
|
|
super().__init__(win_id=win_id,
|
|
mode_manager=mode_manager,
|
|
private=private,
|
|
parent=parent)
|
|
widget = webview.WebEngineView(tabdata=self.data, win_id=win_id,
|
|
private=private)
|
|
self.history = WebEngineHistory(tab=self)
|
|
self.scroller = WebEngineScroller(tab=self, parent=self)
|
|
self.caret = WebEngineCaret(mode_manager=mode_manager,
|
|
tab=self, parent=self)
|
|
self.zoom = WebEngineZoom(tab=self, parent=self)
|
|
self.search = WebEngineSearch(tab=self, parent=self)
|
|
self.printing = WebEnginePrinting(tab=self)
|
|
self.elements = WebEngineElements(tab=self)
|
|
self.action = WebEngineAction(tab=self)
|
|
self.audio = WebEngineAudio(tab=self, parent=self)
|
|
self.private_api = WebEngineTabPrivate(mode_manager=mode_manager,
|
|
tab=self)
|
|
self._permissions = _WebEnginePermissions(tab=self, parent=self)
|
|
self._scripts = _WebEngineScripts(tab=self, parent=self)
|
|
# We're assigning settings in _set_widget
|
|
self.settings = webenginesettings.WebEngineSettings(settings=None)
|
|
self._set_widget(widget)
|
|
self._connect_signals()
|
|
self.backend = usertypes.Backend.QtWebEngine
|
|
self._child_event_filter = None
|
|
self._saved_zoom = None
|
|
self._reload_url = None # type: typing.Optional[QUrl]
|
|
self._scripts.init()
|
|
|
|
def _set_widget(self, widget):
|
|
# pylint: disable=protected-access
|
|
super()._set_widget(widget)
|
|
self._permissions._widget = widget
|
|
self._scripts._widget = widget
|
|
|
|
def _install_event_filter(self):
|
|
fp = self._widget.focusProxy()
|
|
if fp is not None:
|
|
fp.installEventFilter(self._tab_event_filter)
|
|
|
|
self._child_event_filter = eventfilter.ChildEventFilter(
|
|
eventfilter=self._tab_event_filter,
|
|
widget=self._widget,
|
|
parent=self)
|
|
self._widget.installEventFilter(self._child_event_filter)
|
|
|
|
if qtutils.version_check('5.11', compiled=False, exact=True):
|
|
focus_event_filter = eventfilter.FocusWorkaroundEventFilter(
|
|
win_id=self.win_id,
|
|
widget=self._widget,
|
|
parent=self)
|
|
self._widget.installEventFilter(focus_event_filter)
|
|
|
|
@pyqtSlot()
|
|
def _restore_zoom(self):
|
|
if sip.isdeleted(self._widget):
|
|
# https://github.com/qutebrowser/qutebrowser/issues/3498
|
|
return
|
|
if self._saved_zoom is None:
|
|
return
|
|
self.zoom.set_factor(self._saved_zoom)
|
|
self._saved_zoom = None
|
|
|
|
def load_url(self, url, *, emit_before_load_started=True):
|
|
"""Load the given URL in this tab.
|
|
|
|
Arguments:
|
|
url: The QUrl to load.
|
|
emit_before_load_started: If set to False, before_load_started is
|
|
not emitted.
|
|
"""
|
|
if sip.isdeleted(self._widget):
|
|
# https://github.com/qutebrowser/qutebrowser/issues/3896
|
|
return
|
|
self._saved_zoom = self.zoom.factor()
|
|
self._load_url_prepare(
|
|
url, emit_before_load_started=emit_before_load_started)
|
|
self._widget.load(url)
|
|
|
|
def url(self, *, requested=False):
|
|
page = self._widget.page()
|
|
if requested:
|
|
return page.requestedUrl()
|
|
else:
|
|
return page.url()
|
|
|
|
def dump_async(self, callback, *, plain=False):
|
|
if plain:
|
|
self._widget.page().toPlainText(callback)
|
|
else:
|
|
self._widget.page().toHtml(callback)
|
|
|
|
def run_js_async(self, code, callback=None, *, world=None):
|
|
world_id_type = typing.Union[QWebEngineScript.ScriptWorldId, int]
|
|
if world is None:
|
|
world_id = QWebEngineScript.ApplicationWorld # type: world_id_type
|
|
elif isinstance(world, int):
|
|
world_id = world
|
|
if not 0 <= world_id <= qtutils.MAX_WORLD_ID:
|
|
raise browsertab.WebTabError(
|
|
"World ID should be between 0 and {}"
|
|
.format(qtutils.MAX_WORLD_ID))
|
|
else:
|
|
world_id = _JS_WORLD_MAP[world]
|
|
|
|
if callback is None:
|
|
self._widget.page().runJavaScript(code, world_id)
|
|
else:
|
|
self._widget.page().runJavaScript(code, world_id, callback)
|
|
|
|
def reload(self, *, force=False):
|
|
if force:
|
|
action = QWebEnginePage.ReloadAndBypassCache
|
|
else:
|
|
action = QWebEnginePage.Reload
|
|
self._widget.triggerPageAction(action)
|
|
|
|
def stop(self):
|
|
self._widget.stop()
|
|
|
|
def title(self):
|
|
return self._widget.title()
|
|
|
|
def icon(self):
|
|
return self._widget.icon()
|
|
|
|
def set_html(self, html, base_url=QUrl()):
|
|
# FIXME:qtwebengine
|
|
# check this and raise an exception if too big:
|
|
# Warning: The content will be percent encoded before being sent to the
|
|
# renderer via IPC. This may increase its size. The maximum size of the
|
|
# percent encoded content is 2 megabytes minus 30 bytes.
|
|
self._widget.setHtml(html, base_url)
|
|
|
|
def _show_error_page(self, url, error):
|
|
"""Show an error page in the tab."""
|
|
log.misc.debug("Showing error page for {}".format(error))
|
|
url_string = url.toDisplayString()
|
|
error_page = jinja.render(
|
|
'error.html',
|
|
title="Error loading page: {}".format(url_string),
|
|
url=url_string, error=error)
|
|
self.set_html(error_page)
|
|
|
|
@pyqtSlot()
|
|
def _on_history_trigger(self):
|
|
try:
|
|
self._widget.page()
|
|
except RuntimeError:
|
|
# Looks like this slot can be triggered on destroyed tabs:
|
|
# https://crashes.qutebrowser.org/view/3abffbed (Qt 5.9.1)
|
|
# wrapped C/C++ object of type WebEngineView has been deleted
|
|
log.misc.debug("Ignoring history trigger for destroyed tab")
|
|
return
|
|
|
|
url = self.url()
|
|
requested_url = self.url(requested=True)
|
|
|
|
# Don't save the title if it's generated from the URL
|
|
title = self.title()
|
|
title_url = QUrl(url)
|
|
title_url.setScheme('')
|
|
title_url_str = title_url.toDisplayString(
|
|
QUrl.RemoveScheme) # type: ignore[arg-type]
|
|
if title == title_url_str.strip('/'):
|
|
title = ""
|
|
|
|
# Don't add history entry if the URL is invalid anyways
|
|
if not url.isValid():
|
|
log.misc.debug("Ignoring invalid URL being added to history")
|
|
return
|
|
|
|
self.history_item_triggered.emit(url, requested_url, title)
|
|
|
|
@pyqtSlot(QUrl, 'QAuthenticator*', 'QString')
|
|
def _on_proxy_authentication_required(self, url, authenticator,
|
|
proxy_host):
|
|
"""Called when a proxy needs authentication."""
|
|
msg = "<b>{}</b> requires a username and password.".format(
|
|
html_utils.escape(proxy_host))
|
|
urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
|
|
answer = message.ask(
|
|
title="Proxy authentication required", text=msg,
|
|
mode=usertypes.PromptMode.user_pwd,
|
|
abort_on=[self.abort_questions], url=urlstr)
|
|
|
|
if answer is not None:
|
|
authenticator.setUser(answer.user)
|
|
authenticator.setPassword(answer.password)
|
|
else:
|
|
try:
|
|
sip.assign( # type: ignore[attr-defined]
|
|
authenticator,
|
|
QAuthenticator())
|
|
except AttributeError:
|
|
self._show_error_page(url, "Proxy authentication required")
|
|
|
|
@pyqtSlot(QUrl, 'QAuthenticator*')
|
|
def _on_authentication_required(self, url, authenticator):
|
|
log.network.debug("Authentication requested for {}, netrc_used {}"
|
|
.format(url.toDisplayString(), self.data.netrc_used))
|
|
|
|
netrc_success = False
|
|
if not self.data.netrc_used:
|
|
self.data.netrc_used = True
|
|
netrc_success = shared.netrc_authentication(url, authenticator)
|
|
|
|
if not netrc_success:
|
|
log.network.debug("Asking for credentials")
|
|
answer = shared.authentication_required(
|
|
url, authenticator, abort_on=[self.abort_questions])
|
|
if not netrc_success and answer is None:
|
|
log.network.debug("Aborting auth")
|
|
try:
|
|
sip.assign( # type: ignore[attr-defined]
|
|
authenticator, QAuthenticator())
|
|
except AttributeError:
|
|
# WORKAROUND for
|
|
# https://www.riverbankcomputing.com/pipermail/pyqt/2016-December/038400.html
|
|
self._show_error_page(url, "Authentication required")
|
|
|
|
@pyqtSlot()
|
|
def _on_load_started(self):
|
|
"""Clear search when a new load is started if needed."""
|
|
# WORKAROUND for
|
|
# https://bugreports.qt.io/browse/QTBUG-61506
|
|
# (seems to be back in later Qt versions as well)
|
|
self.search.clear()
|
|
super()._on_load_started()
|
|
self.data.netrc_used = False
|
|
|
|
@pyqtSlot(QWebEnginePage.RenderProcessTerminationStatus, int)
|
|
def _on_render_process_terminated(self, status, exitcode):
|
|
"""Show an error when the renderer process terminated."""
|
|
if (status == QWebEnginePage.AbnormalTerminationStatus and
|
|
exitcode == 256):
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-58697
|
|
status = QWebEnginePage.CrashedTerminationStatus
|
|
|
|
status_map = {
|
|
QWebEnginePage.NormalTerminationStatus:
|
|
browsertab.TerminationStatus.normal,
|
|
QWebEnginePage.AbnormalTerminationStatus:
|
|
browsertab.TerminationStatus.abnormal,
|
|
QWebEnginePage.CrashedTerminationStatus:
|
|
browsertab.TerminationStatus.crashed,
|
|
QWebEnginePage.KilledTerminationStatus:
|
|
browsertab.TerminationStatus.killed,
|
|
-1:
|
|
browsertab.TerminationStatus.unknown,
|
|
}
|
|
self.renderer_process_terminated.emit(status_map[status], exitcode)
|
|
|
|
def _error_page_workaround(self, js_enabled, html):
|
|
"""Check if we're displaying a Chromium error page.
|
|
|
|
This gets called if we got a loadFinished(False), so we can display at
|
|
least some error page in situations where Chromium's can't be
|
|
displayed.
|
|
|
|
WORKAROUND for https://bugreports.qt.io/browse/QTBUG-66643
|
|
WORKAROUND for https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=882805
|
|
|
|
Needs to check the page content as a WORKAROUND for
|
|
https://bugreports.qt.io/browse/QTBUG-66661
|
|
"""
|
|
match = re.search(r'"errorCode":"([^"]*)"', html)
|
|
if match is None:
|
|
return
|
|
|
|
error = match.group(1)
|
|
log.webview.error("Load error: {}".format(error))
|
|
|
|
missing_jst = 'jstProcess(' in html and 'jstProcess=' not in html
|
|
if js_enabled and not missing_jst:
|
|
return
|
|
|
|
self._show_error_page(self.url(), error=error)
|
|
|
|
@pyqtSlot(int)
|
|
def _on_load_progress(self, perc: int) -> None:
|
|
"""QtWebEngine-specific loadProgress workarounds.
|
|
|
|
WORKAROUND for https://bugreports.qt.io/browse/QTBUG-65223
|
|
"""
|
|
super()._on_load_progress(perc)
|
|
if (perc == 100 and
|
|
qtutils.version_check('5.10', compiled=False) and
|
|
self.load_status() != usertypes.LoadStatus.error):
|
|
self._update_load_status(ok=True)
|
|
|
|
@pyqtSlot(bool)
|
|
def _on_load_finished(self, ok: bool) -> None:
|
|
"""QtWebEngine-specific loadFinished workarounds."""
|
|
super()._on_load_finished(ok)
|
|
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-65223
|
|
if qtutils.version_check('5.10', compiled=False):
|
|
if not ok:
|
|
self._update_load_status(ok)
|
|
else:
|
|
self._update_load_status(ok)
|
|
|
|
if not ok:
|
|
self.dump_async(functools.partial(
|
|
self._error_page_workaround,
|
|
self.settings.test_attribute('content.javascript.enabled')))
|
|
|
|
if ok and self._reload_url is not None:
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-66656
|
|
log.config.debug(
|
|
"Loading {} again because of config change".format(
|
|
self._reload_url.toDisplayString()))
|
|
QTimer.singleShot(100, functools.partial(
|
|
self.load_url, self._reload_url,
|
|
emit_before_load_started=False))
|
|
self._reload_url = None
|
|
|
|
@pyqtSlot(certificateerror.CertificateErrorWrapper)
|
|
def _on_ssl_errors(self, error):
|
|
url = error.url()
|
|
self._insecure_hosts.add(url.host())
|
|
|
|
log.network.debug("Certificate error: {}".format(error))
|
|
|
|
if error.is_overridable():
|
|
error.ignore = shared.ignore_certificate_errors(
|
|
url, [error], abort_on=[self.abort_questions])
|
|
else:
|
|
log.network.error("Non-overridable certificate error: "
|
|
"{}".format(error))
|
|
|
|
log.network.debug("ignore {}, URL {}, requested {}".format(
|
|
error.ignore, url, self.url(requested=True)))
|
|
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-56207
|
|
show_cert_error = (
|
|
not qtutils.version_check('5.9') and
|
|
not error.ignore
|
|
)
|
|
# WORKAROUND for https://codereview.qt-project.org/c/qt/qtwebengine/+/270556
|
|
show_non_overr_cert_error = (
|
|
not error.is_overridable() and (
|
|
# Affected Qt versions:
|
|
# 5.13 before 5.13.2
|
|
# 5.12 before 5.12.6
|
|
# < 5.12
|
|
(qtutils.version_check('5.13') and
|
|
not qtutils.version_check('5.13.2')) or
|
|
(qtutils.version_check('5.12') and
|
|
not qtutils.version_check('5.12.6')) or
|
|
not qtutils.version_check('5.12')
|
|
)
|
|
)
|
|
|
|
# We can't really know when to show an error page, as the error might
|
|
# have happened when loading some resource.
|
|
# However, self.url() is not available yet and the requested URL
|
|
# might not match the URL we get from the error - so we just apply a
|
|
# heuristic here.
|
|
if ((show_cert_error or show_non_overr_cert_error) and
|
|
url.matches(self.data.last_navigation.url, QUrl.RemoveScheme)):
|
|
self._show_error_page(url, str(error))
|
|
|
|
@pyqtSlot(QUrl)
|
|
def _on_before_load_started(self, url):
|
|
"""If we know we're going to visit a URL soon, change the settings.
|
|
|
|
This is a WORKAROUND for https://bugreports.qt.io/browse/QTBUG-66656
|
|
"""
|
|
super()._on_before_load_started(url)
|
|
if not qtutils.version_check('5.11.1', compiled=False):
|
|
self.settings.update_for_url(url)
|
|
|
|
@pyqtSlot()
|
|
def _on_print_requested(self):
|
|
"""Slot for window.print() in JS."""
|
|
try:
|
|
self.printing.show_dialog()
|
|
except browsertab.WebTabError as e:
|
|
message.error(str(e))
|
|
|
|
@pyqtSlot(QUrl)
|
|
def _on_url_changed(self, url: QUrl) -> None:
|
|
"""Update settings for the current URL.
|
|
|
|
Normally this is done below in _on_navigation_request, but we also need
|
|
to do it here as WORKAROUND for
|
|
https://bugreports.qt.io/browse/QTBUG-77137
|
|
|
|
Since update_for_url() is idempotent, it doesn't matter much if we end
|
|
up doing it twice.
|
|
"""
|
|
super()._on_url_changed(url)
|
|
if url.isValid() and qtutils.version_check('5.13'):
|
|
self.settings.update_for_url(url)
|
|
|
|
@pyqtSlot(usertypes.NavigationRequest)
|
|
def _on_navigation_request(self, navigation):
|
|
super()._on_navigation_request(navigation)
|
|
|
|
if navigation.url == QUrl('qute://print'):
|
|
self._on_print_requested()
|
|
navigation.accepted = False
|
|
|
|
if not navigation.accepted or not navigation.is_main_frame:
|
|
return
|
|
|
|
settings_needing_reload = {
|
|
'content.plugins',
|
|
'content.javascript.enabled',
|
|
'content.javascript.can_access_clipboard',
|
|
'content.print_element_backgrounds',
|
|
'input.spatial_navigation',
|
|
}
|
|
assert settings_needing_reload.issubset(configdata.DATA)
|
|
|
|
changed = self.settings.update_for_url(navigation.url)
|
|
reload_needed = bool(changed & settings_needing_reload)
|
|
|
|
# On Qt < 5.11, we don't don't need a reload when type == link_clicked.
|
|
# On Qt 5.11.0, we always need a reload.
|
|
# On Qt > 5.11.0, we never need a reload:
|
|
# https://codereview.qt-project.org/#/c/229525/1
|
|
# WORKAROUND for https://bugreports.qt.io/browse/QTBUG-66656
|
|
if qtutils.version_check('5.11.1', compiled=False):
|
|
reload_needed = False
|
|
elif not qtutils.version_check('5.11.0', exact=True, compiled=False):
|
|
if navigation.navigation_type == navigation.Type.link_clicked:
|
|
reload_needed = False
|
|
|
|
if reload_needed:
|
|
self._reload_url = navigation.url
|
|
|
|
def _on_select_client_certificate(self, selection):
|
|
"""Handle client certificates.
|
|
|
|
Currently, we simply pick the first available certificate and show an
|
|
additional note if there are multiple matches.
|
|
"""
|
|
certificate = selection.certificates()[0]
|
|
text = ('<b>Subject:</b> {subj}<br/>'
|
|
'<b>Issuer:</b> {issuer}<br/>'
|
|
'<b>Serial:</b> {serial}'.format(
|
|
subj=html_utils.escape(certificate.subjectDisplayName()),
|
|
issuer=html_utils.escape(certificate.issuerDisplayName()),
|
|
serial=bytes(certificate.serialNumber()).decode('ascii')))
|
|
if len(selection.certificates()) > 1:
|
|
text += ('<br/><br/><b>Note:</b> Multiple matching certificates '
|
|
'were found, but certificate selection is not '
|
|
'implemented yet!')
|
|
urlstr = selection.host().host()
|
|
|
|
present = message.ask(
|
|
title='Present client certificate to {}?'.format(urlstr),
|
|
text=text,
|
|
mode=usertypes.PromptMode.yesno,
|
|
abort_on=[self.abort_questions],
|
|
url=urlstr)
|
|
|
|
if present:
|
|
selection.select(certificate)
|
|
else:
|
|
selection.selectNone()
|
|
|
|
def _connect_signals(self):
|
|
view = self._widget
|
|
page = view.page()
|
|
|
|
page.windowCloseRequested.connect(self.window_close_requested)
|
|
page.linkHovered.connect(self.link_hovered)
|
|
page.loadProgress.connect(self._on_load_progress)
|
|
page.loadStarted.connect(self._on_load_started)
|
|
page.certificate_error.connect(self._on_ssl_errors)
|
|
page.authenticationRequired.connect(self._on_authentication_required)
|
|
page.proxyAuthenticationRequired.connect(
|
|
self._on_proxy_authentication_required)
|
|
page.contentsSizeChanged.connect(self.contents_size_changed)
|
|
page.navigation_request.connect(self._on_navigation_request)
|
|
|
|
if qtutils.version_check('5.12'):
|
|
page.printRequested.connect(self._on_print_requested)
|
|
|
|
try:
|
|
# pylint: disable=unused-import
|
|
from PyQt5.QtWebEngineWidgets import (
|
|
QWebEngineClientCertificateSelection)
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
page.selectClientCertificate.connect(
|
|
self._on_select_client_certificate)
|
|
|
|
view.titleChanged.connect(self.title_changed)
|
|
view.urlChanged.connect(self._on_url_changed)
|
|
view.renderProcessTerminated.connect(
|
|
self._on_render_process_terminated)
|
|
view.iconChanged.connect(self.icon_changed)
|
|
|
|
page.loadFinished.connect(self._on_history_trigger)
|
|
page.loadFinished.connect(self._restore_zoom)
|
|
page.loadFinished.connect(self._on_load_finished)
|
|
|
|
self.before_load_started.connect(self._on_before_load_started)
|
|
self.shutting_down.connect(
|
|
self.abort_questions) # type: ignore[arg-type]
|
|
self.load_started.connect(
|
|
self.abort_questions) # type: ignore[arg-type]
|
|
|
|
# pylint: disable=protected-access
|
|
self.audio._connect_signals()
|
|
self.search.connect_signals()
|
|
self._permissions.connect_signals()
|
|
self._scripts.connect_signals()
|