qutebrowser/qutebrowser/browser/webengine/webenginesettings.py
2017-05-15 11:07:43 +02:00

320 lines
11 KiB
Python

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2016-2017 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/>.
"""Bridge from QWebEngineSettings to our own settings.
Module attributes:
ATTRIBUTES: A mapping from internal setting names to QWebEngineSetting enum
constants.
"""
import os
import logging
# pylint: disable=no-name-in-module,import-error,useless-suppression
from PyQt5.QtWebEngineWidgets import (QWebEngineSettings, QWebEngineProfile,
QWebEngineScript)
# pylint: enable=no-name-in-module,import-error,useless-suppression
from qutebrowser.browser import shared
from qutebrowser.config import config, websettings
from qutebrowser.utils import (objreg, utils, standarddir, javascript, log,
qtutils)
# The default QWebEngineProfile
default_profile = None
# The QWebEngineProfile used for private (off-the-record) windows
private_profile = None
class Attribute(websettings.Attribute):
"""A setting set via QWebEngineSettings::setAttribute."""
GLOBAL_SETTINGS = QWebEngineSettings.globalSettings
ENUM_BASE = QWebEngineSettings
class Setter(websettings.Setter):
"""A setting set via QWebEngineSettings getter/setter methods."""
GLOBAL_SETTINGS = QWebEngineSettings.globalSettings
class NullStringSetter(websettings.NullStringSetter):
"""A setter for settings requiring a null QString as default."""
GLOBAL_SETTINGS = QWebEngineSettings.globalSettings
class StaticSetter(websettings.StaticSetter):
"""A setting set via static QWebEngineSettings getter/setter methods."""
GLOBAL_SETTINGS = QWebEngineSettings.globalSettings
class DefaultProfileSetter(websettings.Base):
"""A setting set on the QWebEngineProfile."""
def __init__(self, getter, setter):
super().__init__()
self._getter = getter
self._setter = setter
def get(self, settings=None):
utils.unused(settings)
getter = getattr(default_profile, self._getter)
return getter()
def _set(self, value, settings=None):
utils.unused(settings)
setter = getattr(default_profile, self._setter)
setter(value)
class PersistentCookiePolicy(DefaultProfileSetter):
"""The cookies -> store setting is different from other settings."""
def __init__(self):
super().__init__(getter='persistentCookiesPolicy',
setter='setPersistentCookiesPolicy')
def get(self, settings=None):
utils.unused(settings)
return config.get('content', 'cookies-store')
def _set(self, value, settings=None):
utils.unused(settings)
setter = getattr(QWebEngineProfile.defaultProfile(), self._setter)
setter(
QWebEngineProfile.AllowPersistentCookies if value else
QWebEngineProfile.NoPersistentCookies
)
def _init_stylesheet(profile):
"""Initialize custom stylesheets.
Mostly inspired by QupZilla:
https://github.com/QupZilla/qupzilla/blob/v2.0/src/lib/app/mainapplication.cpp#L1063-L1101
https://github.com/QupZilla/qupzilla/blob/v2.0/src/lib/tools/scripts.cpp#L119-L132
FIXME:qtwebengine Use QWebEngineStyleSheet once that's available
https://codereview.qt-project.org/#/c/148671/
"""
old_script = profile.scripts().findScript('_qute_stylesheet')
if not old_script.isNull():
profile.scripts().remove(old_script)
css = shared.get_user_stylesheet()
source = """
(function() {{
var css = document.createElement('style');
css.setAttribute('type', 'text/css');
css.appendChild(document.createTextNode('{}'));
document.getElementsByTagName('head')[0].appendChild(css);
}})()
""".format(javascript.string_escape(css))
script = QWebEngineScript()
script.setName('_qute_stylesheet')
script.setInjectionPoint(QWebEngineScript.DocumentReady)
script.setWorldId(QWebEngineScript.ApplicationWorld)
script.setRunsOnSubFrames(True)
script.setSourceCode(source)
profile.scripts().insert(script)
def update_settings(section, option):
"""Update global settings when qwebsettings changed."""
websettings.update_mappings(MAPPINGS, section, option)
if section == 'ui' and option in ['hide-scrollbar', 'user-stylesheet']:
_init_stylesheet(default_profile)
_init_stylesheet(private_profile)
def _init_profiles():
"""Init the two used QWebEngineProfiles."""
global default_profile, private_profile
default_profile = QWebEngineProfile.defaultProfile()
default_profile.setCachePath(
os.path.join(standarddir.cache(), 'webengine'))
default_profile.setPersistentStoragePath(
os.path.join(standarddir.data(), 'webengine'))
_init_stylesheet(default_profile)
private_profile = QWebEngineProfile()
assert private_profile.isOffTheRecord()
_init_stylesheet(private_profile)
def init(args):
"""Initialize the global QWebSettings."""
if args.enable_webengine_inspector:
os.environ['QTWEBENGINE_REMOTE_DEBUGGING'] = str(utils.random_port())
# Workaround for a black screen with some setups
# https://github.com/spyder-ide/spyder/issues/3226
if not os.environ.get('QUTE_NO_OPENGL_WORKAROUND'):
# Hide "No OpenGL_accelerate module loaded: ..." message
logging.getLogger('OpenGL.acceleratesupport').propagate = False
try:
from OpenGL import GL # pylint: disable=unused-variable
except ImportError:
pass
else:
log.misc.debug("Imported PyOpenGL as workaround")
_init_profiles()
# We need to do this here as a WORKAROUND for
# https://bugreports.qt.io/browse/QTBUG-58650
if not qtutils.version_check('5.9'):
PersistentCookiePolicy().set(config.get('content', 'cookies-store'))
Attribute(QWebEngineSettings.FullScreenSupportEnabled).set(True)
websettings.init_mappings(MAPPINGS)
objreg.get('config').changed.connect(update_settings)
def shutdown():
# FIXME:qtwebengine do we need to do something for a clean shutdown here?
pass
# Missing QtWebEngine attributes:
# - ScreenCaptureEnabled
# - Accelerated2dCanvasEnabled
# - AutoLoadIconsForPage
# - TouchIconsEnabled
# - FocusOnNavigationEnabled (5.8)
# - AllowRunningInsecureContent (5.8)
#
# Missing QtWebEngine fonts:
# - FantasyFont
# - PictographFont
MAPPINGS = {
'content': {
'allow-images':
Attribute(QWebEngineSettings.AutoLoadImages),
'allow-javascript':
Attribute(QWebEngineSettings.JavascriptEnabled),
'javascript-can-open-windows-automatically':
Attribute(QWebEngineSettings.JavascriptCanOpenWindows),
'javascript-can-access-clipboard':
Attribute(QWebEngineSettings.JavascriptCanAccessClipboard),
'allow-plugins':
Attribute(QWebEngineSettings.PluginsEnabled),
'hyperlink-auditing':
Attribute(QWebEngineSettings.HyperlinkAuditingEnabled),
'local-content-can-access-remote-urls':
Attribute(QWebEngineSettings.LocalContentCanAccessRemoteUrls),
'local-content-can-access-file-urls':
Attribute(QWebEngineSettings.LocalContentCanAccessFileUrls),
'webgl':
Attribute(QWebEngineSettings.WebGLEnabled),
},
'input': {
'spatial-navigation':
Attribute(QWebEngineSettings.SpatialNavigationEnabled),
'links-included-in-focus-chain':
Attribute(QWebEngineSettings.LinksIncludedInFocusChain),
},
'fonts': {
'web-family-standard':
Setter(getter=QWebEngineSettings.fontFamily,
setter=QWebEngineSettings.setFontFamily,
args=[QWebEngineSettings.StandardFont]),
'web-family-fixed':
Setter(getter=QWebEngineSettings.fontFamily,
setter=QWebEngineSettings.setFontFamily,
args=[QWebEngineSettings.FixedFont]),
'web-family-serif':
Setter(getter=QWebEngineSettings.fontFamily,
setter=QWebEngineSettings.setFontFamily,
args=[QWebEngineSettings.SerifFont]),
'web-family-sans-serif':
Setter(getter=QWebEngineSettings.fontFamily,
setter=QWebEngineSettings.setFontFamily,
args=[QWebEngineSettings.SansSerifFont]),
'web-family-cursive':
Setter(getter=QWebEngineSettings.fontFamily,
setter=QWebEngineSettings.setFontFamily,
args=[QWebEngineSettings.CursiveFont]),
'web-family-fantasy':
Setter(getter=QWebEngineSettings.fontFamily,
setter=QWebEngineSettings.setFontFamily,
args=[QWebEngineSettings.FantasyFont]),
'web-size-minimum':
Setter(getter=QWebEngineSettings.fontSize,
setter=QWebEngineSettings.setFontSize,
args=[QWebEngineSettings.MinimumFontSize]),
'web-size-minimum-logical':
Setter(getter=QWebEngineSettings.fontSize,
setter=QWebEngineSettings.setFontSize,
args=[QWebEngineSettings.MinimumLogicalFontSize]),
'web-size-default':
Setter(getter=QWebEngineSettings.fontSize,
setter=QWebEngineSettings.setFontSize,
args=[QWebEngineSettings.DefaultFontSize]),
'web-size-default-fixed':
Setter(getter=QWebEngineSettings.fontSize,
setter=QWebEngineSettings.setFontSize,
args=[QWebEngineSettings.DefaultFixedFontSize]),
},
'ui': {
'smooth-scrolling':
Attribute(QWebEngineSettings.ScrollAnimatorEnabled),
},
'storage': {
'local-storage':
Attribute(QWebEngineSettings.LocalStorageEnabled),
'cache-size':
DefaultProfileSetter(getter='httpCacheMaximumSize',
setter='setHttpCacheMaximumSize')
},
'general': {
'xss-auditing':
Attribute(QWebEngineSettings.XSSAuditingEnabled),
'default-encoding':
Setter(getter=QWebEngineSettings.defaultTextEncoding,
setter=QWebEngineSettings.setDefaultTextEncoding),
}
}
try:
MAPPINGS['general']['print-element-backgrounds'] = Attribute(
QWebEngineSettings.PrintElementBackgrounds)
except AttributeError:
# Added in Qt 5.8
pass
if qtutils.version_check('5.9'):
# https://bugreports.qt.io/browse/QTBUG-58650
MAPPINGS['content']['cookies-store'] = PersistentCookiePolicy()