def follow_selected(self, *, tab=False):
if not self.has_selection():
return
if QWebSettings.globalSettings().testAttribute(
QWebSettings.JavascriptEnabled):
if tab:
self._tab.data.override_target = usertypes.ClickTarget.tab
self._tab.run_js_async(
'window.getSelection().anchorNode.parentNode.click()')
else:
selection = self.selection(html=True)
try:
selected_element = xml.etree.ElementTree.fromstring(
'<html>{}</html>'.format(selection)).find('a')
except xml.etree.ElementTree.ParseError:
raise browsertab.WebTabError('Could not parse selected '
'element!')
if selected_element is not None:
try:
url = selected_element.attrib['href']
except KeyError:
raise browsertab.WebTabError('Anchor element without '
'href!')
url = self._tab.url().resolved(QUrl(url))
if tab:
self._tab.new_tab_requested.emit(url)
else:
self._tab.openurl(url)
def serialize(self):
# WORKAROUND (remove this when we bump the requirements to 5.9)
# https://bugreports.qt.io/browse/QTBUG-59599
if self._history.count() == 0:
raise browsertab.WebTabError("Can't serialize page without "
"history!")
# WORKAROUND (FIXME: remove this when we bump the requirements to 5.9?)
# https://github.com/qutebrowser/qutebrowser/issues/2289
scheme = self._history.currentItem().url().scheme()
if scheme in ['view-source', 'chrome']:
raise browsertab.WebTabError("Can't serialize special URL!")
return qtutils.serialize(self._history)
def init():
"""Initialize QtWebEngine-specific modules."""
# For some reason we need to keep a reference, otherwise the scheme handler
# won't work...
# https://www.riverbankcomputing.com/pipermail/pyqt/2016-September/038075.html
global _qute_scheme_handler
app = QApplication.instance()
software_rendering = os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1'
if version.opengl_vendor() == 'nouveau' and not software_rendering:
# FIXME:qtwebengine display something more sophisticated here
raise browsertab.WebTabError(
"QtWebEngine is not supported with Nouveau graphics (unless "
"LIBGL_ALWAYS_SOFTWARE is set as environment variable).")
log.init.debug("Initializing qute://* handler...")
_qute_scheme_handler = webenginequtescheme.QuteSchemeHandler(parent=app)
_qute_scheme_handler.install(webenginesettings.default_profile)
_qute_scheme_handler.install(webenginesettings.private_profile)
log.init.debug("Initializing request interceptor...")
host_blocker = objreg.get('host-blocker')
req_interceptor = interceptor.RequestInterceptor(host_blocker, parent=app)
req_interceptor.install(webenginesettings.default_profile)
req_interceptor.install(webenginesettings.private_profile)
log.init.debug("Initializing QtWebEngine downloads...")
download_manager = webenginedownloads.DownloadManager(parent=app)
download_manager.install(webenginesettings.default_profile)
download_manager.install(webenginesettings.private_profile)
objreg.register('webengine-download-manager', download_manager)
def serialize(self):
# WORKAROUND for https://github.com/qutebrowser/qutebrowser/issues/2289
# FIXME:qtwebengine can we get rid of this with Qt 5.8.1?
scheme = self._history.currentItem().url().scheme()
if scheme in ['view-source', 'chrome']:
raise browsertab.WebTabError("Can't serialize special URL!")
return qtutils.serialize(self._history)
def serialize(self):
if not qtutils.version_check('5.9'):
# 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 follow_selected(self, *, tab=False):
if QWebSettings.globalSettings().testAttribute(
QWebSettings.JavascriptEnabled):
if tab:
self._tab.data.override_target = usertypes.ClickTarget.tab
self._tab.run_js_async("""
const aElm = document.activeElement;
if (window.getSelection().anchorNode) {
window.getSelection().anchorNode.parentNode.click();
} else if (aElm && aElm !== document.body) {
aElm.click();
}
""")
else:
selection = self._widget.selectedHtml()
if not selection:
# Getting here may mean we crashed, but we can't do anything
# about that until this commit is released:
# https://github.com/annulen/webkit/commit/0e75f3272d149bc64899c161f150eb341a2417af
# TODO find a way to check if something is focused
self._follow_enter(tab)
return
try:
selected_element = xml.etree.ElementTree.fromstring(
'<html>{}</html>'.format(selection)).find('a')
except xml.etree.ElementTree.ParseError:
raise browsertab.WebTabError('Could not parse selected '
'element!')
if selected_element is not None:
try:
url = selected_element.attrib['href']
except KeyError:
raise browsertab.WebTabError('Anchor element without '
'href!')
url = self._tab.url().resolved(QUrl(url))
if tab:
self._tab.new_tab_requested.emit(url)
else:
self._tab.openurl(url)
def find_css(self, selector, callback, *, only_visible=False):
mainframe = self._widget.page().mainFrame()
if mainframe is None:
raise browsertab.WebTabError("No frame focused!")
elems = []
frames = webkitelem.get_child_frames(mainframe)
for f in frames:
for elem in f.findAllElements(selector):
elems.append(webkitelem.WebKitElement(elem, tab=self._tab))
if only_visible:
elems = [e for e in elems if e.is_visible(mainframe)]
callback(elems)
def find_css(self, selector, callback, error_cb, *, only_visible=False):
utils.unused(error_cb)
mainframe = self._widget.page().mainFrame()
if mainframe is None:
raise browsertab.WebTabError("No frame focused!")
elems = []
frames = webkitelem.get_child_frames(mainframe)
for f in frames:
for elem in f.findAllElements(selector):
elems.append(webkitelem.WebKitElement(elem, tab=self._tab))
if only_visible:
# pylint: disable=protected-access
elems = [e for e in elems if e._is_visible(mainframe)]
# pylint: enable=protected-access
callback(elems)
def set_muted(self, muted: bool):
raise browsertab.WebTabError('Muting is not supported on QtWebKit!')
def check_preview_support(self):
raise browsertab.WebTabError(
"Print previews are unsupported with QtWebEngine")
def check_printer_support(self):
if not hasattr(self._widget.page(), 'print'):
raise browsertab.WebTabError(
"Printing is unsupported with QtWebEngine on Qt < 5.8")
def check_printer_support(self):
raise browsertab.WebTabError(
"Printing is unsupported with QtWebEngine")
def check_pdf_support(self):
if not hasattr(self._widget.page(), 'printToPdf'):
raise browsertab.WebTabError(
"Printing to PDF is unsupported with QtWebEngine on Qt < 5.7")
def set_muted(self, muted: bool, override: bool = False) -> None:
raise browsertab.WebTabError('Muting is not supported on QtWebKit!')
def _do_check(self):
if not qtutils.check_print_compat():
# WORKAROUND (remove this when we bump the requirements to 5.3.0)
raise browsertab.WebTabError(
"Printing on Qt < 5.3.0 on Windows is broken, please upgrade!")
