Split browser.py into smaller files
This commit is contained in:
Florian Bruhin
parent
98fb1a0250
commit
9ee4e93e0a
102
qutebrowser/widgets/browserpage.py
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102
qutebrowser/widgets/browserpage.py
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@ -0,0 +1,102 @@
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# Copyright 2014 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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"""The main browser widgets."""
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import sip
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from PyQt5.QtNetwork import QNetworkReply
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from PyQt5.QtWebKitWidgets import QWebPage
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import qutebrowser.utils.url as urlutils
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from qutebrowser.network.networkmanager import NetworkManager
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from qutebrowser.utils.misc import read_file
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class BrowserPage(QWebPage):
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"""Our own QWebPage with advanced features.
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Attributes:
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_extension_handlers: Mapping of QWebPage extensions to their handlers.
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network_access_manager: The QNetworkAccessManager used.
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"""
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def __init__(self, parent=None):
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super().__init__(parent)
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self._extension_handlers = {
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QWebPage.ErrorPageExtension: self._handle_errorpage,
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}
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self.network_access_manager = NetworkManager(self)
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self.setNetworkAccessManager(self.network_access_manager)
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def _handle_errorpage(self, opt, out):
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"""Display an error page if needed.
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Loosly based on Helpviewer/HelpBrowserWV.py from eric5
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(line 260 @ 5d937eb378dd)
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Args:
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opt: The QWebPage.ErrorPageExtensionOption instance.
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out: The QWebPage.ErrorPageExtensionReturn instance to write return
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values to.
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Return:
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False if no error page should be displayed, True otherwise.
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"""
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info = sip.cast(opt, QWebPage.ErrorPageExtensionOption)
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errpage = sip.cast(out, QWebPage.ErrorPageExtensionReturn)
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errpage.baseUrl = info.url
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if (info.domain == QWebPage.QtNetwork and
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info.error == QNetworkReply.OperationCanceledError):
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return False
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urlstr = urlutils.urlstring(info.url)
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title = "Error loading page: {}".format(urlstr)
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errpage.content = read_file('html/error.html').format(
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title=title, url=urlstr, error=info.errorString, icon='')
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return True
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def supportsExtension(self, ext):
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"""Override QWebPage::supportsExtension to provide error pages.
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Args:
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ext: The extension to check for.
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Return:
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True if the extension can be handled, False otherwise.
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"""
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return ext in self._extension_handlers
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def extension(self, ext, opt, out):
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"""Override QWebPage::extension to provide error pages.
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Args:
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ext: The extension.
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opt: Extension options instance.
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out: Extension output instance.
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Return:
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Handler return value.
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"""
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try:
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handler = self._extension_handlers[ext]
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except KeyError:
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return super().extension(ext, opt, out)
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return handler(opt, out)
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238
qutebrowser/widgets/browsertab.py
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238
qutebrowser/widgets/browsertab.py
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@ -0,0 +1,238 @@
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# Copyright 2014 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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"""The main browser widgets."""
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import logging
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import functools
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from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QEvent
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from PyQt5.QtWebKit import QWebSettings
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from PyQt5.QtWebKitWidgets import QWebView, QWebPage
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import qutebrowser.utils.url as urlutils
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import qutebrowser.config.config as config
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from qutebrowser.widgets.browserpage import BrowserPage
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from qutebrowser.utils.signals import SignalCache
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from qutebrowser.utils.usertypes import NeighborList
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class BrowserTab(QWebView):
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"""One browser tab in TabbedBrowser.
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Our own subclass of a QWebView with some added bells and whistles.
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Attributes:
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page_: The QWebPage behind the view
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signal_cache: The signal cache associated with the view.
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_zoom: A NeighborList with the zoom levels.
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_scroll_pos: The old scroll position.
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_shutdown_callback: Callback to be called after shutdown.
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_open_new_tab: Whether to open a new tab for the next action.
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_shutdown_callback: The callback to call after shutting down.
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_destroyed: Dict of all items to be destroyed on shtudown.
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Signals:
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scroll_pos_changed: Scroll percentage of current tab changed.
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arg 1: x-position in %.
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arg 2: y-position in %.
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open_tab: A new tab should be opened.
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arg: The address to open
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linkHovered: QWebPages linkHovered signal exposed.
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temp_message: Show a temporary message in the statusbar.
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arg: Message to be shown.
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"""
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scroll_pos_changed = pyqtSignal(int, int)
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open_tab = pyqtSignal('QUrl')
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linkHovered = pyqtSignal(str, str, str)
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temp_message = pyqtSignal(str)
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def __init__(self, parent=None):
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super().__init__(parent)
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self._scroll_pos = (-1, -1)
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self._shutdown_callback = None
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self._open_new_tab = False
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self._destroyed = {}
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self._zoom = NeighborList(
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config.config.get('general', 'zoomlevels').split(','),
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default=config.config.get('general', 'defaultzoom'),
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mode=NeighborList.BLOCK)
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self.page_ = BrowserPage(self)
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self.setPage(self.page_)
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self.signal_cache = SignalCache(uncached=['linkHovered'])
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self.page_.setLinkDelegationPolicy(QWebPage.DelegateAllLinks)
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self.page_.linkHovered.connect(self.linkHovered)
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self.linkClicked.connect(self.on_link_clicked)
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# FIXME find some way to hide scrollbars without setScrollBarPolicy
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def openurl(self, url):
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"""Open an URL in the browser.
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Args:
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url: The URL to load, as string or QUrl.
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Return:
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Return status of self.load
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Emit:
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titleChanged and urlChanged
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"""
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u = urlutils.fuzzy_url(url)
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logging.debug('New title: {}'.format(urlutils.urlstring(u)))
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self.titleChanged.emit(urlutils.urlstring(u))
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self.urlChanged.emit(urlutils.qurl(u))
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return self.load(u)
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def zoom(self, offset):
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"""Increase/Decrease the zoom level.
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Args:
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offset: The offset in the zoom level list.
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Emit:
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temp_message: Emitted with new zoom level.
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"""
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level = self._zoom.getitem(offset)
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self.setZoomFactor(float(level) / 100)
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self.temp_message.emit("Zoom level: {}%".format(level))
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@pyqtSlot(str)
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def on_link_clicked(self, url):
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"""Handle a link.
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Called from the linkClicked signal. Checks if it should open it in a
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tab (middle-click or control) or not, and does so.
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Args:
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url: The url to handle, as string or QUrl.
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Emit:
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open_tab: Emitted if window should be opened in a new tab.
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"""
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if self._open_new_tab:
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self.open_tab.emit(url)
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else:
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self.openurl(url)
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def shutdown(self, callback=None):
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"""Shut down the tab cleanly and remove it.
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Inspired by [1].
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[1] https://github.com/integricho/path-of-a-pyqter/tree/master/qttut08
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Args:
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callback: Function to call after shutting down.
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"""
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self._shutdown_callback = callback
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try:
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# Avoid loading finished signal when stopping
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self.loadFinished.disconnect()
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except TypeError:
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logging.exception("This should never happen.")
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self.stop()
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self.close()
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self.settings().setAttribute(QWebSettings.JavascriptEnabled, False)
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self._destroyed[self.page_] = False
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self.page_.destroyed.connect(functools.partial(self._on_destroyed,
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self.page_))
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self.page_.deleteLater()
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self._destroyed[self] = False
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self.destroyed.connect(functools.partial(self._on_destroyed, self))
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self.deleteLater()
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netman = self.page_.network_access_manager
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self._destroyed[netman] = False
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netman.abort_requests()
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netman.destroyed.connect(functools.partial(self._on_destroyed, netman))
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netman.deleteLater()
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logging.debug("Tab shutdown scheduled")
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def _on_destroyed(self, sender):
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"""Called when a subsystem has been destroyed during shutdown.
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Args:
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sender: The object which called the callback.
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"""
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self._destroyed[sender] = True
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dbgout = '\n'.join(['{}: {}'.format(k.__class__.__name__, v)
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for (k, v) in self._destroyed.items()])
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logging.debug("{} has been destroyed, new status:\n{}".format(
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sender.__class__.__name__, dbgout))
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if all(self._destroyed.values()):
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if self._shutdown_callback is not None:
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logging.debug("Everything destroyed, calling callback")
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self._shutdown_callback()
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def paintEvent(self, e):
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"""Extend paintEvent to emit a signal if the scroll position changed.
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This is a bit of a hack: We listen to repaint requests here, in the
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hope a repaint will always be requested when scrolling, and if the
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scroll position actually changed, we emit a signal.
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Args:
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e: The QPaintEvent.
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Emit:
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scroll_pos_changed; If the scroll position changed.
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"""
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frame = self.page_.mainFrame()
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new_pos = (frame.scrollBarValue(Qt.Horizontal),
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frame.scrollBarValue(Qt.Vertical))
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if self._scroll_pos != new_pos:
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self._scroll_pos = new_pos
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logging.debug("Updating scroll position")
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frame = self.page_.mainFrame()
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m = (frame.scrollBarMaximum(Qt.Horizontal),
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frame.scrollBarMaximum(Qt.Vertical))
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perc = (round(100 * new_pos[0] / m[0]) if m[0] != 0 else 0,
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round(100 * new_pos[1] / m[1]) if m[1] != 0 else 0)
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self.scroll_pos_changed.emit(*perc)
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# Let superclass handle the event
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return super().paintEvent(e)
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def event(self, e):
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"""Check if a link was clicked with the middle button or Ctrl.
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Extend the superclass event().
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This also is a bit of a hack, but it seems it's the only possible way.
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Set the _open_new_tab attribute accordingly.
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Args:
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e: The arrived event.
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Return:
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The superclass event return value.
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"""
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if e.type() in [QEvent.MouseButtonPress, QEvent.MouseButtonDblClick]:
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self._open_new_tab = (e.button() == Qt.MidButton or
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e.modifiers() & Qt.ControlModifier)
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return super().event(e)
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@ -24,7 +24,7 @@ from PyQt5.QtCore import QRect, QPoint
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from PyQt5.QtWidgets import QWidget, QVBoxLayout
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from qutebrowser.widgets.statusbar import StatusBar
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from qutebrowser.widgets.browser import TabbedBrowser
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from qutebrowser.widgets.tabbedbrowser import TabbedBrowser
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from qutebrowser.widgets.completion import CompletionView
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import qutebrowser.config.config as config
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@ -15,33 +15,22 @@
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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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"""The main browser widget.
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Defines BrowserTab (our own QWebView subclass) and TabbedBrowser (a TabWidget
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containing BrowserTabs).
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"""
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"""The main tabbed browser widget."""
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import logging
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import functools
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import sip
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from PyQt5.QtWidgets import QApplication, QShortcut, QSizePolicy
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from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QEvent, QObject
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from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QObject
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from PyQt5.QtGui import QClipboard
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from PyQt5.QtPrintSupport import QPrintPreviewDialog
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from PyQt5.QtNetwork import QNetworkReply
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from PyQt5.QtWebKit import QWebSettings
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from PyQt5.QtWebKitWidgets import QWebView, QWebPage
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import qutebrowser.utils.url as urlutils
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import qutebrowser.config.config as config
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import qutebrowser.commands.utils as cmdutils
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from qutebrowser.widgets.tabbar import TabWidget
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from qutebrowser.network.networkmanager import NetworkManager
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from qutebrowser.utils.signals import SignalCache, dbg_signal
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from qutebrowser.utils.misc import read_file
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from qutebrowser.utils.usertypes import NeighborList
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from qutebrowser.widgets.browsertab import BrowserTab
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from qutebrowser.utils.signals import dbg_signal
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class TabbedBrowser(TabWidget):
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@ -718,286 +707,3 @@ class CurCommandDispatcher(QObject):
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"""
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tab = self.tabs.currentWidget()
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tab.zoom(-count)
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class BrowserTab(QWebView):
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"""One browser tab in TabbedBrowser.
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Our own subclass of a QWebView with some added bells and whistles.
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|
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Attributes:
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page_: The QWebPage behind the view
|
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signal_cache: The signal cache associated with the view.
|
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_zoom: A NeighborList with the zoom levels.
|
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_scroll_pos: The old scroll position.
|
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_shutdown_callback: Callback to be called after shutdown.
|
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_open_new_tab: Whether to open a new tab for the next action.
|
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_shutdown_callback: The callback to call after shutting down.
|
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_destroyed: Dict of all items to be destroyed on shtudown.
|
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Signals:
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scroll_pos_changed: Scroll percentage of current tab changed.
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arg 1: x-position in %.
|
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arg 2: y-position in %.
|
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open_tab: A new tab should be opened.
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arg: The address to open
|
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linkHovered: QWebPages linkHovered signal exposed.
|
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temp_message: Show a temporary message in the statusbar.
|
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arg: Message to be shown.
|
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"""
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scroll_pos_changed = pyqtSignal(int, int)
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open_tab = pyqtSignal('QUrl')
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linkHovered = pyqtSignal(str, str, str)
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temp_message = pyqtSignal(str)
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def __init__(self, parent=None):
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super().__init__(parent)
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self._scroll_pos = (-1, -1)
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self._shutdown_callback = None
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self._open_new_tab = False
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self._destroyed = {}
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self._zoom = NeighborList(
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config.config.get('general', 'zoomlevels').split(','),
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default=config.config.get('general', 'defaultzoom'),
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mode=NeighborList.BLOCK)
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self.page_ = BrowserPage(self)
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self.setPage(self.page_)
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self.signal_cache = SignalCache(uncached=['linkHovered'])
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self.page_.setLinkDelegationPolicy(QWebPage.DelegateAllLinks)
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self.page_.linkHovered.connect(self.linkHovered)
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self.linkClicked.connect(self.on_link_clicked)
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# FIXME find some way to hide scrollbars without setScrollBarPolicy
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def openurl(self, url):
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"""Open an URL in the browser.
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Args:
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url: The URL to load, as string or QUrl.
|
||||
|
||||
Return:
|
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Return status of self.load
|
||||
|
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Emit:
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titleChanged and urlChanged
|
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"""
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u = urlutils.fuzzy_url(url)
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logging.debug('New title: {}'.format(urlutils.urlstring(u)))
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self.titleChanged.emit(urlutils.urlstring(u))
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self.urlChanged.emit(urlutils.qurl(u))
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return self.load(u)
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def zoom(self, offset):
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"""Increase/Decrease the zoom level.
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||||
|
||||
Args:
|
||||
offset: The offset in the zoom level list.
|
||||
|
||||
Emit:
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||||
temp_message: Emitted with new zoom level.
|
||||
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"""
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level = self._zoom.getitem(offset)
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self.setZoomFactor(float(level) / 100)
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self.temp_message.emit("Zoom level: {}%".format(level))
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@pyqtSlot(str)
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def on_link_clicked(self, url):
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"""Handle a link.
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||||
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Called from the linkClicked signal. Checks if it should open it in a
|
||||
tab (middle-click or control) or not, and does so.
|
||||
|
||||
Args:
|
||||
url: The url to handle, as string or QUrl.
|
||||
|
||||
Emit:
|
||||
open_tab: Emitted if window should be opened in a new tab.
|
||||
|
||||
"""
|
||||
if self._open_new_tab:
|
||||
self.open_tab.emit(url)
|
||||
else:
|
||||
self.openurl(url)
|
||||
|
||||
def shutdown(self, callback=None):
|
||||
"""Shut down the tab cleanly and remove it.
|
||||
|
||||
Inspired by [1].
|
||||
|
||||
[1] https://github.com/integricho/path-of-a-pyqter/tree/master/qttut08
|
||||
|
||||
Args:
|
||||
callback: Function to call after shutting down.
|
||||
|
||||
"""
|
||||
self._shutdown_callback = callback
|
||||
try:
|
||||
# Avoid loading finished signal when stopping
|
||||
self.loadFinished.disconnect()
|
||||
except TypeError:
|
||||
logging.exception("This should never happen.")
|
||||
self.stop()
|
||||
self.close()
|
||||
self.settings().setAttribute(QWebSettings.JavascriptEnabled, False)
|
||||
|
||||
self._destroyed[self.page_] = False
|
||||
self.page_.destroyed.connect(functools.partial(self._on_destroyed,
|
||||
self.page_))
|
||||
self.page_.deleteLater()
|
||||
|
||||
self._destroyed[self] = False
|
||||
self.destroyed.connect(functools.partial(self._on_destroyed, self))
|
||||
self.deleteLater()
|
||||
|
||||
netman = self.page_.network_access_manager
|
||||
self._destroyed[netman] = False
|
||||
netman.abort_requests()
|
||||
netman.destroyed.connect(functools.partial(self._on_destroyed, netman))
|
||||
netman.deleteLater()
|
||||
logging.debug("Tab shutdown scheduled")
|
||||
|
||||
def _on_destroyed(self, sender):
|
||||
"""Called when a subsystem has been destroyed during shutdown.
|
||||
|
||||
Args:
|
||||
sender: The object which called the callback.
|
||||
|
||||
"""
|
||||
self._destroyed[sender] = True
|
||||
dbgout = '\n'.join(['{}: {}'.format(k.__class__.__name__, v)
|
||||
for (k, v) in self._destroyed.items()])
|
||||
logging.debug("{} has been destroyed, new status:\n{}".format(
|
||||
sender.__class__.__name__, dbgout))
|
||||
if all(self._destroyed.values()):
|
||||
if self._shutdown_callback is not None:
|
||||
logging.debug("Everything destroyed, calling callback")
|
||||
self._shutdown_callback()
|
||||
|
||||
def paintEvent(self, e):
|
||||
"""Extend paintEvent to emit a signal if the scroll position changed.
|
||||
|
||||
This is a bit of a hack: We listen to repaint requests here, in the
|
||||
hope a repaint will always be requested when scrolling, and if the
|
||||
scroll position actually changed, we emit a signal.
|
||||
|
||||
Args:
|
||||
e: The QPaintEvent.
|
||||
|
||||
Emit:
|
||||
scroll_pos_changed; If the scroll position changed.
|
||||
|
||||
"""
|
||||
frame = self.page_.mainFrame()
|
||||
new_pos = (frame.scrollBarValue(Qt.Horizontal),
|
||||
frame.scrollBarValue(Qt.Vertical))
|
||||
if self._scroll_pos != new_pos:
|
||||
self._scroll_pos = new_pos
|
||||
logging.debug("Updating scroll position")
|
||||
frame = self.page_.mainFrame()
|
||||
m = (frame.scrollBarMaximum(Qt.Horizontal),
|
||||
frame.scrollBarMaximum(Qt.Vertical))
|
||||
perc = (round(100 * new_pos[0] / m[0]) if m[0] != 0 else 0,
|
||||
round(100 * new_pos[1] / m[1]) if m[1] != 0 else 0)
|
||||
self.scroll_pos_changed.emit(*perc)
|
||||
# Let superclass handle the event
|
||||
return super().paintEvent(e)
|
||||
|
||||
def event(self, e):
|
||||
"""Check if a link was clicked with the middle button or Ctrl.
|
||||
|
||||
Extend the superclass event().
|
||||
|
||||
This also is a bit of a hack, but it seems it's the only possible way.
|
||||
Set the _open_new_tab attribute accordingly.
|
||||
|
||||
Args:
|
||||
e: The arrived event.
|
||||
|
||||
Return:
|
||||
The superclass event return value.
|
||||
|
||||
"""
|
||||
if e.type() in [QEvent.MouseButtonPress, QEvent.MouseButtonDblClick]:
|
||||
self._open_new_tab = (e.button() == Qt.MidButton or
|
||||
e.modifiers() & Qt.ControlModifier)
|
||||
return super().event(e)
|
||||
|
||||
|
||||
class BrowserPage(QWebPage):
|
||||
|
||||
"""Our own QWebPage with advanced features.
|
||||
|
||||
Attributes:
|
||||
_extension_handlers: Mapping of QWebPage extensions to their handlers.
|
||||
network_access_manager: The QNetworkAccessManager used.
|
||||
|
||||
"""
|
||||
|
||||
def __init__(self, parent=None):
|
||||
super().__init__(parent)
|
||||
self._extension_handlers = {
|
||||
QWebPage.ErrorPageExtension: self._handle_errorpage,
|
||||
}
|
||||
self.network_access_manager = NetworkManager(self)
|
||||
self.setNetworkAccessManager(self.network_access_manager)
|
||||
|
||||
def _handle_errorpage(self, opt, out):
|
||||
"""Display an error page if needed.
|
||||
|
||||
Loosly based on Helpviewer/HelpBrowserWV.py from eric5
|
||||
(line 260 @ 5d937eb378dd)
|
||||
|
||||
Args:
|
||||
opt: The QWebPage.ErrorPageExtensionOption instance.
|
||||
out: The QWebPage.ErrorPageExtensionReturn instance to write return
|
||||
values to.
|
||||
|
||||
Return:
|
||||
False if no error page should be displayed, True otherwise.
|
||||
|
||||
"""
|
||||
info = sip.cast(opt, QWebPage.ErrorPageExtensionOption)
|
||||
errpage = sip.cast(out, QWebPage.ErrorPageExtensionReturn)
|
||||
errpage.baseUrl = info.url
|
||||
if (info.domain == QWebPage.QtNetwork and
|
||||
info.error == QNetworkReply.OperationCanceledError):
|
||||
return False
|
||||
urlstr = urlutils.urlstring(info.url)
|
||||
title = "Error loading page: {}".format(urlstr)
|
||||
errpage.content = read_file('html/error.html').format(
|
||||
title=title, url=urlstr, error=info.errorString, icon='')
|
||||
return True
|
||||
|
||||
def supportsExtension(self, ext):
|
||||
"""Override QWebPage::supportsExtension to provide error pages.
|
||||
|
||||
Args:
|
||||
ext: The extension to check for.
|
||||
|
||||
Return:
|
||||
True if the extension can be handled, False otherwise.
|
||||
|
||||
"""
|
||||
return ext in self._extension_handlers
|
||||
|
||||
def extension(self, ext, opt, out):
|
||||
"""Override QWebPage::extension to provide error pages.
|
||||
|
||||
Args:
|
||||
ext: The extension.
|
||||
opt: Extension options instance.
|
||||
out: Extension output instance.
|
||||
|
||||
Return:
|
||||
Handler return value.
|
||||
|
||||
"""
|
||||
try:
|
||||
handler = self._extension_handlers[ext]
|
||||
except KeyError:
|
||||
return super().extension(ext, opt, out)
|
||||
return handler(opt, out)
|
||||
Loading…
Reference in New Issue
Block a user