0557fea79e
From the QApplication.postEvent docs: http://doc.qt.io/qt-5/qcoreapplication.html#postEvent The event must be allocated on the heap since the post event queue will take ownership of the event and delete it once it has been posted. It is not safe to access the event after it has been posted. We can't reliably guarantee that from Python, so we need to use sendEvent instead.
712 lines
21 KiB
Python
712 lines
21 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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# Copyright 2016 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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"""Base class for a wrapper over QWebView/QWebEngineView."""
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import itertools
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from PyQt5.QtCore import pyqtSignal, pyqtSlot, QUrl, QObject, QSizeF
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from PyQt5.QtGui import QIcon
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from PyQt5.QtWidgets import QWidget
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from qutebrowser.keyinput import modeman
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from qutebrowser.config import config
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from qutebrowser.utils import (utils, objreg, usertypes, message, log, qtutils,
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urlutils)
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from qutebrowser.misc import miscwidgets
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from qutebrowser.browser import mouse, hints
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tab_id_gen = itertools.count(0)
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def create(win_id, parent=None):
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"""Get a QtWebKit/QtWebEngine tab object.
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Args:
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win_id: The window ID where the tab will be shown.
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parent: The Qt parent to set.
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"""
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# Importing modules here so we don't depend on QtWebEngine without the
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# argument and to avoid circular imports.
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mode_manager = modeman.instance(win_id)
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if objreg.get('args').backend == 'webengine':
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from qutebrowser.browser.webengine import webenginetab
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tab_class = webenginetab.WebEngineTab
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else:
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from qutebrowser.browser.webkit import webkittab
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tab_class = webkittab.WebKitTab
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return tab_class(win_id=win_id, mode_manager=mode_manager, parent=parent)
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class WebTabError(Exception):
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"""Base class for various errors."""
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class TabData:
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"""A simple namespace with a fixed set of attributes.
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Attributes:
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keep_icon: Whether the (e.g. cloned) icon should not be cleared on page
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load.
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inspector: The QWebInspector used for this webview.
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viewing_source: Set if we're currently showing a source view.
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open_target: How the next clicked link should be opened.
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override_target: Override for open_target for fake clicks (like hints).
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"""
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def __init__(self):
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self.keep_icon = False
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self.viewing_source = False
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self.inspector = None
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self.open_target = usertypes.ClickTarget.normal
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self.override_target = None
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def combined_target(self):
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if self.override_target is not None:
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return self.override_target
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else:
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return self.open_target
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class AbstractPrinting:
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"""Attribute of AbstractTab for printing the page."""
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def __init__(self):
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self._widget = None
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def check_pdf_support(self):
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raise NotImplementedError
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def check_printer_support(self):
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raise NotImplementedError
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def to_pdf(self, filename):
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raise NotImplementedError
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def to_printer(self, printer):
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raise NotImplementedError
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class AbstractSearch(QObject):
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"""Attribute of AbstractTab for doing searches.
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Attributes:
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text: The last thing this view was searched for.
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_flags: The flags of the last search (needs to be set by subclasses).
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_widget: The underlying WebView widget.
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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._widget = None
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self.text = None
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def search(self, text, *, ignore_case=False, reverse=False,
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result_cb=None):
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"""Find the given text on the page.
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Args:
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text: The text to search for.
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ignore_case: Search case-insensitively. (True/False/'smart')
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reverse: Reverse search direction.
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result_cb: Called with a bool indicating whether a match was found.
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"""
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raise NotImplementedError
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def clear(self):
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"""Clear the current search."""
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raise NotImplementedError
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def prev_result(self, *, result_cb=None):
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"""Go to the previous result of the current search.
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Args:
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result_cb: Called with a bool indicating whether a match was found.
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"""
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raise NotImplementedError
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def next_result(self, *, result_cb=None):
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"""Go to the next result of the current search.
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Args:
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result_cb: Called with a bool indicating whether a match was found.
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"""
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raise NotImplementedError
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class AbstractZoom(QObject):
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"""Attribute of AbstractTab for controlling zoom.
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Attributes:
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_neighborlist: A NeighborList with the zoom levels.
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_default_zoom_changed: Whether the zoom was changed from the default.
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"""
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def __init__(self, win_id, parent=None):
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super().__init__(parent)
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self._widget = None
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self._win_id = win_id
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self._default_zoom_changed = False
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self._init_neighborlist()
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objreg.get('config').changed.connect(self._on_config_changed)
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# # FIXME:qtwebengine is this needed?
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# # For some reason, this signal doesn't get disconnected automatically
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# # when the WebView is destroyed on older PyQt versions.
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# # See https://github.com/The-Compiler/qutebrowser/issues/390
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# self.destroyed.connect(functools.partial(
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# cfg.changed.disconnect, self.init_neighborlist))
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@pyqtSlot(str, str)
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def _on_config_changed(self, section, option):
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if section == 'ui' and option in ['zoom-levels', 'default-zoom']:
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if not self._default_zoom_changed:
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factor = float(config.get('ui', 'default-zoom')) / 100
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self._set_factor_internal(factor)
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self._default_zoom_changed = False
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self._init_neighborlist()
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def _init_neighborlist(self):
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"""Initialize self._neighborlist."""
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levels = config.get('ui', 'zoom-levels')
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self._neighborlist = usertypes.NeighborList(
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levels, mode=usertypes.NeighborList.Modes.edge)
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self._neighborlist.fuzzyval = config.get('ui', 'default-zoom')
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def offset(self, offset):
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"""Increase/Decrease the zoom level by the given offset.
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Args:
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offset: The offset in the zoom level list.
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Return:
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The new zoom percentage.
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"""
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level = self._neighborlist.getitem(offset)
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self.set_factor(float(level) / 100, fuzzyval=False)
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return level
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def set_factor(self, factor, *, fuzzyval=True):
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"""Zoom to a given zoom factor.
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Args:
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factor: The zoom factor as float.
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fuzzyval: Whether to set the NeighborLists fuzzyval.
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"""
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if fuzzyval:
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self._neighborlist.fuzzyval = int(factor * 100)
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if factor < 0:
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raise ValueError("Can't zoom to factor {}!".format(factor))
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self._default_zoom_changed = True
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self._set_factor_internal(factor)
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def factor(self):
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raise NotImplementedError
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def set_default(self):
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default_zoom = config.get('ui', 'default-zoom')
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self._set_factor_internal(float(default_zoom) / 100)
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class AbstractCaret(QObject):
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"""Attribute of AbstractTab for caret browsing."""
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def __init__(self, win_id, tab, mode_manager, parent=None):
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super().__init__(parent)
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self._tab = tab
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self._win_id = win_id
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self._widget = None
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self.selection_enabled = False
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mode_manager.entered.connect(self._on_mode_entered)
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mode_manager.left.connect(self._on_mode_left)
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def _on_mode_entered(self, mode):
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raise NotImplementedError
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def _on_mode_left(self):
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raise NotImplementedError
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def move_to_next_line(self, count=1):
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raise NotImplementedError
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def move_to_prev_line(self, count=1):
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raise NotImplementedError
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def move_to_next_char(self, count=1):
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raise NotImplementedError
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def move_to_prev_char(self, count=1):
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raise NotImplementedError
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def move_to_end_of_word(self, count=1):
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raise NotImplementedError
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def move_to_next_word(self, count=1):
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raise NotImplementedError
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def move_to_prev_word(self, count=1):
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raise NotImplementedError
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def move_to_start_of_line(self):
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raise NotImplementedError
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def move_to_end_of_line(self):
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raise NotImplementedError
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def move_to_start_of_next_block(self, count=1):
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raise NotImplementedError
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def move_to_start_of_prev_block(self, count=1):
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raise NotImplementedError
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def move_to_end_of_next_block(self, count=1):
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raise NotImplementedError
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def move_to_end_of_prev_block(self, count=1):
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raise NotImplementedError
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def move_to_start_of_document(self):
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raise NotImplementedError
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def move_to_end_of_document(self):
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raise NotImplementedError
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def toggle_selection(self):
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raise NotImplementedError
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def drop_selection(self):
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raise NotImplementedError
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def has_selection(self):
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raise NotImplementedError
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def selection(self, html=False):
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raise NotImplementedError
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def follow_selected(self, *, tab=False):
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raise NotImplementedError
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class AbstractScroller(QObject):
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"""Attribute of AbstractTab to manage scroll position."""
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perc_changed = pyqtSignal(int, int)
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def __init__(self, tab, parent=None):
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super().__init__(parent)
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self._tab = tab
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self._widget = None
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def _init_widget(self, widget):
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self._widget = widget
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def pos_px(self):
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raise NotImplementedError
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def pos_perc(self):
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raise NotImplementedError
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def to_perc(self, x=None, y=None):
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raise NotImplementedError
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def to_point(self, point):
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raise NotImplementedError
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def delta(self, x=0, y=0):
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raise NotImplementedError
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def delta_page(self, x=0, y=0):
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raise NotImplementedError
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def up(self, count=1):
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raise NotImplementedError
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def down(self, count=1):
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raise NotImplementedError
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def left(self, count=1):
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raise NotImplementedError
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def right(self, count=1):
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raise NotImplementedError
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def top(self):
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raise NotImplementedError
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def bottom(self):
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raise NotImplementedError
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def page_up(self, count=1):
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raise NotImplementedError
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def page_down(self, count=1):
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raise NotImplementedError
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def at_top(self):
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raise NotImplementedError
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def at_bottom(self):
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raise NotImplementedError
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class AbstractHistory:
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"""The history attribute of a AbstractTab."""
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def __init__(self, tab):
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self._tab = tab
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self._history = None
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def __len__(self):
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return len(self._history)
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def __iter__(self):
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return iter(self._history.items())
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def current_idx(self):
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raise NotImplementedError
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def back(self):
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raise NotImplementedError
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def forward(self):
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raise NotImplementedError
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def can_go_back(self):
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raise NotImplementedError
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def can_go_forward(self):
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raise NotImplementedError
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def serialize(self):
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"""Serialize into an opaque format understood by self.deserialize."""
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raise NotImplementedError
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def deserialize(self, data):
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"""Serialize from a format produced by self.serialize."""
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raise NotImplementedError
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def load_items(self, items):
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"""Deserialize from a list of WebHistoryItems."""
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raise NotImplementedError
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class AbstractElements:
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"""Finding and handling of elements on the page."""
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def __init__(self, tab):
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self._widget = None
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self._tab = tab
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def find_css(self, selector, callback, *, only_visible=False):
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"""Find all HTML elements matching a given selector async.
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Args:
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callback: The callback to be called when the search finished.
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selector: The CSS selector to search for.
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only_visible: Only show elements which are visible on screen.
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"""
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raise NotImplementedError
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def find_id(self, elem_id, callback):
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"""Find the HTML element with the given ID async.
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Args:
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callback: The callback to be called when the search finished.
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elem_id: The ID to search for.
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"""
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raise NotImplementedError
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def find_focused(self, callback):
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"""Find the focused element on the page async.
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Args:
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callback: The callback to be called when the search finished.
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Called with a WebEngineElement or None.
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"""
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raise NotImplementedError
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def find_at_pos(self, pos, callback):
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"""Find the element at the given position async.
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This is also called "hit test" elsewhere.
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Args:
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pos: The QPoint to get the element for.
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callback: The callback to be called when the search finished.
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Called with a WebEngineElement or None.
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"""
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raise NotImplementedError
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class AbstractTab(QWidget):
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"""A wrapper over the given widget to hide its API and expose another one.
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We use this to unify QWebView and QWebEngineView.
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Attributes:
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history: The AbstractHistory for the current tab.
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registry: The ObjectRegistry associated with this tab.
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_load_status: loading status of this page
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Accessible via load_status() method.
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_has_ssl_errors: Whether SSL errors happened.
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Needs to be set by subclasses.
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for properties, see WebView/WebEngineView docs.
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Signals:
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See related Qt signals.
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new_tab_requested: Emitted when a new tab should be opened with the
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given URL.
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load_status_changed: The loading status changed
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"""
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window_close_requested = pyqtSignal()
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link_hovered = pyqtSignal(str)
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load_started = pyqtSignal()
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load_progress = pyqtSignal(int)
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load_finished = pyqtSignal(bool)
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icon_changed = pyqtSignal(QIcon)
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title_changed = pyqtSignal(str)
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load_status_changed = pyqtSignal(str)
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new_tab_requested = pyqtSignal(QUrl)
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url_changed = pyqtSignal(QUrl)
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shutting_down = pyqtSignal()
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contents_size_changed = pyqtSignal(QSizeF)
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add_history_item = pyqtSignal(QUrl, QUrl, str) # url, requested url, title
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def __init__(self, win_id, parent=None):
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self.win_id = win_id
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self.tab_id = next(tab_id_gen)
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super().__init__(parent)
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self.registry = objreg.ObjectRegistry()
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tab_registry = objreg.get('tab-registry', scope='window',
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window=win_id)
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tab_registry[self.tab_id] = self
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objreg.register('tab', self, registry=self.registry)
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# self.history = AbstractHistory(self)
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# self.scroller = AbstractScroller(self, parent=self)
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# self.caret = AbstractCaret(win_id=win_id, tab=self, mode_manager=...,
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# parent=self)
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# self.zoom = AbstractZoom(win_id=win_id)
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# self.search = AbstractSearch(parent=self)
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# self.printing = AbstractPrinting()
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# self.elements = AbstractElements(self)
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self.data = TabData()
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self._layout = miscwidgets.WrapperLayout(self)
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self._widget = None
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self._progress = 0
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self._has_ssl_errors = False
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self._load_status = usertypes.LoadStatus.none
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self._mouse_event_filter = mouse.MouseEventFilter(self, parent=self)
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self.backend = None
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# FIXME:qtwebengine Should this be public api via self.hints?
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# Also, should we get it out of objreg?
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hintmanager = hints.HintManager(win_id, self.tab_id, parent=self)
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objreg.register('hintmanager', hintmanager, scope='tab',
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window=self.win_id, tab=self.tab_id)
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def _set_widget(self, widget):
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# pylint: disable=protected-access
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self._widget = widget
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self._layout.wrap(self, widget)
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self.history._history = widget.history()
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self.scroller._init_widget(widget)
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self.caret._widget = widget
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self.zoom._widget = widget
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self.search._widget = widget
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self.printing._widget = widget
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self.elements._widget = widget
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self._install_event_filter()
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def _install_event_filter(self):
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raise NotImplementedError
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def _set_load_status(self, val):
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"""Setter for load_status."""
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if not isinstance(val, usertypes.LoadStatus):
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raise TypeError("Type {} is no LoadStatus member!".format(val))
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log.webview.debug("load status for {}: {}".format(repr(self), val))
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self._load_status = val
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self.load_status_changed.emit(val.name)
|
|
|
|
def send_event(self, evt):
|
|
"""Send the given event to the underlying widget."""
|
|
raise NotImplementedError
|
|
|
|
@pyqtSlot(QUrl)
|
|
def _on_link_clicked(self, url):
|
|
log.webview.debug("link clicked: url {}, override target {}, "
|
|
"open_target {}".format(
|
|
url.toDisplayString(),
|
|
self.data.override_target,
|
|
self.data.open_target))
|
|
|
|
if not url.isValid():
|
|
msg = urlutils.get_errstring(url, "Invalid link clicked")
|
|
message.error(self.win_id, msg)
|
|
self.data.open_target = usertypes.ClickTarget.normal
|
|
return False
|
|
|
|
target = self.data.combined_target()
|
|
|
|
if target == usertypes.ClickTarget.normal:
|
|
return
|
|
elif target == usertypes.ClickTarget.tab:
|
|
win_id = self.win_id
|
|
bg_tab = False
|
|
elif target == usertypes.ClickTarget.tab_bg:
|
|
win_id = self.win_id
|
|
bg_tab = True
|
|
elif target == usertypes.ClickTarget.window:
|
|
from qutebrowser.mainwindow import mainwindow
|
|
window = mainwindow.MainWindow()
|
|
window.show()
|
|
win_id = window.win_id
|
|
bg_tab = False
|
|
else:
|
|
raise ValueError("Invalid ClickTarget {}".format(target))
|
|
|
|
tabbed_browser = objreg.get('tabbed-browser', scope='window',
|
|
window=win_id)
|
|
tabbed_browser.tabopen(url, background=bg_tab)
|
|
self.data.open_target = usertypes.ClickTarget.normal
|
|
|
|
@pyqtSlot(QUrl)
|
|
def _on_url_changed(self, url):
|
|
"""Update title when URL has changed and no title is available."""
|
|
if url.isValid() and not self.title():
|
|
self.title_changed.emit(url.toDisplayString())
|
|
self.url_changed.emit(url)
|
|
|
|
@pyqtSlot()
|
|
def _on_load_started(self):
|
|
self._progress = 0
|
|
self._has_ssl_errors = False
|
|
self.data.viewing_source = False
|
|
self._set_load_status(usertypes.LoadStatus.loading)
|
|
self.load_started.emit()
|
|
|
|
@pyqtSlot(bool)
|
|
def _on_load_finished(self, ok):
|
|
if ok and not self._has_ssl_errors:
|
|
if self.url().scheme() == 'https':
|
|
self._set_load_status(usertypes.LoadStatus.success_https)
|
|
else:
|
|
self._set_load_status(usertypes.LoadStatus.success)
|
|
|
|
elif ok:
|
|
self._set_load_status(usertypes.LoadStatus.warn)
|
|
else:
|
|
self._set_load_status(usertypes.LoadStatus.error)
|
|
self.load_finished.emit(ok)
|
|
if not self.title():
|
|
self.title_changed.emit(self.url().toDisplayString())
|
|
|
|
@pyqtSlot()
|
|
def _on_history_trigger(self):
|
|
"""Emit add_history_item when triggered by backend-specific signal."""
|
|
raise NotImplementedError
|
|
|
|
@pyqtSlot(int)
|
|
def _on_load_progress(self, perc):
|
|
self._progress = perc
|
|
self.load_progress.emit(perc)
|
|
|
|
@pyqtSlot()
|
|
def _on_ssl_errors(self):
|
|
self._has_ssl_errors = True
|
|
|
|
def url(self, requested=False):
|
|
raise NotImplementedError
|
|
|
|
def progress(self):
|
|
return self._progress
|
|
|
|
def load_status(self):
|
|
return self._load_status
|
|
|
|
def _openurl_prepare(self, url):
|
|
qtutils.ensure_valid(url)
|
|
self.title_changed.emit(url.toDisplayString())
|
|
|
|
def openurl(self, url):
|
|
raise NotImplementedError
|
|
|
|
def reload(self, *, force=False):
|
|
raise NotImplementedError
|
|
|
|
def stop(self):
|
|
raise NotImplementedError
|
|
|
|
def clear_ssl_errors(self):
|
|
raise NotImplementedError
|
|
|
|
def dump_async(self, callback, *, plain=False):
|
|
"""Dump the current page to a file ascync.
|
|
|
|
The given callback will be called with the result when dumping is
|
|
complete.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def run_js_async(self, code, callback=None):
|
|
"""Run javascript async.
|
|
|
|
The given callback will be called with the result when running JS is
|
|
complete.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def shutdown(self):
|
|
raise NotImplementedError
|
|
|
|
def title(self):
|
|
raise NotImplementedError
|
|
|
|
def icon(self):
|
|
raise NotImplementedError
|
|
|
|
def set_html(self, html, base_url):
|
|
raise NotImplementedError
|
|
|
|
def __repr__(self):
|
|
try:
|
|
url = utils.elide(self.url().toDisplayString(QUrl.EncodeUnicode),
|
|
100)
|
|
except AttributeError:
|
|
url = '<AttributeError>'
|
|
return utils.get_repr(self, tab_id=self.tab_id, url=url)
|