150 lines
4.8 KiB
Python
150 lines
4.8 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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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 tab widget used for TabbedBrowser from browser.py."""
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from PyQt5.QtCore import pyqtSlot, Qt, QSize
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from PyQt5.QtWidgets import QTabWidget, QTabBar, QSizePolicy
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from PyQt5.QtGui import QIcon, QPixmap
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import qutebrowser.config.config as config
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from qutebrowser.config.style import set_register_stylesheet
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from qutebrowser.utils.style import Style
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from qutebrowser.utils.qt import qt_ensure_valid
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class EmptyTabIcon(QIcon):
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"""An empty icon for a tab.
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Qt somehow cuts text off when padding is used for the tabbar, see
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https://bugreports.qt-project.org/browse/QTBUG-15203
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Until we find a better solution we use this hack of using a simple
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transparent icon to get some padding, because when a real favicon is set,
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the padding seems to be fine...
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"""
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def __init__(self):
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pix = QPixmap(2, 16)
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pix.fill(Qt.transparent)
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super().__init__(pix)
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class TabWidget(QTabWidget):
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"""The tabwidget used for TabbedBrowser.
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Class attributes:
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STYLESHEET: The stylesheet template to be used.
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"""
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STYLESHEET = """
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QTabWidget::pane {{
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position: absolute;
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top: 0px;
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}}
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QTabBar {{
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{font[tabbar]}
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{color[tab.bg.bar]}
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}}
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QTabBar::tab {{
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{color[tab.bg]}
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{color[tab.fg]}
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border-right: 2px solid {color[tab.seperator]};
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min-width: {config[tabbar][min-tab-width]}px;
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max-width: {config[tabbar][max-tab-width]}px;
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}}
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QTabBar::tab:selected {{
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{color[tab.bg.selected]}
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}}
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"""
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def __init__(self, parent):
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super().__init__(parent)
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self.setTabBar(TabBar())
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self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
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self.setStyle(Style(self.style()))
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set_register_stylesheet(self)
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self.setDocumentMode(True)
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self.setElideMode(Qt.ElideRight)
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self.tabBar().setDrawBase(False)
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self._init_config()
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def _init_config(self):
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"""Initialize attributes based on the config."""
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position_conv = {
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'north': QTabWidget.North,
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'south': QTabWidget.South,
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'west': QTabWidget.West,
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'east': QTabWidget.East,
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}
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select_conv = {
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'left': QTabBar.SelectLeftTab,
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'right': QTabBar.SelectRightTab,
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'previous': QTabBar.SelectPreviousTab,
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}
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self.setMovable(config.get('tabbar', 'movable'))
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self.setTabsClosable(config.get('tabbar', 'close-buttons'))
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self.setUsesScrollButtons(config.get('tabbar', 'scroll-buttons'))
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posstr = config.get('tabbar', 'position')
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selstr = config.get('tabbar', 'select-on-remove')
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self.setTabPosition(position_conv[posstr])
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self.tabBar().setSelectionBehaviorOnRemove(select_conv[selstr])
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@pyqtSlot(str, str)
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def on_config_changed(self, section, _option):
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"""Update attributes when config changed."""
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if section == 'tabbar':
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self._init_config()
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class TabBar(QTabBar):
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"""Custom tabbar to close tabs on right click."""
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def __repr__(self):
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return '<{} with {} tabs>'.format(self.__class__.__name__,
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self.count())
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def mousePressEvent(self, e):
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"""Override mousePressEvent to emit tabCloseRequested on rightclick."""
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if e.button() != Qt.RightButton:
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super().mousePressEvent(e)
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idx = self.tabAt(e.pos())
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if idx == -1:
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super().mousePressEvent(e)
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self.tabCloseRequested.emit(idx)
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def tabSizeHint(self, index):
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"""Override tabSizeHint so all tabs are the same size.
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https://wiki.python.org/moin/PyQt/Customising%20tab%20bars
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"""
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if config.get('tabbar', 'expand'):
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height = super().tabSizeHint(index).height()
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size = QSize(self.width() / self.count(), height)
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else:
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size = super().tabSizeHint(index)
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qt_ensure_valid(size)
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return size
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