예제 #1
0
    def __init__(self):
        super(MainWindow, self).__init__()

        self.setWindowTitle('PySide2 tabbed browser Example')

        self._tab_widget = BrowserTabWidget(create_main_window_with_browser)
        self._tab_widget.enabled_changed.connect(self._enabled_changed)
        self._tab_widget.download_requested.connect(self._download_requested)
        self.setCentralWidget(self._tab_widget)
        self.connect(self._tab_widget, QtCore.SIGNAL("url_changed(QUrl)"),
                     self.url_changed)

        self._bookmark_dock = QDockWidget()
        self._bookmark_dock.setWindowTitle('Bookmarks')
        self._bookmark_widget = BookmarkWidget()
        self._bookmark_widget.open_bookmark.connect(self.load_url)
        self._bookmark_widget.open_bookmark_in_new_tab.connect(
            self.load_url_in_new_tab)
        self._bookmark_dock.setWidget(self._bookmark_widget)
        self.addDockWidget(Qt.LeftDockWidgetArea, self._bookmark_dock)

        self._find_tool_bar = None

        self._actions = {}
        self._create_menu()

        self._tool_bar = QToolBar()
        self.addToolBar(self._tool_bar)
        for action in self._actions.values():
            if not action.icon().isNull():
                self._tool_bar.addAction(action)

        self._addres_line_edit = QLineEdit()
        self._addres_line_edit.setClearButtonEnabled(True)
        self._addres_line_edit.returnPressed.connect(self.load)
        self._tool_bar.addWidget(self._addres_line_edit)
        self._zoom_label = QLabel()
        self.statusBar().addPermanentWidget(self._zoom_label)
        self._update_zoom_label()

        self._bookmarksToolBar = QToolBar()
        self.addToolBar(Qt.TopToolBarArea, self._bookmarksToolBar)
        self.insertToolBarBreak(self._bookmarksToolBar)
        self._bookmark_widget.changed.connect(self._update_bookmarks)
        self._update_bookmarks()
예제 #2
0
    def __init__(self):
        super(MainWindow, self).__init__()

        self.setWindowTitle('PySide2 Tabbed Browser Example')

        self._tabWidget = BrowserTabWidget(createMainWindowWithBrowser)
        self._tabWidget.enabledChanged.connect(self._enabledChanged)
        self._tabWidget.downloadRequested.connect(self._downloadRequested)
        self.setCentralWidget(self._tabWidget)
        self.connect(self._tabWidget, QtCore.SIGNAL("urlChanged(QUrl)"),
                     self.urlChanged)

        self._bookmarkDock = QDockWidget()
        self._bookmarkDock.setWindowTitle('Bookmarks')
        self._bookmarkWidget = BookmarkWidget()
        self._bookmarkWidget.openBookmark.connect(self.loadUrl)
        self._bookmarkWidget.openBookmarkInNewTab.connect(self.loadUrlInNewTab)
        self._bookmarkDock.setWidget(self._bookmarkWidget)
        self.addDockWidget(Qt.LeftDockWidgetArea, self._bookmarkDock)

        self._findToolBar = None

        self._actions = {}
        self._createMenu()

        self._toolBar = QToolBar()
        self.addToolBar(self._toolBar)
        for action in self._actions.values():
            if not action.icon().isNull():
                self._toolBar.addAction(action)

        self._addressLineEdit = QLineEdit()
        self._addressLineEdit.setClearButtonEnabled(True)
        self._addressLineEdit.returnPressed.connect(self.load)
        self._toolBar.addWidget(self._addressLineEdit)
        self._zoomLabel = QLabel()
        self.statusBar().addPermanentWidget(self._zoomLabel)
        self._updateZoomLabel()

        self._bookmarksToolBar = QToolBar()
        self.addToolBar(Qt.TopToolBarArea, self._bookmarksToolBar)
        self.insertToolBarBreak(self._bookmarksToolBar)
        self._bookmarkWidget.changed.connect(self._updateBookmarks)
        self._updateBookmarks()
예제 #3
0
    def __init__(self):
        super(MainWindow, self).__init__()

        self.setWindowTitle('PySide2 tabbed browser Example')

        self._tab_widget = BrowserTabWidget(create_main_window_with_browser)
        self._tab_widget.enabled_changed.connect(self._enabled_changed)
        self._tab_widget.download_requested.connect(self._download_requested)
        self.setCentralWidget(self._tab_widget)
        self.connect(self._tab_widget, QtCore.SIGNAL("url_changed(QUrl)"),
                     self.url_changed)

        self._bookmark_dock = QDockWidget()
        self._bookmark_dock.setWindowTitle('Bookmarks')
        self._bookmark_widget = BookmarkWidget()
        self._bookmark_widget.open_bookmark.connect(self.load_url)
        self._bookmark_widget.open_bookmark_in_new_tab.connect(self.load_url_in_new_tab)
        self._bookmark_dock.setWidget(self._bookmark_widget)
        self.addDockWidget(Qt.LeftDockWidgetArea, self._bookmark_dock)

        self._find_tool_bar = None

        self._actions = {}
        self._create_menu()

        self._tool_bar = QToolBar()
        self.addToolBar(self._tool_bar)
        for action in self._actions.values():
            if not action.icon().isNull():
                self._tool_bar.addAction(action)

        self._addres_line_edit = QLineEdit()
        self._addres_line_edit.setClearButtonEnabled(True)
        self._addres_line_edit.returnPressed.connect(self.load)
        self._tool_bar.addWidget(self._addres_line_edit)
        self._zoom_label = QLabel()
        self.statusBar().addPermanentWidget(self._zoom_label)
        self._update_zoom_label()

        self._bookmarksToolBar = QToolBar()
        self.addToolBar(Qt.TopToolBarArea, self._bookmarksToolBar)
        self.insertToolBarBreak(self._bookmarksToolBar)
        self._bookmark_widget.changed.connect(self._update_bookmarks)
        self._update_bookmarks()
예제 #4
0
class MainWindow(QMainWindow):
    """Provides the parent window that includes the BookmarkWidget,
    BrowserTabWidget, and a DownloadWidget, to offer the complete
    web browsing experience."""
    def __init__(self):
        super(MainWindow, self).__init__()

        self.setWindowTitle('PySide2 tabbed browser Example')

        self._tab_widget = BrowserTabWidget(create_main_window_with_browser)
        self._tab_widget.enabled_changed.connect(self._enabled_changed)
        self._tab_widget.download_requested.connect(self._download_requested)
        self.setCentralWidget(self._tab_widget)
        self.connect(self._tab_widget, QtCore.SIGNAL("url_changed(QUrl)"),
                     self.url_changed)

        self._bookmark_dock = QDockWidget()
        self._bookmark_dock.setWindowTitle('Bookmarks')
        self._bookmark_widget = BookmarkWidget()
        self._bookmark_widget.open_bookmark.connect(self.load_url)
        self._bookmark_widget.open_bookmark_in_new_tab.connect(
            self.load_url_in_new_tab)
        self._bookmark_dock.setWidget(self._bookmark_widget)
        self.addDockWidget(Qt.LeftDockWidgetArea, self._bookmark_dock)

        self._find_tool_bar = None

        self._actions = {}
        self._create_menu()

        self._tool_bar = QToolBar()
        self.addToolBar(self._tool_bar)
        for action in self._actions.values():
            if not action.icon().isNull():
                self._tool_bar.addAction(action)

        self._addres_line_edit = QLineEdit()
        self._addres_line_edit.setClearButtonEnabled(True)
        self._addres_line_edit.returnPressed.connect(self.load)
        self._tool_bar.addWidget(self._addres_line_edit)
        self._zoom_label = QLabel()
        self.statusBar().addPermanentWidget(self._zoom_label)
        self._update_zoom_label()

        self._bookmarksToolBar = QToolBar()
        self.addToolBar(Qt.TopToolBarArea, self._bookmarksToolBar)
        self.insertToolBarBreak(self._bookmarksToolBar)
        self._bookmark_widget.changed.connect(self._update_bookmarks)
        self._update_bookmarks()

    def _update_bookmarks(self):
        self._bookmark_widget.populate_tool_bar(self._bookmarksToolBar)
        self._bookmark_widget.populate_other(self._bookmark_menu, 3)

    def _create_menu(self):
        file_menu = self.menuBar().addMenu("&File")
        exit_action = QAction(QIcon.fromTheme("application-exit"),
                              "E&xit",
                              self,
                              shortcut="Ctrl+Q",
                              triggered=qApp.quit)
        file_menu.addAction(exit_action)

        navigation_menu = self.menuBar().addMenu("&Navigation")

        style_icons = ':/qt-project.org/styles/commonstyle/images/'
        back_action = QAction(QIcon.fromTheme(
            "go-previous", QIcon(style_icons + 'left-32.png')),
                              "Back",
                              self,
                              shortcut=QKeySequence(QKeySequence.Back),
                              triggered=self._tab_widget.back)
        self._actions[QWebEnginePage.Back] = back_action
        back_action.setEnabled(False)
        navigation_menu.addAction(back_action)
        forward_action = QAction(QIcon.fromTheme(
            "go-next", QIcon(style_icons + 'right-32.png')),
                                 "Forward",
                                 self,
                                 shortcut=QKeySequence(QKeySequence.Forward),
                                 triggered=self._tab_widget.forward)
        forward_action.setEnabled(False)
        self._actions[QWebEnginePage.Forward] = forward_action

        navigation_menu.addAction(forward_action)
        reload_action = QAction(QIcon(style_icons + 'refresh-32.png'),
                                "Reload",
                                self,
                                shortcut=QKeySequence(QKeySequence.Refresh),
                                triggered=self._tab_widget.reload)
        self._actions[QWebEnginePage.Reload] = reload_action
        reload_action.setEnabled(False)
        navigation_menu.addAction(reload_action)

        navigation_menu.addSeparator()

        new_tab_action = QAction("New Tab",
                                 self,
                                 shortcut='Ctrl+T',
                                 triggered=self.add_browser_tab)
        navigation_menu.addAction(new_tab_action)

        close_tab_action = QAction("Close Current Tab",
                                   self,
                                   shortcut="Ctrl+W",
                                   triggered=self._close_current_tab)
        navigation_menu.addAction(close_tab_action)

        edit_menu = self.menuBar().addMenu("&Edit")

        find_action = QAction("Find",
                              self,
                              shortcut=QKeySequence(QKeySequence.Find),
                              triggered=self._show_find)
        edit_menu.addAction(find_action)

        edit_menu.addSeparator()
        undo_action = QAction("Undo",
                              self,
                              shortcut=QKeySequence(QKeySequence.Undo),
                              triggered=self._tab_widget.undo)
        self._actions[QWebEnginePage.Undo] = undo_action
        undo_action.setEnabled(False)
        edit_menu.addAction(undo_action)

        redo_action = QAction("Redo",
                              self,
                              shortcut=QKeySequence(QKeySequence.Redo),
                              triggered=self._tab_widget.redo)
        self._actions[QWebEnginePage.Redo] = redo_action
        redo_action.setEnabled(False)
        edit_menu.addAction(redo_action)

        edit_menu.addSeparator()

        cut_action = QAction("Cut",
                             self,
                             shortcut=QKeySequence(QKeySequence.Cut),
                             triggered=self._tab_widget.cut)
        self._actions[QWebEnginePage.Cut] = cut_action
        cut_action.setEnabled(False)
        edit_menu.addAction(cut_action)

        copy_action = QAction("Copy",
                              self,
                              shortcut=QKeySequence(QKeySequence.Copy),
                              triggered=self._tab_widget.copy)
        self._actions[QWebEnginePage.Copy] = copy_action
        copy_action.setEnabled(False)
        edit_menu.addAction(copy_action)

        paste_action = QAction("Paste",
                               self,
                               shortcut=QKeySequence(QKeySequence.Paste),
                               triggered=self._tab_widget.paste)
        self._actions[QWebEnginePage.Paste] = paste_action
        paste_action.setEnabled(False)
        edit_menu.addAction(paste_action)

        edit_menu.addSeparator()

        select_all_action = QAction("Select All",
                                    self,
                                    shortcut=QKeySequence(
                                        QKeySequence.SelectAll),
                                    triggered=self._tab_widget.select_all)
        self._actions[QWebEnginePage.SelectAll] = select_all_action
        select_all_action.setEnabled(False)
        edit_menu.addAction(select_all_action)

        self._bookmark_menu = self.menuBar().addMenu("&Bookmarks")
        add_bookmark_action = QAction("&Add Bookmark",
                                      self,
                                      triggered=self._add_bookmark)
        self._bookmark_menu.addAction(add_bookmark_action)
        add_tool_bar_bookmark_action = QAction(
            "&Add Bookmark to Tool Bar",
            self,
            triggered=self._add_tool_bar_bookmark)
        self._bookmark_menu.addAction(add_tool_bar_bookmark_action)
        self._bookmark_menu.addSeparator()

        tools_menu = self.menuBar().addMenu("&Tools")
        download_action = QAction(
            "Open Downloads",
            self,
            triggered=DownloadWidget.open_download_directory)
        tools_menu.addAction(download_action)

        window_menu = self.menuBar().addMenu("&Window")

        window_menu.addAction(self._bookmark_dock.toggleViewAction())

        window_menu.addSeparator()

        zoom_in_action = QAction(QIcon.fromTheme("zoom-in"),
                                 "Zoom In",
                                 self,
                                 shortcut=QKeySequence(QKeySequence.ZoomIn),
                                 triggered=self._zoom_in)
        window_menu.addAction(zoom_in_action)
        zoom_out_action = QAction(QIcon.fromTheme("zoom-out"),
                                  "Zoom Out",
                                  self,
                                  shortcut=QKeySequence(QKeySequence.ZoomOut),
                                  triggered=self._zoom_out)
        window_menu.addAction(zoom_out_action)

        reset_zoom_action = QAction(QIcon.fromTheme("zoom-original"),
                                    "Reset Zoom",
                                    self,
                                    shortcut="Ctrl+0",
                                    triggered=self._reset_zoom)
        window_menu.addAction(reset_zoom_action)

        about_menu = self.menuBar().addMenu("&About")
        about_action = QAction("About Qt",
                               self,
                               shortcut=QKeySequence(
                                   QKeySequence.HelpContents),
                               triggered=qApp.aboutQt)
        about_menu.addAction(about_action)

    def add_browser_tab(self):
        return self._tab_widget.add_browser_tab()

    def _close_current_tab(self):
        if self._tab_widget.count() > 1:
            self._tab_widget.close_current_tab()
        else:
            self.close()

    def close_event(self, event):
        main_windows.remove(self)
        event.accept()

    def load(self):
        url_string = self._addres_line_edit.text().strip()
        if url_string:
            self.load_url_string(url_string)

    def load_url_string(self, url_s):
        url = QUrl.fromUserInput(url_s)
        if (url.isValid()):
            self.load_url(url)

    def load_url(self, url):
        self._tab_widget.load(url)

    def load_url_in_new_tab(self, url):
        self.add_browser_tab().load(url)

    def url_changed(self, url):
        self._addres_line_edit.setText(url.toString())

    def _enabled_changed(self, web_action, enabled):
        action = self._actions[web_action]
        if action:
            action.setEnabled(enabled)

    def _add_bookmark(self):
        index = self._tab_widget.currentIndex()
        if index >= 0:
            url = self._tab_widget.url()
            title = self._tab_widget.tabText(index)
            icon = self._tab_widget.tabIcon(index)
            self._bookmark_widget.add_bookmark(url, title, icon)

    def _add_tool_bar_bookmark(self):
        index = self._tab_widget.currentIndex()
        if index >= 0:
            url = self._tab_widget.url()
            title = self._tab_widget.tabText(index)
            icon = self._tab_widget.tabIcon(index)
            self._bookmark_widget.add_tool_bar_bookmark(url, title, icon)

    def _zoom_in(self):
        new_zoom = self._tab_widget.zoom_factor() * 1.5
        if (new_zoom <= WebEngineView.maximum_zoom_factor()):
            self._tab_widget.set_zoom_factor(new_zoom)
            self._update_zoom_label()

    def _zoom_out(self):
        new_zoom = self._tab_widget.zoom_factor() / 1.5
        if (new_zoom >= WebEngineView.minimum_zoom_factor()):
            self._tab_widget.set_zoom_factor(new_zoom)
            self._update_zoom_label()

    def _reset_zoom(self):
        self._tab_widget.set_zoom_factor(1)
        self._update_zoom_label()

    def _update_zoom_label(self):
        percent = int(self._tab_widget.zoom_factor() * 100)
        self._zoom_label.setText("{}%".format(percent))

    def _download_requested(self, item):
        # Remove old downloads before opening a new one
        for old_download in self.statusBar().children():
            if type(old_download).__name__ == 'download_widget' and \
                old_download.state() != QWebEngineDownloadItem.DownloadInProgress:
                self.statusBar().removeWidget(old_download)
                del old_download

        item.accept()
        download_widget = download_widget(item)
        download_widget.removeRequested.connect(
            self._remove_download_requested, Qt.QueuedConnection)
        self.statusBar().addWidget(download_widget)

    def _remove_download_requested(self):
        download_widget = self.sender()
        self.statusBar().removeWidget(download_widget)
        del download_widget

    def _show_find(self):
        if self._find_tool_bar is None:
            self._find_tool_bar = FindToolBar()
            self._find_tool_bar.find.connect(self._tab_widget.find)
            self.addToolBar(Qt.BottomToolBarArea, self._find_tool_bar)
        else:
            self._find_tool_bar.show()
        self._find_tool_bar.focus_find()

    def write_bookmarks(self):
        self._bookmark_widget.write_bookmarks()
예제 #5
0
class MainWindow(QMainWindow):
    """Provides the parent window that includes the BookmarkWidget,
    BrowserTabWidget, and a DownloadWidget, to offer the complete
    web browsing experience."""
    def __init__(self):
        super(MainWindow, self).__init__()

        self.setWindowTitle('PySide2 tabbed browser Example')

        self._tab_widget = BrowserTabWidget(create_main_window_with_browser)
        self._tab_widget.enabled_changed.connect(self._enabled_changed)
        self._tab_widget.download_requested.connect(self._download_requested)
        self.setCentralWidget(self._tab_widget)
        self.connect(self._tab_widget, QtCore.SIGNAL("url_changed(QUrl)"),
                     self.url_changed)

        self._bookmark_dock = QDockWidget()
        self._bookmark_dock.setWindowTitle('Bookmarks')
        self._bookmark_widget = BookmarkWidget()
        self._bookmark_widget.open_bookmark.connect(self.load_url)
        self._bookmark_widget.open_bookmark_in_new_tab.connect(self.load_url_in_new_tab)
        self._bookmark_dock.setWidget(self._bookmark_widget)
        self.addDockWidget(Qt.LeftDockWidgetArea, self._bookmark_dock)

        self._find_tool_bar = None

        self._actions = {}
        self._create_menu()

        self._tool_bar = QToolBar()
        self.addToolBar(self._tool_bar)
        for action in self._actions.values():
            if not action.icon().isNull():
                self._tool_bar.addAction(action)

        self._addres_line_edit = QLineEdit()
        self._addres_line_edit.setClearButtonEnabled(True)
        self._addres_line_edit.returnPressed.connect(self.load)
        self._tool_bar.addWidget(self._addres_line_edit)
        self._zoom_label = QLabel()
        self.statusBar().addPermanentWidget(self._zoom_label)
        self._update_zoom_label()

        self._bookmarksToolBar = QToolBar()
        self.addToolBar(Qt.TopToolBarArea, self._bookmarksToolBar)
        self.insertToolBarBreak(self._bookmarksToolBar)
        self._bookmark_widget.changed.connect(self._update_bookmarks)
        self._update_bookmarks()

    def _update_bookmarks(self):
        self._bookmark_widget.populate_tool_bar(self._bookmarksToolBar)
        self._bookmark_widget.populate_other(self._bookmark_menu, 3)

    def _create_menu(self):
        file_menu = self.menuBar().addMenu("&File")
        exit_action = QAction(QIcon.fromTheme("application-exit"), "E&xit",
                             self, shortcut = "Ctrl+Q", triggered=qApp.quit)
        file_menu.addAction(exit_action)

        navigation_menu = self.menuBar().addMenu("&Navigation")

        style_icons = ':/qt-project.org/styles/commonstyle/images/'
        back_action = QAction(QIcon.fromTheme("go-previous",
                                             QIcon(style_icons + 'left-32.png')),
                             "Back", self,
                             shortcut = QKeySequence(QKeySequence.Back),
                             triggered = self._tab_widget.back)
        self._actions[QWebEnginePage.Back] = back_action
        back_action.setEnabled(False)
        navigation_menu.addAction(back_action)
        forward_action = QAction(QIcon.fromTheme("go-next",
                                                QIcon(style_icons + 'right-32.png')),
                                "Forward", self,
                                shortcut = QKeySequence(QKeySequence.Forward),
                                triggered = self._tab_widget.forward)
        forward_action.setEnabled(False)
        self._actions[QWebEnginePage.Forward] = forward_action

        navigation_menu.addAction(forward_action)
        reload_action = QAction(QIcon(style_icons + 'refresh-32.png'),
                               "Reload", self,
                               shortcut = QKeySequence(QKeySequence.Refresh),
                               triggered = self._tab_widget.reload)
        self._actions[QWebEnginePage.Reload] = reload_action
        reload_action.setEnabled(False)
        navigation_menu.addAction(reload_action)

        navigation_menu.addSeparator()

        new_tab_action = QAction("New Tab", self,
                             shortcut = 'Ctrl+T',
                             triggered = self.add_browser_tab)
        navigation_menu.addAction(new_tab_action)

        close_tab_action = QAction("Close Current Tab", self,
                                 shortcut = "Ctrl+W",
                                 triggered = self._close_current_tab)
        navigation_menu.addAction(close_tab_action)

        edit_menu = self.menuBar().addMenu("&Edit")

        find_action = QAction("Find", self,
                             shortcut = QKeySequence(QKeySequence.Find),
                             triggered = self._show_find)
        edit_menu.addAction(find_action)

        edit_menu.addSeparator()
        undo_action = QAction("Undo", self,
                             shortcut = QKeySequence(QKeySequence.Undo),
                             triggered = self._tab_widget.undo)
        self._actions[QWebEnginePage.Undo] = undo_action
        undo_action.setEnabled(False)
        edit_menu.addAction(undo_action)

        redo_action = QAction("Redo", self,
                             shortcut = QKeySequence(QKeySequence.Redo),
                             triggered = self._tab_widget.redo)
        self._actions[QWebEnginePage.Redo] = redo_action
        redo_action.setEnabled(False)
        edit_menu.addAction(redo_action)

        edit_menu.addSeparator()

        cut_action = QAction("Cut", self,
                            shortcut = QKeySequence(QKeySequence.Cut),
                            triggered = self._tab_widget.cut)
        self._actions[QWebEnginePage.Cut] = cut_action
        cut_action.setEnabled(False)
        edit_menu.addAction(cut_action)

        copy_action = QAction("Copy", self,
                             shortcut = QKeySequence(QKeySequence.Copy),
                             triggered = self._tab_widget.copy)
        self._actions[QWebEnginePage.Copy] = copy_action
        copy_action.setEnabled(False)
        edit_menu.addAction(copy_action)

        paste_action = QAction("Paste", self,
                             shortcut = QKeySequence(QKeySequence.Paste),
                             triggered = self._tab_widget.paste)
        self._actions[QWebEnginePage.Paste] = paste_action
        paste_action.setEnabled(False)
        edit_menu.addAction(paste_action)

        edit_menu.addSeparator()

        select_all_action = QAction("Select All", self,
                                  shortcut = QKeySequence(QKeySequence.SelectAll),
                                  triggered = self._tab_widget.select_all)
        self._actions[QWebEnginePage.SelectAll] = select_all_action
        select_all_action.setEnabled(False)
        edit_menu.addAction(select_all_action)

        self._bookmark_menu = self.menuBar().addMenu("&Bookmarks")
        add_bookmark_action = QAction("&Add Bookmark", self,
                                    triggered = self._add_bookmark)
        self._bookmark_menu.addAction(add_bookmark_action)
        add_tool_bar_bookmark_action = QAction("&Add Bookmark to Tool Bar", self,
                                           triggered = self._add_tool_bar_bookmark)
        self._bookmark_menu.addAction(add_tool_bar_bookmark_action)
        self._bookmark_menu.addSeparator()

        tools_menu = self.menuBar().addMenu("&Tools")
        download_action = QAction("Open Downloads", self,
                                 triggered = DownloadWidget.open_download_directory)
        tools_menu.addAction(download_action)

        window_menu = self.menuBar().addMenu("&Window")

        window_menu.addAction(self._bookmark_dock.toggleViewAction())

        window_menu.addSeparator()

        zoom_in_action = QAction(QIcon.fromTheme("zoom-in"),
                               "Zoom In", self,
                               shortcut = QKeySequence(QKeySequence.ZoomIn),
                               triggered = self._zoom_in)
        window_menu.addAction(zoom_in_action)
        zoom_out_action = QAction(QIcon.fromTheme("zoom-out"),
                                "Zoom Out", self,
                                shortcut = QKeySequence(QKeySequence.ZoomOut),
                                triggered = self._zoom_out)
        window_menu.addAction(zoom_out_action)

        reset_zoom_action = QAction(QIcon.fromTheme("zoom-original"),
                                  "Reset Zoom", self,
                                  shortcut = "Ctrl+0",
                                  triggered = self._reset_zoom)
        window_menu.addAction(reset_zoom_action)

        about_menu = self.menuBar().addMenu("&About")
        about_action = QAction("About Qt", self,
                              shortcut = QKeySequence(QKeySequence.HelpContents),
                              triggered=qApp.aboutQt)
        about_menu.addAction(about_action)

    def add_browser_tab(self):
        return self._tab_widget.add_browser_tab()

    def _close_current_tab(self):
        if self._tab_widget.count() > 1:
            self._tab_widget.close_current_tab()
        else:
            self.close()

    def close_event(self, event):
        main_windows.remove(self)
        event.accept()

    def load(self):
        url_string = self._addres_line_edit.text().strip()
        if url_string:
            self.load_url_string(url_string)

    def load_url_string(self, url_s):
        url = QUrl.fromUserInput(url_s)
        if (url.isValid()):
            self.load_url(url)

    def load_url(self, url):
        self._tab_widget.load(url)

    def load_url_in_new_tab(self, url):
        self.add_browser_tab().load(url)

    def url_changed(self, url):
        self._addres_line_edit.setText(url.toString())

    def _enabled_changed(self, web_action, enabled):
        action = self._actions[web_action]
        if action:
            action.setEnabled(enabled)

    def _add_bookmark(self):
        index = self._tab_widget.currentIndex()
        if index >= 0:
            url = self._tab_widget.url()
            title = self._tab_widget.tabText(index)
            icon = self._tab_widget.tabIcon(index)
            self._bookmark_widget.add_bookmark(url, title, icon)

    def _add_tool_bar_bookmark(self):
        index = self._tab_widget.currentIndex()
        if index >= 0:
            url = self._tab_widget.url()
            title = self._tab_widget.tabText(index)
            icon = self._tab_widget.tabIcon(index)
            self._bookmark_widget.add_tool_bar_bookmark(url, title, icon)

    def _zoom_in(self):
        new_zoom = self._tab_widget.zoom_factor() * 1.5
        if (new_zoom <= WebEngineView.maximum_zoom_factor()):
            self._tab_widget.set_zoom_factor(new_zoom)
            self._update_zoom_label()

    def _zoom_out(self):
        new_zoom = self._tab_widget.zoom_factor() / 1.5
        if (new_zoom >= WebEngineView.minimum_zoom_factor()):
            self._tab_widget.set_zoom_factor(new_zoom)
            self._update_zoom_label()

    def _reset_zoom(self):
        self._tab_widget.set_zoom_factor(1)
        self._update_zoom_label()

    def _update_zoom_label(self):
        percent = int(self._tab_widget.zoom_factor() * 100)
        self._zoom_label.setText("{}%".format(percent))

    def _download_requested(self, item):
        # Remove old downloads before opening a new one
        for old_download in self.statusBar().children():
            if type(old_download).__name__ == 'download_widget' and \
                old_download.state() != QWebEngineDownloadItem.DownloadInProgress:
                self.statusBar().removeWidget(old_download)
                del old_download

        item.accept()
        download_widget = download_widget(item)
        download_widget.removeRequested.connect(self._remove_download_requested,
                                               Qt.QueuedConnection)
        self.statusBar().addWidget(download_widget)

    def _remove_download_requested(self):
            download_widget = self.sender()
            self.statusBar().removeWidget(download_widget)
            del download_widget

    def _show_find(self):
        if self._find_tool_bar is None:
            self._find_tool_bar = FindToolBar()
            self._find_tool_bar.find.connect(self._tab_widget.find)
            self.addToolBar(Qt.BottomToolBarArea, self._find_tool_bar)
        else:
            self._find_tool_bar.show()
        self._find_tool_bar.focus_find()

    def write_bookmarks(self):
        self._bookmark_widget.write_bookmarks()