/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the demonstration applications of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef TABWIDGET_H+
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#define TABWIDGET_H+
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+
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#include <QtGui/QTabBar>+
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+
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#include <QtGui/QShortcut>+
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/*+
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    Tab bar with a few more features such as a context menu and shortcuts+
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 */+
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class TabBar : public QTabBar+
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{+
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    Q_OBJECT+
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+
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signals:+
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    void newTab();+
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    void cloneTab(int index);+
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    void closeTab(int index);+
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    void closeOtherTabs(int index);+
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    void reloadTab(int index);+
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    void reloadAllTabs();+
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    void tabMoveRequested(int fromIndex, int toIndex);+
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+
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public:+
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    TabBar(QWidget *parent = 0);+
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+
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protected:+
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    void mousePressEvent(QMouseEvent* event);+
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    void mouseMoveEvent(QMouseEvent* event);+
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+
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private slots:+
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    void selectTabAction();+
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    void cloneTab();+
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    void closeTab();+
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    void closeOtherTabs();+
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    void reloadTab();+
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    void contextMenuRequested(const QPoint &position);+
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+
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private:+
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    QList<QShortcut*> m_tabShortcuts;+
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    friend class TabWidget;+
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+
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    QPoint m_dragStartPos;+
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    int m_dragCurrentIndex;+
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};+
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+
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#include <QtWebKit/QWebPage>+
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+
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QT_BEGIN_NAMESPACE+
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class QAction;+
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QT_END_NAMESPACE+
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class WebView;+
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/*!+
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    A proxy object that connects a single browser action+
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    to one child webpage action at a time.+
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+
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    Example usage: used to keep the main window stop action in sync with+
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    the current tabs webview's stop action.+
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 */+
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class WebActionMapper : public QObject+
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{+
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    Q_OBJECT+
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+
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public:+
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    WebActionMapper(QAction *root, QWebPage::WebAction webAction, QObject *parent);+
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    QWebPage::WebAction webAction() const;+
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    void addChild(QAction *action);+
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    void updateCurrent(QWebPage *currentParent);+
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+
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private slots:+
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    void rootTriggered();+
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    void childChanged();+
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    void rootDestroyed();+
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    void currentDestroyed();+
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+
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private:+
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    QWebPage *m_currentParent;+
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    QAction *m_root;+
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    QWebPage::WebAction m_webAction;+
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};+
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+
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#include <QtCore/QUrl>+
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#include <QtGui/QTabWidget>+
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QT_BEGIN_NAMESPACE+
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class QCompleter;+
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class QLineEdit;+
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class QMenu;+
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class QStackedWidget;+
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QT_END_NAMESPACE+
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/*!+
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    TabWidget that contains WebViews and a stack widget of associated line edits.+
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+
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    Connects up the current tab's signals to this class's signal and uses WebActionMapper+
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    to proxy the actions.+
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 */+
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class TabWidget : public QTabWidget+
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{+
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    Q_OBJECT+
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+
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signals:+
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    // tab widget signals+
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    void loadPage(const QString &url);+
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    void tabsChanged();+
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    void lastTabClosed();+
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+
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    // current tab signals+
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    void setCurrentTitle(const QString &url);+
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    void showStatusBarMessage(const QString &message);+
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    void linkHovered(const QString &link);+
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    void loadProgress(int progress);+
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    void geometryChangeRequested(const QRect &geometry);+
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    void menuBarVisibilityChangeRequested(bool visible);+
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    void statusBarVisibilityChangeRequested(bool visible);+
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    void toolBarVisibilityChangeRequested(bool visible);+
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    void printRequested(QWebFrame *frame);+
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+
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public:+
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    TabWidget(QWidget *parent = 0);+
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    void clear();+
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    void addWebAction(QAction *action, QWebPage::WebAction webAction);+
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+
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    QAction *newTabAction() const;+
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    QAction *closeTabAction() const;+
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    QAction *recentlyClosedTabsAction() const;+
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    QAction *nextTabAction() const;+
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    QAction *previousTabAction() const;+
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+
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    QWidget *lineEditStack() const;+
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    QLineEdit *currentLineEdit() const;+
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    WebView *currentWebView() const;+
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    WebView *webView(int index) const;+
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    QLineEdit *lineEdit(int index) const;+
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    int webViewIndex(WebView *webView) const;+
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+
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    QByteArray saveState() const;+
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    bool restoreState(const QByteArray &state);+
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+
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protected:+
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    void mouseDoubleClickEvent(QMouseEvent *event);+
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    void contextMenuEvent(QContextMenuEvent *event);+
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    void mouseReleaseEvent(QMouseEvent *event);+
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+
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public slots:+
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    void loadUrlInCurrentTab(const QUrl &url);+
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    WebView *newTab(bool makeCurrent = true);+
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    void cloneTab(int index = -1);+
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    void closeTab(int index = -1);+
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    void closeOtherTabs(int index);+
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    void reloadTab(int index = -1);+
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    void reloadAllTabs();+
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    void nextTab();+
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    void previousTab();+
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+
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private slots:+
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    void currentChanged(int index);+
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    void aboutToShowRecentTabsMenu();+
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    void aboutToShowRecentTriggeredAction(QAction *action);+
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    void webViewLoadStarted();+
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    void webViewIconChanged();+
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    void webViewTitleChanged(const QString &title);+
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    void webViewUrlChanged(const QUrl &url);+
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    void lineEditReturnPressed();+
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    void windowCloseRequested();+
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    void moveTab(int fromIndex, int toIndex);+
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+
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private:+
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    QAction *m_recentlyClosedTabsAction;+
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    QAction *m_newTabAction;+
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    QAction *m_closeTabAction;+
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    QAction *m_nextTabAction;+
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    QAction *m_previousTabAction;+
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+
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    QMenu *m_recentlyClosedTabsMenu;+
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    static const int m_recentlyClosedTabsSize = 10;+
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    QList<QUrl> m_recentlyClosedTabs;+
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    QList<WebActionMapper*> m_actions;+
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+
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    QCompleter *m_lineEditCompleter;+
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    QStackedWidget *m_lineEdits;+
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    TabBar *m_tabBar;+
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};+
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+
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#endif // TABWIDGET_H+
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+
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