webview.h Example File | Qt WebKit Examples 5.4

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- webview.h Example File
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# webview.h Example File

webkitwidgets/browser/webview.h

    /****************************************************************************
    **
    ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the demonstration applications of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** Commercial License Usage
    ** Licensees holding valid commercial Qt licenses may use this file in
    ** accordance with the commercial license agreement provided with the
    ** Software or, alternatively, in accordance with the terms contained in
    ** a written agreement between you and Digia. For licensing terms and
    ** conditions see http://qt.digia.com/licensing. For further information
    ** use the contact form at http://qt.digia.com/contact-us.
    **
    ** GNU Lesser General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU Lesser
    ** General Public License version 2.1 or version 3 as published by the Free
    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
    ** following information to ensure the GNU Lesser General Public License
    ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
    ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
    ** In addition, as a special exception, Digia gives you certain additional
    ** rights. These rights are described in the Digia Qt LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    #ifndef WEBVIEW_H
    #define WEBVIEW_H

    #include <QWebView>

    class QAuthenticator;
    class QMouseEvent;
    class QNetworkProxy;
    class QNetworkReply;
    class QSslError;

    class BrowserMainWindow;
    class WebPage : public QWebPage {
        Q_OBJECT

    signals:
        void loadingUrl(const QUrl &url);

    public:
        WebPage(QObject *parent = 0);
        BrowserMainWindow *mainWindow();

    protected:
        bool acceptNavigationRequest(QWebFrame *frame, const QNetworkRequest &request, NavigationType type);
        QWebPage *createWindow(QWebPage::WebWindowType type);
    #if !defined(QT_NO_UITOOLS)
        QObject *createPlugin(const QString &classId, const QUrl &url, const QStringList &paramNames, const QStringList &paramValues);
    #endif

    private slots:
        void handleUnsupportedContent(QNetworkReply *reply);

    private:
        friend class WebView;

        // set the webview mousepressedevent
        Qt::KeyboardModifiers m_keyboardModifiers;
        Qt::MouseButtons m_pressedButtons;
        bool m_openInNewTab;
        QUrl m_loadingUrl;
    };

    class WebView : public QWebView {
        Q_OBJECT

    public:
        WebView(QWidget *parent = 0);
        WebPage *webPage() const { return m_page; }

        void loadUrl(const QUrl &url);
        QUrl url() const;

        QString lastStatusBarText() const;
        inline int progress() const { return m_progress; }

    protected:
        void mousePressEvent(QMouseEvent *event);
        void mouseReleaseEvent(QMouseEvent *event);
        void contextMenuEvent(QContextMenuEvent *event);
        void wheelEvent(QWheelEvent *event);

    private slots:
        void setProgress(int progress);
        void loadFinished();
        void setStatusBarText(const QString &string);
        void downloadRequested(const QNetworkRequest &request);
        void openLinkInNewTab();

    private:
        QString m_statusBarText;
        QUrl m_initialUrl;
        int m_progress;
        WebPage *m_page;
    };

    #endif