*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not,

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

* Description:

#include "WebViewEventContext.h"

// ------------------------------

// Simple wrapper class for QWebPage to allow interception of javascript errors.

class WebPageWrapper : public QWebPage {

public:

    WebPageWrapper(QObject *parent, const QString &prefix);

    // Called when javascript errors are hit in the chrome page.

    virtual void javaScriptConsoleMessage(const QString & message, int lineNumber, const QString & sourceID);

    QString m_prefix;

};

// ------------------------------

class GWebPage : public QObject {

    Q_OBJECT

public:

    GWebPage(QWebPage *page) {

        m_page = page;  // take ownership

    }

    virtual ~GWebPage() {

        delete m_page;

    }

    Q_PROPERTY(QString name READ objectName)  // JS API

    Q_PROPERTY(QString title READ getTitle)  // JS API

    QString getTitle() {

        return m_page->mainFrame()->title();

    }

    QWebPage *page() { return m_page; }

    operator QWebPage *() { return m_page; }

    void dump() {

    }

signals:

    /// Triggered by a QContextEvent such as a long-press or right mouse button click.

    void contextEvent(::WebViewEventContext *context);

protected slots:

    void onContextEvent(::WebViewEventContext *context) { emit contextEvent(context); }

protected:

    QWebPage *m_page;  // owned

    friend class GWebContentViewWidget;

};

// ------------------------------

/*! \ingroup JavascriptAPI

* \brief A content view that has full access to the Javascript APIs.

*

* Example code to load an HTML file into a super page:

* \code

* window.views.WebView.createSuperPage("BookmarkView", true);

* window.views.WebView.BookmarkView.load("./chrome/BookmarkView.html");

* \endcode

*/

class GSuperWebPage : public GWebPage {

    Q_OBJECT

public:

    GSuperWebPage(WebPageWrapper *page, ChromeWidget *chromeWidget);

public slots:

    void load(const QString &url);

signals:

    /*!

    * Triggered by the javascript code within the superpage when it wants a context menu to be displayed by

    * the chrome's javascript.

    *

    * The normal chain of events is:

    * \li User executes a long-press (or RMB click).

    * \li Qt sends QContextMenuEvent from QWebView.

    * \li GWebContentViewWidget::contextMenuEvent is called, which passes the event to the superpage

    * (if one is currently displayed).

    * \li The superpage emits \c contextEvent().

    * \li The context event handler in the superpage's javascript determines what was clicked on

    * and emits \c showContextMenu() from the superpage.

    * \li Javascript \c showContextMenu signal handler in the chrome is called which then displays the context menu.

    */

    void showContextMenu(QVariant obj);

private slots:

    void onJavaScriptWindowObjectCleared();

private:

    ChromeWidget *m_chromeWidget;  // not owned

};