1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef __GINEBRA_GWEBPAGE_H__

    20 #define __GINEBRA_GWEBPAGE_H__

    21 

    22 #include <QDebug>

    23 #include <QWebPage>

    24 #include <QWebFrame>

    25 #include "ChromeWidget.h"

    26 

    27 namespace GVA {

    28 

    29   // ------------------------------

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

    31   class WebPageWrapper : public QWebPage {

    32     public:

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

    34         : QWebPage(parent),

    35           m_prefix(prefix) {

    36         qDebug() << "WebPageWrapper::WebPageWrapper";

    37       }

    38 

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

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

    41         qDebug() << m_prefix << ":";

    42         qDebug() << (const char*)QString("===\t%2:%3 %4")

    43               .arg(sourceID)

    44               .arg(lineNumber)

    45               .arg(message).toAscii();

    46       }

    47       QString m_prefix;

    48   };

    49   // ------------------------------

    50 

    51   class GWebPage : public QObject {

    52       Q_OBJECT

    53     public:

    54       GWebPage(QWebPage *page) {

    55         m_page = page;

    56       }

    57 

    58       Q_PROPERTY(QString name READ objectName)  // JS API

    59       Q_PROPERTY(QString title READ getTitle)  // JS API

    60       QString getTitle() {

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

    62       }

    63 

    64       QWebPage *page() { return m_page; }

    65       operator QWebPage *() { return m_page; }

    66 

    67       void dump() {

    68         qDebug() << "GWebPage::dump: " << this;

    69         qDebug() << "   page=" << (m_page ? m_page : 0);

    70       }

    71 

    72     protected:

    73       QWebPage *m_page;

    74   };

    75 

    76   // ------------------------------

    77   /*! \ingroup JavascriptAPI

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

    79    *

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

    81    * \code

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

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

    84    * \endcode

    85    */

    86   class GSuperWebPage : public GWebPage {

    87       Q_OBJECT

    88     public:

    89       GSuperWebPage(WebPageWrapper *page, ChromeWidget *chromeWidget)

    90         : GWebPage(page),

    91           m_chromeWidget(chromeWidget)

    92       {

    93         if(!m_page) {

    94           m_page = new WebPageWrapper(this, "Superpage javascript error");

    95         }

    96         qDebug() << "GSuperWebPage::GSuperWebPage: page=" << GWebPage::page();

    97         connect(GWebPage::page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()), this, SLOT(onJavaScriptWindowObjectCleared()));

    98       }

    99     public slots:

   100       void load(const QString &url) {   // JS API

   101         qDebug() << "GSuperWebPage::load: " << url;

   102         page()->mainFrame()->load(url);

   103       }

   104     private slots:

   105       void onJavaScriptWindowObjectCleared() {

   106         qDebug() << "GSuperWebPage::onJavaScriptWindowObjectCleared: " << objectName();

   107         if(m_chromeWidget)

   108           m_chromeWidget->exportJSObjectsToPage(m_page);

   109       }

   110 

   111     private:

   112       ChromeWidget *m_chromeWidget;  // not owned

   113   };

   114 }

   115 

   116 #endif // __GINEBRA_GWEBPAGE_H__