/****************************************************************************+
−
**+
−
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
−
** All rights reserved.+
−
** Contact: Nokia Corporation (qt-info@nokia.com)+
−
**+
−
** This file is part of the examples of the Qt Toolkit.+
−
**+
−
** $QT_BEGIN_LICENSE:LGPL$+
−
** No Commercial Usage+
−
** This file contains pre-release code and may not be distributed.+
−
** You may use this file in accordance with the terms and conditions+
−
** contained in the Technology Preview License Agreement accompanying+
−
** this package.+
−
**+
−
** 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 as published by the Free Software+
−
** Foundation and appearing in the file LICENSE.LGPL included in the+
−
** packaging of this file.  Please review the following information to+
−
** ensure the GNU Lesser General Public License version 2.1 requirements+
−
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
−
**+
−
** In addition, as a special exception, Nokia gives you certain additional+
−
** rights.  These rights are described in the Nokia Qt LGPL Exception+
−
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
−
**+
−
** If you have questions regarding the use of this file, please contact+
−
** Nokia at qt-info@nokia.com.+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
** $QT_END_LICENSE$+
−
**+
−
****************************************************************************/+
−
+
−
#ifndef ENVIRONMENT_H+
−
#define ENVIRONMENT_H+
−
+
−
#include <qobject.h>+
−
#include <qlist.h>+
−
#include <qhash.h>+
−
#include <QTimerEvent>+
−
#include <QMouseEvent>+
−
#include <QKeyEvent>+
−
#include <QScriptEngine>+
−
#include <QScriptable>+
−
class QContext2DCanvas;+
−
+
−
//! [0]+
−
class Environment : public QObject+
−
{+
−
    Q_OBJECT+
−
    Q_PROPERTY(QScriptValue document READ document)+
−
public:+
−
    Environment(QObject *parent = 0);+
−
    ~Environment();+
−
+
−
    QScriptValue document() const;+
−
+
−
    void addCanvas(QContext2DCanvas *canvas);+
−
    QContext2DCanvas *canvasByName(const QString &name) const;+
−
    QList<QContext2DCanvas*> canvases() const;+
−
+
−
    QScriptValue evaluate(const QString &code,+
−
                          const QString &fileName = QString());+
−
+
−
    QScriptValue toWrapper(QObject *object);+
−
+
−
    void handleEvent(QContext2DCanvas *canvas, QMouseEvent *e);+
−
    void handleEvent(QContext2DCanvas *canvas, QKeyEvent *e);+
−
+
−
    void reset();+
−
//! [0]+
−
+
−
    QScriptEngine *engine() const;+
−
+
−
//! [1]+
−
public slots:+
−
    int setInterval(const QScriptValue &expression, int delay);+
−
    void clearInterval(int timerId);+
−
+
−
    int setTimeout(const QScriptValue &expression, int delay);+
−
    void clearTimeout(int timerId);+
−
//! [1]+
−
+
−
//! [2]+
−
signals:+
−
    void scriptError(const QScriptValue &error);+
−
//! [2]+
−
+
−
protected:+
−
    void timerEvent(QTimerEvent *event);+
−
+
−
private:+
−
    QScriptValue eventHandler(QContext2DCanvas *canvas,+
−
                              const QString &type, QScriptValue *who);+
−
    QScriptValue newFakeDomEvent(const QString &type,+
−
                                 const QScriptValue &target);+
−
    void maybeEmitScriptError();+
−
+
−
    QScriptEngine *m_engine;+
−
    QScriptValue m_originalGlobalObject;+
−
    QScriptValue m_document;+
−
    QList<QContext2DCanvas*> m_canvases;+
−
    QHash<int, QScriptValue> m_intervalHash;+
−
    QHash<int, QScriptValue> m_timeoutHash;+
−
};+
−
+
−
//! [3]+
−
class Document : public QObject+
−
{+
−
    Q_OBJECT+
−
public:+
−
    Document(Environment *env);+
−
    ~Document();+
−
+
−
public slots:+
−
    QScriptValue getElementById(const QString &id) const;+
−
    QScriptValue getElementsByTagName(const QString &name) const;+
−
+
−
    // EventTarget+
−
    void addEventListener(const QString &type, const QScriptValue &listener,+
−
                          bool useCapture);+
−
};+
−
//! [3]+
−
+
−
class CanvasGradientPrototype : public QObject, public QScriptable+
−
{+
−
    Q_OBJECT+
−
protected:+
−
    CanvasGradientPrototype(QObject *parent = 0);+
−
public:+
−
    static void setup(QScriptEngine *engine);+
−
+
−
public slots:+
−
    void addColorStop(qreal offset, const QString &color);+
−
};+
−
+
−
#endif+
−