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| |
| #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; |
| bool hasIntervalTimers() const; |
| void triggerTimers(); |
| |
| //! [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 |