1/*
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3 *
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5 * modification, are permitted provided that the following conditions are
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9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
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16 * this software without specific prior written permission.
17 *
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29 */
30
31#ifndef V8LazyEventListener_h
32#define V8LazyEventListener_h
33
34#include "PlatformString.h"
35#include "V8AbstractEventListener.h"
36#include <v8.h>
37#include <wtf/text/TextPosition.h>
38#include <wtf/PassRefPtr.h>
39
40namespace WebCore {
41
42    class Event;
43    class Frame;
44
45    // V8LazyEventListener is a wrapper for a JavaScript code string that is compiled and evaluated when an event is fired.
46    // A V8LazyEventListener is always a HTML event handler.
47    class V8LazyEventListener : public V8AbstractEventListener {
48    public:
49        static PassRefPtr<V8LazyEventListener> create(const String& functionName, bool isSVGEvent, const String& code, const String& sourceURL, const TextPosition0& position, const WorldContextHandle& worldContext)
50        {
51            return adoptRef(new V8LazyEventListener(functionName, isSVGEvent, code, sourceURL, position, worldContext));
52        }
53
54        virtual bool isLazy() const { return true; }
55
56    protected:
57        virtual void prepareListenerObject(ScriptExecutionContext*);
58
59    private:
60        V8LazyEventListener(const String& functionName, bool isSVGEvent, const String& code, const String sourceURL, const TextPosition0& position, const WorldContextHandle& worldContext);
61
62        virtual v8::Local<v8::Value> callListenerFunction(ScriptExecutionContext*, v8::Handle<v8::Value> jsEvent, Event*);
63
64        // Needs to return true for all event handlers implemented in JavaScript so that
65        // the SVG code does not add the event handler in both
66        // SVGUseElement::buildShadowTree and again in
67        // SVGUseElement::transferEventListenersToShadowTree
68        virtual bool wasCreatedFromMarkup() const { return true; }
69
70        String m_functionName;
71        bool m_isSVGEvent;
72        String m_code;
73        String m_sourceURL;
74        TextPosition0 m_position;
75    };
76
77} // namespace WebCore
78
79#endif // V8LazyEventListener_h
80