src/third_party/blink/Source/bindings/core/v8/V8LazyEventListener.h

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#ifndef V8LazyEventListener_h
#define V8LazyEventListener_h

#include "bindings/core/v8/V8AbstractEventListener.h"
#include "wtf/PassRefPtr.h"
#include "wtf/text/TextPosition.h"
#include <v8.h>

namespace blink {

class Event;
class Node;

// V8LazyEventListener is a wrapper for a JavaScript code string that is compiled and evaluated when an event is fired.
// A V8LazyEventListener is either a HTML or SVG event handler.
class V8LazyEventListener final : public V8AbstractEventListener {
public:
    static PassRefPtr<V8LazyEventListener> create(const AtomicString& functionName, const AtomicString& eventParameterName, const String& code, const String& sourceURL, const TextPosition& position, Node* node, v8::Isolate* isolate)
    {
        return adoptRef(new V8LazyEventListener(functionName, eventParameterName, code, sourceURL, position, node, isolate));
    }

    // V8LazyEventListener is always for the main world.
    virtual DOMWrapperWorld& world() const override { return DOMWrapperWorld::mainWorld(); }

    virtual void handleEvent(ExecutionContext*, Event*) override;

protected:
    virtual void prepareListenerObject(ExecutionContext*) override;

private:
    V8LazyEventListener(const AtomicString& functionName, const AtomicString& eventParameterName, const String& code, const String sourceURL, const TextPosition&, Node*, v8::Isolate*);

    virtual v8::Local<v8::Value> callListenerFunction(v8::Handle<v8::Value> jsEvent, Event*) override;

    // Needs to return true for all event handlers implemented in JavaScript so that
    // the SVG code does not add the event handler in both
    // SVGUseElement::buildShadowTree and again in
    // SVGUseElement::transferEventListenersToShadowTree
    virtual bool wasCreatedFromMarkup() const override { return true; }

    AtomicString m_functionName;
    AtomicString m_eventParameterName;
    String m_code;
    String m_sourceURL;
    Node* m_node;
    TextPosition m_position;
};

} // namespace blink

#endif // V8LazyEventListener_h