1 /* 2 * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 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 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef V8LazyEventListener_h 32 #define V8LazyEventListener_h 33 34 #include "bindings/v8/V8AbstractEventListener.h" 35 #include <v8.h> 36 #include "wtf/PassRefPtr.h" 37 #include "wtf/text/TextPosition.h" 38 #include "wtf/text/WTFString.h" 39 40 namespace WebCore { 41 42 class Event; 43 class Frame; 44 class HTMLFormElement; 45 class Node; 46 47 // V8LazyEventListener is a wrapper for a JavaScript code string that is compiled and evaluated when an event is fired. 48 // A V8LazyEventListener is either a HTML or SVG event handler. 49 class V8LazyEventListener : public V8AbstractEventListener { 50 public: 51 static PassRefPtr<V8LazyEventListener> create(const AtomicString& functionName, const AtomicString& eventParameterName, const String& code, const String& sourceURL, const TextPosition& position, Node* node, v8::Isolate* isolate) 52 { 53 return adoptRef(new V8LazyEventListener(functionName, eventParameterName, code, sourceURL, position, node, isolate)); 54 } 55 56 virtual bool isLazy() const { return true; } 57 58 protected: 59 virtual void prepareListenerObject(ExecutionContext*); 60 61 private: 62 V8LazyEventListener(const AtomicString& functionName, const AtomicString& eventParameterName, const String& code, const String sourceURL, const TextPosition&, Node*, v8::Isolate*); 63 64 virtual v8::Local<v8::Value> callListenerFunction(ExecutionContext*, v8::Handle<v8::Value> jsEvent, Event*); 65 66 // Needs to return true for all event handlers implemented in JavaScript so that 67 // the SVG code does not add the event handler in both 68 // SVGUseElement::buildShadowTree and again in 69 // SVGUseElement::transferEventListenersToShadowTree 70 virtual bool wasCreatedFromMarkup() const { return true; } 71 72 AtomicString m_functionName; 73 AtomicString m_eventParameterName; 74 String m_code; 75 String m_sourceURL; 76 Node* m_node; 77 TextPosition m_position; 78 }; 79 80 } // namespace WebCore 81 82 #endif // V8LazyEventListener_h 83
