1/* 2 * Copyright (C) 2007 Henry Mason (hmason@mac.com) 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28#ifndef MessageEvent_h 29#define MessageEvent_h 30 31#include "Blob.h" 32#include "DOMWindow.h" 33#include "Event.h" 34#include "MessagePort.h" 35#include "ScriptValue.h" 36#include "SerializedScriptValue.h" 37#include <wtf/ArrayBuffer.h> 38 39namespace WebCore { 40 41class DOMWindow; 42 43struct MessageEventInit : public EventInit { 44 MessageEventInit(); 45 46 ScriptValue data; 47 String origin; 48 String lastEventId; 49 RefPtr<DOMWindow> source; 50 MessagePortArray ports; 51}; 52 53class MessageEvent : public Event { 54public: 55 static PassRefPtr<MessageEvent> create() 56 { 57 return adoptRef(new MessageEvent); 58 } 59 static PassRefPtr<MessageEvent> create(PassOwnPtr<MessagePortArray> ports, const ScriptValue& data = ScriptValue(), const String& origin = "", const String& lastEventId = "", PassRefPtr<DOMWindow> source = 0) 60 { 61 return adoptRef(new MessageEvent(data, origin, lastEventId, source, ports)); 62 } 63 static PassRefPtr<MessageEvent> create(PassOwnPtr<MessagePortArray> ports, PassRefPtr<SerializedScriptValue> data, const String& origin = "", const String& lastEventId = "", PassRefPtr<DOMWindow> source = 0) 64 { 65 return adoptRef(new MessageEvent(data, origin, lastEventId, source, ports)); 66 } 67 static PassRefPtr<MessageEvent> create(const String& data, const String& origin = "") 68 { 69 return adoptRef(new MessageEvent(data, origin)); 70 } 71 static PassRefPtr<MessageEvent> create(PassRefPtr<Blob> data, const String& origin = "") 72 { 73 return adoptRef(new MessageEvent(data, origin)); 74 } 75 static PassRefPtr<MessageEvent> create(PassRefPtr<ArrayBuffer> data, const String& origin = "") 76 { 77 return adoptRef(new MessageEvent(data, origin)); 78 } 79 static PassRefPtr<MessageEvent> create(const AtomicString& type, const MessageEventInit& initializer) 80 { 81 return adoptRef(new MessageEvent(type, initializer)); 82 } 83 virtual ~MessageEvent(); 84 85 void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, const ScriptValue& data, const String& origin, const String& lastEventId, DOMWindow* source, PassOwnPtr<MessagePortArray>); 86 void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, DOMWindow* source, PassOwnPtr<MessagePortArray>); 87 88 const String& origin() const { return m_origin; } 89 const String& lastEventId() const { return m_lastEventId; } 90 DOMWindow* source() const { return m_source.get(); } 91 MessagePortArray ports() const { return m_ports ? *m_ports : MessagePortArray(); } 92 93 // FIXME: Remove this when we have custom ObjC binding support. 94 SerializedScriptValue* data() const; 95 96 // Needed for Objective-C bindings (see bug 28774). 97 MessagePort* messagePort(); 98 void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, DOMWindow* source, MessagePort*); 99 100 virtual const AtomicString& interfaceName() const; 101 102 enum DataType { 103 DataTypeScriptValue, 104 DataTypeSerializedScriptValue, 105 DataTypeString, 106 DataTypeBlob, 107 DataTypeArrayBuffer 108 }; 109 DataType dataType() const { return m_dataType; } 110 const ScriptValue& dataAsScriptValue() const { ASSERT(m_dataType == DataTypeScriptValue); return m_dataAsScriptValue; } 111 PassRefPtr<SerializedScriptValue> dataAsSerializedScriptValue() const { ASSERT(m_dataType == DataTypeSerializedScriptValue); return m_dataAsSerializedScriptValue; } 112 String dataAsString() const { ASSERT(m_dataType == DataTypeString); return m_dataAsString; } 113 Blob* dataAsBlob() const { ASSERT(m_dataType == DataTypeBlob); return m_dataAsBlob.get(); } 114 ArrayBuffer* dataAsArrayBuffer() const { ASSERT(m_dataType == DataTypeArrayBuffer); return m_dataAsArrayBuffer.get(); } 115 116private: 117 MessageEvent(); 118 MessageEvent(const AtomicString&, const MessageEventInit&); 119 MessageEvent(const ScriptValue& data, const String& origin, const String& lastEventId, PassRefPtr<DOMWindow> source, PassOwnPtr<MessagePortArray>); 120 MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtr<DOMWindow> source, PassOwnPtr<MessagePortArray>); 121 122 explicit MessageEvent(const String& data, const String& origin); 123 explicit MessageEvent(PassRefPtr<Blob> data, const String& origin); 124 explicit MessageEvent(PassRefPtr<ArrayBuffer> data, const String& origin); 125 126 DataType m_dataType; 127 ScriptValue m_dataAsScriptValue; 128 RefPtr<SerializedScriptValue> m_dataAsSerializedScriptValue; 129 String m_dataAsString; 130 RefPtr<Blob> m_dataAsBlob; 131 RefPtr<ArrayBuffer> m_dataAsArrayBuffer; 132 String m_origin; 133 String m_lastEventId; 134 RefPtr<DOMWindow> m_source; 135 OwnPtr<MessagePortArray> m_ports; 136}; 137 138} // namespace WebCore 139 140#endif // MessageEvent_h 141