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| 1 /* | |
| 2 * Copyright (C) 2007 Henry Mason (hmason@mac.com) | |
| 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserv
ed. | |
| 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 "bindings/core/v8/SerializedScriptValue.h" | |
| 32 #include "core/events/Event.h" | |
| 33 #include "core/events/EventTarget.h" | |
| 34 #include "core/dom/MessagePort.h" | |
| 35 #include "core/frame/LocalDOMWindow.h" | |
| 36 #include "wtf/ArrayBuffer.h" | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 struct MessageEventInit : public EventInit { | |
| 41 MessageEventInit(); | |
| 42 | |
| 43 String origin; | |
| 44 String lastEventId; | |
| 45 RefPtrWillBeMember<EventTarget> source; | |
| 46 MessagePortArray ports; | |
| 47 }; | |
| 48 | |
| 49 class MessageEvent FINAL : public Event { | |
| 50 DEFINE_WRAPPERTYPEINFO(); | |
| 51 public: | |
| 52 static PassRefPtrWillBeRawPtr<MessageEvent> create() | |
| 53 { | |
| 54 return adoptRefWillBeNoop(new MessageEvent); | |
| 55 } | |
| 56 static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtrWillBeRawPtr<Me
ssagePortArray> ports, const String& origin = String(), const String& lastEventI
d = String(), PassRefPtrWillBeRawPtr<EventTarget> source = nullptr) | |
| 57 { | |
| 58 return adoptRefWillBeNoop(new MessageEvent(origin, lastEventId, source,
ports)); | |
| 59 } | |
| 60 static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtrWillBeRawPtr<Me
ssagePortArray> ports, PassRefPtr<SerializedScriptValue> data, const String& ori
gin = String(), const String& lastEventId = String(), PassRefPtrWillBeRawPtr<Eve
ntTarget> source = nullptr) | |
| 61 { | |
| 62 return adoptRefWillBeNoop(new MessageEvent(data, origin, lastEventId, so
urce, ports)); | |
| 63 } | |
| 64 static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtr<MessagePortCha
nnelArray> channels, PassRefPtr<SerializedScriptValue> data, const String& origi
n = String(), const String& lastEventId = String(), PassRefPtrWillBeRawPtr<Event
Target> source = nullptr) | |
| 65 { | |
| 66 return adoptRefWillBeNoop(new MessageEvent(data, origin, lastEventId, so
urce, channels)); | |
| 67 } | |
| 68 static PassRefPtrWillBeRawPtr<MessageEvent> create(const String& data, const
String& origin = String()) | |
| 69 { | |
| 70 return adoptRefWillBeNoop(new MessageEvent(data, origin)); | |
| 71 } | |
| 72 static PassRefPtrWillBeRawPtr<MessageEvent> create(PassRefPtr<ArrayBuffer> d
ata, const String& origin = String()) | |
| 73 { | |
| 74 return adoptRefWillBeNoop(new MessageEvent(data, origin)); | |
| 75 } | |
| 76 static PassRefPtrWillBeRawPtr<MessageEvent> create(const AtomicString& type,
const MessageEventInit& initializer, ExceptionState&); | |
| 77 virtual ~MessageEvent(); | |
| 78 | |
| 79 void initMessageEvent(const AtomicString& type, bool canBubble, bool cancela
ble, const String& origin, const String& lastEventId, LocalDOMWindow* source, Pa
ssOwnPtrWillBeRawPtr<MessagePortArray>); | |
| 80 void initMessageEvent(const AtomicString& type, bool canBubble, bool cancela
ble, PassRefPtr<SerializedScriptValue> data, const String& origin, const String&
lastEventId, LocalDOMWindow* source, PassOwnPtrWillBeRawPtr<MessagePortArray>); | |
| 81 | |
| 82 const String& origin() const { return m_origin; } | |
| 83 const String& lastEventId() const { return m_lastEventId; } | |
| 84 EventTarget* source() const { return m_source.get(); } | |
| 85 MessagePortArray ports() const { return m_ports ? *m_ports : MessagePortArra
y(); } | |
| 86 MessagePortChannelArray* channels() const { return m_channels ? m_channels.g
et() : 0; } | |
| 87 | |
| 88 virtual const AtomicString& interfaceName() const OVERRIDE; | |
| 89 | |
| 90 enum DataType { | |
| 91 DataTypeScriptValue, | |
| 92 DataTypeSerializedScriptValue, | |
| 93 DataTypeString, | |
| 94 DataTypeArrayBuffer | |
| 95 }; | |
| 96 DataType dataType() const { return m_dataType; } | |
| 97 SerializedScriptValue* dataAsSerializedScriptValue() const { ASSERT(m_dataTy
pe == DataTypeScriptValue || m_dataType == DataTypeSerializedScriptValue); retur
n m_dataAsSerializedScriptValue.get(); } | |
| 98 String dataAsString() const { ASSERT(m_dataType == DataTypeString); return m
_dataAsString; } | |
| 99 ArrayBuffer* dataAsArrayBuffer() const { ASSERT(m_dataType == DataTypeArrayB
uffer); return m_dataAsArrayBuffer.get(); } | |
| 100 | |
| 101 void setSerializedData(PassRefPtr<SerializedScriptValue> data) | |
| 102 { | |
| 103 ASSERT(!m_dataAsSerializedScriptValue); | |
| 104 m_dataAsSerializedScriptValue = data; | |
| 105 } | |
| 106 | |
| 107 void entangleMessagePorts(ExecutionContext*); | |
| 108 | |
| 109 virtual void trace(Visitor*) OVERRIDE; | |
| 110 | |
| 111 virtual v8::Handle<v8::Object> wrap(v8::Handle<v8::Object> creationContext,
v8::Isolate*) OVERRIDE; | |
| 112 | |
| 113 private: | |
| 114 MessageEvent(); | |
| 115 MessageEvent(const AtomicString&, const MessageEventInit&); | |
| 116 MessageEvent(const String& origin, const String& lastEventId, PassRefPtrWill
BeRawPtr<EventTarget> source, PassOwnPtrWillBeRawPtr<MessagePortArray>); | |
| 117 MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, c
onst String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtr
WillBeRawPtr<MessagePortArray>); | |
| 118 MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, c
onst String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtr
<MessagePortChannelArray>); | |
| 119 | |
| 120 MessageEvent(const String& data, const String& origin); | |
| 121 MessageEvent(PassRefPtr<ArrayBuffer> data, const String& origin); | |
| 122 | |
| 123 DataType m_dataType; | |
| 124 RefPtr<SerializedScriptValue> m_dataAsSerializedScriptValue; | |
| 125 String m_dataAsString; | |
| 126 RefPtr<ArrayBuffer> m_dataAsArrayBuffer; | |
| 127 String m_origin; | |
| 128 String m_lastEventId; | |
| 129 RefPtrWillBeMember<EventTarget> m_source; | |
| 130 // m_ports are the MessagePorts in an engtangled state, and m_channels are | |
| 131 // the MessageChannels in a disentangled state. Only one of them can be | |
| 132 // non-empty at a time. entangleMessagePorts() moves between the states. | |
| 133 OwnPtrWillBeMember<MessagePortArray> m_ports; | |
| 134 OwnPtr<MessagePortChannelArray> m_channels; | |
| 135 }; | |
| 136 | |
| 137 } // namespace blink | |
| 138 | |
| 139 #endif // MessageEvent_h | |
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