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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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42 | 42 |
43 class Event; | 43 class Event; |
44 class ExceptionState; | 44 class ExceptionState; |
45 class Frame; | 45 class Frame; |
46 class MessagePort; | 46 class MessagePort; |
47 class ScriptExecutionContext; | 47 class ScriptExecutionContext; |
48 | 48 |
49 // The overwhelmingly common case is sending a single port, so handle that effic
iently with an inline buffer of size 1. | 49 // The overwhelmingly common case is sending a single port, so handle that effic
iently with an inline buffer of size 1. |
50 typedef Vector<RefPtr<MessagePort>, 1> MessagePortArray; | 50 typedef Vector<RefPtr<MessagePort>, 1> MessagePortArray; |
51 | 51 |
52 class MessagePort : public RefCounted<MessagePort>, public ScriptWrappable, publ
ic EventTarget { | 52 class MessagePort : public RefCounted<MessagePort>, public ScriptWrappable, publ
ic EventTargetWithInlineData { |
53 public: | 53 public: |
54 static PassRefPtr<MessagePort> create(ScriptExecutionContext& scriptExecutio
nContext) { return adoptRef(new MessagePort(scriptExecutionContext)); } | 54 static PassRefPtr<MessagePort> create(ScriptExecutionContext& scriptExecutio
nContext) { return adoptRef(new MessagePort(scriptExecutionContext)); } |
55 virtual ~MessagePort(); | 55 virtual ~MessagePort(); |
56 | 56 |
57 void postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePor
tArray*, ExceptionState&); | 57 void postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePor
tArray*, ExceptionState&); |
58 | 58 |
59 void start(); | 59 void start(); |
60 void close(); | 60 void close(); |
61 | 61 |
62 void entangle(PassRefPtr<MessagePortChannel>); | 62 void entangle(PassRefPtr<MessagePortChannel>); |
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95 bool isEntangled() { return !m_closed && !isNeutered(); } | 95 bool isEntangled() { return !m_closed && !isNeutered(); } |
96 | 96 |
97 // A port gets neutered when it is transferred to a new owner via postMessag
e(). | 97 // A port gets neutered when it is transferred to a new owner via postMessag
e(). |
98 bool isNeutered() { return !m_entangledChannel; } | 98 bool isNeutered() { return !m_entangledChannel; } |
99 | 99 |
100 private: | 100 private: |
101 explicit MessagePort(ScriptExecutionContext&); | 101 explicit MessagePort(ScriptExecutionContext&); |
102 | 102 |
103 virtual void refEventTarget() OVERRIDE { ref(); } | 103 virtual void refEventTarget() OVERRIDE { ref(); } |
104 virtual void derefEventTarget() OVERRIDE { deref(); } | 104 virtual void derefEventTarget() OVERRIDE { deref(); } |
105 virtual EventTargetData* eventTargetData() OVERRIDE; | |
106 virtual EventTargetData* ensureEventTargetData() OVERRIDE; | |
107 | 105 |
108 RefPtr<MessagePortChannel> m_entangledChannel; | 106 RefPtr<MessagePortChannel> m_entangledChannel; |
109 | 107 |
110 bool m_started; | 108 bool m_started; |
111 bool m_closed; | 109 bool m_closed; |
112 | 110 |
113 ScriptExecutionContext* m_scriptExecutionContext; | 111 ScriptExecutionContext* m_scriptExecutionContext; |
114 EventTargetData m_eventTargetData; | |
115 }; | 112 }; |
116 | 113 |
117 } // namespace WebCore | 114 } // namespace WebCore |
118 | 115 |
119 #endif // MessagePort_h | 116 #endif // MessagePort_h |
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