| /* |
| * Copyright (C) 2007 Henry Mason (hmason@mac.com) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef MessageEvent_h |
| #define MessageEvent_h |
| |
| #include "bindings/v8/SerializedScriptValue.h" |
| #include "core/events/Event.h" |
| #include "core/events/EventTarget.h" |
| #include "core/dom/MessagePort.h" |
| #include "core/fileapi/Blob.h" |
| #include "core/frame/DOMWindow.h" |
| #include "wtf/ArrayBuffer.h" |
| |
| namespace WebCore { |
| |
| struct MessageEventInit : public EventInit { |
| MessageEventInit(); |
| |
| String origin; |
| String lastEventId; |
| RefPtr<EventTarget> source; |
| MessagePortArray ports; |
| }; |
| |
| class MessageEvent : public Event { |
| public: |
| static PassRefPtr<MessageEvent> create() |
| { |
| return adoptRef(new MessageEvent); |
| } |
| static PassRefPtr<MessageEvent> create(PassOwnPtr<MessagePortArray> ports, const String& origin = String(), const String& lastEventId = String(), PassRefPtr<EventTarget> source = 0) |
| { |
| return adoptRef(new MessageEvent(origin, lastEventId, source, ports)); |
| } |
| static PassRefPtr<MessageEvent> create(PassOwnPtr<MessagePortArray> ports, PassRefPtr<SerializedScriptValue> data, const String& origin = String(), const String& lastEventId = String(), PassRefPtr<EventTarget> source = 0) |
| { |
| return adoptRef(new MessageEvent(data, origin, lastEventId, source, ports)); |
| } |
| static PassRefPtr<MessageEvent> create(PassOwnPtr<MessagePortChannelArray> channels, PassRefPtr<SerializedScriptValue> data, const String& origin = String(), const String& lastEventId = String(), PassRefPtr<EventTarget> source = 0) |
| { |
| return adoptRef(new MessageEvent(data, origin, lastEventId, source, channels)); |
| } |
| static PassRefPtr<MessageEvent> create(const String& data, const String& origin = String()) |
| { |
| return adoptRef(new MessageEvent(data, origin)); |
| } |
| static PassRefPtr<MessageEvent> create(PassRefPtr<Blob> data, const String& origin = String()) |
| { |
| return adoptRef(new MessageEvent(data, origin)); |
| } |
| static PassRefPtr<MessageEvent> create(PassRefPtr<ArrayBuffer> data, const String& origin = String()) |
| { |
| return adoptRef(new MessageEvent(data, origin)); |
| } |
| static PassRefPtr<MessageEvent> create(const AtomicString& type, const MessageEventInit& initializer) |
| { |
| return adoptRef(new MessageEvent(type, initializer)); |
| } |
| virtual ~MessageEvent(); |
| |
| void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, const String& origin, const String& lastEventId, DOMWindow* source, PassOwnPtr<MessagePortArray>); |
| void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, DOMWindow* source, PassOwnPtr<MessagePortArray>); |
| |
| const String& origin() const { return m_origin; } |
| const String& lastEventId() const { return m_lastEventId; } |
| EventTarget* source() const { return m_source.get(); } |
| MessagePortArray ports() const { return m_ports ? *m_ports : MessagePortArray(); } |
| MessagePortChannelArray* channels() const { return m_channels ? m_channels.get() : 0; } |
| |
| virtual const AtomicString& interfaceName() const; |
| |
| enum DataType { |
| DataTypeScriptValue, |
| DataTypeSerializedScriptValue, |
| DataTypeString, |
| DataTypeBlob, |
| DataTypeArrayBuffer |
| }; |
| DataType dataType() const { return m_dataType; } |
| SerializedScriptValue* dataAsSerializedScriptValue() const { ASSERT(m_dataType == DataTypeScriptValue || m_dataType == DataTypeSerializedScriptValue); return m_dataAsSerializedScriptValue.get(); } |
| String dataAsString() const { ASSERT(m_dataType == DataTypeString); return m_dataAsString; } |
| Blob* dataAsBlob() const { ASSERT(m_dataType == DataTypeBlob); return m_dataAsBlob.get(); } |
| ArrayBuffer* dataAsArrayBuffer() const { ASSERT(m_dataType == DataTypeArrayBuffer); return m_dataAsArrayBuffer.get(); } |
| |
| void setSerializedData(PassRefPtr<SerializedScriptValue> data) |
| { |
| ASSERT(!m_dataAsSerializedScriptValue); |
| m_dataAsSerializedScriptValue = data; |
| } |
| |
| void entangleMessagePorts(ExecutionContext*); |
| |
| private: |
| MessageEvent(); |
| MessageEvent(const AtomicString&, const MessageEventInit&); |
| MessageEvent(const String& origin, const String& lastEventId, PassRefPtr<EventTarget> source, PassOwnPtr<MessagePortArray>); |
| MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtr<EventTarget> source, PassOwnPtr<MessagePortArray>); |
| MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtr<EventTarget> source, PassOwnPtr<MessagePortChannelArray>); |
| |
| explicit MessageEvent(const String& data, const String& origin); |
| explicit MessageEvent(PassRefPtr<Blob> data, const String& origin); |
| explicit MessageEvent(PassRefPtr<ArrayBuffer> data, const String& origin); |
| |
| DataType m_dataType; |
| RefPtr<SerializedScriptValue> m_dataAsSerializedScriptValue; |
| String m_dataAsString; |
| RefPtr<Blob> m_dataAsBlob; |
| RefPtr<ArrayBuffer> m_dataAsArrayBuffer; |
| String m_origin; |
| String m_lastEventId; |
| RefPtr<EventTarget> m_source; |
| // m_ports are the MessagePorts in an engtangled state, and m_channels are |
| // the MessageChannels in a disentangled state. Only one of them can be |
| // non-empty at a time. entangleMessagePorts() moves between the states. |
| OwnPtr<MessagePortArray> m_ports; |
| OwnPtr<MessagePortChannelArray> m_channels; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // MessageEvent_h |