1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* 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, ExceptionState&);
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(); }
EventTarget* source(bool& isNull) const { isNull = !m_source; 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
|
