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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// An implementation of WebSocketStreamHandle.
#include "webkit/glue/websocketstreamhandle_impl.h"
#include <vector>
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSocketStreamHandleClient.h"
#include "webkit/glue/websocketstreamhandle_bridge.h"
#include "webkit/glue/websocketstreamhandle_delegate.h"
namespace webkit_glue {
// WebSocketStreamHandleImpl::Context -----------------------------------------
class WebSocketStreamHandleImpl::Context
: public base::RefCounted<Context>,
public WebSocketStreamHandleDelegate {
public:
explicit Context(WebSocketStreamHandleImpl* handle);
WebKit::WebSocketStreamHandleClient* client() const { return client_; }
void set_client(WebKit::WebSocketStreamHandleClient* client) {
client_ = client;
}
void Connect(const WebKit::WebURL& url);
bool Send(const WebKit::WebData& data);
void Close();
// Must be called before |handle_| or |client_| is deleted.
// Once detached, it never calls |client_| back.
void Detach();
// WebSocketStreamHandleDelegate methods:
virtual void DidOpenStream(WebKit::WebSocketStreamHandle*, int);
virtual void DidSendData(WebKit::WebSocketStreamHandle*, int);
virtual void DidReceiveData(
WebKit::WebSocketStreamHandle*, const char*, int);
virtual void DidClose(WebKit::WebSocketStreamHandle*);
private:
friend class base::RefCounted<Context>;
~Context() {
DCHECK(!handle_);
DCHECK(!client_);
DCHECK(!bridge_);
}
WebSocketStreamHandleImpl* handle_;
WebKit::WebSocketStreamHandleClient* client_;
// |bridge_| is alive from Connect to DidClose, so Context must be alive
// in the time period.
scoped_refptr<WebSocketStreamHandleBridge> bridge_;
DISALLOW_COPY_AND_ASSIGN(Context);
};
WebSocketStreamHandleImpl::Context::Context(WebSocketStreamHandleImpl* handle)
: handle_(handle),
client_(NULL),
bridge_(NULL) {
}
void WebSocketStreamHandleImpl::Context::Connect(const WebKit::WebURL& url) {
VLOG(1) << "Connect url=" << url;
DCHECK(!bridge_);
bridge_ = WebSocketStreamHandleBridge::Create(handle_, this);
AddRef(); // Will be released by DidClose().
bridge_->Connect(url);
}
bool WebSocketStreamHandleImpl::Context::Send(const WebKit::WebData& data) {
VLOG(1) << "Send data.size=" << data.size();
DCHECK(bridge_);
return bridge_->Send(
std::vector<char>(data.data(), data.data() + data.size()));
}
void WebSocketStreamHandleImpl::Context::Close() {
VLOG(1) << "Close";
if (bridge_)
bridge_->Close();
}
void WebSocketStreamHandleImpl::Context::Detach() {
handle_ = NULL;
client_ = NULL;
// If Connect was called, |bridge_| is not NULL, so that this Context closes
// the |bridge_| here. Then |bridge_| will call back DidClose, and will
// be released by itself.
// Otherwise, |bridge_| is NULL.
if (bridge_)
bridge_->Close();
}
void WebSocketStreamHandleImpl::Context::DidOpenStream(
WebKit::WebSocketStreamHandle* web_handle, int max_amount_send_allowed) {
VLOG(1) << "DidOpen";
if (client_)
client_->didOpenStream(handle_, max_amount_send_allowed);
}
void WebSocketStreamHandleImpl::Context::DidSendData(
WebKit::WebSocketStreamHandle* web_handle, int amount_sent) {
if (client_)
client_->didSendData(handle_, amount_sent);
}
void WebSocketStreamHandleImpl::Context::DidReceiveData(
WebKit::WebSocketStreamHandle* web_handle, const char* data, int size) {
if (client_)
client_->didReceiveData(handle_, WebKit::WebData(data, size));
}
void WebSocketStreamHandleImpl::Context::DidClose(
WebKit::WebSocketStreamHandle* web_handle) {
VLOG(1) << "DidClose";
bridge_ = NULL;
WebSocketStreamHandleImpl* handle = handle_;
handle_ = NULL;
if (client_) {
WebKit::WebSocketStreamHandleClient* client = client_;
client_ = NULL;
client->didClose(handle);
}
Release();
}
// WebSocketStreamHandleImpl ------------------------------------------------
WebSocketStreamHandleImpl::WebSocketStreamHandleImpl()
: ALLOW_THIS_IN_INITIALIZER_LIST(context_(new Context(this))) {
}
WebSocketStreamHandleImpl::~WebSocketStreamHandleImpl() {
// We won't receive any events from |context_|.
// |context_| is ref counted, and will be released when it received
// DidClose.
context_->Detach();
}
void WebSocketStreamHandleImpl::connect(
const WebKit::WebURL& url, WebKit::WebSocketStreamHandleClient* client) {
VLOG(1) << "connect url=" << url;
DCHECK(!context_->client());
context_->set_client(client);
context_->Connect(url);
}
bool WebSocketStreamHandleImpl::send(const WebKit::WebData& data) {
return context_->Send(data);
}
void WebSocketStreamHandleImpl::close() {
context_->Close();
}
} // namespace webkit_glue
|
