1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32
33 #if ENABLE(WORKERS)
34 #include "V8WorkerContext.h"
35
36 #include "DOMTimer.h"
37 #include "ExceptionCode.h"
38 #include "ScheduledAction.h"
39 #include "V8Binding.h"
40 #include "V8BindingMacros.h"
41 #include "V8Proxy.h"
42 #include "V8Utilities.h"
43 #include "V8WorkerContextEventListener.h"
44 #include "WebSocket.h"
45 #include "WorkerContext.h"
46 #include "WorkerContextExecutionProxy.h"
47
48 namespace WebCore {
49
SetTimeoutOrInterval(const v8::Arguments & args,bool singleShot)50 v8::Handle<v8::Value> SetTimeoutOrInterval(const v8::Arguments& args, bool singleShot)
51 {
52 WorkerContext* workerContext = V8WorkerContext::toNative(args.Holder());
53
54 int argumentCount = args.Length();
55 if (argumentCount < 1)
56 return v8::Undefined();
57
58 v8::Handle<v8::Value> function = args[0];
59 int32_t timeout = argumentCount >= 2 ? args[1]->Int32Value() : 0;
60 int timerId;
61
62 WorkerContextExecutionProxy* proxy = workerContext->script()->proxy();
63 if (!proxy)
64 return v8::Undefined();
65
66 v8::Handle<v8::Context> v8Context = proxy->context();
67 if (function->IsString()) {
68 WTF::String stringFunction = toWebCoreString(function);
69 timerId = DOMTimer::install(workerContext, new ScheduledAction(v8Context, stringFunction, workerContext->url()), timeout, singleShot);
70 } else if (function->IsFunction()) {
71 size_t paramCount = argumentCount >= 2 ? argumentCount - 2 : 0;
72 v8::Local<v8::Value>* params = 0;
73 if (paramCount > 0) {
74 params = new v8::Local<v8::Value>[paramCount];
75 for (size_t i = 0; i < paramCount; ++i)
76 params[i] = args[i+2];
77 }
78 // ScheduledAction takes ownership of actual params and releases them in its destructor.
79 ScheduledAction* action = new ScheduledAction(v8Context, v8::Handle<v8::Function>::Cast(function), paramCount, params);
80 delete [] params;
81 timerId = DOMTimer::install(workerContext, action, timeout, singleShot);
82 } else
83 return v8::Undefined();
84
85 return v8::Integer::New(timerId);
86 }
87
importScriptsCallback(const v8::Arguments & args)88 v8::Handle<v8::Value> V8WorkerContext::importScriptsCallback(const v8::Arguments& args)
89 {
90 INC_STATS(L"DOM.WorkerContext.importScripts()");
91 if (!args.Length())
92 return v8::Undefined();
93
94 Vector<String> urls;
95 for (int i = 0; i < args.Length(); i++) {
96 v8::TryCatch tryCatch;
97 v8::Handle<v8::String> scriptUrl = args[i]->ToString();
98 if (tryCatch.HasCaught() || scriptUrl.IsEmpty())
99 return v8::Undefined();
100 urls.append(toWebCoreString(scriptUrl));
101 }
102
103 WorkerContext* workerContext = V8WorkerContext::toNative(args.Holder());
104
105 ExceptionCode ec = 0;
106 workerContext->importScripts(urls, ec);
107
108 if (ec)
109 return throwError(ec);
110
111 return v8::Undefined();
112 }
113
setTimeoutCallback(const v8::Arguments & args)114 v8::Handle<v8::Value> V8WorkerContext::setTimeoutCallback(const v8::Arguments& args)
115 {
116 INC_STATS(L"DOM.WorkerContext.setTimeout()");
117 return SetTimeoutOrInterval(args, true);
118 }
119
setIntervalCallback(const v8::Arguments & args)120 v8::Handle<v8::Value> V8WorkerContext::setIntervalCallback(const v8::Arguments& args)
121 {
122 INC_STATS(L"DOM.WorkerContext.setInterval()");
123 return SetTimeoutOrInterval(args, false);
124 }
125
toV8(WorkerContext * impl)126 v8::Handle<v8::Value> toV8(WorkerContext* impl)
127 {
128 if (!impl)
129 return v8::Null();
130
131 WorkerContextExecutionProxy* proxy = impl->script()->proxy();
132 if (!proxy)
133 return v8::Null();
134
135 v8::Handle<v8::Object> global = proxy->context()->Global();
136 ASSERT(!global.IsEmpty());
137 return global;
138 }
139
140 } // namespace WebCore
141
142 #endif // ENABLE(WORKERS)
143