1 /*
2 * Copyright (C) 2008 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27
28 #if ENABLE(WORKERS)
29
30 #include "JSWorkerConstructor.h"
31
32 #include "Document.h"
33 #include "ExceptionCode.h"
34 #include "JSDOMWindowCustom.h"
35 #include "JSWorker.h"
36 #include "Worker.h"
37
38 using namespace JSC;
39
40 namespace WebCore {
41
42 const ClassInfo JSWorkerConstructor::s_info = { "WorkerConstructor", 0, 0, 0 };
43
JSWorkerConstructor(ExecState * exec,JSDOMGlobalObject * globalObject)44 JSWorkerConstructor::JSWorkerConstructor(ExecState* exec, JSDOMGlobalObject* globalObject)
45 : DOMConstructorObject(JSWorkerConstructor::createStructure(globalObject->objectPrototype()), globalObject)
46 {
47 putDirect(exec->propertyNames().prototype, JSWorkerPrototype::self(exec, globalObject), None);
48 putDirect(exec->propertyNames().length, jsNumber(exec, 1), ReadOnly|DontDelete|DontEnum);
49 }
50
constructWorker(ExecState * exec,JSObject * constructor,const ArgList & args)51 static JSObject* constructWorker(ExecState* exec, JSObject* constructor, const ArgList& args)
52 {
53 JSWorkerConstructor* jsConstructor = static_cast<JSWorkerConstructor*>(constructor);
54
55 if (args.size() == 0)
56 return throwError(exec, SyntaxError, "Not enough arguments");
57
58 UString scriptURL = args.at(0).toString(exec);
59 if (exec->hadException())
60 return 0;
61
62 // See section 4.8.2 step 14 of WebWorkers for why this is the lexicalGlobalObject.
63 DOMWindow* window = asJSDOMWindow(exec->lexicalGlobalObject())->impl();
64
65 ExceptionCode ec = 0;
66 RefPtr<Worker> worker = Worker::create(scriptURL, window->document(), ec);
67 if (ec) {
68 setDOMException(exec, ec);
69 return 0;
70 }
71
72 return asObject(toJS(exec, jsConstructor->globalObject(), worker.release()));
73 }
74
getConstructData(ConstructData & constructData)75 ConstructType JSWorkerConstructor::getConstructData(ConstructData& constructData)
76 {
77 constructData.native.function = constructWorker;
78 return ConstructTypeHost;
79 }
80
81 } // namespace WebCore
82
83 #endif // ENABLE(WORKERS)
84