1 /*
2 * Copyright (C) 2007, 2008, 2010 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(VIDEO)
29
30 #include "JSAudioConstructor.h"
31
32 #include "HTMLAudioElement.h"
33 #include "JSHTMLAudioElement.h"
34 #include <runtime/Error.h>
35
36 using namespace JSC;
37
38 namespace WebCore {
39
40 const ClassInfo JSAudioConstructor::s_info = { "AudioConstructor", &DOMConstructorWithDocument::s_info, 0, 0 };
41
JSAudioConstructor(ExecState * exec,Structure * structure,JSDOMGlobalObject * globalObject)42 JSAudioConstructor::JSAudioConstructor(ExecState* exec, Structure* structure, JSDOMGlobalObject* globalObject)
43 : DOMConstructorWithDocument(structure, globalObject)
44 {
45 ASSERT(inherits(&s_info));
46 putDirect(exec->globalData(), exec->propertyNames().prototype, JSHTMLAudioElementPrototype::self(exec, globalObject), None);
47 putDirect(exec->globalData(), exec->propertyNames().length, jsNumber(1), ReadOnly | DontDelete | DontEnum);
48 }
49
constructAudio(ExecState * exec)50 static EncodedJSValue JSC_HOST_CALL constructAudio(ExecState* exec)
51 {
52 JSAudioConstructor* jsConstructor = static_cast<JSAudioConstructor*>(exec->callee());
53
54 Document* document = jsConstructor->document();
55 if (!document)
56 return throwVMError(exec, createReferenceError(exec, "Audio constructor associated document is unavailable"));
57
58 // Calling toJS on the document causes the JS document wrapper to be
59 // added to the window object. This is done to ensure that JSDocument::visitChildren
60 // will be called, which will cause the audio element to be marked if necessary.
61 toJS(exec, jsConstructor->globalObject(), document);
62
63 // FIXME: This converts an undefined argument to the string "undefined", but possibly we
64 // should treat it as if no argument was passed instead, by checking the value of exec->argument
65 // rather than looking at exec->argumentCount.
66 String src;
67 if (exec->argumentCount() > 0)
68 src = ustringToString(exec->argument(0).toString(exec));
69 return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(),
70 HTMLAudioElement::createForJSConstructor(document, src))));
71 }
72
getConstructData(ConstructData & constructData)73 ConstructType JSAudioConstructor::getConstructData(ConstructData& constructData)
74 {
75 constructData.native.function = constructAudio;
76 return ConstructTypeHost;
77 }
78
79 } // namespace WebCore
80
81 #endif // ENABLE(VIDEO)
82