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 42 JSAudioConstructor::JSAudioConstructor(ExecState* exec, JSDOMGlobalObject* globalObject) 43 : DOMConstructorWithDocument(JSAudioConstructor::createStructure(globalObject->globalData(), globalObject->objectPrototype()), 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 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::markChildren 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 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
