1/* 2 * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20#include "config.h" 21#include "JSImageConstructor.h" 22 23#include "HTMLImageElement.h" 24#include "HTMLNames.h" 25#include "JSHTMLImageElement.h" 26#include "JSNode.h" 27#include <runtime/Error.h> 28 29using namespace JSC; 30 31namespace WebCore { 32 33ASSERT_HAS_TRIVIAL_DESTRUCTOR(JSImageConstructor); 34 35const ClassInfo JSImageConstructor::s_info = { "ImageConstructor", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSImageConstructor) }; 36 37JSImageConstructor::JSImageConstructor(Structure* structure, JSDOMGlobalObject* globalObject) 38 : DOMConstructorWithDocument(structure, globalObject) 39{ 40} 41 42void JSImageConstructor::finishCreation(ExecState* exec, JSDOMGlobalObject* globalObject) 43{ 44 Base::finishCreation(globalObject); 45 ASSERT(inherits(&s_info)); 46 putDirect(exec->vm(), exec->propertyNames().prototype, JSHTMLImageElementPrototype::self(exec, globalObject), None); 47} 48 49static EncodedJSValue JSC_HOST_CALL constructImage(ExecState* exec) 50{ 51 JSImageConstructor* jsConstructor = jsCast<JSImageConstructor*>(exec->callee()); 52 Document* document = jsConstructor->document(); 53 if (!document) 54 return throwVMError(exec, createReferenceError(exec, "Image constructor associated document is unavailable")); 55 56 // Calling toJS on the document causes the JS document wrapper to be 57 // added to the window object. This is done to ensure that JSDocument::visit 58 // will be called, which will cause the image element to be marked if necessary. 59 toJS(exec, jsConstructor->globalObject(), document); 60 int width; 61 int height; 62 int* optionalWidth = 0; 63 int* optionalHeight = 0; 64 if (exec->argumentCount() > 0) { 65 width = exec->argument(0).toInt32(exec); 66 optionalWidth = &width; 67 } 68 if (exec->argumentCount() > 1) { 69 height = exec->argument(1).toInt32(exec); 70 optionalHeight = &height; 71 } 72 73 return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), 74 HTMLImageElement::createForJSConstructor(document, optionalWidth, optionalHeight)))); 75} 76 77ConstructType JSImageConstructor::getConstructData(JSCell*, ConstructData& constructData) 78{ 79 constructData.native.function = constructImage; 80 return ConstructTypeHost; 81} 82 83} // namespace WebCore 84