1/* 2 * Copyright (C) 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 INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "JSNPMethod.h" 28 29#include "JSNPObject.h" 30#include <JavaScriptCore/Error.h> 31#include <JavaScriptCore/FunctionPrototype.h> 32#include <JavaScriptCore/JSGlobalObject.h> 33#include <WebCore/JSHTMLElement.h> 34#include <WebCore/JSPluginElementFunctions.h> 35#include <WebCore/NotImplemented.h> 36 37using namespace JSC; 38using namespace WebCore; 39 40namespace WebKit { 41 42const ClassInfo JSNPMethod::s_info = { "NPMethod", &InternalFunction::s_info, 0, 0 }; 43 44JSNPMethod::JSNPMethod(ExecState* exec, JSGlobalObject* globalObject, const Identifier& name, NPIdentifier npIdentifier) 45 : InternalFunction(&exec->globalData(), globalObject, createStructure(exec->globalData(), globalObject->functionPrototype()), name) 46 , m_npIdentifier(npIdentifier) 47{ 48 ASSERT(inherits(&s_info)); 49} 50 51static EncodedJSValue JSC_HOST_CALL callMethod(ExecState* exec) 52{ 53 JSNPMethod* jsNPMethod = static_cast<JSNPMethod*>(exec->callee()); 54 55 JSValue thisValue = exec->hostThisValue(); 56 57 // Check if we're calling a method on the plug-in script object. 58 if (thisValue.inherits(&JSHTMLElement::s_info)) { 59 JSHTMLElement* element = static_cast<JSHTMLElement*>(asObject(thisValue)); 60 61 // Try to get the script object from the element 62 if (JSObject* scriptObject = pluginScriptObject(exec, element)) 63 thisValue = scriptObject; 64 } 65 66 if (thisValue.inherits(&JSNPObject::s_info)) { 67 JSNPObject* jsNPObject = static_cast<JSNPObject*>(asObject(thisValue)); 68 69 return JSValue::encode(jsNPObject->callMethod(exec, jsNPMethod->npIdentifier())); 70 } 71 72 return throwVMTypeError(exec); 73} 74 75CallType JSNPMethod::getCallData(CallData& callData) 76{ 77 callData.native.function = callMethod; 78 return CallTypeHost; 79} 80 81} // namespace WebKit 82