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#if ENABLE(NETSCAPE_PLUGIN_API) 30 31#include "JSNPObject.h" 32#include <JavaScriptCore/Error.h> 33#include <JavaScriptCore/FunctionPrototype.h> 34#include <JavaScriptCore/JSGlobalObject.h> 35#include <JavaScriptCore/JSObject.h> 36#include <WebCore/JSHTMLElement.h> 37#include <WebCore/JSPluginElementFunctions.h> 38 39using namespace JSC; 40using namespace WebCore; 41 42namespace WebKit { 43 44STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(JSNPMethod); 45 46const ClassInfo JSNPMethod::s_info = { "NPMethod", &InternalFunction::s_info, 0, 0, CREATE_METHOD_TABLE(JSNPMethod) }; 47 48JSNPMethod::JSNPMethod(JSGlobalObject* globalObject, Structure* structure, NPIdentifier npIdentifier) 49 : InternalFunction(globalObject->vm(), structure) 50 , m_npIdentifier(npIdentifier) 51{ 52} 53 54void JSNPMethod::finishCreation(VM& vm, const String& name) 55{ 56 Base::finishCreation(vm, name); 57 ASSERT(inherits(info())); 58} 59 60static EncodedJSValue JSC_HOST_CALL callMethod(ExecState* exec) 61{ 62 JSNPMethod* jsNPMethod = jsCast<JSNPMethod*>(exec->callee()); 63 64 JSValue thisValue = exec->thisValue(); 65 66 // Check if we're calling a method on the plug-in script object. 67 if (thisValue.inherits(JSHTMLElement::info())) { 68 JSHTMLElement* element = jsCast<JSHTMLElement*>(asObject(thisValue)); 69 70 // Try to get the script object from the element 71 if (JSObject* scriptObject = pluginScriptObject(exec, element)) 72 thisValue = scriptObject; 73 } 74 75 if (thisValue.inherits(JSNPObject::info())) { 76 JSNPObject* jsNPObject = jsCast<JSNPObject*>(asObject(thisValue)); 77 78 return JSValue::encode(jsNPObject->callMethod(exec, jsNPMethod->npIdentifier())); 79 } 80 81 return throwVMTypeError(exec); 82} 83 84CallType JSNPMethod::getCallData(JSCell*, CallData& callData) 85{ 86 callData.native.function = callMethod; 87 return CallTypeHost; 88} 89 90} // namespace WebKit 91 92#endif // ENABLE(NETSCAPE_PLUGIN_API) 93