| /* |
| * Copyright (C) 2010-2018 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "JSNPMethod.h" |
| |
| #if ENABLE(NETSCAPE_PLUGIN_API) |
| |
| #include "JSNPObject.h" |
| #include <JavaScriptCore/Error.h> |
| #include <JavaScriptCore/FunctionPrototype.h> |
| #include <JavaScriptCore/IsoSubspacePerVM.h> |
| #include <JavaScriptCore/JSDestructibleObjectHeapCellType.h> |
| #include <JavaScriptCore/JSGlobalObjectInlines.h> |
| #include <JavaScriptCore/JSObject.h> |
| #include <WebCore/JSHTMLElement.h> |
| #include <WebCore/JSPluginElementFunctions.h> |
| |
| namespace WebKit { |
| using namespace JSC; |
| using namespace WebCore; |
| |
| STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(JSNPMethod); |
| |
| const ClassInfo JSNPMethod::s_info = { "NPMethod", &InternalFunction::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSNPMethod) }; |
| |
| static EncodedJSValue JSC_HOST_CALL callMethod(JSGlobalObject*, CallFrame*); |
| |
| JSNPMethod::JSNPMethod(JSGlobalObject* globalObject, Structure* structure, NPIdentifier npIdentifier) |
| : InternalFunction(globalObject->vm(), structure, callMethod, nullptr) |
| , m_npIdentifier(npIdentifier) |
| { |
| } |
| |
| void JSNPMethod::finishCreation(VM& vm, const String& name) |
| { |
| Base::finishCreation(vm, name); |
| ASSERT(inherits(vm, info())); |
| } |
| |
| IsoSubspace* JSNPMethod::subspaceForImpl(VM& vm) |
| { |
| static NeverDestroyed<IsoSubspacePerVM> perVM([] (VM& vm) { return ISO_SUBSPACE_PARAMETERS(vm.cellHeapCellType.get(), JSNPMethod); }); |
| return &perVM.get().forVM(vm); |
| } |
| |
| static EncodedJSValue JSC_HOST_CALL callMethod(JSGlobalObject* globalObject, CallFrame* callFrame) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| JSNPMethod* jsNPMethod = jsCast<JSNPMethod*>(callFrame->jsCallee()); |
| |
| JSValue thisValue = callFrame->thisValue(); |
| |
| // Check if we're calling a method on the plug-in script object. |
| if (thisValue.inherits<JSHTMLElement>(vm)) { |
| JSHTMLElement* element = jsCast<JSHTMLElement*>(asObject(thisValue)); |
| |
| // Try to get the script object from the element |
| if (JSObject* scriptObject = pluginScriptObject(globalObject, element)) |
| thisValue = scriptObject; |
| } |
| |
| if (thisValue.inherits<JSNPObject>(vm)) { |
| JSNPObject* jsNPObject = jsCast<JSNPObject*>(asObject(thisValue)); |
| |
| return JSValue::encode(jsNPObject->callMethod(globalObject, callFrame, jsNPMethod->npIdentifier())); |
| } |
| |
| return throwVMTypeError(globalObject, scope); |
| } |
| |
| } // namespace WebKit |
| |
| #endif // ENABLE(NETSCAPE_PLUGIN_API) |