| /* |
| * Copyright (C) 2008-2017 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. ``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 |
| * 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 "JSEventTarget.h" |
| |
| #include "DOMWindow.h" |
| #include "EventTarget.h" |
| #include "EventTargetHeaders.h" |
| #include "EventTargetInterfaces.h" |
| #include "JSDOMWindow.h" |
| #include "JSEventListener.h" |
| #include "JSWindowProxy.h" |
| #include "JSWorkerGlobalScope.h" |
| #include "OffscreenCanvas.h" |
| #include "WorkerGlobalScope.h" |
| |
| namespace WebCore { |
| using namespace JSC; |
| |
| #define TRY_TO_WRAP_WITH_INTERFACE(interfaceName) \ |
| case interfaceName##EventTargetInterfaceType: \ |
| return toJS(exec, globalObject, static_cast<interfaceName&>(target)); |
| |
| JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, EventTarget& target) |
| { |
| switch (target.eventTargetInterface()) { |
| DOM_EVENT_TARGET_INTERFACES_FOR_EACH(TRY_TO_WRAP_WITH_INTERFACE) |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return jsNull(); |
| } |
| |
| #undef TRY_TO_WRAP_WITH_INTERFACE |
| |
| #define TRY_TO_UNWRAP_WITH_INTERFACE(interfaceName) \ |
| if (value.inherits<JS##interfaceName>(vm)) \ |
| return &jsCast<JS##interfaceName*>(asObject(value))->wrapped(); |
| |
| EventTarget* JSEventTarget::toWrapped(VM& vm, JSValue value) |
| { |
| TRY_TO_UNWRAP_WITH_INTERFACE(WindowProxy) |
| TRY_TO_UNWRAP_WITH_INTERFACE(DOMWindow) |
| TRY_TO_UNWRAP_WITH_INTERFACE(WorkerGlobalScope) |
| TRY_TO_UNWRAP_WITH_INTERFACE(EventTarget) |
| return nullptr; |
| } |
| |
| #undef TRY_TO_UNWRAP_WITH_INTERFACE |
| |
| std::unique_ptr<JSEventTargetWrapper> jsEventTargetCast(VM& vm, JSValue thisValue) |
| { |
| if (auto* target = jsDynamicCast<JSEventTarget*>(vm, thisValue)) |
| return std::make_unique<JSEventTargetWrapper>(target->wrapped(), *target); |
| if (auto* window = toJSDOMWindow(vm, thisValue)) |
| return std::make_unique<JSEventTargetWrapper>(window->wrapped(), *window); |
| if (auto* scope = toJSWorkerGlobalScope(vm, thisValue)) |
| return std::make_unique<JSEventTargetWrapper>(scope->wrapped(), *scope); |
| return nullptr; |
| } |
| |
| void JSEventTarget::visitAdditionalChildren(SlotVisitor& visitor) |
| { |
| wrapped().visitJSEventListeners(visitor); |
| } |
| |
| } // namespace WebCore |