| /* |
| * Copyright (C) 2010, 2013 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER 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 "WorkerAllowMainThreadBridgeBase.h" |
| |
| #include "wtf/MainThread.h" |
| |
| namespace { |
| |
| // Observes the worker context and notifies the bridge. This is kept |
| // separate from the bridge so that it's destroyed correctly by ~Observer. |
| class WorkerGlobalScopeObserver : public WebCore::WorkerGlobalScope::Observer { |
| public: |
| static PassOwnPtr<WorkerGlobalScopeObserver> create(WebCore::WorkerGlobalScope* context, PassRefPtr<WebKit::WorkerAllowMainThreadBridgeBase> bridge) |
| { |
| return adoptPtr(new WorkerGlobalScopeObserver(context, bridge)); |
| } |
| |
| // WorkerGlobalScope::Observer method. |
| virtual void notifyStop() |
| { |
| if (!m_bridge) |
| return; |
| m_bridge->cancel(); |
| } |
| |
| private: |
| WorkerGlobalScopeObserver(WebCore::WorkerGlobalScope* context, PassRefPtr<WebKit::WorkerAllowMainThreadBridgeBase> bridge) |
| : WebCore::WorkerGlobalScope::Observer(context) |
| , m_bridge(bridge) |
| { |
| } |
| |
| RefPtr<WebKit::WorkerAllowMainThreadBridgeBase> m_bridge; |
| }; |
| |
| } |
| |
| namespace WebKit { |
| |
| WorkerAllowMainThreadBridgeBase::WorkerAllowMainThreadBridgeBase(WebCore::WorkerGlobalScope* workerGlobalScope, WebWorkerBase* webWorkerBase) |
| : m_webWorkerBase(webWorkerBase) |
| , m_workerGlobalScopeObserver(WorkerGlobalScopeObserver::create(workerGlobalScope, this).leakPtr()) |
| { |
| } |
| |
| void WorkerAllowMainThreadBridgeBase::postTaskToMainThread(PassOwnPtr<AllowParams> params) |
| { |
| WebWorkerBase::dispatchTaskToMainThread( |
| createCallbackTask(&WorkerAllowMainThreadBridgeBase::allowTask, params, this)); |
| } |
| |
| // static |
| void WorkerAllowMainThreadBridgeBase::allowTask(WebCore::ScriptExecutionContext*, PassOwnPtr<AllowParams> params, PassRefPtr<WorkerAllowMainThreadBridgeBase> bridge) |
| { |
| ASSERT(isMainThread()); |
| if (!bridge) |
| return; |
| MutexLocker locker(bridge->m_mutex); |
| if (!bridge->m_webWorkerBase) |
| return; |
| WebCommonWorkerClient* commonClient = bridge->m_webWorkerBase->commonClient(); |
| if (!commonClient) |
| return; |
| bool allow = bridge->allowOnMainThread(commonClient, params.get()); |
| bridge->m_webWorkerBase->workerLoaderProxy()->postTaskForModeToWorkerGlobalScope( |
| createCallbackTask(&didComplete, bridge, allow), params->m_mode.isolatedCopy()); |
| } |
| |
| // static |
| void WorkerAllowMainThreadBridgeBase::didComplete(WebCore::ScriptExecutionContext* context, PassRefPtr<WorkerAllowMainThreadBridgeBase> bridge, bool result) |
| { |
| bridge->m_result = result; |
| } |
| |
| } // namespace WebKit |