/* * Copyright (C) 2009 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. */ #ifndef WorkerLoaderProxy_h #define WorkerLoaderProxy_h #include "core/dom/ExecutionContext.h" #include "wtf/Forward.h" #include "wtf/PassOwnPtr.h" namespace WebCore { // A proxy to talk to the loader context. Normally, the document on the main thread // provides loading services for the subordinate workers. This interface provides 2-way // communications to the Document context and back to the worker. // Note that in multi-process browsers, the Worker object context and the Document // context can be distinct. class WorkerLoaderProxy { public: virtual ~WorkerLoaderProxy() { } // Posts a task to the thread which runs the loading code (normally, the main thread). virtual void postTaskToLoader(PassOwnPtr<ExecutionContextTask>) = 0; // Posts callbacks from loading code to the WorkerGlobalScope. // Returns true if the task was posted successfully. virtual bool postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask>) = 0; }; } // namespace WebCore #endif // WorkerLoaderProxy_h