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author | Ben Murdoch <benm@google.com> | 2011-05-13 16:23:25 +0100 |
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committer | Ben Murdoch <benm@google.com> | 2011-05-16 11:35:02 +0100 |
commit | 65f03d4f644ce73618e5f4f50dd694b26f55ae12 (patch) | |
tree | f478babb801e720de7bfaee23443ffe029f58731 /Source/WebKit/chromium/src/WebWorkerClientImpl.h | |
parent | 47de4a2fb7262c7ebdb9cd133ad2c54c187454d0 (diff) | |
download | external_webkit-65f03d4f644ce73618e5f4f50dd694b26f55ae12.zip external_webkit-65f03d4f644ce73618e5f4f50dd694b26f55ae12.tar.gz external_webkit-65f03d4f644ce73618e5f4f50dd694b26f55ae12.tar.bz2 |
Merge WebKit at r75993: Initial merge by git.
Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3
Diffstat (limited to 'Source/WebKit/chromium/src/WebWorkerClientImpl.h')
-rw-r--r-- | Source/WebKit/chromium/src/WebWorkerClientImpl.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/Source/WebKit/chromium/src/WebWorkerClientImpl.h b/Source/WebKit/chromium/src/WebWorkerClientImpl.h new file mode 100644 index 0000000..0604823 --- /dev/null +++ b/Source/WebKit/chromium/src/WebWorkerClientImpl.h @@ -0,0 +1,168 @@ +/* + * 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 WebWorkerClientImpl_h +#define WebWorkerClientImpl_h + +#if ENABLE(WORKERS) + +#include "WebFileSystem.h" +#include "WebWorkerClient.h" +#include "WorkerContextProxy.h" +#include <wtf/PassOwnPtr.h> +#include <wtf/RefPtr.h> + +namespace WebCore { +class ScriptExecutionContext; +} + +namespace WebKit { +class WebWorker; + +// The purpose of this class is to provide a WorkerContextProxy +// implementation that we can give to WebKit. Internally, it converts the +// data types to Chrome compatible ones so that renderer code can use it over +// IPC. +class WebWorkerClientImpl : public WebCore::WorkerContextProxy + , public WebWorkerClient { +public: + WebWorkerClientImpl(WebCore::Worker*); + + // WebCore::WorkerContextProxy Factory. + static WebCore::WorkerContextProxy* createWorkerContextProxy(WebCore::Worker*); + void setWebWorker(WebWorker*); + + // WebCore::WorkerContextProxy methods: + // These are called on the thread that created the worker. In the renderer + // process, this will be the main WebKit thread. In the worker process, this + // will be the thread of the executing worker (not the main WebKit thread). + virtual void startWorkerContext(const WebCore::KURL&, + const WTF::String&, + const WTF::String&); + virtual void terminateWorkerContext(); + virtual void postMessageToWorkerContext( + PassRefPtr<WebCore::SerializedScriptValue> message, + PassOwnPtr<WebCore::MessagePortChannelArray> channels); + virtual bool hasPendingActivity() const; + virtual void workerObjectDestroyed(); + + // WebWorkerClient methods: + // These are called on the main WebKit thread. + virtual void postMessageToWorkerObject(const WebString&, const WebMessagePortChannelArray&); + virtual void postExceptionToWorkerObject(const WebString&, int, const WebString&); + + // FIXME: the below is for compatibility only and should be + // removed once Chromium is updated to remove message + // destination parameter <http://webkit.org/b/37155>. + virtual void postConsoleMessageToWorkerObject(int, int, int, int, const WebString&, int, const WebString&); + virtual void postConsoleMessageToWorkerObject(int, int, int, const WebString&, int, const WebString&); + virtual void confirmMessageFromWorkerObject(bool); + virtual void reportPendingActivity(bool); + virtual void workerContextClosed(); + virtual void workerContextDestroyed(); + virtual WebWorker* createWorker(WebWorkerClient*) { return 0; } + virtual WebNotificationPresenter* notificationPresenter() + { + // FIXME: Notifications not yet supported in workers. + return 0; + } + virtual WebApplicationCacheHost* createApplicationCacheHost(WebApplicationCacheHostClient*) { return 0; } + virtual bool allowDatabase(WebFrame*, const WebString& name, const WebString& displayName, unsigned long estimatedSize) + { + ASSERT_NOT_REACHED(); + return true; + } + virtual void openFileSystem(WebFrame*, WebFileSystem::Type, long long size, WebFileSystemCallbacks*) + { + ASSERT_NOT_REACHED(); + } + +private: + virtual ~WebWorkerClientImpl(); + + // Methods used to support WebWorkerClientImpl being constructed on worker + // threads. + // These tasks are dispatched on the WebKit thread. + static void startWorkerContextTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr, + const WTF::String& scriptURL, + const WTF::String& userAgent, + const WTF::String& sourceCode); + static void terminateWorkerContextTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr); + static void postMessageToWorkerContextTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr, + const WTF::String& message, + PassOwnPtr<WebCore::MessagePortChannelArray> channels); + static void workerObjectDestroyedTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr); + + // These tasks are dispatched on the thread that created the worker (i.e. + // main WebKit thread in renderer process, and the worker thread in the + // worker process). + static void postMessageToWorkerObjectTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr, + const WTF::String& message, + PassOwnPtr<WebCore::MessagePortChannelArray> channels); + static void postExceptionToWorkerObjectTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr, + const WTF::String& message, + int lineNumber, + const WTF::String& sourceURL); + static void postConsoleMessageToWorkerObjectTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr, + int sourceId, + int messageType, + int messageLevel, + const WTF::String& message, + int lineNumber, + const WTF::String& sourceURL); + static void confirmMessageFromWorkerObjectTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr); + static void reportPendingActivityTask(WebCore::ScriptExecutionContext* context, + WebWorkerClientImpl* thisPtr, + bool hasPendingActivity); + + // Guard against context from being destroyed before a worker exits. + RefPtr<WebCore::ScriptExecutionContext> m_scriptExecutionContext; + + WebCore::Worker* m_worker; + WebWorker* m_webWorker; + bool m_askedToTerminate; + unsigned m_unconfirmedMessageCount; + bool m_workerContextHadPendingActivity; + ThreadIdentifier m_workerThreadId; +}; + +} // namespace WebKit; + +#endif // ENABLE(WORKERS) + +#endif |