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/*
* 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 WebSharedWorkerImpl_h
#define WebSharedWorkerImpl_h
#include "public/web/WebSharedWorker.h"
#include "core/dom/ExecutionContext.h"
#include "core/workers/WorkerLoaderProxy.h"
#include "core/workers/WorkerReportingProxy.h"
#include "core/workers/WorkerScriptLoaderClient.h"
#include "core/workers/WorkerThread.h"
#include "public/web/WebContentSecurityPolicy.h"
#include "public/web/WebDevToolsAgentClient.h"
#include "public/web/WebFrameClient.h"
#include "public/web/WebSharedWorkerClient.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/RefPtr.h"
#include "wtf/WeakPtr.h"
namespace blink {
class ConsoleMessage;
class WebApplicationCacheHost;
class WebApplicationCacheHostClient;
class WebString;
class WebURL;
class WebView;
class WebSharedWorkerClient;
class WorkerInspectorProxy;
// This class is used by the worker process code to talk to the SharedWorker implementation.
// It can't use it directly since it uses WebKit types, so this class converts the data types.
// When the SharedWorker object wants to call WorkerReportingProxy, this class will
// convert to Chrome data types first and then call the supplied WebCommonWorkerClient.
class WebSharedWorkerImpl final
: public WorkerReportingProxy
, public WorkerLoaderProxy
, public WebFrameClient
, public WebSharedWorker
, public WebDevToolsAgentClient {
public:
explicit WebSharedWorkerImpl(WebSharedWorkerClient*);
// WorkerReportingProxy methods:
virtual void reportException(
const WTF::String&, int, int, const WTF::String&, int) override;
virtual void reportConsoleMessage(PassRefPtrWillBeRawPtr<ConsoleMessage>) override;
virtual void postMessageToPageInspector(const WTF::String&) override;
virtual void postWorkerConsoleAgentEnabled() override { }
virtual void didEvaluateWorkerScript(bool success) override { };
virtual void workerGlobalScopeStarted(WorkerGlobalScope*) override;
virtual void workerGlobalScopeClosed() override;
virtual void workerThreadTerminated() override;
virtual void willDestroyWorkerGlobalScope() override { }
// WorkerLoaderProxy methods:
virtual void postTaskToLoader(PassOwnPtr<ExecutionContextTask>) override;
virtual bool postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask>) override;
// WebFrameClient methods to support resource loading thru the 'shadow page'.
virtual WebApplicationCacheHost* createApplicationCacheHost(WebLocalFrame*, WebApplicationCacheHostClient*) override;
virtual void didFinishDocumentLoad(WebLocalFrame*) override;
// WebDevToolsAgentClient overrides.
virtual void sendMessageToInspectorFrontend(const WebString&) override;
virtual void saveAgentRuntimeState(const WebString&) override;
virtual void resumeStartup() override;
// WebSharedWorker methods:
virtual void startWorkerContext(const WebURL&, const WebString& name, const WebString& contentSecurityPolicy, WebContentSecurityPolicyType) override;
virtual void connect(WebMessagePortChannel*) override;
virtual void terminateWorkerContext() override;
virtual void clientDestroyed() override;
virtual void pauseWorkerContextOnStart() override;
virtual void attachDevTools(const WebString& hostId) override;
virtual void reattachDevTools(const WebString& hostId, const WebString& savedState) override;
virtual void detachDevTools() override;
virtual void dispatchDevToolsMessage(const WebString&) override;
private:
class Loader;
virtual ~WebSharedWorkerImpl();
WebSharedWorkerClient* client() { return m_client->get(); }
void setWorkerThread(PassRefPtr<WorkerThread> thread) { m_workerThread = thread; }
WorkerThread* workerThread() { return m_workerThread.get(); }
// Shuts down the worker thread.
void stopWorkerThread();
// Creates the shadow loader used for worker network requests.
void initializeLoader();
void loadShadowPage();
void didReceiveScriptLoaderResponse();
void onScriptLoaderFinished();
static void connectTask(ExecutionContext*, PassOwnPtr<WebMessagePortChannel>);
// Tasks that are run on the main thread.
void workerGlobalScopeClosedOnMainThread();
void workerThreadTerminatedOnMainThread();
void postMessageToPageInspectorOnMainThread(const String& message);
// 'shadow page' - created to proxy loading requests from the worker.
RefPtrWillBePersistent<ExecutionContext> m_loadingDocument;
WebView* m_webView;
WebFrame* m_mainFrame;
bool m_askedToTerminate;
OwnPtr<WorkerInspectorProxy> m_workerInspectorProxy;
RefPtr<WorkerThread> m_workerThread;
// This one's initialized and bound to the main thread.
RefPtr<WeakReference<WebSharedWorkerClient>> m_client;
// Usually WeakPtr is created by WeakPtrFactory exposed by Client
// class itself, but here it's implemented by Chrome so we create
// our own WeakPtr.
WeakPtr<WebSharedWorkerClient> m_clientWeakPtr;
bool m_pauseWorkerContextOnStart;
bool m_isPausedOnStart;
// Kept around only while main script loading is ongoing.
OwnPtr<Loader> m_mainScriptLoader;
WebURL m_url;
WebString m_name;
WebString m_contentSecurityPolicy;
WebContentSecurityPolicyType m_policyType;
};
} // namespace blink
#endif
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