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/*
* Copyright (C) 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.
*/
#ifndef WebEmbeddedWorkerImpl_h
#define WebEmbeddedWorkerImpl_h
#include "core/workers/WorkerLoaderProxy.h"
#include "public/web/WebContentSecurityPolicy.h"
#include "public/web/WebDevToolsAgentClient.h"
#include "public/web/WebEmbeddedWorker.h"
#include "public/web/WebEmbeddedWorkerStartData.h"
#include "public/web/WebFrameClient.h"
namespace blink {
class ServiceWorkerGlobalScopeProxy;
class WebLocalFrameImpl;
class WebServiceWorkerNetworkProvider;
class WebView;
class WorkerInspectorProxy;
class WorkerScriptLoader;
class WorkerThread;
class WebEmbeddedWorkerImpl final
: public WebEmbeddedWorker
, public WebFrameClient
, public WebDevToolsAgentClient
, private WorkerLoaderProxyProvider {
WTF_MAKE_NONCOPYABLE(WebEmbeddedWorkerImpl);
public:
WebEmbeddedWorkerImpl(PassOwnPtr<WebServiceWorkerContextClient>, PassOwnPtr<WebWorkerContentSettingsClientProxy>);
~WebEmbeddedWorkerImpl() override;
// WebEmbeddedWorker overrides.
void startWorkerContext(const WebEmbeddedWorkerStartData&) override;
void terminateWorkerContext() override;
void resumeAfterDownload() override;
void attachDevTools(const WebString& hostId, int sessionId) override;
void reattachDevTools(const WebString& hostId, int sessionId, const WebString& savedState) override;
void detachDevTools() override;
void dispatchDevToolsMessage(int sessionId, const WebString&) override;
void postMessageToPageInspector(const WTF::String&);
private:
void prepareShadowPageForLoader();
void loadShadowPage();
// WebFrameClient overrides.
void willSendRequest(
WebLocalFrame*, unsigned identifier, WebURLRequest&,
const WebURLResponse& redirectResponse) override;
void didFinishDocumentLoad(WebLocalFrame*) override;
// WebDevToolsAgentClient overrides.
void sendProtocolMessage(int sessionId, int callId, const WebString&, const WebString&) override;
void resumeStartup() override;
void onScriptLoaderFinished();
void startWorkerThread();
// WorkerLoaderProxyProvider
void postTaskToLoader(PassOwnPtr<ExecutionContextTask>) override;
bool postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask>) override;
WebEmbeddedWorkerStartData m_workerStartData;
OwnPtr<WebServiceWorkerContextClient> m_workerContextClient;
// This is kept until startWorkerContext is called, and then passed on
// to WorkerContext.
OwnPtr<WebWorkerContentSettingsClientProxy> m_contentSettingsClient;
// We retain ownership of this one which is for use on the
// main thread only.
OwnPtr<WebServiceWorkerNetworkProvider> m_networkProvider;
// Kept around only while main script loading is ongoing.
RefPtr<WorkerScriptLoader> m_mainScriptLoader;
OwnPtr<WorkerThread> m_workerThread;
RefPtr<WorkerLoaderProxy> m_loaderProxy;
OwnPtrWillBePersistent<ServiceWorkerGlobalScopeProxy> m_workerGlobalScopeProxy;
OwnPtrWillBePersistent<WorkerInspectorProxy> m_workerInspectorProxy;
// 'shadow page' - created to proxy loading requests from the worker.
// Both WebView and WebFrame objects are close()'ed (where they're
// deref'ed) when this EmbeddedWorkerImpl is destructed, therefore they
// are guaranteed to exist while this object is around.
WebView* m_webView;
RefPtrWillBePersistent<WebLocalFrameImpl> m_mainFrame;
bool m_loadingShadowPage;
bool m_askedToTerminate;
enum WaitingForDebuggerState {
WaitingForDebugger,
NotWaitingForDebugger
};
enum {
DontPauseAfterDownload,
DoPauseAfterDownload,
IsPausedAfterDownload
} m_pauseAfterDownloadState;
WaitingForDebuggerState m_waitingForDebuggerState;
};
} // namespace blink
#endif // WebEmbeddedWorkerImpl_h
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