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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebSharedWorker_h
     32 #define WebSharedWorker_h
     33 
     34 #include "../platform/WebCommon.h"
     35 #include "WebContentSecurityPolicy.h"
     36 #include "WebSharedWorkerConnector.h"
     37 
     38 namespace WebCore {
     39 class ScriptExecutionContext;
     40 }
     41 
     42 namespace blink {
     43 
     44 class WebString;
     45 class WebMessagePortChannel;
     46 class WebSharedWorkerClient;
     47 class WebURL;
     48 
     49 // This is the interface to a SharedWorker thread.
     50 // FIXME(horo): Make WebSharedWorker independent from WebSharedWorkerConnector.
     51 class WebSharedWorker : public WebSharedWorkerConnector {
     52 public:
     53     // Invoked from the worker thread to instantiate a WebSharedWorker that interacts with the WebKit worker components.
     54     BLINK_EXPORT static WebSharedWorker* create(WebSharedWorkerClient*);
     55 
     56     virtual ~WebSharedWorker() {};
     57 
     58     // Invoked to shutdown the worker when there are no more associated documents.
     59     virtual void terminateWorkerContext() = 0;
     60 
     61     // Notification when the WebCommonWorkerClient is destroyed.
     62     virtual void clientDestroyed() = 0;
     63 
     64     virtual void pauseWorkerContextOnStart() { }
     65     virtual void resumeWorkerContext() { }
     66     virtual void attachDevTools() { }
     67     virtual void reattachDevTools(const WebString& savedState) { }
     68     virtual void detachDevTools() { }
     69     virtual void dispatchDevToolsMessage(const WebString&) { }
     70 };
     71 
     72 } // namespace blink
     73 
     74 #endif
     75