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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 
     37 namespace WebCore {
     38 class ScriptExecutionContext;
     39 }
     40 
     41 namespace blink {
     42 
     43 class WebString;
     44 class WebMessagePortChannel;
     45 class WebSharedWorkerClient;
     46 class WebURL;
     47 
     48 // This is the interface to a SharedWorker thread.
     49 class WebSharedWorker {
     50 public:
     51     // Invoked from the worker thread to instantiate a WebSharedWorker that interacts with the WebKit worker components.
     52     BLINK_EXPORT static WebSharedWorker* create(WebSharedWorkerClient*);
     53 
     54     virtual void startWorkerContext(
     55         const WebURL& scriptURL,
     56         const WebString& name,
     57         const WebString& contentSecurityPolicy,
     58         WebContentSecurityPolicyType) = 0;
     59 
     60     // Sends a connect event to the SharedWorker context.
     61     virtual void connect(WebMessagePortChannel*) = 0;
     62 
     63     // Invoked to shutdown the worker when there are no more associated documents.
     64     virtual void terminateWorkerContext() = 0;
     65 
     66     // Notification when the WebCommonWorkerClient is destroyed.
     67     virtual void clientDestroyed() = 0;
     68 
     69     virtual void pauseWorkerContextOnStart() = 0;
     70     virtual void resumeWorkerContext() = 0;
     71     virtual void attachDevTools() = 0;
     72     virtual void reattachDevTools(const WebString& savedState) = 0;
     73     virtual void detachDevTools() = 0;
     74     virtual void dispatchDevToolsMessage(const WebString&) = 0;
     75 };
     76 
     77 } // namespace blink
     78 
     79 #endif
     80