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      1 /*
      2  * Copyright (C) 2013 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 WebServiceWorker_h
     32 #define WebServiceWorker_h
     33 
     34 #include "WebCommon.h"
     35 #include "WebMessagePortChannel.h"
     36 #include "WebServiceWorkerState.h"
     37 #include "WebString.h"
     38 #include "WebURL.h"
     39 #include "WebVector.h"
     40 
     41 namespace blink {
     42 
     43 class WebServiceWorkerProxy;
     44 typedef WebVector<class WebMessagePortChannel*> WebMessagePortChannelArray;
     45 
     46 class WebServiceWorker {
     47 public:
     48     virtual ~WebServiceWorker() { }
     49 
     50     // Sets ServiceWorkerProxy, with which callee can start making upcalls
     51     // to the ServiceWorker object via the client. This doesn't pass the
     52     // ownership to the callee, and the proxy's lifetime is same as that of
     53     // WebServiceWorker.
     54     virtual void setProxy(WebServiceWorkerProxy*) { }
     55     virtual WebServiceWorkerProxy* proxy() { return 0; }
     56 
     57     // Called by this worker's ServiceWorkerProxy when it has become ready or
     58     // not ready for state change notifications.
     59     virtual void proxyReadyChanged() { }
     60 
     61     virtual WebURL scope() const { return WebURL(); }
     62     virtual WebURL url() const { return WebURL(); }
     63     virtual WebServiceWorkerState state() const { return WebServiceWorkerStateUnknown; }
     64 
     65     // Callee receives ownership of the passed vector.
     66     // FIXME: Blob refs should be passed to maintain ref counts. crbug.com/351753
     67     virtual void postMessage(const WebString&, WebMessagePortChannelArray*) { BLINK_ASSERT_NOT_REACHED(); }
     68 };
     69 
     70 }
     71 
     72 #endif // WebServiceWorker_h
     73