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      1 /*
      2  * Copyright (C) 2010 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 BlobRegistry_h
     32 #define BlobRegistry_h
     33 
     34 #include <wtf/PassOwnPtr.h>
     35 #include <wtf/PassRefPtr.h>
     36 #include <wtf/Vector.h>
     37 
     38 namespace WebCore {
     39 
     40 class BlobData;
     41 class BlobRegistry;
     42 class KURL;
     43 class ResourceError;
     44 class ResourceHandle;
     45 class ResourceHandleClient;
     46 class ResourceRequest;
     47 class ResourceResponse;
     48 
     49 // Returns a single instance of BlobRegistry.
     50 BlobRegistry& blobRegistry();
     51 
     52 // BlobRegistry is not thread-safe. It should only be called from main thread.
     53 class BlobRegistry {
     54 public:
     55     // Registers a blob URL referring to the specified blob data.
     56     virtual void registerBlobURL(const KURL&, PassOwnPtr<BlobData>) = 0;
     57 
     58     // Registers a blob URL referring to the blob data identified by the specified srcURL.
     59     virtual void registerBlobURL(const KURL&, const KURL& srcURL) = 0;
     60 
     61     virtual void unregisterBlobURL(const KURL&) = 0;
     62     virtual PassRefPtr<ResourceHandle> createResourceHandle(const ResourceRequest&, ResourceHandleClient*) = 0;
     63     virtual bool loadResourceSynchronously(const ResourceRequest&, ResourceError&, ResourceResponse&, Vector<char>& data) = 0;
     64 
     65 protected:
     66     virtual ~BlobRegistry() { }
     67 };
     68 
     69 } // namespace WebCore
     70 
     71 #endif // BlobRegistry_h
     72