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
38namespace WebCore {
39
40class BlobData;
41class BlobRegistry;
42class KURL;
43class ResourceError;
44class ResourceHandle;
45class ResourceHandleClient;
46class ResourceRequest;
47class ResourceResponse;
48
49// Returns a single instance of BlobRegistry.
50BlobRegistry& blobRegistry();
51
52// BlobRegistry is not thread-safe. It should only be called from main thread.
53class BlobRegistry {
54public:
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
65protected:
66    virtual ~BlobRegistry() { }
67};
68
69} // namespace WebCore
70
71#endif // BlobRegistry_h
72