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      1 /*
      2  * Copyright (C) 2012 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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef MockImageDecoder_h
     27 
     28 #include "core/platform/image-decoders/ImageDecoder.h"
     29 #include "wtf/PassOwnPtr.h"
     30 
     31 namespace WebCore {
     32 
     33 class MockImageDecoderClient {
     34 public:
     35     virtual void decoderBeingDestroyed() = 0;
     36     virtual void frameBufferRequested() = 0;
     37     virtual ImageFrame::FrameStatus frameStatus() = 0;
     38     virtual size_t frameCount() = 0;
     39     virtual int repetitionCount() const = 0;
     40     virtual float frameDuration() const = 0;
     41 };
     42 
     43 class MockImageDecoder : public ImageDecoder {
     44 public:
     45     static PassOwnPtr<MockImageDecoder> create(MockImageDecoderClient* client) { return adoptPtr(new MockImageDecoder(client)); }
     46 
     47     MockImageDecoder(MockImageDecoderClient* client)
     48         : ImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied)
     49         , m_client(client)
     50     { }
     51 
     52     ~MockImageDecoder()
     53     {
     54         m_client->decoderBeingDestroyed();
     55     }
     56 
     57     virtual bool setSize(unsigned width, unsigned height)
     58     {
     59         ImageDecoder::setSize(width, height);
     60         m_frameBufferCache.resize(1);
     61         m_frameBufferCache[0].setSize(width, height);
     62         return true;
     63     }
     64 
     65     virtual void setFrameHasAlpha(bool hasAlpha) { m_frameBufferCache[0].setHasAlpha(hasAlpha); }
     66 
     67     virtual String filenameExtension() const
     68     {
     69         return "mock";
     70     }
     71 
     72     virtual size_t frameCount()
     73     {
     74         return m_client->frameCount();
     75     }
     76 
     77     virtual int repetitionCount() const
     78     {
     79         return m_client->repetitionCount();
     80     }
     81 
     82     virtual ImageFrame* frameBufferAtIndex(size_t)
     83     {
     84         m_client->frameBufferRequested();
     85 
     86         m_frameBufferCache[0].setStatus(m_client->frameStatus());
     87         return &m_frameBufferCache[0];
     88     }
     89 
     90     virtual bool frameIsCompleteAtIndex(size_t) const
     91     {
     92         return m_client->frameStatus() == ImageFrame::FrameComplete;
     93     }
     94 
     95     virtual float frameDurationAtIndex(size_t) const
     96     {
     97         return m_client->frameDuration();
     98     }
     99 
    100 private:
    101     MockImageDecoderClient* m_client;
    102 };
    103 
    104 } // namespace WebCore
    105 
    106 #endif // MockImageDecoder_h
    107