Home | History | Annotate | Download | only in graphics 
      1 /*
      2  * Copyright (C) 2012 Apple 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  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef SVGImageChromeClient_h
     30 #define SVGImageChromeClient_h
     31 
     32 #include "core/loader/EmptyClients.h"
     33 #include "core/platform/graphics/ImageObserver.h"
     34 
     35 namespace WebCore {
     36 
     37 class SVGImageChromeClient : public EmptyChromeClient {
     38     WTF_MAKE_NONCOPYABLE(SVGImageChromeClient); WTF_MAKE_FAST_ALLOCATED;
     39 public:
     40     SVGImageChromeClient(SVGImage* image)
     41         : m_image(image)
     42     {
     43     }
     44 
     45     virtual bool isSVGImageChromeClient() const { return true; }
     46     SVGImage* image() const { return m_image; }
     47 
     48 private:
     49     virtual void chromeDestroyed()
     50     {
     51         m_image = 0;
     52     }
     53 
     54     virtual void invalidateContentsAndRootView(const IntRect& r)
     55     {
     56         // If m_image->m_page is null, we're being destructed, don't fire changedInRect() in that case.
     57         if (m_image && m_image->imageObserver() && m_image->m_page)
     58             m_image->imageObserver()->changedInRect(m_image, r);
     59     }
     60 
     61     SVGImage* m_image;
     62 };
     63 
     64 inline SVGImageChromeClient* toSVGImageChromeClient(ChromeClient* client)
     65 {
     66     ASSERT_WITH_SECURITY_IMPLICATION(!client || client->isSVGImageChromeClient());
     67     return static_cast<SVGImageChromeClient*>(client);
     68 }
     69 
     70 }
     71 
     72 #endif // SVGImageChromeClient_h
     73