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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 WebCompositorSupport_h
     27 #define WebCompositorSupport_h
     28 
     29 #include "WebCommon.h"
     30 #include "WebCompositorAnimation.h"
     31 #include "WebCompositorAnimationCurve.h"
     32 #include "WebFloatPoint.h"
     33 #include "WebLayerTreeView.h"
     34 #include "WebScrollbar.h"
     35 #include "WebScrollbarThemePainter.h"
     36 
     37 namespace blink {
     38 
     39 class WebCompositorAnimationCurve;
     40 class WebCompositorOutputSurface;
     41 class WebContentLayer;
     42 class WebContentLayerClient;
     43 class WebExternalTextureLayer;
     44 class WebExternalTextureLayerClient;
     45 class WebFilterAnimationCurve;
     46 class WebFilterOperations;
     47 class WebFloatAnimationCurve;
     48 class WebGraphicsContext3D;
     49 class WebImageLayer;
     50 class WebNinePatchLayer;
     51 class WebLayer;
     52 class WebScrollbarLayer;
     53 class WebScrollbarThemeGeometry;
     54 class WebScrollOffsetAnimationCurve;
     55 class WebTransformAnimationCurve;
     56 class WebTransformOperations;
     57 
     58 class WebCompositorSupport {
     59 public:
     60     // Creates an output surface for the compositor backed by a 3d context.
     61     virtual WebCompositorOutputSurface* createOutputSurfaceFor3D(WebGraphicsContext3D*) { return 0; }
     62 
     63     // Creates an output surface for the compositor backed by a software device.
     64     virtual WebCompositorOutputSurface* createOutputSurfaceForSoftware() { return 0; }
     65 
     66     // Layers -------------------------------------------------------
     67 
     68     virtual WebLayer* createLayer() { return 0; }
     69 
     70     virtual WebContentLayer* createContentLayer(WebContentLayerClient*) { return 0; }
     71 
     72     virtual WebExternalTextureLayer* createExternalTextureLayer(WebExternalTextureLayerClient*) { return 0; }
     73 
     74     virtual WebImageLayer* createImageLayer() { return 0; }
     75 
     76     virtual WebNinePatchLayer* createNinePatchLayer() { return 0; }
     77 
     78     // The ownership of the WebScrollbarThemeGeometry pointer is passed to Chromium.
     79     virtual WebScrollbarLayer* createScrollbarLayer(WebScrollbar*, WebScrollbarThemePainter, WebScrollbarThemeGeometry*) { return 0; }
     80 
     81     virtual WebScrollbarLayer* createSolidColorScrollbarLayer(WebScrollbar::Orientation, int thumbThickness, int trackStart, bool isLeftSideVerticalScrollbar) { return 0; }
     82 
     83     // Animation ----------------------------------------------------
     84 
     85     virtual WebCompositorAnimation* createAnimation(const WebCompositorAnimationCurve&, WebCompositorAnimation::TargetProperty, int animationId = 0) { return 0; }
     86 
     87     virtual WebFilterAnimationCurve* createFilterAnimationCurve() { return 0; }
     88 
     89     virtual WebFloatAnimationCurve* createFloatAnimationCurve() { return 0; }
     90 
     91     virtual WebScrollOffsetAnimationCurve* createScrollOffsetAnimationCurve(WebFloatPoint targetValue, WebCompositorAnimationCurve::TimingFunctionType) { return 0; }
     92 
     93     virtual WebTransformAnimationCurve* createTransformAnimationCurve() { return 0; }
     94 
     95     virtual WebTransformOperations* createTransformOperations() { return 0; }
     96 
     97     virtual WebFilterOperations* createFilterOperations() { return 0; }
     98 
     99 protected:
    100     virtual ~WebCompositorSupport() { }
    101 };
    102 
    103 }
    104 
    105 #endif // WebCompositorSupport_h
    106