WebCore/GraphicsLayerClient.h

   1 /*
   2  * Copyright (C) 2009 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  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef GraphicsLayerClient_h
  27 #define GraphicsLayerClient_h
  28
  29 #if USE(ACCELERATED_COMPOSITING)
  30
  31 namespace WebCore {
  32
  33 class GraphicsContext;
  34 class GraphicsLayer;
  35 class IntPoint;
  36 class IntRect;
  37 class FloatPoint;
  38
  39 enum GraphicsLayerPaintingPhase {
  40     GraphicsLayerPaintBackgroundMask = (1 << 0),
  41     GraphicsLayerPaintForegroundMask = (1 << 1),
  42     GraphicsLayerPaintAllMask = (GraphicsLayerPaintBackgroundMask | GraphicsLayerPaintForegroundMask)
  43 };
  44
  45 enum AnimatedPropertyID {
  46     AnimatedPropertyInvalid,
  47     AnimatedPropertyWebkitTransform,
  48     AnimatedPropertyOpacity,
  49     AnimatedPropertyBackgroundColor
  50 };
  51
  52 class GraphicsLayerClient {
  53 public:
  54     virtual ~GraphicsLayerClient() {}
  55
  56     // Callbacks for when hardware-accelerated transitions and animation started
  57     virtual void notifyAnimationStarted(const GraphicsLayer*, double time) = 0;
  58
  59     virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) = 0;
  60
  61     // Return a rect for the "contents" of the graphics layer, i.e. video or image content, in GraphicsLayer coordinates.
  62     virtual IntRect contentsBox(const GraphicsLayer*) = 0;
  63 };
  64
  65 } // namespace WebCore
  66
  67 #endif // USE(ACCELERATED_COMPOSITING)
  68
  69 #endif // GraphicsLayerClient_h