third_party/WebKit/public/platform/WebCompositorAnimation.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WebCompositorAnimation_h
   6 #define WebCompositorAnimation_h
   7
   8 namespace blink {
   9
  10 // A compositor driven animation.
  11 class WebCompositorAnimation {
  12 public:
  13     enum TargetProperty {
  14         TargetPropertyTransform = 0,
  15         TargetPropertyOpacity,
  16         TargetPropertyFilter,
  17         TargetPropertyScrollOffset
  18     };
  19
  20     enum Direction {
  21         DirectionNormal = 0,
  22         DirectionReverse,
  23         DirectionAlternate,
  24         DirectionAlternateReverse
  25     };
  26
  27     enum FillMode {
  28         FillModeNone = 0,
  29         FillModeForwards,
  30         FillModeBackwards,
  31         FillModeBoth
  32     };
  33
  34     virtual ~WebCompositorAnimation() { }
  35
  36     // An id must be unique.
  37     virtual int id() = 0;
  38     virtual int group() = 0;
  39
  40     virtual TargetProperty targetProperty() const = 0;
  41
  42     // This is the number of times that the animation will play. If this
  43     // value is zero the animation will not play. If it is negative, then
  44     // the animation will loop indefinitely.
  45     virtual double iterations() const = 0;
  46     virtual void setIterations(double) = 0;
  47
  48     virtual double startTime() const = 0;
  49     virtual void setStartTime(double monotonicTime) = 0;
  50
  51     virtual double timeOffset() const = 0;
  52     virtual void setTimeOffset(double monotonicTime) = 0;
  53
  54     virtual Direction direction() const = 0;
  55     virtual void setDirection(Direction) = 0;
  56
  57     virtual double playbackRate() const = 0;
  58     virtual void setPlaybackRate(double) = 0;
  59
  60     virtual FillMode fillMode() const = 0;
  61     virtual void setFillMode(FillMode)  = 0;
  62
  63     virtual double iterationStart() const = 0;
  64     virtual void setIterationStart(double) = 0;
  65 };
  66
  67 } // namespace blink
  68
  69 #endif // WebCompositorAnimation_h