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The Tor Browser
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AnimationPropertySegment.h (2036B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
      5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef mozilla_dom_AnimationPropertySegment_h
      8 #define mozilla_dom_AnimationPropertySegment_h
      9 
     10 #include "mozilla/Maybe.h"
     11 #include "mozilla/ServoStyleConsts.h"
     12 #include "mozilla/StyleAnimationValue.h"           // For AnimationValue
     13 #include "mozilla/dom/BaseKeyframeTypesBinding.h"  // For CompositeOperation
     14 
     15 namespace mozilla {
     16 
     17 struct AnimationPropertySegment {
     18  float mFromKey, mToKey;
     19  // NOTE: In the case that no keyframe for 0 or 1 offset is specified
     20  // the unit of mFromValue or mToValue is eUnit_Null.
     21  AnimationValue mFromValue, mToValue;
     22 
     23  Maybe<StyleComputedTimingFunction> mTimingFunction;
     24  dom::CompositeOperation mFromComposite = dom::CompositeOperation::Replace;
     25  dom::CompositeOperation mToComposite = dom::CompositeOperation::Replace;
     26 
     27  bool HasReplaceableValues() const {
     28    return HasReplaceableFromValue() && HasReplaceableToValue();
     29  }
     30 
     31  bool HasReplaceableFromValue() const {
     32    return !mFromValue.IsNull() &&
     33           mFromComposite == dom::CompositeOperation::Replace;
     34  }
     35 
     36  bool HasReplaceableToValue() const {
     37    return !mToValue.IsNull() &&
     38           mToComposite == dom::CompositeOperation::Replace;
     39  }
     40 
     41  bool operator==(const AnimationPropertySegment& aOther) const {
     42    return mFromKey == aOther.mFromKey && mToKey == aOther.mToKey &&
     43           mFromValue == aOther.mFromValue && mToValue == aOther.mToValue &&
     44           mTimingFunction == aOther.mTimingFunction &&
     45           mFromComposite == aOther.mFromComposite &&
     46           mToComposite == aOther.mToComposite;
     47  }
     48  bool operator!=(const AnimationPropertySegment& aOther) const {
     49    return !(*this == aOther);
     50  }
     51 };
     52 
     53 }  // namespace mozilla
     54 
     55 #endif  // mozilla_dom_AnimationPropertySegment_h