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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "core/animation/animatable/AnimatableValue.h" | 32 #include "core/animation/animatable/AnimatableValue.h" |
33 | 33 |
34 #include "core/animation/animatable/AnimatableNeutral.h" | 34 #include "core/animation/animatable/AnimatableNeutral.h" |
35 #include "wtf/StdLibExtras.h" | 35 #include "wtf/StdLibExtras.h" |
36 #include <algorithm> | 36 #include <algorithm> |
37 | 37 |
38 namespace { | |
39 | |
40 const double defaultDistance = 1; | |
41 | |
42 } // namespace | |
43 | |
44 namespace blink { | 38 namespace blink { |
45 | 39 |
46 const AnimatableValue* AnimatableValue::neutralValue() | 40 const AnimatableValue* AnimatableValue::neutralValue() |
47 { | 41 { |
48 DEFINE_STATIC_REF_WILL_BE_PERSISTENT(AnimatableNeutral, neutralSentinelValue
, (AnimatableNeutral::create())); | 42 DEFINE_STATIC_REF_WILL_BE_PERSISTENT(AnimatableNeutral, neutralSentinelValue
, (AnimatableNeutral::create())); |
49 return neutralSentinelValue; | 43 return neutralSentinelValue; |
50 } | 44 } |
51 | 45 |
52 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableValue::interpolate(const Anima
tableValue* left, const AnimatableValue* right, double fraction) | 46 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableValue::interpolate(const Anima
tableValue* left, const AnimatableValue* right, double fraction) |
53 { | 47 { |
54 ASSERT(left); | 48 ASSERT(left); |
55 ASSERT(right); | 49 ASSERT(right); |
56 ASSERT(!left->isNeutral()); | 50 ASSERT(!left->isNeutral()); |
57 ASSERT(!right->isNeutral()); | 51 ASSERT(!right->isNeutral()); |
58 | 52 |
59 if (fraction && fraction != 1 && left->isSameType(right)) | 53 if (fraction && fraction != 1 && left->isSameType(right)) |
60 return left->interpolateTo(right, fraction); | 54 return left->interpolateTo(right, fraction); |
61 | 55 |
62 return defaultInterpolateTo(left, right, fraction); | 56 return defaultInterpolateTo(left, right, fraction); |
63 } | 57 } |
64 | 58 |
65 double AnimatableValue::distance(const AnimatableValue* left, const AnimatableVa
lue* right) | |
66 { | |
67 ASSERT(left); | |
68 ASSERT(right); | |
69 | |
70 if (left->isSameType(right)) | |
71 return left->distanceTo(right); | |
72 | |
73 return defaultDistance; | |
74 } | |
75 | |
76 double AnimatableValue::distanceTo(const AnimatableValue*) const | |
77 { | |
78 return defaultDistance; | |
79 } | |
80 | |
81 } // namespace blink | 59 } // namespace blink |
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