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| 1 /* | |
| 2 * Copyright (C) 2013 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef SKY_ENGINE_CORE_ANIMATION_TIMING_H_ | |
| 32 #define SKY_ENGINE_CORE_ANIMATION_TIMING_H_ | |
| 33 | |
| 34 #include "sky/engine/platform/animation/TimingFunction.h" | |
| 35 #include "sky/engine/wtf/MathExtras.h" | |
| 36 #include "sky/engine/wtf/RefPtr.h" | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 struct Timing { | |
| 41 enum FillMode { | |
| 42 FillModeAuto, | |
| 43 FillModeNone, | |
| 44 FillModeForwards, | |
| 45 FillModeBackwards, | |
| 46 FillModeBoth | |
| 47 }; | |
| 48 | |
| 49 enum PlaybackDirection { | |
| 50 PlaybackDirectionNormal, | |
| 51 PlaybackDirectionReverse, | |
| 52 PlaybackDirectionAlternate, | |
| 53 PlaybackDirectionAlternateReverse | |
| 54 }; | |
| 55 | |
| 56 static const Timing& defaults() | |
| 57 { | |
| 58 DEFINE_STATIC_LOCAL(Timing, timing, ()); | |
| 59 return timing; | |
| 60 } | |
| 61 | |
| 62 Timing() | |
| 63 : startDelay(0) | |
| 64 , endDelay(0) | |
| 65 , fillMode(FillModeAuto) | |
| 66 , iterationStart(0) | |
| 67 , iterationCount(1) | |
| 68 , iterationDuration(std::numeric_limits<double>::quiet_NaN()) | |
| 69 , playbackRate(1) | |
| 70 , direction(PlaybackDirectionNormal) | |
| 71 , timingFunction(LinearTimingFunction::shared()) | |
| 72 { | |
| 73 } | |
| 74 | |
| 75 void assertValid() const | |
| 76 { | |
| 77 ASSERT(std::isfinite(startDelay)); | |
| 78 ASSERT(std::isfinite(endDelay)); | |
| 79 ASSERT(std::isfinite(iterationStart)); | |
| 80 ASSERT(iterationStart >= 0); | |
| 81 ASSERT(iterationCount >= 0); | |
| 82 ASSERT(std::isnan(iterationDuration) || iterationDuration >= 0); | |
| 83 ASSERT(std::isfinite(playbackRate)); | |
| 84 ASSERT(timingFunction); | |
| 85 } | |
| 86 | |
| 87 double startDelay; | |
| 88 double endDelay; | |
| 89 FillMode fillMode; | |
| 90 double iterationStart; | |
| 91 double iterationCount; | |
| 92 double iterationDuration; | |
| 93 double playbackRate; | |
| 94 PlaybackDirection direction; | |
| 95 RefPtr<TimingFunction> timingFunction; | |
| 96 }; | |
| 97 | |
| 98 } // namespace blink | |
| 99 | |
| 100 #endif // SKY_ENGINE_CORE_ANIMATION_TIMING_H_ | |
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