1/*
2 * Copyright (C) 2018-2019 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 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#pragma once
27
28namespace WebCore {
29
30template<typename ValueType>
31class SVGAnimationDiscreteFunction : public SVGAnimationFunction {
32public:
33 SVGAnimationDiscreteFunction(AnimationMode animationMode, CalcMode, bool, bool)
34 : SVGAnimationFunction(animationMode)
35 {
36 }
37
38 bool isDiscrete() const override { return true; }
39
40 void setToAtEndOfDurationValue(const String&) override
41 {
42 ASSERT_NOT_REACHED();
43 }
44
45 void setFromAndByValues(SVGElement*, const String&, const String&) override
46 {
47 ASSERT_NOT_REACHED();
48 }
49
50 void animate(SVGElement*, float progress, unsigned, ValueType& animated)
51 {
52 if ((m_animationMode == AnimationMode::FromTo && progress > 0.5) || m_animationMode == AnimationMode::To || progress == 1)
53 animated = m_to;
54 else
55 animated = m_from;
56 }
57
58protected:
59 ValueType m_from;
60 ValueType m_to;
61};
62
63}
64