1 | /* |
2 | * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
3 | * (C) 2000 Antti Koivisto (koivisto@kde.org) |
4 | * (C) 2000 Dirk Mueller (mueller@kde.org) |
5 | * Copyright (C) 2003-2017 Apple Inc. All rights reserved. |
6 | * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com) |
7 | * |
8 | * This library is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU Library General Public |
10 | * License as published by the Free Software Foundation; either |
11 | * version 2 of the License, or (at your option) any later version. |
12 | * |
13 | * This library is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | * Library General Public License for more details. |
17 | * |
18 | * You should have received a copy of the GNU Library General Public License |
19 | * along with this library; see the file COPYING.LIB. If not, write to |
20 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | * Boston, MA 02110-1301, USA. |
22 | * |
23 | */ |
24 | |
25 | #pragma once |
26 | |
27 | #include "CSSPropertyNames.h" |
28 | #include "RenderStyleConstants.h" |
29 | #include "StyleScope.h" |
30 | #include "TimingFunction.h" |
31 | |
32 | namespace WebCore { |
33 | |
34 | class Animation : public RefCounted<Animation> { |
35 | public: |
36 | WEBCORE_EXPORT ~Animation(); |
37 | |
38 | static Ref<Animation> create() { return adoptRef(*new Animation); } |
39 | static Ref<Animation> create(const Animation& other) { return adoptRef(*new Animation(other)); } |
40 | |
41 | bool isDelaySet() const { return m_delaySet; } |
42 | bool isDirectionSet() const { return m_directionSet; } |
43 | bool isDurationSet() const { return m_durationSet; } |
44 | bool isFillModeSet() const { return m_fillModeSet; } |
45 | bool isIterationCountSet() const { return m_iterationCountSet; } |
46 | bool isNameSet() const { return m_nameSet; } |
47 | bool isPlayStateSet() const { return m_playStateSet; } |
48 | bool isPropertySet() const { return m_propertySet; } |
49 | bool isTimingFunctionSet() const { return m_timingFunctionSet; } |
50 | |
51 | // Flags this to be the special "none" animation (animation-name: none) |
52 | bool isNoneAnimation() const { return m_isNone; } |
53 | |
54 | // We can make placeholder Animation objects to keep the comma-separated lists |
55 | // of properties in sync. isValidAnimation means this is not a placeholder. |
56 | bool isValidAnimation() const { return !m_isNone && !m_name.isEmpty(); } |
57 | |
58 | bool isEmpty() const |
59 | { |
60 | return !m_directionSet && !m_durationSet && !m_fillModeSet |
61 | && !m_nameSet && !m_playStateSet && !m_iterationCountSet |
62 | && !m_delaySet && !m_timingFunctionSet && !m_propertySet; |
63 | } |
64 | |
65 | bool isEmptyOrZeroDuration() const |
66 | { |
67 | return isEmpty() || (m_duration == 0 && m_delay <= 0); |
68 | } |
69 | |
70 | void clearDelay() { m_delaySet = false; } |
71 | void clearDirection() { m_directionSet = false; } |
72 | void clearDuration() { m_durationSet = false; } |
73 | void clearFillMode() { m_fillModeSet = false; } |
74 | void clearIterationCount() { m_iterationCountSet = false; } |
75 | void clearName() { m_nameSet = false; } |
76 | void clearPlayState() { m_playStateSet = false; } |
77 | void clearProperty() { m_propertySet = false; } |
78 | void clearTimingFunction() { m_timingFunctionSet = false; } |
79 | |
80 | void clearAll() |
81 | { |
82 | clearDelay(); |
83 | clearDirection(); |
84 | clearDuration(); |
85 | clearFillMode(); |
86 | clearIterationCount(); |
87 | clearName(); |
88 | clearPlayState(); |
89 | clearProperty(); |
90 | clearTimingFunction(); |
91 | } |
92 | |
93 | double delay() const { return m_delay; } |
94 | |
95 | enum AnimationMode { |
96 | AnimateAll, |
97 | AnimateNone, |
98 | AnimateSingleProperty, |
99 | AnimateUnknownProperty |
100 | }; |
101 | |
102 | enum AnimationDirection { |
103 | AnimationDirectionNormal, |
104 | AnimationDirectionAlternate, |
105 | AnimationDirectionReverse, |
106 | AnimationDirectionAlternateReverse |
107 | }; |
108 | |
109 | AnimationDirection direction() const { return static_cast<AnimationDirection>(m_direction); } |
110 | bool directionIsForwards() const { return m_direction == AnimationDirectionNormal || m_direction == AnimationDirectionAlternate; } |
111 | |
112 | AnimationFillMode fillMode() const { return static_cast<AnimationFillMode>(m_fillMode); } |
113 | |
114 | double duration() const { return m_duration; } |
115 | |
116 | enum { IterationCountInfinite = -1 }; |
117 | double iterationCount() const { return m_iterationCount; } |
118 | const String& name() const { return m_name; } |
119 | Style::ScopeOrdinal nameStyleScopeOrdinal() const { return m_nameStyleScopeOrdinal; } |
120 | AnimationPlayState playState() const { return static_cast<AnimationPlayState>(m_playState); } |
121 | CSSPropertyID property() const { return m_property; } |
122 | const String& unknownProperty() const { return m_unknownProperty; } |
123 | TimingFunction* timingFunction() const { return m_timingFunction.get(); } |
124 | AnimationMode animationMode() const { return static_cast<AnimationMode>(m_mode); } |
125 | |
126 | void setDelay(double c) { m_delay = c; m_delaySet = true; } |
127 | void setDirection(AnimationDirection d) { m_direction = d; m_directionSet = true; } |
128 | void setDuration(double d) { ASSERT(d >= 0); m_duration = d; m_durationSet = true; } |
129 | void setFillMode(AnimationFillMode f) { m_fillMode = static_cast<unsigned>(f); m_fillModeSet = true; } |
130 | void setIterationCount(double c) { m_iterationCount = c; m_iterationCountSet = true; } |
131 | void setName(const String& name, Style::ScopeOrdinal scope = Style::ScopeOrdinal::Element) |
132 | { |
133 | m_name = name; |
134 | m_nameStyleScopeOrdinal = scope; |
135 | m_nameSet = true; |
136 | } |
137 | void setPlayState(AnimationPlayState d) { m_playState = static_cast<unsigned>(d); m_playStateSet = true; } |
138 | void setProperty(CSSPropertyID t) { m_property = t; m_propertySet = true; } |
139 | void setUnknownProperty(const String& property) { m_unknownProperty = property; } |
140 | void setTimingFunction(RefPtr<TimingFunction>&& function) { m_timingFunction = WTFMove(function); m_timingFunctionSet = true; } |
141 | void setAnimationMode(AnimationMode mode) { m_mode = static_cast<unsigned>(mode); } |
142 | |
143 | void setIsNoneAnimation(bool n) { m_isNone = n; } |
144 | |
145 | Animation& operator=(const Animation& o); |
146 | |
147 | // return true if all members of this class match (excluding m_next) |
148 | bool animationsMatch(const Animation&, bool matchProperties = true) const; |
149 | |
150 | // return true every Animation in the chain (defined by m_next) match |
151 | bool operator==(const Animation& o) const { return animationsMatch(o); } |
152 | bool operator!=(const Animation& o) const { return !(*this == o); } |
153 | |
154 | bool fillsBackwards() const { return m_fillModeSet && (fillMode() == AnimationFillMode::Backwards || fillMode() == AnimationFillMode::Both); } |
155 | bool fillsForwards() const { return m_fillModeSet && (fillMode() == AnimationFillMode::Forwards || fillMode() == AnimationFillMode::Both); } |
156 | |
157 | private: |
158 | WEBCORE_EXPORT Animation(); |
159 | Animation(const Animation& o); |
160 | |
161 | // Packs with m_refCount from the base class. |
162 | CSSPropertyID m_property { CSSPropertyInvalid }; |
163 | |
164 | String m_name; |
165 | String m_unknownProperty; |
166 | double m_iterationCount; |
167 | double m_delay; |
168 | double m_duration; |
169 | RefPtr<TimingFunction> m_timingFunction; |
170 | |
171 | Style::ScopeOrdinal m_nameStyleScopeOrdinal { Style::ScopeOrdinal::Element }; |
172 | |
173 | unsigned m_mode : 2; // AnimationMode |
174 | unsigned m_direction : 2; // AnimationDirection |
175 | unsigned m_fillMode : 2; // AnimationFillMode |
176 | unsigned m_playState : 2; // AnimationPlayState |
177 | |
178 | bool m_delaySet : 1; |
179 | bool m_directionSet : 1; |
180 | bool m_durationSet : 1; |
181 | bool m_fillModeSet : 1; |
182 | bool m_iterationCountSet : 1; |
183 | bool m_nameSet : 1; |
184 | bool m_playStateSet : 1; |
185 | bool m_propertySet : 1; |
186 | bool m_timingFunctionSet : 1; |
187 | |
188 | bool m_isNone : 1; |
189 | |
190 | public: |
191 | static double initialDelay() { return 0; } |
192 | static AnimationDirection initialDirection() { return AnimationDirectionNormal; } |
193 | static double initialDuration() { return 0; } |
194 | static AnimationFillMode initialFillMode() { return AnimationFillMode::None; } |
195 | static double initialIterationCount() { return 1.0; } |
196 | static const String& initialName(); |
197 | static AnimationPlayState initialPlayState() { return AnimationPlayState::Playing; } |
198 | static CSSPropertyID initialProperty() { return CSSPropertyInvalid; } |
199 | static Ref<TimingFunction> initialTimingFunction() { return CubicBezierTimingFunction::create(); } |
200 | }; |
201 | |
202 | } // namespace WebCore |
203 | |