1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "PropertyValuesAnimatorSet.h"
#include "RenderNode.h"
#include <algorithm>
namespace android {
namespace uirenderer {
void PropertyValuesAnimatorSet::addPropertyAnimator(PropertyValuesHolder* propertyValuesHolder,
Interpolator* interpolator, nsecs_t startDelay,
nsecs_t duration, int repeatCount,
RepeatMode repeatMode) {
PropertyAnimator* animator = new PropertyAnimator(
propertyValuesHolder, interpolator, startDelay, duration, repeatCount, repeatMode);
mAnimators.emplace_back(animator);
// Check whether any child animator is infinite after adding it them to the set.
if (repeatCount == -1) {
mIsInfinite = true;
}
}
PropertyValuesAnimatorSet::PropertyValuesAnimatorSet() : BaseRenderNodeAnimator(1.0f) {
setStartValue(0);
mLastFraction = 0.0f;
setInterpolator(new LinearInterpolator());
setListener(new PropertyAnimatorSetListener(this));
}
void PropertyValuesAnimatorSet::onFinished(BaseRenderNodeAnimator* animator) {
if (mOneShotListener.get()) {
sp<AnimationListener> listener = std::move(mOneShotListener);
// Set the listener to nullptr before the onAnimationFinished callback, rather than after,
// for two reasons:
// 1) We need to prevent changes to mOneShotListener during the onAnimationFinished
// callback (specifically in AnimationListenerBridge::onAnimationFinished(...) from
// triggering dtor of the bridge and potentially unsafely re-entering
// AnimationListenerBridge::onAnimationFinished(...).
// 2) It's possible that there are changes to the listener during the callback, therefore
// we need to reset the listener before the callback rather than afterwards.
mOneShotListener = nullptr;
listener->onAnimationFinished(animator);
}
}
float PropertyValuesAnimatorSet::getValue(RenderNode* target) const {
return mLastFraction;
}
void PropertyValuesAnimatorSet::setValue(RenderNode* target, float value) {
mLastFraction = value;
}
void PropertyValuesAnimatorSet::onPlayTimeChanged(nsecs_t playTime) {
if (playTime == 0 && mDuration > 0) {
// Reset all the animators
for (auto it = mAnimators.rbegin(); it != mAnimators.rend(); it++) {
// Note that this set may containing animators modifying the same property, so when we
// reset the animators, we need to make sure the animators that end the first will
// have the final say on what the property value should be.
(*it)->setFraction(0, 0);
}
} else {
for (auto& anim : mAnimators) {
anim->setCurrentPlayTime(playTime);
}
}
}
void PropertyValuesAnimatorSet::start(AnimationListener* listener) {
init();
mOneShotListener = listener;
mRequestId++;
BaseRenderNodeAnimator::start();
}
void PropertyValuesAnimatorSet::reverse(AnimationListener* listener) {
init();
mOneShotListener = listener;
mRequestId++;
BaseRenderNodeAnimator::reverse();
}
void PropertyValuesAnimatorSet::reset() {
mRequestId++;
BaseRenderNodeAnimator::reset();
}
void PropertyValuesAnimatorSet::end() {
mRequestId++;
BaseRenderNodeAnimator::end();
}
void PropertyValuesAnimatorSet::init() {
if (mInitialized) {
return;
}
// Sort the animators by their total duration. Note that all the animators in the set start at
// the same time, so the ones with longer total duration (which includes start delay) will
// be the ones that end later.
std::sort(mAnimators.begin(), mAnimators.end(),
[](auto& a, auto& b) { return a->getTotalDuration() < b->getTotalDuration(); });
mDuration = mAnimators.empty() ? 0 : mAnimators[mAnimators.size() - 1]->getTotalDuration();
mInitialized = true;
}
uint32_t PropertyValuesAnimatorSet::dirtyMask() {
return RenderNode::DISPLAY_LIST;
}
PropertyAnimator::PropertyAnimator(PropertyValuesHolder* holder, Interpolator* interpolator,
nsecs_t startDelay, nsecs_t duration, int repeatCount,
RepeatMode repeatMode)
: mPropertyValuesHolder(holder)
, mInterpolator(interpolator)
, mStartDelay(startDelay)
, mDuration(duration) {
if (repeatCount < 0) {
mRepeatCount = UINT32_MAX;
} else {
mRepeatCount = repeatCount;
}
mRepeatMode = repeatMode;
mTotalDuration = ((nsecs_t)mRepeatCount + 1) * mDuration + mStartDelay;
}
void PropertyAnimator::setCurrentPlayTime(nsecs_t playTime) {
if (playTime < mStartDelay) {
return;
}
float currentIterationFraction;
long iteration;
if (playTime >= mTotalDuration) {
// Reached the end of the animation.
iteration = mRepeatCount;
currentIterationFraction = 1.0f;
} else {
// play time here is in range [mStartDelay, mTotalDuration)
iteration = (playTime - mStartDelay) / mDuration;
currentIterationFraction = ((playTime - mStartDelay) % mDuration) / (float)mDuration;
}
setFraction(currentIterationFraction, iteration);
}
void PropertyAnimator::setFraction(float fraction, long iteration) {
double totalFraction = fraction + iteration;
// This makes sure we only set the fraction = repeatCount + 1 once. It is needed because there
// might be another animator modifying the same property after this animator finishes, we need
// to make sure we don't set conflicting values on the same property within one frame.
if ((mLatestFraction == mRepeatCount + 1.0) && (totalFraction >= mRepeatCount + 1.0)) {
return;
}
mLatestFraction = totalFraction;
// Check the play direction (i.e. reverse or restart) every other iteration, and calculate the
// fraction based on the play direction.
if (iteration % 2 && mRepeatMode == RepeatMode::Reverse) {
fraction = 1.0f - fraction;
}
float interpolatedFraction = mInterpolator->interpolate(fraction);
mPropertyValuesHolder->setFraction(interpolatedFraction);
}
void PropertyAnimatorSetListener::onAnimationFinished(BaseRenderNodeAnimator* animator) {
mSet->onFinished(animator);
}
}
}
|
