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/*
* Copyright (C) 2017 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.
*/
package com.android.systemui.statusbar.notification;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.view.View;
import android.widget.ImageView;
import com.android.systemui.R;
import com.android.systemui.animation.Interpolators;
import com.android.systemui.statusbar.notification.stack.StackStateAnimator;
import java.util.function.Consumer;
public class NotificationDozeHelper {
private static final int DOZE_ANIMATOR_TAG = R.id.doze_intensity_tag;
private final ColorMatrix mGrayscaleColorMatrix = new ColorMatrix();
public void fadeGrayscale(final ImageView target, final boolean dark, long delay) {
startIntensityAnimation(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
updateGrayscale(target, (float) animation.getAnimatedValue());
}
}, dark, delay, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
if (!dark) {
target.setColorFilter(null);
}
}
});
}
public void updateGrayscale(ImageView target, boolean dark) {
updateGrayscale(target, dark ? 1 : 0);
}
public void updateGrayscale(ImageView target, float darkAmount) {
if (darkAmount > 0) {
updateGrayscaleMatrix(darkAmount);
target.setColorFilter(new ColorMatrixColorFilter(mGrayscaleColorMatrix));
} else {
target.setColorFilter(null);
}
}
// TODO: this should be using StatusBarStateController#getDozeAmount
public void startIntensityAnimation(ValueAnimator.AnimatorUpdateListener updateListener,
boolean dark, long delay, Animator.AnimatorListener listener) {
float startIntensity = dark ? 0f : 1f;
float endIntensity = dark ? 1f : 0f;
ValueAnimator animator = ValueAnimator.ofFloat(startIntensity, endIntensity);
animator.addUpdateListener(updateListener);
animator.setDuration(StackStateAnimator.ANIMATION_DURATION_WAKEUP);
animator.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN);
animator.setStartDelay(delay);
if (listener != null) {
animator.addListener(listener);
}
animator.start();
}
public void setDozing(Consumer<Float> listener, boolean dozing,
boolean animate, long delay, View view) {
if (animate) {
startIntensityAnimation(a -> listener.accept((Float) a.getAnimatedValue()), dozing,
delay,
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
view.setTag(DOZE_ANIMATOR_TAG, null);
}
@Override
public void onAnimationStart(Animator animation) {
view.setTag(DOZE_ANIMATOR_TAG, animation);
}
} /* listener */);
} else {
Animator animator = (Animator) view.getTag(DOZE_ANIMATOR_TAG);
if (animator != null) {
animator.cancel();
}
listener.accept(dozing ? 1f : 0f);
}
}
public void updateGrayscaleMatrix(float intensity) {
mGrayscaleColorMatrix.setSaturation(1 - intensity);
}
public ColorMatrix getGrayscaleColorMatrix() {
return mGrayscaleColorMatrix;
}
}
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