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/*
* Copyright (C) 2021 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.launcher3.taskbar;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ObjectAnimator;
import android.annotation.Nullable;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.View;
import androidx.annotation.ColorInt;
import androidx.core.content.ContextCompat;
import com.android.launcher3.LauncherAnimUtils;
import com.android.launcher3.R;
public class StashedHandleView extends View {
private static final long COLOR_CHANGE_DURATION = 120;
private final @ColorInt int mStashedHandleLightColor;
private final @ColorInt int mStashedHandleDarkColor;
private final Rect mSampledRegion = new Rect();
private final int[] mTmpArr = new int[2];
private @Nullable ObjectAnimator mColorChangeAnim;
public StashedHandleView(Context context) {
this(context, null);
}
public StashedHandleView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public StashedHandleView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public StashedHandleView(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mStashedHandleLightColor = ContextCompat.getColor(context,
R.color.taskbar_stashed_handle_light_color);
mStashedHandleDarkColor = ContextCompat.getColor(context,
R.color.taskbar_stashed_handle_dark_color);
}
/**
* Updates mSampledRegion to be the location of the stashedHandleBounds relative to the screen.
* @see #getSampledRegion()
*/
public void updateSampledRegion(Rect stashedHandleBounds) {
getLocationOnScreen(mTmpArr);
mSampledRegion.set(stashedHandleBounds);
mSampledRegion.offset(mTmpArr[0], mTmpArr[1]);
}
public Rect getSampledRegion() {
return mSampledRegion;
}
/**
* Updates the handle color.
* @param isRegionDark Whether the background behind the handle is dark, and thus the handle
* should be light (and vice versa).
* @param animate Whether to animate the change, or apply it immediately.
*/
public void updateHandleColor(boolean isRegionDark, boolean animate) {
int newColor = isRegionDark ? mStashedHandleLightColor : mStashedHandleDarkColor;
if (mColorChangeAnim != null) {
mColorChangeAnim.cancel();
}
if (animate) {
mColorChangeAnim = ObjectAnimator.ofArgb(this,
LauncherAnimUtils.VIEW_BACKGROUND_COLOR, newColor);
mColorChangeAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mColorChangeAnim = null;
}
});
mColorChangeAnim.setDuration(COLOR_CHANGE_DURATION);
mColorChangeAnim.start();
} else {
setBackgroundColor(newColor);
}
}
}
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