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/*
* Copyright (C) 2015 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.messaging.util;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import androidx.appcompat.graphics.drawable.DrawableWrapper;
/*
* This is directly copied from v7/appcompat/src/androidx.appcompat.internal/widget/TintManager.java
*/
/**
* A {@link DrawableWrapper} which updates it's color filter using a {@link ColorStateList}.
*/
class TintDrawableWrapper extends DrawableWrapper {
private final ColorStateList mTintStateList;
private final PorterDuff.Mode mTintMode;
private int mCurrentColor;
public TintDrawableWrapper(Drawable drawable, ColorStateList tintStateList) {
this(drawable, tintStateList, PorterDuff.Mode.SRC_IN);
}
public TintDrawableWrapper(Drawable drawable, ColorStateList tintStateList,
PorterDuff.Mode tintMode) {
super(drawable);
mTintStateList = tintStateList;
mTintMode = tintMode;
}
@Override
public boolean isStateful() {
return (mTintStateList != null && mTintStateList.isStateful()) || super.isStateful();
}
@Override
public boolean setState(int[] stateSet) {
boolean handled = super.setState(stateSet);
handled = updateTint(stateSet) || handled;
return handled;
}
private boolean updateTint(int[] state) {
if (mTintStateList != null) {
final int color = mTintStateList.getColorForState(state, mCurrentColor);
if (color != mCurrentColor) {
if (color != Color.TRANSPARENT) {
setColorFilter(color, mTintMode);
} else {
clearColorFilter();
}
mCurrentColor = color;
return true;
}
}
return false;
}
}