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/*
* Copyright (C) 2022 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.google.android.setupdesign.util;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Color;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.annotation.VisibleForTesting;
import com.airbnb.lottie.LottieAnimationView;
import com.airbnb.lottie.LottieProperty;
import com.airbnb.lottie.SimpleColorFilter;
import com.airbnb.lottie.model.KeyPath;
import com.airbnb.lottie.value.LottieValueCallback;
import com.google.android.setupcompat.partnerconfig.PartnerConfig;
import com.google.android.setupcompat.partnerconfig.PartnerConfigHelper;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/** A helper to help apply color on lottie animation */
public class LottieAnimationHelper {
private static final String TAG = "LottieAnimationHelper";
private static LottieAnimationHelper instance = null;
@VisibleForTesting public final Map<String, Integer> colorResourceMapping;
public static LottieAnimationHelper get() {
if (instance == null) {
instance = new LottieAnimationHelper();
}
return instance;
}
private LottieAnimationHelper() {
colorResourceMapping = new HashMap<>();
}
/**
* The color resource is from PartnerConfig, which is a string array and each string will be
* {key_path_name}:@{color_reference} or {key_path_name}:{color code}
*/
public void applyColor(
@NonNull Context context, LottieAnimationView lottieView, PartnerConfig partnerConfig) {
applyColor(
context,
lottieView,
PartnerConfigHelper.get(context).getStringArray(context, partnerConfig));
}
/**
* The color resource is from list of string and each string will be
* {key_path_name}:@{color_reference} or {key_path_name}:#{color code}
*/
public void applyColor(
@NonNull Context context, LottieAnimationView lottieView, List<String> colorMappings) {
applyColor(context, lottieView, parseColorMapping(context, colorMappings));
}
/**
* The color resource is from a color mapping table and the key is the keypath, and value is color
* Integer.
*/
public void applyColor(
@NonNull Context context,
LottieAnimationView lottieView,
Map<KeyPath, Integer> colorMappings) {
for (KeyPath keyPath : colorMappings.keySet()) {
lottieView.addValueCallback(
keyPath,
LottieProperty.COLOR_FILTER,
new LottieValueCallback<>(new SimpleColorFilter(colorMappings.get(keyPath))));
}
}
private Map<KeyPath, Integer> parseColorMapping(
@NonNull Context context, List<String> colorMappings) {
Map<KeyPath, Integer> customizationMap = new HashMap<>();
for (String colorMapping : colorMappings) {
String[] splitItem = colorMapping.split(":");
if (splitItem.length == 2) {
if (splitItem[1].charAt(0) == '#') { // color code
try {
customizationMap.put(
new KeyPath("**", splitItem[0], "**"), Color.parseColor(splitItem[1]));
} catch (IllegalArgumentException exception) {
Log.e(TAG, "Unknown color, value=" + colorMapping);
}
} else if (splitItem[1].charAt(0) == '@') { // color resource
int colorResourceId;
if (colorResourceMapping.containsKey(splitItem[1])) {
colorResourceId = colorResourceMapping.get(splitItem[1]);
} else {
colorResourceId =
context
.getResources()
.getIdentifier(splitItem[1].substring(1), "color", context.getPackageName());
colorResourceMapping.put(splitItem[1], colorResourceId);
}
try {
customizationMap.put(
new KeyPath("**", splitItem[0], "**"),
context.getResources().getColor(colorResourceId, null));
} catch (Resources.NotFoundException exception) {
Log.e(TAG, "Resource Not found, resource value=" + colorMapping);
}
} else {
Log.w(TAG, "incorrect format customization, value=" + colorMapping);
}
} else {
Log.w(TAG, "incorrect format customization, value=" + colorMapping);
}
}
return customizationMap;
}
}
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