/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
package com.facebook.react.animated;
import com.facebook.react.bridge.JSApplicationCausedNativeException;
import com.facebook.react.bridge.ReadableArray;
import com.facebook.react.bridge.ReadableMap;
/**
* Animated node that plays a role of value aggregator. It takes two or more value nodes as an input
* and outputs a sum of values outputted by those nodes.
*/
/*package*/ class AdditionAnimatedNode extends ValueAnimatedNode {
private final NativeAnimatedNodesManager mNativeAnimatedNodesManager;
private final int[] mInputNodes;
public AdditionAnimatedNode(
ReadableMap config,
NativeAnimatedNodesManager nativeAnimatedNodesManager) {
mNativeAnimatedNodesManager = nativeAnimatedNodesManager;
ReadableArray inputNodes = config.getArray("input");
mInputNodes = new int[inputNodes.size()];
for (int i = 0; i < mInputNodes.length; i++) {
mInputNodes[i] = inputNodes.getInt(i);
}
}
@Override
public void update() {
mValue = 0;
for (int i = 0; i < mInputNodes.length; i++) {
AnimatedNode animatedNode = mNativeAnimatedNodesManager.getNodeById(mInputNodes[i]);
if (animatedNode != null && animatedNode instanceof ValueAnimatedNode) {
mValue += ((ValueAnimatedNode) animatedNode).getValue();
} else {
throw new JSApplicationCausedNativeException("Illegal node ID set as an input for " +
"Animated.Add node");
}
}
}
}