/**
* Copyright (c) 2017-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.litho.dataflow;
/**
* Test node whose value is based on the number of frames it's seen.
*/
public class NumFramesNode extends ValueNode implements NodeCanFinish {
private int mNumFramesSeen = 0;
private long mLastFrameTime = Long.MIN_VALUE;
@Override
protected float calculateValue(long frameTimeNanos) {
if (mLastFrameTime != frameTimeNanos) {
mLastFrameTime = frameTimeNanos;
mNumFramesSeen++;
}
return (float) mNumFramesSeen;
}
@Override
public boolean isFinished() {
return false;
}
@Override
public void onInputsFinished() {
}
}