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package com.mapbox.mapboxsdk.plugins.locationlayer;
import android.os.Handler;
/**
* Class controls the location layer stale state when the {@link android.location.Location} hasn't
* been updated in 'x' amount of time. {@link LocationLayerOptions#staleStateTimeout()} can be used to
* control the amount of time before the locations considered stale.
* {@link LocationLayerOptions#enableStaleState()} is available for disabling this behaviour.
*/
class StaleStateManager {
private final OnLocationStaleListener innerOnLocationStaleListeners;
private final Handler handler;
private boolean isStale = true;
private long delayTime;
StaleStateManager(OnLocationStaleListener innerListener, long delayTime) {
innerOnLocationStaleListeners = innerListener;
this.delayTime = delayTime;
handler = new Handler();
innerOnLocationStaleListeners.onStaleStateChange(true);
}
private Runnable staleStateRunnable = new Runnable() {
@Override
public void run() {
isStale = true;
innerOnLocationStaleListeners.onStaleStateChange(true);
}
};
boolean isStale() {
return isStale;
}
void updateLatestLocationTime() {
if (isStale) {
isStale = false;
innerOnLocationStaleListeners.onStaleStateChange(false);
}
postTheCallback();
}
void setDelayTime(long delayTime) {
this.delayTime = delayTime;
postTheCallback();
}
void onStart() {
if (!isStale) {
postTheCallback();
}
}
void onStop() {
handler.removeCallbacksAndMessages(null);
}
private void postTheCallback() {
handler.removeCallbacksAndMessages(null);
handler.postDelayed(staleStateRunnable, delayTime);
}
}
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