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package de.pixart.messenger.ui.util;
/**
* Created by mxf on 2018/4/3.
*/
public class PendingActionHelper {
private PendingAction pendingAction;
public void push(PendingAction pendingAction) {
this.pendingAction = pendingAction;
}
public void execute() {
if (pendingAction != null) {
pendingAction.execute();
pendingAction = null;
}
}
public void undo() {
pendingAction = null;
}
public interface PendingAction {
void execute();
}
}
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