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 /*
  * Copyright 2010 Google Inc.
  * 
  * 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 elemental.util;
import static elemental.client.Browser.getWindow;
A simplified, browser-safe timer class. This class serves the same purpose as java.util.Timer, but is simplified because of the single-threaded environment. To schedule a timer, simply create a subclass of it (overriding run()) and call schedule(int) or scheduleRepeating(int).
public abstract class Timer {
  private boolean isRepeating;
  private int timerId;

  
Cancels this timer.
  public void cancel() {
    if () {
    } else {
    }
  }

  
This method will be called when a timer fires. Override it to implement the timer's logic.
  public abstract void run();

  
Schedules a timer to elapse in the future.

Parameters:
delayMillis how long to wait before the timer elapses, in milliseconds
  public void schedule(int delayMillis) {
    if (delayMillis <= 0) {
      throw new IllegalArgumentException("must be positive");
    }
    cancel();
     = false;
      @Override
      public void onTimeoutHandler() {
        run();
      }
    }, delayMillis);
  }

  
Schedules a timer that elapses repeatedly.

Parameters:
periodMillis how long to wait before the timer elapses, in milliseconds, between each repetition
  public void scheduleRepeating(int periodMillis) {
    if (periodMillis <= 0) {
      throw new IllegalArgumentException("must be positive");
    }
    cancel();
     = true;
      @Override
      public void onTimeoutHandler() {
        run();
      }
    }, periodMillis);
  }
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