Android Open Source - droidparts-battery-widget Event Filter

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License

The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright (C) 2012 Herbert Straub, herbert@linuxhacker.at
 *//from w w  w .  j  a  v a 2s . co m
 * 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 at.linuxhacker.battery;

import android.content.Context;
import at.linuxhacker.notifications.NotificationDistributor;

public class EventFilter {
  private static final long SPEAKER_SILENT_INTERVALL = 7200;

  private NotificationDistributor notificationDistributor = null;
  long lastSpokenTimestamp = 0; // Unix Timestamp in Seconds

  public EventFilter(Context context) {
    this.notificationDistributor = new NotificationDistributor( context );
  }

  public void processPowerPluggedInEvent(
      BatteryStatusEvent batteryStatusEvent ) {
    String text;
    int minutesToFull = batteryStatusEvent.getMinutesToFull( );

    if ( minutesToFull > 0 ) {
      text = "Ladezeit " + minutesToFull + " Minuten";
    } else {
      text = "Vollstndig aufgeladen";
    }
    this.notificationDistributor.displayTextOnScreenOverlay( text );
    this.speakTextUnfiltered( text );
  }

  public void processPowerPluggedOutEvent(
      BatteryStatusEvent batteryStatusEvent ) {
    if ( batteryStatusEvent.getLevel( ) < 99 ) {
      String text = "Nicht vollstndig aufgeladen. Ladestand "
          + batteryStatusEvent.getLevel( ) + "%";
      this.speakTextUnfiltered( text );
      text = "Ladestand " + batteryStatusEvent.getLevel( ) + "%";
      this.notificationDistributor.displayTextOnScreenOverlay( text );
    } else {
      String text = "Vollstndig aufgeladen";
      this.notificationDistributor.speakText( text );
      this.speakTextUnfiltered( text );
      this.notificationDistributor.displayTextOnScreenOverlay( text );
    }
  }

  public void processBatteryFullEvent( BatteryStatusEvent batteryStatusEvent ) {
    String text = "Ladevorgang abgeschlossen";

    this.speakTextUnfiltered( text );
    this.notificationDistributor.displaySystemNotification( text );
  }

  public void processScreenOnEvent( BatteryStatusEvent batteryStatusEvent ) {
    String text = "Ladestand " + batteryStatusEvent.getLevel( ) + "%";

    /*
     * FIXME: We can produce two events in case of plugging the power cable:
     * 1. we get a batteryUpdate Event 2. we get a ScreenOnEvent
     * 
     * What should we do?
     * 
     * The current solution: The Object NotificationScreenOverlay process
     * one Message and drops all later one, until the first message process
     * finished
     */

    // FIXME: this.speakTextFilterd( text );
    this.notificationDistributor.displayTextOnScreenOverlay( text );

  }

  public void processScreenOnEventPluggedInState( int minutesToFull ) {
    String text = "Ladezeit " + minutesToFull + " Minuten";

    // FIXME: this.speakTextFilterd( text );
    this.notificationDistributor.displayTextOnScreenOverlay( text );
    this.notificationDistributor.displaySystemNotification( text );
  }

  private void speakTextFilterd( String text ) {
    if ( System.currentTimeMillis( ) / 1000 - this.lastSpokenTimestamp < EventFilter.SPEAKER_SILENT_INTERVALL ) {
      return;
    }
    
    this.speakTextUnfiltered( text );
  }
  
  private void speakTextUnfiltered( String text ) {
    this.lastSpokenTimestamp = System.currentTimeMillis( ) / 1000;
    this.notificationDistributor.speakText( text );
  }
  
}
Java Source Code List
