Android Open Source - EBrowser Downloads List Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Zirco Browser for Android/*www. j av a 2 s.  co m*/
 * 
 * Copyright (C) 2010 J. Devauchelle and contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 3 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

package org.zirco.ui.activities;

import com.mrpej.ebrowser.R;
import org.zirco.controllers.Controller;
import org.zirco.events.EventConstants;
import org.zirco.events.EventController;
import org.zirco.events.IDownloadEventsListener;
import org.zirco.model.adapters.DownloadListAdapter;
import org.zirco.model.items.DownloadItem;

import android.app.ListActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageButton;
import android.widget.ProgressBar;
import android.widget.TextView;

/**
 * Download list activity.
 */
public class DownloadsListActivity extends ListActivity implements IDownloadEventsListener {
  
  private static final int MENU_CLEAR_DOWNLOADS = Menu.FIRST;

  private DownloadListAdapter mAdapter;
  
  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.downloads_list_activity);
        
        setTitle(R.string.DownloadListActivity_Title);
        
        EventController.getInstance().addDownloadListener(this);
        
        fillData();
  }
  
  @Override
  protected void onDestroy() {
    EventController.getInstance().removeDownloadListener(this);
    super.onDestroy();
  }
  
  @Override
    public boolean onCreateOptionsMenu(Menu menu) {
      super.onCreateOptionsMenu(menu);
      
      MenuItem item = menu.add(0, MENU_CLEAR_DOWNLOADS, 0, R.string.DownloadListActivity_RemoveCompletedDownloads);
        item.setIcon(R.drawable.ic_menu_delete);
        
        return true;
  }
  
  @Override
    public boolean onMenuItemSelected(int featureId, MenuItem item) {
    
    switch(item.getItemId()) {
    case MENU_CLEAR_DOWNLOADS:
      Controller.getInstance().clearCompletedDownloads();
      fillData();
      return true;
    default: return super.onMenuItemSelected(featureId, item);
    }
  }

  /**
   * Fill the download list.
   */
  private void fillData() {
    mAdapter = new DownloadListAdapter(this, Controller.getInstance().getDownloadList());
    setListAdapter(mAdapter);
  }

  @Override
  public void onDownloadEvent(String event, Object data) {
    if (event.equals(EventConstants.EVT_DOWNLOAD_ON_START)) {
      fillData();
    } else if (event.equals(EventConstants.EVT_DOWNLOAD_ON_PROGRESS)) {        
      if (data != null) {
        DownloadItem item = (DownloadItem) data;
        ProgressBar bar = mAdapter.getBarMap().get(item);
        if (bar != null) {
          bar.setMax(100);
          bar.setProgress(item.getProgress());
        }        
      }
    } else if (event.equals(EventConstants.EVT_DOWNLOAD_ON_FINISHED)) {
      if (data != null) {
        DownloadItem item = (DownloadItem) data;
        
        TextView title = mAdapter.getTitleMap().get(item);
        if (title != null) {
          if (item.isAborted()) {
            title.setText(String.format(getResources().getString(R.string.DownloadListActivity_Aborted), item.getFileName()));
          } else {
            title.setText(String.format(getResources().getString(R.string.DownloadListActivity_Finished), item.getFileName()));
          }
        }
        
        ProgressBar bar = mAdapter.getBarMap().get(item);
        if (bar != null) {          
          bar.setProgress(bar.getMax());
        }
        
        ImageButton button = mAdapter.getButtonMap().get(item);
        if (button != null) {
          button.setEnabled(false);
        }
      }
    }
    
  }
  
}

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