HomescreenCollectionWidgetService.java

/*
This file is part of ZAX.

	ZAX is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	ZAX 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.

	You should have received a copy of the GNU General Public License
	along with ZAX.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.inovex.zabbixmobile.data;

import java.util.TreeSet;

import android.annotation.TargetApi;
import android.appwidget.AppWidgetManager;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.widget.RemoteViews;
import android.widget.RemoteViewsService;

import com.inovex.zabbixmobile.R;
import com.inovex.zabbixmobile.activities.ProblemsActivity;
import com.inovex.zabbixmobile.model.HostGroup;
import com.inovex.zabbixmobile.model.Trigger;
import com.inovex.zabbixmobile.model.TriggerSeverity;
import com.j256.ormlite.android.apptools.OpenHelperManager;

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class HomescreenCollectionWidgetService extends RemoteViewsService {

	@Override
	public RemoteViewsFactory onGetViewFactory(Intent intent) {
		return new CollectionRemoteViewsFactory(this.getApplicationContext(),
				intent);
	}

	class CollectionRemoteViewsFactory implements RemoteViewsFactory {

		private Context mContext;
		private int mAppWidgetId;
		private TreeSet<Trigger> mWidgetItems = new TreeSet<Trigger>();
		private DatabaseHelper mDatabaseHelper;

		public CollectionRemoteViewsFactory(Context context, Intent intent) {
			mContext = context;
			mAppWidgetId = intent.getIntExtra(
					AppWidgetManager.EXTRA_APPWIDGET_ID,
					AppWidgetManager.INVALID_APPWIDGET_ID);
		}

		@Override
		public void onCreate() {
			// set up database connection to be able to query the problems later
			if (mDatabaseHelper == null) {
				// set up SQLite connection using OrmLite
				mDatabaseHelper = OpenHelperManager.getHelper(
						getApplicationContext(), DatabaseHelper.class);
			}
		}

		@Override
		public void onDataSetChanged() {
			mWidgetItems.clear();
			mWidgetItems.addAll(mDatabaseHelper
					.getProblemsBySeverityAndHostGroupId(TriggerSeverity.ALL,
							HostGroup.GROUP_ID_ALL));
		}

		@Override
		public void onDestroy() {
			if (mDatabaseHelper != null)
				mDatabaseHelper.close();
		}

		@Override
		public int getCount() {
			return mWidgetItems.size();
		}

		@Override
		public RemoteViews getViewAt(int position) {
			RemoteViews rv = new RemoteViews(mContext.getPackageName(),
					R.layout.homescreen_widget_list_item);
			if (mWidgetItems.size() > position) {
				Trigger trigger = (Trigger) mWidgetItems.toArray()[position];
				rv.setImageViewResource(R.id.status, trigger.getPriority()
						.getImageResourceId());
				rv.setTextViewText(R.id.host, trigger.getHostNames());
				rv.setTextViewText(R.id.description, trigger.getDescription());

				// on click intent
				Intent fillInIntent = new Intent();
				fillInIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
				fillInIntent.putExtra(ProblemsActivity.ARG_TRIGGER_POSITION,
						position);
				rv.setOnClickFillInIntent(R.id.widget_item, fillInIntent);
			}
			return rv;
		}

		@Override
		public RemoteViews getLoadingView() {
			// TODO Auto-generated method stub
			return null;
		}

		@Override
		public int getViewTypeCount() {
			return 1;
		}

		@Override
		public long getItemId(int position) {
			return position;
		}

		@Override
		public boolean hasStableIds() {
			return false;
		}

	}
}