forked from upstream-mirrors/OpenTracks
merge heads
This commit is contained in:
Jimmy Shih
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/*
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* Copyright 2011 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.android.apps.mytracks.widgets;
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import static com.google.android.apps.mytracks.Constants.SETTINGS_NAME;
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import static com.google.android.apps.mytracks.Constants.TAG;
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import com.google.android.apps.mytracks.MyTracks;
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import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
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import com.google.android.apps.mytracks.content.Track;
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import com.google.android.apps.mytracks.content.TracksColumns;
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import com.google.android.apps.mytracks.services.ControlRecordingService;
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import com.google.android.apps.mytracks.stats.TripStatistics;
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import com.google.android.apps.mytracks.util.StringUtils;
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import com.google.android.maps.mytracks.R;
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import android.app.PendingIntent;
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import android.appwidget.AppWidgetManager;
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import android.appwidget.AppWidgetProvider;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
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import android.database.ContentObserver;
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import android.os.Handler;
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import android.util.Log;
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import android.widget.RemoteViews;
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/**
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* An AppWidgetProvider for displaying key track statistics (distance, time,
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* speed) from the current or most recent track.
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*
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* @author Sandor Dornbush
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* @author Paul R. Saxman
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*/
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public class TrackWidgetProvider
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extends AppWidgetProvider
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implements OnSharedPreferenceChangeListener {
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class TrackObserver extends ContentObserver {
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public TrackObserver() {
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super(contentHandler);
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}
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public void onChange(boolean selfChange) {
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updateTrack(null);
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}
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}
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private final Handler contentHandler;
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private MyTracksProviderUtils providerUtils;
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private Context context;
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private String unknown;
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private TrackObserver trackObserver;
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private boolean isMetric;
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private boolean reportSpeed;
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private long selectedTrackId;
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private SharedPreferences sharedPreferences;
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private String TRACK_STARTED_ACTION;
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private String TRACK_STOPPED_ACTION;
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public TrackWidgetProvider() {
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super();
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contentHandler = new Handler();
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selectedTrackId = -1;
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}
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private void initialize(Context aContext) {
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if (this.context != null) {
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return;
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}
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this.context = aContext;
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trackObserver = new TrackObserver();
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providerUtils = MyTracksProviderUtils.Factory.get(context);
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unknown = context.getString(R.string.value_unknown);
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sharedPreferences = context.getSharedPreferences(SETTINGS_NAME, Context.MODE_PRIVATE);
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sharedPreferences.registerOnSharedPreferenceChangeListener(this);
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onSharedPreferenceChanged(sharedPreferences, null);
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context.getContentResolver().registerContentObserver(
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TracksColumns.CONTENT_URI, true, trackObserver);
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TRACK_STARTED_ACTION = context.getString(R.string.track_started_broadcast_action);
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TRACK_STOPPED_ACTION = context.getString(R.string.track_stopped_broadcast_action);
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}
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@Override
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public void onReceive(Context aContext, Intent intent) {
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super.onReceive(aContext, intent);
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initialize(aContext);
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selectedTrackId = intent.getLongExtra(
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context.getString(R.string.track_id_broadcast_extra), selectedTrackId);
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String action = intent.getAction();
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Log.d(TAG,
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"TrackWidgetProvider.onReceive: trackId=" + selectedTrackId + ", action=" + action);
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if (AppWidgetManager.ACTION_APPWIDGET_ENABLED.equals(action)
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|| AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)
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|| TRACK_STARTED_ACTION.equals(action)
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|| TRACK_STOPPED_ACTION.equals(action)) {
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updateTrack(action);
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}
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}
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@Override
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public void onDisabled(Context aContext) {
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if (trackObserver != null) {
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aContext.getContentResolver().unregisterContentObserver(trackObserver);
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}
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if (sharedPreferences != null) {
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sharedPreferences.unregisterOnSharedPreferenceChangeListener(this);
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}
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}
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private void updateTrack(String action) {
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Track track = null;
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if (selectedTrackId != -1) {
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Log.d(TAG, "TrackWidgetProvider.updateTrack: Retrieving specified track.");
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track = providerUtils.getTrack(selectedTrackId);
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} else {
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Log.d(TAG, "TrackWidgetProvider.updateTrack: Attempting to retrieve previous track.");
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// TODO we should really read the pref.
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track = providerUtils.getLastTrack();
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}
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AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
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ComponentName widget = new ComponentName(context, TrackWidgetProvider.class);
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RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.track_widget);
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// Make all of the stats open the mytracks activity.
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Intent intent = new Intent(context, MyTracks.class);
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PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
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views.setOnClickPendingIntent(R.id.appwidget_track_statistics, pendingIntent);
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if (action != null) {
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updateViewButton(views, action);
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}
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updateViewTrackStatistics(views, track);
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int[] appWidgetIds = appWidgetManager.getAppWidgetIds(widget);
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for (int appWidgetId : appWidgetIds) {
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appWidgetManager.updateAppWidget(appWidgetId, views);
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}
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}
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/**
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* Update the widget's button with the appropriate intent and icon.
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*
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* @param views The RemoteViews containing the button
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* @param action The action broadcast from the track service
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*/
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private void updateViewButton(RemoteViews views, String action) {
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if (TRACK_STARTED_ACTION.equals(action)) {
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// If a new track is started by this appwidget or elsewhere,
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// toggle the button to active and have it disable the track if pressed.
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setButtonIntent(views, R.string.track_action_end, R.drawable.appwidget_button_enabled);
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} else {
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// If a track is stopped by this appwidget or elsewhere,
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// toggle the button to inactive and have it start a new track if pressed.
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setButtonIntent(views, R.string.track_action_start, R.drawable.appwidget_button_disabled);
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}
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}
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/**
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* Set up the main widget button.
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*
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* @param views The widget views
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* @param action The resource id of the action to fire when the button is pressed
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* @param icon The resource id of the icon to show for the button
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*/
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private void setButtonIntent(RemoteViews views, int action, int icon) {
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Intent intent = new Intent(context, ControlRecordingService.class);
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intent.setAction(context.getString(action));
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PendingIntent pendingIntent = PendingIntent.getService(context, 0,
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intent, PendingIntent.FLAG_UPDATE_CURRENT);
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views.setOnClickPendingIntent(R.id.appwidget_button, pendingIntent);
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views.setImageViewResource(R.id.appwidget_button, icon);
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}
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/**
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* Update the specified widget's view with the distance, time, and speed of
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* the specified track.
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*
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* @param views The RemoteViews to update with statistics
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* @param track The track to extract statistics from.
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*/
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protected void updateViewTrackStatistics(RemoteViews views, Track track) {
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if (track == null) {
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views.setTextViewText(R.id.appwidget_distance_text, unknown);
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views.setTextViewText(R.id.appwidget_time_text, unknown);
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views.setTextViewText(R.id.appwidget_speed_text, unknown);
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return;
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}
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TripStatistics stats = track.getStatistics();
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String distance = StringUtils.formatDistance(context, stats.getTotalDistance(), isMetric);
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String time = StringUtils.formatElapsedTime(stats.getMovingTime());
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String speed = StringUtils.formatSpeed(
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context, stats.getAverageMovingSpeed(), isMetric, reportSpeed);
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views.setTextViewText(R.id.appwidget_distance_text, distance);
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views.setTextViewText(R.id.appwidget_time_text, time);
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views.setTextViewText(R.id.appwidget_speed_text, speed);
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}
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@Override
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public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
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String metricUnitsKey = context.getString(R.string.metric_units_key);
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if (key == null || key.equals(metricUnitsKey)) {
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isMetric = prefs.getBoolean(metricUnitsKey, true);
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}
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String reportSpeedKey = context.getString(R.string.report_speed_key);
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if (key == null || key.equals(reportSpeedKey)) {
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reportSpeed = prefs.getBoolean(reportSpeedKey, true);
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}
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String selectedTrackKey = context.getString(R.string.selected_track_key);
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if (key == null || key.equals(selectedTrackKey)) {
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selectedTrackId = prefs.getLong(selectedTrackKey, -1);
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Log.d(TAG, "TrackWidgetProvider setting selecting track from preference: " + selectedTrackId);
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}
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}
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}
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