DigitalWidgetViewsFactory.java revision 8b358270895174a9220fea8611f3e426f0dafe3d 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.alarmclock;
18
19import android.app.PendingIntent;
20import android.appwidget.AppWidgetManager;
21import android.content.BroadcastReceiver;
22import android.content.Context;
23import android.content.Intent;
24import android.content.IntentFilter;
25import android.provider.Settings;
26import android.text.TextUtils;
27import android.text.format.DateFormat;
28import android.util.Log;
29import android.util.TypedValue;
30import android.view.View;
31import android.widget.RemoteViews;
32import android.widget.RemoteViewsService.RemoteViewsFactory;
33
34import com.android.deskclock.Alarms;
35import com.android.deskclock.R;
36import com.android.deskclock.Utils;
37import com.android.deskclock.worldclock.CityObj;
38import com.android.deskclock.worldclock.WorldClockAdapter;
39
40import java.util.Calendar;
41import java.util.Locale;
42import java.util.TimeZone;
43
44public class DigitalWidgetViewsFactory extends BroadcastReceiver implements RemoteViewsFactory {
45    private static final String TAG = "DigitalWidgetViewsFactory";
46
47    private Context mContext;
48    private int mId = AppWidgetManager.INVALID_APPWIDGET_ID;
49    private RemoteWorldClockAdapter mAdapter;
50    private boolean mReloadCitiesList = true;
51    private boolean mReloadCitiesDb = true;
52    private float mFontScale = 1;
53    private float mListScale = 1;
54    private PendingIntent mQuarterlyIntent;
55    private String mLastTimeZone;
56
57
58    // An adapter to provide the view for the list of cities in the world clock.
59    private class RemoteWorldClockAdapter extends WorldClockAdapter {
60        private final float mFontSize;
61
62        public RemoteWorldClockAdapter(Context context) {
63            super(context);
64            mFontSize = context.getResources().getDimension(R.dimen.widget_medium_font_size);
65        }
66
67        public RemoteViews getViewAt(int position) {
68            // There are 2 cities per item
69            int index = position * 2;
70            if (index < 0 || index >= mCitiesList.length) {
71                return null;
72            }
73
74            RemoteViews views = new RemoteViews(
75                    mContext.getPackageName(), R.layout.world_clock_remote_list_item);
76
77            // Always how the left clock
78            updateView(views, (CityObj) mCitiesList[index], R.id.leftClock1, R.id.leftClock2,
79                    R.id.city_name_left, R.id.city_day_left);
80            // Show the right clock if any, make it invisible if there is no
81            // clock on the right
82            // to keep the left view on the left.
83            if (index + 1 < mCitiesList.length) {
84                updateView(views, (CityObj) mCitiesList[index + 1], R.id.rightClock1,
85                        R.id.rightClock2, R.id.city_name_right, R.id.city_day_right);
86            } else {
87                hideView(views, R.id.rightClock1, R.id.rightClock2, R.id.city_name_right,
88                        R.id.city_day_right);
89            }
90            return views;
91        }
92
93        private void updateView(RemoteViews clock, CityObj cityObj, int clockId1, int clockId2,
94                int labelId, int dayId) {
95            final Calendar now = Calendar.getInstance();
96            now.setTimeInMillis(System.currentTimeMillis());
97            int myDayOfWeek = now.get(Calendar.DAY_OF_WEEK);
98            CityObj cityInDb = mCitiesDb.get(cityObj.mCityId);
99            String cityTZ = (cityInDb != null) ? cityInDb.mTimeZone : cityObj.mTimeZone;
100            now.setTimeZone(TimeZone.getTimeZone(cityTZ));
101            int cityDayOfWeek = now.get(Calendar.DAY_OF_WEEK);
102
103            float scale = Math.min(mFontScale, mListScale);
104            clock.setTextViewTextSize(clockId1, TypedValue.COMPLEX_UNIT_PX, mFontSize * scale);
105            clock.setTextViewTextSize(clockId2, TypedValue.COMPLEX_UNIT_PX, mFontSize * scale);
106            clock.setString(clockId1, "setTimeZone", cityObj.mTimeZone);
107            clock.setString(clockId2, "setTimeZone", cityObj.mTimeZone);
108
109            // Home city or city not in DB , use data from the save selected cities list
110            clock.setTextViewText(labelId, Utils.getCityName(cityObj, cityInDb));
111
112            if (myDayOfWeek != cityDayOfWeek) {
113                clock.setTextViewText(dayId, mContext.getString(
114                        R.string.world_day_of_week_label, now.getDisplayName(
115                                Calendar.DAY_OF_WEEK, Calendar.SHORT, Locale.getDefault())));
116                clock.setViewVisibility(dayId, View.VISIBLE);
117            } else {
118                clock.setViewVisibility(dayId, View.GONE);
119            }
120
121            clock.setViewVisibility(clockId1, View.VISIBLE);
122            clock.setViewVisibility(clockId2, View.VISIBLE);
123            clock.setViewVisibility(labelId, View.VISIBLE);
124        }
125
126        private void hideView(
127                RemoteViews clock, int clockId1, int clockId2, int labelId, int dayId) {
128            clock.setViewVisibility(clockId1, View.INVISIBLE);
129            clock.setViewVisibility(clockId2, View.INVISIBLE);
130            clock.setViewVisibility(labelId, View.INVISIBLE);
131            clock.setViewVisibility(dayId, View.INVISIBLE);
132        }
133    }
134
135    public DigitalWidgetViewsFactory(Context c, Intent intent) {
136        mContext = c;
137        mId = intent.getIntExtra(
138                AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
139        mAdapter = new RemoteWorldClockAdapter(c);
140        mLastTimeZone = TimeZone.getDefault().getID();
141    }
142
143    public DigitalWidgetViewsFactory() {
144    }
145
146    @Override
147    public int getCount() {
148        if (WidgetUtils.showList(mContext, mId, mFontScale)) {
149            return mAdapter.getCount();
150        }
151        return 0;
152    }
153
154    @Override
155    public long getItemId(int position) {
156        return position;
157    }
158
159    @Override
160    public RemoteViews getLoadingView() {
161        return null;
162    }
163
164    @Override
165    public RemoteViews getViewAt(int position) {
166        RemoteViews v = mAdapter.getViewAt(position);
167        if (v != null) {
168            Intent fillInIntent = new Intent();
169            v.setOnClickFillInIntent(R.id.widget_item, fillInIntent);
170        }
171        return v;
172    }
173
174    @Override
175    public int getViewTypeCount() {
176        return 1;
177    }
178
179    @Override
180    public boolean hasStableIds() {
181        return true;
182    }
183
184    @Override
185    public void onCreate() {
186        mQuarterlyIntent = Utils.startAlarmOnQuarterHour(mContext);
187        // Do intent listening registration here since doing it in the manifest creates a new
188        // new factory
189        IntentFilter filter = new IntentFilter();
190        filter.addAction(Intent.ACTION_DATE_CHANGED);
191        filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
192        filter.addAction(Intent.ACTION_SCREEN_ON);
193        filter.addAction(Utils.ACTION_ON_QUARTER_HOUR);
194        filter.addAction(Intent.ACTION_TIME_CHANGED);
195        filter.addAction(Intent.ACTION_LOCALE_CHANGED);
196        filter.addAction("com.android.deskclock.NEXT_ALARM_TIME_SET");
197        filter.addAction("com.android.deskclock.worldclock.update");
198        mContext.registerReceiver(this, filter);
199    }
200
201    @Override
202    public void onDataSetChanged() {
203        if (mReloadCitiesList) {
204            mAdapter.loadData(mContext);
205            mReloadCitiesList = false;
206        }
207        if (mReloadCitiesDb) {
208            mAdapter.loadCitiesDb(mContext);
209            mAdapter.updateHomeLabel(mContext);
210            mReloadCitiesDb = false;
211        }
212
213        mFontScale = WidgetUtils.getScaleRatio(mContext, null, mId);
214        mListScale = WidgetUtils.getHeightScaleRatio(mContext, null, mId);
215
216    }
217
218    @Override
219    public void onDestroy() {
220        Utils.cancelAlarmOnQuarterHour(mContext, mQuarterlyIntent);
221        mContext.unregisterReceiver(this);
222    }
223
224
225    @Override
226    public void onReceive(Context context, Intent intent) {
227        if (mId == AppWidgetManager.INVALID_APPWIDGET_ID) {
228            return;
229        }
230        mContext = context;
231        String action = intent.getAction();
232        AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
233        if (action.equals("com.android.deskclock.NEXT_ALARM_TIME_SET")) {
234            // Update the next alarm text view
235            RemoteViews widget =
236                    new RemoteViews(context.getPackageName(), R.layout.digital_appwidget);
237            refreshAlarm(context, widget);
238            widgetManager.partiallyUpdateAppWidget(mId, widget);
239        } else if (action.equals("com.android.deskclock.worldclock.update")) {
240            // Reload the list of cities
241            mReloadCitiesList = true;
242            widgetManager.notifyAppWidgetViewDataChanged(mId, R.id.digital_appwidget_listview);
243
244        } else if (action.equals(Intent.ACTION_SCREEN_ON)) {
245            RemoteViews widget =
246                    new RemoteViews(context.getPackageName(), R.layout.digital_appwidget);
247            refreshAlarm(context, widget);
248            widgetManager.partiallyUpdateAppWidget(mId, widget);
249        } else {
250            if (action.equals(Intent.ACTION_TIMEZONE_CHANGED)) {
251                // refresh the list to make sure home time zone is displayed / removed
252                mReloadCitiesList = true;
253                mLastTimeZone = TimeZone.getDefault().getID();
254            } else if (action.equals(Intent.ACTION_LOCALE_CHANGED)) {
255                // reload the cities DB to pick up the cities name in the new language
256                mReloadCitiesDb = true;
257            } else if (action.equals(Utils.ACTION_ON_QUARTER_HOUR)) {
258                // Since the system may miss or not send time zone changes in all cases
259                // make sure to update the world clock list if the time zone
260                // changed in the last 15 minutes
261                String currentTimeZone = TimeZone.getDefault().getID();
262                if (!TextUtils.equals(currentTimeZone, mLastTimeZone)) {
263                    // refresh the list to make sure home time zone is displayed / removed
264                    mReloadCitiesList = true;
265                    mLastTimeZone = currentTimeZone;
266                    Log.v(TAG,"Detected time zone change,updating time zone to " + currentTimeZone);
267                }
268            }
269
270            // For any time change or locale change, refresh all
271            widgetManager.notifyAppWidgetViewDataChanged(mId, R.id.digital_appwidget_listview);
272            RemoteViews widget =
273                    new RemoteViews(context.getPackageName(), R.layout.digital_appwidget);
274            float ratio = WidgetUtils.getScaleRatio(context, null, mId);
275            WidgetUtils.setClockSize(context, widget, ratio);
276            refreshAlarm(context, widget);
277            widgetManager.partiallyUpdateAppWidget(mId, widget);
278            mQuarterlyIntent = Utils.refreshAlarmOnQuarterHour(context, mQuarterlyIntent);
279        }
280    }
281
282    private void refreshAlarm(Context c, RemoteViews widget) {
283        String nextAlarm = Settings.System.getString(c.getContentResolver(),
284                Settings.System.NEXT_ALARM_FORMATTED);
285        if (!TextUtils.isEmpty(nextAlarm)) {
286            widget.setTextViewText(R.id.nextAlarm,
287                    c.getString(R.string.control_set_alarm_with_existing, nextAlarm));
288            widget.setViewVisibility(R.id.nextAlarm, View.VISIBLE);
289        } else  {
290            widget.setViewVisibility(R.id.nextAlarm, View.GONE);
291        }
292    }
293}
294
295