diff options
Diffstat (limited to 'src/com/android/calendar/widget/CalendarAppWidgetService.java')
| -rw-r--r-- | src/com/android/calendar/widget/CalendarAppWidgetService.java | 626 |
1 files changed, 0 insertions, 626 deletions
diff --git a/src/com/android/calendar/widget/CalendarAppWidgetService.java b/src/com/android/calendar/widget/CalendarAppWidgetService.java deleted file mode 100644 index ec702c7c..00000000 --- a/src/com/android/calendar/widget/CalendarAppWidgetService.java +++ /dev/null @@ -1,626 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * 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 com.android.calendar.widget; - -import android.app.AlarmManager; -import android.app.PendingIntent; -import android.appwidget.AppWidgetManager; -import android.content.BroadcastReceiver; -import android.content.Context; -import android.content.CursorLoader; -import android.content.Intent; -import android.content.Loader; -import android.content.res.Resources; -import android.database.Cursor; -import android.database.MatrixCursor; -import android.net.Uri; -import android.os.Handler; -import android.provider.CalendarContract.Attendees; -import android.provider.CalendarContract.Calendars; -import android.provider.CalendarContract.Instances; -import android.text.format.DateUtils; -import android.text.format.Time; -import android.util.Log; -import android.view.View; -import android.widget.RemoteViews; -import android.widget.RemoteViewsService; - -import com.android.calendar.R; -import com.android.calendar.Utils; -import com.android.calendar.widget.CalendarAppWidgetModel.DayInfo; -import com.android.calendar.widget.CalendarAppWidgetModel.EventInfo; -import com.android.calendar.widget.CalendarAppWidgetModel.RowInfo; - -import java.util.concurrent.ExecutorService; -import java.util.concurrent.Executors; -import java.util.concurrent.atomic.AtomicInteger; - - -public class CalendarAppWidgetService extends RemoteViewsService { - private static final String TAG = "CalendarWidget"; - - static final int EVENT_MIN_COUNT = 20; - static final int EVENT_MAX_COUNT = 100; - // Minimum delay between queries on the database for widget updates in ms - static final int WIDGET_UPDATE_THROTTLE = 500; - - private static final String EVENT_SORT_ORDER = Instances.START_DAY + " ASC, " - + Instances.START_MINUTE + " ASC, " + Instances.END_DAY + " ASC, " - + Instances.END_MINUTE + " ASC LIMIT " + EVENT_MAX_COUNT; - - private static final String EVENT_SELECTION = Calendars.VISIBLE + "=1"; - private static final String EVENT_SELECTION_HIDE_DECLINED = Calendars.VISIBLE + "=1 AND " - + Instances.SELF_ATTENDEE_STATUS + "!=" + Attendees.ATTENDEE_STATUS_DECLINED; - - static final String[] EVENT_PROJECTION = new String[] { - Instances.ALL_DAY, - Instances.BEGIN, - Instances.END, - Instances.TITLE, - Instances.EVENT_LOCATION, - Instances.EVENT_ID, - Instances.START_DAY, - Instances.END_DAY, - Instances.DISPLAY_COLOR, // If SDK < 16, set to Instances.CALENDAR_COLOR. - Instances.SELF_ATTENDEE_STATUS, - }; - - static final int INDEX_ALL_DAY = 0; - static final int INDEX_BEGIN = 1; - static final int INDEX_END = 2; - static final int INDEX_TITLE = 3; - static final int INDEX_EVENT_LOCATION = 4; - static final int INDEX_EVENT_ID = 5; - static final int INDEX_START_DAY = 6; - static final int INDEX_END_DAY = 7; - static final int INDEX_COLOR = 8; - static final int INDEX_SELF_ATTENDEE_STATUS = 9; - - static { - if (!Utils.isJellybeanOrLater()) { - EVENT_PROJECTION[INDEX_COLOR] = Instances.CALENDAR_COLOR; - } - } - static final int MAX_DAYS = 7; - - private static final long SEARCH_DURATION = MAX_DAYS * DateUtils.DAY_IN_MILLIS; - - /** - * Update interval used when no next-update calculated, or bad trigger time in past. - * Unit: milliseconds. - */ - private static final long UPDATE_TIME_NO_EVENTS = DateUtils.HOUR_IN_MILLIS * 6; - - @Override - public RemoteViewsFactory onGetViewFactory(Intent intent) { - return new CalendarFactory(getApplicationContext(), intent); - } - - public static class CalendarFactory extends BroadcastReceiver implements - RemoteViewsService.RemoteViewsFactory, Loader.OnLoadCompleteListener<Cursor> { - private static final boolean LOGD = false; - - // Suppress unnecessary logging about update time. Need to be static as this object is - // re-instanciated frequently. - // TODO: It seems loadData() is called via onCreate() four times, which should mean - // unnecessary CalendarFactory object is created and dropped. It is not efficient. - private static long sLastUpdateTime = UPDATE_TIME_NO_EVENTS; - - private Context mContext; - private Resources mResources; - private static CalendarAppWidgetModel mModel; - private static Object mLock = new Object(); - private static volatile int mSerialNum = 0; - private int mLastSerialNum = -1; - private CursorLoader mLoader; - private final Handler mHandler = new Handler(); - private static final AtomicInteger currentVersion = new AtomicInteger(0); - private final ExecutorService executor = Executors.newSingleThreadExecutor(); - private int mAppWidgetId; - private int mDeclinedColor; - private int mStandardColor; - private int mAllDayColor; - - private final Runnable mTimezoneChanged = new Runnable() { - @Override - public void run() { - if (mLoader != null) { - mLoader.forceLoad(); - } - } - }; - - private Runnable createUpdateLoaderRunnable(final String selection, - final PendingResult result, final int version) { - return new Runnable() { - @Override - public void run() { - // If there is a newer load request in the queue, skip loading. - if (mLoader != null && version >= currentVersion.get()) { - Uri uri = createLoaderUri(); - mLoader.setUri(uri); - mLoader.setSelection(selection); - synchronized (mLock) { - mLastSerialNum = ++mSerialNum; - } - mLoader.forceLoad(); - } - result.finish(); - } - }; - } - - protected CalendarFactory(Context context, Intent intent) { - mContext = context; - mResources = context.getResources(); - mAppWidgetId = intent.getIntExtra( - AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); - - mDeclinedColor = mResources.getColor(R.color.appwidget_item_declined_color); - mStandardColor = mResources.getColor(R.color.appwidget_item_standard_color); - mAllDayColor = mResources.getColor(R.color.appwidget_item_allday_color); - } - - public CalendarFactory() { - // This is being created as part of onReceive - - } - - @Override - public void onCreate() { - String selection = queryForSelection(); - initLoader(selection); - } - - @Override - public void onDataSetChanged() { - } - - @Override - public void onDestroy() { - if (mLoader != null) { - mLoader.reset(); - } - } - - @Override - public RemoteViews getLoadingView() { - RemoteViews views = new RemoteViews(mContext.getPackageName(), - R.layout.appwidget_loading); - return views; - } - - @Override - public RemoteViews getViewAt(int position) { - // we use getCount here so that it doesn't return null when empty - if (position < 0 || position >= getCount()) { - return null; - } - - if (mModel == null) { - RemoteViews views = new RemoteViews(mContext.getPackageName(), - R.layout.appwidget_loading); - final Intent intent = CalendarAppWidgetProvider.getLaunchFillInIntent(mContext, 0, - 0, 0, false); - views.setOnClickFillInIntent(R.id.appwidget_loading, intent); - return views; - - } - if (mModel.mEventInfos.isEmpty() || mModel.mRowInfos.isEmpty()) { - RemoteViews views = new RemoteViews(mContext.getPackageName(), - R.layout.appwidget_no_events); - final Intent intent = CalendarAppWidgetProvider.getLaunchFillInIntent(mContext, 0, - 0, 0, false); - views.setOnClickFillInIntent(R.id.appwidget_no_events, intent); - return views; - } - - RowInfo rowInfo = mModel.mRowInfos.get(position); - if (rowInfo.mType == RowInfo.TYPE_DAY) { - RemoteViews views = new RemoteViews(mContext.getPackageName(), - R.layout.appwidget_day); - DayInfo dayInfo = mModel.mDayInfos.get(rowInfo.mIndex); - updateTextView(views, R.id.date, View.VISIBLE, dayInfo.mDayLabel); - return views; - } else { - RemoteViews views; - final EventInfo eventInfo = mModel.mEventInfos.get(rowInfo.mIndex); - if (eventInfo.allDay) { - views = new RemoteViews(mContext.getPackageName(), - R.layout.widget_all_day_item); - } else { - views = new RemoteViews(mContext.getPackageName(), R.layout.widget_item); - } - int displayColor = Utils.getDisplayColorFromColor(eventInfo.color); - - final long now = System.currentTimeMillis(); - if (!eventInfo.allDay && eventInfo.start <= now && now <= eventInfo.end) { - views.setInt(R.id.widget_row, "setBackgroundResource", - R.drawable.agenda_item_bg_secondary); - } else { - views.setInt(R.id.widget_row, "setBackgroundResource", - R.drawable.agenda_item_bg_primary); - } - - if (!eventInfo.allDay) { - updateTextView(views, R.id.when, eventInfo.visibWhen, eventInfo.when); - updateTextView(views, R.id.where, eventInfo.visibWhere, eventInfo.where); - } - updateTextView(views, R.id.title, eventInfo.visibTitle, eventInfo.title); - - views.setViewVisibility(R.id.agenda_item_color, View.VISIBLE); - - int selfAttendeeStatus = eventInfo.selfAttendeeStatus; - if (eventInfo.allDay) { - if (selfAttendeeStatus == Attendees.ATTENDEE_STATUS_INVITED) { - views.setInt(R.id.agenda_item_color, "setImageResource", - R.drawable.widget_chip_not_responded_bg); - views.setInt(R.id.title, "setTextColor", displayColor); - } else { - views.setInt(R.id.agenda_item_color, "setImageResource", - R.drawable.widget_chip_responded_bg); - views.setInt(R.id.title, "setTextColor", mAllDayColor); - } - if (selfAttendeeStatus == Attendees.ATTENDEE_STATUS_DECLINED) { - // 40% opacity - views.setInt(R.id.agenda_item_color, "setColorFilter", - Utils.getDeclinedColorFromColor(displayColor)); - } else { - views.setInt(R.id.agenda_item_color, "setColorFilter", displayColor); - } - } else if (selfAttendeeStatus == Attendees.ATTENDEE_STATUS_DECLINED) { - views.setInt(R.id.title, "setTextColor", mDeclinedColor); - views.setInt(R.id.when, "setTextColor", mDeclinedColor); - views.setInt(R.id.where, "setTextColor", mDeclinedColor); - views.setInt(R.id.agenda_item_color, "setImageResource", - R.drawable.widget_chip_responded_bg); - // 40% opacity - views.setInt(R.id.agenda_item_color, "setColorFilter", - Utils.getDeclinedColorFromColor(displayColor)); - } else { - views.setInt(R.id.title, "setTextColor", mStandardColor); - views.setInt(R.id.when, "setTextColor", mStandardColor); - views.setInt(R.id.where, "setTextColor", mStandardColor); - if (selfAttendeeStatus == Attendees.ATTENDEE_STATUS_INVITED) { - views.setInt(R.id.agenda_item_color, "setImageResource", - R.drawable.widget_chip_not_responded_bg); - } else { - views.setInt(R.id.agenda_item_color, "setImageResource", - R.drawable.widget_chip_responded_bg); - } - views.setInt(R.id.agenda_item_color, "setColorFilter", displayColor); - } - - long start = eventInfo.start; - long end = eventInfo.end; - // An element in ListView. - if (eventInfo.allDay) { - String tz = Utils.getTimeZone(mContext, null); - Time recycle = new Time(); - start = Utils.convertAlldayLocalToUTC(recycle, start, tz); - end = Utils.convertAlldayLocalToUTC(recycle, end, tz); - } - final Intent fillInIntent = CalendarAppWidgetProvider.getLaunchFillInIntent( - mContext, eventInfo.id, start, end, eventInfo.allDay); - views.setOnClickFillInIntent(R.id.widget_row, fillInIntent); - return views; - } - } - - @Override - public int getViewTypeCount() { - return 5; - } - - @Override - public int getCount() { - // if there are no events, we still return 1 to represent the "no - // events" view - if (mModel == null) { - return 1; - } - return Math.max(1, mModel.mRowInfos.size()); - } - - @Override - public long getItemId(int position) { - if (mModel == null || mModel.mRowInfos.isEmpty() || position >= getCount()) { - return 0; - } - RowInfo rowInfo = mModel.mRowInfos.get(position); - if (rowInfo.mType == RowInfo.TYPE_DAY) { - return rowInfo.mIndex; - } - EventInfo eventInfo = mModel.mEventInfos.get(rowInfo.mIndex); - long prime = 31; - long result = 1; - result = prime * result + (int) (eventInfo.id ^ (eventInfo.id >>> 32)); - result = prime * result + (int) (eventInfo.start ^ (eventInfo.start >>> 32)); - return result; - } - - @Override - public boolean hasStableIds() { - return true; - } - - /** - * Query across all calendars for upcoming event instances from now - * until some time in the future. Widen the time range that we query by - * one day on each end so that we can catch all-day events. All-day - * events are stored starting at midnight in UTC but should be included - * in the list of events starting at midnight local time. This may fetch - * more events than we actually want, so we filter them out later. - * - * @param selection The selection string for the loader to filter the query with. - */ - public void initLoader(String selection) { - if (LOGD) - Log.d(TAG, "Querying for widget events..."); - - // Search for events from now until some time in the future - Uri uri = createLoaderUri(); - mLoader = new CursorLoader(mContext, uri, EVENT_PROJECTION, selection, null, - EVENT_SORT_ORDER); - mLoader.setUpdateThrottle(WIDGET_UPDATE_THROTTLE); - synchronized (mLock) { - mLastSerialNum = ++mSerialNum; - } - mLoader.registerListener(mAppWidgetId, this); - mLoader.startLoading(); - - } - - /** - * This gets the selection string for the loader. This ends up doing a query in the - * shared preferences. - */ - private String queryForSelection() { - return Utils.getHideDeclinedEvents(mContext) ? EVENT_SELECTION_HIDE_DECLINED - : EVENT_SELECTION; - } - - /** - * @return The uri for the loader - */ - private Uri createLoaderUri() { - long now = System.currentTimeMillis(); - // Add a day on either side to catch all-day events - long begin = now - DateUtils.DAY_IN_MILLIS; - long end = now + SEARCH_DURATION + DateUtils.DAY_IN_MILLIS; - - Uri uri = Uri.withAppendedPath(Instances.CONTENT_URI, Long.toString(begin) + "/" + end); - return uri; - } - - /* @VisibleForTesting */ - protected static CalendarAppWidgetModel buildAppWidgetModel( - Context context, Cursor cursor, String timeZone) { - CalendarAppWidgetModel model = new CalendarAppWidgetModel(context, timeZone); - model.buildFromCursor(cursor, timeZone); - return model; - } - - /** - * Calculates and returns the next time we should push widget updates. - */ - private long calculateUpdateTime(CalendarAppWidgetModel model, long now, String timeZone) { - // Make sure an update happens at midnight or earlier - long minUpdateTime = getNextMidnightTimeMillis(timeZone); - for (EventInfo event : model.mEventInfos) { - final long start; - final long end; - start = event.start; - end = event.end; - - // We want to update widget when we enter/exit time range of an event. - if (now < start) { - minUpdateTime = Math.min(minUpdateTime, start); - } else if (now < end) { - minUpdateTime = Math.min(minUpdateTime, end); - } - } - return minUpdateTime; - } - - private static long getNextMidnightTimeMillis(String timezone) { - Time time = new Time(); - time.setToNow(); - time.monthDay++; - time.hour = 0; - time.minute = 0; - time.second = 0; - long midnightDeviceTz = time.normalize(true); - - time.timezone = timezone; - time.setToNow(); - time.monthDay++; - time.hour = 0; - time.minute = 0; - time.second = 0; - long midnightHomeTz = time.normalize(true); - - return Math.min(midnightDeviceTz, midnightHomeTz); - } - - static void updateTextView(RemoteViews views, int id, int visibility, String string) { - views.setViewVisibility(id, visibility); - if (visibility == View.VISIBLE) { - views.setTextViewText(id, string); - } - } - - /* - * (non-Javadoc) - * @see - * android.content.Loader.OnLoadCompleteListener#onLoadComplete(android - * .content.Loader, java.lang.Object) - */ - @Override - public void onLoadComplete(Loader<Cursor> loader, Cursor cursor) { - if (cursor == null) { - return; - } - // If a newer update has happened since we started clean up and - // return - synchronized (mLock) { - if (cursor.isClosed()) { - Log.wtf(TAG, "Got a closed cursor from onLoadComplete"); - return; - } - - if (mLastSerialNum != mSerialNum) { - return; - } - - final long now = System.currentTimeMillis(); - String tz = Utils.getTimeZone(mContext, mTimezoneChanged); - - // Copy it to a local static cursor. - MatrixCursor matrixCursor = Utils.matrixCursorFromCursor(cursor); - try { - mModel = buildAppWidgetModel(mContext, matrixCursor, tz); - } finally { - if (matrixCursor != null) { - matrixCursor.close(); - } - - if (cursor != null) { - cursor.close(); - } - } - - // Schedule an alarm to wake ourselves up for the next update. - // We also cancel - // all existing wake-ups because PendingIntents don't match - // against extras. - long triggerTime = calculateUpdateTime(mModel, now, tz); - - // If no next-update calculated, or bad trigger time in past, - // schedule - // update about six hours from now. - if (triggerTime < now) { - Log.w(TAG, "Encountered bad trigger time " + formatDebugTime(triggerTime, now)); - triggerTime = now + UPDATE_TIME_NO_EVENTS; - } - - final AlarmManager alertManager = (AlarmManager) mContext - .getSystemService(Context.ALARM_SERVICE); - final PendingIntent pendingUpdate = CalendarAppWidgetProvider - .getUpdateIntent(mContext); - - alertManager.cancel(pendingUpdate); - alertManager.set(AlarmManager.RTC, triggerTime, pendingUpdate); - Time time = new Time(Utils.getTimeZone(mContext, null)); - time.setToNow(); - - if (time.normalize(true) != sLastUpdateTime) { - Time time2 = new Time(Utils.getTimeZone(mContext, null)); - time2.set(sLastUpdateTime); - time2.normalize(true); - if (time.year != time2.year || time.yearDay != time2.yearDay) { - final Intent updateIntent = new Intent( - Utils.getWidgetUpdateAction(mContext)); - mContext.sendBroadcast(updateIntent); - } - - sLastUpdateTime = time.toMillis(true); - } - - AppWidgetManager widgetManager = AppWidgetManager.getInstance(mContext); - if (widgetManager == null) { - return; - } - if (mAppWidgetId == -1) { - int[] ids = widgetManager.getAppWidgetIds(CalendarAppWidgetProvider - .getComponentName(mContext)); - - widgetManager.notifyAppWidgetViewDataChanged(ids, R.id.events_list); - } else { - widgetManager.notifyAppWidgetViewDataChanged(mAppWidgetId, R.id.events_list); - } - } - } - - @Override - public void onReceive(Context context, Intent intent) { - if (LOGD) - Log.d(TAG, "AppWidgetService received an intent. It was " + intent.toString()); - mContext = context; - - // We cannot do any queries from the UI thread, so push the 'selection' query - // to a background thread. However the implementation of the latter query - // (cursor loading) uses CursorLoader which must be initiated from the UI thread, - // so there is some convoluted handshaking here. - // - // Note that as currently implemented, this must run in a single threaded executor - // or else the loads may be run out of order. - // - // TODO: Remove use of mHandler and CursorLoader, and do all the work synchronously - // in the background thread. All the handshaking going on here between the UI and - // background thread with using goAsync, mHandler, and CursorLoader is confusing. - final PendingResult result = goAsync(); - executor.submit(new Runnable() { - @Override - public void run() { - // We always complete queryForSelection() even if the load task ends up being - // canceled because of a more recent one. Optimizing this to allow - // canceling would require keeping track of all the PendingResults - // (from goAsync) to abort them. Defer this until it becomes a problem. - final String selection = queryForSelection(); - - if (mLoader == null) { - mAppWidgetId = -1; - mHandler.post(new Runnable() { - @Override - public void run() { - initLoader(selection); - result.finish(); - } - }); - } else { - mHandler.post(createUpdateLoaderRunnable(selection, result, - currentVersion.incrementAndGet())); - } - } - }); - } - } - - /** - * Format given time for debugging output. - * - * @param unixTime Target time to report. - * @param now Current system time from {@link System#currentTimeMillis()} - * for calculating time difference. - */ - static String formatDebugTime(long unixTime, long now) { - Time time = new Time(); - time.set(unixTime); - - long delta = unixTime - now; - if (delta > DateUtils.MINUTE_IN_MILLIS) { - delta /= DateUtils.MINUTE_IN_MILLIS; - return String.format("[%d] %s (%+d mins)", unixTime, - time.format("%H:%M:%S"), delta); - } else { - delta /= DateUtils.SECOND_IN_MILLIS; - return String.format("[%d] %s (%+d secs)", unixTime, - time.format("%H:%M:%S"), delta); - } - } -} |