Home | History | Annotate | Download | only in selectcalendars 
      1 /*
      2  * Copyright (C) 2011 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 
     17 package com.android.calendar.selectcalendars;
     18 
     19 import android.app.ActionBar;
     20 import android.app.ExpandableListActivity;
     21 import android.content.AsyncQueryHandler;
     22 import android.database.Cursor;
     23 import android.database.MatrixCursor;
     24 import android.os.Bundle;
     25 import android.provider.CalendarContract.Calendars;
     26 import android.view.Menu;
     27 import android.view.MenuItem;
     28 import android.view.View;
     29 import android.widget.ExpandableListView;
     30 
     31 import com.android.calendar.R;
     32 import com.android.calendar.Utils;
     33 
     34 public class SelectSyncedCalendarsMultiAccountActivity extends ExpandableListActivity
     35     implements View.OnClickListener {
     36 
     37     private static final String TAG = "Calendar";
     38     private static final String EXPANDED_KEY = "is_expanded";
     39     private static final String ACCOUNT_UNIQUE_KEY = "ACCOUNT_KEY";
     40     private MatrixCursor mAccountsCursor = null;
     41     private ExpandableListView mList;
     42     private SelectSyncedCalendarsMultiAccountAdapter mAdapter;
     43     private static final String[] PROJECTION = new String[] {
     44         Calendars._ID,
     45         Calendars.ACCOUNT_TYPE,
     46         Calendars.ACCOUNT_NAME,
     47         Calendars.ACCOUNT_TYPE + " || " + Calendars.ACCOUNT_NAME + " AS " +
     48                 ACCOUNT_UNIQUE_KEY,
     49     };
     50 
     51     @Override
     52     protected void onCreate(Bundle icicle) {
     53         super.onCreate(icicle);
     54         setContentView(R.layout.select_calendars_multi_accounts_fragment);
     55         mList = getExpandableListView();
     56         mList.setEmptyView(findViewById(R.id.loading));
     57         // Start a background sync to get the list of calendars from the server.
     58         Utils.startCalendarMetafeedSync(null);
     59 
     60         findViewById(R.id.btn_done).setOnClickListener(this);
     61         findViewById(R.id.btn_discard).setOnClickListener(this);
     62     }
     63 
     64     @Override
     65     public void onClick(View view) {
     66         if (view.getId() == R.id.btn_done) {
     67             if (mAdapter != null) {
     68                 mAdapter.doSaveAction();
     69             }
     70             finish();
     71         } else if (view.getId() == R.id.btn_discard) {
     72             finish();
     73         }
     74     }
     75 
     76     @Override
     77     protected void onResume() {
     78         super.onResume();
     79         if (mAdapter != null) {
     80             mAdapter.startRefreshStopDelay();
     81         }
     82         new AsyncQueryHandler(getContentResolver()) {
     83             @Override
     84             protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
     85                 mAccountsCursor = Utils.matrixCursorFromCursor(cursor);
     86 
     87                 mAdapter = new SelectSyncedCalendarsMultiAccountAdapter(
     88                         findViewById(R.id.calendars).getContext(), mAccountsCursor,
     89                         SelectSyncedCalendarsMultiAccountActivity.this);
     90                 mList.setAdapter(mAdapter);
     91 
     92                 // TODO initialize from sharepref
     93                 int count = mList.getCount();
     94                 for(int i = 0; i < count; i++) {
     95                     mList.expandGroup(i);
     96                 }
     97             }
     98         }.startQuery(0, null, Calendars.CONTENT_URI, PROJECTION,
     99                 "1) GROUP BY (" + ACCOUNT_UNIQUE_KEY, //Cheap hack to make WHERE a GROUP BY query
    100                 null /* selectionArgs */,
    101                 Calendars.ACCOUNT_NAME /*sort order*/);
    102         //TODO change to something that supports group by queries.
    103     }
    104 
    105     @Override
    106     protected void onPause() {
    107         super.onPause();
    108         if (mAdapter != null) {
    109             mAdapter.cancelRefreshStopDelay();
    110         }
    111     }
    112 
    113     @Override
    114     protected void onStop() {
    115         super.onStop();
    116         if (mAdapter != null) {
    117             mAdapter.closeChildrenCursors();
    118         }
    119         if (mAccountsCursor != null && !mAccountsCursor.isClosed()) {
    120             mAccountsCursor.close();
    121         }
    122     }
    123 
    124     @Override
    125     protected void onSaveInstanceState(Bundle outState) {
    126         super.onSaveInstanceState(outState);
    127         boolean[] isExpanded;
    128         mList = getExpandableListView();
    129         if(mList != null) {
    130             int count = mList.getCount();
    131             isExpanded = new boolean[count];
    132             for(int i = 0; i < count; i++) {
    133                 isExpanded[i] = mList.isGroupExpanded(i);
    134             }
    135         } else {
    136             isExpanded = null;
    137         }
    138         outState.putBooleanArray(EXPANDED_KEY, isExpanded);
    139         //TODO Store this to preferences instead so it remains on restart
    140     }
    141 
    142     @Override
    143     protected void onRestoreInstanceState(Bundle state) {
    144         super.onRestoreInstanceState(state);
    145         mList = getExpandableListView();
    146         boolean[] isExpanded = state.getBooleanArray(EXPANDED_KEY);
    147         if(mList != null && isExpanded != null && mList.getCount() >= isExpanded.length) {
    148             for(int i = 0; i < isExpanded.length; i++) {
    149                 if(isExpanded[i] && !mList.isGroupExpanded(i)) {
    150                     mList.expandGroup(i);
    151                 } else if(!isExpanded[i] && mList.isGroupExpanded(i)){
    152                     mList.collapseGroup(i);
    153                 }
    154             }
    155         }
    156     }
    157 
    158     @Override
    159     public boolean onCreateOptionsMenu(Menu menu) {
    160         getActionBar()
    161                 .setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP, ActionBar.DISPLAY_HOME_AS_UP);
    162         return true;
    163     }
    164 
    165     @Override
    166     public boolean onOptionsItemSelected(MenuItem item) {
    167         switch (item.getItemId()) {
    168             case android.R.id.home:
    169                 Utils.returnToCalendarHome(this);
    170                 return true;
    171         }
    172         return super.onOptionsItemSelected(item);
    173     }
    174 }
    175