SelectSyncedCalendarsMultiAccountActivity.java revision 48bcc4cb015dbf802341698a3a04e28d2cfb2ddc 
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
17package com.android.calendar.selectcalendars;
18
19import android.app.ActionBar;
20import android.app.ExpandableListActivity;
21import android.content.AsyncQueryHandler;
22import android.database.Cursor;
23import android.database.MatrixCursor;
24import android.os.Bundle;
25import android.provider.CalendarContract.Calendars;
26import android.view.Menu;
27import android.view.MenuItem;
28import android.view.View;
29import android.widget.ExpandableListView;
30
31import com.android.calendar.R;
32import com.android.calendar.Utils;
33
34public 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            mAdapter.doSaveAction();
68            finish();
69        } else if (view.getId() == R.id.btn_discard) {
70            finish();
71        }
72    }
73
74    @Override
75    protected void onResume() {
76        super.onResume();
77        if (mAdapter != null) {
78            mAdapter.startRefreshStopDelay();
79        }
80        new AsyncQueryHandler(getContentResolver()) {
81            @Override
82            protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
83                mAccountsCursor = Utils.matrixCursorFromCursor(cursor);
84
85                mAdapter = new SelectSyncedCalendarsMultiAccountAdapter(
86                        findViewById(R.id.calendars).getContext(), mAccountsCursor,
87                        SelectSyncedCalendarsMultiAccountActivity.this);
88                mList.setAdapter(mAdapter);
89
90                // TODO initialize from sharepref
91                int count = mList.getCount();
92                for(int i = 0; i < count; i++) {
93                    mList.expandGroup(i);
94                }
95            }
96        }.startQuery(0, null, Calendars.CONTENT_URI, PROJECTION,
97                "1) GROUP BY (" + ACCOUNT_UNIQUE_KEY, //Cheap hack to make WHERE a GROUP BY query
98                null /* selectionArgs */,
99                Calendars.ACCOUNT_NAME /*sort order*/);
100        //TODO change to something that supports group by queries.
101    }
102
103    @Override
104    protected void onPause() {
105        super.onPause();
106        mAdapter.cancelRefreshStopDelay();
107    }
108
109    @Override
110    protected void onStop() {
111        super.onStop();
112        mAdapter.closeChildrenCursors();
113        if (!mAccountsCursor.isClosed()) {
114            mAccountsCursor.close();
115        }
116    }
117
118    @Override
119    protected void onSaveInstanceState(Bundle outState) {
120        super.onSaveInstanceState(outState);
121        boolean[] isExpanded;
122        mList = getExpandableListView();
123        if(mList != null) {
124            int count = mList.getCount();
125            isExpanded = new boolean[count];
126            for(int i = 0; i < count; i++) {
127                isExpanded[i] = mList.isGroupExpanded(i);
128            }
129        } else {
130            isExpanded = null;
131        }
132        outState.putBooleanArray(EXPANDED_KEY, isExpanded);
133        //TODO Store this to preferences instead so it remains on restart
134    }
135
136    @Override
137    protected void onRestoreInstanceState(Bundle state) {
138        super.onRestoreInstanceState(state);
139        mList = getExpandableListView();
140        boolean[] isExpanded = state.getBooleanArray(EXPANDED_KEY);
141        if(mList != null && isExpanded != null && mList.getCount() >= isExpanded.length) {
142            for(int i = 0; i < isExpanded.length; i++) {
143                if(isExpanded[i] && !mList.isGroupExpanded(i)) {
144                    mList.expandGroup(i);
145                } else if(!isExpanded[i] && mList.isGroupExpanded(i)){
146                    mList.collapseGroup(i);
147                }
148            }
149        }
150    }
151
152    @Override
153    public boolean onCreateOptionsMenu(Menu menu) {
154        getActionBar()
155                .setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP, ActionBar.DISPLAY_HOME_AS_UP);
156        return true;
157    }
158
159    @Override
160    public boolean onOptionsItemSelected(MenuItem item) {
161        switch (item.getItemId()) {
162            case android.R.id.home:
163                Utils.returnToCalendarHome(this);
164                return true;
165        }
166        return super.onOptionsItemSelected(item);
167    }
168}
169