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 */
16package com.android.contacts;
17
18import android.content.Context;
19import android.content.CursorLoader;
20import android.net.Uri;
21import android.provider.ContactsContract;
22import android.provider.ContactsContract.CommonDataKinds.GroupMembership;
23import android.provider.ContactsContract.Contacts;
24import android.provider.ContactsContract.Data;
25import android.provider.ContactsContract.Directory;
26
27import com.android.contacts.common.preference.ContactsPreferences;
28
29import java.util.ArrayList;
30import java.util.List;
31
32/**
33 * Group Member loader. Loads all group members from the given groupId
34 */
35public final class GroupMemberLoader extends CursorLoader {
36
37    public static class GroupEditorQuery {
38        private static final String[] PROJECTION = new String[] {
39            Data.CONTACT_ID,                        // 0
40            Data.RAW_CONTACT_ID,                    // 1
41            Data.DISPLAY_NAME_PRIMARY,              // 2
42            Data.PHOTO_URI,                         // 3
43            Data.LOOKUP_KEY,                        // 4
44        };
45
46        public static final int CONTACT_ID                   = 0;
47        public static final int RAW_CONTACT_ID               = 1;
48        public static final int CONTACT_DISPLAY_NAME_PRIMARY = 2;
49        public static final int CONTACT_PHOTO_URI            = 3;
50        public static final int CONTACT_LOOKUP_KEY           = 4;
51    }
52
53    public static class GroupDetailQuery {
54        private static final String[] PROJECTION = new String[] {
55            Data.CONTACT_ID,                        // 0
56            Data.PHOTO_URI,                         // 1
57            Data.LOOKUP_KEY,                        // 2
58            Data.DISPLAY_NAME_PRIMARY,              // 3
59            Data.CONTACT_PRESENCE,                  // 4
60            Data.CONTACT_STATUS,                    // 5
61        };
62
63        public static final int CONTACT_ID                   = 0;
64        public static final int CONTACT_PHOTO_URI            = 1;
65        public static final int CONTACT_LOOKUP_KEY           = 2;
66        public static final int CONTACT_DISPLAY_NAME_PRIMARY = 3;
67        public static final int CONTACT_PRESENCE_STATUS      = 4;
68        public static final int CONTACT_STATUS               = 5;
69    }
70
71    private final long mGroupId;
72
73    /**
74     * @return GroupMemberLoader object which can be used in group editor.
75     */
76    public static GroupMemberLoader constructLoaderForGroupEditorQuery(
77            Context context, long groupId) {
78        return new GroupMemberLoader(context, groupId, GroupEditorQuery.PROJECTION);
79    }
80
81    /**
82     * @return GroupMemberLoader object used in group detail page.
83     */
84    public static GroupMemberLoader constructLoaderForGroupDetailQuery(
85            Context context, long groupId) {
86        return new GroupMemberLoader(context, groupId, GroupDetailQuery.PROJECTION);
87    }
88
89    private GroupMemberLoader(Context context, long groupId, String[] projection) {
90        super(context);
91        mGroupId = groupId;
92        setUri(createUri());
93        setProjection(projection);
94        setSelection(createSelection());
95        setSelectionArgs(createSelectionArgs());
96
97        ContactsPreferences prefs = new ContactsPreferences(context);
98        if (prefs.getSortOrder() == ContactsPreferences.SORT_ORDER_PRIMARY) {
99            setSortOrder(Contacts.SORT_KEY_PRIMARY);
100        } else {
101            setSortOrder(Contacts.SORT_KEY_ALTERNATIVE);
102        }
103    }
104
105    private Uri createUri() {
106        Uri uri = Data.CONTENT_URI;
107        uri = uri.buildUpon().appendQueryParameter(ContactsContract.DIRECTORY_PARAM_KEY,
108                String.valueOf(Directory.DEFAULT)).build();
109        return uri;
110    }
111
112    private String createSelection() {
113        StringBuilder selection = new StringBuilder();
114        selection.append(Data.MIMETYPE + "=?" + " AND " + GroupMembership.GROUP_ROW_ID + "=?");
115        return selection.toString();
116    }
117
118    private String[] createSelectionArgs() {
119        List<String> selectionArgs = new ArrayList<String>();
120        selectionArgs.add(GroupMembership.CONTENT_ITEM_TYPE);
121        selectionArgs.add(String.valueOf(mGroupId));
122        return selectionArgs.toArray(new String[0]);
123    }
124}
125