1 /* 2 * Copyright (C) 2010 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 package com.android.contacts.list; 17 18 import android.content.AsyncTaskLoader; 19 import android.content.Context; 20 import android.content.pm.PackageManager; 21 import android.database.ContentObserver; 22 import android.database.Cursor; 23 import android.database.MatrixCursor; 24 import android.net.Uri; 25 import android.os.Handler; 26 import android.provider.ContactsContract.Directory; 27 import android.text.TextUtils; 28 import android.util.Log; 29 30 import com.android.contacts.R; 31 import com.android.contacts.compat.DirectoryCompat; 32 33 /** 34 * A specialized loader for the list of directories, see {@link Directory}. 35 */ 36 public class DirectoryListLoader extends AsyncTaskLoader<Cursor> { 37 38 private static final String TAG = "ContactEntryListAdapter"; 39 40 public static final int SEARCH_MODE_NONE = 0; 41 public static final int SEARCH_MODE_DEFAULT = 1; 42 public static final int SEARCH_MODE_CONTACT_SHORTCUT = 2; 43 public static final int SEARCH_MODE_DATA_SHORTCUT = 3; 44 45 private static final class DirectoryQuery { 46 public static final String ORDER_BY = Directory._ID; 47 48 public static final String[] PROJECTION = { 49 Directory._ID, 50 Directory.PACKAGE_NAME, 51 Directory.TYPE_RESOURCE_ID, 52 Directory.DISPLAY_NAME, 53 Directory.PHOTO_SUPPORT, 54 }; 55 56 public static final int ID = 0; 57 public static final int PACKAGE_NAME = 1; 58 public static final int TYPE_RESOURCE_ID = 2; 59 public static final int DISPLAY_NAME = 3; 60 public static final int PHOTO_SUPPORT = 4; 61 getDirectoryUri(int mode)62 public static Uri getDirectoryUri(int mode) { 63 if (mode == SEARCH_MODE_DATA_SHORTCUT || mode == SEARCH_MODE_CONTACT_SHORTCUT) { 64 return Directory.CONTENT_URI; 65 } else { 66 return DirectoryCompat.getContentUri(); 67 } 68 } 69 } 70 71 // This is a virtual column created for a MatrixCursor. 72 public static final String DIRECTORY_TYPE = "directoryType"; 73 74 private static final String[] RESULT_PROJECTION = { 75 Directory._ID, 76 DIRECTORY_TYPE, 77 Directory.DISPLAY_NAME, 78 Directory.PHOTO_SUPPORT, 79 }; 80 81 private final ContentObserver mObserver = new ContentObserver(new Handler()) { 82 @Override 83 public void onChange(boolean selfChange) { 84 forceLoad(); 85 } 86 }; 87 88 private int mDirectorySearchMode; 89 private boolean mLocalInvisibleDirectoryEnabled; 90 91 private MatrixCursor mDefaultDirectoryList; 92 DirectoryListLoader(Context context)93 public DirectoryListLoader(Context context) { 94 super(context); 95 } 96 setDirectorySearchMode(int mode)97 public void setDirectorySearchMode(int mode) { 98 mDirectorySearchMode = mode; 99 } 100 101 /** 102 * A flag that indicates whether the {@link Directory#LOCAL_INVISIBLE} directory should 103 * be included in the results. 104 */ setLocalInvisibleDirectoryEnabled(boolean flag)105 public void setLocalInvisibleDirectoryEnabled(boolean flag) { 106 this.mLocalInvisibleDirectoryEnabled = flag; 107 } 108 109 @Override onStartLoading()110 protected void onStartLoading() { 111 getContext().getContentResolver(). 112 registerContentObserver(DirectoryQuery.getDirectoryUri(mDirectorySearchMode), 113 false, mObserver); 114 forceLoad(); 115 } 116 117 @Override onStopLoading()118 protected void onStopLoading() { 119 getContext().getContentResolver().unregisterContentObserver(mObserver); 120 } 121 122 @Override loadInBackground()123 public Cursor loadInBackground() { 124 if (mDirectorySearchMode == SEARCH_MODE_NONE) { 125 return getDefaultDirectories(); 126 } 127 128 MatrixCursor result = new MatrixCursor(RESULT_PROJECTION); 129 Context context = getContext(); 130 PackageManager pm = context.getPackageManager(); 131 String selection; 132 switch (mDirectorySearchMode) { 133 case SEARCH_MODE_DEFAULT: 134 selection = null; 135 break; 136 137 case SEARCH_MODE_CONTACT_SHORTCUT: 138 selection = Directory.SHORTCUT_SUPPORT + "=" + Directory.SHORTCUT_SUPPORT_FULL; 139 break; 140 141 case SEARCH_MODE_DATA_SHORTCUT: 142 selection = Directory.SHORTCUT_SUPPORT + " IN (" 143 + Directory.SHORTCUT_SUPPORT_FULL + ", " 144 + Directory.SHORTCUT_SUPPORT_DATA_ITEMS_ONLY + ")"; 145 break; 146 147 default: 148 throw new RuntimeException( 149 "Unsupported directory search mode: " + mDirectorySearchMode); 150 } 151 Cursor cursor = null; 152 try { 153 cursor = context.getContentResolver().query( 154 DirectoryQuery.getDirectoryUri(mDirectorySearchMode), 155 DirectoryQuery.PROJECTION, selection, null, DirectoryQuery.ORDER_BY); 156 157 if (cursor == null) { 158 return result; 159 } 160 161 while(cursor.moveToNext()) { 162 long directoryId = cursor.getLong(DirectoryQuery.ID); 163 if (!mLocalInvisibleDirectoryEnabled 164 && DirectoryCompat.isInvisibleDirectory(directoryId)) { 165 continue; 166 } 167 String directoryType = null; 168 169 String packageName = cursor.getString(DirectoryQuery.PACKAGE_NAME); 170 int typeResourceId = cursor.getInt(DirectoryQuery.TYPE_RESOURCE_ID); 171 if (!TextUtils.isEmpty(packageName) && typeResourceId != 0) { 172 try { 173 directoryType = pm.getResourcesForApplication(packageName) 174 .getString(typeResourceId); 175 } catch (Exception e) { 176 Log.e(TAG, "Cannot obtain directory type from package: " + packageName); 177 } 178 } 179 String displayName = cursor.getString(DirectoryQuery.DISPLAY_NAME); 180 int photoSupport = cursor.getInt(DirectoryQuery.PHOTO_SUPPORT); 181 result.addRow(new Object[]{directoryId, directoryType, displayName, photoSupport}); 182 } 183 } catch (RuntimeException e) { 184 Log.w(TAG, "Runtime Exception when querying directory"); 185 } finally { 186 if (cursor != null) { 187 cursor.close(); 188 } 189 } 190 191 return result; 192 } 193 getDefaultDirectories()194 private Cursor getDefaultDirectories() { 195 if (mDefaultDirectoryList == null) { 196 mDefaultDirectoryList = new MatrixCursor(RESULT_PROJECTION); 197 mDefaultDirectoryList.addRow(new Object[] { 198 Directory.DEFAULT, 199 getContext().getString(R.string.contactsList), 200 null, 201 null 202 }); 203 mDefaultDirectoryList.addRow(new Object[] { 204 Directory.LOCAL_INVISIBLE, 205 getContext().getString(R.string.local_invisible_directory), 206 null, 207 null 208 }); 209 } 210 return mDefaultDirectoryList; 211 } 212 213 @Override onReset()214 protected void onReset() { 215 stopLoading(); 216 } 217 } 218