Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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.documentsui; |
| 18 | |
Steve McKay | 7776aa5 | 2016-01-25 19:00:22 -0800 | [diff] [blame] | 19 | import static com.android.documentsui.Shared.DEBUG; |
Steve McKay | fefcd70 | 2015-08-20 16:19:38 +0000 | [diff] [blame] | 20 | import static com.android.documentsui.Shared.TAG; |
Steve McKay | f8a5e08 | 2015-09-23 17:21:40 -0700 | [diff] [blame] | 21 | import static com.android.documentsui.State.SORT_ORDER_DISPLAY_NAME; |
| 22 | import static com.android.documentsui.State.SORT_ORDER_LAST_MODIFIED; |
| 23 | import static com.android.documentsui.State.SORT_ORDER_SIZE; |
Jeff Sharkey | b362044 | 2013-09-01 18:41:04 -0700 | [diff] [blame] | 24 | |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 25 | import android.content.AsyncTaskLoader; |
| 26 | import android.content.ContentProviderClient; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 27 | import android.content.ContentResolver; |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 28 | import android.content.Context; |
| 29 | import android.database.Cursor; |
| 30 | import android.net.Uri; |
| 31 | import android.os.CancellationSignal; |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 32 | import android.os.OperationCanceledException; |
Makoto Onuki | 7777875 | 2015-07-01 14:55:14 -0700 | [diff] [blame] | 33 | import android.os.RemoteException; |
Jeff Sharkey | 0e8c871 | 2013-09-12 21:59:06 -0700 | [diff] [blame] | 34 | import android.provider.DocumentsContract; |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 35 | import android.provider.DocumentsContract.Document; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 36 | import android.util.Log; |
| 37 | |
Steve McKay | f68210e | 2015-11-03 15:23:16 -0800 | [diff] [blame] | 38 | import com.android.documentsui.dirlist.DirectoryFragment; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 39 | import com.android.documentsui.model.DocumentInfo; |
| 40 | import com.android.documentsui.model.RootInfo; |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 41 | |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 42 | import libcore.io.IoUtils; |
| 43 | |
Jeff Sharkey | 0e8c871 | 2013-09-12 21:59:06 -0700 | [diff] [blame] | 44 | import java.io.FileNotFoundException; |
| 45 | |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 46 | public class DirectoryLoader extends AsyncTaskLoader<DirectoryResult> { |
Jeff Sharkey | 9dd0262 | 2013-09-27 16:44:11 -0700 | [diff] [blame] | 47 | |
| 48 | private static final String[] SEARCH_REJECT_MIMES = new String[] { Document.MIME_TYPE_DIR }; |
| 49 | |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 50 | private final ForceLoadContentObserver mObserver = new ForceLoadContentObserver(); |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 51 | |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 52 | private final int mType; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 53 | private final RootInfo mRoot; |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 54 | private final Uri mUri; |
Jeff Sharkey | d10f049 | 2013-09-09 17:35:46 -0700 | [diff] [blame] | 55 | private final int mUserSortOrder; |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 56 | private final boolean mSearchMode; |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 57 | |
Steve McKay | 7776aa5 | 2016-01-25 19:00:22 -0800 | [diff] [blame] | 58 | private DocumentInfo mDoc; |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 59 | private CancellationSignal mSignal; |
| 60 | private DirectoryResult mResult; |
| 61 | |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 62 | |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 63 | public DirectoryLoader(Context context, int type, RootInfo root, DocumentInfo doc, Uri uri, |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 64 | int userSortOrder, boolean inSearchMode) { |
Jeff Sharkey | f63b777 | 2013-10-01 17:57:41 -0700 | [diff] [blame] | 65 | super(context, ProviderExecutor.forAuthority(root.authority)); |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 66 | mType = type; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 67 | mRoot = root; |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 68 | mUri = uri; |
Jeff Sharkey | d10f049 | 2013-09-09 17:35:46 -0700 | [diff] [blame] | 69 | mUserSortOrder = userSortOrder; |
Steve McKay | 7776aa5 | 2016-01-25 19:00:22 -0800 | [diff] [blame] | 70 | mDoc = doc; |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 71 | mSearchMode = inSearchMode; |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | @Override |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 75 | public final DirectoryResult loadInBackground() { |
| 76 | synchronized (this) { |
| 77 | if (isLoadInBackgroundCanceled()) { |
| 78 | throw new OperationCanceledException(); |
| 79 | } |
| 80 | mSignal = new CancellationSignal(); |
| 81 | } |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 82 | |
| 83 | final ContentResolver resolver = getContext().getContentResolver(); |
Jeff Sharkey | d82b26b | 2013-09-02 15:07:28 -0700 | [diff] [blame] | 84 | final String authority = mUri.getAuthority(); |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 85 | |
| 86 | final DirectoryResult result = new DirectoryResult(); |
| 87 | |
Jeff Sharkey | 0e8c871 | 2013-09-12 21:59:06 -0700 | [diff] [blame] | 88 | // Use default document when searching |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 89 | if (mSearchMode) { |
Jeff Sharkey | 0e8c871 | 2013-09-12 21:59:06 -0700 | [diff] [blame] | 90 | final Uri docUri = DocumentsContract.buildDocumentUri( |
| 91 | mRoot.authority, mRoot.documentId); |
| 92 | try { |
| 93 | mDoc = DocumentInfo.fromUri(resolver, docUri); |
| 94 | } catch (FileNotFoundException e) { |
| 95 | Log.w(TAG, "Failed to query", e); |
| 96 | result.exception = e; |
| 97 | return result; |
| 98 | } |
| 99 | } |
| 100 | |
Jeff Sharkey | d10f049 | 2013-09-09 17:35:46 -0700 | [diff] [blame] | 101 | if (mUserSortOrder != State.SORT_ORDER_UNKNOWN) { |
| 102 | result.sortOrder = mUserSortOrder; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 103 | } else { |
| 104 | if ((mDoc.flags & Document.FLAG_DIR_PREFERS_LAST_MODIFIED) != 0) { |
| 105 | result.sortOrder = State.SORT_ORDER_LAST_MODIFIED; |
| 106 | } else { |
| 107 | result.sortOrder = State.SORT_ORDER_DISPLAY_NAME; |
| 108 | } |
| 109 | } |
| 110 | |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 111 | // Search always uses ranking from provider |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 112 | if (mSearchMode) { |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 113 | result.sortOrder = State.SORT_ORDER_UNKNOWN; |
| 114 | } |
| 115 | |
Steve McKay | 7776aa5 | 2016-01-25 19:00:22 -0800 | [diff] [blame] | 116 | if (DEBUG) |
| 117 | Log.d(TAG, "userSortOrder=" + mUserSortOrder + ", sortOrder=" + result.sortOrder); |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 118 | |
Jeff Sharkey | f63b777 | 2013-10-01 17:57:41 -0700 | [diff] [blame] | 119 | ContentProviderClient client = null; |
Steve McKay | 7776aa5 | 2016-01-25 19:00:22 -0800 | [diff] [blame] | 120 | Cursor cursor = null; |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 121 | try { |
Jeff Sharkey | f63b777 | 2013-10-01 17:57:41 -0700 | [diff] [blame] | 122 | client = DocumentsApplication.acquireUnstableProviderOrThrow(resolver, authority); |
Jeff Sharkey | f63b777 | 2013-10-01 17:57:41 -0700 | [diff] [blame] | 123 | cursor = client.query( |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 124 | mUri, null, null, null, getQuerySortOrder(result.sortOrder), mSignal); |
Makoto Onuki | 7777875 | 2015-07-01 14:55:14 -0700 | [diff] [blame] | 125 | if (cursor == null) { |
| 126 | throw new RemoteException("Provider returned null"); |
| 127 | } |
| 128 | |
Jeff Sharkey | 20b3227 | 2013-09-03 15:25:52 -0700 | [diff] [blame] | 129 | cursor.registerContentObserver(mObserver); |
| 130 | |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 131 | cursor = new RootCursorWrapper(mUri.getAuthority(), mRoot.rootId, cursor, -1); |
Jeff Sharkey | d82b26b | 2013-09-02 15:07:28 -0700 | [diff] [blame] | 132 | |
Aga Wronska | af5ace5 | 2016-02-17 13:50:42 -0800 | [diff] [blame] | 133 | if (mSearchMode) { |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 134 | // Filter directories out of search results, for now |
Jeff Sharkey | 9dd0262 | 2013-09-27 16:44:11 -0700 | [diff] [blame] | 135 | cursor = new FilteringCursorWrapper(cursor, null, SEARCH_REJECT_MIMES); |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 136 | } |
| 137 | |
Jeff Sharkey | f63b777 | 2013-10-01 17:57:41 -0700 | [diff] [blame] | 138 | result.client = client; |
Jeff Sharkey | a35ac2d | 2013-09-10 12:04:26 -0700 | [diff] [blame] | 139 | result.cursor = cursor; |
Jeff Sharkey | 1d890e0 | 2013-08-15 11:24:03 -0700 | [diff] [blame] | 140 | } catch (Exception e) { |
Jeff Sharkey | 0e8c871 | 2013-09-12 21:59:06 -0700 | [diff] [blame] | 141 | Log.w(TAG, "Failed to query", e); |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 142 | result.exception = e; |
Jeff Sharkey | f63b777 | 2013-10-01 17:57:41 -0700 | [diff] [blame] | 143 | ContentProviderClient.releaseQuietly(client); |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 144 | } finally { |
| 145 | synchronized (this) { |
| 146 | mSignal = null; |
| 147 | } |
Jeff Sharkey | 1d890e0 | 2013-08-15 11:24:03 -0700 | [diff] [blame] | 148 | } |
Jeff Sharkey | a4d1f22 | 2013-09-07 14:45:03 -0700 | [diff] [blame] | 149 | |
Jeff Sharkey | 46899c8 | 2013-08-18 22:26:48 -0700 | [diff] [blame] | 150 | return result; |
Jeff Sharkey | 1d890e0 | 2013-08-15 11:24:03 -0700 | [diff] [blame] | 151 | } |
| 152 | |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 153 | @Override |
| 154 | public void cancelLoadInBackground() { |
| 155 | super.cancelLoadInBackground(); |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 156 | |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 157 | synchronized (this) { |
| 158 | if (mSignal != null) { |
| 159 | mSignal.cancel(); |
Jeff Sharkey | 46899c8 | 2013-08-18 22:26:48 -0700 | [diff] [blame] | 160 | } |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 161 | } |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 162 | } |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 163 | |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 164 | @Override |
| 165 | public void deliverResult(DirectoryResult result) { |
| 166 | if (isReset()) { |
| 167 | IoUtils.closeQuietly(result); |
| 168 | return; |
| 169 | } |
| 170 | DirectoryResult oldResult = mResult; |
| 171 | mResult = result; |
| 172 | |
| 173 | if (isStarted()) { |
| 174 | super.deliverResult(result); |
| 175 | } |
| 176 | |
| 177 | if (oldResult != null && oldResult != result) { |
| 178 | IoUtils.closeQuietly(oldResult); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | @Override |
| 183 | protected void onStartLoading() { |
| 184 | if (mResult != null) { |
| 185 | deliverResult(mResult); |
| 186 | } |
| 187 | if (takeContentChanged() || mResult == null) { |
| 188 | forceLoad(); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | protected void onStopLoading() { |
| 194 | cancelLoad(); |
| 195 | } |
| 196 | |
| 197 | @Override |
| 198 | public void onCanceled(DirectoryResult result) { |
| 199 | IoUtils.closeQuietly(result); |
| 200 | } |
| 201 | |
| 202 | @Override |
| 203 | protected void onReset() { |
| 204 | super.onReset(); |
| 205 | |
| 206 | // Ensure the loader is stopped |
| 207 | onStopLoading(); |
| 208 | |
| 209 | IoUtils.closeQuietly(mResult); |
| 210 | mResult = null; |
| 211 | |
| 212 | getContext().getContentResolver().unregisterContentObserver(mObserver); |
| 213 | } |
| 214 | |
Jeff Sharkey | d82b26b | 2013-09-02 15:07:28 -0700 | [diff] [blame] | 215 | public static String getQuerySortOrder(int sortOrder) { |
| 216 | switch (sortOrder) { |
Jeff Sharkey | b362044 | 2013-09-01 18:41:04 -0700 | [diff] [blame] | 217 | case SORT_ORDER_DISPLAY_NAME: |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 218 | return Document.COLUMN_DISPLAY_NAME + " ASC"; |
Jeff Sharkey | b362044 | 2013-09-01 18:41:04 -0700 | [diff] [blame] | 219 | case SORT_ORDER_LAST_MODIFIED: |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 220 | return Document.COLUMN_LAST_MODIFIED + " DESC"; |
Jeff Sharkey | b362044 | 2013-09-01 18:41:04 -0700 | [diff] [blame] | 221 | case SORT_ORDER_SIZE: |
Jeff Sharkey | ac9e627 | 2013-08-31 21:27:44 -0700 | [diff] [blame] | 222 | return Document.COLUMN_SIZE + " DESC"; |
| 223 | default: |
| 224 | return null; |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 225 | } |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 226 | } |
Jeff Sharkey | a5defe3 | 2013-08-05 17:56:48 -0700 | [diff] [blame] | 227 | } |