MtpDocumentsProvider.java revision 124d060bc980c7555616ff9d07a4dc3b8f3cd341
1c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono/* 2c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * Copyright (C) 2015 The Android Open Source Project 3c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * 4c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * Licensed under the Apache License, Version 2.0 (the "License"); 5c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * you may not use this file except in compliance with the License. 6c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * You may obtain a copy of the License at 7c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * 8c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * http://www.apache.org/licenses/LICENSE-2.0 9c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * 10c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * Unless required by applicable law or agreed to in writing, software 11c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * distributed under the License is distributed on an "AS IS" BASIS, 12c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * See the License for the specific language governing permissions and 14c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono * limitations under the License. 15c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono */ 16c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 17c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironopackage com.android.mtp; 18c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 19d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hironoimport android.content.ContentResolver; 203faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hironoimport android.content.res.AssetFileDescriptor; 21c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport android.database.Cursor; 2250d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hironoimport android.database.MatrixCursor; 233faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hironoimport android.graphics.Point; 24c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport android.os.CancellationSignal; 25c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport android.os.ParcelFileDescriptor; 26d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hironoimport android.provider.DocumentsContract; 27c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport android.provider.DocumentsContract.Document; 28c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport android.provider.DocumentsContract.Root; 29c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport android.provider.DocumentsProvider; 30d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hironoimport android.util.Log; 31d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 32d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hironoimport com.android.internal.annotations.VisibleForTesting; 33d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 34c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironoimport java.io.FileNotFoundException; 35d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hironoimport java.io.IOException; 36c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 37d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono/** 38d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono * DocumentsProvider for MTP devices. 39d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono */ 40c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hironopublic class MtpDocumentsProvider extends DocumentsProvider { 412efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono static final String AUTHORITY = "com.android.mtp.documents"; 422efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono static final String TAG = "MtpDocumentsProvider"; 43c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono private static final String[] DEFAULT_ROOT_PROJECTION = new String[] { 44c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono Root.COLUMN_ROOT_ID, Root.COLUMN_FLAGS, Root.COLUMN_ICON, 45c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono Root.COLUMN_TITLE, Root.COLUMN_DOCUMENT_ID, 46c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono Root.COLUMN_AVAILABLE_BYTES, 47c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono }; 48c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono private static final String[] DEFAULT_DOCUMENT_PROJECTION = new String[] { 49c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono Document.COLUMN_DOCUMENT_ID, Document.COLUMN_MIME_TYPE, 50c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono Document.COLUMN_DISPLAY_NAME, Document.COLUMN_LAST_MODIFIED, 51c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono Document.COLUMN_FLAGS, Document.COLUMN_SIZE, 52c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono }; 53c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 542efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono private static MtpDocumentsProvider sSingleton; 552efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono 562efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono private MtpManager mMtpManager; 57d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono private ContentResolver mResolver; 588ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono private PipeManager mPipeManager; 59d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 602efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono /** 612efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono * Provides singleton instance to MtpDocumentsService. 622efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono */ 632efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono static MtpDocumentsProvider getInstance() { 642efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono return sSingleton; 652efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono } 662efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono 67c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono @Override 68c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono public boolean onCreate() { 692efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono sSingleton = this; 702efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono mMtpManager = new MtpManager(getContext()); 71d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono mResolver = getContext().getContentResolver(); 728ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono mPipeManager = new PipeManager(); 738ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono 74c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono return true; 75c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono } 76c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 77d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono @VisibleForTesting 782efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono void onCreateForTesting(MtpManager mtpManager, ContentResolver resolver) { 792efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono this.mMtpManager = mtpManager; 80d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono this.mResolver = resolver; 81d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 82d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 83c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono @Override 84c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono public Cursor queryRoots(String[] projection) throws FileNotFoundException { 8550d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono if (projection == null) { 8650d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono projection = MtpDocumentsProvider.DEFAULT_ROOT_PROJECTION; 8750d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono } 8850d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono final MatrixCursor cursor = new MatrixCursor(projection); 8950d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono for (final int deviceId : mMtpManager.getOpenedDeviceIds()) { 9050d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono try { 9150d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono final MtpRoot[] roots = mMtpManager.getRoots(deviceId); 9250d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono // TODO: Add retry logic here. 9350d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono 9450d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono for (final MtpRoot root : roots) { 95e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono final Identifier rootIdentifier = new Identifier(deviceId, root.mStorageId); 9650d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono final MatrixCursor.RowBuilder builder = cursor.newRow(); 97e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono builder.add(Root.COLUMN_ROOT_ID, rootIdentifier.toRootId()); 9850d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono builder.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_IS_CHILD); 9950d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono builder.add(Root.COLUMN_TITLE, root.mDescription); 10050d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono builder.add( 10150d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono Root.COLUMN_DOCUMENT_ID, 102e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono rootIdentifier.toDocumentId()); 10350d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono builder.add(Root.COLUMN_AVAILABLE_BYTES , root.mFreeSpace); 10450d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono } 10550d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono } catch (IOException error) { 10650d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono Log.d(TAG, error.getMessage()); 10750d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono } 10850d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono } 10950d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono cursor.setNotificationUri( 11050d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono mResolver, DocumentsContract.buildRootsUri(MtpDocumentsProvider.AUTHORITY)); 11150d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono return cursor; 112c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono } 113c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 114c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono @Override 115c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono public Cursor queryDocument(String documentId, String[] projection) 116c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono throws FileNotFoundException { 117e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono if (projection == null) { 118e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono projection = MtpDocumentsProvider.DEFAULT_DOCUMENT_PROJECTION; 119e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 120e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono final Identifier identifier = Identifier.createFromDocumentId(documentId); 121e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono 122e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono MtpDocument document = null; 123e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono if (identifier.mObjectHandle != MtpDocument.DUMMY_HANDLE_FOR_ROOT) { 124e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono try { 125e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono document = mMtpManager.getDocument(identifier.mDeviceId, identifier.mObjectHandle); 126e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } catch (IOException e) { 127e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono throw new FileNotFoundException(e.getMessage()); 128e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 129e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } else { 130e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono MtpRoot[] roots; 131e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono try { 132e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono roots = mMtpManager.getRoots(identifier.mDeviceId); 133e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono if (roots != null) { 134e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono for (final MtpRoot root : roots) { 135e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono if (identifier.mStorageId == root.mStorageId) { 136e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono document = new MtpDocument(root); 137e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono break; 138e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 139e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 140e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 141e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono if (document == null) { 142e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono throw new FileNotFoundException(); 143e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 144e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } catch (IOException e) { 145e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono throw new FileNotFoundException(e.getMessage()); 146e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 147e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono } 148e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono 149e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono final MatrixCursor cursor = new MatrixCursor(projection); 150124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono document.addToCursor( 151124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono new Identifier(identifier.mDeviceId, identifier.mStorageId), cursor.newRow()); 152e5323b7493f2bc1537d7e6b2d4595d69fd01d72eDaichi Hirono return cursor; 153c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono } 154c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 155124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono // TODO: Support background loading for large number of files. 156c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono @Override 157124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono public Cursor queryChildDocuments(String parentDocumentId, 158124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono String[] projection, String sortOrder) throws FileNotFoundException { 159124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono if (projection == null) { 160124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono projection = MtpDocumentsProvider.DEFAULT_DOCUMENT_PROJECTION; 161124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } 162124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono final Identifier parentIdentifier = Identifier.createFromDocumentId(parentDocumentId); 163124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono int parentHandle = parentIdentifier.mObjectHandle; 164124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono // Need to pass the special value MtpManager.OBJECT_HANDLE_ROOT_CHILDREN to 165124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono // getObjectHandles if we would like to obtain children under the root. 166124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono if (parentHandle == MtpDocument.DUMMY_HANDLE_FOR_ROOT) { 167124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono parentHandle = MtpManager.OBJECT_HANDLE_ROOT_CHILDREN; 168124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } 169124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono try { 170124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono final MatrixCursor cursor = new MatrixCursor(projection); 171124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono final Identifier rootIdentifier = new Identifier( 172124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono parentIdentifier.mDeviceId, parentIdentifier.mStorageId); 173124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono final int[] objectHandles = mMtpManager.getObjectHandles( 174124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono parentIdentifier.mDeviceId, parentIdentifier.mStorageId, parentHandle); 175124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono for (int i = 0; i < objectHandles.length; i++) { 176124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono try { 177124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono final MtpDocument document = mMtpManager.getDocument( 178124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono parentIdentifier.mDeviceId, objectHandles[i]); 179124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono document.addToCursor(rootIdentifier, cursor.newRow()); 180124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } catch (IOException error) { 181124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono cursor.close(); 182124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono throw new FileNotFoundException(error.getMessage()); 183124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } 184124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } 185124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono return cursor; 186124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } catch (IOException exception) { 187124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono throw new FileNotFoundException(exception.getMessage()); 188124d060bc980c7555616ff9d07a4dc3b8f3cd341Daichi Hirono } 189c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono } 190c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono 191c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono @Override 1928ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono public ParcelFileDescriptor openDocument( 1938ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono String documentId, String mode, CancellationSignal signal) 1948ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono throws FileNotFoundException { 1958ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono if (!"r".equals(mode) && !"w".equals(mode)) { 1968ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono // TODO: Support seekable file. 1978ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono throw new UnsupportedOperationException("The provider does not support seekable file."); 1988ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono } 1998ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono final Identifier identifier = Identifier.createFromDocumentId(documentId); 2008ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono try { 20152652ac7a5f479f7f5e24f78778203bd88c0c4f4Tomasz Mikolajewski return mPipeManager.readDocument(mMtpManager, identifier); 2028ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono } catch (IOException error) { 2038ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono throw new FileNotFoundException(error.getMessage()); 2048ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono } 205d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 206d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 2073faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono @Override 2083faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono public AssetFileDescriptor openDocumentThumbnail( 2093faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono String documentId, 2103faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono Point sizeHint, 2113faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono CancellationSignal signal) throws FileNotFoundException { 2123faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono final Identifier identifier = Identifier.createFromDocumentId(documentId); 2133faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono try { 2143faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono return new AssetFileDescriptor( 2153faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono mPipeManager.readThumbnail(mMtpManager, identifier), 2163faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono 0, 2173faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono AssetFileDescriptor.UNKNOWN_LENGTH); 2183faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono } catch (IOException error) { 2193faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono throw new FileNotFoundException(error.getMessage()); 2203faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono } 2213faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono } 2223faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono 2233faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono @Override 2243faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono public void deleteDocument(String documentId) throws FileNotFoundException { 2253faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono try { 2263faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono final Identifier identifier = Identifier.createFromDocumentId(documentId); 2273faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono final int parentHandle = 2283faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono mMtpManager.getParent(identifier.mDeviceId, identifier.mObjectHandle); 2293faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono mMtpManager.deleteDocument(identifier.mDeviceId, identifier.mObjectHandle); 2303faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono notifyChildDocumentsChange(new Identifier( 2313faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono identifier.mDeviceId, identifier.mStorageId, parentHandle).toDocumentId()); 2323faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono } catch (IOException error) { 2333faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono throw new FileNotFoundException(error.getMessage()); 2343faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono } 2353faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono } 2363faa43a4a6f270e2e1e2ec55b77508084af16757Daichi Hirono 2372efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono void openDevice(int deviceId) throws IOException { 2382efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono mMtpManager.openDevice(deviceId); 23950d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono notifyRootsChange(); 240d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 241d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 2422efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono void closeDevice(int deviceId) throws IOException { 2432efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono mMtpManager.closeDevice(deviceId); 24450d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono notifyRootsChange(); 245d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 246d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 247d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono void closeAllDevices() { 248d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono boolean closed = false; 2492efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono for (int deviceId : mMtpManager.getOpenedDeviceIds()) { 250d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono try { 2512efe4cac49efd87c5f14f48051a5556f437cedc9Daichi Hirono mMtpManager.closeDevice(deviceId); 252d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono closed = true; 253d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } catch (IOException d) { 254d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono Log.d(TAG, "Failed to close the MTP device: " + deviceId); 255d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 256d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 257d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono if (closed) { 25850d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono notifyRootsChange(); 259d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 260d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono } 261d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono 26250d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono boolean hasOpenedDevices() { 26350d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono return mMtpManager.getOpenedDeviceIds().length != 0; 26450d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono } 26550d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono 26650d17aa871d9ca645a8e7af64df8866b85aee245Daichi Hirono private void notifyRootsChange() { 267d5152429e11d3a831a7993dc67ddf69f69bd3912Daichi Hirono mResolver.notifyChange( 2688ba419119d50a031160cab54bef6899bd0051ea9Daichi Hirono DocumentsContract.buildRootsUri(MtpDocumentsProvider.AUTHORITY), null, false); 269c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono } 2705fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono 2715fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono private void notifyChildDocumentsChange(String parentDocumentId) { 2725fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono mResolver.notifyChange( 2735fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono DocumentsContract.buildChildDocumentsUri(AUTHORITY, parentDocumentId), 2745fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono null, 2755fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono false); 2765fecc6cf032bbbc2616dd2342a50656bf2857832Daichi Hirono } 277c00d5d4d82620beba271e63875b93ad9cc39523fDaichi Hirono} 278