1d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey/* 2d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * Copyright (C) 2013 The Android Open Source Project 3d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * 4d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * Licensed under the Apache License, Version 2.0 (the "License"); 5d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * you may not use this file except in compliance with the License. 6d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * You may obtain a copy of the License at 7d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * 8d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * http://www.apache.org/licenses/LICENSE-2.0 9d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * 10d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * Unless required by applicable law or agreed to in writing, software 11d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * distributed under the License is distributed on an "AS IS" BASIS, 12d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * See the License for the specific language governing permissions and 14d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * limitations under the License. 15d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey */ 16d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 17d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeypackage com.android.documentsui; 18d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 19d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeyimport static com.android.documentsui.DocumentsActivity.TAG; 205d321d472d9983db52610393e6506e2b2d2da4bfJeff Sharkeyimport static com.android.documentsui.model.DocumentInfo.getCursorLong; 215d321d472d9983db52610393e6506e2b2d2da4bfJeff Sharkeyimport static com.android.documentsui.model.DocumentInfo.getCursorString; 22d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 23d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeyimport android.database.AbstractCursor; 24d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeyimport android.database.Cursor; 25d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeyimport android.os.Bundle; 26d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeyimport android.provider.DocumentsContract.Document; 27d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeyimport android.util.Log; 28d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 29d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey/** 30d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey * Cursor wrapper that filters MIME types not matching given list. 31d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey */ 32d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkeypublic class FilteringCursorWrapper extends AbstractCursor { 33d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey private final Cursor mCursor; 34d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 35d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey private final int[] mPosition; 36d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey private int mCount; 37d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 38d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public FilteringCursorWrapper(Cursor cursor, String[] acceptMimes) { 396efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey this(cursor, acceptMimes, null, Long.MIN_VALUE); 404ec973925fc2cd18f9ec0d0ca5af588564fded27Jeff Sharkey } 414ec973925fc2cd18f9ec0d0ca5af588564fded27Jeff Sharkey 424ec973925fc2cd18f9ec0d0ca5af588564fded27Jeff Sharkey public FilteringCursorWrapper(Cursor cursor, String[] acceptMimes, String[] rejectMimes) { 436efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey this(cursor, acceptMimes, rejectMimes, Long.MIN_VALUE); 446efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey } 456efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey 466efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey public FilteringCursorWrapper( 476efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey Cursor cursor, String[] acceptMimes, String[] rejectMimes, long rejectBefore) { 48d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey mCursor = cursor; 49d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 50d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey final int count = cursor.getCount(); 51d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey mPosition = new int[count]; 52d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 53d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey cursor.moveToPosition(-1); 54e2515ac296d51e188b15790afd1e56b31d965ac8Jeff Sharkey while (cursor.moveToNext() && mCount < count) { 555d321d472d9983db52610393e6506e2b2d2da4bfJeff Sharkey final String mimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); 565d321d472d9983db52610393e6506e2b2d2da4bfJeff Sharkey final long lastModified = getCursorLong(cursor, Document.COLUMN_LAST_MODIFIED); 574ec973925fc2cd18f9ec0d0ca5af588564fded27Jeff Sharkey if (rejectMimes != null && MimePredicate.mimeMatches(rejectMimes, mimeType)) { 584ec973925fc2cd18f9ec0d0ca5af588564fded27Jeff Sharkey continue; 594ec973925fc2cd18f9ec0d0ca5af588564fded27Jeff Sharkey } 606efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey if (lastModified < rejectBefore) { 616efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey continue; 626efba22ce510352bb84910d6efc42fecafd31ed7Jeff Sharkey } 63d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey if (MimePredicate.mimeMatches(acceptMimes, mimeType)) { 64d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey mPosition[mCount++] = cursor.getPosition(); 65d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 66d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 67d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 68d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey Log.d(TAG, "Before filtering " + cursor.getCount() + ", after " + mCount); 69d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 70d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 71d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 72d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public Bundle getExtras() { 73d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getExtras(); 74d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 75d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 76d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 77d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public void close() { 78d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey super.close(); 79d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey mCursor.close(); 80d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 81d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 82d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 83d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public boolean onMove(int oldPosition, int newPosition) { 84d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.moveToPosition(mPosition[newPosition]); 85d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 86d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 87d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 88d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public String[] getColumnNames() { 89d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getColumnNames(); 90d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 91d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 92d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 93d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public int getCount() { 94d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCount; 95d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 96d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 97d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 98d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public double getDouble(int column) { 99d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getDouble(column); 100d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 101d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 102d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 103d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public float getFloat(int column) { 104d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getFloat(column); 105d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 106d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 107d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 108d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public int getInt(int column) { 109d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getInt(column); 110d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 111d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 112d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 113d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public long getLong(int column) { 114d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getLong(column); 115d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 116d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 117d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 118d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public short getShort(int column) { 119d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getShort(column); 120d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 121d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 122d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 123d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public String getString(int column) { 124d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getString(column); 125d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 126d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 127d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 128d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public int getType(int column) { 129d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.getType(column); 130d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 131d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey 132d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey @Override 133d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey public boolean isNull(int column) { 134d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey return mCursor.isNull(column); 135d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey } 136d182bb641f228b2d28527a6aa86075f6358ab838Jeff Sharkey} 137