1 /* 2 * Copyright (C) 2015 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.launcher3.accessibility; 18 19 import com.android.launcher3.CellLayout; 20 import com.android.launcher3.FolderPagedView; 21 import com.android.launcher3.R; 22 23 /** 24 * Implementation of {@link DragAndDropAccessibilityDelegate} to support DnD in a folder. 25 */ 26 public class FolderAccessibilityHelper extends DragAndDropAccessibilityDelegate { 27 28 /** 29 * 0-index position for the first cell in {@link #mView} in {@link #mParent}. 30 */ 31 private final int mStartPosition; 32 33 private final FolderPagedView mParent; 34 35 public FolderAccessibilityHelper(CellLayout layout) { 36 super(layout); 37 mParent = (FolderPagedView) layout.getParent(); 38 39 int index = mParent.indexOfChild(layout); 40 mStartPosition = index * layout.getCountX() * layout.getCountY(); 41 } 42 @Override 43 protected int intersectsValidDropTarget(int id) { 44 return Math.min(id, mParent.getAllocatedContentSize() - mStartPosition - 1); 45 } 46 47 @Override 48 protected String getLocationDescriptionForIconDrop(int id) { 49 return mContext.getString(R.string.move_to_position, id + mStartPosition + 1); 50 } 51 52 @Override 53 protected String getConfirmationForIconDrop(int id) { 54 return mContext.getString(R.string.item_moved); 55 } 56 } 57
