/TalkBack/src/com/google/android/marvin/talkback/speechrules/RuleSeekBar.java
Java | 58 lines | 28 code | 10 blank | 20 comment | 3 complexity | 9339abca001dca1ad286fed99f65b075 MD5 | raw file
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * 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, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 17package com.google.android.marvin.talkback.speechrules; 18 19import android.content.Context; 20import android.view.accessibility.AccessibilityEvent; 21import android.view.accessibility.AccessibilityNodeInfo; 22 23import com.google.android.marvin.talkback.AccessibilityNodeInfoUtils; 24import com.google.android.marvin.talkback.R; 25 26/** 27 * Formats speech for SeekBar widgets. 28 * 29 * @author alanv@google.com (Alan Viverette) 30 */ 31public class RuleSeekBar extends RuleDefault { 32 private static final String SEPARATOR = " "; 33 34 @Override 35 public boolean accept(AccessibilityNodeInfo node) { 36 return AccessibilityNodeInfoUtils 37 .nodeMatchesClassByType(node, android.widget.SeekBar.class); 38 } 39 40 @Override 41 public CharSequence 42 format(Context context, AccessibilityNodeInfo node, AccessibilityEvent event) { 43 final StringBuilder output = new StringBuilder(); 44 final CharSequence text = super.format(context, node, event); 45 46 output.append(context.getString(R.string.template_seek_bar, text)); 47 output.append(SEPARATOR); 48 49 if ((event != null) && (event.getItemCount() > 0)) { 50 final int percent = (100 * event.getCurrentItemIndex()) / event.getItemCount(); 51 52 output.append(context.getString(R.string.template_percent, percent)); 53 output.append(SEPARATOR); 54 } 55 56 return output; 57 } 58}