/TalkBack/src/com/google/android/marvin/talkback/Filter.java
Java | 40 lines | 7 code | 4 blank | 29 comment | 0 complexity | c87a401664f9fb48fc94dcd2c7f6d81d MD5 | raw file
1/* 2 * Copyright (C) 2009 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 17package com.google.android.marvin.talkback; 18 19import android.content.Context; 20import android.os.Bundle; 21import android.view.accessibility.AccessibilityEvent; 22 23/** 24 * This interface defines the contract for writing filters. A filter either 25 * accepts or rejects an {@link AccessibilityEvent}. 26 * 27 * @author svetoslavganov@google.com (Svetoslav Ganov) 28 */ 29public interface Filter { 30 31 /** 32 * Check if the filter accepts a given <code>event</code>. 33 * 34 * @param event The event. 35 * @param context The context to be used for loading resources etc. 36 * @param args Additional arguments for the filter. 37 * @return True if the event is accepted, false otherwise. 38 */ 39 boolean accept(AccessibilityEvent event, Context context, Bundle args); 40}