001/* 002 * Copyright 2012 GWT-Bootstrap 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package com.github.gwtbootstrap.client.ui.base; 017 018/** 019 * Interface for components that can be shown or hidden. 020 * 021 * @since 2.0.4.0 022 * 023 * @author Carlos Alexandro Becker 024 * 025 */ 026public interface HasVisibility { 027 028 /** 029 * Shows the widget if it was previously hidden. 030 */ 031 void show(); 032 033 /** 034 * Hides the widget if it was previously shown. 035 */ 036 void hide(); 037 038 /** 039 * Toggles the view state of the widget. 040 * 041 * <p> 042 * It will be hidden if it was previously shown and shown if it was 043 * previously hidden. 044 */ 045 void toggle(); 046}