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/*
* Copyright 2000-2016 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.ui.renderers;
import elemental.json.JsonValue;
/**
* A Renderer that displays a button with a textual caption. The value of the
* corresponding property is used as the caption. Click listeners can be added
* to the renderer, invoked when any of the rendered buttons is clicked.
*
* @since 7.4
* @author Vaadin Ltd
*/
public class ButtonRenderer extends ClickableRenderer<String> {
/**
* Creates a new button renderer.
*
* @param nullRepresentation
* the textual representation of {@code null} value
*/
public ButtonRenderer(String nullRepresentation) {
super(String.class, nullRepresentation);
}
/**
* Creates a new button renderer and adds the given click listener to it.
*
* @param listener
* the click listener to register
* @param nullRepresentation
* the textual representation of {@code null} value
*/
public ButtonRenderer(RendererClickListener listener,
String nullRepresentation) {
this(nullRepresentation);
addClickListener(listener);
}
/**
* Creates a new button renderer.
*/
public ButtonRenderer() {
this("");
}
/**
* Creates a new button renderer and adds the given click listener to it.
*
* @param listener
* the click listener to register
*/
public ButtonRenderer(RendererClickListener listener) {
this(listener, "");
}
@Override
public String getNullRepresentation() {
return super.getNullRepresentation();
}
}
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