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/*
 * Copyright 2009 Google Inc.
 * 
 * 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.google.gwt.user.client.ui;

import com.google.gwt.dom.client.ButtonElement;
import com.google.gwt.dom.client.Document;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.safehtml.shared.SafeHtml;

/**
 * A standard push-button widget which will automatically submit its enclosing
 * {@link FormPanel} if any.
 * 
 * 

CSS Style Rules

*
*
.gwt-SubmitButton
*
the outer element
*
*/ public class SubmitButton extends Button { /** * Creates a SubmitButton widget that wraps an existing <button> * element. * * This element must already be attached to the document. If the element is * removed from the document, you must call * {@link RootPanel#detachNow(Widget)}. * * @param element the element to be wrapped */ public static Button wrap(com.google.gwt.dom.client.Element element) { // Assert that the element is attached. assert Document.get().getBody().isOrHasChild(element); SubmitButton button = new SubmitButton(element); assert "submit".equalsIgnoreCase(button.getButtonElement().getType()); // Mark it attached and remember it for cleanup. button.onAttach(); RootPanel.detachOnWindowClose(button); return button; } /** * Creates a button with no caption. */ public SubmitButton() { super(Document.get().createSubmitButtonElement()); setStyleName("gwt-SubmitButton"); } /** * Creates a button with the given HTML caption. * * @param html the HTML caption */ public SubmitButton(SafeHtml html) { this(html.asString()); } /** * Creates a button with the given HTML caption. * * @param html the HTML caption */ public SubmitButton(String html) { this(); setHTML(html); } /** * Creates a button with the given HTML caption and click listener. * * @param html the HTML caption * @param handler the click handler */ public SubmitButton(SafeHtml html, ClickHandler handler) { this(html.asString(), handler); } /** * Creates a button with the given HTML caption and click listener. * * @param html the HTML caption * @param handler the click handler */ public SubmitButton(String html, ClickHandler handler) { this(html); addClickHandler(handler); } /** * This constructor may be used by subclasses to explicitly use an existing * element. This element must be a <button> element with type submit. * * @param element the element to be used */ protected SubmitButton(com.google.gwt.dom.client.Element element) { super(element); assert "submit".equalsIgnoreCase(element. cast().getType()); } }




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