JdbcMapper/beehive-netui-tags/src/main/java/org/apache/beehive/netui/tags/rendering/ButtonTag.java

97 lines
3.3 KiB
Java

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*
* $Header:$
*/
package org.apache.beehive.netui.tags.rendering;
import org.apache.beehive.netui.tags.html.HtmlConstants;
import java.util.HashMap;
/**
* Render the HTML <button> element. In HTML 4.01 the start and end tags are required.
*
* <p>This renderer is just used by the NetUI Button as an alternative to the &ltinput>
* HTML element rendered by the InputSubmitTag.
* </p>
*/
public abstract class ButtonTag extends TagHtmlBase implements HtmlConstants
{
public static void add(HashMap html, HashMap htmlQuirks, HashMap xhtml)
{
html.put(BUTTON_TAG, new HtmlRendering());
htmlQuirks.put(BUTTON_TAG, new HtmlRendering());
xhtml.put(BUTTON_TAG, new XhtmlRendering());
}
public static class State extends InputSubmitTag.State
{
}
public void doStartTag(AbstractRenderAppender writer, AbstractTagState renderState)
{
assert(writer != null) : "Parameter 'writer' must not be null";
assert(renderState != null) : "Parameter 'renderState' must not be null";
assert(renderState instanceof ButtonTag.State) : "Paramater 'renderState' must be an instance of ButtonTag.State";
State state = (State) renderState;
// Generate an HTML element
renderTag(writer, BUTTON);
if (state.type == null)
state.type = INPUT_SUBMIT;
renderAttribute(writer, TYPE, state.type);
renderAttribute(writer, NAME, state.name);
renderAttribute(writer, ID, state.id);
renderAttribute(writer, CLASS, state.styleClass);
renderAttribute(writer, VALUE, state.value);
renderDisabled(writer, state.disabled);
renderAttributes(AbstractHtmlState.ATTR_GENERAL, writer, state);
renderAttribute(writer, STYLE, state.style);
renderAttributes(AbstractHtmlState.ATTR_JAVASCRIPT, writer, state);
writer.append(">");
}
public void doEndTag(AbstractRenderAppender writer)
{
renderEndTag(writer, BUTTON);
}
abstract protected void renderDisabled(AbstractRenderAppender writer, boolean disabled);
private static class HtmlRendering extends ButtonTag
{
protected void renderDisabled(AbstractRenderAppender writer, boolean disabled)
{
if (disabled)
writer.append(" disabled");
}
}
private static class XhtmlRendering extends ButtonTag
{
protected void renderDisabled(AbstractRenderAppender writer, boolean disabled)
{
if (disabled)
renderAttribute(writer, "disabled", "disabled");
}
}
}