| /* |
| 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. |
| */ |
| package org.apache.wiki.tags; |
| |
| import org.apache.wiki.api.core.Session; |
| import org.apache.wiki.util.TextUtil; |
| |
| import java.io.IOException; |
| |
| /** |
| * Returns or clears the current messages associated with the user's wiki |
| * session. This tag accepts four attributes: <ul> <li><code>action</code> - |
| * if "clear", the messsages will be cleared. Otherwise, this tag will always |
| * print the set of current messages as either a single <p> tag (if there |
| * is only one message) or a bulleted list (if there is more than one).</li> |
| * <li><code>prefix</code> - the string to prepend to the list of errors, if |
| * there are any; default is empty string</li> <li><code>topic</code> - a |
| * collection for messages, for example those associated with a particular web |
| * form. If not suppled, defaults to a generic (non-specific) collection</li> |
| * <li><code>div</code> - the <code>div</code> class to wrap the |
| * messages in; if not supplied, <code>information</code> is assumed</li></ul> |
| * @since 2.3.54 |
| */ |
| public class MessagesTag extends WikiTagBase { |
| |
| private static final long serialVersionUID = 0L; |
| |
| private String m_action = null; |
| private String m_prefix = ""; |
| private String m_topic = null; |
| private String m_div = "information"; |
| |
| private static final String CLEAR = "clear"; |
| |
| @Override |
| public void initTag() { |
| super.initTag(); |
| m_action = m_topic = null; |
| m_prefix = ""; |
| m_div = "information"; |
| } |
| |
| public void setTopic( final String topic ) { |
| m_topic = topic; |
| } |
| |
| public void setPrefix( final String prefix ) { |
| m_prefix = prefix; |
| } |
| |
| public void setDiv( final String div ) { |
| m_div = div; |
| } |
| |
| public void setAction( final String action ) { |
| m_action = action.toLowerCase(); |
| } |
| |
| @Override |
| public final int doWikiStartTag() throws IOException { |
| final Session session = m_wikiContext.getWikiSession(); |
| if( CLEAR.equals( m_action ) ) { |
| if( m_topic == null ) { |
| session.clearMessages(); |
| } else { |
| session.clearMessages( m_topic ); |
| } |
| } else { |
| final String[] messages = ( m_topic == null ) ? session.getMessages() : session.getMessages( m_topic ); |
| if( messages.length > 0 ) { |
| final StringBuilder sb = new StringBuilder(); |
| if( messages.length == 1 ) { |
| sb.append( "<div class=\"" ).append( m_div ).append( "\">" ) |
| .append( m_prefix ) |
| .append( TextUtil.replaceEntities( messages[ 0 ] ) ) |
| .append( "</div>" ); |
| } else { |
| sb.append( "<div class=\"" ).append( m_div ).append( "\">" ).append( m_prefix ); |
| sb.append( "<ul>" ); |
| for( final String message : messages ) { |
| sb.append( "<li>" ).append( TextUtil.replaceEntities( message ) ).append( "</li>" ); |
| } |
| sb.append( "</ul></div>" ); |
| } |
| pageContext.getOut().println( sb.toString() ); |
| } |
| } |
| return SKIP_BODY; |
| } |
| |
| } |