001 /* 002 Licensed to the Apache Software Foundation (ASF) under one 003 or more contributor license agreements. See the NOTICE file 004 distributed with this work for additional information 005 regarding copyright ownership. The ASF licenses this file 006 to you under the Apache License, Version 2.0 (the 007 "License"); you may not use this file except in compliance 008 with the License. You may obtain a copy of the License at 009 010 http://www.apache.org/licenses/LICENSE-2.0 011 012 Unless required by applicable law or agreed to in writing, 013 software distributed under the License is distributed on an 014 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 KIND, either express or implied. See the License for the 016 specific language governing permissions and limitations 017 under the License. 018 */ 019 package org.apache.wiki.tags; 020 021 import java.io.IOException; 022 import javax.servlet.jsp.JspWriter; 023 024 import org.apache.wiki.WikiContext; 025 import org.apache.wiki.WikiPage; 026 import org.apache.wiki.attachment.Attachment; 027 028 /** 029 * Writes a link to a Wiki page. Body of the link becomes the actual text. 030 * The link is written regardless to whether the page exists or not. 031 * 032 * <P><B>Attributes</B></P> 033 * <UL> 034 * <LI>page - Page name to refer to. Default is the current page. 035 * <LI>format - either "anchor" or "url" to output either an <A>... or just the HREF part of one. 036 * <LI>template - Which template should we link to. 037 * <LI>title - Is used in page actions to display hover text (tooltip) 038 * <LI>accesskey - Set an accesskey (ALT+[Char]) 039 * </UL> 040 * 041 * @since 2.0 042 */ 043 public class LinkToTag 044 extends WikiLinkTag 045 { 046 private static final long serialVersionUID = 0L; 047 048 private String m_version = null; 049 public String m_title = ""; 050 public String m_accesskey = ""; 051 052 public void initTag() 053 { 054 super.initTag(); 055 m_version = null; 056 } 057 058 public String getVersion() 059 { 060 return m_version; 061 } 062 063 public void setVersion( String arg ) 064 { 065 m_version = arg; 066 } 067 068 public void setTitle( String title ) 069 { 070 m_title = title; 071 } 072 073 public void setAccesskey( String access ) 074 { 075 m_accesskey = access; 076 } 077 078 079 public int doWikiStartTag() 080 throws IOException 081 { 082 String pageName = m_pageName; 083 boolean isattachment = false; 084 085 if( m_pageName == null ) 086 { 087 WikiPage p = m_wikiContext.getPage(); 088 089 if( p != null ) 090 { 091 pageName = p.getName(); 092 093 isattachment = p instanceof Attachment; 094 } 095 else 096 { 097 return SKIP_BODY; 098 } 099 } 100 101 JspWriter out = pageContext.getOut(); 102 String url; 103 String linkclass; 104 105 if( isattachment ) 106 { 107 url = m_wikiContext.getURL(WikiContext.ATTACH,pageName, 108 (getVersion() != null) ? "version="+getVersion() : null ); 109 linkclass = "attachment"; 110 } 111 else 112 { 113 StringBuffer params = new StringBuffer(); 114 if( getVersion() != null ) params.append( "version="+getVersion() ); 115 if( getTemplate() != null ) params.append( (params.length()>0?"&":"") + "skin="+getTemplate() ); 116 117 url = m_wikiContext.getURL( WikiContext.VIEW, pageName, 118 params.toString() ); 119 linkclass = "wikipage"; 120 } 121 122 switch( m_format ) 123 { 124 case ANCHOR: 125 out.print("<a class=\""+linkclass+"\" href=\""+url+"\" accesskey=\"" 126 + m_accesskey + "\" title=\"" + m_title + "\">"); 127 break; 128 case URL: 129 out.print( url ); 130 break; 131 } 132 133 return EVAL_BODY_INCLUDE; 134 } 135 136 }