2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 * This script, when included in a html file, builds a neat breadcrumb trail
19 * based on its url. That is, if it doesn't contains bugs (I'm relatively
23 * <script type="text/javascript" language="JavaScript" src="breadcrumbs.js"></script>
27 * IE 5 on Mac doesn't know Array.push.
29 * Implement it - courtesy to fritz.
31 var abc = new Array();
33 Array.prototype.push = function(what){this[this.length]=what}
36 /* ========================================================================
38 ======================================================================== */
41 * Two-dimensional array containing extra crumbs to place at the front of
42 * the trail. Specify first the name of the crumb, then the URI that belongs
43 * to it. You'll need to modify this for every domain or subdomain where
44 * you use this script (you can leave it as an empty array if you wish)
46 var PREPREND_CRUMBS = new Array();
48 var link1 = "@skinconfig.trail.link1.name@";
49 var link2 = "@skinconfig.trail.link2.name@";
50 var link3 = "@skinconfig.trail.link3.name@";
52 var href1 = "@skinconfig.trail.link1.href@";
53 var href2 = "@skinconfig.trail.link2.href@";
54 var href3 = "@skinconfig.trail.link3.href@";
56 if(!(link1=="")&&!link1.indexOf( "@" ) == 0){
57 PREPREND_CRUMBS.push( new Array( link1, href1 ) );
59 if(!(link2=="")&&!link2.indexOf( "@" ) == 0){
60 PREPREND_CRUMBS.push( new Array( link2, href2 ) );
62 if(!(link3=="")&&!link3.indexOf( "@" ) == 0){
63 PREPREND_CRUMBS.push( new Array( link3, href3 ) );
67 * String to include between crumbs:
69 var DISPLAY_SEPARATOR = " > ";
71 * String to include at the beginning of the trail
73 var DISPLAY_PREPREND = " > ";
75 * String to include at the end of the trail
77 var DISPLAY_POSTPREND = "";
80 * CSS Class to use for a single crumb:
82 var CSS_CLASS_CRUMB = "breadcrumb";
85 * CSS Class to use for the complete trail:
87 var CSS_CLASS_TRAIL = "breadcrumbTrail";
90 * CSS Class to use for crumb separator:
92 var CSS_CLASS_SEPARATOR = "crumbSeparator";
95 * Array of strings containing common file extensions. We use this to
96 * determine what part of the url to ignore (if it contains one of the
97 * string specified here, we ignore it).
99 var FILE_EXTENSIONS = new Array( ".html", ".htm", ".jsp", ".php", ".php3", ".php4" );
102 * String that separates parts of the breadcrumb trail from each other.
103 * When this is no longer a slash, I'm sure I'll be old and grey.
105 var PATH_SEPARATOR = "/";
107 /* ========================================================================
109 ======================================================================== */
111 * Capitalize first letter of the provided string and return the modified
114 function sentenceCase( string )
116 //var lower = string.toLowerCase();
117 //return lower.substr(0,1).toUpperCase() + lower.substr(1);
121 * Returns an array containing the names of all the directories in the
122 * current document URL
124 function getDirectoriesInURL()
126 var trail = document.location.pathname.split( PATH_SEPARATOR );
128 // check whether last section is a file or a directory
129 var lastcrumb = trail[trail.length-1];
130 for( var i = 0; i < FILE_EXTENSIONS.length; i++ )
132 if( lastcrumb.indexOf( FILE_EXTENSIONS[i] ) )
134 // it is, remove it and send results
135 return trail.slice( 1, trail.length-1 );
139 // it's not; send the trail unmodified
140 return trail.slice( 1, trail.length );
143 /* ========================================================================
144 BREADCRUMB FUNCTIONALITY
145 ======================================================================== */
147 * Return a two-dimensional array describing the breadcrumbs based on the
148 * array of directories passed in.
150 function getBreadcrumbs( dirs )
155 // the array we will return
156 var crumbs = new Array();
160 for( var i = 0; i < dirs.length; i++ )
162 prefix += dirs[i] + postfix;
163 crumbs.push( new Array( dirs[i], prefix ) );
167 // preprend the PREPREND_CRUMBS
168 if(PREPREND_CRUMBS.length > 0 )
170 return PREPREND_CRUMBS.concat( crumbs );
177 * Return a string containing a simple text breadcrumb trail based on the
178 * two-dimensional array passed in.
180 function getCrumbTrail( crumbs )
182 var xhtml = DISPLAY_PREPREND;
184 for( var i = 0; i < crumbs.length; i++ )
186 xhtml += '<a href="' + crumbs[i][1] + '" >';
187 xhtml += unescape( crumbs[i][0] ) + '</a>';
188 if( i != (crumbs.length-1) )
190 xhtml += DISPLAY_SEPARATOR;
194 xhtml += DISPLAY_POSTPREND;
200 * Return a string containing an XHTML breadcrumb trail based on the
201 * two-dimensional array passed in.
203 function getCrumbTrailXHTML( crumbs )
205 var xhtml = '<span class="' + CSS_CLASS_TRAIL + '">';
206 xhtml += DISPLAY_PREPREND;
208 for( var i = 0; i < crumbs.length; i++ )
210 xhtml += '<a href="' + crumbs[i][1] + '" class="' + CSS_CLASS_CRUMB + '">';
211 xhtml += unescape( crumbs[i][0] ) + '</a>';
212 if( i != (crumbs.length-1) )
214 xhtml += '<span class="' + CSS_CLASS_SEPARATOR + '">' + DISPLAY_SEPARATOR + '</span>';
218 xhtml += DISPLAY_POSTPREND;
224 /* ========================================================================
225 PRINT BREADCRUMB TRAIL
226 ======================================================================== */
228 // check if we're local; if so, only print the PREPREND_CRUMBS
229 if( document.location.href.toLowerCase().indexOf( "http://" ) == -1 )
231 document.write( getCrumbTrail( getBreadcrumbs() ) );
235 document.write( getCrumbTrail( getBreadcrumbs( getDirectoriesInURL() ) ) );