theme/orangewhite/csshover.htc

   1 <attach event="ondocumentready" handler="parseStylesheets" />
   2 <script language="JScript">
   3 /**
   4  *      PSUEDOS - V1.21.041022 - hover & active
   5  *      ---------------------------------------------
   6  *      Peterned - http://www.xs4all.nl/~peterned/
   7  *      (c) 2004 - Peter Nederlof
   8  *
   9  *      Credits  - Arnoud Berendsen
  10  *               - Martin Reurings
  11  *      for inspiring me and finding really sick bugs
  12  *
  13  *      howto: body { behavior:url("csshover.htc"); }
  14  *      ---------------------------------------------
  15  */
  16
  17 var currentSheet, doc = window.document;
  18 var activators = {
  19         onhover:{on:'onmouseover', off:'onmouseout'},
  20         onactive:{on:'onmousedown', off:'onmouseup'}
  21 }
  22
  23 function parseStylesheets() {
  24         var sheets = doc.styleSheets, l = sheets.length;
  25         for(var i=0; i<l; i++)
  26                 parseStylesheet(sheets[i]);
  27 }
  28         function parseStylesheet(sheet) {
  29                 var l, rules, imports;
  30                 if(sheet.imports) {
  31                         imports = sheet.imports, l = imports.length;
  32                         for(var i=0; i<l; i++)
  33                                 parseStylesheet(sheet.imports[i]);
  34                 }
  35
  36                 rules = (currentSheet = sheet).rules, l = rules.length;
  37                 for(var j=0; j<l; j++) parseCSSRule(rules[j]);
  38         }
  39
  40         function parseCSSRule(rule) {
  41                 var select = rule.selectorText, style = rule.style.cssText;
  42                 if(!(/(^|\s)(([^a]([^ ]+)?)|(a([^#.][^ ]+)+)):(hover|active)/i).test(select) || !style) return;
  43
  44                 var pseudo = select.replace(/[^:]+:([a-z-]+).*/i, 'on$1');
  45                 var newSelect = select.replace(/(\.([a-z0-9_-]+):[a-z]+)|(:[a-z]+)/gi, '.$2' + pseudo);
  46                 var className = (/\.([a-z0-9_-]*on(hover|active))/i).exec(newSelect)[1];
  47                 var affected = select.replace(/:hover.*$/, '');
  48                 var elements = getElementsBySelect(affected);
  49
  50                 currentSheet.addRule(newSelect, style);
  51                 for(var i=0; i<elements.length; i++)
  52                         new HoverElement(elements[i], className, activators[pseudo]);
  53         }
  54
  55 function HoverElement(node, className, events) {
  56         if(!node.hovers) node.hovers = {};
  57         if(node.hovers[className]) return;
  58         node.hovers[className] = true;
  59         node.attachEvent(events.on,
  60                 function() { node.className += ' ' + className; });
  61         node.attachEvent(events.off,
  62                 function() { node.className =
  63                         node.className.replace(new RegExp('\\s+'+className, 'g'),''); });
  64 }
  65
  66 function getElementsBySelect(rule) {
  67         var parts, nodes = [doc];
  68         parts = rule.split(' ');
  69         for(var i=0; i<parts.length; i++) {
  70                 nodes = getSelectedNodes(parts[i], nodes);
  71         }       return nodes;
  72 }
  73         function getSelectedNodes(select, elements) {
  74                 var result, node, nodes = [];
  75                 var classname = (/\.([a-z0-9_-]+)/i).exec(select);
  76                 var identify = (/\#([a-z0-9_-]+)/i).exec(select);
  77                 var tagName = (/^[a-z0-9]+/i).exec(select.toUpperCase()) || '*';
  78                 for(var i=0; i<elements.length; i++) {
  79                         result = elements[i].getElementsByTagName(tagName);
  80                         for(var j=0; j<result.length; j++) {
  81                                 node = result[j];
  82                                 if((identify && node.id != identify[1]) || (classname && !(new RegExp('\\b' +
  83                                         classname[1] + '\\b').exec(node.className)))) continue;
  84                                 nodes[nodes.length] = node;
  85                         }
  86                 }       return nodes;
  87         }
  88 </script>