allison.js - allison-2.0.3 Documentation

var href_base = ‘%style_url%’.replace(/(.*/).*/, ‘$1’); // inline js is good for something

function $(id) {

if (document.getElementById)
  elem = document.getElementById(id);
else if ( document.all )
  elem = eval("document.all." + id);
else
  return false;
return elem;

}

function toggle(id) {
  elem = $(id);
  elemStyle = elem.style;   
  if (elemStyle.display == "block") {
    elemStyle.display = "none"
  } else {
    elemStyle.display = "block"
  }
  return true;
}

function toggleText(id) {
  elem = $(id)
  if (m = elem.innerHTML.match(/(Hide)(.*)/)) {
    elem.innerHTML = "Show" + m[2];
  } else if (m = elem.innerHTML.match(/(Show)(.*)/)) {
    elem.innerHTML = "Hide" + m[2];
  }
  return true;
}

function span(s, klass) {

return '<span class="' + klass + '">' + s + '</span>';

}

function highlightSymbols() {

pres = document.getElementsByTagName('pre');
for(var i = 0; i < pres.length; i++) {
  pre = pres[i];
  spans = pre.getElementsByTagName('span');
  for(var k = 0; k < spans.length; k++) {
    span = spans[k];
    if (span.className.match(/ruby-identifier/)) {
      if (span.innerHTML.match(/^:/)) {
        span.className += " ruby-symbol";
      }
    }
  }
}

}

function hasClass(obj) {
    var result = false;
    if (obj.getAttributeNode("class") != null) {
        result = obj.getAttributeNode("class").value;
    }
    return result;
 }   

function stripe() {
   var even = true;
   var color = "#e4ebed";
   var tables = document.getElementsByTagName('table');
   if (tables.length == 0) { return; }
   for (var h = 0; h < tables.length; h++) {
       var trs = tables[h].getElementsByTagName("tr");
       for (var i = 0; i < trs.length; i++) {
         var tds = trs[i].getElementsByTagName("td");
           for (var j = 0; j < tds.length; j++) {       
             if (hasClass(tds[j]) != "first") {                
             var mytd = tds[j];
             if (even) {
               mytd.style.backgroundColor = color;
             }         
           }
         }
         even =  ! even;
     }
   }
 }

function ajaxGet(url) {

url = (href_base + url).replace('/./', '/')
var req = false;

if (window.ActiveXObject) {
  try {
    // stupid hack because IE7 disables local Ajax with the native xmlhttprequest object
    // for security purposes. Yet ActiveX still works. Thanks, Microsoft. I hate you. Die.
    req = new ActiveXObject("MSXML2.XMLHTTP.3.0");
  } catch (e) {
    try {
      /* IE 6 and maybe 5, don't know, don't care */
      req = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        req = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {
        req = false;
      }
    }
  }
}

/* real browsers */
if (!req && window.XMLHttpRequest) {
  try {
    req = new XMLHttpRequest();
  } catch (e) {
    req = false;
  }
} 

if (req) {
  req.open('GET', url, false);
  req.send(null);
  return req.responseText;
} else {
  return "Ajax error";  
}

}

function addEvent(elm, evType, fn, useCapture) {

if (elm.addEventListener) {
  elm.addEventListener(evType, fn, useCapture);  
return true;
} else if (elm.attachEvent) {
var r = elm.attachEvent('on' + evType, fn);  
  return r;  
} else {
elm['on' + evType] = fn;
}

}

function insertIndices() {

pages = ["class", "file", "method"]
for (x in pages) { 
  $(pages[x]).innerHTML += ajaxGet('fr_' + pages[x] + '_index.html').replace(/(href=")/g, '$1' + href_base);
}
/* mouseoverify method links */
links = $('method').getElementsByTagName('a');
for (var x = 0; x < links.length; x++) {
  if (m = links[x].innerHTML.match(/(.*)\s\((.*)\)/)) {
    links[x].innerHTML = m[1] + '<br>';
    links[x].title = m[2];
  }
}
/* this is stupid */
$('class').style.display = "block";
$('file').style.display = "block";

/* has to be here because IE7 does not guarantee the onLoad callback order */
abbreviateIndicesInner(["class", "file"], 25, "a");
/* same, linkTitle() depends on the class link list */
linkTitle();

}

function abbreviateIndices() {

var ids = ["defined_in", "child_of", "includes", "requires", "method", "methods"];
abbreviateIndicesInner(ids, 25, 'a');
abbreviateIndicesInner(ids, 25, 'span');

}

function abbreviateIndicesInner(indices, amount, tag) {

for (var x = 0; x < indices.length; x++) { 
  var the_index = $(indices[x]);
  if (the_index) {
    links = the_index.getElementsByTagName(tag);
    for (var y = 0; y < links.length; y++) {
      var link = links[y];
      if (link.getElementsByTagName('span').length == 0 && link.getElementsByTagName('a').length == 0) {
        // avoid nesting
        link.innerHTML = link.innerHTML.replace(/<br>|\n/gi, '');
        link.title = link.innerHTML;
        link.innerHTML = abbreviate(link.innerHTML, amount) + '<br>';
      }
    }
  }
}

}

function linkTitle() {

/* grab the correct title element from the index */
var index_page = ajaxGet('index.html');
title_text = index_page.match(/<title>(.*)<\/title>/m)[1];
document.title = title_text + " - " + document.title;
var p = $('header').getElementsByTagName('p')[0]
if (p.innerHTML.match(/^\s*$/)) {
  p.innerHTML = title_text;
} else {
  p.innerHTML = title_text + ": " + p.innerHTML;
}

/* set the link properly */
title_link = index_page.match(/<a\s+href="(.*?)"/)[1];
var element = $('title');
var item_type = "";
var item_name = "";
if (m = element.innerHTML.match(/(Class:|Module:|File:)\s*(.*)/)) {
  item_type = m[1];
  item_name = m[2];
} else {
  item_name = element.innerHTML;
}
element.innerHTML = '<a href="' + href_base + title_link + '">' + item_type + " " + abbreviate(item_name, 45) + '</a>';
element.getElementsByTagName('a')[0].title = item_name

/* breadcrumb navigation */
items = item_name.split("::");
items_new = item_name.split("::");
file_links = $('class').getElementsByTagName('a');
for (var x = 0; x < items.length - 1; x++ ){
  var item = items[x];
  link = ("/classes/" + items.slice(0,x).join("/") + "/" + item + ".html").replace('//', '/');
  regex = new RegExp(RegExp.escape(link) + '$');
  for (var y = 0; y < file_links.length; y++) {
    if (file_links[y].href.match(regex)) {
       items_new[x] = '<a href="' + href_base + link + '">' + item + '</a>';
       break;
    }
  }  
}
$('item_name').innerHTML = item_type + ' ' + items_new.join(" :: ");

}

function abbreviate(s, size) {

while (s.length > size) {
  var old_s = s;
  s = s.replace(/\s|\n/mg, '');
  s = s.replace(/([A-Z])[a-z]+/m, '$1');
  if (!s || old_s == s) {
    return "..." + s.substring(s.length - size, s.length);
  }
}
return s;

}

function disableSubmit(event) {

var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
if (keyCode == 13) {
  return false;
} else {
  return true;
}

}

function filterList(id, s, event) {

/* some weak escaping */
s = s.replace(/[^\w\d\.\_\-\/\:\=\[\]\?\!]/g, '');
s = RegExp.escape(s);

var show_all = false;
if (s.match(/^\s*$/)) {
  show_all = true;
}

links = $(id).getElementsByTagName('a')
regex = new RegExp(s, 'i');

for (var x = 0; x < links.length; x++) {
  var link = links[x];
  if (show_all) {
    link.style.display = 'inline';
  } else {
     if (link.innerHTML.match(regex)) {        
       link.style.display = 'inline';
     } else {
       link.style.display = 'none';
     }
  }
}
return true;

}

RegExp.escape = function(text) {

if (!arguments.callee.sRE) {
  var specials = ['/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\\\'];
  arguments.callee.sRE = new RegExp(
    '(\\\\' + specials.join('|\\\\') + ')', 'g'
  );
}
return text.replace(arguments.callee.sRE, '\\\\$1');

}

function hacks() {

// show the spacer if necessary, 
divs = document.getElementsByTagName('div');
for(var x = 0; x < divs.length; x++) {
  if (divs[x].className && divs[x].className.match(/top/)) {
    document.getElementById('spacer').style.display = 'block';
  }
}
// remove extra colons from tables
tds = document.getElementsByTagName('td');
for(var x = 0; x < tds.length; x++) {
  str = tds[x].innerHTML
  if (str.charAt(str.length - 1) == ":") {
    tds[x].innerHTML = str.slice(0, str.length - 1)
  }
}

}

addEvent(window, ‘load’, insertIndices, false); addEvent(window, ‘load’, abbreviateIndices, false); addEvent(window, ‘load’, stripe, false); addEvent(window, ‘load’, highlightSymbols, false); addEvent(window, ‘load’, hacks, false);