MediaWiki:AuJavascript

/* Test if an element has a certain class **************************************

 *
 * Description: Uses regular expressions and caching for better performance.
 * Maintainers: User:Mike Dillon, User:R. Koot, User:SG
 */

var hasClass = (function () {
    var reCache = {};
    return function (element, className) {
        return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);
    };
})();

/** Internet Explorer bug fix **************************************************
 *
 *  Description: UNDOCUMENTED
 *  Maintainers: User:Tom-?
 */

if (window.showModalDialog && document.compatMode && document.compatMode == "CSS1Compat")
{
  var oldWidth;
  var docEl = document.documentElement;

  function fixIEScroll()
  {
    if (!oldWidth || docEl.clientWidth > oldWidth)
      doFixIEScroll();
    else
      setTimeout(doFixIEScroll, 1);

    oldWidth = docEl.clientWidth;
  }

  function doFixIEScroll() {
    docEl.style.overflowX = (docEl.scrollWidth - docEl.clientWidth = autoCollapse && hasClass( NavigationBoxes[i], "autocollapse" ) ) ) {
            collapseTable( i );
        }
    }
}

addOnloadHook( createCollapseButtons );

/** Dynamic Navigation Bars (experimental) *************************************
 *
 *  Description: See  http://en.wikipedia.org/wiki/WP:NAVFRAME
 *  Maintainers: UNMAINTAINED
 */

 // set up the words in your language
 var NavigationBarHide = '[' + collapseCaption + ']';
 var NavigationBarShow = '[' + expandCaption + ']';

 // set up max count of Navigation Bars on page,
 // if there are more, all will be hidden
 // NavigationBarShowDefault = 0; // all bars will be hidden
 // NavigationBarShowDefault = 1; // on pages with more than 1 bar all bars will be hidden
 var NavigationBarShowDefault = autoCollapse;

 // shows and hides content and picture (if available) of navigation bars
 // Parameters:
 //     indexNavigationBar: the index of navigation bar to be toggled
 function toggleNavigationBar(indexNavigationBar)
 {
    var NavToggle = document.getElementById("NavToggle" + indexNavigationBar);
    var NavFrame = document.getElementById("NavFrame" + indexNavigationBar);

    if (!NavFrame || !NavToggle) {
        return false;
    }

    // if shown now
    if (NavToggle.firstChild.data == NavigationBarHide) {
        for (
                var NavChild = NavFrame.firstChild;
                NavChild != null;
                NavChild = NavChild.nextSibling
            ) {
            if ( hasClass( NavChild, 'NavPic' ) ) {
                NavChild.style.display = 'none';
            }
            if ( hasClass( NavChild, 'NavContent') ) {
                NavChild.style.display = 'none';
            }
        }
    NavToggle.firstChild.data = NavigationBarShow;

    // if hidden now
    } else if (NavToggle.firstChild.data == NavigationBarShow) {
        for (
                var NavChild = NavFrame.firstChild;
                NavChild != null;
                NavChild = NavChild.nextSibling
            ) {
            if (hasClass(NavChild, 'NavPic')) {
                NavChild.style.display = 'block';
            }
            if (hasClass(NavChild, 'NavContent')) {
                NavChild.style.display = 'block';
            }
        }
    NavToggle.firstChild.data = NavigationBarHide;
    }
 }

 // adds show/hide-button to navigation bars
 function createNavigationBarToggleButton()
 {
    var indexNavigationBar = 0;
    // iterate over all -elements
    var divs = document.getElementsByTagName("div");
    for(
            var i=0;
            NavFrame = divs[i];
            i++
        ) {
        // if found a navigation bar
        if (hasClass(NavFrame, "NavFrame")) {

            indexNavigationBar++;
            var NavToggle = document.createElement("a");
            NavToggle.className = 'NavToggle';
            NavToggle.setAttribute('id', 'NavToggle' + indexNavigationBar);
            NavToggle.setAttribute('href', 'javascript:toggleNavigationBar(' + indexNavigationBar + ');');

            var NavToggleText = document.createTextNode(NavigationBarHide);
            NavToggle.appendChild(NavToggleText);
            // Find the NavHead and attach the toggle link (Must be this complicated because Moz's firstChild handling is borked)
            for(
              var j=0;
              j