MediaWiki:Common.js: Unterschied zwischen den Versionen

Version vom 2. Oktober 2008, 18:31 Uhr

/* Folgendes Script wird in jedem Skin geladen */


//TOGGLE
//Austin Che http://openwetware.org/wiki/User:Austin
// indexed array of toggler ids to array of associated toggle operations
// each operation is a two element array, the first being the type, the second a class name or array of elements
// operation types are strings like "_reset" or "" for the default toggle operation
var togglers = new Array();     
var allClasses = new Object(); // associative map of class names to page elements

function toggler(id)
{
    var toBeToggled = togglers[id];
    if (!toBeToggled)
        return;

    // if some element is in list more than once, it will be toggled multiple times
    for (var i = 0; i < toBeToggled.length; i++)
    {
        // get array of elements to operate on
        var toggles = toBeToggled[i][1];
        if (typeof(toggles) == "string")
        {
            if (toggles.charAt(0) == '-')
            {
                // treat as an element ID, not as class
                toggles = document.getElementById(toggles.substring(1));
                if (toggles)
                    toggles = new Array(toggles);
            }
            else
                toggles = allClasses[toggles];
        }
        if (!toggles || !toggles.length)
            continue;

        var op = toBeToggled[i][0]; // what the operation will be

        switch (op)
        {
            case "_reset":
                for (var j in toggles)
                    toggles[j].style.display = toggles[j]._toggle_original_display;
                break;
            case "_show":
                for (var j in toggles)
                    toggles[j].style.display = '';
                break;
            case "_hide":
                for (var j in toggles)
                    toggles[j].style.display = 'none';
                break;
            case "":
            default:
                // Toggle
                for (var j in toggles)
                    toggles[j].style.display = ((toggles[j].style.display == 'none') ? '' : 'none');
                break;
        }
    }
}

function createTogglerLink(toggler, id)
{
    var toggle = document.createElement("a");
    toggle.className = 'toggler-link';
    toggle.setAttribute('id', 'toggler' + id);
    toggle.setAttribute('href', 'javascript:toggler("' + id + '");');
    var child = toggler.firstChild;
    toggler.removeChild(child);
    toggle.appendChild(child);
    toggler.insertBefore(toggle, toggler.firstChild);
}

function toggleInit()
{
    var togglerElems = new Array();
    var toggleGroup = new Array();
        
    // make list of all document classes
    var elems = document.getElementsByTagName("*");
    var numelems = elems.length;
    for (var i = 0; i < elems.length; i++)
    {
        var elem = elems[i];
        if (!elem.className)
            continue;

        elem._toggle_original_display = elem.style.display;
        var togglerID = -1;
        var elemClasses = elem.className.split(' '); // get list of classes
        for (var j = 0; j < elemClasses.length; j++)
        {
            var elemClass = elemClasses[j];
            if (! allClasses[elemClass])
                allClasses[elemClass] = new Array();
            allClasses[elemClass].push(elem);

            // all the special classes begin with _toggle
            if (elemClass.substring(0, 7) != "_toggle")
                continue;

            if (elemClass == "_togglegroup")
                toggleGroup = new Array();
            else if (elemClass == "_toggle")
                toggleGroup.push(elem);
            else if (elemClass.substring(0, 12) == "_toggle_init")
            {
                // set initial value for display (ignore the original CSS set value)
                // understands _toggle_initshow and _toggle_inithide
                var disp = elemClass.substring(12);
                if (disp == "show")
                    elem.style.display = '';
                else if (disp == "hide")
                    elem.style.display = 'none';
                elem._toggle_original_display = disp;
            }
            else if (elemClass.substring(0, 8) == "_toggler")
            {
                if (togglerID == -1)
                {
                    togglerID = togglers.length;
                    togglers[togglerID] = new Array();
                    togglerElems[togglerID] = elem;
                }

                // all classes are of form _toggler_op-CLASS
                // figure out what class we're toggling
                // if none is specified, then we use the current toggle group
                var toBeToggled;
                var hyphen = elemClass.indexOf('-');
                if (hyphen != -1)
                    toBeToggled = elemClass.substring(hyphen+1);
                else
                {
                    toBeToggled = toggleGroup;
                    hyphen = elemClass.length;
                }

                var op = elemClass.substring(8, hyphen);
                togglers[togglerID].push(new Array(op, toBeToggled));
            }
        }
    }

    // add javascript links to all toggler elements
    for (var i = 0; i < togglerElems.length; i++)
        createTogglerLink(togglerElems[i], i);
}

addOnloadHook(toggleInit);

//*** Dynamic Navigation Bars
 
// set up the words in your language
var NavigationBarHide = 'Einklappen';
var NavigationBarShow = 'Ausklappen';
 
// 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
if (typeof NavigationBarShowDefault == 'undefined' ) {
    var NavigationBarShowDefault = 1;
}
 
// adds show/hide-button to navigation bars
addOnloadHook(function() {
	// 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 (NavChild.className == 'NavPic') {
				   NavChild.style.display = 'none';
			   }
			   if (NavChild.className == 'NavContent') {
				   NavChild.style.display = 'none';
			   }
			   if (NavChild.className == 'NavToggle') {
				   NavChild.firstChild.data = NavigationBarShow;
			   }
		   }
 
	   // if hidden now
	   } else if (NavToggle.firstChild.data == NavigationBarShow) {
		   for (
				   var NavChild = NavFrame.firstChild;
				   NavChild != null;
				   NavChild = NavChild.nextSibling
			   ) {
			   if (NavChild.className == 'NavPic') {
				   NavChild.style.display = 'block';
			   }
			   if (NavChild.className == 'NavContent') {
				   NavChild.style.display = 'block';
			   }
			   if (NavChild.className == 'NavToggle') {
				   NavChild.firstChild.data = NavigationBarHide;
			   }
		   }
	   }
	}
 
	function toggleNavigationBarFunction(indexNavigationBar) {
		return function() {
			toggleNavigationBar(indexNavigationBar);
			return false;
		};
	}
 
   var indexNavigationBar = 0;
   // iterate over all < div >-elements
   var divs = document.getElementsByTagName("div");
   for (var i=0;  i<divs.length; i++) {
       var NavFrame = divs[i];
       // if found a navigation bar
       if (NavFrame.className == "NavFrame") {
 
           indexNavigationBar++;
           var NavToggle = document.createElement("a");
           NavToggle.className = 'NavToggle';
           NavToggle.setAttribute('id', 'NavToggle' + indexNavigationBar);
           NavToggle.setAttribute('href', '#');
		   NavToggle.onclick = toggleNavigationBarFunction(indexNavigationBar);
 
           var NavToggleText = document.createTextNode(NavigationBarHide);
           NavToggle.appendChild(NavToggleText);
 
           // add NavToggle-Button as first div-element
           // in < div class="NavFrame" >
           NavFrame.insertBefore(
               NavToggle,
               NavFrame.firstChild
           );
           NavFrame.setAttribute('id', 'NavFrame' + indexNavigationBar);
       }
   }
   // if more Navigation Bars found than Default: hide all
   if (NavigationBarShowDefault < indexNavigationBar) {
       for(
               var i=1;
               i<=indexNavigationBar;
               i++
       ) {
           toggleNavigationBar(i);
       }
   }
});