Difference between revisions of "MediaWiki:Common.js"

Revision as of 21:34, 1 March 2010

/* Any JavaScript here will be loaded for all users on every page load. */

function includePage( name )
{
 document.write('<script type="text/javascript" src="' + wgScript + '?title='
  + name 
  + '&action=raw&ctype=text/javascript"><\/script>' 
 );
}
/* End of includePage */
 
 
/* Including extra .js pages */ 
 
// switches for scripts
// TODO: migrate to JSConfig
// var load_extratabs = true;
var load_edittools = true;
 
// extra drop down menu on editing for adding special characters
includePage( 'MediaWiki:Edittools.js' );

/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *               http://www.mediawiki.org/wiki/Manual:Collapsible_tables.
 *  Maintainers: [[**MAINTAINERS**]]
 */
var autoCollapse = 2;
var collapseCaption = 'hide';
var expandCaption = 'show';
 
function collapseTable( tableIndex ) {
	var Button = document.getElementById( 'collapseButton' + tableIndex );
	var Table = document.getElementById( 'collapsibleTable' + tableIndex );
 
	if ( !Table || !Button ) {
		return false;
	}
 
	var Rows = Table.rows;
 
	if ( Button.firstChild.data == collapseCaption ) {
		for ( var i = 1; i < Rows.length; i++ ) {
			Rows[i].style.display = 'none';
		}
		Button.firstChild.data = expandCaption;
	} else {
		for ( var i = 1; i < Rows.length; i++ ) {
			Rows[i].style.display = Rows[0].style.display;
		}
		Button.firstChild.data = collapseCaption;
	}
}
 
function createCollapseButtons() {
	var tableIndex = 0;
	var NavigationBoxes = new Object();
	var Tables = document.getElementsByTagName( 'table' );
 
	for ( var i = 0; i < Tables.length; i++ ) {
		if ( hasClass( Tables[i], 'collapsible' ) ) {
			/* only add button and increment count if there is a header row to work with */
			var HeaderRow = Tables[i].getElementsByTagName( 'tr' )[0];
			if( !HeaderRow ) continue;
			var Header = HeaderRow.getElementsByTagName( 'th' )[0];
			if( !Header ) continue;
 
			NavigationBoxes[tableIndex] = Tables[i];
			Tables[i].setAttribute( 'id', 'collapsibleTable' + tableIndex );
 
			var Button     = document.createElement( 'span' );
			var ButtonLink = document.createElement( 'a' );
			var ButtonText = document.createTextNode( collapseCaption );
 
			Button.className = 'collapseButton'; // Styles are declared in MediaWiki:Common.css
 
			ButtonLink.style.color = Header.style.color;
			ButtonLink.setAttribute( 'id', 'collapseButton' + tableIndex );
			ButtonLink.setAttribute( 'href', "javascript:collapseTable(" + tableIndex + ");" );
			ButtonLink.appendChild( ButtonText );
 
			Button.appendChild( document.createTextNode( '[' ) );
			Button.appendChild( ButtonLink );
			Button.appendChild( document.createTextNode( ']' ) );
 
			Header.insertBefore( Button, Header.childNodes[0] );
			tableIndex++;
		}
	}
 
	for ( var i = 0;  i < tableIndex; i++ ) {
		if ( hasClass( NavigationBoxes[i], 'collapsed' ) || ( tableIndex >= autoCollapse && hasClass( NavigationBoxes[i], 'autocollapse' ) ) ) {
			collapseTable( i );
		}
	}
}
 
addOnloadHook( createCollapseButtons );
 
/** 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);
	};
})();


 /** Dynamic Navigation Bars (experimental) *************************************
  *
  *  Description: See [[Wikipedia: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 < div >-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 < NavFrame.childNodes.length; 
               j++
             ) {
               if (hasClass(NavFrame.childNodes[j], "NavHead")) {
                 NavFrame.childNodes[j].appendChild(NavToggle);
               }
             }
             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);
         }
     }
   
  } 
  addOnloadHook( createNavigationBarToggleButton );