MediaWiki:Common.js

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

/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *                         http://www.mediawiki.org/wiki/Manual:Collapsible_tables.
 *  Maintainers: [[en:User:R. Koot]]
 */
 
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 );
                } else if ( hasClass( NavigationBoxes[i], 'innercollapse' ) ) {
                        var element = NavigationBoxes[i];
                        while ( element = element.parentNode ) {
                                if ( hasClass( element, 'outercollapse' ) ) {
                                        collapseTable( i );
                                        break;
                                }
                        }
                }
        }
}
 
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 );
        };
})();

// install [[Wikipedia:User:Cacycle/wikEd]] in-browser text editor
//importScriptURI('http://en.wikipedia.org/w/index.php?title=User:Cacycle/wikEd.js'
//+ '&action=raw&ctype=text/javascript');


function addAlternatingRowColors() {
	var infoboxes = getElementsByClass('infobox', document.getElementById('content'));
 
	if( infoboxes.length == 0 )
		return;
 
	for( var k = 0; k < infoboxes.length; k++ ) {
		var infobox = infoboxes[k];
 
		var rows = infobox.getElementsByTagName('tr');
		var changeColor = false;
 
		for( var i = 0; i < rows.length; i++ ) {
			if(rows[i].className.indexOf('infoboxstopalt') != -1)
			break;
 
			var ths = rows[i].getElementsByTagName('th');
 
			if( ths.length > 0 ) {
				continue;
			}
 
			if(changeColor)
				rows[i].style.backgroundColor = '#C0C0C0';
			changeColor = !changeColor;
		}
	}
}

function getElementsByClass(searchClass, node, tag)
{
	var classElements = new Array();
 
	if(node == null)
		node = document;
 
	if(tag == null)
		tag = '*';
 
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var tester = new ClassTester(searchClass);
 
	for(i = 0, j = 0; i < elsLen; i++)
	{
		if(tester.isMatch(els[i]))
		{
			classElements[j] = els[i];
			j++;
		}
	}
 
	return classElements;
}