MediaWiki:Common.js

/* 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);
    };
})();

/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *               [[Wikipedia:NavFrame]].
 *  Maintainers: [[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 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 );

/** Dynamic Navigation Bars (experimental) *************************************
 *
 *  Description: See [[Wikipedia:NavFrame]].
 *  Maintainers: UNMAINTAINED
 */

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

// 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 isCollapsed = hasClass( NavFrame, "collapsed" );
            /*
             * Check if any children are already hidden.  This loop is here for backwards compatibility:
             * the old way of making NavFrames start out collapsed was to manually add style="display:none"
             * to all the NavPic/NavContent elements.  Since this was bad for accessibility (no way to make
             * the content visible without JavaScript support), the new recommended way is to add the class
             * "collapsed" to the NavFrame itself, just like with collapsible tables.
             */
            for (var NavChild = NavFrame.firstChild; NavChild != null && !isCollapsed; NavChild = NavChild.nextSibling) {
                if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, 'NavContent' ) ) {
                    if ( NavChild.style.display == 'none' ) {
                        isCollapsed = true;
                    }
                }
            }
            if (isCollapsed) {
                for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
                    if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, 'NavContent' ) ) {
                        NavChild.style.display = 'none';
                    }
                }
            }
            var NavToggleText = document.createTextNode(isCollapsed ? NavigationBarShow : 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);
        }
    }
}

addOnloadHook( createNavigationBarToggleButton );


//

(function($) {
 
	// CONFIG
	var config = window.ShowHideConfig = $.extend(true, {
		autoCollapse: 2,
		userLang: true,
		brackets: '[]',
		// English
		en: {
			show: "show",
			hide: "hide",
			showAll: "show all",
			hideAll: "hide all"
		}
		// Make a post on the talkpage if you have i18n updates
	}, window.ShowHideConfig || {});
 
	// i18n function
	function msg(name) {
		if ( config.userLang && wgUserLanguage in config && name in config[wgUserLanguage] )
			return config[wgUserLanguage][name];
		if ( wgContentLanguage in config && name in config[wgContentLanguage] )
			return config[wgContentLanguage][name];
		return config.en[name];
	}
 
	// common
	$.fn.onLink = function(fn) {
		return this.bind('click keypress', function(e) {
			if ( e.type === 'click' || ( e.type === 'keypress' && ( e.keyCode === 13 || e.charCode === 32 ) ) )
				fn.call(this, e);
		});
	};
 
	/** Collapsible tables using jQuery
	 *
	 *  Description: Allows tables to be collapsed, showing only the header.
	 */
	function collapseTable( node, state ) {
		var $table = $(node);
		var $button = $table.find("tr:first > th:first .collapseLink");
 
		if (!$table.length || !$button.length) {
			return false;
		}
 
		if ( typeof state === 'boolean' )
			$table.toggleClass('collapsed', !state);
		else
			$table.toggleClass('collapsed');
 
		var hidden = $table.hasClass('collapsed');
		$table.find('> * > tr:not(:first):not(.nocollapse)')[hidden?"hide":"show"]();
		$button.text( msg( hidden ? "show" : "hide" ) );
	}
 
	function createCollapseButtons() {
		var NavigationBoxes = [];
		$("table.collapsible").each(function() {
			NavigationBoxes.push(this);
			var $buttonLink = $('<span tabIndex=0 class=collapseLink />').text( msg("hide") )
				.onLink(function(e) { collapseTable( $(this).closest('table') ); });
			var $button = $("<span class=collapseButton />").css({
				float: "right",
				textAlign: "right",
				fontWeight: "normal",
				width: "6em",
				marginLeft: "-100%"
			});
			$button.append( document.createTextNode(config.brackets.substr(0, config.brackets.length/2)), $buttonLink, config.brackets.substr(config.brackets.length/2) );
 
			var $header = $(this).find('tr:first > th:first').prepend($button);
		});
 
		// if more Navigation Bars found than Default: hide all
		if ($(NavigationBoxes).filter('.autocollapse').length >= config.autoCollapse)
			$(NavigationBoxes).filter('.autocollapse').each(function() { collapseTable( this, false ); });
		else
			$(NavigationBoxes).filter('.collapsed').each(function() { collapseTable( this, false ); });
	}
 
	$( createCollapseButtons );
 
	/** Dynamic Navigation Bars with jQuery
	 *
	 *  Base Description: See Wikipedia:Wikipedia:NavFrame.
	 */
 
	// shows and hides content and picture (if available) of navigation bars
	function toggleNavigationBar( node ) {
		var $navFrame = $(node);
		var $navToggle = $navFrame.find(".NavHead:first .collapseLink");
 
		if (!$navFrame.length || !$navToggle.length) {
			return false;
		}
 
		$navFrame.toggleClass('NavVisible');
		$navFrame.find('.NavPic, .NavContent').not($navFrame.find('.NavFrame .NavPic, .NavFrame .NavContent')).slideToggle();
		$navToggle.text( msg( $navFrame.hasClass('NavVisible') ? "hide" : "show" ) );
	}
 
	// adds show/hide-button to navigation bars
	function createNavigationBarToggleButton() {
		var NavFrames = $('.NavFrame').addClass('NavVisible').each(function() {
			var $navHead = $(this).find('.NavHead:first');
			$navHead.filter('legend').append(' - ');
			var $buttonLink = $('<span tabIndex=0 class=collapseLink />').text( msg("hide") )
				.onLink(function(e) { toggleNavigationBar( $(this).closest('.NavFrame') ); });
			var $button = $('<span class="NavToggle collapseButton" />')
 
			$button.append( document.createTextNode(config.brackets.substr(0, config.brackets.length/2)), $buttonLink, document.createTextNode(config.brackets.substr(config.brackets.length/2)) );
			$navHead.prepend( $button );
 
			});
		// if more Navigation Bars found than Default: hide all
		if (NavFrames.length >= config.autoCollapse)
			NavFrames.not('.noautocollapse').each(function() { toggleNavigationBar(this); });
		else
			NavFrames.filter('.collapsed').each(function() { toggleNavigationBar(this); });
	}
 
	$( createNavigationBarToggleButton );
 
	$(function() {
		$('.NavGlobal').each(function() {
			$('<span class=NavGlobalShow />').append(
				document.createTextNode('['),
				$('<span tabIndex=0 class=collapseLink />').text( msg("showAll") ).onLink(function(e) {
					$('.NavFrame').each(function() { if ( !$(this).hasClass('NavVisible') ) toggleNavigationBar(this); });
				}),
				']'
			).appendTo(this);
			$(this).append(' ');
			$('<span class=NavGlobalHide />').append(
				document.createTextNode('['),
				$('<span tabIndex=0 class=collapseLink />').text( msg("hideAll") ).onLink(function(e) {
					$('.NavFrame').each(function() { if ( $(this).hasClass('NavVisible') ) toggleNavigationBar(this); });
				}),
				']'
			).appendTo(this);
		});
	});
 
})(jQuery);