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/* * Accordion 1.5 - jQuery menu widget * * Copyright (c) 2007 J÷rn Zaefferer, Frank Marcia * * http://bassistance.de/jquery-plugins/jquery-plugin-accordion/ * * Dual licensed under the MIT and GPL licenses: * http://www.opensource.org/licenses/mit-license.php * http://www.gnu.org/licenses/gpl.html * * Revision: $Id: jquery.accordion.js 2880 2007-08-24 21:44:37Z joern.zaefferer $ * */ /** * Make the selected elements Accordion widgets. * * Semantic requirements: * * If the structure of your container is flat with unique * tags for header and content elements, eg. a definition list * (dl > dt + dd), you don't have to specify any options at * all. * * If your structure uses the same elements for header and * content or uses some kind of nested structure, you have to * specify the header elements, eg. via class, see the second example. * * Use activate(Number) to change the active content programmatically. * * A change event is triggered everytime the accordion changes. Apart from * the event object, all arguments are jQuery objects. * Arguments: event, newHeader, oldHeader, newContent, oldContent * * @example jQuery('#nav').Accordion(); * @before <dl id="nav"> * <dt>Header 1</dt> * <dd>Content 1</dd> * <dt>Header 2</dt> * <dd>Content 2</dd> * </dl> * @desc Creates an Accordion from the given definition list * * @example jQuery('#nav').Accordion({ * header: '.title' * }); * @before <div id="nav"> * <div> * <div class="title">Header 1</div> * <div>Content 1</div> * </div> * <div> * <div class="title">Header 2</div> * <div>Content 2</div> * </div> * </div> * @desc Creates an Accordion from the given div structure * * @example jQuery('#nav').Accordion({ * header: '.head', * navigation: true * }); * @before <ul id="nav"> * <li> * <a class="head" href="books/">Books</a> * <ul> * <li><a href="books/fantasy/">Fantasy</a></li> * <li><a href="books/programming/">Programming</a></li> * </ul> * </li> * <li> * <a class="head" href="movies/">Movies</a> * <ul> * <li><a href="movies/fantasy/">Fantasy</a></li> * <li><a href="movies/programming/">Programming</a></li> * </ul> * </li> * </ul> * @after <ul id="nav"> * <li> * <a class="head" href="">Books</a> * <ul style="display: none"> * <li><a href="books/fantasy/">Fantasy</a></li> * <li><a href="books/programming/">Programming</a></li> * </ul> * </li> * <li> * <a class="head" href="">Movies</a> * <ul> * <li><a class="current" href="movies/fantasy/">Fantasy</a></li> * <li><a href="movies/programming/">Programming</a></li> * </ul> * </li> * </ul> * @desc Creates an Accordion from the given navigation list, activating those accordion parts * that match the current location.href. Assuming the user clicked on "Fantasy" in the "Movies" section, * the accordion displayed after loading the page with the "Movies" section open and the "Fantasy" link highlighted * with a class "current". * * @example jQuery('#accordion').Accordion().change(function(event, newHeader, oldHeader, newContent, oldContent) { * jQuery('#status').html(newHeader.text()); * }); * @desc Updates the element with id status with the text of the selected header every time the accordion changes * * @param Map options key/value pairs of optional settings. * @option String|Element|jQuery|Boolean|Number active Selector for the active element. Set to false to display none at start. Default: first child * @option String|Element|jQuery header Selector for the header element, eg. 'div.title', 'a.head'. Default: first child's tagname * @option String|Number speed * @option String selectedClass Class for active header elements. Default: 'selected' * @option Boolean alwaysOpen Whether there must be one content element open. Default: true * @option Boolean|String animated Choose your favorite animation, or disable them (set to false). In addition to the default, "bounceslide" and "easeslide" are supported (both require the easing plugin). Default: 'slide' * @option String event The event on which to trigger the accordion, eg. "mouseover". Default: "click" * @option Boolean navigation If set, looks for the anchor that matches location.href and activates it. Great for href-based pseudo-state-saving. Default: false * @option Boolean autoheight If set, the highest content part is used as height reference for all other parts. Provides more consistent animations. Default: false * * @type jQuery * @see activate(Number) * @name Accordion * @cat Plugins/Accordion */ /** * Activate a content part of the Accordion programmatically. * * The index can be a zero-indexed number to match the position of the header to close * or a string expression matching an element. Pass -1 to close all (only possible with alwaysOpen:false). * * @example jQuery('#accordion').activate(1); * @desc Activate the second content of the Accordion contained in <div id="accordion">. * * @example jQuery('#accordion').activate("a:first"); * @desc Activate the first element matching the given expression. * * @example jQuery('#nav').activate(false); * @desc Close all content parts of the accordion. * * @param String|Element|jQuery|Boolean|Number index An Integer specifying the zero-based index of the content to be * activated or an expression specifying the element, or an element/jQuery object, or a boolean false to close all. * * @type jQuery * @name activate * @cat Plugins/Accordion */ (function($) { $.Accordion = {}; $.extend($.Accordion, { defaults: { selectedClass: "selected", alwaysOpen: true, animated: 'slide', event: "click" }, Animations: { slide: function(settings, additions) { settings = $.extend({ easing: "swing", duration: 300 }, settings, additions); if ( !settings.toHide.size() ) { settings.toShow.animate({height: "show"}, { duration: settings.duration, easing: settings.easing, complete: settings.finished }); return; } var height = settings.toHide.height(); settings.toShow.css({ height: 0, overflow: 'hidden' }).show(); settings.toHide.filter(":hidden").each(settings.finished).end().filter(":visible").animate({height:"hide"},{ step: function(n){ settings.toShow.height(Math.ceil(height - ($.fn.stop ? n * height : n))); }, duration: settings.duration, easing: settings.easing, complete: settings.finished }); }, bounceslide: function(settings) { this.slide(settings, { easing: settings.down ? "bounceout" : "swing", duration: settings.down ? 1000 : 200 }); }, easeslide: function(settings) { this.slide(settings, { easing: "easeinout", duration: 700 }) } } }); $.fn.extend({ nextUntil: function(expr) { var match = []; // We need to figure out which elements to push onto the array this.each(function(){ // Traverse through the sibling nodes for( var i = this.nextSibling; i; i = i.nextSibling ) { // Make sure that we're only dealing with elements if ( i.nodeType != 1 ) continue; // If we find a match then we need to stop if ( $.filter( expr, [i] ).r.length ) break; // Otherwise, add it on to the stack match.push( i ); } }); return this.pushStack( match ); }, // the plugin method itself Accordion: function(settings) { if ( !this.length ) return this; // setup configuration settings = $.extend({}, $.Accordion.defaults, { // define context defaults header: $(':first-child', this)[0].tagName // take first childs tagName as header }, settings); if ( settings.navigation ) { var current = this.find("a").filter(function() { return this.href == location.href; }); if ( current.length ) { if ( current.filter(settings.header).length ) { settings.active = current; } else { settings.active = current.parent().parent().prev(); current.addClass("current"); } } } // calculate active if not specified, using the first header var container = this, headers = container.find(settings.header), active = findActive(settings.active), running = 0; if ( settings.autoheight ) { var maxHeight = 0; headers.nextUntil(settings.header).each(function() { maxHeight = Math.max(maxHeight, $(this).height()); }).height(maxHeight); } headers .not(active || "") .nextUntil(settings.header) .hide(); active.addClass(settings.selectedClass); function findActive(selector) { return selector != undefined ? typeof selector == "number" ? headers.eq(selector) : headers.not(headers.not(selector)) : selector === false ? $("<div>") : headers.eq(0) } function toggle(toShow, toHide, data, clickedActive, down) { var finished = function(cancel) { running = cancel ? 0 : --running; if ( running ) return; // trigger custom change event container.trigger("change", data); }; // count elements to animate running = toHide.size() == 0 ? toShow.size() : toHide.size(); if ( settings.animated ) { if ( !settings.alwaysOpen && clickedActive ) { toShow.slideToggle(settings.animated); finished(true); } else { $.Accordion.Animations[settings.animated]({ toShow: toShow, toHide: toHide, finished: finished, down: down }); } } else { if ( !settings.alwaysOpen && clickedActive ) { toShow.toggle(); } else { toHide.hide(); toShow.show(); } finished(true); } } function clickHandler(event) { // called only when using activate(false) to close all parts programmatically if ( !event.target && !settings.alwaysOpen ) { active.toggleClass(settings.selectedClass); var toHide = active.nextUntil(settings.header); var toShow = active = $([]); toggle( toShow, toHide ); return; } // get the click target var clicked = $(event.target); // due to the event delegation model, we have to check if one // of the parent elements is our actual header, and find that if ( clicked.parents(settings.header).length ) while ( !clicked.is(settings.header) ) clicked = clicked.parent(); var clickedActive = clicked[0] == active[0]; // if animations are still active, or the active header is the target, ignore click if(running || (settings.alwaysOpen && clickedActive) || !clicked.is(settings.header)) return; // switch classes active.toggleClass(settings.selectedClass); if ( !clickedActive ) { clicked.addClass(settings.selectedClass); } // find elements to show and hide var toShow = clicked.nextUntil(settings.header), toHide = active.nextUntil(settings.header), data = [clicked, active, toShow, toHide], down = headers.index( active[0] ) > headers.index( clicked[0] ); active = clickedActive ? $([]) : clicked; toggle( toShow, toHide, data, clickedActive, down ); return !toShow.length; }; function activateHandler(event, index) { // IE manages to call activateHandler on normal clicks if ( arguments.length == 1 ) return; // call clickHandler with custom event clickHandler({ target: findActive(index)[0] }); }; return container .bind(settings.event, clickHandler) .bind("activate", activateHandler); }, activate: function(index) { return this.trigger('activate', [index]); } }); })(jQuery);