mirror of
https://github.com/jquery/jquery-ui.git
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515 lines
14 KiB
JavaScript
515 lines
14 KiB
JavaScript
/*
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* jQuery UI Accordion @VERSION
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*
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* Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT (MIT-LICENSE.txt)
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* and GPL (GPL-LICENSE.txt) licenses.
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*
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* http://docs.jquery.com/UI/Accordion
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*
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* Depends:
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* ui.core.js
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*/
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(function($) {
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$.widget("ui.accordion", {
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_init: function() {
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var o = this.options, self = this;
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this.running = 0;
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// if the user set the alwaysOpen option on init
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// then we need to set the collapsible option
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// if they set both on init, collapsible will take priority
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if (o.collapsible == $.ui.accordion.defaults.collapsible &&
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o.alwaysOpen != $.ui.accordion.defaults.alwaysOpen) {
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o.collapsible = !o.alwaysOpen;
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}
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this.element.addClass("ui-accordion ui-widget ui-helper-reset");
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// in lack of child-selectors in CSS we need to mark top-LIs in a UL-accordion for some IE-fix
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if (this.element[0].nodeName == "UL") {
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this.element.children("li").addClass("ui-accordion-li-fix");
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}
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this.headers = this.element.find(o.header).addClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all")
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.bind("mouseenter.accordion", function(){ $(this).addClass('ui-state-hover'); })
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.bind("mouseleave.accordion", function(){ $(this).removeClass('ui-state-hover'); })
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.bind("focus.accordion", function(){ $(this).addClass('ui-state-focus'); })
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.bind("blur.accordion", function(){ $(this).removeClass('ui-state-focus'); });
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this.headers
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.next()
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.addClass("ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom");
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if ( o.navigation ) {
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var current = this.element.find("a").filter(o.navigationFilter);
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if ( current.length ) {
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var header = current.closest(".ui-accordion-header");
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if ( header.length ) {
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// anchor within header
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this.active = header;
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} else {
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// anchor within content
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this.active = current.closest(".ui-accordion-content").prev();
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}
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}
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}
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this.active = this._findActive(this.active || o.active).toggleClass("ui-state-default").toggleClass("ui-state-active").toggleClass("ui-corner-all").toggleClass("ui-corner-top");
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this.active.next().addClass('ui-accordion-content-active');
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//Append icon elements
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this._createIcons();
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// IE7-/Win - Extra vertical space in lists fixed
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if ($.browser.msie) {
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this.element.find('a').css('zoom', '1');
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}
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this.resize();
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//ARIA
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this.element.attr('role','tablist');
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this.headers
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.attr('role','tab')
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.bind('keydown', function(event) { return self._keydown(event); })
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.next()
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.attr('role','tabpanel');
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this.headers
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.not(this.active || "")
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.attr('aria-expanded','false')
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.attr("tabIndex", "-1")
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.next()
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.hide();
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// make sure at least one header is in the tab order
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if (!this.active.length) {
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this.headers.eq(0).attr('tabIndex','0');
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} else {
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this.active
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.attr('aria-expanded','true')
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.attr('tabIndex', '0');
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}
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// only need links in taborder for Safari
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if (!$.browser.safari)
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this.headers.find('a').attr('tabIndex','-1');
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if (o.event) {
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this.headers.bind((o.event) + ".accordion", function(event) {
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self._clickHandler.call(self, event, this);
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event.preventDefault();
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});
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}
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},
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_createIcons: function() {
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var o = this.options;
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if (o.icons) {
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$("<span/>").addClass("ui-icon " + o.icons.header).prependTo(this.headers);
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this.active.find(".ui-icon").toggleClass(o.icons.header).toggleClass(o.icons.headerSelected);
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this.element.addClass("ui-accordion-icons");
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}
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},
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_destroyIcons: function() {
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this.headers.children(".ui-icon").remove();
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this.element.removeClass("ui-accordion-icons");
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},
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destroy: function() {
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var o = this.options;
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this.element
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.removeClass("ui-accordion ui-widget ui-helper-reset")
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.removeAttr("role")
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.unbind('.accordion')
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.removeData('accordion');
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this.headers
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.unbind(".accordion")
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.removeClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-corner-top")
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.removeAttr("role").removeAttr("aria-expanded").removeAttr("tabindex");
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this.headers.find("a").removeAttr("tabindex");
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this._destroyIcons();
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var contents = this.headers.next().css("display", "").removeAttr("role").removeClass("ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content ui-accordion-content-active");
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if (o.autoHeight || o.fillHeight) {
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contents.css("height", "");
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}
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return this;
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},
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_setData: function(key, value) {
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// alwaysOpen is deprecated
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if(key == 'alwaysOpen'){ key = 'collapsible'; value = !value; }
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$.widget.prototype._setData.apply(this, arguments);
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if (key == "active") {
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this.activate(value);
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}
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if (key == "icons") {
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this._destroyIcons();
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if (value) {
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this._createIcons();
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}
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}
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},
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_keydown: function(event) {
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var o = this.options, keyCode = $.ui.keyCode;
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if (o.disabled || event.altKey || event.ctrlKey)
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return;
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var length = this.headers.length;
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var currentIndex = this.headers.index(event.target);
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var toFocus = false;
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switch(event.keyCode) {
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case keyCode.RIGHT:
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case keyCode.DOWN:
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toFocus = this.headers[(currentIndex + 1) % length];
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break;
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case keyCode.LEFT:
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case keyCode.UP:
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toFocus = this.headers[(currentIndex - 1 + length) % length];
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break;
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case keyCode.SPACE:
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case keyCode.ENTER:
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this._clickHandler({ target: event.target }, event.target);
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event.preventDefault();
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}
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if (toFocus) {
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$(event.target).attr('tabIndex','-1');
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$(toFocus).attr('tabIndex','0');
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toFocus.focus();
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return false;
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}
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return true;
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},
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resize: function() {
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var o = this.options, maxHeight;
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if (o.fillSpace) {
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if($.browser.msie) { var defOverflow = this.element.parent().css('overflow'); this.element.parent().css('overflow', 'hidden'); }
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maxHeight = this.element.parent().height();
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if($.browser.msie) { this.element.parent().css('overflow', defOverflow); }
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this.headers.each(function() {
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maxHeight -= $(this).outerHeight(true);
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});
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this.headers.next().each(function() {
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$(this).height(Math.max(0, maxHeight - $(this).innerHeight() + $(this).height()));
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}).css('overflow', 'auto');
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} else if ( o.autoHeight ) {
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maxHeight = 0;
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this.headers.next().each(function() {
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maxHeight = Math.max(maxHeight, $(this).height());
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}).height(maxHeight);
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}
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return this;
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},
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activate: function(index) {
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this.options.active = index;
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// call clickHandler with custom event
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var active = this._findActive(index)[0];
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this._clickHandler({ target: active }, active);
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return this;
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},
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_findActive: function(selector) {
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return selector
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? typeof selector == "number"
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? this.headers.filter(":eq(" + selector + ")")
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: this.headers.not(this.headers.not(selector))
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: selector === false
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? $([])
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: this.headers.filter(":eq(0)");
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},
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_clickHandler: function(event, target) {
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var o = this.options;
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if (o.disabled) { return; }
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// called only when using activate(false) to close all parts programmatically
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if (!event.target && o.collapsible) {
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this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all")
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.find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
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this.active.next().addClass('ui-accordion-content-active');
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var toHide = this.active.next(),
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data = {
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options: o,
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newHeader: $([]),
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oldHeader: o.active,
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newContent: $([]),
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oldContent: toHide
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},
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toShow = (this.active = $([]));
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this._toggle(toShow, toHide, data);
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return;
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}
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// get the click target
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var clicked = $(event.currentTarget || target);
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var clickedIsActive = clicked[0] == this.active[0];
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o.active = $('.ui-accordion-header', this.element).index(clicked);
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// if animations are still active, or the active header is the target, ignore click
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if (this.running || (!o.collapsible && clickedIsActive)) {
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return;
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}
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// switch classes
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this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all")
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.find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
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if (!clickedIsActive) {
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clicked.removeClass("ui-state-default ui-corner-all").addClass("ui-state-active ui-corner-top")
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.find(".ui-icon").removeClass(o.icons.header).addClass(o.icons.headerSelected);
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clicked.next().addClass('ui-accordion-content-active');
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}
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// find elements to show and hide
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var toShow = clicked.next(),
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toHide = this.active.next(),
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data = {
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options: o,
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newHeader: clickedIsActive && o.collapsible ? $([]) : clicked,
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oldHeader: this.active,
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newContent: clickedIsActive && o.collapsible ? $([]) : toShow.find('> *'),
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oldContent: toHide.find('> *')
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},
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down = this.headers.index( this.active[0] ) > this.headers.index( clicked[0] );
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this.active = clickedIsActive ? $([]) : clicked;
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this._toggle(toShow, toHide, data, clickedIsActive, down);
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return;
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},
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_toggle: function(toShow, toHide, data, clickedIsActive, down) {
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var o = this.options, self = this;
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this.toShow = toShow;
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this.toHide = toHide;
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this.data = data;
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var complete = function() { if(!self) return; return self._completed.apply(self, arguments); };
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// trigger changestart event
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this._trigger("changestart", null, this.data);
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// count elements to animate
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this.running = toHide.size() === 0 ? toShow.size() : toHide.size();
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if (o.animated) {
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var animOptions = {};
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if ( o.collapsible && clickedIsActive ) {
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animOptions = {
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toShow: $([]),
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toHide: toHide,
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complete: complete,
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down: down,
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autoHeight: o.autoHeight || o.fillSpace
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};
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} else {
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animOptions = {
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toShow: toShow,
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toHide: toHide,
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complete: complete,
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down: down,
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autoHeight: o.autoHeight || o.fillSpace
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};
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}
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if (!o.proxied) {
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o.proxied = o.animated;
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}
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if (!o.proxiedDuration) {
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o.proxiedDuration = o.duration;
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}
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o.animated = $.isFunction(o.proxied) ?
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o.proxied(animOptions) : o.proxied;
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o.duration = $.isFunction(o.proxiedDuration) ?
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o.proxiedDuration(animOptions) : o.proxiedDuration;
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var animations = $.ui.accordion.animations,
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duration = o.duration,
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easing = o.animated;
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if (easing && !animations[easing] && !$.easing[easing]) {
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easing = 'slide';
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}
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if (!animations[easing]) {
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animations[easing] = function(options) {
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this.slide(options, {
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easing: easing,
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duration: duration || 700
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});
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};
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}
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animations[easing](animOptions);
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} else {
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if (o.collapsible && clickedIsActive) {
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toShow.toggle();
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} else {
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toHide.hide();
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toShow.show();
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}
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complete(true);
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}
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toHide.prev().attr('aria-expanded','false').attr("tabIndex", "-1").blur();
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toShow.prev().attr('aria-expanded','true').attr("tabIndex", "0").focus();
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},
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_completed: function(cancel) {
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var o = this.options;
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this.running = cancel ? 0 : --this.running;
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if (this.running) return;
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if (o.clearStyle) {
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this.toShow.add(this.toHide).css({
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height: "",
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overflow: ""
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});
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}
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// other classes are removed before the animation; this one needs to stay until completed
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this.toHide.removeClass("ui-accordion-content-active");
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this._trigger('change', null, this.data);
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}
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});
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$.extend($.ui.accordion, {
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version: "@VERSION",
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defaults: {
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active: null,
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alwaysOpen: true, //deprecated, use collapsible
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animated: 'slide',
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autoHeight: true,
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clearStyle: false,
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collapsible: false,
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event: "click",
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fillSpace: false,
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header: "> li > :first-child,> :not(li):even",
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icons: {
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header: "ui-icon-triangle-1-e",
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headerSelected: "ui-icon-triangle-1-s"
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},
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navigation: false,
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navigationFilter: function() {
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return this.href.toLowerCase() == location.href.toLowerCase();
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}
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},
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animations: {
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slide: function(options, additions) {
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options = $.extend({
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easing: "swing",
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duration: 300
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}, options, additions);
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if ( !options.toHide.size() ) {
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options.toShow.animate({height: "show"}, options);
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return;
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}
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if ( !options.toShow.size() ) {
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options.toHide.animate({height: "hide"}, options);
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return;
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}
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var overflow = options.toShow.css('overflow'),
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percentDone,
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showProps = {},
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hideProps = {},
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fxAttrs = [ "height", "paddingTop", "paddingBottom" ],
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originalWidth;
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// fix width before calculating height of hidden element
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var s = options.toShow;
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originalWidth = s[0].style.width;
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s.width( parseInt(s.parent().width(),10) - parseInt(s.css("paddingLeft"),10) - parseInt(s.css("paddingRight"),10) - (parseInt(s.css("borderLeftWidth"),10) || 0) - (parseInt(s.css("borderRightWidth"),10) || 0) );
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$.each(fxAttrs, function(i, prop) {
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hideProps[prop] = 'hide';
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var parts = ('' + $.css(options.toShow[0], prop)).match(/^([\d+-.]+)(.*)$/);
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showProps[prop] = {
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value: parts[1],
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unit: parts[2] || 'px'
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};
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});
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options.toShow.css({ height: 0, overflow: 'hidden' }).show();
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options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate(hideProps,{
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step: function(now, settings) {
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// only calculate the percent when animating height
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// IE gets very inconsistent results when animating elements
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// with small values, which is common for padding
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if (settings.prop == 'height') {
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percentDone = (settings.now - settings.start) / (settings.end - settings.start);
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}
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options.toShow[0].style[settings.prop] =
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(percentDone * showProps[settings.prop].value) + showProps[settings.prop].unit;
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},
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duration: options.duration,
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easing: options.easing,
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complete: function() {
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if ( !options.autoHeight ) {
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options.toShow.css("height", "");
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}
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options.toShow.css("width", originalWidth);
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options.toShow.css({overflow: overflow});
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options.complete();
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}
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});
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},
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bounceslide: function(options) {
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this.slide(options, {
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easing: options.down ? "easeOutBounce" : "swing",
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duration: options.down ? 1000 : 200
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});
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}
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}
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});
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})(jQuery);
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