/*
* jQuery UI Accordion 1.7.1
*
* Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Accordion
*
* Depends:
* ui.core.js
*/
(function($) {
$.widget("ui.accordion", {
_init: function() {
var o = this.options, self = this;
this.running = 0;
// if the user set the alwaysOpen option on init
// then we need to set the collapsible option
// if they set both on init, collapsible will take priority
if (o.collapsible == $.ui.accordion.defaults.collapsible &&
o.alwaysOpen != $.ui.accordion.defaults.alwaysOpen) {
o.collapsible = !o.alwaysOpen;
}
if ( o.navigation ) {
var current = this.element.find("a").filter(o.navigationFilter);
if ( current.length ) {
if ( current.filter(o.header).length ) {
this.active = current;
} else {
this.active = current.parent().parent().prev();
current.addClass("ui-accordion-content-active");
}
}
}
this.element.addClass("ui-accordion ui-widget ui-helper-reset");
// in lack of child-selectors in CSS we need to mark top-LIs in a UL-accordion for some IE-fix
if (this.element[0].nodeName == "UL") {
this.element.children("li").addClass("ui-accordion-li-fix");
}
this.headers = this.element.find(o.header).addClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all")
.bind("mouseenter.accordion", function(){ $(this).addClass('ui-state-hover'); })
.bind("mouseleave.accordion", function(){ $(this).removeClass('ui-state-hover'); })
.bind("focus.accordion", function(){ $(this).addClass('ui-state-focus'); })
.bind("blur.accordion", function(){ $(this).removeClass('ui-state-focus'); });
this.headers
.next()
.addClass("ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom");
this.active = this._findActive(this.active || o.active).toggleClass("ui-state-default").toggleClass("ui-state-active").toggleClass("ui-corner-all").toggleClass("ui-corner-top");
this.active.next().addClass('ui-accordion-content-active');
//Append icon elements
$("<span/>").addClass("ui-icon " + o.icons.header).prependTo(this.headers);
this.active.find(".ui-icon").toggleClass(o.icons.header).toggleClass(o.icons.headerSelected);
// IE7-/Win - Extra vertical space in lists fixed
if ($.browser.msie) {
this.element.find('a').css('zoom', '1');
}
this.resize();
//ARIA
this.element.attr('role','tablist');
this.headers
.attr('role','tab')
.bind('keydown', function(event) { return self._keydown(event); })
.next()
.attr('role','tabpanel');
this.headers
.not(this.active || "")
.attr('aria-expanded','false')
.attr("tabIndex", "-1")
.next()
.hide();
// make sure at least one header is in the tab order
if (!this.active.length) {
this.headers.eq(0).attr('tabIndex','0');
} else {
this.active
.attr('aria-expanded','true')
.attr('tabIndex', '0');
}
// only need links in taborder for Safari
if (!$.browser.safari)
this.headers.find('a').attr('tabIndex','-1');
if (o.event) {
this.headers.bind((o.event) + ".accordion", function(event) { return self._clickHandler.call(self, event, this); });
}
},
destroy: function() {
var o = this.options;
this.element
.removeClass("ui-accordion ui-widget ui-helper-reset")
.removeAttr("role")
.unbind('.accordion')
.removeData('accordion');
this.headers
.unbind(".accordion")
.removeClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-corner-top")
.removeAttr("role").removeAttr("aria-expanded").removeAttr("tabindex");
this.headers.find("a").removeAttr("tabindex");
this.headers.children(".ui-icon").remove();
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");
if (o.autoHeight || o.fillHeight) {
contents.css("height", "");
}
},
_setData: function(key, value) {
if(key == 'alwaysOpen') { key = 'collapsible'; value = !value; }
$.widget.prototype._setData.apply(this, arguments);
},
_keydown: function(event) {
var o = this.options, keyCode = $.ui.keyCode;
if (o.disabled || event.altKey || event.ctrlKey)
return;
var length = this.headers.length;
var currentIndex = this.headers.index(event.target);
var toFocus = false;
switch(event.keyCode) {
case keyCode.RIGHT:
case keyCode.DOWN:
toFocus = this.headers[(currentIndex + 1) % length];
break;
case keyCode.LEFT:
case keyCode.UP:
toFocus = this.headers[(currentIndex - 1 + length) % length];
break;
case keyCode.SPACE:
case keyCode.ENTER:
return this._clickHandler({ target: event.target }, event.target);
}
if (toFocus) {
$(event.target).attr('tabIndex','-1');
$(toFocus).attr('tabIndex','0');
toFocus.focus();
return false;
}
return true;
},
resize: function() {
var o = this.options, maxHeight;
if (o.fillSpace) {
if($.browser.msie) { var defOverflow = this.element.parent().css('overflow'); this.element.parent().css('overflow', 'hidden'); }
maxHeight = this.element.parent().height();
if($.browser.msie) { this.element.parent().css('overflow', defOverflow); }
this.headers.each(function() {
maxHeight -= $(this).outerHeight();
});
var maxPadding = 0;
this.headers.next().each(function() {
maxPadding = Math.max(maxPadding, $(this).innerHeight() - $(this).height());
}).height(Math.max(0, maxHeight - maxPadding))
.css('overflow', 'auto');
} else if ( o.autoHeight ) {
maxHeight = 0;
this.headers.next().each(function() {
maxHeight = Math.max(maxHeight, $(this).outerHeight());
}).height(maxHeight);
}
},
activate: function(index) {
// call clickHandler with custom event
var active = this._findActive(index)[0];
this._clickHandler({ target: active }, active);
},
_findActive: function(selector) {
return selector
? typeof selector == "number"
? this.headers.filter(":eq(" + selector + ")")
: this.headers.not(this.headers.not(selector))
: selector === false
? $([])
: this.headers.filter(":eq(0)");
},
_clickHandler: function(event, target) {
var o = this.options;
if (o.disabled) return false;
// called only when using activate(false) to close all parts programmatically
if (!event.target && o.collapsible) {
this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all")
.find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
this.active.next().addClass('ui-accordion-content-active');
var toHide = this.active.next(),
data = {
options: o,
newHeader: $([]),
oldHeader: o.active,
newContent: $([]),
oldContent: toHide
},
toShow = (this.active = $([]));
this._toggle(toShow, toHide, data);
return false;
}
// get the click target
var clicked = $(event.currentTarget || target);
var clickedIsActive = clicked[0] == this.active[0];
// if animations are still active, or the active header is the target, ignore click
if (this.running || (!o.collapsible && clickedIsActive)) {
return false;
}
// switch classes
this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all")
.find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
this.active.next().addClass('ui-accordion-content-active');
if (!clickedIsActive) {
clicked.removeClass("ui-state-default ui-corner-all").addClass("ui-state-active ui-corner-top")
.find(".ui-icon").removeClass(o.icons.header).addClass(o.icons.headerSelected);
clicked.next().addClass('ui-accordion-content-active');
}
// find elements to show and hide
var toShow = clicked.next(),
toHide = this.active.next(),
data = {
options: o,
newHeader: clickedIsActive && o.collapsible ? $([]) : clicked,
oldHeader: this.active,
newContent: clickedIsActive && o.collapsible ? $([]) : toShow.find('> *'),
oldContent: toHide.find('> *')
},
down = this.headers.index( this.active[0] ) > this.headers.index( clicked[0] );
this.active = clickedIsActive ? $([]) : clicked;
this._toggle(toShow, toHide, data, clickedIsActive, down);
return false;
},
_toggle: function(toShow, toHide, data, clickedIsActive, down) {
var o = this.options, self = this;
this.toShow = toShow;
this.toHide = toHide;
this.data = data;
var complete = function() { if(!self) return; return self._completed.apply(self, arguments); };
// trigger changestart event
this._trigger("changestart", null, this.data);
// count elements to animate
this.running = toHide.size() === 0 ? toShow.size() : toHide.size();
if (o.animated) {
var animOptions = {};
if ( o.collapsible && clickedIsActive ) {
animOptions = {
toShow: $([]),
toHide: toHide,
complete: complete,
down: down,
autoHeight: o.autoHeight || o.fillSpace
};
} else {
animOptions = {
toShow: toShow,
toHide: toHide,
complete: complete,
down: down,
autoHeight: o.autoHeight || o.fillSpace
};
}
if (!o.proxied) {
o.proxied = o.animated;
}
if (!o.proxiedDuration) {
o.proxiedDuration = o.duration;
}
o.animated = $.isFunction(o.proxied) ?
o.proxied(animOptions) : o.proxied;
o.duration = $.isFunction(o.proxiedDuration) ?
o.proxiedDuration(animOptions) : o.proxiedDuration;
var animations = $.ui.accordion.animations,
duration = o.duration,
easing = o.animated;
if (!animations[easing]) {
animations[easing] = function(options) {
this.slide(options, {
easing: easing,
duration: duration || 700
});
};
}
animations[easing](animOptions);
} else {
if (o.collapsible && clickedIsActive) {
toShow.toggle();
} else {
toHide.hide();
toShow.show();
}
complete(true);
}
toHide.prev().attr('aria-expanded','false').attr("tabIndex", "-1").blur();
toShow.prev().attr('aria-expanded','true').attr("tabIndex", "0").focus();
},
_completed: function(cancel) {
var o = this.options;
this.running = cancel ? 0 : --this.running;
if (this.running) return;
if (o.clearStyle) {
this.toShow.add(this.toHide).css({
height: "",
overflow: ""
});
}
this._trigger('change', null, this.data);
}
});
$.extend($.ui.accordion, {
version: "1.7.1",
defaults: {
active: null,
alwaysOpen: true, //deprecated, use collapsible
animated: 'slide',
autoHeight: true,
clearStyle: false,
collapsible: false,
event: "click",
fillSpace: false,
header: "> li > :first-child,> :not(li):even",
icons: {
header: "ui-icon-triangle-1-e",
headerSelected: "ui-icon-triangle-1-s"
},
navigation: false,
navigationFilter: function() {
return this.href.toLowerCase() == location.href.toLowerCase();
}
},
animations: {
slide: function(options, additions) {
options = $.extend({
easing: "swing",
duration: 300
}, options, additions);
if ( !options.toHide.size() ) {
options.toShow.animate({height: "show"}, options);
return;
}
if ( !options.toShow.size() ) {
options.toHide.animate({height: "hide"}, options);
return;
}
var overflow = options.toShow.css('overflow'),
percentDone,
showProps = {},
hideProps = {},
fxAttrs = [ "height", "paddingTop", "paddingBottom" ],
originalWidth;
// fix width before calculating height of hidden element
var s = options.toShow;
originalWidth = s[0].style.width;
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) );
$.each(fxAttrs, function(i, prop) {
hideProps[prop] = 'hide';
var parts = ('' + $.css(options.toShow[0], prop)).match(/^([\d+-.]+)(.*)$/);
showProps[prop] = {
value: parts[1],
unit: parts[2] || 'px'
};
});
options.toShow.css({ height: 0, overflow: 'hidden' }).show();
options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate(hideProps,{
step: function(now, settings) {
// only calculate the percent when animating height
// IE gets very inconsistent results when animating elements
// with small values, which is common for padding
if (settings.prop == 'height') {
percentDone = (settings.now - settings.start) / (settings.end - settings.start);
}
options.toShow[0].style[settings.prop] =
(percentDone * showProps[settings.prop].value) + showProps[settings.prop].unit;
},
duration: options.duration,
easing: options.easing,
complete: function() {
if ( !options.autoHeight ) {
options.toShow.css("height", "");
}
options.toShow.css("width", originalWidth);
options.toShow.css({overflow: overflow});
options.complete();
}
});
},
bounceslide: function(options) {
this.slide(options, {
easing: options.down ? "easeOutBounce" : "swing",
duration: options.down ? 1000 : 200
});
},
easeslide: function(options) {
this.slide(options, {
easing: "easeinout",
duration: 700
});
}
}
});
})(jQuery);
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