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Fx.Accordion.js
104 lines (95 loc) · 3.47 KB
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Fx.Accordion.js
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/*
Script: Fx.Accordion.js
An Fx.Elements extension which allows you to easily create accordion type controls.
License:
MIT-style license.
Authors:
Valerio Proietti
*/
Fx.Accordion = new Class({
Extends: Fx.Elements,
options: {/*
onActive: $empty(toggler, section),
onBackground: $empty(toggler, section),*/
display: 0,
show: false,
height: true,
width: false,
opacity: true,
fixedHeight: false,
fixedWidth: false,
wait: false,
alwaysHide: false,
trigger: 'click'
},
initialize: function(){
var params = Array.link(arguments, {'container': Element.type, 'options': Object.type, 'togglers': $defined, 'elements': $defined});
this.parent(params.elements, params.options);
this.togglers = $$(params.togglers);
this.container = $(params.container);
this.previous = -1;
if (this.options.alwaysHide) this.options.wait = true;
if ($chk(this.options.show)){
this.options.display = false;
this.previous = this.options.show;
}
if (this.options.start){
this.options.display = false;
this.options.show = false;
}
this.effects = {};
if (this.options.opacity) this.effects.opacity = 'fullOpacity';
if (this.options.width) this.effects.width = this.options.fixedWidth ? 'fullWidth' : 'offsetWidth';
if (this.options.height) this.effects.height = this.options.fixedHeight ? 'fullHeight' : 'scrollHeight';
for (var i = 0, l = this.togglers.length; i < l; i++) this.addSection(this.togglers[i], this.elements[i]);
this.elements.each(function(el, i){
if (this.options.show === i){
this.fireEvent('active', [this.togglers[i], el]);
} else {
for (var fx in this.effects) el.setStyle(fx, 0);
}
}, this);
if ($chk(this.options.display)) this.display(this.options.display);
},
addSection: function(toggler, element, pos){
toggler = $(toggler);
element = $(element);
var test = this.togglers.contains(toggler);
var len = this.togglers.length;
this.togglers.include(toggler);
this.elements.include(element);
if (len && (!test || pos)){
pos = $pick(pos, len - 1);
toggler.inject(this.togglers[pos], 'before');
element.inject(toggler, 'after');
} else if (this.container && !test){
toggler.inject(this.container);
element.inject(this.container);
}
var idx = this.togglers.indexOf(toggler);
toggler.addEvent(this.options.trigger, this.display.bind(this, idx));
if (this.options.height) element.setStyles({'padding-top': 0, 'border-top': 'none', 'padding-bottom': 0, 'border-bottom': 'none'});
if (this.options.width) element.setStyles({'padding-left': 0, 'border-left': 'none', 'padding-right': 0, 'border-right': 'none'});
element.fullOpacity = 1;
if (this.options.fixedWidth) element.fullWidth = this.options.fixedWidth;
if (this.options.fixedHeight) element.fullHeight = this.options.fixedHeight;
element.setStyle('overflow', 'hidden');
if (!test){
for (var fx in this.effects) element.setStyle(fx, 0);
}
return this;
},
display: function(index){
index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;
if ((this.timer && this.options.wait) || (index === this.previous && !this.options.alwaysHide)) return this;
this.previous = index;
var obj = {};
this.elements.each(function(el, i){
obj[i] = {};
var hide = (i != index) || (this.options.alwaysHide && (el.offsetHeight > 0));
this.fireEvent(hide ? 'background' : 'active', [this.togglers[i], el]);
for (var fx in this.effects) obj[i][fx] = hide ? 0 : el[this.effects[fx]];
}, this);
return this.start(obj);
}
});