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/* Simple Accordion Script
* Requires Prototype and Script.aculo.us Libraries
* By: Brian Crescimanno <brian.crescimanno@gmail.com>
* http://briancrescimanno.com
* Adapted to Prado & minor improvements: Gabor Berczi <gabor.berczi@devworx.hu>
* This work is licensed under the Creative Commons Attribution-Share Alike 3.0
* http://creativecommons.org/licenses/by-sa/3.0/us/
*/
Prado.WebUI.TAccordion = Class.create(Prado.WebUI.Control,
{
onInit : function(options)
{
this.accordion = $(options.ID);
this.options = options;
this.hiddenField = $(options.ID+'_1');
if (this.options.maxHeight)
{
this.maxHeight = this.options.maxHeight;
} else {
this.maxHeight = 0;
this.checkMaxHeight();
}
this.currentView = null;
this.oldView = null;
var i = 0;
for(var view in this.options.Views)
{
var header = $(view+'_0');
if(header)
{
this.observe(header, "click", this.elementClicked.bindEvent(this,view));
if(this.hiddenField.value == i)
{
this.currentView = view;
if($(this.currentView).getHeight() != this.maxHeight)
$(this.currentView).setStyle({height: this.maxHeight+"px"});
}
}
i++;
}
},
checkMaxHeight: function()
{
for(var viewID in this.options.Views)
{
var view = $(viewID);
if(view.getHeight() > this.maxHeight)
this.maxHeight = view.getHeight();
}
},
elementClicked : function(event,viewID)
{
// dummy effect to force processing of click into the event queue
// is not actually supposed to change the appearance of the accordion
var obj = this;
new Effect.Opacity(
this.element,
{
from: 1.0, to: 1.0, duration: 0.0,
queue: {
position: 'end',
scope: 'accordion'
},
afterFinish: function() { obj.processElementClick(event, viewID); }
}
);
},
processElementClick : function(event,viewID)
{
var i = 0;
for(var index in this.options.Views)
{
if ($(index))
{
var header = $(index+'_0');
if(index == viewID)
{
this.oldView = this.currentView;
this.currentView = index;
this.hiddenField.value=i;
}
}
i++;
}
if(this.oldView != this.currentView)
{
if(this.options.Duration > 0)
{
this.animate();
} else {
$(this.currentView).setStyle({ height: this.maxHeight+"px" });
$(this.currentView).show();
$(this.oldView).hide();
var oldHeader = $(this.oldView+'_0');
var currentHeader = $(this.currentView+'_0');
oldHeader.className=this.options.HeaderCssClass;
currentHeader.className=this.options.ActiveHeaderCssClass;
}
}
},
animate: function() {
var effects = new Array();
var options = {
sync: true,
queue: {
position: 'end',
scope: 'accordion'
},
scaleFrom: 0,
scaleContent: false,
transition: Effect.Transitions.sinoidal,
scaleMode: {
originalHeight: this.maxHeight,
originalWidth: this.accordion.getWidth()
},
scaleX: false,
scaleY: true
};
effects.push(new Effect.Scale(this.currentView, 100, options));
options = {
sync: true,
queue: {
position: 'end',
scope: 'accordion'
},
scaleContent: false,
transition: Effect.Transitions.sinoidal,
scaleX: false,
scaleY: true
};
effects.push(new Effect.Scale(this.oldView, 0, options));
var oldHeader = $(this.oldView+'_0');
var currentHeader = $(this.currentView+'_0');
new Effect.Parallel(effects, {
duration: this.options.Duration,
fps: 35,
queue: {
position: 'end',
scope: 'accordion'
},
beforeStart: function() {
$(this.currentView).setStyle({ height: "0px" });
$(this.currentView).show();
oldHeader.className=this.options.HeaderCssClass;
currentHeader.className=this.options.ActiveHeaderCssClass;
}.bind(this),
afterFinish: function() {
$(this.oldView).hide();
$(this.currentView).setStyle({ height: this.maxHeight+"px" });
}.bind(this)
});
}
});
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