/*
moo.fx pack, effects extensions for moo.fx.
by Valerio Proietti (http://mad4milk.net) MIT-style LICENSE
for more info visit (http://moofx.mad4milk.net).
Sunday, February 05, 2006
v 1.2
*/
//smooth scroll
fx.Scroll = Class.create();
fx.Scroll.prototype = Object.extend(new fx.Base(), {
initialize: function(options) {
this.setOptions(options);
},
scrollTo: function(el){
var dest = Position.cumulativeOffset($(el))[1];
var client = window.innerHeight || document.documentElement.clientHeight;
var full = document.documentElement.scrollHeight;
var top = window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop;
if (dest+client > full) this.custom(top, dest - client + (full-dest));
else this.custom(top, dest);
},
increase: function(){
window.scrollTo(0, this.now);
}
});
//text size modify, now works with pixels too.
fx.Text = Class.create();
fx.Text.prototype = Object.extend(new fx.Base(), {
initialize: function(el, options) {
this.el = $(el);
this.setOptions(options);
if (!this.options.unit) this.options.unit = "em";
},
increase: function() {
//alert("increasing");
this.el.style.fontSize = 1*(this.el.style.fontSize.substr(0,2)) + 1*this.options.unit;
}
});
//composition effect: widht/height/opacity
fx.Combo = Class.create();
fx.Combo.prototype = {
setOptions: function(options) {
this.options = {
opacity: true,
height: true,
width: false
}
Object.extend(this.options, options || {});
},
initialize: function(el, options) {
this.el = $(el);
this.setOptions(options);
if (this.options.opacity) {
this.el.o = new fx.Opacity(el, options);
options.onComplete = null;
}
if (this.options.height) {
this.el.h = new fx.Height(el, options);
options.onComplete = null;
}
if (this.options.width) this.el.w = new fx.Width(el, options);
},
toggle: function() { this.checkExec('toggle'); },
hide: function(){ this.checkExec('hide'); },
clearTimer: function(){ this.checkExec('clearTimer'); },
checkExec: function(func){
if (this.el.o) this.el.o[func]();
if (this.el.h) this.el.h[func]();
if (this.el.w) this.el.w[func]();
},
//only if width+height
resizeTo: function(hto, wto) {
if (this.el.h && this.el.w) {
this.h.custom(this.el.offsetHeight, this.el.offsetHeight + hto);
this.w.custom(this.el.offsetWidth, this.el.offsetWidth + wto);
}
},
customSize: function(hto, wto) {
if (this.el.h && this.el.w) {
this.h.custom(this.el.offsetHeight, hto);
this.w.custom(this.el.offsetWidth, wto);
}
}
}
fx.Accordion = Class.create();
fx.Accordion.prototype = {
setOptions: function(options) {
this.options = {
delay: 100,
opacity: false
}
Object.extend(this.options, options || {});
},
initialize: function(togglers, elements, options) {
this.elements = elements;
this.setOptions(options);
elements.each(function(el, i){
options.onComplete = function(){
if (el.offsetHeight > 0) el.style.height = '1%';
}
el.fx = new fx.Combo(el, options);
el.fx.hide();
});
togglers.each(function(tog, i){
tog.onclick = function(){
this.showThisHideOpen(elements[i]);
}.bind(this);
}.bind(this));
},
showThisHideOpen: function(toShow){
if (toShow.offsetHeight == 0) setTimeout(function(){this.clearAndToggle(toShow);}.bind(this), this.options.delay);
this.elements.each(function(el, i){
if (el.offsetHeight > 0 && el != toShow) this.clearAndToggle(el);
}.bind(this));
},
clearAndToggle: function(el){
el.fx.clearTimer();
el.fx.toggle();
}
}
var Remember = new Object();
Remember = function(){};
Remember.prototype = {
initialize: function(el, options){
this.el = $(el);
this.days = 365;
this.options = options;
this.effect();
var cookie = this.readCookie();
if (cookie) {
this.fx.now = cookie;
this.fx.increase();
}
},
//cookie functions based on code by Peter-Paul Koch
setCookie: function(value) {
var date = new Date();
date.setTime(date.getTime()+(this.days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
document.cookie = this.el+this.el.id+this.prefix+"="+value+expires+"; path=/";
},
readCookie: function() {
var nameEQ = this.el+this.el.id+this.prefix + "=";
var ca = document.cookie.split(';');
for(var i=0;c=ca[i];i++) {
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return false;
},
custom: function(from, to){
if (this.fx.now != to) {
this.setCookie(to);
this.fx.custom(from, to);
}
}
}
fx.RememberHeight = Class.create();
fx.RememberHeight.prototype = Object.extend(new Remember(), {
effect: function(){
this.fx = new fx.Height(this.el, this.options);
this.prefix = 'height';
},
toggle: function(){
if (this.el.offsetHeight == 0) this.setCookie(this.el.scrollHeight);
else this.setCookie(0);
this.fx.toggle();
},
resize: function(to){
this.setCookie(this.el.offsetHeight+to);
this.fx.custom(this.el.offsetHeight,this.el.offsetHeight+to);
},
hide: function(){
if (!this.readCookie()) {
this.fx.hide();
}
}
});
fx.RememberText = Class.create();
fx.RememberText.prototype = Object.extend(new Remember(), {
effect: function(){
this.fx = new fx.Text(this.el, this.options);
this.prefix = 'text';
}
});
//useful for-replacement
Array.prototype.each = function(func){
for(var i=0;ob=this[i];i++) func(ob, i);
}
//Easing Equations (c) 2003 Robert Penner, all rights reserved.
//This work is subject to the terms in http://www.robertpenner.com/easing_terms_of_use.html.
//expo
fx.expoIn = function(pos){
return Math.pow(2, 10 * (pos - 1));
}
fx.expoOut = function(pos){
return (-Math.pow(2, -10 * pos) + 1);
}
//quad
fx.quadIn = function(pos){
return Math.pow(pos, 2);
}
fx.quadOut = function(pos){
return -(pos)*(pos-2);
}
//circ
fx.circOut = function(pos){
return Math.sqrt(1 - Math.pow(pos-1,2));
}
fx.circIn = function(pos){
return -(Math.sqrt(1 - Math.pow(pos, 2)) - 1);
}
//back
fx.backIn = function(pos){
return (pos)*pos*((2.7)*pos - 1.7);
}
fx.backOut = function(pos){
return ((pos-1)*(pos-1)*((2.7)*(pos-1) + 1.7) + 1);
}
//sine
fx.sineOut = function(pos){
return Math.sin(pos * (Math.PI/2));
}
fx.sineIn = function(pos){
return -Math.cos(pos * (Math.PI/2)) + 1;
}
fx.sineInOut = function(pos){
return -(Math.cos(Math.PI*pos) - 1)/2;
}
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