Subversion-Projekte lars-tiefland.codeigniter

/*
moo.fx, simple effects library built with prototype.js (http://prototype.conio.net).
by Valerio Proietti (http://mad4milk.net) MIT-style LICENSE.
for more info (http://moofx.mad4milk.net).
10/24/2005
v(1.0.2)
*/

//base
var fx = new Object();
fx.Base = function(){};
fx.Base.prototype = {
        setOptions: function(options) {
        this.options = {
                duration: 500,
                onComplete: ''
        }
        Object.extend(this.options, options || {});
        },

        go: function() {
                this.duration = this.options.duration;
                this.startTime = (new Date).getTime();
                this.timer = setInterval (this.step.bind(this), 13);
        },

        step: function() {
                var time  = (new Date).getTime();
                var Tpos   = (time - this.startTime) / (this.duration);
                if (time >= this.duration+this.startTime) {
                        this.now = this.to;
                        clearInterval (this.timer);
                        this.timer = null;
                        if (this.options.onComplete) setTimeout(this.options.onComplete.bind(this), 10);
                }
                else {
                        this.now = ((-Math.cos(Tpos*Math.PI)/2) + 0.5) * (this.to-this.from) + this.from;
                        //this time-position, sinoidal transition thing is from script.aculo.us
                }
                this.increase();
        },

        custom: function(from, to) {
                if (this.timer != null) return;
                this.from = from;
                this.to = to;
                this.go();
        },

        hide: function() {
                this.now = 0;
                this.increase();
        },

        clearTimer: function() {
                clearInterval(this.timer);
                this.timer = null;
        }
}

//stretchers
fx.Layout = Class.create();
fx.Layout.prototype = Object.extend(new fx.Base(), {
        initialize: function(el, options) {
                this.el = $(el);
                this.el.style.overflow = "hidden";
                this.el.iniWidth = this.el.offsetWidth;
                this.el.iniHeight = this.el.offsetHeight;
                this.setOptions(options);
        }
});

fx.Height = Class.create();
Object.extend(Object.extend(fx.Height.prototype, fx.Layout.prototype), {        
        increase: function() {
                this.el.style.height = this.now + "px";
        },

        toggle: function() {
                if (this.el.offsetHeight > 0) this.custom(this.el.offsetHeight, 0);
                else this.custom(0, this.el.scrollHeight);
        }
});

fx.Width = Class.create();
Object.extend(Object.extend(fx.Width.prototype, fx.Layout.prototype), { 
        increase: function() {
                this.el.style.width = this.now + "px";
        },

        toggle: function(){
                if (this.el.offsetWidth > 0) this.custom(this.el.offsetWidth, 0);
                else this.custom(0, this.el.iniWidth);
        }
});

//fader
fx.Opacity = Class.create();
fx.Opacity.prototype = Object.extend(new fx.Base(), {
        initialize: function(el, options) {
                this.el = $(el);
                this.now = 1;
                this.increase();
                this.setOptions(options);
        },

        increase: function() {
                if (this.now == 1) this.now = 0.9999;
                if (this.now > 0 && this.el.style.visibility == "hidden") this.el.style.visibility = "visible";
                if (this.now == 0) this.el.style.visibility = "hidden";
                if (window.ActiveXObject) this.el.style.filter = "alpha(opacity=" + this.now*100 + ")";
                this.el.style.opacity = this.now;
        },

        toggle: function() {
                if (this.now > 0) this.custom(1, 0);
                else this.custom(0, 1);
        }
});