jquery/fx/fx.js

318 lines
6.6 KiB
JavaScript

$.speed = function(s,o) {
if ( o && o.constructor == Function ) { o = { onComplete: o }; }
o = o || {};
var ss = {"crawl":1200,"xslow":850,"slow":600,"medium":400,"fast":200,"xfast":75,"normal":400};
o.duration = typeof s == "number" ? s : ss[s] || 400;
o.oldComplete = o.onComplete;
o.onComplete = function(){
$.dequeue(this, 'fx');
if ( o.oldComplete && o.oldComplete.constructor == Function ) {
$.apply( this, o.oldComplete );
}
};
return o;
};
$.queue = {};
$.dequeue = function(elem,type){
type = type || 'fx';
if ( elem.$$queue && elem.$$queue[type] ) {
// Remove self
elem.$$queue[type].shift();
// Get next function
var f = elem.$$queue[type][0];
if ( f ) {
$.apply( elem, f );
}
}
};
$.fn.queue = function(type,fn){
if ( !fn ) {
fn = type;
type = 'fx';
}
return this.each(function(){
if ( !this.$$queue ) {
this.$$queue = {};
}
if ( !this.$$queue[type] ) {
this.$$queue[type] = [];
}
this.$$queue[type].push( fn );
if ( this.$$queue[type].length == 1 ) {
$.apply(this,fn);
}
});
};
$.fn._hide = $.fn.hide;
$.fn.hide = function(a,o) {
o = $.speed(a,o);
return a ? this.queue(function(){
new $.fx.FadeSize(this,o).hide();
}) : this._hide();
};
$.fn._show = $.fn.show;
$.fn.show = function(a,o) {
o = $.speed(a,o);
return a ? this.queue(function(){
new $.fx.FadeSize(this,o).show();
}) : this._show();
};
$.fn.slideDown = function(a,o) {
o = $.speed(a,o);
return this.queue(function(){
new $.fx.Resize(this,o).show("height");
});
};
$.fn.slideUp = function(a,o) {
o = $.speed(a,o);
return this.queue(function(){
new $.fx.Resize(this,o).hide("height");
});
};
$.fn.fadeOut = function(a,o) {
o = $.speed(a,o);
return a ? this.queue(function(){
new $.fx.Opacity(this,o,1).hide();
}) : this._hide();
};
$.fn.fadeIn = function(a,o) {
o = $.speed(a,o);
return a ? this.queue(function(){
new $.fx.Opacity(this,o,1).show();
}) : this._show();
};
$.fn.fadeTo = function(a,ev,o) {
o = $.speed(a,o);
return a ? this.queue(function(){
ef = new $.fx.Opacity(this,o);
ef.custom(ef.cur(),parseFloat(ev));
ef.show();
}) : this._show();
};
$.fn.center = function(f) {
return this.each(function(){
if ( !f && this.nodeName == 'IMG' &&
!this.offsetWidth && !this.offsetHeight ) {
var self = this;
setTimeout(function(){
$(self).center(true);
}, 13);
} else {
var s = this.style;
var p = this.parentNode;
if ( $.css(p,"position") == 'static' ) {
p.style.position = 'relative';
}
s.position = 'absolute';
s.left = (($.css(p,"width") - $.css(this,"width"))/2) + "px";
s.top = (($.css(p,"height") - $.css(this,"height"))/2) + "px";
}
});
};
$.setAuto = function(e,p) {
var a = e.style[p];
var o = $.css(e,p);
e.style[p] = 'auto';
var n = $.css(e,p);
if ( o != n ) {
e.style[p] = a;
}
};
/*
* I originally wrote fx() as a clone of moo.fx and in the process
* of making it small in size the code became illegible to sane
* people. You've been warned.
*/
$.fx = function(el,op,ty){
var z = this;
// The users options
z.o = {
duration: (op && op.duration) || 400,
onComplete: (op && op.onComplete) || op
};
// The element
z.el = el;
// The styles
var y = z.el.style;
// Simple function for setting a style value
z.a = function(){
z.el.style[ty] = z.now+'px';
};
// Figure out the maximum number to run to
z.max = function(){return z.el["$$orig"+ty]||z.cur();};
// Get the current size
z.cur = function(){return $.css(z.el,ty);};
// Start an animation from one number to another
z.custom = function(from,to){
z.startTime = (new Date()).getTime();
z.now = from;
z.a();
z.timer = setInterval(function(){
z.step(from, to);
}, 13);
};
// Simple 'show' function
z.show = function(){
y.display = "block";
z.o.auto = true;
z.custom(0,z.max());
};
// Simple 'hide' function
z.hide = function(){
// Remember where we started, so that we can go back to it later
z.el["$$orig"+ty] = this.cur();
// Begin the animation
z.custom(z.cur(),0);
};
// Toggle between showing and hiding an element
z.toggle = function(){
if ( z.cur() > 0 ) {
z.hide();
} else {
z.show();
}
};
// Remember the overflow of the element
z.oldOverflow = y.overflow;
// Make sure that nothing sneaks out
y.overflow = "hidden";
// Each step of an animation
z.step = function(firstNum, lastNum){
var t = (new Date()).getTime();
if (t > z.o.duration + z.startTime) {
// Stop the timer
clearInterval(z.timer);
z.timer = null;
z.now = lastNum;
z.a();
// Reset the overflow
y.overflow = z.oldOverflow;
// If the element was shown, and not using a custom number,
// set its height and/or width to auto
if ( (ty == "height" || ty == "width") && z.o.auto ) {
$.setAuto( z.el, ty );
}
// If a callback was provided, execute it
if( z.o.onComplete.constructor == Function ) {
// Yes, this is a weird place for this, but it needs to be executed
// only once per cluster of effects.
// If the element is, effectively, hidden - hide it
if ( y.height == "0px" || y.width == "0px" ) {
y.display = "none";
}
$.apply( z.el, z.o.onComplete );
}
} else {
// Figure out where in the animation we are and set the number
var p = (t - this.startTime) / z.o.duration;
z.now = ((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;
// Perform the next step of the animation
z.a();
}
};
};
$.fx.fn = ["show","hide","toggle"];
$.fx.ty = ["Height","Width","Left","Top"];
(function(){
for(var $i in $.fx.ty){(function(){
var c = $.fx.ty[$i];
$.fx[c] = function(a,b){
return new $.fx(a,b,c.toLowerCase());
};
})();}
})();
$.fx.Opacity = function(a,b,sv){
var o = new $.fx(a,b,"opacity");
o.cur = function(){return parseFloat(o.el.style.opacity);};
o.a = function() {
var e = o.el.style;
if (o.now == 1) { o.now = 0.9999; }
if (window.ActiveXObject) {
e.filter = "alpha(opacity=" + o.now*100 + ")";
}
e.opacity = o.now;
};
o.io = o.now = (sv || o.cur());
o.a();
return o;
};
$.fx.Resize = function(e,o){
var z = this;
var h = new $.fx.Height(e,o);
if(o) { o.onComplete = null; }
var w = new $.fx.Width(e,o);
function c(a,b,d){return (!a||a==d||b==d);}
for(var i in $.fx.fn){(function(){
var j = $.fx.fn[i];
z[j] = function(a,b){
if(c(a,b,"height")) { h[j](); }
if(c(a,b,"width")) { w[j](); }
};
})();}
};
$.fx.FadeSize = function(e,o){
var z = this;
var r = new $.fx.Resize(e,o);
if(o) { o.onComplete = null; }
var p = new $.fx.Opacity(e,o,1);
for(var i in $.fx.fn){(function(){
var j = $.fx.fn[i];
z[j] = function(a,b){p[j]();r[j](a,b);};
})();}
};