-
-
-
-
- jQuery.fn.extend({
-
-
-
-
-
- show: function(speed,callback){
- return speed ?
- this.animate({
- height: "show", width: "show", opacity: "show"
- }, speed, callback) :
-
- this.filter(":hidden").each(function(){
- this.style.display = this.oldblock || "";
- if ( jQuery.css(this,"display") == "none" ) {
- var elem = jQuery("<" + this.tagName + " />").appendTo("body");
- this.style.display = elem.css("display");
-
-
- if (this.style.display == "none")
- this.style.display = "block";
- elem.remove();
- }
- }).end();
- },
-
-
- hide: function(speed,callback){
- return speed ?
- this.animate({
- height: "hide", width: "hide", opacity: "hide"
- }, speed, callback) :
-
- this.filter(":visible").each(function(){
- this.oldblock = this.oldblock || jQuery.css(this,"display");
- this.style.display = "none";
- }).end();
- },
-
-
- _toggle: jQuery.fn.toggle,
- ">http://jljlpch.javaeye.com/*/</A></SPAN>
/*
* author:prk date:2008-08-07 comment:analyse the fx of jQuery.
*
*/
jQuery.fn.extend({
// show(speed,[callback])
// 以优雅的动画隐藏所有匹配的元素,并在显示完成后可选地触发一个回调函数。
// 可以根据指定的速度动态地改变每个匹配元素的高度、宽度和不透明度。
// 显示隐藏的匹配元素 show()
show: function(speed,callback){
return speed ?
this.animate({
height: "show", width: "show", opacity: "show"
}, speed, callback) :
this.filter(":hidden").each(function(){
this.style.display = this.oldblock || "";
if ( jQuery.css(this,"display") == "none" ) {
var elem = jQuery("<" + this.tagName + " />").appendTo("body");
this.style.display = elem.css("display");// 默认的显示的display
// handle an edge condition where css is - div {
// display:none; } or similar
if (this.style.display == "none")// 处理显式地设定了该tag不显示,只好采用b
this.style.display = "block";
elem.remove();// 上面这些的处理有没有必要呢?
}
}).end();// 回到前一个jQuery对象
},
// 与show相反
hide: function(speed,callback){
return speed ?
this.animate({
height: "hide", width: "hide", opacity: "hide"
}, speed, callback) :
this.filter(":visible").each(function(){
this.oldblock = this.oldblock || jQuery.css(this,"display");
this.style.display = "none";
}).end();
},
// Save the old toggle function
_toggle: jQuery.fn.toggle,
/* prk/彭仁夔 转载请注明出处 http://jljlpch.javaeye.com/*/
-
-
-
-
-
-
-
- toggle: function( fn, fn2 ){
- return jQuery.isFunction(fn) && jQuery.isFunction(fn2) ?
- this._toggle.apply( this, arguments ) :
- (fn ?
- this.animate({height: "toggle", width: "toggle", opacity: "toggle"}, fn, fn2)
- : this.each(function(){jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]();}
-
- )
- );
- },
-
-
-
- fadeTo: function(speed,to,callback){
- return this.animate({opacity: to}, speed, callback);
- },
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- animate: function( prop, speed, easing, callback ) {
- var optall = jQuery.speed(speed, easing, callback);
-
- return this[ optall.queue === false ? "each" : "queue" ](function(){
- var opt = jQuery.extend({}, optall), p,
- hidden = this.nodeType == 1 && jQuery(this).is(":hidden"),
- self = this;
-
- for ( p in prop ) {
-
- if ( prop[p] == "hide" && hidden || prop[p] == "show" && !hidden )
- return opt.complete.call(this);
-
- if ( ( p == "height" || p == "width" ) && this.style ) {
- opt.display = jQuery.css(this, "display");
- opt.overflow = this.style.overflow;
- }
- }
- if ( opt.overflow != null )
- this.style.overflow = "hidden";
-
- opt.curAnim = jQuery.extend({}, prop);
-
- jQuery.each( prop, function(name, val){
- var e = new jQuery.fx( self, opt, name );
-
- if ( /toggle|show|hide/.test(val) )
-
- e[ val == "toggle" ? hidden ? "show" : "hide" : val ]( prop );
- else {
- var parts = val.toString().match(/^([+-]=)?([\d+-.]+)(.*)$/),
- start = e.cur(true) || 0;
-
- if ( parts ) {
- var end = parseFloat(parts[2]),
- unit = parts[3] || "px";
-
- if ( unit != "px" ) {
- self.style[ name ] = (end || 1) + unit;
- start = ((end || 1) / e.cur(true)) * start;
- self.style[ name ] = start + unit;
- }
-
- if ( parts[1] )
- end = ((parts[1] == "-=" ? -1 : 1) * end) + start;
-
- e.custom( start, end, unit );
- }
-
- else
- e.custom( start, val, "" );
- }
- });
-
- return true;
- });
- },
-
-
- queue: function(type, fn){
-
- if ( jQuery.isFunction(type) || ( type && type.constructor == Array )) {
- fn = type;
- type = "fx";
- }
-
- if ( !type || (typeof type == "string" && !fn) )
- return queue( this[0], type );
-
- return this.each(function(){
-
- if ( fn.constructor == Array )
- queue(this, type, fn);
-
- else {
- queue(this, type).push( fn );
- if ( queue(this, type).length == 1 )
- fn.call(this);
- }
- });
- },
-
- stop: function(clearQueue, gotoEnd){
- var timers = jQuery.timers;
-
- if (clearQueue)
- this.queue([]);
-
- this.each(function(){
-
- for ( var i = timers.length - 1; i >= 0; i-- )
- if ( timers[i].elem == this ) {
- if (gotoEnd) timers[i](true);
-
- timers.splice(i, 1);
- }
- });
-
- if (!gotoEnd)
- this.dequeue();
-
- return this;
- }
-
- });
-
-
- jQuery.each({
- slideDown: { height:"show" },
- slideUp: { height: "hide" },
- slideToggle: { height: "toggle" },
- fadeIn: { opacity: "show" },
- fadeOut: { opacity: "hide" }
- }, function( name, props ){
- jQuery.fn[ name ] = function( speed, callback ){
- return this.animate( props, speed, callback );
- };
- });
-
-
- var queue = function( elem, type, array ) {
- if ( elem ){
- type = type || "fx";
- var q = jQuery.data( elem, type + "queue" );
- if ( !q || array )
- q = jQuery.data( elem, type + "queue", jQuery.makeArray(array) );
- }
- return q;
- };
-
- jQuery.fn.dequeue = function(type){
- type = type || "fx";
- return this.each(function(){
- var q = queue(this, type);
- q.shift();
- if ( q.length )
- q[0].call( this );
- });
- };
-
-
- jQuery.extend({
-
- speed: function(speed, easing, fn) {
- var opt = speed && speed.constructor == Object ? speed : {
- complete: fn || !fn && easing ||
- jQuery.isFunction( speed ) && speed,
- duration: speed,
- easing: fn && easing || easing && easing.constructor != Function && easing
- };
-
- opt.duration = (opt.duration && (opt.duration.constructor == Number ?
- opt.duration : jQuery.fx.speeds[opt.duration]))
- || jQuery.fx.speeds._default;
-
-
- opt.old = opt.complete;
- opt.complete = function(){
- if ( opt.queue !== false )
- jQuery(this).dequeue();
- if ( jQuery.isFunction( opt.old ) )
- opt.old.call( this );
- };
-
- return opt;
- },
-
-
- easing: {
- linear: function( p, n, firstNum, diff ) {
- return firstNum + diff * p;
- },
- swing: function( p, n, firstNum, diff ) {
- return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
- }
- },
-
- timers: [],
- timerId: null,
-
-
- fx: function( elem, options, prop ){
- this.options = options;
- this.elem = elem;
- this.prop = prop;
-
- if ( !options.orig )
- options.orig = {};
- }
-
- });
-
- jQuery.fx.prototype = {
-
-
- update: function(){
-
-
-
- if ( this.options.step )
- this.options.step.call( this.elem, this.now, this );
-
- (jQuery.fx.step[this.prop] || jQuery.fx.step._default)( this );
-
-
- if ( ( this.prop == "height" || this.prop == "width" ) && this.elem.style )
- this.elem.style.display = "block";
- },
-
-
- cur: function(force){
- if ( this.elem[this.prop] != null && (!this.elem.style || this.elem.style[this.prop] == null) )
- return this.elem[ this.prop ];
-
- var r = parseFloat(jQuery.css(this.elem, this.prop, force));
- return r && r > -10000 ? r : parseFloat(jQuery.curCSS(this.elem, this.prop)) || 0;
- },
-
-
- custom: function(from, to, unit){
- this.startTime = now();
- this.start = from;
- this.end = to;
- this.unit = unit || this.unit || "px";
- this.now = this.start;
-
-
- this.pos = this.state = 0;
-
- this.update();
-
- var self = this;
- function t(gotoEnd){
- return self.step(gotoEnd);
- }
- t.elem = this.elem;
-
- jQuery.timers.push(t);
-
- if ( jQuery.timerId == null ) {
- jQuery.timerId = setInterval(function(){
- var timers = jQuery.timers;
-
- for ( var i = 0; i < timers.length; i++ )
-
-
-
- if ( !timers[i]() )
- timers.splice(i--, 1);
-
-
-
-
- if ( !timers.length ) {
- clearInterval( jQuery.timerId );
- jQuery.timerId = null;
- }
- }, 13);
- }
- },
-
-
- show: function(){
-
- this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
- this.options.show = true;
-
- this.custom(0, this.cur());
-
-
- if ( this.prop == "width" || this.prop == "height" )
- this.elem.style[this.prop] = "1px";
- jQuery(this.elem).show();
- },
-
-
- hide: function(){
-
- this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
- this.options.hide = true;
-
- this.custom(this.cur(), 0);
- },
-
-
- step: function(gotoEnd){
- var t = now();
-
- if ( gotoEnd || t > this.options.duration + this.startTime ) {
- this.now = this.end;
- this.pos = this.state = 1;
- this.update();
-
- this.options.curAnim[ this.prop ] = true;
-
- var done = true;
- for ( var i in this.options.curAnim )
- if ( this.options.curAnim[i] !== true )
- done = false;
-
- if ( done ) {
- if ( this.options.display != null ) {
- this.elem.style.overflow = this.options.overflow;
-
- this.elem.style.display = this.options.display;
-
- if ( jQuery.css(this.elem, "display") == "none" )
- this.elem.style.display = "block";
- }
-
-
- if ( this.options.hide )
- this.elem.style.display = "none";
-
-
- if ( this.options.hide || this.options.show )
- for ( var p in this.options.curAnim )
- jQuery.attr(this.elem.style, p, this.options.orig[p]);
- }
-
- if ( done )
- this.options.complete.call( this.elem );
-
- return false;
- } else {
- var n = t - this.startTime;
- this.state = n / this.options.duration;
-
-
- this.pos = jQuery.easing[this.options.easing ||
- (jQuery.easing.swing ? "swing" : "linear")](this.state, n, 0, 1, this.options.duration);
-
- this.now = this.start + ((this.end - this.start) * this.pos);
-
-
- this.update();
- }
-
- return true;
- }
-
- };
-
- jQuery.extend( jQuery.fx, {
-
- speeds:{
- slow: 600,
- fast: 200,
-
- _default: 400
- },
-
-
- step: {
- opacity: function(fx){
- jQuery.attr(fx.elem.style, "opacity", fx.now);
- },
-
- _default: function(fx){
- if( fx.prop in fx.elem )
- fx.elem[ fx.prop ] = fx.now;
- else if( fx.elem.style )
- fx.elem.style[ fx.prop ] = fx.now + fx.unit;
- }
- }
- });