4 * Displays each of the set of matched elements if they are hidden.
6 * @example $("p").show()
7 * @before <p style="display: none">Hello</p>
8 * @result [ <p style="display: block">Hello</p> ]
16 * Show all matched elements using a graceful animation and firing an
17 * optional callback after completion.
19 * The height, width, and opacity of each of the matched elements
20 * are changed dynamically according to the specified speed.
22 * @example $("p").show("slow");
24 * @example $("p").show("slow",function(){
25 * alert("Animation Done.");
30 * @param String|Number speed A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
31 * @param Function callback (optional) A function to be executed whenever the animation completes.
33 * @see hide(String|Number,Function)
35 show: function(speed,callback){
38 height: "show", width: "show", opacity: "show"
42 this.style.display = this.oldblock ? this.oldblock : "";
43 if ( jQuery.css(this,"display") == "none" )
44 this.style.display = "block";
49 * Hides each of the set of matched elements if they are shown.
51 * @example $("p").hide()
52 * @before <p>Hello</p>
53 * @result [ <p style="display: none">Hello</p> ]
61 * Hide all matched elements using a graceful animation and firing an
62 * optional callback after completion.
64 * The height, width, and opacity of each of the matched elements
65 * are changed dynamically according to the specified speed.
67 * @example $("p").hide("slow");
69 * @example $("p").hide("slow",function(){
70 * alert("Animation Done.");
75 * @param String|Number speed A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
76 * @param Function callback (optional) A function to be executed whenever the animation completes.
78 * @see show(String|Number,Function)
80 hide: function(speed,callback){
83 height: "hide", width: "hide", opacity: "hide"
87 this.oldblock = this.oldblock || jQuery.css(this,"display");
88 if ( this.oldblock == "none" )
89 this.oldblock = "block";
90 this.style.display = "none";
94 // Save the old toggle function
95 _toggle: jQuery.fn.toggle,
98 * Toggles each of the set of matched elements. If they are shown,
99 * toggle makes them hidden. If they are hidden, toggle
102 * @example $("p").toggle()
103 * @before <p>Hello</p><p style="display: none">Hello Again</p>
104 * @result [ <p style="display: none">Hello</p>, <p style="display: block">Hello Again</p> ]
110 toggle: function( fn, fn2 ){
112 this._toggle( fn, fn2 ) :
113 this.each(function(){
114 jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]
115 .apply( jQuery(this), arguments );
120 * Reveal all matched elements by adjusting their height and firing an
121 * optional callback after completion.
123 * Only the height is adjusted for this animation, causing all matched
124 * elements to be revealed in a "sliding" manner.
126 * @example $("p").slideDown("slow");
128 * @example $("p").slideDown("slow",function(){
129 * alert("Animation Done.");
134 * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
135 * @param Function callback (optional) A function to be executed whenever the animation completes.
137 * @see slideUp(String|Number,Function)
138 * @see slideToggle(String|Number,Function)
140 slideDown: function(speed,callback){
141 return this.animate({height: "show"}, speed, callback);
145 * Hide all matched elements by adjusting their height and firing an
146 * optional callback after completion.
148 * Only the height is adjusted for this animation, causing all matched
149 * elements to be hidden in a "sliding" manner.
151 * @example $("p").slideUp("slow");
153 * @example $("p").slideUp("slow",function(){
154 * alert("Animation Done.");
159 * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
160 * @param Function callback (optional) A function to be executed whenever the animation completes.
162 * @see slideDown(String|Number,Function)
163 * @see slideToggle(String|Number,Function)
165 slideUp: function(speed,callback){
166 return this.animate({height: "hide"}, speed, callback);
170 * Toggle the visibility of all matched elements by adjusting their height and firing an
171 * optional callback after completion.
173 * Only the height is adjusted for this animation, causing all matched
174 * elements to be hidden in a "sliding" manner.
176 * @example $("p").slideToggle("slow");
178 * @example $("p").slideToggle("slow",function(){
179 * alert("Animation Done.");
184 * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
185 * @param Function callback (optional) A function to be executed whenever the animation completes.
187 * @see slideDown(String|Number,Function)
188 * @see slideUp(String|Number,Function)
190 slideToggle: function(speed, callback){
191 return this.each(function(){
192 var state = jQuery(this).is(":hidden") ? "show" : "hide";
193 jQuery(this).animate({height: state}, speed, callback);
198 * Fade in all matched elements by adjusting their opacity and firing an
199 * optional callback after completion.
201 * Only the opacity is adjusted for this animation, meaning that
202 * all of the matched elements should already have some form of height
203 * and width associated with them.
205 * @example $("p").fadeIn("slow");
207 * @example $("p").fadeIn("slow",function(){
208 * alert("Animation Done.");
213 * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
214 * @param Function callback (optional) A function to be executed whenever the animation completes.
216 * @see fadeOut(String|Number,Function)
217 * @see fadeTo(String|Number,Number,Function)
219 fadeIn: function(speed, callback){
220 return this.animate({opacity: "show"}, speed, callback);
224 * Fade out all matched elements by adjusting their opacity and firing an
225 * optional callback after completion.
227 * Only the opacity is adjusted for this animation, meaning that
228 * all of the matched elements should already have some form of height
229 * and width associated with them.
231 * @example $("p").fadeOut("slow");
233 * @example $("p").fadeOut("slow",function(){
234 * alert("Animation Done.");
239 * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
240 * @param Function callback (optional) A function to be executed whenever the animation completes.
242 * @see fadeIn(String|Number,Function)
243 * @see fadeTo(String|Number,Number,Function)
245 fadeOut: function(speed, callback){
246 return this.animate({opacity: "hide"}, speed, callback);
250 * Fade the opacity of all matched elements to a specified opacity and firing an
251 * optional callback after completion.
253 * Only the opacity is adjusted for this animation, meaning that
254 * all of the matched elements should already have some form of height
255 * and width associated with them.
257 * @example $("p").fadeTo("slow", 0.5);
259 * @example $("p").fadeTo("slow", 0.5, function(){
260 * alert("Animation Done.");
265 * @param String|Number speed A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
266 * @param Number opacity The opacity to fade to (a number from 0 to 1).
267 * @param Function callback (optional) A function to be executed whenever the animation completes.
269 * @see fadeIn(String|Number,Function)
270 * @see fadeOut(String|Number,Function)
272 fadeTo: function(speed,to,callback){
273 return this.animate({opacity: to}, speed, callback);
277 * A function for making your own, custom, animations. The key aspect of
278 * this function is the object of style properties that will be animated,
279 * and to what end. Each key within the object represents a style property
280 * that will also be animated (for example: "height", "top", or "opacity").
282 * The value associated with the key represents to what end the property
283 * will be animated. If a number is provided as the value, then the style
284 * property will be transitioned from its current state to that new number.
285 * Oterwise if the string "hide", "show", or "toggle" is provided, a default
286 * animation will be constructed for that property.
288 * @example $("p").animate({
289 * height: 'toggle', opacity: 'toggle'
292 * @example $("p").animate({
293 * left: 50, opacity: 'show'
296 * @example $("p").animate({
298 * }, "slow", "easein");
299 * @desc An example of using an 'easing' function to provide a different style of animation. This will only work if you have a plugin that provides this easing function (Only 'linear' is provided by default, with jQuery).
303 * @param Hash params A set of style attributes that you wish to animate, and to what end.
304 * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
305 * @param String easing (optional) The name of the easing effect that you want to use (Plugin Required).
306 * @param Function callback (optional) A function to be executed whenever the animation completes.
309 animate: function( prop, speed, easing, callback ) {
310 return this.queue(function(){
312 this.curAnim = jQuery.extend({}, prop);
313 var opt = jQuery.speed(speed, easing, callback);
315 for ( var p in prop ) {
316 var e = new jQuery.fx( this, opt, p );
317 if ( prop[p].constructor == Number )
318 e.custom( e.cur(), prop[p] );
320 e[ prop[p] ]( prop );
330 queue: function(type,fn){
336 return this.each(function(){
340 if ( !this.queue[type] )
341 this.queue[type] = [];
343 this.queue[type].push( fn );
345 if ( this.queue[type].length == 1 )
354 speed: function(speed, easing, fn) {
355 var opt = speed.constructor == Object ? speed : {
356 complete: fn || !fn && easing ||
357 speed.constructor == Function && speed,
359 easing: fn && easing || easing && easing.constructor != Function && easing
362 opt.duration = (opt.duration.constructor == Number ?
364 { slow: 600, fast: 200 }[opt.duration]) || 400;
367 opt.oldComplete = opt.complete;
368 opt.complete = function(){
369 jQuery.dequeue(this, "fx");
370 if ( opt.oldComplete && opt.oldComplete.constructor == Function )
371 opt.oldComplete.apply( this );
381 dequeue: function(elem,type){
384 if ( elem.queue && elem.queue[type] ) {
386 elem.queue[type].shift();
389 var f = elem.queue[type][0];
391 if ( f ) f.apply( elem );
396 * I originally wrote fx() as a clone of moo.fx and in the process
397 * of making it small in size the code became illegible to sane
398 * people. You've been warned.
401 fx: function( elem, options, prop ){
408 // Store display property
409 var oldDisplay = jQuery.css(elem, 'display');
410 // Set display property to block for animation
412 // Make sure that nothing sneaks out
413 y.overflow = "hidden";
415 // Simple function for setting a style value
418 options.step.apply( elem, [ z.now ] );
420 if ( prop == "opacity" )
421 jQuery.attr(y, "opacity", z.now); // Let attr handle opacity
422 else if ( parseInt(z.now) ) // My hate for IE will never die
423 y[prop] = parseInt(z.now) + "px";
426 // Figure out the maximum number to run to
428 return parseFloat( jQuery.css(elem,prop) );
431 // Get the current size
433 var r = parseFloat( jQuery.curCSS(elem, prop) );
434 return r && r > -10000 ? r : z.max();
437 // Start an animation from one number to another
438 z.custom = function(from,to){
439 z.startTime = (new Date()).getTime();
443 z.timer = setInterval(function(){
448 // Simple 'show' function
450 if ( !elem.orig ) elem.orig = {};
452 // Remember where we started, so that we can go back to it later
453 elem.orig[prop] = this.cur();
457 // Begin the animation
458 z.custom(0, elem.orig[prop]);
460 // Stupid IE, look what you made me do
461 if ( prop != "opacity" )
465 // Simple 'hide' function
467 if ( !elem.orig ) elem.orig = {};
469 // Remember where we started, so that we can go back to it later
470 elem.orig[prop] = this.cur();
474 // Begin the animation
475 z.custom(elem.orig[prop], 0);
478 //Simple 'toggle' function
479 z.toggle = function() {
480 if ( !elem.orig ) elem.orig = {};
482 // Remember where we started, so that we can go back to it later
483 elem.orig[prop] = this.cur();
485 if(oldDisplay == 'none') {
488 // Stupid IE, look what you made me do
489 if ( prop != "opacity" )
492 // Begin the animation
493 z.custom(0, elem.orig[prop]);
497 // Begin the animation
498 z.custom(elem.orig[prop], 0);
502 // Each step of an animation
503 z.step = function(firstNum, lastNum){
504 var t = (new Date()).getTime();
506 if (t > options.duration + z.startTime) {
508 clearInterval(z.timer);
514 if (elem.curAnim) elem.curAnim[ prop ] = true;
517 for ( var i in elem.curAnim )
518 if ( elem.curAnim[i] !== true )
522 // Reset the overflow
526 y.display = oldDisplay;
527 if (jQuery.css(elem, 'display') == 'none')
530 // Hide the element if the "hide" operation was done
534 // Reset the properties, if the item has been hidden or shown
535 if ( options.hide || options.show )
536 for ( var p in elem.curAnim )
538 jQuery.attr(y, p, elem.orig[p]);
543 // If a callback was provided, execute it
544 if ( done && options.complete && options.complete.constructor == Function )
545 // Execute the complete function
546 options.complete.apply( elem );
548 var n = t - this.startTime;
549 // Figure out where in the animation we are and set the number
550 var p = n / options.duration;
552 // If the easing function exists, then use it
553 z.now = options.easing && jQuery.easing[options.easing] ?
554 jQuery.easing[options.easing](p, n, firstNum, (lastNum-firstNum), options.duration) :
555 // else use default linear easing
556 ((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;
558 // Perform the next step of the animation