jquery/fx/fx.js

489 lines
14 KiB
JavaScript

jQuery.fn.extend({
// overwrite the old show method
_show: jQuery.fn.show,
/**
* Show all matched elements using a graceful animation.
* The height, width, and opacity of each of the matched elements
* are changed dynamically according to the specified speed.
*
* @example $("p").show("slow");
*
* @name show
* @type jQuery
* @param Object 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).
*/
/**
* Show all matched elements using a graceful animation and firing a callback
* function after completion.
* The height, width, and opacity of each of the matched elements
* are changed dynamically according to the specified speed.
*
* @example $("p").show("slow",function(){
* alert("Animation Done.");
* });
*
* @name show
* @type jQuery
* @param Object 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).
* @param Function callback A function to be executed whenever the animation completes.
*/
show: function(speed,callback){
return speed ? this.animate({
height: "show", width: "show", opacity: "show"
}, speed, callback) : this._show();
},
// Overwrite the old hide method
_hide: jQuery.fn.hide,
/**
* Hide all matched elements using a graceful animation.
* The height, width, and opacity of each of the matched elements
* are changed dynamically according to the specified speed.
*
* @example $("p").hide("slow");
*
* @name hide
* @type jQuery
* @param Object 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).
*/
/**
* Hide all matched elements using a graceful animation and firing a callback
* function after completion.
* The height, width, and opacity of each of the matched elements
* are changed dynamically according to the specified speed.
*
* @example $("p").hide("slow",function(){
* alert("Animation Done.");
* });
*
* @name hide
* @type jQuery
* @param Object 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).
* @param Function callback A function to be executed whenever the animation completes.
*/
hide: function(speed,callback){
return speed ? this.animate({
height: "hide", width: "hide", opacity: "hide"
}, speed, callback) : this._hide();
},
/**
* Reveal all matched elements by adjusting their height.
* Only the height is adjusted for this animation, causing all matched
* elements to be revealed in a "sliding" manner.
*
* @example $("p").slideDown("slow");
*
* @name slideDown
* @type jQuery
* @param Object 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).
*/
/**
* Reveal all matched elements by adjusting their height and firing a callback
* function after completion.
* Only the height is adjusted for this animation, causing all matched
* elements to be revealed in a "sliding" manner.
*
* @example $("p").slideDown("slow",function(){
* alert("Animation Done.");
* });
*
* @name slideDown
* @type jQuery
* @param Object 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).
* @param Function callback A function to be executed whenever the animation completes.
*/
slideDown: function(speed,callback){
return this.animate({height: "show"}, speed, callback);
},
/**
* Hide all matched elements by adjusting their height.
* Only the height is adjusted for this animation, causing all matched
* elements to be hidden in a "sliding" manner.
*
* @example $("p").slideUp("slow");
*
* @name slideUp
* @type jQuery
* @param Object 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).
*/
/**
* Hide all matched elements by adjusting their height and firing a callback
* function after completion.
* Only the height is adjusted for this animation, causing all matched
* elements to be hidden in a "sliding" manner.
*
* @example $("p").slideUp("slow",function(){
* alert("Animation Done.");
* });
*
* @name slideUp
* @type jQuery
* @param Object 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).
* @param Function callback A function to be executed whenever the animation completes.
*/
slideUp: function(speed,callback){
return this.animate({height: "hide"}, speed, callback);
},
/**
* Fade in all matched elements by adjusting their opacity.
* Only the opacity is adjusted for this animation, meaning that
* all of the matched elements should already have some form of height
* and width associated with them.
*
* @example $("p").fadeIn("slow");
*
* @name fadeIn
* @type jQuery
* @param Object 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).
*/
/**
* Fade in all matched elements by adjusting their opacity and firing a
* callback function after completion.
* Only the opacity is adjusted for this animation, meaning that
* all of the matched elements should already have some form of height
* and width associated with them.
*
* @example $("p").fadeIn("slow",function(){
* alert("Animation Done.");
* });
*
* @name fadeIn
* @type jQuery
* @param Object 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).
* @param Function callback A function to be executed whenever the animation completes.
*/
fadeIn: function(speed,callback){
return this.animate({opacity: "show"}, speed, callback);
},
/**
* Fade out all matched elements by adjusting their opacity.
* Only the opacity is adjusted for this animation, meaning that
* all of the matched elements should already have some form of height
* and width associated with them.
*
* @example $("p").fadeOut("slow");
*
* @name fadeOut
* @type jQuery
* @param Object 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).
*/
/**
* Fade out all matched elements by adjusting their opacity and firing a
* callback function after completion.
* Only the opacity is adjusted for this animation, meaning that
* all of the matched elements should already have some form of height
* and width associated with them.
*
* @example $("p").fadeOut("slow",function(){
* alert("Animation Done.");
* });
*
* @name fadeOut
* @type jQuery
* @param Object 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).
* @param Function callback A function to be executed whenever the animation completes.
*/
fadeOut: function(speed,callback){
return this.animate({opacity: "hide"}, speed, callback);
},
/**
* Fade the opacity of all matched elements to a specified opacity.
* Only the opacity is adjusted for this animation, meaning that
* all of the matched elements should already have some form of height
* and width associated with them.
*
* @example $("p").fadeTo("slow", 0.5);
*
* @name fadeTo
* @type jQuery
* @param Object 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).
* @param Number opacity The opacity to fade to (a number from 0 to 1).
*/
/**
* Fade the opacity of all matched elements to a specified opacity and
* firing a callback function after completion.
* Only the opacity is adjusted for this animation, meaning that
* all of the matched elements should already have some form of height
* and width associated with them.
*
* @example $("p").fadeTo("slow", 0.5, function(){
* alert("Animation Done.");
* });
*
* @name fadeTo
* @type jQuery
* @param Object 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).
* @param Number opacity The opacity to fade to (a number from 0 to 1).
* @param Function callback A function to be executed whenever the animation completes.
*/
fadeTo: function(speed,to,callback){
return this.animate({opacity: to}, speed, callback);
},
/**
* @private
*/
animate: function(prop,speed,callback) {
return this.queue(function(){
var i = 0;
for ( var p in prop ) {
var e = new jQuery.fx( this, jQuery.speed(speed,callback,i++), p );
if ( prop[p].constructor == Number )
e.custom( e.cur(), prop[p] );
else
e[ prop[p] ]( prop );
}
});
},
/**
*
* @private
*/
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 )
fn.apply(this);
});
}
});
jQuery.extend({
setAuto: function(e,p) {
if ( e.notAuto ) return;
if ( p == "height" && e.scrollHeight != parseInt(jQuery.curCSS(e,p)) ) return;
if ( p == "width" && e.scrollWidth != parseInt(jQuery.curCSS(e,p)) ) return;
// Remember the original height
var a = e.style[p];
// Figure out the size of the height right now
var o = jQuery.curCSS(e,p,1);
if ( p == "height" && e.scrollHeight != o ||
p == "width" && e.scrollWidth != o ) return;
// Set the height to auto
e.style[p] = e.currentStyle ? "" : "auto";
// See what the size of "auto" is
var n = jQuery.curCSS(e,p,1);
// Revert back to the original size
if ( o != n && n != "auto" ) {
e.style[p] = a;
e.notAuto = true;
}
},
speed: function(s,o,i) {
o = o || {};
if ( o.constructor == Function )
o = { complete: o };
var ss = { slow: 600, fast: 200 };
o.duration = (s && s.constructor == Number ? s : ss[s]) || 400;
// Queueing
o.oldComplete = o.complete;
o.complete = function(){
jQuery.dequeue(this, "fx");
if ( o.oldComplete && o.oldComplete.constructor == Function )
o.oldComplete.apply( this );
};
if ( i > 0 )
o.complete = null;
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 ) f.apply( elem );
}
},
/*
* 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( elem, options, prop ){
var z = this;
// The users options
z.o = {
duration: options.duration || 400,
complete: options.complete
};
// The element
z.el = elem;
// The styles
var y = z.el.style;
// Simple function for setting a style value
z.a = function(){
if ( prop == "opacity" ) {
if (z.now == 1) z.now = 0.9999;
if (window.ActiveXObject)
y.filter = "alpha(opacity=" + z.now*100 + ")";
else
y.opacity = z.now;
// My hate for IE will never die
} else if ( parseInt(z.now) )
y[prop] = parseInt(z.now) + "px";
y.display = "block";
};
// Figure out the maximum number to run to
z.max = function(){
return parseFloat( jQuery.css(z.el,prop) );
};
// Get the current size
z.cur = function(){
return parseFloat( jQuery.curCSS(z.el, prop) ) || z.max();
};
// 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( p ){
if ( !z.el.orig ) z.el.orig = {};
// Remember where we started, so that we can go back to it later
z.el.orig[prop] = this.cur();
z.custom( 0, z.el.orig[prop] );
// Stupid IE, look what you made me do
if ( prop != "opacity" )
y[prop] = "1px";
};
// Simple 'hide' function
z.hide = function(){
if ( !z.el.orig ) z.el.orig = {};
// Remember where we started, so that we can go back to it later
z.el.orig[prop] = this.cur();
z.o.hide = true;
// Begin the animation
z.custom(z.cur(),0);
};
// IE has trouble with opacity if it does not have layout
if ( jQuery.browser.msie && !z.el.currentStyle.hasLayout )
y.zoom = "1";
// Remember the overflow of the element
if ( !z.el.oldOverlay )
z.el.oldOverflow = jQuery.css( z.el, "overflow" );
// Make sure that nothing sneaks out
if ( z.el.oldOverlay == "visible" )
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();
// Hide the element if the "hide" operation was done
if ( z.o.hide ) y.display = 'none';
// Reset the overflow
y.overflow = z.el.oldOverflow;
// If a callback was provided, execute it
if( z.o.complete && z.o.complete.constructor == Function )
// Execute the complete function
z.o.complete.apply( z.el );
// Reset the property, if the item has been hidden
if ( z.o.hide )
y[ prop ] = z.el.orig[ prop ].constructor == Number && prop != "opacity" ?
z.el.orig[prop] + "px" : z.el.orig[prop];
// set its height and/or width to auto
jQuery.setAuto( z.el, prop );
} 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();
}
};
}
});