(function( jQuery ) {
var elemdisplay = {},
rfxtypes = /^(?:toggle|show|hide)$/,
rfxnum = /^([+\-]=)?([\d+.\-]+)([a-z%]*)$/i,
timerId,
fxAttrs = [
// height animations
[ "height", "marginTop", "marginBottom", "paddingTop", "paddingBottom" ],
// width animations
[ "width", "marginLeft", "marginRight", "paddingLeft", "paddingRight" ],
// opacity animations
[ "opacity" ]
];
jQuery.fn.extend({
show: function( speed, easing, callback ) {
var elem, display;
if ( speed || speed === 0 ) {
return this.animate( genFx("show", 3), speed, easing, callback);
} else {
for ( var i = 0, j = this.length; i < j; i++ ) {
elem = this[i];
display = elem.style.display;
// Reset the inline display of this element to learn if it is
// being hidden by cascaded rules or not
if ( !jQuery._data(elem, "olddisplay") && display === "none" ) {
display = elem.style.display = "";
}
// Set elements which have been overridden with display: none
// in a stylesheet to whatever the default browser style is
// for such an element
if ( display === "" && jQuery.css( elem, "display" ) === "none" ) {
jQuery._data(elem, "olddisplay", defaultDisplay(elem.nodeName));
}
}
// Set the display of most of the elements in a second loop
// to avoid the constant reflow
for ( i = 0; i < j; i++ ) {
elem = this[i];
display = elem.style.display;
if ( display === "" || display === "none" ) {
elem.style.display = jQuery._data(elem, "olddisplay") || "";
}
}
return this;
}
},
hide: function( speed, easing, callback ) {
if ( speed || speed === 0 ) {
return this.animate( genFx("hide", 3), speed, easing, callback);
} else {
for ( var i = 0, j = this.length; i < j; i++ ) {
var display = jQuery.css( this[i], "display" );
if ( display !== "none" && !jQuery._data( this[i], "olddisplay" ) ) {
jQuery._data( this[i], "olddisplay", display );
}
}
// Set the display of the elements in a second loop
// to avoid the constant reflow
for ( i = 0; i < j; i++ ) {
this[i].style.display = "none";
}
return this;
}
},
// Save the old toggle function
_toggle: jQuery.fn.toggle,
toggle: function( fn, fn2, callback ) {
var bool = typeof fn === "boolean";
if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {
this._toggle.apply( this, arguments );
} else if ( fn == null || bool ) {
this.each(function() {
var state = bool ? fn : jQuery(this).is(":hidden");
jQuery(this)[ state ? "show" : "hide" ]();
});
} else {
this.animate(genFx("toggle", 3), fn, fn2, callback);
}
return this;
},
fadeTo: function( speed, to, easing, callback ) {
return this.filter(":hidden").css("opacity", 0).show().end()
.animate({opacity: to}, speed, easing, callback);
},
animate: function( prop, speed, easing, callback ) {
var optall = jQuery.speed(speed, easing, callback);
if ( jQuery.isEmptyObject( prop ) ) {
return this.each( optall.complete );
}
return this[ optall.queue === false ? "each" : "queue" ](function() {
// XXX 'this' does not always have a nodeName when running the
// test suite
var opt = jQuery.extend({}, optall), p,
isElement = this.nodeType === 1,
hidden = isElement && jQuery(this).is(":hidden"),
self = this;
for ( p in prop ) {
var name = jQuery.camelCase( p );
if ( p !== name ) {
prop[ name ] = prop[ p ];
delete prop[ p ];
p = name;
}
if ( prop[p] === "hide" && hidden || prop[p] === "show" && !hidden ) {
return opt.complete.call(this);
}
if ( isElement && ( p === "height" || p === "width" ) ) {
// Make sure that nothing sneaks out
// Record all 3 overflow attributes because IE does not
// change the overflow attribute when overflowX and
// overflowY are set to the same value
opt.overflow = [ this.style.overflow, this.style.overflowX, this.style.overflowY ];
// Set display property to inline-block for height/width
// animations on inline elements that are having width/height
// animated
if ( jQuery.css( this, "display" ) === "inline" &&
jQuery.css( this, "float" ) === "none" ) {
if ( !jQuery.support.inlineBlockNeedsLayout ) {
this.style.display = "inline-block";
} else {
var display = defaultDisplay(this.nodeName);
// inline-level elements accept inline-block;
// block-level elements need to be inline with layout
if ( display === "inline" ) {
this.style.display = "inline-block";
} else {
this.style.display = "inline";
this.style.zoom = 1;
}
}
}
}
if ( jQuery.isArray( prop[p] ) ) {
// Create (if needed) and add to specialEasing
(opt.specialEasing = opt.specialEasing || {})[p] = prop[p][1];
prop[p] = prop[p][0];
}
}
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 ( rfxtypes.test(val) ) {
e[ val === "toggle" ? hidden ? "show" : "hide" : val ]( prop );
} else {
var parts = rfxnum.exec(val),
start = e.cur();
if ( parts ) {
var end = parseFloat( parts[2] ),
unit = parts[3] || ( jQuery.cssNumber[ name ] ? "" : "px" );
// We need to compute starting value
if ( unit !== "px" ) {
jQuery.style( self, name, (end || 1) + unit);
start = ((end || 1) / e.cur()) * start;
jQuery.style( self, name, start + unit);
}
// If a +=/-= token was provided, we're doing a relative animation
if ( parts[1] ) {
end = ((parts[1] === "-=" ? -1 : 1) * end) + start;
}
e.custom( start, end, unit );
} else {
e.custom( start, val, "" );
}
}
});
// For JS strict compliance
return true;
});
},
stop: function( clearQueue, gotoEnd ) {
var timers = jQuery.timers;
if ( clearQueue ) {
this.queue([]);
}
this.each(function() {
// go in reverse order so anything added to the queue during the loop is ignored
for ( var i = timers.length - 1; i >= 0; i-- ) {
if ( timers[i].elem === this ) {
if (gotoEnd) {
// force the next step to be the last
timers[i](true);
}
timers.splice(i, 1);
}
}
});
// start the next in the queue if the last step wasn't forced
if ( !gotoEnd ) {
this.dequeue();
}
return this;
}
});
function genFx( type, num ) {
var obj = {};
jQuery.each( fxAttrs.concat.apply([], fxAttrs.slice(0,num)), function() {
obj[ this ] = type;
});
return obj;
}
// Generate shortcuts for custom animations
jQuery.each({
slideDown: genFx("show", 1),
slideUp: genFx("hide", 1),
slideToggle: genFx("toggle", 1),
fadeIn: { opacity: "show" },
fadeOut: { opacity: "hide" },
fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
jQuery.fn[ name ] = function( speed, easing, callback ) {
return this.animate( props, speed, easing, callback );
};
});
jQuery.extend({
speed: function( speed, easing, fn ) {
var opt = speed && typeof speed === "object" ? jQuery.extend({}, speed) : {
complete: fn || !fn && easing ||
jQuery.isFunction( speed ) && speed,
duration: speed,
easing: fn && easing || easing && !jQuery.isFunction(easing) && easing
};
opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[opt.duration] : jQuery.fx.speeds._default;
// Queueing
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: [],
fx: function( elem, options, prop ) {
this.options = options;
this.elem = elem;
this.prop = prop;
if ( !options.orig ) {
options.orig = {};
}
}
});
jQuery.fx.prototype = {
// Simple function for setting a style value
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 );
},
// Get the current size
cur: function() {
if ( this.elem[this.prop] != null && (!this.elem.style || this.elem.style[this.prop] == null) ) {
return this.elem[ this.prop ];
}
var parsed,
r = jQuery.css( this.elem, this.prop );
// Empty strings, null, undefined and "auto" are converted to 0,
// complex values such as "rotate(1rad)" are returned as is,
// simple values such as "10px" are parsed to Float.
return isNaN( parsed = parseFloat( r ) ) ? !r || r === "auto" ? 0 : r : parsed;
},
// Start an animation from one number to another
custom: function( from, to, unit ) {
var self = this,
fx = jQuery.fx;
this.startTime = jQuery.now();
this.start = from;
this.end = to;
this.unit = unit || this.unit || ( jQuery.cssNumber[ this.prop ] ? "" : "px" );
this.now = this.start;
this.pos = this.state = 0;
function t( gotoEnd ) {
return self.step(gotoEnd);
}
t.elem = this.elem;
if ( t() && jQuery.timers.push(t) && !timerId ) {
timerId = setInterval(fx.tick, fx.interval);
}
},
// Simple 'show' function
show: function() {
// Remember where we started, so that we can go back to it later
this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );
this.options.show = true;
// Begin the animation
// Make sure that we start at a small width/height to avoid any
// flash of content
this.custom(this.prop === "width" || this.prop === "height" ? 1 : 0, this.cur());
// Start by showing the element
jQuery( this.elem ).show();
},
// Simple 'hide' function
hide: function() {
// Remember where we started, so that we can go back to it later
this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );
this.options.hide = true;
// Begin the animation
this.custom(this.cur(), 0);
},
// Each step of an animation
step: function( gotoEnd ) {
var t = jQuery.now(), done = true;
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;
for ( var i in this.options.curAnim ) {
if ( this.options.curAnim[i] !== true ) {
done = false;
}
}
if ( done ) {
// Reset the overflow
if ( this.options.overflow != null && !jQuery.support.shrinkWrapBlocks ) {
var elem = this.elem,
options = this.options;
jQuery.each( [ "", "X", "Y" ], function (index, value) {
elem.style[ "overflow" + value ] = options.overflow[index];
} );
}
// Hide the element if the "hide" operation was done
if ( this.options.hide ) {
jQuery(this.elem).hide();
}
// Reset the properties, if the item has been hidden or shown
if ( this.options.hide || this.options.show ) {
for ( var p in this.options.curAnim ) {
jQuery.style( this.elem, p, this.options.orig[p] );
}
}
// Execute the complete function
this.options.complete.call( this.elem );
}
return false;
} else {
var n = t - this.startTime;
this.state = n / this.options.duration;
// Perform the easing function, defaults to swing
var specialEasing = this.options.specialEasing && this.options.specialEasing[this.prop];
var defaultEasing = this.options.easing || (jQuery.easing.swing ? "swing" : "linear");
this.pos = jQuery.easing[specialEasing || defaultEasing](this.state, n, 0, 1, this.options.duration);
this.now = this.start + ((this.end - this.start) * this.pos);
// Perform the next step of the animation
this.update();
}
return true;
}
};
jQuery.extend( jQuery.fx, {
tick: function() {
var timers = jQuery.timers;
for ( var i = 0; i < timers.length; i++ ) {
if ( !timers[i]() ) {
timers.splice(i--, 1);
}
}
if ( !timers.length ) {
jQuery.fx.stop();
}
},
interval: 13,
stop: function() {
clearInterval( timerId );
timerId = null;
},
speeds: {
slow: 600,
fast: 200,
// Default speed
_default: 400
},
step: {
opacity: function( fx ) {
jQuery.style( fx.elem, "opacity", fx.now );
},
_default: function( fx ) {
if ( fx.elem.style && fx.elem.style[ fx.prop ] != null ) {
fx.elem.style[ fx.prop ] = (fx.prop === "width" || fx.prop === "height" ? Math.max(0, fx.now) : fx.now) + fx.unit;
} else {
fx.elem[ fx.prop ] = fx.now;
}
}
}
});
if ( jQuery.expr && jQuery.expr.filters ) {
jQuery.expr.filters.animated = function( elem ) {
return jQuery.grep(jQuery.timers, function( fn ) {
return elem === fn.elem;
}).length;
};
}
function defaultDisplay( nodeName ) {
if ( !elemdisplay[ nodeName ] ) {
var elem = jQuery("<" + nodeName + ">").appendTo("body"),
display = elem.css("display");
elem.remove();
if ( display === "none" || display === "" ) {
display = "block";
}
elemdisplay[ nodeName ] = display;
}
return elemdisplay[ nodeName ];
}
})( jQuery );
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