mirror of
https://github.com/jquery/jquery.git
synced 2024-11-23 02:54:22 +00:00
525 lines
13 KiB
JavaScript
525 lines
13 KiB
JavaScript
(function( jQuery ) {
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var elemdisplay = {},
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rfxtypes = /^(?:toggle|show|hide)$/,
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rfxnum = /^([+\-]=)?([\d+.\-]+)([a-z%]*)$/i,
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timerId,
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fxAttrs = [
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// height animations
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[ "height", "marginTop", "marginBottom", "paddingTop", "paddingBottom" ],
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// width animations
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[ "width", "marginLeft", "marginRight", "paddingLeft", "paddingRight" ],
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// opacity animations
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[ "opacity" ]
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];
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jQuery.fn.extend({
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show: function( speed, easing, callback ) {
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var elem, display;
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if ( speed || speed === 0 ) {
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return this.animate( genFx("show", 3), speed, easing, callback);
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} else {
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for ( var i = 0, j = this.length; i < j; i++ ) {
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elem = this[i];
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display = elem.style.display;
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// Reset the inline display of this element to learn if it is
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// being hidden by cascaded rules or not
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if ( !jQuery.data(elem, "olddisplay") && display === "none" ) {
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display = elem.style.display = "";
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}
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// Set elements which have been overridden with display: none
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// in a stylesheet to whatever the default browser style is
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// for such an element
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if ( display === "" && jQuery.css( elem, "display" ) === "none" ) {
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jQuery.data(elem, "olddisplay", defaultDisplay(elem.nodeName));
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}
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}
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// Set the display of most of the elements in a second loop
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// to avoid the constant reflow
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for ( i = 0; i < j; i++ ) {
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elem = this[i];
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display = elem.style.display;
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if ( display === "" || display === "none" ) {
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elem.style.display = jQuery.data(elem, "olddisplay") || "";
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}
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}
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return this;
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}
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},
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hide: function( speed, easing, callback ) {
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if ( speed || speed === 0 ) {
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return this.animate( genFx("hide", 3), speed, easing, callback);
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} else {
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for ( var i = 0, j = this.length; i < j; i++ ) {
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var display = jQuery.css( this[i], "display" );
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if ( display !== "none" && !jQuery.data( this[i], "olddisplay" ) ) {
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jQuery.data( this[i], "olddisplay", display );
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}
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}
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// Set the display of the elements in a second loop
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// to avoid the constant reflow
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for ( i = 0; i < j; i++ ) {
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this[i].style.display = "none";
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}
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return this;
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}
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},
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// Save the old toggle function
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_toggle: jQuery.fn.toggle,
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toggle: function( fn, fn2, callback ) {
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var bool = typeof fn === "boolean";
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if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {
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this._toggle.apply( this, arguments );
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} else if ( fn == null || bool ) {
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this.each(function() {
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var state = bool ? fn : jQuery(this).is(":hidden");
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jQuery(this)[ state ? "show" : "hide" ]();
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});
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} else {
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this.animate(genFx("toggle", 3), fn, fn2, callback);
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}
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return this;
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},
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fadeTo: function( speed, to, easing, callback ) {
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return this.filter(":hidden").css("opacity", 0).show().end()
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.animate({opacity: to}, speed, easing, callback);
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},
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animate: function( prop, speed, easing, callback ) {
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var optall = jQuery.speed(speed, easing, callback);
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if ( jQuery.isEmptyObject( prop ) ) {
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return this.each( optall.complete );
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}
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return this[ optall.queue === false ? "each" : "queue" ](function() {
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// XXX 'this' does not always have a nodeName when running the
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// test suite
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var opt = jQuery.extend({}, optall), p,
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isElement = this.nodeType === 1,
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hidden = isElement && jQuery(this).is(":hidden"),
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self = this;
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for ( p in prop ) {
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var name = jQuery.camelCase( p );
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if ( p !== name ) {
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prop[ name ] = prop[ p ];
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delete prop[ p ];
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p = name;
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}
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if ( prop[p] === "hide" && hidden || prop[p] === "show" && !hidden ) {
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return opt.complete.call(this);
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}
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if ( isElement && ( p === "height" || p === "width" ) ) {
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// Make sure that nothing sneaks out
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// Record all 3 overflow attributes because IE does not
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// change the overflow attribute when overflowX and
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// overflowY are set to the same value
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opt.overflow = [ this.style.overflow, this.style.overflowX, this.style.overflowY ];
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// Set display property to inline-block for height/width
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// animations on inline elements that are having width/height
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// animated
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if ( jQuery.css( this, "display" ) === "inline" &&
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jQuery.css( this, "float" ) === "none" ) {
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if ( !jQuery.support.inlineBlockNeedsLayout ) {
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this.style.display = "inline-block";
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} else {
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var display = defaultDisplay(this.nodeName);
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// inline-level elements accept inline-block;
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// block-level elements need to be inline with layout
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if ( display === "inline" ) {
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this.style.display = "inline-block";
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} else {
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this.style.display = "inline";
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this.style.zoom = 1;
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}
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}
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}
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}
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if ( jQuery.isArray( prop[p] ) ) {
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// Create (if needed) and add to specialEasing
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(opt.specialEasing = opt.specialEasing || {})[p] = prop[p][1];
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prop[p] = prop[p][0];
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}
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}
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if ( opt.overflow != null ) {
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this.style.overflow = "hidden";
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}
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opt.curAnim = jQuery.extend({}, prop);
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jQuery.each( prop, function( name, val ) {
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var e = new jQuery.fx( self, opt, name );
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if ( rfxtypes.test(val) ) {
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e[ val === "toggle" ? hidden ? "show" : "hide" : val ]( prop );
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} else {
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var parts = rfxnum.exec(val),
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start = e.cur() || 0;
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if ( parts ) {
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var end = parseFloat( parts[2] ),
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unit = parts[3] || "px";
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// We need to compute starting value
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if ( unit !== "px" ) {
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jQuery.style( self, name, (end || 1) + unit);
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start = ((end || 1) / e.cur()) * start;
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jQuery.style( self, name, start + unit);
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}
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// If a +=/-= token was provided, we're doing a relative animation
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if ( parts[1] ) {
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end = ((parts[1] === "-=" ? -1 : 1) * end) + start;
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}
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e.custom( start, end, unit );
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} else {
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e.custom( start, val, "" );
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}
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}
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});
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// For JS strict compliance
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return true;
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});
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},
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stop: function( clearQueue, gotoEnd ) {
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var timers = jQuery.timers;
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if ( clearQueue ) {
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this.queue([]);
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}
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this.each(function() {
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// go in reverse order so anything added to the queue during the loop is ignored
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for ( var i = timers.length - 1; i >= 0; i-- ) {
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if ( timers[i].elem === this ) {
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if (gotoEnd) {
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// force the next step to be the last
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timers[i](true);
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}
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timers.splice(i, 1);
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}
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}
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});
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// start the next in the queue if the last step wasn't forced
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if ( !gotoEnd ) {
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this.dequeue();
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}
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return this;
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}
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});
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function genFx( type, num ) {
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var obj = {};
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jQuery.each( fxAttrs.concat.apply([], fxAttrs.slice(0,num)), function() {
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obj[ this ] = type;
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});
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return obj;
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}
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// Generate shortcuts for custom animations
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jQuery.each({
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slideDown: genFx("show", 1),
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slideUp: genFx("hide", 1),
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slideToggle: genFx("toggle", 1),
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fadeIn: { opacity: "show" },
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fadeOut: { opacity: "hide" },
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fadeToggle: { opacity: "toggle" }
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}, function( name, props ) {
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jQuery.fn[ name ] = function( speed, easing, callback ) {
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return this.animate( props, speed, easing, callback );
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};
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});
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jQuery.extend({
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speed: function( speed, easing, fn ) {
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var opt = speed && typeof speed === "object" ? jQuery.extend({}, speed) : {
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complete: fn || !fn && easing ||
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jQuery.isFunction( speed ) && speed,
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duration: speed,
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easing: fn && easing || easing && !jQuery.isFunction(easing) && easing
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};
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opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
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opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[opt.duration] : jQuery.fx.speeds._default;
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// Queueing
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opt.old = opt.complete;
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opt.complete = function() {
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if ( opt.queue !== false ) {
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jQuery(this).dequeue();
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}
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if ( jQuery.isFunction( opt.old ) ) {
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opt.old.call( this );
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}
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};
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return opt;
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},
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easing: {
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linear: function( p, n, firstNum, diff ) {
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return firstNum + diff * p;
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},
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swing: function( p, n, firstNum, diff ) {
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return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
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}
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},
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timers: [],
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fx: function( elem, options, prop ) {
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this.options = options;
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this.elem = elem;
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this.prop = prop;
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if ( !options.orig ) {
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options.orig = {};
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}
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}
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});
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jQuery.fx.prototype = {
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// Simple function for setting a style value
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update: function() {
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if ( this.options.step ) {
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this.options.step.call( this.elem, this.now, this );
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}
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(jQuery.fx.step[this.prop] || jQuery.fx.step._default)( this );
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},
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// Get the current size
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cur: function() {
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if ( this.elem[this.prop] != null && (!this.elem.style || this.elem.style[this.prop] == null) ) {
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return this.elem[ this.prop ];
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}
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var r = parseFloat( jQuery.css( this.elem, this.prop ) );
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return r || 0;
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},
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// Start an animation from one number to another
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custom: function( from, to, unit ) {
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var self = this,
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fx = jQuery.fx;
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this.startTime = jQuery.now();
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this.start = from;
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this.end = to;
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this.unit = unit || this.unit || "px";
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this.now = this.start;
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this.pos = this.state = 0;
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function t( gotoEnd ) {
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return self.step(gotoEnd);
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}
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t.elem = this.elem;
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if ( t() && jQuery.timers.push(t) && !timerId ) {
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timerId = setInterval(fx.tick, fx.interval);
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}
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},
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// Simple 'show' function
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show: function() {
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// Remember where we started, so that we can go back to it later
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this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );
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this.options.show = true;
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// Begin the animation
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// Make sure that we start at a small width/height to avoid any
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// flash of content
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this.custom(this.prop === "width" || this.prop === "height" ? 1 : 0, this.cur());
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// Start by showing the element
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jQuery( this.elem ).show();
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},
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// Simple 'hide' function
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hide: function() {
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// Remember where we started, so that we can go back to it later
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this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );
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this.options.hide = true;
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// Begin the animation
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this.custom(this.cur(), 0);
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},
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// Each step of an animation
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step: function( gotoEnd ) {
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var t = jQuery.now(), done = true;
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if ( gotoEnd || t >= this.options.duration + this.startTime ) {
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this.now = this.end;
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this.pos = this.state = 1;
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this.update();
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this.options.curAnim[ this.prop ] = true;
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for ( var i in this.options.curAnim ) {
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if ( this.options.curAnim[i] !== true ) {
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done = false;
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}
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}
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if ( done ) {
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// Reset the overflow
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if ( this.options.overflow != null && !jQuery.support.shrinkWrapBlocks ) {
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var elem = this.elem,
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options = this.options;
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jQuery.each( [ "", "X", "Y" ], function (index, value) {
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elem.style[ "overflow" + value ] = options.overflow[index];
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} );
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}
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// Hide the element if the "hide" operation was done
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if ( this.options.hide ) {
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jQuery(this.elem).hide();
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}
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// Reset the properties, if the item has been hidden or shown
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if ( this.options.hide || this.options.show ) {
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for ( var p in this.options.curAnim ) {
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jQuery.style( this.elem, p, this.options.orig[p] );
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}
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}
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// Execute the complete function
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this.options.complete.call( this.elem );
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}
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return false;
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} else {
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var n = t - this.startTime;
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this.state = n / this.options.duration;
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// Perform the easing function, defaults to swing
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var specialEasing = this.options.specialEasing && this.options.specialEasing[this.prop];
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var defaultEasing = this.options.easing || (jQuery.easing.swing ? "swing" : "linear");
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this.pos = jQuery.easing[specialEasing || defaultEasing](this.state, n, 0, 1, this.options.duration);
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this.now = this.start + ((this.end - this.start) * this.pos);
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// Perform the next step of the animation
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this.update();
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}
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return true;
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}
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};
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jQuery.extend( jQuery.fx, {
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tick: function() {
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var timers = jQuery.timers;
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for ( var i = 0; i < timers.length; i++ ) {
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if ( !timers[i]() ) {
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timers.splice(i--, 1);
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}
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}
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if ( !timers.length ) {
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jQuery.fx.stop();
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}
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},
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interval: 13,
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stop: function() {
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clearInterval( timerId );
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timerId = null;
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},
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speeds: {
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slow: 600,
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fast: 200,
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// Default speed
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_default: 400
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},
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step: {
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opacity: function( fx ) {
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jQuery.style( fx.elem, "opacity", fx.now );
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},
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_default: function( fx ) {
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if ( fx.elem.style && fx.elem.style[ fx.prop ] != null ) {
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fx.elem.style[ fx.prop ] = (fx.prop === "width" || fx.prop === "height" ? Math.max(0, fx.now) : fx.now) + fx.unit;
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} else {
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fx.elem[ fx.prop ] = fx.now;
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}
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}
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}
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});
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if ( jQuery.expr && jQuery.expr.filters ) {
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jQuery.expr.filters.animated = function( elem ) {
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return jQuery.grep(jQuery.timers, function( fn ) {
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return elem === fn.elem;
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}).length;
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};
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}
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function defaultDisplay( nodeName ) {
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if ( !elemdisplay[ nodeName ] ) {
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var elem = jQuery("<" + nodeName + ">").appendTo("body"),
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display = elem.css("display");
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elem.remove();
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if ( display === "none" || display === "" ) {
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display = "block";
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}
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elemdisplay[ nodeName ] = display;
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}
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return elemdisplay[ nodeName ];
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}
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})( jQuery );
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