mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-12-07 06:14:24 +00:00
6fd43da409
jQuery now returns `null` for empty attributes instead of `undefined`
Ref gh-1516
(cherry picked from commit 12643739a9)
337 lines
8.2 KiB
JavaScript
337 lines
8.2 KiB
JavaScript
/*!
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* jQuery UI Core @VERSION
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* http://jqueryui.com
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*
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* Copyright jQuery Foundation and other contributors
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* Released under the MIT license.
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* http://jquery.org/license
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*
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* http://api.jqueryui.com/category/ui-core/
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*/
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(function( factory ) {
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if ( typeof define === "function" && define.amd ) {
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// AMD. Register as an anonymous module.
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define( [ "jquery" ], factory );
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} else {
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// Browser globals
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factory( jQuery );
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}
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}(function( $ ) {
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// $.ui might exist from components with no dependencies, e.g., $.ui.position
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$.ui = $.ui || {};
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$.extend( $.ui, {
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version: "@VERSION",
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keyCode: {
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BACKSPACE: 8,
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COMMA: 188,
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DELETE: 46,
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DOWN: 40,
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END: 35,
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ENTER: 13,
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ESCAPE: 27,
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HOME: 36,
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LEFT: 37,
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PAGE_DOWN: 34,
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PAGE_UP: 33,
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PERIOD: 190,
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RIGHT: 39,
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SPACE: 32,
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TAB: 9,
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UP: 38
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},
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// Internal use only
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safeActiveElement: function( document ) {
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var activeElement;
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// Support: IE 9 only
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// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
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try {
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activeElement = document.activeElement;
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} catch ( error ) {
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activeElement = document.body;
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}
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// Support: IE 11 only
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// IE11 returns a seemingly empty object in some cases when accessing
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// document.activeElement from an <iframe>
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if ( !activeElement.nodeName ) {
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activeElement = document.body;
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}
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return activeElement;
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},
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// Internal use only
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safeBlur: function( element ) {
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// Support: IE9 - 10 only
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// If the <body> is blurred, IE will switch windows, see #9420
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if ( element && element.nodeName.toLowerCase() !== "body" ) {
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$( element ).blur();
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}
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}
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});
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// plugins
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$.fn.extend({
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scrollParent: function( includeHidden ) {
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var position = this.css( "position" ),
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excludeStaticParent = position === "absolute",
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overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
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scrollParent = this.parents().filter( function() {
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var parent = $( this );
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if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
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return false;
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}
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return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) + parent.css( "overflow-x" ) );
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}).eq( 0 );
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return position === "fixed" || !scrollParent.length ? $( this[ 0 ].ownerDocument || document ) : scrollParent;
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},
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uniqueId: (function() {
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var uuid = 0;
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return function() {
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return this.each(function() {
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if ( !this.id ) {
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this.id = "ui-id-" + ( ++uuid );
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}
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});
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};
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})(),
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removeUniqueId: function() {
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return this.each(function() {
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if ( /^ui-id-\d+$/.test( this.id ) ) {
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$( this ).removeAttr( "id" );
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}
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});
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}
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});
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// selectors
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function focusable( element, hasTabindex ) {
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var map, mapName, img,
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nodeName = element.nodeName.toLowerCase();
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if ( "area" === nodeName ) {
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map = element.parentNode;
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mapName = map.name;
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if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
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return false;
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}
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img = $( "img[usemap='#" + mapName + "']" )[ 0 ];
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return !!img && visible( img );
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}
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return ( /^(input|select|textarea|button|object)$/.test( nodeName ) ?
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!element.disabled :
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"a" === nodeName ?
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element.href || hasTabindex :
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hasTabindex ) &&
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// the element and all of its ancestors must be visible
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visible( element );
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}
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function visible( element ) {
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return $.expr.filters.visible( element ) &&
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!$( element ).parents().addBack().filter(function() {
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return $.css( this, "visibility" ) === "hidden";
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}).length;
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}
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$.extend( $.expr[ ":" ], {
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data: $.expr.createPseudo ?
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$.expr.createPseudo(function( dataName ) {
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return function( elem ) {
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return !!$.data( elem, dataName );
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};
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}) :
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// support: jQuery <1.8
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function( elem, i, match ) {
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return !!$.data( elem, match[ 3 ] );
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},
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focusable: function( element ) {
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return focusable( element, $.attr( element, "tabindex" ) != null );
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},
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tabbable: function( element ) {
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var tabIndex = $.attr( element, "tabindex" ),
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hasTabindex = tabIndex != null;
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return ( !hasTabindex || tabIndex >= 0 ) && focusable( element, hasTabindex );
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}
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});
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// support: jQuery <1.8
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if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
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$.each( [ "Width", "Height" ], function( i, name ) {
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var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
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type = name.toLowerCase(),
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orig = {
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innerWidth: $.fn.innerWidth,
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innerHeight: $.fn.innerHeight,
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outerWidth: $.fn.outerWidth,
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outerHeight: $.fn.outerHeight
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};
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function reduce( elem, size, border, margin ) {
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$.each( side, function() {
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size -= parseFloat( $.css( elem, "padding" + this ) ) || 0;
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if ( border ) {
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size -= parseFloat( $.css( elem, "border" + this + "Width" ) ) || 0;
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}
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if ( margin ) {
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size -= parseFloat( $.css( elem, "margin" + this ) ) || 0;
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}
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});
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return size;
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}
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$.fn[ "inner" + name ] = function( size ) {
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if ( size === undefined ) {
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return orig[ "inner" + name ].call( this );
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}
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return this.each(function() {
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$( this ).css( type, reduce( this, size ) + "px" );
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});
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};
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$.fn[ "outer" + name] = function( size, margin ) {
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if ( typeof size !== "number" ) {
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return orig[ "outer" + name ].call( this, size );
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}
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return this.each(function() {
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$( this).css( type, reduce( this, size, true, margin ) + "px" );
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});
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};
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});
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}
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// support: jQuery <1.8
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if ( !$.fn.addBack ) {
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$.fn.addBack = function( selector ) {
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return this.add( selector == null ?
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this.prevObject : this.prevObject.filter( selector )
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);
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};
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}
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// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
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if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
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$.fn.removeData = (function( removeData ) {
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return function( key ) {
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if ( arguments.length ) {
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return removeData.call( this, $.camelCase( key ) );
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} else {
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return removeData.call( this );
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}
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};
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})( $.fn.removeData );
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}
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// deprecated
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$.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );
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$.fn.extend({
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focus: (function( orig ) {
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return function( delay, fn ) {
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return typeof delay === "number" ?
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this.each(function() {
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var elem = this;
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setTimeout(function() {
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$( elem ).focus();
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if ( fn ) {
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fn.call( elem );
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}
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}, delay );
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}) :
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orig.apply( this, arguments );
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};
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})( $.fn.focus ),
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disableSelection: (function() {
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var eventType = "onselectstart" in document.createElement( "div" ) ?
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"selectstart" :
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"mousedown";
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return function() {
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return this.bind( eventType + ".ui-disableSelection", function( event ) {
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event.preventDefault();
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});
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};
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})(),
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enableSelection: function() {
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return this.unbind( ".ui-disableSelection" );
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},
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zIndex: function( zIndex ) {
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if ( zIndex !== undefined ) {
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return this.css( "zIndex", zIndex );
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}
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if ( this.length ) {
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var elem = $( this[ 0 ] ), position, value;
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while ( elem.length && elem[ 0 ] !== document ) {
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// Ignore z-index if position is set to a value where z-index is ignored by the browser
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// This makes behavior of this function consistent across browsers
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// WebKit always returns auto if the element is positioned
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position = elem.css( "position" );
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if ( position === "absolute" || position === "relative" || position === "fixed" ) {
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// IE returns 0 when zIndex is not specified
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// other browsers return a string
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// we ignore the case of nested elements with an explicit value of 0
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// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
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value = parseInt( elem.css( "zIndex" ), 10 );
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if ( !isNaN( value ) && value !== 0 ) {
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return value;
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}
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}
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elem = elem.parent();
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}
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}
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return 0;
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}
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});
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// $.ui.plugin is deprecated. Use $.widget() extensions instead.
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$.ui.plugin = {
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add: function( module, option, set ) {
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var i,
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proto = $.ui[ module ].prototype;
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for ( i in set ) {
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proto.plugins[ i ] = proto.plugins[ i ] || [];
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proto.plugins[ i ].push( [ option, set[ i ] ] );
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}
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},
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call: function( instance, name, args, allowDisconnected ) {
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var i,
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set = instance.plugins[ name ];
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if ( !set ) {
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return;
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}
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if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
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return;
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}
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for ( i = 0; i < set.length; i++ ) {
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if ( instance.options[ set[ i ][ 0 ] ] ) {
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set[ i ][ 1 ].apply( instance.element, args );
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}
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}
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}
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};
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}));
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