js/jquery/src/jquery/attributes/prop.js

   1 define([
   2         "../core",
   3         "../core/access",
   4         "./support"
   5 ], function( jQuery, access, support ) {
   6
   7 var rfocusable = /^(?:input|select|textarea|button|object)$/i,
   8         rclickable = /^(?:a|area)$/i;
   9
  10 jQuery.fn.extend({
  11         prop: function( name, value ) {
  12                 return access( this, jQuery.prop, name, value, arguments.length > 1 );
  13         },
  14
  15         removeProp: function( name ) {
  16                 name = jQuery.propFix[ name ] || name;
  17                 return this.each(function() {
  18                         // try/catch handles cases where IE balks (such as removing a property on window)
  19                         try {
  20                                 this[ name ] = undefined;
  21                                 delete this[ name ];
  22                         } catch( e ) {}
  23                 });
  24         }
  25 });
  26
  27 jQuery.extend({
  28         propFix: {
  29                 "for": "htmlFor",
  30                 "class": "className"
  31         },
  32
  33         prop: function( elem, name, value ) {
  34                 var ret, hooks, notxml,
  35                         nType = elem.nodeType;
  36
  37                 // don't get/set properties on text, comment and attribute nodes
  38                 if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
  39                         return;
  40                 }
  41
  42                 notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
  43
  44                 if ( notxml ) {
  45                         // Fix name and attach hooks
  46                         name = jQuery.propFix[ name ] || name;
  47                         hooks = jQuery.propHooks[ name ];
  48                 }
  49
  50                 if ( value !== undefined ) {
  51                         return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
  52                                 ret :
  53                                 ( elem[ name ] = value );
  54
  55                 } else {
  56                         return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
  57                                 ret :
  58                                 elem[ name ];
  59                 }
  60         },
  61
  62         propHooks: {
  63                 tabIndex: {
  64                         get: function( elem ) {
  65                                 // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
  66                                 // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
  67                                 // Use proper attribute retrieval(#12072)
  68                                 var tabindex = jQuery.find.attr( elem, "tabindex" );
  69
  70                                 return tabindex ?
  71                                         parseInt( tabindex, 10 ) :
  72                                         rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
  73                                                 0 :
  74                                                 -1;
  75                         }
  76                 }
  77         }
  78 });
  79
  80 // Some attributes require a special call on IE
  81 // http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
  82 if ( !support.hrefNormalized ) {
  83         // href/src property should get the full normalized URL (#10299/#12915)
  84         jQuery.each([ "href", "src" ], function( i, name ) {
  85                 jQuery.propHooks[ name ] = {
  86                         get: function( elem ) {
  87                                 return elem.getAttribute( name, 4 );
  88                         }
  89                 };
  90         });
  91 }
  92
  93 // Support: Safari, IE9+
  94 // mis-reports the default selected property of an option
  95 // Accessing the parent's selectedIndex property fixes it
  96 if ( !support.optSelected ) {
  97         jQuery.propHooks.selected = {
  98                 get: function( elem ) {
  99                         var parent = elem.parentNode;
 100
 101                         if ( parent ) {
 102                                 parent.selectedIndex;
 103
 104                                 // Make sure that it also works with optgroups, see #5701
 105                                 if ( parent.parentNode ) {
 106                                         parent.parentNode.selectedIndex;
 107                                 }
 108                         }
 109                         return null;
 110                 }
 111         };
 112 }
 113
 114 jQuery.each([
 115         "tabIndex",
 116         "readOnly",
 117         "maxLength",
 118         "cellSpacing",
 119         "cellPadding",
 120         "rowSpan",
 121         "colSpan",
 122         "useMap",
 123         "frameBorder",
 124         "contentEditable"
 125 ], function() {
 126         jQuery.propFix[ this.toLowerCase() ] = this;
 127 });
 128
 129 // IE6/7 call enctype encoding
 130 if ( !support.enctype ) {
 131         jQuery.propFix.enctype = "encoding";
 132 }
 133
 134 });