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bower_components/jquery/src/attributes/attr.js 3.24 KB
74249687   Luigi Serra   Cross browser con...
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  define([
  	"../core",
  	"../var/rnotwhite",
  	"../var/strundefined",
  	"../core/access",
  	"./support",
  	"../selector"
  ], function( jQuery, rnotwhite, strundefined, access, support ) {
  
  var nodeHook, boolHook,
  	attrHandle = jQuery.expr.attrHandle;
  
  jQuery.fn.extend({
  	attr: function( name, value ) {
  		return access( this, jQuery.attr, name, value, arguments.length > 1 );
  	},
  
  	removeAttr: function( name ) {
  		return this.each(function() {
  			jQuery.removeAttr( this, name );
  		});
  	}
  });
  
  jQuery.extend({
  	attr: function( elem, name, value ) {
  		var hooks, ret,
  			nType = elem.nodeType;
  
  		// don't get/set attributes on text, comment and attribute nodes
  		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
  			return;
  		}
  
  		// Fallback to prop when attributes are not supported
  		if ( typeof elem.getAttribute === strundefined ) {
  			return jQuery.prop( elem, name, value );
  		}
  
  		// All attributes are lowercase
  		// Grab necessary hook if one is defined
  		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
  			name = name.toLowerCase();
  			hooks = jQuery.attrHooks[ name ] ||
  				( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
  		}
  
  		if ( value !== undefined ) {
  
  			if ( value === null ) {
  				jQuery.removeAttr( elem, name );
  
  			} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
  				return ret;
  
  			} else {
  				elem.setAttribute( name, value + "" );
  				return value;
  			}
  
  		} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
  			return ret;
  
  		} else {
  			ret = jQuery.find.attr( elem, name );
  
  			// Non-existent attributes return null, we normalize to undefined
  			return ret == null ?
  				undefined :
  				ret;
  		}
  	},
  
  	removeAttr: function( elem, value ) {
  		var name, propName,
  			i = 0,
  			attrNames = value && value.match( rnotwhite );
  
  		if ( attrNames && elem.nodeType === 1 ) {
  			while ( (name = attrNames[i++]) ) {
  				propName = jQuery.propFix[ name ] || name;
  
  				// Boolean attributes get special treatment (#10870)
  				if ( jQuery.expr.match.bool.test( name ) ) {
  					// Set corresponding property to false
  					elem[ propName ] = false;
  				}
  
  				elem.removeAttribute( name );
  			}
  		}
  	},
  
  	attrHooks: {
  		type: {
  			set: function( elem, value ) {
  				if ( !support.radioValue && value === "radio" &&
  					jQuery.nodeName( elem, "input" ) ) {
  					var val = elem.value;
  					elem.setAttribute( "type", value );
  					if ( val ) {
  						elem.value = val;
  					}
  					return value;
  				}
  			}
  		}
  	}
  });
  
  // Hooks for boolean attributes
  boolHook = {
  	set: function( elem, value, name ) {
  		if ( value === false ) {
  			// Remove boolean attributes when set to false
  			jQuery.removeAttr( elem, name );
  		} else {
  			elem.setAttribute( name, name );
  		}
  		return name;
  	}
  };
  jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
  	var getter = attrHandle[ name ] || jQuery.find.attr;
  
  	attrHandle[ name ] = function( elem, name, isXML ) {
  		var ret, handle;
  		if ( !isXML ) {
  			// Avoid an infinite loop by temporarily removing this function from the getter
  			handle = attrHandle[ name ];
  			attrHandle[ name ] = ret;
  			ret = getter( elem, name, isXML ) != null ?
  				name.toLowerCase() :
  				null;
  			attrHandle[ name ] = handle;
  		}
  		return ret;
  	};
  });
  
  });