2.0: Remove getSetAttribute and getSetInput and oldIE attroperties hooks

src/attributes.js

@@ -3,10 +3,7 @@ var nodeHook, boolHook,
 	rreturn = /\r/g,
 	rfocusable = /^(?:input|select|textarea|button|object)$/i,
 	rclickable = /^(?:a|area)$/i,
-	rboolean = /^(?:checked|selected|autofocus|autoplay|async|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped)$/i,
-	ruseDefault = /^(?:checked|selected)$/i,
-	getSetAttribute = jQuery.support.getSetAttribute,
-	getSetInput = jQuery.support.input;
+	rboolean = /^(?:checked|selected|autofocus|autoplay|async|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped)$/i;
 
 jQuery.fn.extend({
 	attr: function( name, value ) {
@@ -349,22 +346,12 @@ jQuery.extend({
 				propName = jQuery.propFix[ name ] || name;
 
 				// Boolean attributes get special treatment (#10870)
+				// Set corresponding property to false for boolean attributes
 				if ( rboolean.test( name ) ) {
-					// Set corresponding property to false for boolean attributes
-					// Also clear defaultChecked/defaultSelected (if appropriate) for IE<8
-					if ( !getSetAttribute && ruseDefault.test( name ) ) {
-						elem[ jQuery.camelCase( "default-" + name ) ] =
-							elem[ propName ] = false;
-					} else {
-						elem[ propName ] = false;
-					}
-
-				// See #9699 for explanation of this approach (setting first, then removal)
-				} else {
-					jQuery.attr( elem, name, "" );
+					elem[ propName ] = false;
 				}
 
-				elem.removeAttribute( getSetAttribute ? name : propName );
+				elem.removeAttribute( name );
 			}
 		}
 	},
@@ -456,123 +443,21 @@ jQuery.extend({
 // Hook for boolean attributes
 boolHook = {
 	get: function( elem, name ) {
-		var
-			// Use .prop to determine if this attribute is understood as boolean
-			prop = jQuery.prop( elem, name ),
-
-			// Fetch it accordingly
-			attr = typeof prop === "boolean" && elem.getAttribute( name ),
-			detail = typeof prop === "boolean" ?
-
-				getSetInput && getSetAttribute ?
-					attr != null :
-					// oldIE fabricates an empty string for missing boolean attributes
-					// and conflates checked/selected into attroperties
-					ruseDefault.test( name ) ?
-						elem[ jQuery.camelCase( "default-" + name ) ] :
-						!!attr :
-
-				// fetch an attribute node for properties not recognized as boolean
-				elem.getAttributeNode( name );
-
-		return detail && detail.value !== false ?
+		return elem.getAttribute( name ) !== null ?
 			name.toLowerCase() :
 			undefined;
 	},
 	set: function( elem, value, name ) {
 		if ( value === false ) {
 			// Remove boolean attributes when set to false
 			jQuery.removeAttr( elem, name );
-		} else if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
-			// IE<8 needs the *property* name
-			elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );
-
-		// Use defaultChecked and defaultSelected for oldIE
 		} else {
-			elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
+			elem.setAttribute( name, name );
 		}
-
 		return name;
 	}
 };
 
-// fix oldIE value attroperty
-if ( !getSetInput || !getSetAttribute ) {
-	jQuery.attrHooks.value = {
-		get: function( elem, name ) {
-			var ret = elem.getAttributeNode( name );
-			return jQuery.nodeName( elem, "input" ) ?
-
-				// Ignore the value *property* by using defaultValue
-				elem.defaultValue :
-
-				ret && ret.specified ? ret.value : undefined;
-		},
-		set: function( elem, value, name ) {
-			if ( jQuery.nodeName( elem, "input" ) ) {
-				// Does not return so that setAttribute is also used
-				elem.defaultValue = value;
-			} else {
-				// Use nodeHook if defined (#1954); otherwise setAttribute is fine
-				return nodeHook && nodeHook.set( elem, value, name );
-			}
-		}
-	};
-}
-
-// IE6/7 do not support getting/setting some attributes with get/setAttribute
-if ( !getSetAttribute ) {
-
-	// Use this for any attribute in IE6/7
-	// This fixes almost every IE6/7 issue
-	nodeHook = jQuery.valHooks.button = {
-		get: function( elem, name ) {
-			var ret = elem.getAttributeNode( name );
-			return ret && ( name === "id" || name === "name" || name === "coords" ? ret.value !== "" : ret.specified ) ?
-				ret.value :
-				undefined;
-		},
-		set: function( elem, value, name ) {
-			// Set the existing or create a new attribute node
-			var ret = elem.getAttributeNode( name );
-			if ( !ret ) {
-				elem.setAttributeNode(
-					(ret = elem.ownerDocument.createAttribute( name ))
-				);
-			}
-
-			ret.value = value += "";
-
-			// Break association with cloned elements by also using setAttribute (#9646)
-			return name === "value" || value === elem.getAttribute( name ) ?
-				value :
-				undefined;
-		}
-	};
-
-	// Set contenteditable to false on removals(#10429)
-	// Setting to empty string throws an error as an invalid value
-	jQuery.attrHooks.contenteditable = {
-		get: nodeHook.get,
-		set: function( elem, value, name ) {
-			nodeHook.set( elem, value === "" ? false : value, name );
-		}
-	};
-
-	// Set width and height to auto instead of 0 on empty string( Bug #8150 )
-	// This is for removals
-	jQuery.each([ "width", "height" ], function( i, name ) {
-		jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-			set: function( elem, value ) {
-				if ( value === "" ) {
-					elem.setAttribute( name, "auto" );
-					return value;
-				}
-			}
-		});
-	});
-}
-
 // Radios and checkboxes getter/setter
 if ( !jQuery.support.checkOn ) {
 	jQuery.each([ "radio", "checkbox" ], function() {

src/support.js

@@ -80,11 +80,6 @@ jQuery.support = (function() {
 		support.deleteExpando = false;
 	}
 
-	// Check if we can trust getAttribute("value")
-	input = document.createElement("input");
-	input.setAttribute( "value", "" );
-	support.input = input.getAttribute( "value" ) === "";
-
 	// Check if an input maintains its value after becoming a radio
 	input.value = "t";
 	input.setAttribute( "type", "radio" );