Reverted accidental commit in 5197ac9fc8aa71c2ebc0d7217f41a3679eb1b902.
[jquery.git] / src / attributes.js
index f3e1b4c..f3d0951 100644 (file)
@@ -1,34 +1,65 @@
+var rclass = /[\n\t]/g;
+
 jQuery.fn.extend({
        attr: function( name, value ) {
-               var options = name, isFunction = jQuery.isFunction( value );
+               return access(this, name, value, true, jQuery.attr);
+       },
 
-               if ( typeof name === "string" ) {
-                       // Are we setting the attribute?
-                       if ( value === undefined ) {
-                               return this.length ?
-                                       jQuery.attr( this[0], name ) :
-                                       null;
+       addClass: function( value ) {
+               if(jQuery.isFunction(value)) {
+                       return this.each(function() {
+                               jQuery(this).addClass( value.call(this) );
+                       });
+               }
 
-                       // Convert name, value params to options hash format
-                       } else {
-                               options = {};
-                               options[ name ] = value;
+               if ( value && typeof value === "string" ) {
+                       var classNames = (value || "").split(/\s+/);
+
+                       for ( var i = 0, l = this.length; i < l; i++ ) {
+                               var elem = this[i];
+
+                               if ( elem.nodeType === 1 ) {
+                                       if ( !elem.className ) {
+                                               elem.className = value;
+                                       } else {
+                                               var className = " " + elem.className + " ";
+                                               for ( var c = 0, cl = classNames.length; c < cl; c++ ) {
+                                                       if ( className.indexOf( " " + classNames[c] + " " ) < 0 ) {
+                                                               elem.className += " " + classNames[c];
+                                                       }
+                                               }
+                                       }
+                               }
                        }
                }
 
-               // For each element...
-               for ( var i = 0, l = this.length; i < l; i++ ) {
-                       var elem = this[i];
+               return this;
+       },
+
+       removeClass: function( value ) {
+               if(jQuery.isFunction(value)) {
+                       return this.each(function() {
+                               jQuery(this).removeClass( value.call(this) );
+                       });
+               }
 
-                       // Set all the attributes
-                       for ( var prop in options ) {
-                               value = options[prop];
+               if ( (value && typeof value === "string") || value === undefined ) {
+                       var classNames = (value || "").split(/\s+/);
 
-                               if ( isFunction ) {
-                                       value = value.call( elem, i );
-                               }
+                       for ( var i = 0, l = this.length; i < l; i++ ) {
+                               var elem = this[i];
 
-                               jQuery.attr( elem, prop, value );
+                               if ( elem.nodeType === 1 && elem.className ) {
+                                       if ( value ) {
+                                               var className = (" " + elem.className + " ").replace(rclass, " ");
+                                               for ( var c = 0, cl = classNames.length; c < cl; c++ ) {
+                                                       className = className.replace(" " + classNames[c] + " ", " ");
+                                               }
+                                               elem.className = className.substring(1, className.length - 1);
+                                       } else {
+                                               elem.className = "";
+                                       }
+                               }
                        }
                }
 
@@ -36,7 +67,14 @@ jQuery.fn.extend({
        },
 
        hasClass: function( selector ) {
-               return !!selector && this.is( "." + selector );
+               var className = " " + selector + " ";
+               for ( var i = 0, l = this.length; i < l; i++ ) {
+                       if ( (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) > -1 ) {
+                               return true;
+                       }
+               }
+
+               return false;
        },
 
        val: function( value ) {
@@ -44,9 +82,9 @@ jQuery.fn.extend({
                        var elem = this[0];
 
                        if ( elem ) {
-                               if( jQuery.nodeName( elem, 'option' ) )
+                               if( jQuery.nodeName( elem, 'option' ) ) {
                                        return (elem.attributes.value || {}).specified ? elem.value : elem.text;
-
+                               }
                                // We need to handle select boxes special
                                if ( jQuery.nodeName( elem, "select" ) ) {
                                        var index = elem.selectedIndex,
@@ -55,9 +93,9 @@ jQuery.fn.extend({
                                                one = elem.type == "select-one";
 
                                        // Nothing was selected
-                                       if ( index < 0 )
+                                       if ( index < 0 ) {
                                                return null;
-
+                                       }
                                        // Loop through all the selected options
                                        for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
                                                var option = options[ i ];
@@ -67,9 +105,9 @@ jQuery.fn.extend({
                                                        value = jQuery(option).val();
 
                                                        // We don't need an array for one selects
-                                                       if ( one )
+                                                       if ( one ) {
                                                                return value;
-
+                                                       }
                                                        // Multi-Selects return an array
                                                        values.push( value );
                                                }
@@ -86,30 +124,41 @@ jQuery.fn.extend({
                        return undefined;
                }
 
-               if ( typeof value === "number" )
+               // Typecast once if the value is a number
+               if ( typeof value === "number" ) {
                        value += '';
+               }
+               var val = value;
 
                return this.each(function(){
-                       if ( this.nodeType != 1 )
-                               return;
-
-                       if ( jQuery.isArray(value) && /radio|checkbox/.test( this.type ) )
-                               this.checked = (jQuery.inArray(this.value, value) >= 0 ||
-                                       jQuery.inArray(this.name, value) >= 0);
+                       if(jQuery.isFunction(value)) {
+                               val = value.call(this);
+                               // Typecast each time if the value is a Function and the appended
+                               // value is therefore different each time.
+                               if( typeof val === "number" ) {
+                                       val += '';
+                               }
+                       }
 
+                       if ( this.nodeType != 1 ) {
+                               return;
+                       }
+                       if ( jQuery.isArray(val) && /radio|checkbox/.test( this.type ) ) {
+                               this.checked = jQuery.inArray(this.value || this.name, val) >= 0;
+                       }
                        else if ( jQuery.nodeName( this, "select" ) ) {
-                               var values = jQuery.makeArray(value);
+                               var values = jQuery.makeArray(val);
 
                                jQuery( "option", this ).each(function(){
-                                       this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
-                                               jQuery.inArray( this.text, values ) >= 0);
+                                       this.selected = jQuery.inArray( this.value || this.text, values ) >= 0;
                                });
 
-                               if ( !values.length )
+                               if ( !values.length ) {
                                        this.selectedIndex = -1;
-
-                       } else
-                               this.value = value;
+                               }
+                       } else {
+                               this.value = val;
+                       }
                });
        }
 });
@@ -117,16 +166,9 @@ jQuery.fn.extend({
 jQuery.each({
        removeAttr: function( name ) {
                jQuery.attr( this, name, "" );
-               if (this.nodeType == 1)
+               if ( this.nodeType === 1 ) {
                        this.removeAttribute( name );
-       },
-
-       addClass: function( classNames ) {
-               jQuery.className.add( this, classNames );
-       },
-
-       removeClass: function( classNames ) {
-               jQuery.className.remove( this, classNames );
+               }
        },
 
        toggleClass: function( classNames, state ) {
@@ -137,8 +179,8 @@ jQuery.each({
                                classNames = classNames.split( /\s+/ );
                        while ( (className = classNames[ i++ ]) ) {
                                // check each className given, space seperated list
-                               state = isBool ? state : !jQuery.className.has( this, className );
-                               jQuery.className[ state ? "add" : "remove" ]( this, className );
+                               state = isBool ? state : !jQuery(this).hasClass( className );
+                               jQuery(this)[ state ? "addClass" : "removeClass" ]( className );
                        }
                } else if ( type === "undefined" || type === "boolean" ) {
                        if ( this.className ) {
@@ -150,43 +192,42 @@ jQuery.each({
                }
        }
 }, function(name, fn){
-       jQuery.fn[ name ] = function(){
+       jQuery.fn[ name ] = function(val, state){
+               if( jQuery.isFunction( val ) ) {
+                       return this.each(function() { jQuery(this)[ name ]( val.call(this), state ); });
+               }
+
                return this.each( fn, arguments );
        };
 });
 
 jQuery.extend({
-       className: {
-               // internal only, use addClass("class")
-               add: function( elem, classNames ) {
-                       jQuery.each((classNames || "").split(/\s+/), function(i, className){
-                               if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
-                                       elem.className += (elem.className ? " " : "") + className;
-                       });
-               },
-
-               // internal only, use removeClass("class")
-               remove: function( elem, classNames ) {
-                       if (elem.nodeType == 1)
-                               elem.className = classNames !== undefined ?
-                                       jQuery.grep(elem.className.split(/\s+/), function(className){
-                                               return !jQuery.className.has( classNames, className );
-                                       }).join(" ") :
-                                       "";
-               },
-
-               // internal only, use hasClass("class")
-               has: function( elem, className ) {
-                       return elem && jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
-               }
+       attrFn: {
+               val: true,
+               addClass: true,
+               css: true,
+               html: true,
+               text: true,
+               append: true,
+               prepend: true,
+               data: true,
+               width: true,
+               height: true,
+               offset: true,
+               bind: true
        },
-
+               
        attr: function( elem, name, value ) {
                // don't set attributes on text and comment nodes
-               if (!elem || elem.nodeType == 3 || elem.nodeType == 8)
+               if (!elem || elem.nodeType == 3 || elem.nodeType == 8) {
                        return undefined;
+               }
+
+               if ( name in jQuery.attrFn && value !== undefined ) {
+                       return jQuery(elem)[name](value);
+               }
 
-               var notxml = !elem.tagName || !jQuery.isXMLDoc( elem ),
+               var notxml = elem.nodeType !== 1 || !jQuery.isXMLDoc( elem ),
                        // Whether we are setting (or getting)
                        set = value !== undefined;
 
@@ -194,39 +235,45 @@ jQuery.extend({
                name = notxml && jQuery.props[ name ] || name;
 
                // Only do all the following if this is a node (faster for style)
-               if ( elem.tagName ) {
+               if ( elem.nodeType === 1 ) {
 
                        // These attributes require special treatment
                        var special = /href|src|style/.test( name );
 
                        // Safari mis-reports the default selected property of a hidden option
                        // Accessing the parent's selectedIndex property fixes it
-                       if ( name == "selected" && elem.parentNode )
+                       if ( name == "selected" && elem.parentNode ) {
                                elem.parentNode.selectedIndex;
-
+                       }
                        // If applicable, access the attribute via the DOM 0 way
                        if ( name in elem && notxml && !special ) {
-                               if ( set ){
+                               if ( set ) {
                                        // We can't allow the type property to be changed (since it causes problems in IE)
-                                       if ( name == "type" && elem.nodeName.match(/(button|input)/i) && elem.parentNode )
+                                       if ( name == "type" && /(button|input)/i.test(elem.nodeName) && elem.parentNode ) {
                                                throw "type property can't be changed";
-
-                                       elem[ name ] = value;
+                                       }
+                                       // browsers index elements by id/name on forms, give priority to attributes.
+                                       if( jQuery.nodeName( elem, "form" ) ) {
+                                               // convert the value to a string (all browsers do this but IE) see #1070
+                                               elem.setAttribute( name, "" + value );
+                                       } else {
+                                               elem[ name ] = value;
+                                       }
                                }
 
                                // browsers index elements by id/name on forms, give priority to attributes.
-                               if( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) )
+                               if( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) ) {
                                        return elem.getAttributeNode( name ).nodeValue;
-
+                               }
                                // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
                                // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
                                if ( name == "tabIndex" ) {
                                        var attributeNode = elem.getAttributeNode( "tabIndex" );
                                        return attributeNode && attributeNode.specified
                                                ? attributeNode.value
-                                               : elem.nodeName.match(/(button|input|object|select|textarea)/i)
+                                               : /(button|input|object|select|textarea)/i.test(elem.nodeName)
                                                        ? 0
-                                                       : elem.nodeName.match(/^(a|area)$/i) && elem.href
+                                                       : /^(a|area)$/i.test(elem.nodeName) && elem.href
                                                                ? 0
                                                                : undefined;
                                }
@@ -235,16 +282,16 @@ jQuery.extend({
                        }
 
                        if ( !jQuery.support.style && notxml && name == "style" ) {
-                               if ( set )
+                               if ( set ) {
                                        elem.style.cssText = "" + value;
-
+                               }
                                return elem.style.cssText;
                        }
 
-                       if ( set )
+                       if ( set ) {
                                // convert the value to a string (all browsers do this but IE) see #1070
                                elem.setAttribute( name, "" + value );
-
+                       }
                        var attr = !jQuery.support.hrefNormalized && notxml && special
                                        // Some attributes require a special call on IE
                                        ? elem.getAttribute( name, 2 )
@@ -258,4 +305,4 @@ jQuery.extend({
                // Using attr for specific style information is now deprecated. Use style insead.
                return jQuery.style(elem, name, value);
        }
-});
\ No newline at end of file
+});