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Removed jQuery.className.(has|remove|add) in favor of .addClass/removeClass/hasClass. Also rewrote the functions for additional performance.

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This commit is contained in:
John Resig 2009-09-08 01:07:50 +00:00
parent 520f1a2684
commit 96dd06ea50
2 changed files with 76 additions and 46 deletions
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95
src/attributes.js
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@ -31,8 +31,64 @@ jQuery.fn.extend({
return this;
},
addClass: function( 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];
}
}
}
}
}
}
return this;
},
removeClass: function( value ) {
if ( (value && typeof value === "string") || value === undefined ) {
var classNames = (value || "").split(/\s+/);
for ( var i = 0, l = this.length; i < l; i++ ) {
var elem = this[i];
if ( elem.nodeType === 1 && elem.className ) {
if ( value ) {
var className = " " + elem.className + " ";
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 = "";
}
}
}
}
return this;
},
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 + " ").indexOf( className ) > -1 ) {
return true;
}
}
return false;
},
val: function( value ) {
@ -125,14 +181,6 @@ jQuery.each({
this.removeAttribute( name );
},
addClass: function( classNames ) {
jQuery.className.add( this, classNames );
},
removeClass: function( classNames ) {
jQuery.className.remove( this, classNames );
},
toggleClass: function( classNames, state ) {
var type = typeof classNames;
if ( type === "string" ) {
@ -141,8 +189,8 @@ 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 ) {
@ -160,31 +208,6 @@ jQuery.each({
});
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;
}
},
attr: function( elem, name, value ) {
// don't set attributes on text and comment nodes
if (!elem || elem.nodeType == 3 || elem.nodeType == 8)