ClassList.js
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/**
* This class provides a DOM ClassList API to buffer access to an element's class.
* Instances of this class are created by {@link Ext.layout.ContextItem#getClassList}.
*/
Ext.define('Ext.layout.ClassList', (function () {
var splitWords = Ext.String.splitWords,
toMap = Ext.Array.toMap;
return {
dirty: false,
constructor: function (owner) {
this.owner = owner;
this.map = toMap(this.classes = splitWords(owner.el.className));
},
/**
* Adds a single class to the class list.
*/
add: function (cls) {
var me = this;
if (!me.map[cls]) {
me.map[cls] = true;
me.classes.push(cls);
if (!me.dirty) {
me.dirty = true;
me.owner.markDirty();
}
}
},
/**
* Adds one or more classes in an array or space-delimited string to the class list.
*/
addMany: function (classes) {
Ext.each(splitWords(classes), this.add, this);
},
contains: function (cls) {
return this.map[cls];
},
flush: function () {
this.owner.el.className = this.classes.join(' ');
this.dirty = false;
},
/**
* Removes a single class from the class list.
*/
remove: function (cls) {
var me = this;
if (me.map[cls]) {
delete me.map[cls];
me.classes = Ext.Array.filter(me.classes, function (c) {
return c != cls;
});
if (!me.dirty) {
me.dirty = true;
me.owner.markDirty();
}
}
},
/**
* Removes one or more classes in an array or space-delimited string from the class
* list.
*/
removeMany: function (classes) {
var me = this,
remove = toMap(splitWords(classes));
me.classes = Ext.Array.filter(me.classes, function (c) {
if (!remove[c]) {
return true;
}
delete me.map[c];
if (!me.dirty) {
me.dirty = true;
me.owner.markDirty();
}
return false;
});
}
};
}()));