/** * 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; }); } };}()));