--- /dev/null
+/**
+ * Component layout for tabs
+ * @class Ext.layout.component.Tab
+ * @extends Ext.layout.component.Button
+ * @private
+ */
+Ext.define('Ext.layout.component.Tab', {
+
+ alias: ['layout.tab'],
+
+ extend: 'Ext.layout.component.Button',
+
+ //type: 'button',
+
+ beforeLayout: function() {
+ var me = this, dirty = me.lastClosable !== me.owner.closable;
+
+ if (dirty) {
+ delete me.adjWidth;
+ }
+
+ return this.callParent(arguments) || dirty;
+ },
+
+ onLayout: function () {
+ var me = this;
+
+ me.callParent(arguments);
+
+ me.lastClosable = me.owner.closable;
+ }
+});
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