marko/widgets/uniqueId.js
2016-11-02 16:12:13 -06:00

36 lines
1.1 KiB
JavaScript

/*
* Copyright 2011 eBay Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
function IdProvider(out) {
var global = this.global = out.global;
this.prefix = global.widgetIdPrefix || 'w';
if (global._nextWidgetId == null) {
global._nextWidgetId = 0;
}
}
IdProvider.prototype.nextId = function() {
return this.prefix + (this.global._nextWidgetId++);
};
module.exports = function (out) {
var global = out.global;
var idProvider = global._widgetIdProvider ||
(global._widgetIdProvider = new IdProvider(out));
return idProvider.nextId();
};