scratch-blocks/core/blocks.js
2015-06-08 15:54:18 -07:00

53 lines
1.5 KiB
JavaScript

/**
* @license
* Visual Blocks Editor
*
* Copyright 2013 Google Inc.
* https://developers.google.com/blockly/
*
* 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.
*/
/**
* @fileoverview Flexible templating system for defining blocks.
* @author spertus@google.com (Ellen Spertus)
*/
'use strict';
goog.require('goog.asserts');
/**
* Name space for the Blocks singleton.
* Blocks gets populated in the blocks files, possibly through calls to
* Blocks.addTemplate().
*/
goog.provide('Blockly.Blocks');
/**
* Unique ID counter for created blocks.
* @private
*/
Blockly.Blocks.uidCounter_ = 0;
/**
* Generate a unique ID. This will be locally or globally unique, depending on
* whether we are in single user or realtime collaborative mode.
* @return {string}
*/
Blockly.Blocks.genUid = function() {
var uid = (++Blockly.Blocks.uidCounter_).toString();
if (Blockly.Realtime.isEnabled()) {
return Blockly.Realtime.genUid(uid);
} else {
return uid;
}
};