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48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
/**
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* @license
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* Visual Blocks Editor
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*
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* Copyright 2019 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Generator for unique element IDs.
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* For UUIDs use Blockly.utils.genUid. The ID generator should primarily be
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* used for IDs that end up in the DOM.
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* @author samelh@google.com (Sam El-Husseini)
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*/
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'use strict';
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goog.provide('Blockly.utils.IdGenerator');
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/**
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* Next unique ID to use.
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* @type {number}
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* @private
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*/
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Blockly.utils.IdGenerator.nextId_ = 0;
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/**
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* Gets the next unique ID.
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* IDs are compatible with the HTML4 id attribute restrictions:
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* Use only ASCII letters, digits, '_', '-' and '.'
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* @return {string} The next unique identifier.
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*/
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Blockly.utils.IdGenerator.getNextUniqueId = function() {
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return 'blockly:' + (Blockly.utils.IdGenerator.nextId_++).toString(36);
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};
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