72 lines
1.6 KiB
JavaScript
72 lines
1.6 KiB
JavaScript
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/**
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* @author Toru Nagashima
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* @copyright 2015 Toru Nagashima. All rights reserved.
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* See LICENSE file in root directory for full license.
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*/
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"use strict";
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/**
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* Creates a unique key.
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*
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* @param {string} name - A name to create.
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* @returns {symbol|string}
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* @private
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*/
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var createUniqueKey = exports.createUniqueKey = (typeof Symbol !== "undefined" ?
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Symbol :
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function createUniqueKey(name) {
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return "[[" + name + "_" + Math.random().toFixed(8).slice(2) + "]]";
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});
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/**
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* The key of listeners.
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*
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* @type {symbol|string}
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* @private
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*/
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exports.LISTENERS = createUniqueKey("listeners");
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/**
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* A value of kind for listeners which are registered in the capturing phase.
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*
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* @type {number}
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* @private
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*/
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exports.CAPTURE = 1;
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/**
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* A value of kind for listeners which are registered in the bubbling phase.
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*
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* @type {number}
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* @private
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*/
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exports.BUBBLE = 2;
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/**
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* A value of kind for listeners which are registered as an attribute.
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*
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* @type {number}
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* @private
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*/
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exports.ATTRIBUTE = 3;
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/**
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* @typedef object ListenerNode
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* @property {function} listener - A listener function.
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* @property {number} kind - The kind of the listener.
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* @property {ListenerNode|null} next - The next node.
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* If this node is the last, this is `null`.
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*/
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/**
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* Creates a node of singly linked list for a list of listeners.
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*
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* @param {function} listener - A listener function.
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* @param {number} kind - The kind of the listener.
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* @returns {ListenerNode} The created listener node.
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*/
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exports.newNode = function newNode(listener, kind) {
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return {listener: listener, kind: kind, next: null};
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};
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