96 lines
3.2 KiB
JavaScript
96 lines
3.2 KiB
JavaScript
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// https://d3js.org/d3-dispatch/ v3.0.1 Copyright 2010-2021 Mike Bostock
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.d3 = global.d3 || {}));
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}(this, (function (exports) { 'use strict';
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var noop = {value: () => {}};
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function dispatch() {
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for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {
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if (!(t = arguments[i] + "") || (t in _) || /[\s.]/.test(t)) throw new Error("illegal type: " + t);
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_[t] = [];
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}
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return new Dispatch(_);
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}
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function Dispatch(_) {
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this._ = _;
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}
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function parseTypenames(typenames, types) {
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return typenames.trim().split(/^|\s+/).map(function(t) {
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var name = "", i = t.indexOf(".");
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if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
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if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);
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return {type: t, name: name};
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});
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}
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Dispatch.prototype = dispatch.prototype = {
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constructor: Dispatch,
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on: function(typename, callback) {
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var _ = this._,
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T = parseTypenames(typename + "", _),
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t,
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i = -1,
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n = T.length;
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// If no callback was specified, return the callback of the given type and name.
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if (arguments.length < 2) {
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while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t;
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return;
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}
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// If a type was specified, set the callback for the given type and name.
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// Otherwise, if a null callback was specified, remove callbacks of the given name.
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if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);
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while (++i < n) {
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if (t = (typename = T[i]).type) _[t] = set(_[t], typename.name, callback);
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else if (callback == null) for (t in _) _[t] = set(_[t], typename.name, null);
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}
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return this;
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},
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copy: function() {
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var copy = {}, _ = this._;
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for (var t in _) copy[t] = _[t].slice();
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return new Dispatch(copy);
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},
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call: function(type, that) {
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if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];
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if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
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for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
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},
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apply: function(type, that, args) {
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if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
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for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
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}
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};
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function get(type, name) {
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for (var i = 0, n = type.length, c; i < n; ++i) {
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if ((c = type[i]).name === name) {
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return c.value;
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}
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}
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}
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function set(type, name, callback) {
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for (var i = 0, n = type.length; i < n; ++i) {
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if (type[i].name === name) {
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type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1));
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break;
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}
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}
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if (callback != null) type.push({name: name, value: callback});
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return type;
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}
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exports.dispatch = dispatch;
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Object.defineProperty(exports, '__esModule', { value: true });
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})));
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