1 | function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
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2 |
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3 | function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
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4 |
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5 | function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
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6 |
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7 | function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); }
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8 |
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9 | function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
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10 |
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11 | function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
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12 |
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13 | export default function throttleByAnimationFrame(fn) {
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14 | var requestId;
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15 |
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16 | var later = function later(args) {
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17 | return function () {
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18 | requestId = null;
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19 | fn.apply(void 0, _toConsumableArray(args));
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20 | };
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21 | };
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22 |
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23 | var throttled = function throttled() {
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24 | if (requestId == null) {
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25 | for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
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26 | args[_key] = arguments[_key];
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27 | }
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28 |
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29 | requestId = requestAnimationFrame(later(args));
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30 | }
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31 | };
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32 |
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33 | throttled.cancel = function () {
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34 | return cancelAnimationFrame(requestId);
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35 | };
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36 |
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37 | return throttled;
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38 | }
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39 | export function throttleByAnimationFrameDecorator() {
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40 |
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41 | return function (target, key, descriptor) {
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42 | var fn = descriptor.value;
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43 | var definingProperty = false;
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44 | return {
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45 | configurable: true,
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46 | get: function get() {
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47 |
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48 | if (definingProperty || this === target.prototype || this.hasOwnProperty(key)) {
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49 | return fn;
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50 | }
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51 |
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52 | var boundFn = throttleByAnimationFrame(fn.bind(this));
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53 | definingProperty = true;
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54 | Object.defineProperty(this, key, {
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55 | value: boundFn,
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56 | configurable: true,
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57 | writable: true
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58 | });
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59 | definingProperty = false;
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60 | return boundFn;
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61 | }
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62 | };
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63 | };
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64 | } |
\ | No newline at end of file |