44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = wrapperRaf;
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let raf = callback => setTimeout(callback, 16);
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let caf = num => clearTimeout(num);
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if (typeof window !== 'undefined' && 'requestAnimationFrame' in window) {
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raf = callback => window.requestAnimationFrame(callback);
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caf = handle => window.cancelAnimationFrame(handle);
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}
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let rafUUID = 0;
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const rafIds = new Map();
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function cleanup(id) {
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rafIds.delete(id);
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}
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function wrapperRaf(callback) {
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let times = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
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rafUUID += 1;
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const id = rafUUID;
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function callRef(leftTimes) {
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if (leftTimes === 0) {
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// Clean up
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cleanup(id);
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// Trigger
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callback();
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} else {
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// Next raf
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const realId = raf(() => {
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callRef(leftTimes - 1);
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});
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// Bind real raf id
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rafIds.set(id, realId);
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}
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}
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callRef(times);
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return id;
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}
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wrapperRaf.cancel = id => {
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const realId = rafIds.get(id);
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cleanup(realId);
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return caf(realId);
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}; |