first commit

frontend/node_modules/rc-motion/lib/hooks/useNextFrame.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+var _typeof = require("@babel/runtime/helpers/typeof");
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _raf = _interopRequireDefault(require("rc-util/lib/raf"));
+var React = _interopRequireWildcard(require("react"));
+function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
+function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
+var _default = exports.default = function _default() {
+  var nextFrameRef = React.useRef(null);
+  function cancelNextFrame() {
+    _raf.default.cancel(nextFrameRef.current);
+  }
+  function nextFrame(callback) {
+    var delay = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 2;
+    cancelNextFrame();
+    var nextFrameId = (0, _raf.default)(function () {
+      if (delay <= 1) {
+        callback({
+          isCanceled: function isCanceled() {
+            return nextFrameId !== nextFrameRef.current;
+          }
+        });
+      } else {
+        nextFrame(callback, delay - 1);
+      }
+    });
+    nextFrameRef.current = nextFrameId;
+  }
+  React.useEffect(function () {
+    return function () {
+      cancelNextFrame();
+    };
+  }, []);
+  return [nextFrame, cancelNextFrame];
+};