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frontend/node_modules/antd/lib/form/hooks/useFrameState.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = useFrameState;
+var React = _interopRequireWildcard(require("react"));
+var _raf = _interopRequireDefault(require("rc-util/lib/raf"));
+function useFrameState(defaultValue) {
+  const [value, setValue] = React.useState(defaultValue);
+  const frameRef = React.useRef(null);
+  const batchRef = React.useRef([]);
+  const destroyRef = React.useRef(false);
+  React.useEffect(() => {
+    destroyRef.current = false;
+    return () => {
+      destroyRef.current = true;
+      _raf.default.cancel(frameRef.current);
+      frameRef.current = null;
+    };
+  }, []);
+  function setFrameValue(updater) {
+    if (destroyRef.current) {
+      return;
+    }
+    if (frameRef.current === null) {
+      batchRef.current = [];
+      frameRef.current = (0, _raf.default)(() => {
+        frameRef.current = null;
+        setValue(prevValue => {
+          let current = prevValue;
+          batchRef.current.forEach(func => {
+            current = func(current);
+          });
+          return current;
+        });
+      });
+    }
+    batchRef.current.push(updater);
+  }
+  return [value, setFrameValue];
+}