planning

node_modules/@dnd-kit/utilities/dist/utilities.cjs.development.js

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+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var react = require('react');
+
+function useCombinedRefs() {
+  for (var _len = arguments.length, refs = new Array(_len), _key = 0; _key < _len; _key++) {
+    refs[_key] = arguments[_key];
+  }
+
+  return react.useMemo(() => node => {
+    refs.forEach(ref => ref(node));
+  }, // eslint-disable-next-line react-hooks/exhaustive-deps
+  refs);
+}
+
+// https://github.com/facebook/react/blob/master/packages/shared/ExecutionEnvironment.js
+const canUseDOM = typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined';
+
+function isWindow(element) {
+  const elementString = Object.prototype.toString.call(element);
+  return elementString === '[object Window]' || // In Electron context the Window object serializes to [object global]
+  elementString === '[object global]';
+}
+
+function isNode(node) {
+  return 'nodeType' in node;
+}
+
+function getWindow(target) {
+  var _target$ownerDocument, _target$ownerDocument2;
+
+  if (!target) {
+    return window;
+  }
+
+  if (isWindow(target)) {
+    return target;
+  }
+
+  if (!isNode(target)) {
+    return window;
+  }
+
+  return (_target$ownerDocument = (_target$ownerDocument2 = target.ownerDocument) == null ? void 0 : _target$ownerDocument2.defaultView) != null ? _target$ownerDocument : window;
+}
+
+function isDocument(node) {
+  const {
+    Document
+  } = getWindow(node);
+  return node instanceof Document;
+}
+
+function isHTMLElement(node) {
+  if (isWindow(node)) {
+    return false;
+  }
+
+  return node instanceof getWindow(node).HTMLElement;
+}
+
+function isSVGElement(node) {
+  return node instanceof getWindow(node).SVGElement;
+}
+
+function getOwnerDocument(target) {
+  if (!target) {
+    return document;
+  }
+
+  if (isWindow(target)) {
+    return target.document;
+  }
+
+  if (!isNode(target)) {
+    return document;
+  }
+
+  if (isDocument(target)) {
+    return target;
+  }
+
+  if (isHTMLElement(target) || isSVGElement(target)) {
+    return target.ownerDocument;
+  }
+
+  return document;
+}
+
+/**
+ * A hook that resolves to useEffect on the server and useLayoutEffect on the client
+ * @param callback {function} Callback function that is invoked when the dependencies of the hook change
+ */
+
+const useIsomorphicLayoutEffect = canUseDOM ? react.useLayoutEffect : react.useEffect;
+
+function useEvent(handler) {
+  const handlerRef = react.useRef(handler);
+  useIsomorphicLayoutEffect(() => {
+    handlerRef.current = handler;
+  });
+  return react.useCallback(function () {
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+
+    return handlerRef.current == null ? void 0 : handlerRef.current(...args);
+  }, []);
+}
+
+function useInterval() {
+  const intervalRef = react.useRef(null);
+  const set = react.useCallback((listener, duration) => {
+    intervalRef.current = setInterval(listener, duration);
+  }, []);
+  const clear = react.useCallback(() => {
+    if (intervalRef.current !== null) {
+      clearInterval(intervalRef.current);
+      intervalRef.current = null;
+    }
+  }, []);
+  return [set, clear];
+}
+
+function useLatestValue(value, dependencies) {
+  if (dependencies === void 0) {
+    dependencies = [value];
+  }
+
+  const valueRef = react.useRef(value);
+  useIsomorphicLayoutEffect(() => {
+    if (valueRef.current !== value) {
+      valueRef.current = value;
+    }
+  }, dependencies);
+  return valueRef;
+}
+
+function useLazyMemo(callback, dependencies) {
+  const valueRef = react.useRef();
+  return react.useMemo(() => {
+    const newValue = callback(valueRef.current);
+    valueRef.current = newValue;
+    return newValue;
+  }, // eslint-disable-next-line react-hooks/exhaustive-deps
+  [...dependencies]);
+}
+
+function useNodeRef(onChange) {
+  const onChangeHandler = useEvent(onChange);
+  const node = react.useRef(null);
+  const setNodeRef = react.useCallback(element => {
+    if (element !== node.current) {
+      onChangeHandler == null ? void 0 : onChangeHandler(element, node.current);
+    }
+
+    node.current = element;
+  }, //eslint-disable-next-line
+  []);
+  return [node, setNodeRef];
+}
+
+function usePrevious(value) {
+  const ref = react.useRef();
+  react.useEffect(() => {
+    ref.current = value;
+  }, [value]);
+  return ref.current;
+}
+
+let ids = {};
+function useUniqueId(prefix, value) {
+  return react.useMemo(() => {
+    if (value) {
+      return value;
+    }
+
+    const id = ids[prefix] == null ? 0 : ids[prefix] + 1;
+    ids[prefix] = id;
+    return prefix + "-" + id;
+  }, [prefix, value]);
+}
+
+function createAdjustmentFn(modifier) {
+  return function (object) {
+    for (var _len = arguments.length, adjustments = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      adjustments[_key - 1] = arguments[_key];
+    }
+
+    return adjustments.reduce((accumulator, adjustment) => {
+      const entries = Object.entries(adjustment);
+
+      for (const [key, valueAdjustment] of entries) {
+        const value = accumulator[key];
+
+        if (value != null) {
+          accumulator[key] = value + modifier * valueAdjustment;
+        }
+      }
+
+      return accumulator;
+    }, { ...object
+    });
+  };
+}
+
+const add = /*#__PURE__*/createAdjustmentFn(1);
+const subtract = /*#__PURE__*/createAdjustmentFn(-1);
+
+function hasViewportRelativeCoordinates(event) {
+  return 'clientX' in event && 'clientY' in event;
+}
+
+function isKeyboardEvent(event) {
+  if (!event) {
+    return false;
+  }
+
+  const {
+    KeyboardEvent
+  } = getWindow(event.target);
+  return KeyboardEvent && event instanceof KeyboardEvent;
+}
+
+function isTouchEvent(event) {
+  if (!event) {
+    return false;
+  }
+
+  const {
+    TouchEvent
+  } = getWindow(event.target);
+  return TouchEvent && event instanceof TouchEvent;
+}
+
+/**
+ * Returns the normalized x and y coordinates for mouse and touch events.
+ */
+
+function getEventCoordinates(event) {
+  if (isTouchEvent(event)) {
+    if (event.touches && event.touches.length) {
+      const {
+        clientX: x,
+        clientY: y
+      } = event.touches[0];
+      return {
+        x,
+        y
+      };
+    } else if (event.changedTouches && event.changedTouches.length) {
+      const {
+        clientX: x,
+        clientY: y
+      } = event.changedTouches[0];
+      return {
+        x,
+        y
+      };
+    }
+  }
+
+  if (hasViewportRelativeCoordinates(event)) {
+    return {
+      x: event.clientX,
+      y: event.clientY
+    };
+  }
+
+  return null;
+}
+
+const CSS = /*#__PURE__*/Object.freeze({
+  Translate: {
+    toString(transform) {
+      if (!transform) {
+        return;
+      }
+
+      const {
+        x,
+        y
+      } = transform;
+      return "translate3d(" + (x ? Math.round(x) : 0) + "px, " + (y ? Math.round(y) : 0) + "px, 0)";
+    }
+
+  },
+  Scale: {
+    toString(transform) {
+      if (!transform) {
+        return;
+      }
+
+      const {
+        scaleX,
+        scaleY
+      } = transform;
+      return "scaleX(" + scaleX + ") scaleY(" + scaleY + ")";
+    }
+
+  },
+  Transform: {
+    toString(transform) {
+      if (!transform) {
+        return;
+      }
+
+      return [CSS.Translate.toString(transform), CSS.Scale.toString(transform)].join(' ');
+    }
+
+  },
+  Transition: {
+    toString(_ref) {
+      let {
+        property,
+        duration,
+        easing
+      } = _ref;
+      return property + " " + duration + "ms " + easing;
+    }
+
+  }
+});
+
+const SELECTOR = 'a,frame,iframe,input:not([type=hidden]):not(:disabled),select:not(:disabled),textarea:not(:disabled),button:not(:disabled),*[tabindex]';
+function findFirstFocusableNode(element) {
+  if (element.matches(SELECTOR)) {
+    return element;
+  }
+
+  return element.querySelector(SELECTOR);
+}
+
+exports.CSS = CSS;
+exports.add = add;
+exports.canUseDOM = canUseDOM;
+exports.findFirstFocusableNode = findFirstFocusableNode;
+exports.getEventCoordinates = getEventCoordinates;
+exports.getOwnerDocument = getOwnerDocument;
+exports.getWindow = getWindow;
+exports.hasViewportRelativeCoordinates = hasViewportRelativeCoordinates;
+exports.isDocument = isDocument;
+exports.isHTMLElement = isHTMLElement;
+exports.isKeyboardEvent = isKeyboardEvent;
+exports.isNode = isNode;
+exports.isSVGElement = isSVGElement;
+exports.isTouchEvent = isTouchEvent;
+exports.isWindow = isWindow;
+exports.subtract = subtract;
+exports.useCombinedRefs = useCombinedRefs;
+exports.useEvent = useEvent;
+exports.useInterval = useInterval;
+exports.useIsomorphicLayoutEffect = useIsomorphicLayoutEffect;
+exports.useLatestValue = useLatestValue;
+exports.useLazyMemo = useLazyMemo;
+exports.useNodeRef = useNodeRef;
+exports.usePrevious = usePrevious;
+exports.useUniqueId = useUniqueId;
+//# sourceMappingURL=utilities.cjs.development.js.map