@wordpress/block-editor/build-module/components/block-toolbar/utils.mjs

Generic block editor.

// packages/block-editor/src/components/block-toolbar/utils.js
import { useSelect, useDispatch } from "@wordpress/data";
import { useState, useRef, useEffect } from "@wordpress/element";
import { store as blockEditorStore } from "../../store/index.mjs";
var { clearTimeout, setTimeout } = window;
var DEBOUNCE_TIMEOUT = 200;
function useDebouncedShowGestures({
  ref,
  isFocused,
  highlightParent,
  debounceTimeout = DEBOUNCE_TIMEOUT
}) {
  const { getSelectedBlockClientId, getBlockRootClientId } = useSelect(blockEditorStore);
  const { toggleBlockHighlight } = useDispatch(blockEditorStore);
  const timeoutRef = useRef();
  const isDistractionFree = useSelect(
    (select) => select(blockEditorStore).getSettings().isDistractionFree,
    []
  );
  const handleOnChange = (nextIsFocused) => {
    if (nextIsFocused && isDistractionFree) {
      return;
    }
    const selectedBlockClientId = getSelectedBlockClientId();
    const clientId = highlightParent ? getBlockRootClientId(selectedBlockClientId) : selectedBlockClientId;
    toggleBlockHighlight(clientId, nextIsFocused);
  };
  const getIsHovered = () => {
    return ref?.current && ref.current.matches(":hover");
  };
  const shouldHideGestures = () => {
    const isHovered = getIsHovered();
    return !isFocused && !isHovered;
  };
  const clearTimeoutRef = () => {
    const timeout = timeoutRef.current;
    if (timeout && clearTimeout) {
      clearTimeout(timeout);
    }
  };
  const debouncedShowGestures = (event) => {
    if (event) {
      event.stopPropagation();
    }
    clearTimeoutRef();
    handleOnChange(true);
  };
  const debouncedHideGestures = (event) => {
    if (event) {
      event.stopPropagation();
    }
    clearTimeoutRef();
    timeoutRef.current = setTimeout(() => {
      if (shouldHideGestures()) {
        handleOnChange(false);
      }
    }, debounceTimeout);
  };
  useEffect(
    () => () => {
      handleOnChange(false);
      clearTimeoutRef();
    },
    []
  );
  return {
    debouncedShowGestures,
    debouncedHideGestures
  };
}
function useShowHoveredOrFocusedGestures({
  ref,
  highlightParent = false,
  debounceTimeout = DEBOUNCE_TIMEOUT
}) {
  const [isFocused, setIsFocused] = useState(false);
  const { debouncedShowGestures, debouncedHideGestures } = useDebouncedShowGestures({
    ref,
    debounceTimeout,
    isFocused,
    highlightParent
  });
  const registerRef = useRef(false);
  const isFocusedWithin = () => {
    return ref?.current && ref.current.contains(ref.current.ownerDocument.activeElement);
  };
  useEffect(() => {
    const node = ref.current;
    const handleOnFocus = () => {
      if (isFocusedWithin()) {
        setIsFocused(true);
        debouncedShowGestures();
      }
    };
    const handleOnBlur = () => {
      if (!isFocusedWithin()) {
        setIsFocused(false);
        debouncedHideGestures();
      }
    };
    if (node && !registerRef.current) {
      node.addEventListener("focus", handleOnFocus, true);
      node.addEventListener("blur", handleOnBlur, true);
      registerRef.current = true;
    }
    return () => {
      if (node) {
        node.removeEventListener("focus", handleOnFocus);
        node.removeEventListener("blur", handleOnBlur);
      }
    };
  }, [
    ref,
    registerRef,
    setIsFocused,
    debouncedShowGestures,
    debouncedHideGestures
  ]);
  return {
    onMouseMove: debouncedShowGestures,
    onMouseLeave: debouncedHideGestures
  };
}
export {
  useShowHoveredOrFocusedGestures
};
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