@wordpress/block-library/build-module/math/edit.mjs

Block library for the WordPress editor.

// packages/block-library/src/math/edit.js
import { __ } from "@wordpress/i18n";
import {
  useBlockProps,
  store as blockEditorStore
} from "@wordpress/block-editor";
import {
  Popover,
  privateApis as componentsPrivateApis
} from "@wordpress/components";
import { useState, useEffect, useRef } from "@wordpress/element";
import { useDispatch } from "@wordpress/data";
import { unlock } from "../lock-unlock.mjs";
import { jsx, jsxs } from "react/jsx-runtime";
var { ValidatedTextareaControl } = unlock(componentsPrivateApis);
function MathEdit({ attributes, setAttributes, isSelected }) {
  const { latex, mathML } = attributes;
  const [blockRef, setBlockRef] = useState();
  const [error, setError] = useState(null);
  const [latexToMathML, setLatexToMathML] = useState();
  const initialLatex = useRef(latex);
  const formRef = useRef();
  const { __unstableMarkNextChangeAsNotPersistent } = useDispatch(blockEditorStore);
  useEffect(() => {
    import("@wordpress/latex-to-mathml").then((module) => {
      setLatexToMathML(() => module.default);
      if (initialLatex.current) {
        __unstableMarkNextChangeAsNotPersistent();
        setAttributes({
          mathML: module.default(initialLatex.current, {
            displayMode: true
          })
        });
      }
    });
  }, [
    initialLatex,
    setAttributes,
    __unstableMarkNextChangeAsNotPersistent
  ]);
  const blockProps = useBlockProps({
    ref: setBlockRef,
    position: "relative"
  });
  return /* @__PURE__ */ jsxs("div", { ...blockProps, children: [
    mathML ? /* @__PURE__ */ jsx(
      "math",
      {
        display: "block",
        dangerouslySetInnerHTML: { __html: mathML }
      }
    ) : "​",
    isSelected && /* @__PURE__ */ jsx(
      Popover,
      {
        placement: "bottom-start",
        offset: 8,
        anchor: blockRef,
        focusOnMount: false,
        onFocusOutside: () => formRef.current?.reportValidity(),
        __unstableSlotName: "__unstable-block-tools-after",
        children: /* @__PURE__ */ jsx(
          "form",
          {
            ref: formRef,
            style: { padding: "4px", minWidth: "300px" },
            onSubmit: (event) => event.preventDefault(),
            children: /* @__PURE__ */ jsx(
              ValidatedTextareaControl,
              {
                label: __("LaTeX math syntax"),
                hideLabelFromVision: true,
                value: latex,
                className: "wp-block-math__textarea-control",
                customValidity: error ? { type: "invalid", message: error } : void 0,
                onChange: (newLatex) => {
                  if (!latexToMathML) {
                    setAttributes({ latex: newLatex });
                    return;
                  }
                  let newMathML = "";
                  try {
                    newMathML = latexToMathML(newLatex, {
                      displayMode: true
                    });
                    setError(null);
                  } catch (err) {
                    setError(err.message);
                  }
                  setAttributes({
                    mathML: newMathML,
                    latex: newLatex
                  });
                },
                placeholder: __("e.g., x^2, \\frac{a}{b}")
              }
            )
          }
        )
      }
    )
  ] });
}
export {
  MathEdit as default
};
//# sourceMappingURL=edit.mjs.map