// packages/block-editor/src/components/rich-text/multiline.js
import { forwardRef } from "@wordpress/element";
import deprecated from "@wordpress/deprecated";
import { useDispatch, useSelect } from "@wordpress/data";
import { ENTER } from "@wordpress/keycodes";
import { create, split, toHTMLString } from "@wordpress/rich-text";
import { RichTextWrapper } from "./";
import { store as blockEditorStore } from "../../store";
import { useBlockEditContext } from "../block-edit";
import { getMultilineTag } from "./utils";
import { jsx } from "react/jsx-runtime";
function RichTextMultiline({
  children,
  identifier,
  tagName: TagName = "div",
  value = "",
  onChange,
  multiline,
  ...props
}, forwardedRef) {
  deprecated("wp.blockEditor.RichText multiline prop", {
    since: "6.1",
    version: "6.3",
    alternative: "nested blocks (InnerBlocks)",
    link: "https://developer.wordpress.org/block-editor/how-to-guides/block-tutorial/nested-blocks-inner-blocks/"
  });
  const { clientId } = useBlockEditContext();
  const { getSelectionStart, getSelectionEnd } = useSelect(blockEditorStore);
  const { selectionChange } = useDispatch(blockEditorStore);
  const multilineTagName = getMultilineTag(multiline);
  value = value || `<${multilineTagName}></${multilineTagName}>`;
  const padded = `</${multilineTagName}>${value}<${multilineTagName}>`;
  const values = padded.split(
    `</${multilineTagName}><${multilineTagName}>`
  );
  values.shift();
  values.pop();
  function _onChange(newValues) {
    onChange(
      `<${multilineTagName}>${newValues.join(
        `</${multilineTagName}><${multilineTagName}>`
      )}</${multilineTagName}>`
    );
  }
  return /* @__PURE__ */ jsx(TagName, { ref: forwardedRef, children: values.map((_value, index) => {
    return /* @__PURE__ */ jsx(
      RichTextWrapper,
      {
        identifier: `${identifier}-${index}`,
        tagName: multilineTagName,
        value: _value,
        onChange: (newValue) => {
          const newValues = values.slice();
          newValues[index] = newValue;
          _onChange(newValues);
        },
        isSelected: void 0,
        onKeyDown: (event) => {
          if (event.keyCode !== ENTER) {
            return;
          }
          event.preventDefault();
          const { offset: start } = getSelectionStart();
          const { offset: end } = getSelectionEnd();
          if (typeof start !== "number" || typeof end !== "number") {
            return;
          }
          const richTextValue = create({ html: _value });
          richTextValue.start = start;
          richTextValue.end = end;
          const array = split(richTextValue).map(
            (v) => toHTMLString({ value: v })
          );
          const newValues = values.slice();
          newValues.splice(index, 1, ...array);
          _onChange(newValues);
          selectionChange(
            clientId,
            `${identifier}-${index + 1}`,
            0,
            0
          );
        },
        onMerge: (forward) => {
          const newValues = values.slice();
          let offset = 0;
          if (forward) {
            if (!newValues[index + 1]) {
              return;
            }
            newValues.splice(
              index,
              2,
              newValues[index] + newValues[index + 1]
            );
            offset = newValues[index].length - 1;
          } else {
            if (!newValues[index - 1]) {
              return;
            }
            newValues.splice(
              index - 1,
              2,
              newValues[index - 1] + newValues[index]
            );
            offset = newValues[index - 1].length - 1;
          }
          _onChange(newValues);
          selectionChange(
            clientId,
            `${identifier}-${index - (forward ? 0 : 1)}`,
            offset,
            offset
          );
        },
        ...props
      },
      index
    );
  }) });
}
var multiline_default = forwardRef(RichTextMultiline);
export {
  multiline_default as default
};
//# sourceMappingURL=multiline.js.map
