@gechiui/block-editor/build/components/rich-text/split-value.js

Generic block editor.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.splitValue = splitValue;

var _richText = require("@gechiui/rich-text");

/**
 * GeChiUI dependencies
 */

/*
 * Signals to the RichText owner that the block can be replaced with two blocks
 * as a result of splitting the block by pressing enter, or with blocks as a
 * result of splitting the block by pasting block content in the instance.
 */
function splitValue(_ref) {
  let {
    value,
    pastedBlocks = [],
    onReplace,
    onSplit,
    onSplitMiddle,
    multilineTag
  } = _ref;

  if (!onReplace || !onSplit) {
    return;
  }

  const blocks = [];
  const [before, after] = (0, _richText.split)(value);
  const hasPastedBlocks = pastedBlocks.length > 0;
  let lastPastedBlockIndex = -1; // Consider the after value to be the original it is not empty and the
  // before value *is* empty.

  const isAfterOriginal = (0, _richText.isEmpty)(before) && !(0, _richText.isEmpty)(after); // Create a block with the content before the caret if there's no pasted
  // blocks, or if there are pasted blocks and the value is not empty. We do
  // not want a leading empty block on paste, but we do if split with e.g. the
  // enter key.

  if (!hasPastedBlocks || !(0, _richText.isEmpty)(before)) {
    blocks.push(onSplit((0, _richText.toHTMLString)({
      value: before,
      multilineTag
    }), !isAfterOriginal));
    lastPastedBlockIndex += 1;
  }

  if (hasPastedBlocks) {
    blocks.push(...pastedBlocks);
    lastPastedBlockIndex += pastedBlocks.length;
  } else if (onSplitMiddle) {
    blocks.push(onSplitMiddle());
  } // If there's pasted blocks, append a block with non empty content / after
  // the caret. Otherwise, do append an empty block if there is no
  // `onSplitMiddle` prop, but if there is and the content is empty, the
  // middle block is enough to set focus in.


  if (hasPastedBlocks ? !(0, _richText.isEmpty)(after) : !onSplitMiddle || !(0, _richText.isEmpty)(after)) {
    blocks.push(onSplit((0, _richText.toHTMLString)({
      value: after,
      multilineTag
    }), isAfterOriginal));
  } // If there are pasted blocks, set the selection to the last one. Otherwise,
  // set the selection to the second block.


  const indexToSelect = hasPastedBlocks ? lastPastedBlockIndex : 1; // If there are pasted blocks, move the caret to the end of the selected
  // block Otherwise, retain the default value.

  const initialPosition = hasPastedBlocks ? -1 : 0;
  onReplace(blocks, indexToSelect, initialPosition);
}
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