@wordpress/block-library/build-module/buttons/transforms.js

Block library for the WordPress editor.

/**
 * WordPress dependencies
 */
import { createBlock } from '@wordpress/blocks';
import { __unstableCreateElement as createElement } from '@wordpress/rich-text';
/**
 * Internal dependencies
 */

const {
  name: name
} = {
  $schema: "https://schemas.wp.org/trunk/block.json",
  apiVersion: 2,
  name: "core/buttons",
  title: "Buttons",
  category: "design",
  description: "Prompt visitors to take action with a group of button-style links.",
  keywords: ["link"],
  textdomain: "default",
  supports: {
    anchor: true,
    align: ["wide", "full"],
    __experimentalExposeControlsToChildren: true,
    spacing: {
      blockGap: true,
      margin: ["top", "bottom"],
      __experimentalDefaultControls: {
        blockGap: true
      }
    },
    typography: {
      fontSize: true,
      lineHeight: true,
      __experimentalFontFamily: true,
      __experimentalFontWeight: true,
      __experimentalFontStyle: true,
      __experimentalTextTransform: true,
      __experimentalTextDecoration: true,
      __experimentalLetterSpacing: true,
      __experimentalDefaultControls: {
        fontSize: true
      }
    },
    __experimentalLayout: {
      allowSwitching: false,
      allowInheriting: false,
      "default": {
        type: "flex"
      }
    }
  },
  editorStyle: "wp-block-buttons-editor",
  style: "wp-block-buttons"
};
const transforms = {
  from: [{
    type: 'block',
    isMultiBlock: true,
    blocks: ['core/button'],
    transform: buttons => // Creates the buttons block.
    createBlock(name, {}, // Loop the selected buttons.
    buttons.map(attributes => // Create singular button in the buttons block.
    createBlock('core/button', attributes)))
  }, {
    type: 'block',
    isMultiBlock: true,
    blocks: ['core/paragraph'],
    transform: buttons => // Creates the buttons block.
    createBlock(name, {}, // Loop the selected buttons.
    buttons.map(attributes => {
      const element = createElement(document, attributes.content); // Remove any HTML tags.

      const text = element.innerText || ''; // Get first url.

      const link = element.querySelector('a');
      const url = link === null || link === void 0 ? void 0 : link.getAttribute('href'); // Create singular button in the buttons block.

      return createBlock('core/button', {
        text,
        url
      });
    })),
    isMatch: paragraphs => {
      return paragraphs.every(attributes => {
        const element = createElement(document, attributes.content);
        const text = element.innerText || '';
        const links = element.querySelectorAll('a');
        return text.length <= 30 && links.length <= 1;
      });
    }
  }]
};
export default transforms;
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