@wordpress/block-editor/build/hooks/custom-class-name.js

Generic block editor.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.addAttribute = addAttribute;
exports.addSaveProps = addSaveProps;
exports.addTransforms = addTransforms;
exports.withInspectorControl = void 0;

var _element = require("@wordpress/element");

var _classnames = _interopRequireDefault(require("classnames"));

var _hooks = require("@wordpress/hooks");

var _components = require("@wordpress/components");

var _i18n = require("@wordpress/i18n");

var _blocks = require("@wordpress/blocks");

var _compose = require("@wordpress/compose");

var _components2 = require("../components");

var _blockEditingMode = require("../components/block-editing-mode");

/**
 * External dependencies
 */

/**
 * WordPress dependencies
 */

/**
 * Internal dependencies
 */

/**
 * Filters registered block settings, extending attributes to include `className`.
 *
 * @param {Object} settings Original block settings.
 *
 * @return {Object} Filtered block settings.
 */
function addAttribute(settings) {
  if ((0, _blocks.hasBlockSupport)(settings, 'customClassName', true)) {
    // Gracefully handle if settings.attributes is undefined.
    settings.attributes = { ...settings.attributes,
      className: {
        type: 'string'
      }
    };
  }

  return settings;
}
/**
 * Override the default edit UI to include a new block inspector control for
 * assigning the custom class name, if block supports custom class name.
 * The control is displayed within the Advanced panel in the block inspector.
 *
 * @param {WPComponent} BlockEdit Original component.
 *
 * @return {WPComponent} Wrapped component.
 */


const withInspectorControl = (0, _compose.createHigherOrderComponent)(BlockEdit => {
  return props => {
    const blockEditingMode = (0, _blockEditingMode.useBlockEditingMode)();
    const hasCustomClassName = (0, _blocks.hasBlockSupport)(props.name, 'customClassName', true);

    if (hasCustomClassName && props.isSelected) {
      return (0, _element.createElement)(_element.Fragment, null, (0, _element.createElement)(BlockEdit, props), blockEditingMode === 'default' && (0, _element.createElement)(_components2.InspectorControls, {
        group: "advanced"
      }, (0, _element.createElement)(_components.TextControl, {
        __nextHasNoMarginBottom: true,
        autoComplete: "off",
        label: (0, _i18n.__)('Additional CSS class(es)'),
        value: props.attributes.className || '',
        onChange: nextValue => {
          props.setAttributes({
            className: nextValue !== '' ? nextValue : undefined
          });
        },
        help: (0, _i18n.__)('Separate multiple classes with spaces.')
      })));
    }

    return (0, _element.createElement)(BlockEdit, props);
  };
}, 'withInspectorControl');
/**
 * Override props assigned to save component to inject the className, if block
 * supports customClassName. This is only applied if the block's save result is an
 * element and not a markup string.
 *
 * @param {Object} extraProps Additional props applied to save element.
 * @param {Object} blockType  Block type.
 * @param {Object} attributes Current block attributes.
 *
 * @return {Object} Filtered props applied to save element.
 */

exports.withInspectorControl = withInspectorControl;

function addSaveProps(extraProps, blockType, attributes) {
  if ((0, _blocks.hasBlockSupport)(blockType, 'customClassName', true) && attributes.className) {
    extraProps.className = (0, _classnames.default)(extraProps.className, attributes.className);
  }

  return extraProps;
}

function addTransforms(result, source, index, results) {
  if (!(0, _blocks.hasBlockSupport)(result.name, 'customClassName', true)) {
    return result;
  } // If the condition verifies we are probably in the presence of a wrapping transform
  // e.g: nesting paragraphs in a group or columns and in that case the class should not be kept.


  if (results.length === 1 && result.innerBlocks.length === source.length) {
    return result;
  } // If we are transforming one block to multiple blocks or multiple blocks to one block,
  // we ignore the class during the transform.


  if (results.length === 1 && source.length > 1 || results.length > 1 && source.length === 1) {
    return result;
  } // If we are in presence of transform between one or more block in the source
  // that have one or more blocks in the result
  // we apply the class on source N to the result N,
  // if source N does not exists we do nothing.


  if (source[index]) {
    const originClassName = source[index]?.attributes.className;

    if (originClassName) {
      return { ...result,
        attributes: { ...result.attributes,
          className: originClassName
        }
      };
    }
  }

  return result;
}

(0, _hooks.addFilter)('blocks.registerBlockType', 'core/custom-class-name/attribute', addAttribute);
(0, _hooks.addFilter)('editor.BlockEdit', 'core/editor/custom-class-name/with-inspector-control', withInspectorControl);
(0, _hooks.addFilter)('blocks.getSaveContent.extraProps', 'core/custom-class-name/save-props', addSaveProps);
(0, _hooks.addFilter)('blocks.switchToBlockType.transformedBlock', 'core/color/addTransforms', addTransforms);
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