/
headingconfig.ts
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/
headingconfig.ts
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/**
* @license Copyright (c) 2003-2024, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
/**
* @module heading/headingconfig
*/
import type { ArrayOrItem } from 'ckeditor5/src/utils.js';
import type { MatcherPattern, ViewElementDefinition } from 'ckeditor5/src/engine.js';
/**
* The configuration of the heading feature.
* The option is used by the {@link module:heading/headingediting~HeadingEditing} feature.
*
* ```ts
* ClassicEditor
* .create( {
* heading: ... // Heading feature config.
* } )
* .then( ... )
* .catch( ... );
* ```
*
* See {@link module:core/editor/editorconfig~EditorConfig all editor options}.
*/
export interface HeadingConfig {
/**
* The available heading options.
*
* The default value is:
* ```ts
* const headingConfig = {
* options: [
* { model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },
* { model: 'heading1', view: 'h2', title: 'Heading 1', class: 'ck-heading_heading1' },
* { model: 'heading2', view: 'h3', title: 'Heading 2', class: 'ck-heading_heading2' },
* { model: 'heading3', view: 'h4', title: 'Heading 3', class: 'ck-heading_heading3' }
* ]
* };
* ```
*
* It defines 3 levels of headings. In the editor model they will use `heading1`, `heading2`, and `heading3` elements.
* Their respective view elements (so the elements output by the editor) will be: `h2`, `h3`, and `h4`. This means that
* if you choose "Heading 1" in the headings dropdown the editor will turn the current block to `<heading1>` in the model
* which will result in rendering (and outputting to data) the `<h2>` element.
*
* The `title` and `class` properties will be used by the `headings` dropdown to render available options.
* Usually, the first option in the headings dropdown is the "Paragraph" option, hence it's also defined on the list.
* However, you don't need to define its view representation because it's handled by
* the {@link module:paragraph/paragraph~Paragraph} feature (which is required by
* the {@link module:heading/headingediting~HeadingEditing} feature).
*
* You can **read more** about configuring heading levels and **see more examples** in
* the {@glink features/headings Headings} guide.
*
* Note: In the model you should always start from `heading1`, regardless of how the headings are represented in the view.
* That's assumption is used by features like {@link module:autoformat/autoformat~Autoformat} to know which element
* they should use when applying the first level heading.
*
* The defined headings are also available as values passed to the `'heading'` command under their model names.
* For example, the below code will apply `<heading1>` to the current selection:
*
* ```ts
* editor.execute( 'heading', { value: 'heading1' } );
* ```
*/
options?: Array<HeadingOption>;
}
/**
* Heading option descriptor.
*/
export type HeadingOption = HeadingElementOption | HeadingParagraphOption | HeadingCustomElementOption;
export interface HeadingElementOption {
/**
* Name of the model element to convert.
*/
model: 'heading1' | 'heading2' | 'heading3' | 'heading4' | 'heading5' | 'heading6';
/**
* Definition of a view element to convert from/to.
*/
view: ViewElementDefinition;
/**
* The user-readable title of the option.
*/
title: string;
/**
* The class which will be added to the dropdown item representing this option.
*/
class: string;
/**
* Icon used by {@link module:heading/headingbuttonsui~HeadingButtonsUI}. It can be omitted when using the default configuration.
*/
icon?: string;
/**
* An array with all matched elements that the view-to-model conversion should also accept.
*/
upcastAlso?: ArrayOrItem<ViewElementDefinition | MatcherPattern>;
}
export interface HeadingCustomElementOption {
/**
* Name of the model element to convert.
*/
model: `heading${ string }`;
/**
* Definition of a view element to convert from/to.
*/
view: ViewElementDefinition;
/**
* The user-readable title of the option.
*/
title: string;
/**
* The class which will be added to the dropdown item representing this option.
*/
class: string;
/**
* Icon used by {@link module:heading/headingbuttonsui~HeadingButtonsUI}. It can be omitted when using the default configuration.
*/
icon?: string;
/**
* An array with all matched elements that the view-to-model conversion should also accept.
*/
upcastAlso?: ArrayOrItem<ViewElementDefinition | MatcherPattern>;
}
export interface HeadingParagraphOption {
/**
* Name of the model element to convert.
*/
model: 'paragraph';
/**
* The user-readable title of the option.
*/
title: string;
/**
* The class which will be added to the dropdown item representing this option.
* */
class: string;
/**
* Icon used by {@link module:heading/headingbuttonsui~HeadingButtonsUI}. It can be omitted when using the default configuration.
*/
icon?: string;
/**
* An array with all matched elements that the view-to-model conversion should also accept.
*/
upcastAlso?: ArrayOrItem<ViewElementDefinition | MatcherPattern>;
}