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import React from 'dom-chef';
import {FoldDownIcon} from '@primer/octicons-react';
import * as pageDetect from 'github-url-detection';
import * as textFieldEdit from 'text-field-edit';
import delegate, {DelegateEvent} from 'delegate-it';
import features from '../feature-manager.js';
import smartBlockWrap from '../helpers/smart-block-wrap.js';
import observe from '../helpers/selector-observer.js';
function addContentToDetails({delegateTarget}: DelegateEvent<MouseEvent, HTMLButtonElement>): void {
/* There's only one rich-text editor even when multiple fields are visible; the class targets it #5303 */
const field = delegateTarget.form!.querySelector('textarea.js-comment-field')!;
const selection = field.value.slice(field.selectionStart, field.selectionEnd);
// Don't indent <summary> because indentation will not be automatic on multi-line content
const newContent = `
<details>
<summary>Details</summary>
${selection}
</details>
`.replaceAll(/(\n|\b)\t+/g, '$1').trim();
field.focus();
textFieldEdit.insert(field, smartBlockWrap(newContent, field));
// Restore selection.
// `selectionStart` will be right after the newly-inserted text
field.setSelectionRange(
field.value.lastIndexOf('</summary>', field.selectionStart) + '</summary>'.length + 2,
field.value.lastIndexOf('</details>', field.selectionStart) - 2,
);
}
function addButtons(referenceButton: HTMLElement): void {
referenceButton.after(
<button type="button" className="toolbar-item btn-octicon p-2 p-md-1 tooltipped tooltipped-sw rgh-collapsible-content-btn" aria-label="Add collapsible content">
<FoldDownIcon/>
</button>,
);
}
function init(signal: AbortSignal): void {
observe('md-ref', addButtons, {signal});
delegate('.rgh-collapsible-content-btn', 'click', addContentToDetails, {signal});
}
void features.add(import.meta.url, {
include: [
pageDetect.hasRichTextEditor,
],
init,
});
/*
Test URLs:
- Any issue or PR
*/
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