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import React from 'dom-chef';
import select from 'select-dom';
import delegate from 'delegate-it';
import FoldDownIcon from 'octicon/fold-down.svg';
import * as pageDetect from 'github-url-detection';
import * as textFieldEdit from 'text-field-edit';
import features from '.';
import smartBlockWrap from '../helpers/smart-block-wrap';
function addContentToDetails(event: delegate.Event<MouseEvent, HTMLButtonElement>): void {
const field = event.delegateTarget.form!.querySelector('textarea')!;
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>
`.replace(/(\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 init(): void {
delegate(document, '.rgh-collapsible-content-btn', 'click', addContentToDetails);
for (const anchor of select.all('md-ref')) {
anchor.after(
<button type="button" className="toolbar-item tooltipped tooltipped-n rgh-collapsible-content-btn" aria-label="Add collapsible content">
<FoldDownIcon/>
</button>
);
}
}
void features.add(__filebasename, {
include: [
pageDetect.hasRichTextEditor
],
init
});
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