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import './table-input.css';
import React from 'dom-chef';
import {TableIcon} 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';
import {isHasSelectorSupported} from '../helpers/select-has.js';
function addTable({delegateTarget: square}: DelegateEvent<MouseEvent, HTMLButtonElement>): void {
/* There's only one rich-text editor even when multiple fields are visible; the class targets it #5303 */
const field = square.form!.querySelector('textarea.js-comment-field')!;
const cursorPosition = field.selectionStart;
const columns = Number(square.dataset.x);
const rows = Number(square.dataset.y);
const row = columns === 1
// One HTML line per row
? '<tr><td>\n'
// <tr> on its own line
// "1 space" indents without causing unwanted Markdown code blocks that 4 spaces would cause
: '<tr>\n' + ' <td>\n'.repeat(columns);
field.focus();
const table = '<table>\n' + row.repeat(rows) + '</table>';
textFieldEdit.insert(field, smartBlockWrap(table, field));
// Move caret to first cell
field.selectionEnd = field.value.indexOf('<td>', cursorPosition) + '<td>'.length;
}
function highlightSquares({delegateTarget: hover}: DelegateEvent<MouseEvent, HTMLElement>): void {
for (const cell of hover.parentElement!.children as HTMLCollectionOf<HTMLButtonElement>) {
cell.classList.toggle('selected', cell.dataset.x! <= hover.dataset.x! && cell.dataset.y! <= hover.dataset.y!);
}
}
function add(anchor: HTMLElement): void {
anchor.after(
<details className="details-reset details-overlay flex-auto toolbar-item btn-octicon mx-1 select-menu select-menu-modal-right hx_rsm">
<summary
className="text-center menu-target p-2 p-md-1 hx_rsm-trigger"
role="button"
aria-label="Add a table"
aria-haspopup="menu"
>
<div
className="tooltipped tooltipped-sw"
aria-label="Add a table"
>
<TableIcon/>
</div>
</summary>
<details-menu className="select-menu-modal position-absolute left-0 hx_rsm-modal rgh-table-input" role="menu">
{Array.from({length: 25}).map((_, index) => (
<button
type="button"
role="menuitem"
className="rgh-tic btn-link"
data-x={(index % 5) + 1}
data-y={Math.floor(index / 5) + 1}
>
<div/>
</button>
))}
</details-menu>
</details>,
);
}
function init(signal: AbortSignal): void {
observe('md-ref', add, {signal});
delegate('.rgh-tic', 'click', addTable, {signal});
if (!isHasSelectorSupported()) {
delegate('.rgh-tic', 'mouseenter', highlightSquares, {capture: true, signal});
}
}
void features.add(import.meta.url, {
include: [
pageDetect.hasRichTextEditor,
],
init,
});
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