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import './fit-textareas.css';
import {isSafari} from 'webext-detect-page';
import fitTextarea from 'fit-textarea';
import * as pageDetect from 'github-url-detection';
import features from '../feature-manager.js';
import observe from '../helpers/selector-observer.js';
function resetListener({target}: Event): void {
const field = (target as HTMLFormElement).querySelector('textarea')!;
// Delay because the field is still filled while the `reset` event is firing
setTimeout(fitTextarea, 0, field);
}
function inputListener({target}: Event): void {
fitTextarea(target as HTMLTextAreaElement);
}
function watchTextarea(textarea: HTMLTextAreaElement, {signal}: SignalAsOptions): void {
textarea.addEventListener('input', inputListener, {signal}); // The user triggers `input` event
textarea.addEventListener('change', inputListener, {signal}); // File uploads trigger `change` events
textarea.form?.addEventListener('reset', resetListener, {signal});
fitTextarea(textarea);
// Disable constrained native feature
textarea.classList.replace('js-size-to-fit', 'rgh-fit-textareas');
}
function init(signal: AbortSignal): void {
// Exclude PR review box because it's in a `position:fixed` container;
// The scroll HAS to appear within the fixed element.
observe('textarea:not(#pull_request_review_body)', watchTextarea, {signal});
}
void features.add(import.meta.url, {
include: [
pageDetect.hasRichTextEditor,
],
exclude: [
isSafari,
],
init,
});
/*
Test URLs:
https://github.com/refined-github/sandbox/issues/3
*/
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