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import React from 'dom-chef';
import select from 'select-dom';
import onetime from 'onetime';
import delegate from 'delegate-it';
import * as pageDetect from 'github-url-detection';
import features from '.';
import {onCommentFieldKeydown} from '../github-events/on-field-keydown';
function eventHandler(event: delegate.Event<KeyboardEvent, HTMLTextAreaElement>): void {
const field = event.delegateTarget;
if (event.key === 'Escape') {
// Cancel buttons have different classes for inline comments and editable comments
const cancelButton = select(`
button.js-hide-inline-comment-form,
button.js-comment-cancel-button
`, field.form!);
// Cancel if there is a button, else blur the field
if (cancelButton) {
cancelButton.click();
} else {
field.blur();
}
event.stopImmediatePropagation();
event.preventDefault();
} else if (event.key === 'ArrowUp' && field.value === '') {
const currentConversationContainer = field.closest([
'.js-inline-comments-container', // Current review thread container
'#discussion_bucket', // Or just ALL the comments in issues
'#all_commit_comments', // Single commit comments at the bottom
].join(','))!;
const lastOwnComment = select
.all('.js-comment.current-user', currentConversationContainer)
.reverse()
.find(comment => {
const collapsible = comment.closest('details');
return !collapsible || collapsible.open;
});
if (lastOwnComment) {
// Make the comment editable (the native edit button might not be available yet)
const editButton = <button hidden type="button" className="js-comment-edit-button"/>;
lastOwnComment.append(editButton);
editButton.click();
editButton.remove();
field
.closest('form')!
.querySelector('button.js-hide-inline-comment-form')
?.click();
// Move caret to end of field
requestAnimationFrame(() => {
select('textarea.js-comment-field', lastOwnComment)!.selectionStart = Number.MAX_SAFE_INTEGER;
});
}
}
}
function init(): void {
onCommentFieldKeydown(eventHandler);
}
void features.add(__filebasename, {
shortcuts: {
'↑': 'Edit your last comment',
esc: 'Unfocuses comment field',
},
include: [
pageDetect.hasRichTextEditor,
],
awaitDomReady: false,
deduplicate: 'has-rgh-inner',
init: onetime(init),
});
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