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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-comment-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<HTMLButtonElement>(`
.js-hide-inline-comment-form,
.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-timeline', // Or just ALL the comments in issues
'#all_commit_comments' // Single commit comments at the bottom
].join())!;
const lastOwnComment = select
.all<HTMLDetailsElement>('.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<HTMLButtonElement>('.js-hide-inline-comment-form')
?.click();
// Move caret to end of field
requestAnimationFrame(() => {
select<HTMLTextAreaElement>('.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,
init: onetime(init)
});
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