source/features/pr-jump-to-first-non-viewed-file.tsx


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import select from 'select-dom';
import delegate from 'delegate-it';
import * as pageDetect from 'github-url-detection';

import features from '.';

function jumpToFirstNonViewed(): void {
	const firstNonViewedFile = select('.file:not([data-file-user-viewed])')!;
	if (firstNonViewedFile) {
		// Scroll to file without pushing to history
		location.replace('#' + firstNonViewedFile.id);
	} else {
		// The file hasn't loaded yet, so make GitHub load it by scrolling to the bottom
		window.scrollTo(window.scrollX, document.body.scrollHeight);
	}
}

function init(): void {
	delegate(document, '.diffbar-item progress-bar', 'click', jumpToFirstNonViewed);
	select('.diffbar-item progress-bar')!.style.cursor = 'pointer';
}

void features.add({
	id: __filebasename,
	description: 'Jumps to first non-viewed file in a pull request when clicking on the progress bar.',
	screenshot: 'https://user-images.githubusercontent.com/16872793/85226580-3bf3d500-b3a6-11ea-8494-3d9b6280d033.gif'
}, {
	include: [
		pageDetect.isPRFiles
	],
	exclude: [
		pageDetect.isPRFile404
	],
	init
});