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import './sticky-conversation-sidebar.css';
import select from 'select-dom';
import debounce from 'debounce-fn';
import * as pageDetect from 'github-url-detection';
import features from '.';
import onReplacedElement from '../helpers/on-replaced-element';
const sideBarSelector = '#partial-discussion-sidebar, .discussion-sidebar';
function updateStickiness(): void {
const sidebar = select(sideBarSelector)!;
const sidebarHeight = sidebar.offsetHeight + 60; // 60 matches sticky header's height
sidebar.classList.toggle('rgh-sticky-sidebar', sidebarHeight < window.innerHeight);
}
const onResize = debounce(updateStickiness, {wait: 100});
function deinit(): void {
window.removeEventListener('resize', onResize);
}
void features.add({
id: __filebasename,
description: 'Makes the conversation sidebar sticky.',
screenshot: 'https://user-images.githubusercontent.com/10238474/62276723-5a2eaa80-b44d-11e9-810b-ff598d1c5c6a.gif'
}, {
include: [
pageDetect.isIssue,
pageDetect.isPRConversation
],
additionalListeners: [
() => window.addEventListener('resize', onResize),
() => void onReplacedElement(sideBarSelector, updateStickiness)
],
init: updateStickiness,
deinit
});
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