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import './clean-sidebar.css';
import React from 'dom-chef';
import select from 'select-dom';
import onetime from 'onetime';
import * as pageDetect from 'github-url-detection';
import features from '.';
import onElementRemoval from '../helpers/on-element-removal';
import onReplacedElement from '../helpers/on-replaced-element';
const canEditSidebar = onetime((): boolean => select.exists('.sidebar-labels .octicon-gear'));
function getNodesAfter(node: Node): Range {
const range = new Range();
range.selectNodeContents(node.parentElement!);
range.setStartAfter(node);
return range;
}
/**
Smartly removes "No content" or the whole section, depending on `canEditSidebar`.
Expected DOM:
```pug
.discussion-sidebar-item
form (may be missing)
details or div.discussion-sidebar-heading
.css-truncate (may be missing)
"No issues"
```
@param containerSelector Element that contains `details` or `.discussion-sidebar-heading`
*/
function cleanSection(containerSelector: string): boolean {
const container = select(containerSelector);
if (!container) {
return false;
}
const header = select(':scope > details, :scope > .discussion-sidebar-heading', container)!;
// Magic. Do not touch.
// Section is empty if: no sibling element OR empty sibling element
if (header.nextElementSibling?.firstElementChild) {
return false;
}
const section = container.closest('.discussion-sidebar-item')!;
if (canEditSidebar()) {
getNodesAfter(header).deleteContents();
section.classList.add('rgh-clean-sidebar');
} else {
section.remove();
}
return true;
}
async function clean(): Promise<void> {
if (select.exists('.rgh-clean-sidebar')) {
return;
}
select('#partial-discussion-sidebar')!.classList.add('rgh-clean-sidebar');
// Assignees
const assignees = select('.js-issue-assignees')!;
if (assignees.children.length === 0) {
assignees.closest('.discussion-sidebar-item')!.remove();
} else {
const assignYourself = select('.js-issue-assign-self');
if (assignYourself) {
assignYourself.previousSibling!.remove(); // Drop "No one — "
select('[aria-label="Select assignees"] summary')!.append(
<span style={{fontWeight: 'normal'}}> – {assignYourself}</span>
);
assignees.closest('.discussion-sidebar-item')!.classList.add('rgh-clean-sidebar');
}
}
// Reviewers
if (pageDetect.isPR()) {
const possibleReviewers = select('[src$="/suggested-reviewers"]');
if (possibleReviewers) {
await onElementRemoval(possibleReviewers);
}
const content = select('[aria-label="Select reviewers"] > .css-truncate')!;
if (!content.firstElementChild) {
content.remove(); // Drop "No reviews"
}
}
// Labels
if (!cleanSection('.sidebar-labels') && !canEditSidebar()) {
// Hide header in any case except `canEditSidebar`
select('.sidebar-labels div.discussion-sidebar-heading')!.remove();
}
// Linked issues/PRs
select('[aria-label="Link issues"] p')!.remove(); // "Successfully merging a pull request may close this issue."
cleanSection('[aria-label="Link issues"]');
// Projects
cleanSection('[aria-label="Select projects"]');
// Milestones
cleanSection('[aria-label="Select milestones"]');
}
void features.add({
id: __filebasename,
description: 'Hides empty sections (or just their "empty" label) in the conversation sidebar.',
screenshot: 'https://user-images.githubusercontent.com/1402241/57199809-20691780-6fb6-11e9-9672-1ad3f9e1b827.png'
}, {
include: [
pageDetect.isIssue,
pageDetect.isPRConversation
],
additionalListeners: [
() => void onReplacedElement('#partial-discussion-sidebar', clean)
],
init: clean
});
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