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import React from 'dom-chef';
import select from 'select-dom';
import * as icons from '../libs/icons';
import features from '../libs/features';
function createDiffStyleToggle(): DocumentFragment {
const params = new URLSearchParams(location.search);
const isUnified = select.exists([
'[value="unified"][checked]', // Form in PR
'.table-of-contents .selected[href$=unified]' // Link in single commit
].join());
const makeLink = (type: string, icon: Element, selected: boolean): HTMLElement => {
params.set('diff', type);
return <a
className={`btn btn-sm BtnGroup-item tooltipped tooltipped-s ${selected ? 'selected' : ''}`}
aria-label={`Show ${type} diffs`}
href={`?${params}`}>
{icon}
</a>;
};
return <>
{makeLink('unified', icons.diff(), isUnified)}
{makeLink('split', icons.book(), !isUnified)}
</>;
}
function createWhitespaceButton(): HTMLElement {
const searchParams = new URLSearchParams(location.search);
const isHidingWhitespace = searchParams.get('w') === '1';
if (isHidingWhitespace) {
searchParams.delete('w');
} else {
searchParams.set('w', '1');
}
return (
<a href={`?${searchParams}`}
data-hotkey="d w"
className={`btn btn-sm btn-outline tooltipped tooltipped-s ${isHidingWhitespace ? 'bg-gray-light text-gray-light' : ''}`}
aria-label={`${isHidingWhitespace ? 'Show' : 'Hide'} whitespace in diffs`}>
{isHidingWhitespace ? icons.check() : false} No Whitespace
</a>
);
}
function wrap(...elements: Node[]): DocumentFragment {
if (features.isSingleCommit()) {
return <div className="float-right">
{...elements.map(element => <div className="ml-3 BtnGroup">{element}</div>)}
</div>;
}
return <>{elements.map(element => <div className="diffbar-item">{element}</div>)}</>;
}
function init(): false | void {
const container = select([
'#toc', // In single commit view
'.pr-review-tools' // In review view
].join(','));
if (!container) {
return false;
}
container.prepend(
wrap(
createDiffStyleToggle(),
createWhitespaceButton()
)
);
// Trim title
const prTitle = select('.pr-toolbar .js-issue-title');
if (prTitle && select.exists('.pr-toolbar progress-bar')) { // Only review view has progress-bar
prTitle.style.maxWidth = '24em';
prTitle.title = prTitle.textContent!;
}
// Remove previous options UI
const singleCommitUI = select('[data-ga-load="Diff, view, Viewed Split Diff"]');
if (singleCommitUI) {
singleCommitUI.remove();
return;
}
const prUI = select('.js-diff-settings');
if (prUI) {
prUI.closest('details')!.remove();
// Make space for the new button by removing "Changes from" #655
select('[data-hotkey="c"]')!.firstChild!.remove();
}
}
features.add({
id: __featureName__,
description: 'Adds one-click buttons to change diff style and to ignore the whitespace and a keyboard shortcut to ignore the whitespace: `d` `w`.',
screenshot: 'https://user-images.githubusercontent.com/1402241/54178764-d1c96080-44d1-11e9-889c-734ffd2a602d.png',
include: [
features.isPRFiles,
features.isCommit
],
load: features.onAjaxedPages,
shortcuts: {
'd w': 'Show/hide whitespaces in diffs'
},
init
});
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