Mark file as "viewed" on GitHub PR UI when hovering and pressing 'Escape' key, or unmark with Shift+Escape
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// ==UserScript==
// @name GitHub PR review keyboard shortcut
// @version 0.7.0
// @description Mark file as "viewed" on GitHub PR UI when hovering and pressing 'Escape' key, or unmark with Shift+Escape
// @match https://github.com/*
// @author dvdvdmt, nbolton, elijahr
// @source https://github.com/elijahr/github-review-shortcut
// @namespace https://github.com/elijahr/github-review-shortcut
// @license MIT
// ==/UserScript==
(function() {
'use strict';
if (window.disposeMarkAsViewedByEscape) {
window.disposeMarkAsViewedByEscape();
}
window.disposeMarkAsViewedByEscape = start();
function start() {
window.addEventListener('keydown', handleKeyDown)
return () => window.removeEventListener('keydown', handleKeyDown);
}
function isElementInViewport(el) {
const rect = el.getBoundingClientRect();
return (
rect.top < (window.innerHeight || document.documentElement.clientHeight) &&
rect.bottom > 0 &&
rect.left < (window.innerWidth || document.documentElement.clientWidth) &&
rect.right > 0
);
}
function simulateKeyPress(key) {
const event = new KeyboardEvent('keydown', {
key: key,
code: key === 'j' ? 'KeyJ' : 'KeyK',
keyCode: key === 'j' ? 74 : 75,
which: key === 'j' ? 74 : 75,
bubbles: true,
cancelable: true
});
document.dispatchEvent(event);
console.debug(`Simulated '${key}' keypress`);
}
function toggleFileAsViewed() {
let fileElement = document.querySelector('[class^="Diff-module__diffTargetable--"]:hover');
let isSingleElement = false;
if (!fileElement) {
console.debug("No file element under cursor, checking for alternatives");
const allDiffElements = document.querySelectorAll('[class^="Diff-module__diffTargetable--"]');
if (allDiffElements.length === 1) {
console.debug("Found single diff element, using it");
fileElement = allDiffElements[0];
isSingleElement = true;
} else if (allDiffElements.length > 1) {
console.debug("Multiple diff elements found, finding first in viewport");
fileElement = Array.from(allDiffElements).find(el => isElementInViewport(el));
}
}
console.debug("Found", fileElement);
if (!fileElement){
console.warn("No file element found");
return;
}
console.debug("File element found, finding buttons");
const buttons = [...fileElement.querySelectorAll('button')];
if (buttons.length === 0) {
console.warn("No buttons found in file element");
return;
}
console.debug("Buttons found, finding checkbox");
const checkbox = buttons.find(btn => btn.textContent.trim() === 'Viewed');
if (!checkbox) {
console.warn("No checkbox found for file element");
return;
}
// Check if checkbox is currently checked
const isChecked = checkbox.getAttribute('aria-checked') === 'true';
// Click the checkbox to toggle state
if (!isChecked) {
console.debug("Clicking checkbox to mark as viewed");
checkbox.click();
// If single element and marking as viewed, simulate 'j' to go to next file
if (isSingleElement) {
setTimeout(() => simulateKeyPress('j'), 100);
}
} else if (isChecked) {
console.debug("Clicking checkbox to unmark as viewed");
checkbox.click();
// If single element and unmarking as viewed, simulate 'k' to go to previous file
if (isSingleElement) {
setTimeout(() => simulateKeyPress('k'), 100);
}
}
}
function handleKeyDown(event) {
if (event.key !== 'Escape') {
return;
}
toggleFileAsViewed();
}
})();