Sticky comments, PR tab keyboard shortcuts, and nicer scrollbars (#11)

- Make comments that start with "note" always appear on load, and highlight them with a border
- Add keyboard shortcuts to the PR tabs (in Chrome, it'd be Alt+1, Alt+2, etc)
- Make all scrollbars match the AzDO color theme
- Updated README

Author: alejandro5042

README.md

@@ -66,6 +66,14 @@ After (scrollbar is always visible):
 
 ![Scrollbars always visible.](static/after-pr-diff-scroll-improvements.png)
 
+You can now use keyboard shortcuts to quickly switch between PR tabs (e.g. Overview, Files, etc). In Chrome, it'd be `Alt+1`, `Alt+2`, etc. In FireFox, it is `Alt+Shift+Num`. [See this table for details on your browser.](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/accesskey)
+
+![PR tab keyboard shortcuts in Chrome.](static/pr-tab-accesskeys.png)
+
+Finally, PR comments that start with `note:` (case insensitive) will appear expanded on page load, even if they are closed. They are also highlighted with a light border:
+
+![Sticky comments are highlighted.](static/sticky-comment-highlighting.png)
+
 ### Better owners review
 
 > These features are currently specific to National Instruments.
@@ -86,6 +94,10 @@ Hopefully all this makes it very easy to scan for the stuff you care about.
 
 Note: If there is no owner info, or if you are not listed, nothing is highlighted and the button does not appear. It also only works with newer PRs (created or updated since approx. July 2019).
 
+### Overall
+
+Scrollbars site-wide now match the current Azure DevOps color theme.
+
 ## Documentation
 
 - [Support and troubleshooting](SUPPORT.md)

src/azdo-pr-dashboard.user.js

@@ -1,7 +1,7 @@
 // ==UserScript==
 
 // @name         AzDO Pull Request Improvements
-// @version      2.22.1
+// @version      2.23.0
 // @author       Alejandro Barreto (National Instruments)
 // @description  Adds sorting and categorization to the PR dashboard. Also adds minor improvements to the PR diff experience, such as a base update selector and per-file checkboxes.
 // @license      MIT
@@ -51,9 +51,56 @@
       addCheckboxesToFiles();
       addBaseUpdateSelector();
       makePullRequestDiffEasierToScroll();
+      applyStickyPullRequestComments();
+      addAccessKeysToPullRequestTabs();
     } else if (/\/(_pulls|pullrequests)/i.test(window.location.pathname)) {
       sortPullRequestDashboard();
     }
+
+    applyNicerScrollbars();
+  }
+
+  function applyStickyPullRequestComments() {
+    // Comments that start with this string become sticky. Only the first comment of the thread counts.
+    const lowerCasePrefix = 'note:';
+
+    addStyleOnce('sticky-comments', /* css */ `
+        .vc-discussion-thread-box .vc-discussion-thread-comment:first-of-type .vc-discussion-thread-renderparent[content^="${lowerCasePrefix}" i] {
+          border: 2px solid var(--palette-black-alpha-20);
+          aborder: 2px solid rgb(var(--palette-primary-tint-30));
+          border-radius: 5px;
+          margin: 7px 0px;
+          padding: 10px 15px;
+        }`);
+
+    // Expand threads that have the sticky prefix.
+    $('.discussion-thread-host button.ms-Button.expand-button').once('opened-once').each(function () {
+      // jQuery doesn't support case-insensitive string compares, so we need to drop into JS to find the prefix in the button's label.
+      if (this.getAttribute('aria-label').toLowerCase().includes(`: "${lowerCasePrefix}`)) {
+        this.click();
+      }
+    });
+  }
+
+  function addAccessKeysToPullRequestTabs() {
+    // Give all the tabs an access key equal to their numeric position on screen.
+    $('ul.vc-pullrequest-tabs a').once('add-accesskeys').each(function () {
+      $(this).attr('accesskey', $(this).attr('aria-posinset'));
+    });
+  }
+
+  function applyNicerScrollbars() {
+    addStyleOnce('nicer-scrollbars', /* css */ `
+      ::-webkit-scrollbar {
+        width: 15px;
+        height: 15px;
+      }
+      ::-webkit-scrollbar-track, ::-webkit-scrollbar-corner {
+        background: rgb(var(--palette-neutral-4));
+      }
+      ::-webkit-scrollbar-thumb {
+        background: rgb(var(--palette-neutral-20));
+      }`);
   }
 
   function makePullRequestDiffEasierToScroll() {