Speed things up

.gitignore

@@ -1,4 +1,4 @@
 node_modules
 .web-extension-id
-sign.sh
 web-ext-artifacts/
+sign-firefox-extension.sh

README.md

@@ -1,30 +1,49 @@
 Replaces YouTube comments with random herp derps. Click on the comment text to reveal the original.
-This is modification of github.com/twstokes/herpderp
+This is a fork of [twstokes/herpderp](https://github.com/twstokes/herpderp) with some modifications.
 
 Note: Ignores iframe embedded videos, including the chat replay iframe on YouTube livestream vids.
 
+**Known bugs**
+1. As of 2021-03-24, sometimes when showing the original comment the first few lines are missing.
+   This tends to happen when you've transitioned to the page from another video. Refreshing the page
+   tends to fix the problem. I'll eventually try to fix this.
+
 ## Install
 
 **Firefox**
 * I have a signed xpi that you can immediately install. Open `build/` and drag the xpi into Firefox.
+  It may take a few seconds for the browser to display the extension installation dialog box.
+* You can also find the signed Firefox files in the project's [Releases page](https://git.michael.is/michael/youtube-herp-derp-browser-extension/releases).
 
 **Chrome**
-* Unzip the Chrome addon file in the `build` folder.
-* Go to Chrome extensions page. Toggle the developer mode (top-right of page). Click `Load
-  unpacked`.
-* Select the unzipped folder.
+* Go to Chrome extensions page.
+* Toggle the developer mode (top-right of page).
+* Click `Load unpacked`.
+* Select this project's root folder.
 
 ## Development
 
 ### Local Testing
 
-In Firefox, open about:debugging and click `Load Temporary Add-on...` then select `manifest.json`.
-file.
+* Firefox: open about:debugging and click `Load Temporary Add-on...` then select `manifest.json` file.
+* Chrome: follow the install steps from above.
 
-### Signing and Building
+## Signing and Building
 
+### Firefox
+
+* Can either sign and upload from the CLI or manually upload. The former is easy but it triggers a human review?
+
+* CLI Upload
     * Install web-ext with `$ npm install --global web-ext`
     * Generate an unlisted xpi with:
-  'web-ext sign --channel unlisted --api-key <your add-on signing key> --api-secret <your add-on signing secret>`.
-  Those keys can be obtained from https://addons.mozilla.org/en-US/developers/addon/api/key/
-* Drag downloaded xpi into Firefox.
+      `web-ext sign --api-key <your JWT issuer> --api-secret <your JWT secret>`
+        * You can obtain these keys from https://addons.mozilla.org/en-US/developers/addon/api/key/
+    * The signed xpi will be in `web-ext-artifacts/`. Drag this into Firefox to install it.
+    * Alternatively use the private sign-firefox-extension.sh script (not included in the repo) which places the xpi in `build/`.
+
+* Manual Upload
+    * Go to https://addons.mozilla.org/en-US/developers, open the extension and then click on `Upload new version`.
+    * Pack the manifest, js script and icons directory into a zip and upload this file.
+    * To download the signed xpi, click on `view all` (versions), then the name of the new version, then the xpi filename.
+

index.js

@@ -1,88 +1,97 @@
-// [1, max]
-const RandomInt = max => Math.floor(Math.random() * max);
+const RandomInt = max => Math.floor(Math.random() * max); // [1, max]
 
 const DerpString = (length = 20) => {
     const RandomDerp = () => {
         let n = RandomInt(4);
         let result = "";
-    if (n == 0)
+        if (n == 0) {
             result = "blah";
-    else if (n == 1)
+        }
+        else if (n == 1) {
             result = "durr";
-    else if (n == 2)
+        }
+        else if (n == 2) {
             result = "herp";
-    else if (n == 3)
+        }
+        else if (n == 3) {
             result = "derp";
+        }
         return result;
     };
     return Array.from({ length: (RandomInt(length) + 1) }, () => RandomDerp()).join(" ");
 };
 
-// Herp derps an element.
-const DerpElement = element => {
-  const c = element;
-  c.derpOriginal = c.textContent; // Preserve the original contents.
+// Herp derps an comment.
+const DerpComment = (commentNode, textNode) => {
+    commentNode.isDerped = true;
+    const c = textNode;
+    c.derpOrig = c.textContent; // Preserve the original contents.
     c.onclick = () => {
-    c.clicked = !c.clicked;
-    c.textContent = c.clicked ? c.derpOriginal : c.derp_str;
+        c.derpClicked = !c.derpClicked;
+        c.textContent = c.derpClicked ? c.derpOrig : c.derpStr;
     };
-  c.classList.add("derped");
-  c.derp_str = DerpString();
-  c.textContent = c.derp_str;
-  c.clicked = false;
+    c.classList.add("isDerped");
+    c.derpStr = DerpString();
+    c.derpClicked = false;
+    c.textContent = c.derpStr; // Set the derp text.
 };
 
 const ValidatePreviouslyDerpedComments = comment => {
     const c = comment;
-  if (c.clicked && c.textContent === c.derpOriginal) return;
-  if (!c.clicked && c.textContent === c.derp_str) return;
+    if (c.derpClicked && c.textContent === c.derpOrig) return;
+    if (!c.derpClicked && c.textContent === c.derpStr) return;
 
     // Fix the comment. The only case of malformed comments encountered so far
     // are these two cases:
-  if (c.textContent.indexOf(c.derp_str) !== -1) {
+    if (c.textContent.indexOf(c.derpStr) !== -1) {
         // In the case of the new comment being appended after the derp string,
-    // just grab it and put it in the derpOriginal variable
-    const idx = c.derp_str.length;
-    c.derpOriginal = c.textContent.substring(idx);
+        // just grab it and put it in the derpOrig variable
+        const idx = c.derpStr.length;
+        c.derpOrig = c.textContent.substring(idx);
         c.textContent = c.textContent.substring(0, idx);
-    c.clicked = false;
+        c.derpClicked = false;
         return;
     }
 
-  if (c.textContent.indexOf(c.derpOriginal) !== -1) {
-    // Same issue, but the comment was appended after derpOriginal.
-    const idx = c.derpOriginal.length;
-    c.derpOriginal = c.textContent.substring(idx);
-    c.textContent = c.derp_str;
-    c.clicked = false;
+    if (c.textContent.indexOf(c.derpOrig) !== -1) {
+        // Same issue, but the comment was appended after derpOrig.
+        const idx = c.derpOrig.length;
+        c.derpOrig = c.textContent.substring(idx);
+        c.textContent = c.derpStr;
+        c.derpClicked = false;
     }
 };
 
 const Init = commentsSection => {
-  const commentContentSelector = ["#content-text"]; // Comment text content.
+    const commentTextId       = "#content-text";
+    const derpedSelector      = `${commentTextId}.isDerped`;
+    const commentRendererName = "YTD-COMMENT-RENDERER";
 
-  const notDerpedSelector = commentContentSelector
-    .map(sel => `${sel}:not(.derped)`)
-    .join(", ");
-
-  const derpedSelector = commentContentSelector.map(sel => `${sel}.derped`).join(", ");
-
-  // Only watch for child list changes, as we're watching the comments
-  // container.
-  const mutationConfig = { attributes: false, childList: true, subtree: true };
-
-  // Detect when comments are added to the DOM.
-  const observer = new MutationObserver(() => {
-    // Check that everything's fine with the already derped comments.
-    // This is necessary because youtube does a lot of wizardry with comments
-    // in-between videos.
-    document.querySelectorAll(derpedSelector).forEach(ValidatePreviouslyDerpedComments);
-
-    // Derp all un-derped comments.
-    document.querySelectorAll(notDerpedSelector).forEach(DerpElement);
+    // Need to convert comments that were inserted before the mutation observer below runs.
+    commentsSection.querySelectorAll(commentRendererName).forEach(node => {
+        DerpComment(node, node.querySelector(commentTextId));
     });
 
-  observer.observe(commentsSection, mutationConfig);
+    // Detect when comments are added to the DOM.
+    const observer = new MutationObserver(mutations => {
+        // Check that everything's fine with the already derped comments.
+        // This is necessary because youtube does a lot of wizardry with comments in-between videos.
+        document.querySelectorAll(derpedSelector).forEach(ValidatePreviouslyDerpedComments);
+
+        mutations.forEach((change, index) => {
+            console.assert(change.type === "childList");
+            change.addedNodes.forEach(node => {
+                if (node.nodeName === commentRendererName) {
+                    if (!node.isDerped) {
+                        DerpComment(node, node.querySelector(commentTextId));
+                    }
+                }
+            });
+        });
+    });
+
+    // Only watch for child list changes, as we're watching the comments container.
+    observer.observe(commentsSection, { attributes: false, childList: true, subtree: true });
 };
 
 // Check every so often if comments are loaded or not. Once they are, the
@@ -90,18 +99,20 @@ const Init = commentsSection => {
 // to be done since comments are added in the DOM through js at an undetermined
 // point through Youtube's execution.
 const CheckIfCommentsLoaded = () => {
-  const commentSectionSelector = "html body ytd-app ytd-comments ytd-item-section-renderer #contents";
-
     setTimeout(() => {
-    // This selector is awful, but Youtube re-uses a lot of the DOM (the
-    // selector for the comments is re-used across a bunch of pages) so we need
-    // the exact path to the comments to match
-    const commentsSection = document.querySelector(commentSectionSelector);
-    if (commentsSection !== null)
+        const commentsSection = document.querySelector("ytd-comments #contents");
+
+        if (commentsSection !== null) {
             Init(commentsSection);
-    else
+        }
+        else {
             CheckIfCommentsLoaded();
-  }, 500);
+        }
+        // If the timeout is <= 1000 then Chrome sometimes fails to run the mutation observer.
+        // It'll create it and active it, but it doesn't run the callback on DOM changes...
+        // I'm seeing this in Chrome 110.
+    }, 2000);
 };
 
 CheckIfCommentsLoaded();
+

manifest.json

@@ -1,17 +1,22 @@
 {
-  "manifest_version": 2,
+  "manifest_version": 3,
   "name": "YouTube Herp Derp",
   "description": "Replaces YouTube comments with herp derps. Forked from github.com/twstokes/herpderp",
-  "homepage_url": "https://michael.is",
-  "version": "1.0.3",
+  "homepage_url": "https://git.michael.is/michael/youtube-herp-derp-browser-extension",
+  "version": "1.0.4.2",
   "icons": {
     "48": "icons/herp48.png",
     "128": "icons/herp128.png"
   },
+  "browser_specific_settings": {
+      "gecko": {
+          "id": "{8460883e-a350-4e55-8c07-eed5eefdc2b5}"
+      }
+  },
   "content_scripts": [
     {
       "run_at": "document_idle",
-      "all_frames": false, // Ignore iframes.
+      "all_frames": false,
       "matches": [
         "https://apis.google.com/*",
         "https://plus.googleapis.com/*",