Add reddit blocker

Author: xarantolus

block/reddit.user.js

@@ -0,0 +1,102 @@
+// ==UserScript==
+// @name         Ad Block: Mobile Reddit
+// @namespace    xarantolus
+// @version      0.0.1
+// @description  Removes sponsored posts and ads on Reddit
+// @author       xarantolus
+// @match        *://reddit.com/*
+// @match        *://*.reddit.com/*
+// @grant        none
+// @run-at       document-end
+// @homepage     https://userscripts.010.one
+// @url_source   https://github.com/xarantolus/bromite-userscripts/releases/latest/download/reddit.user.js
+// ==/UserScript==
+
+var log = function (...data) {
+  console.log("[Ad Block: Reddit]:", ...data);
+};
+
+var scriptFun = function () {
+  // Source: http://ryanmorr.com/using-mutation-observers-to-watch-for-element-availability/
+  (function (win) {
+    "use strict";
+
+    var listeners = [],
+      doc = win.document,
+      MutationObserver = win.MutationObserver || win.WebKitMutationObserver,
+      observer;
+
+    function ready(selector, fn) {
+      // Store the selector and callback to be monitored
+      listeners.push({
+        selector: selector,
+        fn: fn,
+      });
+      if (!observer) {
+        // Watch for changes in the document
+        observer = new MutationObserver(check);
+        observer.observe(doc.documentElement, {
+          childList: true,
+          subtree: true,
+        });
+      }
+      // Check if the element is currently in the DOM
+      check();
+    }
+
+    function check() {
+      // Check the DOM for elements matching a stored selector
+      for (
+        var i = 0, len = listeners.length, listener, elements;
+        i < len;
+        i++
+      ) {
+        listener = listeners[i];
+        // Query for elements matching the specified selector
+        elements = doc.querySelectorAll(listener.selector);
+        for (var j = 0, jLen = elements.length, element; j < jLen; j++) {
+          element = elements[j];
+          // Make sure the callback isn't invoked with the
+          // same element more than once
+          if (!element.ready) {
+            element.ready = true;
+            // Invoke the callback with the element
+            listener.fn.call(element, element);
+          }
+        }
+      }
+    }
+
+    // Expose `ready`
+    win.ready = ready;
+  })(this);
+
+  function removeWithReason(adType) {
+    return function (element) {
+      element.remove();
+      log("Removed " + adType);
+    };
+  }
+
+  // removeIfAd returns a function that gets an HTML element and removes it if it's an ad
+  function removeAd(adType) {
+    var remove = removeWithReason(adType);
+    return function (element) {
+		remove(element);
+    };
+  }
+
+  ready("shreddit-ad-post", removeAd("feed ad"));
+  ready("shreddit-comments-page-ad", removeAd("comments page ad"));
+};
+
+scriptFun()
+
+
+// if (document.readyState == "complete") {
+//   scriptFun();
+//   log("Ran on completed document");
+// } else {
+//   window.addEventListener("load", scriptFun);
+//   log("Registered as 'load' event listener");
+// }