Перешел на domnodeinserted

controls.css

@@ -0,0 +1,49 @@
+.mute_message .mutetooltip {
+    visibility: hidden;
+    width: 120px;
+    background-color: #555;
+    color: #fff;
+    text-align: center;
+    padding: 5px 0;
+    border-radius: 6px;
+    
+    /* Position the tooltip text */
+    position: absolute;
+    z-index: 1;
+    bottom: 125%;
+    left: 50%;
+    margin-left: -60px;
+    
+    /* Fade in tooltip */
+    opacity: 0;
+    transition: opacity 0.3s;
+}
+
+/* Tooltip arrow */
+.mute_message .mutetooltip::after {
+    content: "";
+    position: absolute;
+    top: 100%;
+    left: 50%;
+    margin-left: -5px;
+    border-width: 5px;
+    border-style: solid;
+    border-color: #555 transparent transparent transparent;
+}
+
+/* Show the tooltip text when you mouse over the tooltip container */
+.mute_message:hover .mutetooltip {
+    visibility: visible;
+    opacity: 1;
+}
+
+.mute_message {
+    width: 16px;
+    height: 16px;
+    position: relative; 
+    display: inline-block;
+    vertical-align: top; 
+    background: url('chrome-extension://__MSG_@@extension_id__/mute.png') no-repeat top left;
+    background-repeat: no-repeat;
+    padding: 6px;
+}

controls.js

@@ -1,11 +1,12 @@
 var showMembersBtn = document.getElementsByClassName("_im_chat_members im-page--members")[0];
 var controlsArea;
 
+/*
 function isInt(value) {
     return !isNaN(value) && (function(x) { return (x | 0) === x; })(parseFloat(value))
 }
 
-/*
+
 showMembersBtn.addEventListener('click', function() {
     var checkExist = setInterval(function() {
         controlsArea = document.getElementsByClassName("ListItem__aside");
@@ -29,7 +30,11 @@ showMembersBtn.addEventListener('click', function() {
 */
 
 function muteBtnHTML(id) {
-    return '<span style="vertical-align:middle;" class="mute_message" id="mute' + id + '">🔇</span>'
+    return `
+    <span class="mute_message" id="mute` + id + `">
+        🔇
+        <span class="mutetooltip">Заглушить</span>
+    </span>`
 }
 
 function addControls() {
@@ -55,6 +60,7 @@ function addControls() {
             var clicked_id = event.target.id.substr(event.target.id.length - 9);
 
             chrome.storage.sync.set({idToHide: clicked_id}, function() {
+                hidePeer(clicked_id);
                 console.log('idToHide: ' + clicked_id);
             });
         });

hide_element.js

@@ -18,4 +18,10 @@ function hidePeer(peer) {
     });
 }
 
-var interval = window.setInterval(function(){ hidePeer(idToHide) }, 500);
+//var interval = window.setInterval(function(){ hidePeer(idToHide) }, 500);
+
+var chatBody = document.getElementsByClassName("_im_peer_history im-page-chat-contain")[0];
+
+chatBody.addEventListener('DOMNodeInserted', function() {
+    hidePeer(idToHide);
+});

manifest.json

@@ -1,11 +1,12 @@
 {
-  "name": "Hide Cringe",
+  "name": "VK Mute",
   "icons": {
-    "128": "icon128.png",
+    "140": "icons/icon140.png",
-    "48": "icon48.png"
+    "128": "icons/icon128.png",
+    "48": "icons/icon48.png"
   },
   "version": "1.0",
-  "description": "Hides cringe",
+  "description": "Позволяет заглушить нежелаемых собеседников",
   "permissions": ["activeTab", "declarativeContent", "storage"],
   "background": {
     "scripts": [
@@ -24,7 +25,8 @@
     },
     {
       "matches": ["https://*.vk.com/*"],
-      "js": ["controls.js"]
+      "js": ["controls.js"],
+      "css": ["controls.css"]
     }
   ]
 }