[mirotalksfu] - allow name storage per room

public/js/Room.js

@@ -393,6 +393,11 @@ function whoAreYou() {
         return;
     }
 
+    let default_name = window.localStorage.peer_name ? window.localStorage.peer_name : '';
+    if (getCookie(room_id + "_name")) {
+        default_name = getCookie(room_id + "_name");
+    }
+
     Swal.fire({
         allowOutsideClick: false,
         allowEscapeKey: false,
@@ -401,7 +406,7 @@ function whoAreYou() {
         imageUrl: image.username,
         input: 'text',
         inputPlaceholder: 'Enter your name',
-        inputValue: window.localStorage.peer_name ? window.localStorage.peer_name : '',
+        inputValue: default_name,
         html: `<br />
         <div style="overflow: hidden;">
             <button id="initAudioButton" class="fas fa-microphone" onclick="handleAudio(event)"></button>
@@ -417,12 +422,15 @@ function whoAreYou() {
         },
         inputValidator: (name) => {
             if (!name) return 'Please enter your name';
+            if (!getCookie(room_id + "_name")) {
+                window.localStorage.peer_name = name;
+            }
+            setCookie(room_id + "_name", name, 30);
             peer_name = name;
         },
     }).then(() => {
         getPeerInfo();
         joinRoom(peer_name, room_id);
-        window.localStorage.peer_name = peer_name;
     });
 
     if (!DetectRTC.isMobileDevice) {
@@ -1256,6 +1264,24 @@ function openURL(url, blank = false) {
     blank ? window.open(url, '_blank') : (window.location.href = url);
 }
 
+function setCookie(name, value, expDays) {
+        let date = new Date();
+        date.setTime(date.getTime() + (expDays * 24 * 60 * 60 * 1000));
+        const expires = "expires=" + date.toUTCString();
+        document.cookie = name + "=" + value + "; " + expires + "; path=/";
+}
+
+function getCookie(cName) {
+      const name = cName + "=";
+      const cDecoded = decodeURIComponent(document.cookie);
+      const cArr = cDecoded .split('; ');
+      let res;
+      cArr.forEach(val => {
+          if (val.indexOf(name) === 0) res = val.substring(name.length);
+      })
+      return res;
+}
+
 // ####################################################
 // HANDLE WHITEBOARD
 // ####################################################