remove refresh on specific pages and change join form

app/assets/stylesheets/landing.scss

@@ -2,6 +2,10 @@
 // They will automatically be included in application.css.
 // You can use Sass (SCSS) here: http://sass-lang.com/
 
+.join-form {
+  width: 100%;
+}
+
 .rooms {
   .table-wrapper {
     padding: 40px 50px 10px 50px;

app/controllers/landing_controller.rb

@@ -15,7 +15,7 @@ class LandingController < ApplicationController
   end
 
   def admin?
-    @user == current_user
+    @user && @user == current_user
   end
   helper_method :admin?
 

app/views/landing/meetings.html.erb

@@ -7,12 +7,14 @@
   </small>
 <% end %>
 
-<% content_for :footer do %>
-  <div class="panel-footer">
-    <div class="text-center">
-      <a href="#" class="generate-link">Click refresh</a> to generate a new meeting URL
+<% if !@meeting_id %>
+  <% content_for :footer do %>
+    <div class="panel-footer">
+      <div class="text-center">
+        <a href="#" class="generate-link">Click refresh</a> to generate a new meeting URL
+      </div>
     </div>
-  </div>
+  <% end %>
 <% end %>
 
 <div class="page-wrapper meetings">

app/views/shared/_join_form.html.erb

@@ -1,9 +1,23 @@
-<div class="input-group input-spacing">
-  <% @current_user = user %>
-  <%= text_field :current_user, :name, class: 'form-control meeting-user-name', placeholder: 'Enter your name' %>
-  <span class="input-group-btn">
-    <button type="button" class="btn btn-primary meeting-join">
+<div class="join-form input-group input-spacing">
+  <% if current_user %>
+    <% @current_user = user %>
+    <%= text_field :current_user, :name, class: 'form-control meeting-user-name', type: 'hidden' %>
+  <% else %>
+    <%= text_field :nil, :nil, class: 'form-control meeting-user-name', placeholder: 'Enter your name' %>
+  <% end %>
+  <% if admin? %>
+    <button type="button" class="btn btn-primary center-block meeting-join">
+      Start
+    </button>
+  <% elsif current_user %>
+    <button type="button" class="btn btn-primary center-block meeting-join">
       Join
     </button>
-  </span>
+  <% else %>
+    <span class="input-group-btn">
+      <button type="button" class="btn btn-primary meeting-join">
+        Join
+      </button>
+    </span>
+  <% end %>
 </div>