seperate js in files

app/assets/javascripts/room.js

@@ -0,0 +1,40 @@
+// Room specific js for copy button and email link.
+
+$(document).on('turbolinks:load', function(){
+  var controller = $("body").data('controller');
+  var action = $("body").data('action');
+
+  // Only run on room pages.
+  if (controller == "rooms" && action == "show"){
+    var invite_url;
+    var copy = $('#copy');
+
+    // Handle copy button.
+    copy.on('click', function(){
+      var inviteURL = $('#invite-url');
+      inviteURL.select();
+
+      var success = document.execCommand("copy");
+      if (success) {
+        inviteURL.blur();
+        copy.addClass('btn-success');
+        copy.html("<i class='fas fa-check'></i> Copy")
+        setTimeout(function(){
+          copy.removeClass('btn-success');
+          copy.html("<i class='fas fa-copy'></i> Copy")
+        }, 2000)
+      }
+    });
+
+    // Handle recording emails.
+    $('.email-link').each(function(){
+      $(this).click(function(){
+        var subject = $(".username").text() + " has invited you to view a recording.";
+        var body = "To view the recording, follow the link below:\n\n" + $(this).attr("data-pres-link");
+        var footer = "\n\nThis e-mail is auto-generated by BigBlueButton.\nBigBlueButton is an open source web conferencing system. For more information on BigBlueButton, see https://bigbluebutton.org/."
+        var win = window.open("mailto:?subject=" + encodeURIComponent(subject) + "&body=" + encodeURIComponent(body) + encodeURIComponent(footer), '_blank');
+        win.focus();
+      });
+    });
+  }
+});