Sort initializers into separate init functions for DOM and WS events, stop passing session.loggedIn() around in refresh and setMode functions and send first message through session

www/login.js

@@ -19,70 +19,88 @@ function Login(modules) {
     }
   }];
 
-  root.addEventListener('submit', function(e) {
+  init();
-    e.preventDefault();
-    if(modules.session.loggedIn()) {
-      modules.messaging.send({tag: "Invitation", to: them});
-    } else {
-      modules.messaging.send({tag: "LogIn", name: root.you.value});
-    }
-  });
-
-  root.leave.addEventListener('click', function(e) {
-    e.preventDefault();
-    lib.send({tag: "LogOut"})
-  });
-
-  root.you.addEventListener("input", function() {refreshPlayers(false);});
-  root.them.addEventListener("input", function() {refreshPlayers(true);});
-
-  modules.messaging.addEventListener(["Welcome"], function() {
-    refreshPlayers(modules.session.loggedIn());
-  });
-
-  modules.messaging.addEventListener(["Update"], function(o) {
-    refreshPlayers(modules.session.loggedIn());
-  });
-
-  modules.messaging.addEventListener(["Relay", "LogIn"], function() {
-    playersChanged();
-  });
-
-  modules.messaging.addEventListener(["Relay", "LogOut"], function() {
-    playersChanged();
-  });
-
-  modules.messaging.addEventListener(["Relay", "Invitation"], function(o) {
-    var name = modules.room.name(o.from);
-    // invitations should come only from known players, in doubt say «no»
-    if(name) {
-      modules.statusHandler.set("🎴");
-      modules.screen.dialog({
-        text: modules.i18n.get('invited')(name),
-        answers: invitationAnswers
-      });
-    } else {
-      modules.messaging.send({tag: "Answer", accept: false});
-    }
-  });
-
-  modules.messaging.addEventListener(["Relay", "Answer"], function(o) {
-    if(o.message.accept) {
-      modules.screen.select("game");
-    }
-  });
 
   return {};
 
-  function playersChanged() {
+  function init() {
-    var loggedIn = modules.session.loggedIn();
+    initDOMEvents();
-    setMode(loggedIn);
+    initMessageHandlers();
-    refreshPlayers(loggedIn);
+    var name = modules.save.get('player.name');
+    if(name != undefined && name.length > 0) {
+      root.you.value = name;
+      formDisable('join', false);
+    }
   }
 
-  function refreshPlayers(loggedIn) {
+  function initDOMEvents() {
+    root.addEventListener('submit', function(e) {
+      e.preventDefault();
+      if(modules.session.loggedIn()) {
+        modules.messaging.send({tag: "Invitation", to: them});
+      } else {
+        modules.session.start(root.you.value);
+      }
+    });
+
+    root.leave.addEventListener('click', function(e) {
+      e.preventDefault();
+      lib.send({tag: "LogOut"})
+    });
+
+    root.you.addEventListener("input", function() {refreshPlayers();});
+    root.them.addEventListener("input", function() {refreshPlayers();});
+  }
+
+  function initMessageHandlers() {
+    modules.messaging.addEventListener(["Welcome"], function() {
+      refreshPlayers();
+    });
+
+    modules.messaging.addEventListener(["Update"], function(o) {
+      refreshPlayers();
+    });
+
+    modules.messaging.addEventListener(["Relay", "LogIn"], function() {
+      playersChanged();
+    });
+
+    modules.messaging.addEventListener(["Relay", "LogOut"], function() {
+      playersChanged();
+    });
+
+    modules.messaging.addEventListener(["Relay", "Invitation"], function(o) {
+      var name = modules.room.name(o.from);
+      // invitations should come only from known players, in doubt say «no»
+      if(name) {
+        modules.statusHandler.set("🎴");
+        modules.screen.dialog({
+          text: modules.i18n.get('invited')(name),
+          answers: invitationAnswers
+        });
+      } else {
+        modules.messaging.send({tag: "Answer", accept: false});
+      }
+    });
+
+    modules.messaging.addEventListener(["Relay", "Answer"], function(o) {
+      if(o.message.accept) {
+        modules.screen.select("game");
+      }
+    });
+
+    modules.messaging.addEventListener('open', refreshPlayers);
+    modules.messaging.addEventListener('close', refreshPlayers);
+  }
+
+  function playersChanged() {
+    setMode();
+    refreshPlayers();
+  }
+
+  function refreshPlayers() {
     modules.dom.clear(players);
-    if(loggedIn) {
+    if(modules.session.loggedIn()) {
       refreshThem();
     } else {
       refreshYou();
@@ -122,7 +140,7 @@ function Login(modules) {
 
   function formDisable(name, disabled) {
     [submit, root[name]].forEach(function(button) {
-      button.disabled = disabled;
+      button.disabled = disabled || !modules.messaging.isOn();
     });
   }
 
@@ -132,7 +150,8 @@ function Login(modules) {
     };
   }
 
-  function setMode(loggedIn) {
+  function setMode() {
+    var loggedIn = modules.session.loggedIn()
     root.join.disabled = loggedIn;
     root.invite.disabled = !loggedIn;
     if(loggedIn) {