msglist: add initialization state

Make the msglist aware of whether we are still initializing or not.
We never stopped spinning the msglist if we didn't get any Directories back
from types.ListDirectories.
With this change, we can set the init state from the account and display
the spinner only if we don't know whether we have directories or not and else
the "no messages" string from the config.

widgets/account.go

@@ -147,6 +147,8 @@ func (acct *AccountView) connected(msg types.WorkerMessage) {
 			if dir != "" {
 				acct.dirlist.Select(dir)
 			}
+
+			acct.msglist.SetInitDone()
 			acct.logger.Println("Connected.")
 			acct.host.SetStatus("Connected.")
 		})

widgets/msglist.go

@@ -16,20 +16,22 @@ import (
 
 type MessageList struct {
 	ui.Invalidatable
-	conf    *config.AercConfig
-	logger  *log.Logger
-	height  int
-	scroll  int
-	nmsgs   int
-	spinner *Spinner
-	store   *lib.MessageStore
+	conf          *config.AercConfig
+	logger        *log.Logger
+	height        int
+	scroll        int
+	nmsgs         int
+	spinner       *Spinner
+	store         *lib.MessageStore
+	isInitalizing bool
 }
 
 func NewMessageList(conf *config.AercConfig, logger *log.Logger) *MessageList {
 	ml := &MessageList{
-		conf:    conf,
-		logger:  logger,
-		spinner: NewSpinner(),
+		conf:          conf,
+		logger:        logger,
+		spinner:       NewSpinner(),
+		isInitalizing: true,
 	}
 	ml.spinner.OnInvalidate(func(_ ui.Drawable) {
 		ml.Invalidate()
@@ -49,8 +51,14 @@ func (ml *MessageList) Draw(ctx *ui.Context) {
 
 	store := ml.Store()
 	if store == nil {
-		ml.spinner.Draw(ctx)
-		return
+		if ml.isInitalizing {
+			ml.spinner.Draw(ctx)
+			return
+		} else {
+			ml.spinner.Stop()
+			ml.drawEmptyMessage(ctx)
+			return
+		}
 	}
 
 	var (
@@ -111,9 +119,7 @@ func (ml *MessageList) Draw(ctx *ui.Context) {
 	}
 
 	if len(uids) == 0 {
-		msg := ml.conf.Ui.EmptyMessage
-		ctx.Printf((ctx.Width()/2)-(len(msg)/2), 0,
-			tcell.StyleDefault, "%s", msg)
+		ml.drawEmptyMessage(ctx)
 	}
 
 	if len(needsHeaders) != 0 {
@@ -171,6 +177,10 @@ func (ml *MessageList) SetStore(store *lib.MessageStore) {
 	ml.Invalidate()
 }
 
+func (ml *MessageList) SetInitDone() {
+	ml.isInitalizing = false
+}
+
 func (ml *MessageList) Store() *lib.MessageStore {
 	return ml.store
 }
@@ -209,3 +219,9 @@ func (ml *MessageList) Scroll() {
 	}
 	ml.Invalidate()
 }
+
+func (ml *MessageList) drawEmptyMessage(ctx *ui.Context) {
+	msg := ml.conf.Ui.EmptyMessage
+	ctx.Printf((ctx.Width()/2)-(len(msg)/2), 0,
+		tcell.StyleDefault, "%s", msg)
+}