Added account warning about no identities

app/src/main/java/eu/faircode/email/AdapterAccount.java

@@ -70,6 +70,7 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
         private ImageView ivState;
         private TextView tvHost;
         private TextView tvLast;
+        private TextView tvIdentity;
         private TextView tvDrafts;
         private TextView tvWarning;
         private TextView tvError;
@@ -88,6 +89,7 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
             ivState = itemView.findViewById(R.id.ivState);
             tvHost = itemView.findViewById(R.id.tvHost);
             tvLast = itemView.findViewById(R.id.tvLast);
+            tvIdentity = itemView.findViewById(R.id.tvIdentity);
             tvDrafts = itemView.findViewById(R.id.tvDrafts);
             tvWarning = itemView.findViewById(R.id.tvWarning);
             tvError = itemView.findViewById(R.id.tvError);
@@ -139,6 +141,7 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
             tvLast.setText(context.getString(R.string.title_last_connected,
                     account.last_connected == null ? "-" : df.format(account.last_connected)));
 
+            tvIdentity.setVisibility(account.identities > 0 || !settings ? View.GONE : View.VISIBLE);
             tvDrafts.setVisibility(account.drafts || !settings ? View.GONE : View.VISIBLE);
 
             tvWarning.setText(account.warning);

app/src/main/java/eu/faircode/email/DaoAccount.java

@@ -52,6 +52,10 @@ public interface DaoAccount {
             "    AND folder.type <> '" + EntityFolder.OUTBOX + "'" +
             "    AND NOT ui_seen" +
             "    AND NOT ui_hide) AS unseen" +
+            ", (SELECT COUNT(identity.id)" +
+            "    FROM identity" +
+            "    WHERE identity.account = account.id" +
+            "    AND identity.synchronize) AS identities" +
             ", (SELECT COUNT(message.id)" +
             "    FROM message" +
             "    JOIN folder ON folder.id = message.folder" +

app/src/main/java/eu/faircode/email/TupleAccountEx.java

@@ -23,6 +23,7 @@ public class TupleAccountEx extends EntityAccount {
     public int unseen;
     public int unsent;
     public int operations;
+    public int identities; // synchronizing
     public boolean drafts;
 
     public boolean uiEquals(Object obj) {
@@ -30,6 +31,7 @@ public class TupleAccountEx extends EntityAccount {
             TupleAccountEx other = (TupleAccountEx) obj;
             return (super.equals(obj) &&
                     this.unseen == other.unseen &&
+                    this.identities == other.identities &&
                     this.drafts == other.drafts);
         } else
             return false;
@@ -43,6 +45,7 @@ public class TupleAccountEx extends EntityAccount {
                     this.unseen == other.unseen &&
                     this.unsent == other.unsent &&
                     this.operations == other.operations &&
+                    this.identities == other.identities &&
                     this.drafts == other.drafts);
         } else
             return false;

app/src/main/res/layout/item_account.xml

@@ -130,6 +130,20 @@
             app:layout_constraintStart_toEndOf="@+id/ivState"
             app:layout_constraintTop_toBottomOf="@id/tvHost" />
 
+        <TextView
+            android:id="@+id/tvIdentity"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="6dp"
+            android:layout_marginEnd="6dp"
+            android:text="@string/title_identity_required"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textColor="?attr/colorWarning"
+            android:textIsSelectable="true"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/vwColor"
+            app:layout_constraintTop_toBottomOf="@id/tvLast" />
+
         <TextView
             android:id="@+id/tvDrafts"
             android:layout_width="0dp"
@@ -142,7 +156,7 @@
             android:textIsSelectable="true"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/vwColor"
-            app:layout_constraintTop_toBottomOf="@id/tvLast" />
+            app:layout_constraintTop_toBottomOf="@id/tvIdentity" />
 
         <TextView
             android:id="@+id/tvWarning"

app/src/main/res/values/strings.xml

@@ -292,6 +292,7 @@
     <string name="title_no_utf8">This provider does not support UTF-8</string>
     <string name="title_no_sync">Synchronization errors since %1$s</string>
     <string name="title_sync_errors">Synchronizing some folders failed</string>
+    <string name="title_identity_required">An identity is required to send messages</string>
     <string name="title_drafts_required">A drafts folder is required to send messages</string>
     <string name="title_account_delete">Delete this account permanently?</string>
     <string name="title_identity_delete">Delete this identity permanently?</string>