[geary/mjog/email-plugins: 59/61] Plugin.Email: Expose Geary.EmailFlags from the backing email

[Michael Gratton <mjog src gnome org>]

commit e6b8785037a2ca6ff2635715b0b0586814ec9090
Author: Michael Gratton <mike vee net>
Date:   Mon Mar 23 00:02:48 2020 +1100

    Plugin.Email: Expose Geary.EmailFlags from the backing email
    
    Implement the new property, ensure email has flags loaded when
    being loaded.

 src/client/application/application-email-store-factory.vala | 12 +++++++++++-
 src/client/plugin/plugin-email.vala                         |  3 +++
 2 files changed, 14 insertions(+), 1 deletion(-)
---
diff --git a/src/client/application/application-email-store-factory.vala 
b/src/client/application/application-email-store-factory.vala
index 805c6b37..7d7c94f1 100644
--- a/src/client/application/application-email-store-factory.vala
+++ b/src/client/application/application-email-store-factory.vala
@@ -14,6 +14,12 @@
 internal class Application.EmailStoreFactory : Geary.BaseObject {
 
 
+    private const Geary.Email.Field REQUIRED_FIELDS = (
+        ENVELOPE |
+        FLAGS
+    );
+
+
     private class EmailStoreImpl : Geary.BaseObject, Plugin.EmailStore {
 
 
@@ -61,7 +67,7 @@ internal class Application.EmailStoreFactory : Geary.BaseObject {
                 Gee.Collection<Geary.Email> batch =
                     yield context.emails.list_email_by_sparse_id_async(
                         accounts.get(account),
-                        ENVELOPE,
+                        REQUIRED_FIELDS,
                         NONE,
                         context.cancellable
                     );
@@ -95,6 +101,10 @@ internal class Application.EmailStoreFactory : Geary.BaseObject {
         }
         private IdImpl? _id = null;
 
+        public Geary.EmailFlags flags {
+            get { return this.backing.email_flags; }
+        }
+
         public string subject {
             get { return this._subject; }
         }
diff --git a/src/client/plugin/plugin-email.vala b/src/client/plugin/plugin-email.vala
index 8eb94ddb..554fe4fd 100644
--- a/src/client/plugin/plugin-email.vala
+++ b/src/client/plugin/plugin-email.vala
@@ -16,6 +16,9 @@ public interface Plugin.Email : Geary.BaseObject {
     /** Returns a unique identifier for this email. */
     public abstract EmailIdentifier identifier { get; }
 
+    /** Returns the set of mutable flags for the email. */
+    public abstract Geary.EmailFlags flags { get; }
+
     /** Returns the subject header value for the this email. */
     public abstract string subject { get; }