Search improvements

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

@@ -35,6 +35,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
     private ViewModelBrowse model;
     private Handler handler;
     private IBoundaryCallbackMessages intf;
+    private boolean searching = false;
 
     private static ExecutorService executor = Executors.newSingleThreadExecutor(Helper.backgroundThreadFactory);
 
@@ -66,7 +67,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
     }
 
     boolean isSearching() {
-        return model.isSearching();
+        return searching;
     }
 
     int getLoaded() {
@@ -90,6 +91,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
             @Override
             public void run() {
                 try {
+                    searching = true;
                     handler.post(new Runnable() {
                         @Override
                         public void run() {
@@ -106,6 +108,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
                         }
                     });
                 } finally {
+                    searching = false;
                     handler.post(new Runnable() {
                         @Override
                         public void run() {

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

@@ -650,7 +650,7 @@ public class FragmentMessages extends FragmentEx {
 
                     new SimpleTask<Void>() {
                         @Override
-                        protected Void onLoad(Context context, Bundle args) throws Throwable {
+                        protected Void onLoad(Context context, Bundle args) {
                             DB.getInstance(context).message().deleteFoundMessages();
                             return null;
                         }

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

@@ -36,8 +36,8 @@ public class ViewModelBrowse extends ViewModel {
     private IMAPStore istore = null;
     private IMAPFolder ifolder = null;
     private Message[] imessages = null;
-    private int index;
+
-    private boolean searching = false;
+    private int index = -1;
     private int loaded = 0;
 
     void set(Context context, long folder, String search, int pageSize) {
@@ -47,7 +47,6 @@ public class ViewModelBrowse extends ViewModel {
         this.pageSize = pageSize;
 
         this.index = -1;
-        this.searching = false;
         this.loaded = 0;
     }
 
@@ -55,18 +54,11 @@ public class ViewModelBrowse extends ViewModel {
         return context;
     }
 
-    boolean isSearching() {
-        return searching;
-    }
-
     int getLoaded() {
         return loaded;
     }
 
     void load() throws MessagingException, FolderClosedIOException {
-        try {
-            searching = true;
-
         DB db = DB.getInstance(context);
         EntityFolder folder = db.folder().getFolder(fid);
         if (folder.account == null) // outbox
@@ -131,9 +123,12 @@ public class ViewModelBrowse extends ViewModel {
                     try {
                         long uid = ifolder.getUID(isub[j]);
                         Log.i(Helper.TAG, "Boundary sync uid=" + uid);
+                        EntityMessage message = db.message().getMessageByUid(fid, uid, search != null);
+                        if (message == null) {
                             ServiceSynchronize.synchronizeMessage(context, folder, ifolder, (IMAPMessage) isub[j], search != null);
                             count++;
                             loaded++;
+                        }
                     } catch (MessageRemovedException ex) {
                         Log.w(Helper.TAG, "Boundary " + ex + "\n" + Log.getStackTraceString(ex));
                     } catch (FolderClosedException ex) {
@@ -153,9 +148,6 @@ public class ViewModelBrowse extends ViewModel {
         }
 
         Log.i(Helper.TAG, "Boundary done");
-        } finally {
-            searching = false;
-        }
     }
 
     void clear() {