Allow turning of browsing messages

Refs #138

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

@@ -654,6 +654,7 @@ public class FragmentMessages extends FragmentEx {
         if (TextUtils.isEmpty(search)) {
             SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
             String sort = prefs.getString("sort", "time");
+            boolean browse = prefs.getBoolean("browse", true);
             boolean debug = prefs.getBoolean("debug", false);
 
             if (messages != null)
@@ -693,7 +694,8 @@ public class FragmentMessages extends FragmentEx {
                             .build();
                     LivePagedListBuilder<Integer, TupleMessageEx> builder = new LivePagedListBuilder<>(
                             db.message().pagedFolder(folder, sort, false, debug), config);
-                    builder.setBoundaryCallback(searchCallback);
+                    if (browse)
+                        builder.setBoundaryCallback(searchCallback);
                     messages = builder.build();
 
                     break;

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

@@ -34,6 +34,7 @@ import androidx.annotation.Nullable;
 public class FragmentOptions extends FragmentEx {
     private CheckBox cbAvatars;
     private CheckBox cbLight;
+    private CheckBox cbBrowse;
     private CheckBox cbDebug;
 
     @Override
@@ -46,6 +47,7 @@ public class FragmentOptions extends FragmentEx {
         // Get controls
         cbAvatars = view.findViewById(R.id.cbAvatars);
         cbLight = view.findViewById(R.id.cbLight);
+        cbBrowse = view.findViewById(R.id.cbBrowse);
         cbDebug = view.findViewById(R.id.cbDebug);
 
         // Wire controls
@@ -68,6 +70,14 @@ public class FragmentOptions extends FragmentEx {
             }
         });
 
+        cbBrowse.setChecked(prefs.getBoolean("browse", true));
+        cbBrowse.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("browse", checked).apply();
+            }
+        });
+
         cbDebug.setChecked(prefs.getBoolean("debug", false));
         cbDebug.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override

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

@@ -103,6 +103,7 @@ public class FragmentSetup extends FragmentEx {
     static final List<String> EXPORT_SETTINGS = Arrays.asList(
             "avatars",
             "light",
+            "browse",
             "sort"
     );
 

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

@@ -31,6 +31,16 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/cbAvatars" />
 
+        <CheckBox
+            android:id="@+id/cbBrowse"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="12dp"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_advanced_browse"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/cbLight" />
+
         <CheckBox
             android:id="@+id/cbDebug"
             android:layout_width="wrap_content"
@@ -39,6 +49,6 @@
             android:layout_marginTop="12dp"
             android:text="@string/title_advanced_debug"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/cbLight" />
+            app:layout_constraintTop_toBottomOf="@id/cbBrowse" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </ScrollView>

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

@@ -78,6 +78,7 @@
     <string name="title_advanced">Advanced options</string>
     <string name="title_advanced_avatars">Show contact photos</string>
     <string name="title_advanced_light">Use notification light</string>
+    <string name="title_advanced_browse">Browse message on the server</string>
     <string name="title_advanced_debug">Debug mode</string>
 
     <string name="title_select">Select &#8230;</string>