Added setting to permanently delete on discard

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

@@ -2480,8 +2480,9 @@ public class FragmentCompose extends FragmentBase {
                 Log.i("Load action id=" + draft.id + " action=" + getActionName(action));
 
                 if (action == R.id.action_delete) {
+                    boolean discard_delete = prefs.getBoolean("discard_delete", false);
                     EntityFolder trash = db.folder().getFolderByType(draft.account, EntityFolder.TRASH);
-                    if (empty || trash == null)
+                    if (empty || trash == null || discard_delete)
                         EntityOperation.queue(context, draft, EntityOperation.DELETE);
                     else
                         EntityOperation.queue(context, draft, EntityOperation.MOVE, trash.id);

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

@@ -49,12 +49,13 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
     private SwitchCompat swCollapse;
     private SwitchCompat swAutoRead;
     private SwitchCompat swAutoMove;
+    private SwitchCompat swDiscardDelete;
     private SwitchCompat swAuthentication;
     private SwitchCompat swDisableTracking;
 
     private final static String[] RESET_OPTIONS = new String[]{
             "pull", "autoscroll", "swipenav", "doubletap", "autoexpand", "autoclose", "onclose",
-            "collapse", "autoread", "automove", "authentication", "disable_tracking"
+            "collapse", "autoread", "automove", "discard_delete", "authentication", "disable_tracking"
     };
 
     @Override
@@ -77,6 +78,7 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
         swCollapse = view.findViewById(R.id.swCollapse);
         swAutoRead = view.findViewById(R.id.swAutoRead);
         swAutoMove = view.findViewById(R.id.swAutoMove);
+        swDiscardDelete = view.findViewById(R.id.swDiscardDelete);
         swAuthentication = view.findViewById(R.id.swAuthentication);
         swDisableTracking = view.findViewById(R.id.swDisableTracking);
 
@@ -167,6 +169,13 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
             }
         });
 
+        swDiscardDelete.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("discard_delete", checked).apply();
+            }
+        });
+
         swAuthentication.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -246,6 +255,7 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
         swCollapse.setChecked(prefs.getBoolean("collapse", false));
         swAutoRead.setChecked(prefs.getBoolean("autoread", false));
         swAutoMove.setChecked(!prefs.getBoolean("automove", false));
+        swDiscardDelete.setChecked(prefs.getBoolean("discard_delete", false));
         swAuthentication.setChecked(prefs.getBoolean("authentication", true));
         swDisableTracking.setChecked(prefs.getBoolean("disable_tracking", true));
     }

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

@@ -179,6 +179,17 @@
                 app:layout_constraintTop_toBottomOf="@id/swAutoRead"
                 app:switchPadding="12dp" />
 
+            <androidx.appcompat.widget.SwitchCompat
+                android:id="@+id/swDiscardDelete"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="12dp"
+                android:text="@string/title_advanced_discard_delete"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/swAutoMove"
+                app:switchPadding="12dp" />
+
             <ImageView
                 android:id="@+id/ivAuth"
                 android:layout_width="21dp"
@@ -200,7 +211,7 @@
                 android:text="@string/title_advanced_authentication"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toEndOf="@id/ivAuth"
-                app:layout_constraintTop_toBottomOf="@id/swAutoMove"
+                app:layout_constraintTop_toBottomOf="@id/swDiscardDelete"
                 app:switchPadding="12dp" />
 
             <androidx.appcompat.widget.SwitchCompat

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

@@ -260,6 +260,7 @@
     <string name="title_advanced_onclose">On closing a conversation</string>
     <string name="title_advanced_autoread">Automatically mark messages read on moving messages</string>
     <string name="title_advanced_automove">Confirm moving messages</string>
+    <string name="title_advanced_discard_delete">On discard draft permanently delete draft</string>
     <string name="title_advanced_authentication">Show a warning when the receiving server could not authenticate the message</string>
     <string name="title_advanced_tracking">Automatically recognize and disable tracking images</string>