From 59ec619c8f3a34e90804067691854864d45d45e6 Mon Sep 17 00:00:00 2001
From: Damyan Ivanov <dam+mobileledger@ktnx.net>
Date: Sat, 13 Feb 2021 21:55:12 +0200
Subject: [PATCH] make pattern editor survive reconfiguration

---
 .../mobileledger/ui/templates/TemplateDetailsViewModel.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateDetailsViewModel.java b/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateDetailsViewModel.java
index f5dacdc1..608bb634 100644
--- a/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateDetailsViewModel.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateDetailsViewModel.java
@@ -44,6 +44,7 @@ public class TemplateDetailsViewModel extends ViewModel {
             new MutableLiveData<>(Collections.emptyList());
     private Long mPatternId;
     private String mDefaultPatternName;
+    private boolean itemsLoaded = false;
 
     public String getDefaultPatternName() {
         return mDefaultPatternName;
@@ -86,6 +87,9 @@ public class TemplateDetailsViewModel extends ViewModel {
             items.setValue(newList);
     }
     public LiveData<List<TemplateDetailsItem>> getItems(Long patternId) {
+        if (itemsLoaded && Objects.equals(patternId, this.mPatternId))
+            return items;
+
         if (patternId != null && patternId <= 0)
             throw new IllegalArgumentException("Pattern ID " + patternId + " is invalid");
 
@@ -93,6 +97,7 @@ public class TemplateDetailsViewModel extends ViewModel {
 
         if (mPatternId == null) {
             resetItems();
+            itemsLoaded = true;
             return items;
         }
 
@@ -114,6 +119,7 @@ public class TemplateDetailsViewModel extends ViewModel {
                     Logger.debug("patterns-db", "Loaded pattern item " + i);
                 }
                 items.postValue(l);
+                itemsLoaded = true;
 
                 dbList.removeObserver(this);
             }
-- 
2.39.5