fix: prevent silent discard of event/task edits

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed old reminders not being removed when moving events ([#486])
 - Fixed drag and drop copying events instead of moving them ([#706])
 - Fixed crash when editing events with attendees ([#34])
+- Fixed event edits being silently discarded when using navigation arrow ([#803])
 
 ## [1.6.1] - 2025-09-01
 ### Changed
@@ -146,6 +147,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#729]: https://github.com/FossifyOrg/Calendar/issues/729
 [#732]: https://github.com/FossifyOrg/Calendar/issues/732
 [#761]: http://github.com/FossifyOrg/Calendar/issues/761
+[#803]: https://github.com/FossifyOrg/Calendar/issues/803
 
 [Unreleased]: https://github.com/FossifyOrg/Calendar/compare/1.6.1...HEAD
 [1.6.1]: https://github.com/FossifyOrg/Calendar/compare/1.6.0...1.6.1

app/src/main/kotlin/org/fossify/calendar/activities/EventActivity.kt

@@ -254,10 +254,26 @@ class EventActivity : SimpleActivity() {
 
     override fun onResume() {
         super.onResume()
+        setupToolbar()
+    }
+
+    private fun setupToolbar() {
         setupToolbar(binding.eventToolbar, NavigationIcon.Arrow)
+        binding.eventToolbar.setNavigationOnClickListener {
+            maybeShowUnsavedChangesDialog {
+                hideKeyboard()
+                finish()
+            }
+        }
     }
 
     override fun onBackPressed() {
+        maybeShowUnsavedChangesDialog {
+            super.onBackPressed()
+        }
+    }
+
+    private fun maybeShowUnsavedChangesDialog(discard: () -> Unit) {
         val now = System.currentTimeMillis()
         if (now - mLastSavePromptTS > SAVE_DISCARD_PROMPT_INTERVAL && isEventChanged()) {
             mLastSavePromptTS = now
@@ -271,11 +287,11 @@ class EventActivity : SimpleActivity() {
                 if (it) {
                     saveCurrentEvent()
                 } else {
-                    super.onBackPressed()
+                    discard()
                 }
             }
         } else {
-            super.onBackPressed()
+            discard()
         }
     }
 

app/src/main/kotlin/org/fossify/calendar/activities/TaskActivity.kt

@@ -86,7 +86,17 @@ class TaskActivity : SimpleActivity() {
 
     override fun onResume() {
         super.onResume()
+        setupToolbar()
+    }
+
+    private fun setupToolbar() {
         setupToolbar(binding.taskToolbar, NavigationIcon.Arrow)
+        binding.taskToolbar.setNavigationOnClickListener {
+            maybeShowUnsavedChangesDialog {
+                hideKeyboard()
+                finish()
+            }
+        }
     }
 
     private fun refreshMenuItems() {
@@ -137,6 +147,12 @@ class TaskActivity : SimpleActivity() {
     }
 
     override fun onBackPressed() {
+        maybeShowUnsavedChangesDialog {
+            super.onBackPressed()
+        }
+    }
+
+    private fun maybeShowUnsavedChangesDialog(discard: () -> Unit) {
         if (System.currentTimeMillis() - mLastSavePromptTS > SAVE_DISCARD_PROMPT_INTERVAL && isTaskChanged()) {
             mLastSavePromptTS = System.currentTimeMillis()
             ConfirmationAdvancedDialog(
@@ -149,11 +165,11 @@ class TaskActivity : SimpleActivity() {
                 if (it) {
                     saveCurrentTask()
                 } else {
-                    super.onBackPressed()
+                    discard()
                 }
             }
         } else {
-            super.onBackPressed()
+            discard()
         }
     }