2.19.1 — drag to reschedule can be turned off (#176)

Release branch for 2.19.1. Merging this cuts the release — versionName is bumped to 2.19.1 (versionCode 21901), which is what release.yaml picks up.

### What's in it

- **Drag to reschedule can be turned off** (#173). Settings → Views → *Drag to reschedule*, on by default. Turned off, no event block in the month, week or day view registers a drag gesture. The gate is `EventMoveScope.dragEnabled` rather than the scope itself, so the screen-reader "Move event" action — which only opens the edit form — stays available either way. The setting reads as off until the stored value has actually loaded, so a cold start can't hand out a drag before the preference is known.

### Release prep

- CHANGELOG 2.19.1 section written.
- Per-version "What's New" hand-written for all 12 store locales (`ar`, `de-DE`, `en-GB`, `en-US`, `es-ES`, `fr-FR`, `it-IT`, `pl-PL`, `pt-BR`, `pt-PT`, `ru-RU`, `zh-CN`).
- `lint test assembleDebug` and `check_translations.py` green locally.
- main is one commit ahead (Weblate #175, translations only) and merges clean — not merged into the branch, it comes along with this one.

Closes #173

Co-authored-by: Jean-Luc Makiola <business@jeanlucmakiola.de>
Reviewed-on: https://codeberg.org/jlmakiola/calendula/pulls/176

CHANGELOG.md

@@ -7,6 +7,30 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.19.1] — 2026-08-11
+
+### Added
+- **Drag to reschedule can be turned off.** Settings → Views → *Drag to
+  reschedule*, on by default. Off, no event can be picked up in the month, week
+  or day view — for anyone who kept moving appointments by accident while
+  scrolling ([#173]).
+- An early Brazilian Portuguese translation. Calendula has started speaking
+  Brazilian Portuguese, contributed as a community translation through
+  [Calendula's Weblate](https://weblate.dev.jeanlucmakiola.de/projects/calendula/).
+  About a third of the app is covered, so the rest still shows in English — you
+  can pick it under Settings → Language or in Android's per-app language
+  settings. Thanks to
+  [bkrz](https://weblate.dev.jeanlucmakiola.de/user/bkrz/) for getting it
+  started; help finishing it is very welcome.
+
+### Fixed
+- **The language picker forgot which language was picked.** Android hands the
+  applied language back with its script filled in — Simplified Chinese goes in
+  as `zh-CN` and comes out as `zh-Hans-CN` — so after a restart no entry in
+  Settings → Language showed as selected, and the row above it named the
+  language the long way round. Only languages that imply a script were
+  affected.
+
 ## [2.19.0] — 2026-08-10
 
 ### Added
@@ -1389,3 +1413,4 @@ automatically, with zero telemetry and no internet permission.
 [#80]: https://codeberg.org/jlmakiola/calendula/issues/80
 [#123]: https://codeberg.org/jlmakiola/calendula/issues/123
 [#163]: https://codeberg.org/jlmakiola/calendula/issues/163
+[#173]: https://codeberg.org/jlmakiola/calendula/issues/173

app/build.gradle.kts

@@ -28,8 +28,8 @@ android {
         // which builds this version and then creates the matching vX.Y.Z tag +
         // release itself (versionCode is pinned to MAJOR*10000 + MINOR*100 +
         // PATCH from versionName, e.g. 2.7.2 -> 20702). See docs/RELEASING.md.
-        versionCode = 21900
+        versionCode = 21901
-        versionName = "2.19.0"
+        versionName = "2.19.1"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

app/src/main/java/de/jeanlucmakiola/calendula/data/prefs/SettingsPrefs.kt

@@ -301,6 +301,19 @@ class SettingsPrefs @Inject constructor(
         store.edit { it[TODAY_BUTTON_IN_TOOLBAR_KEY] = enabled }
     }
 
+    /**
+     * Whether events can be dragged to another slot in the calendar views (#68,
+     * #173). Defaults to ON. Off means no block registers a drag gesture at all;
+     * rescheduling then goes through the edit form.
+     */
+    val dragToReschedule: Flow<Boolean> = store.data.map { prefs ->
+        prefs[DRAG_TO_RESCHEDULE_KEY] ?: true
+    }
+
+    suspend fun setDragToReschedule(enabled: Boolean) {
+        store.edit { it[DRAG_TO_RESCHEDULE_KEY] = enabled }
+    }
+
     /**
      * How far ahead the in-app Agenda screen shows events (v2.11). Defaults to
      * [AgendaRange.Month] — a month of upcoming events. Independent of the
@@ -945,6 +958,7 @@ class SettingsPrefs @Inject constructor(
         internal val MONTH_VIEW_STYLE_KEY = stringPreferencesKey("month_view_style")
         internal val TIMELINE_SCALE_KEY = stringPreferencesKey("timeline_scale")
         internal val TODAY_BUTTON_IN_TOOLBAR_KEY = booleanPreferencesKey("today_button_in_toolbar")
+        internal val DRAG_TO_RESCHEDULE_KEY = booleanPreferencesKey("drag_to_reschedule")
         internal val DEFAULT_VIEW_KEY = stringPreferencesKey("default_view")
         internal val QUICK_SWITCH_VIEWS_KEY = stringPreferencesKey("quick_switch_views")
         internal val DRAWER_VIEW_ORDER_KEY = stringPreferencesKey("drawer_view_order")

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHost.kt

@@ -312,9 +312,13 @@ fun CalendarHost(
         heldEditKey = key
         editKey = key
     }
-    val moveScope = remember(movableCalendarIds, reschedule) {
+    // Off by preference (#173) switches off the gesture, not the scope: blocks
+    // register no drag, while the edit form and its TalkBack action stay put.
+    val dragToReschedule = viewModel.dragToReschedule.collectAsStateWithLifecycle().value
+    val moveScope = remember(movableCalendarIds, reschedule, dragToReschedule) {
         EventMoveScope(
             movableCalendarIds = movableCalendarIds,
+            dragEnabled = dragToReschedule,
             move = reschedule::move,
             inFlight = reschedule.inFlight,
             undoStarted = reschedule.undoStarted,

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHostViewModel.kt

@@ -53,4 +53,18 @@ class CalendarHostViewModel @Inject constructor(
             started = SharingStarted.WhileSubscribed(5_000L),
             initialValue = false,
         )
+
+    /**
+     * Whether events may be dragged to another slot to reschedule them (#68, #173).
+     * Off until the stored value arrives, even though the preference itself defaults
+     * on: the wrong guess costs an enabled user a gesture for the few frames a cold
+     * start takes to read DataStore, but re-arms the one thing a disabled user
+     * switched off to be rid of.
+     */
+    val dragToReschedule: StateFlow<Boolean> = prefs.dragToReschedule
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            initialValue = false,
+        )
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/EventMoveScope.kt

@@ -29,6 +29,12 @@ class EventMoveScope(
      * the repository writes whatever it is handed — so this gate is load-bearing.
      */
     val movableCalendarIds: Set<Long>,
+    /**
+     * Whether the *gesture* is on (#173). Off gates the drag alone: [edit] and the
+     * TalkBack action below stay, since invoking a menu item can't cause the
+     * accidental drags the setting exists to stop.
+     */
+    val dragEnabled: Boolean,
     /** False when the drop was refused outright, so nothing will be written. */
     val move: (MoveRequest) -> Boolean,
     /**
@@ -91,6 +97,17 @@ fun ghostAlpha(lifted: Boolean): Float = animateFloatAsState(
     label = "ghost-alpha",
 ).value
 
+/**
+ * Whether [event] can be picked up and dragged — its calendar allows moving and
+ * the gesture is switched on. Not the same question as [eventMoveAction], which
+ * survives the setting.
+ */
+@Composable
+fun eventDragAllowed(event: EventInstance): Boolean {
+    val move = LocalEventMove.current ?: return false
+    return move.dragEnabled && move.allows(event)
+}
+
 /**
  * A TalkBack action that opens [event] in the edit form, so rescheduling isn't
  * pointer-only. Null when this event can't be moved.

app/src/main/java/de/jeanlucmakiola/calendula/ui/day/DayScreen.kt

@@ -92,6 +92,7 @@ import de.jeanlucmakiola.calendula.ui.common.TimelineDragController
 import de.jeanlucmakiola.calendula.ui.common.TimelineDragOverlay
 import de.jeanlucmakiola.calendula.ui.common.TimelineDrop
 import de.jeanlucmakiola.calendula.ui.common.beginsOn
+import de.jeanlucmakiola.calendula.ui.common.eventDragAllowed
 import de.jeanlucmakiola.calendula.ui.common.eventMoveAction
 import de.jeanlucmakiola.calendula.ui.common.rememberEventDragSource
 import de.jeanlucmakiola.calendula.ui.common.rememberTimelineDragController
@@ -737,7 +738,7 @@ private fun EventBlock(
     val moveAction = eventMoveAction(block.event)
     // A block clipped at the top continues from the previous day: its top edge
     // is midnight, not the event's start, so dragging it would invent a time.
-    val draggable = moveAction != null && block.beginsOn(date, zone)
+    val draggable = eventDragAllowed(block.event) && block.beginsOn(date, zone)
     val dragModifier = rememberEventDragSource(
         enabled = draggable,
         key = block.event.instanceId,

app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthScreen.kt

@@ -2172,7 +2172,7 @@ private fun monthChipDragModifier(
     rowHeightPx: Float,
     isRtl: Boolean,
 ): Modifier = rememberDragSurface(
-    enabled = moveScope != null && controller != null,
+    enabled = moveScope?.dragEnabled == true && controller != null,
     key = week.days.first(),
     onPickUp = { local, pointerInRoot, nodeInRoot, size ->
         val bandTop = band[0]?.takeIf { it.isAttached }?.positionInRoot()?.y

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsScreen.kt

@@ -302,13 +302,14 @@ private fun ReportProblemRow(position: Position) {
 @Composable
 private fun LanguageRow(position: Position) {
     val context = LocalContext.current
+    val supported = remember { AppLanguage.supportedTags(context, R.xml.locales_config) }
     // Setting a locale recreates the activity; mirror the choice locally so the
     // row updates instantly even before the recreation lands.
-    var current by remember { mutableStateOf(AppLanguage.currentTag()) }
+    var current by remember { mutableStateOf(AppLanguage.currentTag(supported)) }
     var showDialog by remember { mutableStateOf(false) }
 
     // null = follow the system; the rest are BCP-47 tags from locales_config.xml.
-    val options = remember { listOf<String?>(null) + AppLanguage.supportedTags(context, R.xml.locales_config) }
+    val options = remember(supported) { listOf<String?>(null) + supported }
 
     GroupedRow(
         title = stringResource(R.string.settings_language),

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsUiState.kt

@@ -42,6 +42,8 @@ data class SettingsUiState(
     val showWeekNumbers: Boolean = false,
     /** Whether the jump-to-today control sits in the top bar instead of the FAB (#60). */
     val todayButtonInToolbar: Boolean = false,
+    /** Whether events can be dragged to another slot to reschedule them (#68, #173). */
+    val dragToReschedule: Boolean = true,
     /** How far ahead the in-app Agenda screen shows events (v2.11). */
     val agendaScreenRange: AgendaRange = AgendaRange.Month,
     /** How far ahead the agenda widget shows events (v2.11). */

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsViewModel.kt

@@ -145,9 +145,15 @@ class SettingsViewModel @Inject constructor(
                     prefs.showWeekNumbers,
                     prefs.agendaShowToday,
                     prefs.softenCalendarColors,
+                    combine(
                         prefs.todayButtonInToolbar,
-                ) { hourLines, weekNumbers, showToday, soften, todayInToolbar ->
+                        prefs.dragToReschedule,
-                    DisplayToggles(hourLines, weekNumbers, showToday, soften, todayInToolbar)
+                        ::Pair,
+                    ),
+                ) { hourLines, weekNumbers, showToday, soften, (todayInToolbar, dragToMove) ->
+                    DisplayToggles(
+                        hourLines, weekNumbers, showToday, soften, todayInToolbar, dragToMove,
+                    )
                 },
             ) { view, screenRange, widgetRange, timeFormat, toggles ->
                 ViewSettings(
@@ -157,6 +163,7 @@ class SettingsViewModel @Inject constructor(
                     agendaShowToday = toggles.agendaShowToday,
                     softenColors = toggles.softenColors,
                     todayButtonInToolbar = toggles.todayButtonInToolbar,
+                    dragToReschedule = toggles.dragToReschedule,
                 )
             },
             combine(
@@ -189,6 +196,7 @@ class SettingsViewModel @Inject constructor(
                 agendaShowToday = views.agendaShowToday,
                 softenColors = views.softenColors,
                 todayButtonInToolbar = views.todayButtonInToolbar,
+                dragToReschedule = views.dragToReschedule,
                 agendaShowRangeBar = misc.showRangeBar,
                 autofocusEventTitle = misc.autofocusEventTitle,
                 pastEventDisplay = misc.pastEventDisplay,
@@ -289,6 +297,7 @@ class SettingsViewModel @Inject constructor(
         val agendaShowToday: Boolean,
         val softenColors: Boolean,
         val todayButtonInToolbar: Boolean,
+        val dragToReschedule: Boolean,
     )
 
     private data class DisplayToggles(
@@ -297,6 +306,7 @@ class SettingsViewModel @Inject constructor(
         val agendaShowToday: Boolean,
         val softenColors: Boolean,
         val todayButtonInToolbar: Boolean,
+        val dragToReschedule: Boolean,
     )
 
     private data class MiscSettings(
@@ -534,6 +544,10 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { prefs.setTodayButtonInToolbar(enabled) }
     }
 
+    fun setDragToReschedule(enabled: Boolean) {
+        viewModelScope.launch { prefs.setDragToReschedule(enabled) }
+    }
+
     /**
      * Switch the launcher label (#44). The card highlights at once, then settles
      * on what the component state reports; the writes are binder round-trips and

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/ViewsSettings.kt

@@ -114,7 +114,7 @@ internal fun ViewsScreen(
         GroupedRow(
             title = stringResource(R.string.settings_dim_completed),
             summary = stringResource(R.string.settings_dim_completed_summary),
-            position = Position.Bottom,
+            position = Position.Middle,
             trailing = {
                 Switch(
                     checked = state.dimCompletedEvents,
@@ -123,6 +123,18 @@ internal fun ViewsScreen(
             },
             onClick = { viewModel.setDimCompletedEvents(!state.dimCompletedEvents) },
         )
+        GroupedRow(
+            title = stringResource(R.string.settings_drag_to_reschedule),
+            summary = stringResource(R.string.settings_drag_to_reschedule_summary),
+            position = Position.Bottom,
+            trailing = {
+                Switch(
+                    checked = state.dragToReschedule,
+                    onCheckedChange = viewModel::setDragToReschedule,
+                )
+            },
+            onClick = { viewModel.setDragToReschedule(!state.dragToReschedule) },
+        )
 
         Spacer(Modifier.height(8.dp))
         SectionHeader(stringResource(R.string.settings_month_header))

app/src/main/java/de/jeanlucmakiola/calendula/ui/week/WeekScreen.kt

@@ -100,6 +100,7 @@ import de.jeanlucmakiola.calendula.ui.common.TimelineDragController
 import de.jeanlucmakiola.calendula.ui.common.TimelineDragOverlay
 import de.jeanlucmakiola.calendula.ui.common.TimelineDrop
 import de.jeanlucmakiola.calendula.ui.common.beginsOn
+import de.jeanlucmakiola.calendula.ui.common.eventDragAllowed
 import de.jeanlucmakiola.calendula.ui.common.eventMoveAction
 import de.jeanlucmakiola.calendula.ui.common.rememberEventDragSource
 import de.jeanlucmakiola.calendula.ui.common.rememberTimelineDragController
@@ -905,7 +906,7 @@ private fun EventBlock(
     val moveAction = eventMoveAction(block.event)
     // A block clipped at the top continues from the previous day: its top edge
     // is midnight, not the event's start, so dragging it would invent a time.
-    val draggable = moveAction != null && block.beginsOn(date, zone)
+    val draggable = eventDragAllowed(block.event) && block.beginsOn(date, zone)
     val dragModifier = rememberEventDragSource(
         enabled = draggable,
         key = block.event.instanceId,

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

@@ -439,6 +439,8 @@
     <string name="timeline_scale_custom_summary">The height you pinched the timeline to</string>
     <string name="settings_dim_completed">Dim completed events</string>
     <string name="settings_dim_completed_summary">Fade events that have already ended in month and week view</string>
+    <string name="settings_drag_to_reschedule">Drag to reschedule</string>
+    <string name="settings_drag_to_reschedule_summary">Move an event by dragging it to another day or time</string>
     <string name="settings_past_events">Past events</string>
     <string name="settings_past_events_show">Show</string>
     <string name="settings_past_events_dim">Dim</string>

app/src/main/res/xml/locales_config.xml

@@ -15,5 +15,6 @@
     <locale android:name="fr" />
     <locale android:name="it" />
     <locale android:name="pl" />
+    <locale android:name="pt-BR" />
     <locale android:name="zh-CN" />
 </locale-config>

fastlane/metadata/android/ar/changelogs/21901.txt

@@ -0,0 +1,3 @@
+جديد
+• صار بالإمكان إيقاف السحب لتغيير الموعد: الإعدادات ← العروض ← «السحب لتغيير الموعد». يبقى مفعّلاً افتراضياً؛ وعند إيقافه لا يمكن سحب الأحداث في عرض الشهر أو الأسبوع أو اليوم.
+• صار Calendula يتحدّث البرتغالية البرازيلية بفضل ترجمة من المجتمع. اخترها من الإعدادات ← اللغة.

fastlane/metadata/android/de-DE/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Neu
+• Verschieben per Drag & Drop lässt sich abschalten: Einstellungen → Ansichten → „Per Ziehen verschieben“. Standardmäßig bleibt es an; abgeschaltet lassen sich Termine in der Monats-, Wochen- und Tagesansicht nicht mehr aufnehmen.
+• Calendula spricht jetzt brasilianisches Portugiesisch – dank einer Community-Übersetzung. Auswählbar unter Einstellungen → Sprache.

fastlane/metadata/android/en-GB/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Added
+• Drag to reschedule can now be turned off: Settings → Views → “Drag to reschedule”. It stays on by default; switched off, events can no longer be picked up in the month, week or day view.
+• Calendula now speaks Brazilian Portuguese, thanks to a community translation. Pick it under Settings → Language.

fastlane/metadata/android/en-US/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Added
+• Drag to reschedule can now be turned off: Settings → Views → “Drag to reschedule”. It stays on by default; switched off, events can no longer be picked up in the month, week or day view.
+• Calendula now speaks Brazilian Portuguese, thanks to a community translation. Pick it under Settings → Language.

fastlane/metadata/android/es-ES/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Novedades
+• Ahora se puede desactivar el mover eventos arrastrando: Ajustes → Vistas → «Arrastrar para reprogramar». Sigue activado por defecto; desactivado, los eventos ya no se pueden arrastrar en las vistas de mes, semana y día.
+• Calendula ya habla portugués de Brasil, gracias a una traducción de la comunidad. Elígelo en Ajustes → Idioma.

fastlane/metadata/android/fr-FR/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Nouveautés
+• Le déplacement par glisser-déposer peut désormais être désactivé : Réglages → Vues → « Glisser pour déplacer ». Il reste activé par défaut ; désactivé, les événements ne peuvent plus être saisis en vue mois, semaine ou jour.
+• Calendula parle désormais le portugais brésilien, grâce à une traduction de la communauté. À choisir dans Réglages → Langue.

fastlane/metadata/android/it-IT/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Novità
+• Ora lo spostamento con il trascinamento si può disattivare: Impostazioni → Viste → «Trascina per spostare». Resta attivo di default; disattivato, gli eventi non si possono più trascinare nelle viste mese, settimana e giorno.
+• Calendula ora parla portoghese brasiliano, grazie a una traduzione della comunità. Si sceglie in Impostazioni → Lingua.

fastlane/metadata/android/pl-PL/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Nowości
+• Przenoszenie wydarzeń przeciąganiem można teraz wyłączyć: Ustawienia → Widoki → „Przeciągnij, aby przenieść”. Domyślnie pozostaje włączone; po wyłączeniu wydarzeń nie da się już chwycić w widoku miesiąca, tygodnia i dnia.
+• Calendula mówi teraz po portugalsku (Brazylia) dzięki tłumaczeniu społeczności. Wybierzesz je w Ustawienia → Język.

fastlane/metadata/android/pt-BR/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Novidades
+• Agora é possível desativar o mover eventos arrastando: Configurações → Visualizações → “Arrastar para reagendar”. Continua ativo por padrão; desativado, os eventos não podem mais ser arrastados nas visualizações de mês, semana e dia.
+• O Calendula agora fala português do Brasil, graças a uma tradução da comunidade. Escolha em Configurações → Idioma.

fastlane/metadata/android/pt-PT/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Novidades
+• Já é possível desativar o mover eventos arrastando: Definições → Vistas → «Arrastar para reagendar». Continua ativo por predefinição; desativado, os eventos deixam de poder ser arrastados nas vistas de mês, semana e dia.
+• O Calendula fala agora português do Brasil, graças a uma tradução da comunidade. Escolha em Definições → Idioma.

fastlane/metadata/android/ru-RU/changelogs/21901.txt

@@ -0,0 +1,3 @@
+Новое
+• Перенос событий перетаскиванием теперь можно отключить: Настройки → Виды → «Перетаскивание для переноса». По умолчанию включён; при отключении события больше нельзя подхватить в видах месяца, недели и дня.
+• Calendula теперь говорит на бразильском португальском — благодаря переводу сообщества. Выбрать можно в Настройки → Язык.

fastlane/metadata/android/zh-CN/changelogs/21901.txt

@@ -0,0 +1,3 @@
+新增
+• 现在可以关闭拖动改期：设置 → 视图 → “拖动改期”。默认保持开启；关闭后，月、周、日视图中的事件将无法再被拖起。
+• Calendula 现已支持巴西葡萄牙语，感谢社区翻译。可在设置 → 语言中选择。