enhancement: reorderable instance selector (#1045)

unit/selectinstance/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/unit/selectinstance/SelectInstanceBottomSheet.kt

@@ -76,28 +76,30 @@ class SelectInstanceBottomSheet : Screen {
         var instanceToDelete by remember { mutableStateOf<String?>(null) }
 
         LaunchedEffect(model) {
-            model.effects.onEach { evt ->
-                when (evt) {
-                    SelectInstanceMviModel.Effect.CloseDialog -> {
-                        changeInstanceDialogOpen = false
-                    }
+            model.effects
+                .onEach { evt ->
+                    when (evt) {
+                        SelectInstanceMviModel.Effect.CloseDialog -> {
+                            changeInstanceDialogOpen = false
+                        }
 
-                    is SelectInstanceMviModel.Effect.Confirm -> {
-                        notificationCenter.send(NotificationCenterEvent.InstanceSelected(evt.instance))
-                        navigationCoordinator.hideBottomSheet()
+                        is SelectInstanceMviModel.Effect.Confirm -> {
+                            notificationCenter.send(NotificationCenterEvent.InstanceSelected(evt.instance))
+                            navigationCoordinator.hideBottomSheet()
+                        }
                     }
-                }
-            }.launchIn(this)
+                }.launchIn(this)
         }
 
         Column(
             modifier =
-                Modifier.padding(
-                    top = Spacing.s,
-                    start = Spacing.s,
-                    end = Spacing.s,
-                    bottom = Spacing.m,
-                ).fillMaxHeight(0.6f),
+                Modifier
+                    .padding(
+                        top = Spacing.s,
+                        start = Spacing.s,
+                        end = Spacing.s,
+                        bottom = Spacing.m,
+                    ).fillMaxHeight(0.6f),
             verticalArrangement = Arrangement.spacedBy(Spacing.s),
         ) {
             Box(
@@ -158,15 +160,19 @@ class SelectInstanceBottomSheet : Screen {
                             shadowElevation = elevation,
                         ) {
                             SelectInstanceItem(
-                                modifier = Modifier.draggableHandle(),
                                 instance = instance,
                                 isActive = isActive,
+                                onDragStarted =
+                                    rememberCallback(model) {
+                                        model.reduce(SelectInstanceMviModel.Intent.HapticIndication)
+                                    },
                                 onClick =
                                     rememberCallback(model) {
                                         model.reduce(
                                             SelectInstanceMviModel.Intent.SelectInstance(instance),
                                         )
                                     },
+                                reorderableScope = this,
                                 options =
                                     buildList {
                                         if (!isActive) {

unit/selectinstance/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/unit/selectinstance/SelectInstanceMviModel.kt

@@ -8,13 +8,24 @@ interface SelectInstanceMviModel :
     MviModel<SelectInstanceMviModel.Intent, SelectInstanceMviModel.State, SelectInstanceMviModel.Effect>,
     ScreenModel {
     sealed interface Intent {
-        data class SelectInstance(val value: String) : Intent
+        data class SelectInstance(
+            val value: String,
+        ) : Intent
 
-        data class DeleteInstance(val value: String) : Intent
+        data class DeleteInstance(
+            val value: String,
+        ) : Intent
 
-        data class ChangeInstanceName(val value: String) : Intent
+        data class ChangeInstanceName(
+            val value: String,
+        ) : Intent
 
-        data class SwapIntances(val from: Int, val to: Int) : Intent
+        data object HapticIndication : Intent
+
+        data class SwapIntances(
+            val from: Int,
+            val to: Int,
+        ) : Intent
 
         data object SubmitChangeInstanceDialog : Intent
     }
@@ -30,6 +41,8 @@ interface SelectInstanceMviModel :
     sealed interface Effect {
         data object CloseDialog : Effect
 
-        data class Confirm(val instance: String) : Effect
+        data class Confirm(
+            val instance: String,
+        ) : Effect
     }
 }

unit/selectinstance/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/unit/selectinstance/SelectInstanceViewModel.kt

@@ -4,6 +4,7 @@ import cafe.adriel.voyager.core.model.screenModelScope
 import com.github.diegoberaldin.raccoonforlemmy.core.architecture.DefaultMviModel
 import com.github.diegoberaldin.raccoonforlemmy.core.persistence.repository.InstanceSelectionRepository
 import com.github.diegoberaldin.raccoonforlemmy.core.utils.ValidationError
+import com.github.diegoberaldin.raccoonforlemmy.core.utils.vibrate.HapticFeedback
 import com.github.diegoberaldin.raccoonforlemmy.domain.identity.repository.ApiConfigurationRepository
 import com.github.diegoberaldin.raccoonforlemmy.domain.lemmy.repository.CommunityRepository
 import kotlinx.coroutines.FlowPreview
@@ -18,22 +19,27 @@ class SelectInstanceViewModel(
     private val instanceRepository: InstanceSelectionRepository,
     private val communityRepository: CommunityRepository,
     private val apiConfigurationRepository: ApiConfigurationRepository,
-) : SelectInstanceMviModel,
-    DefaultMviModel<SelectInstanceMviModel.Intent, SelectInstanceMviModel.State, SelectInstanceMviModel.Effect>(
+    private val hapticFeedback: HapticFeedback,
+) : DefaultMviModel<SelectInstanceMviModel.Intent, SelectInstanceMviModel.State, SelectInstanceMviModel.Effect>(
         initialState = SelectInstanceMviModel.State(),
-    ) {
+    ),
+    SelectInstanceMviModel {
     private val saveOperationChannel = Channel<List<String>>()
 
     init {
         screenModelScope.launch {
-            apiConfigurationRepository.instance.onEach { instance ->
-                updateState { it.copy(currentInstance = instance) }
-            }.launchIn(this)
+            apiConfigurationRepository.instance
+                .onEach { instance ->
+                    updateState { it.copy(currentInstance = instance) }
+                }.launchIn(this)
 
             @OptIn(FlowPreview::class)
-            saveOperationChannel.receiveAsFlow().debounce(500).onEach { newInstances ->
-                instanceRepository.updateAll(newInstances)
-            }.launchIn(this)
+            saveOperationChannel
+                .receiveAsFlow()
+                .debounce(500)
+                .onEach { newInstances ->
+                    instanceRepository.updateAll(newInstances)
+                }.launchIn(this)
         }
 
         if (uiState.value.instances.isEmpty()) {
@@ -59,6 +65,7 @@ class SelectInstanceViewModel(
             is SelectInstanceMviModel.Intent.SubmitChangeInstanceDialog -> submitChangeInstance()
             is SelectInstanceMviModel.Intent.DeleteInstance -> deleteInstance(intent.value)
             is SelectInstanceMviModel.Intent.SwapIntances -> swapInstances(intent.from, intent.to)
+            SelectInstanceMviModel.Intent.HapticIndication -> hapticFeedback.vibrate()
         }
     }
 

unit/selectinstance/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/unit/selectinstance/components/SelectInstanceItem.kt

@@ -33,13 +33,16 @@ import com.github.diegoberaldin.raccoonforlemmy.core.commonui.lemmyui.Option
 import com.github.diegoberaldin.raccoonforlemmy.core.commonui.lemmyui.OptionId
 import com.github.diegoberaldin.raccoonforlemmy.core.utils.compose.onClick
 import com.github.diegoberaldin.raccoonforlemmy.core.utils.toLocalDp
+import sh.calvin.reorderable.ReorderableCollectionItemScope
 
 @Composable
 internal fun SelectInstanceItem(
     modifier: Modifier = Modifier,
+    reorderableScope: ReorderableCollectionItemScope,
     instance: String,
     isActive: Boolean = false,
     onClick: (() -> Unit)? = null,
+    onDragStarted: (() -> Unit)? = null,
     options: List<Option> = emptyList(),
     onOptionSelected: ((OptionId) -> Unit)? = null,
 ) {
@@ -84,10 +87,17 @@ internal fun SelectInstanceItem(
                         Modifier
                             .size(IconSize.m)
                             .padding(Spacing.xs)
-                            .onGloballyPositioned {
+                            .then(
+                                with(reorderableScope) {
+                                    Modifier.draggableHandle(
+                                        onDragStarted = {
+                                            onDragStarted?.invoke()
+                                        },
+                                    )
+                                },
+                            ).onGloballyPositioned {
                                 optionsOffset = it.positionInParent()
-                            }
-                            .onClick(
+                            }.onClick(
                                 onClick = {
                                     optionsMenuOpen = true
                                 },

unit/selectinstance/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/unit/selectinstance/di/SelectInstanceModule.kt

@@ -11,6 +11,7 @@ val selectInstanceModule =
                 instanceRepository = get(),
                 communityRepository = get(),
                 apiConfigurationRepository = get(),
+                hapticFeedback = get(),
             )
         }
     }