feat: replace dialog with swipe-to-reveal delete button for drafts

Instead of showing a confirmation dialog, the swipe now stays open
revealing a red background with a clickable "Request Deletion" button.
Supports swiping from both left-to-right and right-to-left directions.
The user taps the revealed button to confirm deletion.

https://claude.ai/code/session_01JWJxejv2EKrPj2KGEfPPxU

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/SwipeToDelete.kt

@@ -22,6 +22,7 @@ package com.vitorpamplona.amethyst.ui.components
 
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.RowScope
@@ -30,7 +31,6 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Delete
-import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
@@ -40,14 +40,11 @@ import androidx.compose.material3.SwipeToDismissBoxValue.EndToStart
 import androidx.compose.material3.SwipeToDismissBoxValue.Settled
 import androidx.compose.material3.SwipeToDismissBoxValue.StartToEnd
 import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
 import androidx.compose.material3.rememberSwipeToDismissBoxState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -56,6 +53,7 @@ import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.ui.stringRes
+import kotlinx.coroutines.launch
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -98,56 +96,26 @@ fun SwipeToDeleteContainer(
 @Composable
 fun SwipeToDeleteWithConfirmation(
     modifier: Modifier = Modifier,
-    onStartToEnd: () -> Unit,
+    onDelete: () -> Unit,
     content: @Composable (RowScope.() -> Unit),
 ) {
-    var showConfirmDialog by remember { mutableStateOf(false) }
+    val scope = rememberCoroutineScope()
 
     val dismissState =
         rememberSwipeToDismissBoxState(
-            confirmValueChange = {
-                when (it) {
-                    StartToEnd -> {
-                        showConfirmDialog = true
-                    }
-                    EndToStart -> {}
-                    Settled -> {}
-                }
-                return@rememberSwipeToDismissBoxState false
-            },
             positionalThreshold = { it * .40f },
         )
 
-    if (showConfirmDialog) {
-        AlertDialog(
-            onDismissRequest = { showConfirmDialog = false },
-            title = { Text(text = stringRes(id = R.string.request_deletion)) },
-            text = { Text(text = stringRes(id = R.string.delete_draft_confirmation)) },
-            confirmButton = {
-                TextButton(
-                    onClick = {
-                        showConfirmDialog = false
-                        onStartToEnd()
-                    },
-                ) {
-                    Text(text = stringRes(id = R.string.yes))
-                }
-            },
-            dismissButton = {
-                TextButton(
-                    onClick = { showConfirmDialog = false },
-                ) {
-                    Text(text = stringRes(id = R.string.no))
-                }
-            },
-        )
-    }
-
     SwipeToDismissBox(
         state = dismissState,
         modifier = modifier,
-        backgroundContent = { DismissBackground(dismissState) },
-        enableDismissFromEndToStart = false,
+        backgroundContent = {
+            ConfirmDeleteBackground(dismissState) {
+                onDelete()
+                scope.launch { dismissState.reset() }
+            }
+        },
+        enableDismissFromEndToStart = true,
         content = content,
     )
 }
@@ -191,3 +159,53 @@ fun DismissBackground(dismissState: SwipeToDismissBoxState) {
         )
     }
 }
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun ConfirmDeleteBackground(
+    dismissState: SwipeToDismissBoxState,
+    onConfirmDelete: () -> Unit,
+) {
+    val settled = dismissState.currentValue == Settled && dismissState.targetValue == Settled
+
+    val color by animateColorAsState(
+        if (!settled) {
+            Color(0xFFFF1744)
+        } else {
+            MaterialTheme.colorScheme.surfaceVariant
+        },
+        label = "ConfirmDeleteBackground",
+    )
+
+    val haptic = LocalHapticFeedback.current
+    LaunchedEffect(key1 = dismissState.currentValue > dismissState.targetValue) {
+        if (dismissState.progress > 0 && dismissState.progress < 1) {
+            haptic.performHapticFeedback(HapticFeedbackType.LongPress)
+        }
+    }
+
+    Row(
+        modifier =
+            Modifier
+                .fillMaxSize()
+                .background(color)
+                .clickable(enabled = !settled) { onConfirmDelete() }
+                .padding(20.dp, 8.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.SpaceBetween,
+    ) {
+        Icon(
+            Icons.Default.Delete,
+            contentDescription = stringRes(id = R.string.request_deletion),
+        )
+        Text(
+            text = stringRes(id = R.string.request_deletion),
+            color = Color.White,
+            style = MaterialTheme.typography.titleMedium,
+        )
+        Icon(
+            Icons.Default.Delete,
+            contentDescription = stringRes(id = R.string.request_deletion),
+        )
+    }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/drafts/DraftListScreen.kt

@@ -170,7 +170,7 @@ private fun DraftFeedLoaded(
             Row(Modifier.fillMaxWidth().animateItem()) {
                 SwipeToDeleteWithConfirmation(
                     modifier = Modifier.fillMaxWidth().animateContentSize(),
-                    onStartToEnd = { accountViewModel.delete(item) },
+                    onDelete = { accountViewModel.delete(item) },
                 ) {
                     NoteCompose(
                         item,

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

@@ -1473,7 +1473,6 @@
     <string name="add_a_blossom_server">Add a Blossom Server</string>
     <string name="delete_all">Delete all</string>
     <string name="delete_all_drafts_confirmation">Are you sure you want to delete all drafts?</string>
-    <string name="delete_draft_confirmation">Are you sure you want to delete this draft?</string>
     <string name="and_more" translatable="false">" +%1$s"</string>
     <string name="stack">Stack:</string>