refactor(android): prepare SettingsScreen composable for standalone preview

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/screens/LobstersPostsScreen.kt

@@ -283,13 +283,15 @@ fun LobstersPostsScreen(
         }
         composable<Settings> {
           SettingsScreen(
-            context = context,
+            openInputStream = context.contentResolver::openInputStream,
+            openOutputStream = context.contentResolver::openOutputStream,
             openLibrariesScreen = { navController.navigate(AboutLibraries) },
             importPosts = viewModel::importPosts,
             exportPostsAsJson = viewModel::exportPostsAsJson,
             exportPostsAsHtml = viewModel::exportPostsAsHtml,
             snackbarHostState = snackbarHostState,
             contentPadding = contentPadding,
+            modifier = Modifier.fillMaxSize(),
           )
         }
         composable<AboutLibraries> {

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/screens/SettingsScreen.kt

@@ -6,7 +6,7 @@
  */
 package dev.msfjarvis.claw.android.ui.screens
 
-import android.content.Context
+import android.net.Uri
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.clickable
@@ -16,7 +16,6 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.RowScope
-import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
@@ -51,9 +50,10 @@ private const val HTML_MIME_TYPE = "application/html"
 
 @Composable
 fun SettingsScreen(
-  context: Context,
   openLibrariesScreen: () -> Unit,
   snackbarHostState: SnackbarHostState,
+  openInputStream: (Uri) -> InputStream?,
+  openOutputStream: (Uri) -> OutputStream?,
   importPosts: suspend (InputStream) -> Unit,
   exportPostsAsJson: suspend (OutputStream) -> Unit,
   exportPostsAsHtml: suspend (OutputStream) -> Unit,
@@ -61,7 +61,7 @@ fun SettingsScreen(
   modifier: Modifier = Modifier,
 ) {
   val coroutineScope = rememberCoroutineScope()
-  Box(modifier = modifier.padding(contentPadding).fillMaxSize()) {
+  Box(modifier = modifier.padding(contentPadding)) {
     Column {
       ListItem(
         headlineContent = { Text("Data transfer") },
@@ -77,11 +77,11 @@ fun SettingsScreen(
             horizontalArrangement = Arrangement.spacedBy(32.dp),
             modifier = Modifier.fillMaxWidth(),
           ) {
-            ImportPosts(context, coroutineScope, snackbarHostState, importPosts)
+            ImportPosts(openInputStream, coroutineScope, snackbarHostState, importPosts)
             ExportPosts(
-              context,
               coroutineScope,
               snackbarHostState,
+              openOutputStream,
               exportPostsAsJson,
               exportPostsAsHtml,
             )
@@ -105,7 +105,7 @@ fun SettingsScreen(
 
 @Composable
 private fun RowScope.ImportPosts(
-  context: Context,
+  openInputStream: (Uri) -> InputStream?,
   coroutineScope: CoroutineScope,
   snackbarHostState: SnackbarHostState,
   importPosts: suspend (InputStream) -> Unit,
@@ -118,7 +118,7 @@ private fun RowScope.ImportPosts(
         return@rememberLauncherForActivityResult
       }
       coroutineScope.launch {
-        context.contentResolver.openInputStream(uri)?.use { stream ->
+        openInputStream(uri)?.use { stream ->
           importPosts(stream)
           snackbarHostState.showSnackbarDismissing("Successfully imported posts")
         }
@@ -135,9 +135,9 @@ private fun RowScope.ImportPosts(
 
 @Composable
 private fun RowScope.ExportPosts(
-  context: Context,
   coroutineScope: CoroutineScope,
   snackbarHostState: SnackbarHostState,
+  openOutputStream: (Uri) -> OutputStream?,
   exportPostsAsJson: suspend (OutputStream) -> Unit,
   exportPostsAsHtml: suspend (OutputStream) -> Unit,
   modifier: Modifier = Modifier,
@@ -150,7 +150,7 @@ private fun RowScope.ExportPosts(
         return@rememberLauncherForActivityResult
       }
       coroutineScope.launch {
-        context.contentResolver.openOutputStream(uri)?.use { stream ->
+        openOutputStream(uri)?.use { stream ->
           exportPostsAsJson(stream)
           snackbarHostState.showSnackbarDismissing("Successfully exported posts")
         }
@@ -164,7 +164,7 @@ private fun RowScope.ExportPosts(
         return@rememberLauncherForActivityResult
       }
       coroutineScope.launch {
-        context.contentResolver.openOutputStream(uri)?.use { stream ->
+        openOutputStream(uri)?.use { stream ->
           exportPostsAsHtml(stream)
           snackbarHostState.showSnackbarDismissing("Successfully exported posts")
         }