feat(android): fully flesh out search screen

android/src/main/kotlin/dev/msfjarvis/claw/android/SearchActivity.kt

@@ -14,17 +14,12 @@ import androidx.activity.ComponentActivity
 import androidx.activity.SystemBarStyle
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.lazy.rememberLazyListState
-import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalUriHandler
-import androidx.compose.ui.unit.dp
-import androidx.navigation.compose.rememberNavController
 import com.deliveryhero.whetstone.Whetstone
 import com.deliveryhero.whetstone.activity.ContributesActivityInjector
-import dev.msfjarvis.claw.android.ui.lists.SearchList
-import dev.msfjarvis.claw.android.ui.rememberPostActions
+import dev.msfjarvis.claw.android.ui.screens.SearchScreen
 import dev.msfjarvis.claw.android.viewmodel.ClawViewModel
+import dev.msfjarvis.claw.common.comments.HTMLConverter
 import dev.msfjarvis.claw.common.theme.LobstersTheme
 import dev.msfjarvis.claw.common.urllauncher.UrlLauncher
 import javax.inject.Inject
@@ -33,7 +28,9 @@ import javax.inject.Inject
 class SearchActivity : ComponentActivity() {
 
   @Inject lateinit var urlLauncher: UrlLauncher
+  @Inject lateinit var htmlConverter: HTMLConverter
   @Inject lateinit var viewModel: ClawViewModel
+  private var webUri: String? = null
 
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
@@ -55,18 +52,7 @@ class SearchActivity : ComponentActivity() {
         dynamicColor = true,
         providedValues = arrayOf(LocalUriHandler provides urlLauncher),
       ) {
-        val navController = rememberNavController()
-        val postActions = rememberPostActions(urlLauncher, navController, viewModel)
-        val listState = rememberLazyListState()
-        SearchList(
-          items = viewModel.searchResults,
-          listState = listState,
-          isPostSaved = viewModel::isPostSaved,
-          postActions = postActions,
-          searchQuery = viewModel.searchQuery,
-          setSearchQuery = { query -> viewModel.searchQuery = query },
-          modifier = Modifier.padding(top = 56.dp),
-        )
+        SearchScreen(urlLauncher, htmlConverter, { webUri = it })
       }
     }
   }
@@ -74,7 +60,11 @@ class SearchActivity : ComponentActivity() {
   override fun onProvideAssistContent(outContent: AssistContent?) {
     super.onProvideAssistContent(outContent)
     if (outContent != null) {
-      outContent.webUri = Uri.parse("https://lobste.rs/search")
+      if (webUri != null) {
+        outContent.webUri = Uri.parse(webUri)
+      } else {
+        outContent.webUri = null
+      }
     }
   }
 }

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/lists/SearchList.kt

@@ -19,7 +19,6 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -54,11 +53,6 @@ fun SearchList(
     setSearchQuery(query)
     lazyPagingItems.refresh()
   }
-  DisposableEffect(true) {
-    // Clear search field when navigating away
-    onDispose { setSearchQuery("") }
-  }
-
   var searchActive by remember { mutableStateOf(false) }
   Column(modifier = modifier.semantics { isTraversalGroup = true }.zIndex(1f).fillMaxWidth()) {
     SearchBar(

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/navigation/Destinations.kt

@@ -35,6 +35,10 @@ sealed class Destinations {
     override val route: String = "datatransfer"
   }
 
+  object Search : Destinations() {
+    override val route: String = "search"
+  }
+
   companion object {
     val startDestination
       get() = Hottest

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

@@ -0,0 +1,75 @@
+/*
+ * Copyright © 2023 Harsh Shandilya.
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+package dev.msfjarvis.claw.android.ui.screens
+
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material3.Scaffold
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.navigation.NavType
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import androidx.navigation.navArgument
+import com.deliveryhero.whetstone.compose.injectedViewModel
+import dev.msfjarvis.claw.android.ui.lists.SearchList
+import dev.msfjarvis.claw.android.ui.navigation.Destinations
+import dev.msfjarvis.claw.android.ui.rememberPostActions
+import dev.msfjarvis.claw.android.viewmodel.ClawViewModel
+import dev.msfjarvis.claw.common.comments.CommentsPage
+import dev.msfjarvis.claw.common.comments.HTMLConverter
+import dev.msfjarvis.claw.common.urllauncher.UrlLauncher
+
+@Composable
+fun SearchScreen(
+  urlLauncher: UrlLauncher,
+  htmlConverter: HTMLConverter,
+  setWebUri: (String?) -> Unit,
+  modifier: Modifier = Modifier,
+  viewModel: ClawViewModel = injectedViewModel(),
+) {
+  val navController = rememberNavController()
+  val postActions = rememberPostActions(urlLauncher, navController, viewModel)
+  val listState = rememberLazyListState()
+  Scaffold(modifier = modifier) { paddingValues ->
+    NavHost(
+      navController = navController,
+      startDestination = Destinations.Search.route,
+      modifier = Modifier.padding(paddingValues),
+    ) {
+      composable(route = Destinations.Search.route) {
+        setWebUri("https://lobste.rs/search")
+        SearchList(
+          items = viewModel.searchResults,
+          listState = listState,
+          isPostSaved = viewModel::isPostSaved,
+          postActions = postActions,
+          searchQuery = viewModel.searchQuery,
+          setSearchQuery = { query -> viewModel.searchQuery = query },
+        )
+      }
+      composable(
+        route = Destinations.Comments.route,
+        arguments = listOf(navArgument("postId") { type = NavType.StringType }),
+      ) { backStackEntry ->
+        val postId =
+          requireNotNull(backStackEntry.arguments?.getString("postId")) {
+            "Navigating to ${Destinations.Comments.route} without necessary 'postId' argument"
+          }
+        setWebUri("https://lobste.rs/s/$postId")
+        CommentsPage(
+          postId = postId,
+          postActions = postActions,
+          htmlConverter = htmlConverter,
+          getSeenComments = viewModel::getSeenComments,
+          markSeenComments = viewModel::markSeenComments,
+        )
+      }
+    }
+  }
+}