common: make UrlLauncher use expect/actual

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

app/src/main/java/dev/msfjarvis/lobsters/injection/UrlLauncherModule.kt

@@ -7,13 +7,12 @@ import dagger.hilt.InstallIn
 import dagger.hilt.android.components.ActivityComponent
 import dagger.hilt.android.qualifiers.ActivityContext
 import dev.msfjarvis.lobsters.ui.urllauncher.UrlLauncher
-import dev.msfjarvis.lobsters.ui.urllauncher.AndroidUrlLauncherImpl
 
 @Module
 @InstallIn(ActivityComponent::class)
 object UrlLauncherModule {
   @Provides
   fun provideUrlLauncher(@ActivityContext context: Context): UrlLauncher {
-    return AndroidUrlLauncherImpl(context)
+    return UrlLauncher(context)
   }
 }

common/src/androidMain/kotlin/dev/msfjarvis/lobsters/ui/urllauncher/UrlLauncher.kt

@@ -3,10 +3,9 @@ package dev.msfjarvis.lobsters.ui.urllauncher
 import android.content.Context
 import android.net.Uri
 import androidx.browser.customtabs.CustomTabsIntent
-import dev.msfjarvis.lobsters.ui.urllauncher.UrlLauncher
 
-class AndroidUrlLauncherImpl(private val context: Context) : UrlLauncher {
+actual class UrlLauncher(private val context: Context) {
-  override fun launch(url: String) {
+  actual fun launch(url: String) {
     val customTabsIntent = CustomTabsIntent.Builder()
       .setShareState(CustomTabsIntent.SHARE_STATE_ON)
       .setShowTitle(true)

common/src/commonMain/kotlin/dev/msfjarvis/lobsters/ui/urllauncher/UrlLauncher.kt

@@ -1,5 +1,5 @@
 package dev.msfjarvis.lobsters.ui.urllauncher
 
-fun interface UrlLauncher {
+expect class UrlLauncher {
   fun launch(url: String)
 }

common/src/jvmMain/kotlin/dev/msfjarvis/lobsters/ui/urllauncher/UrlLauncher.kt

@@ -3,8 +3,8 @@ package dev.msfjarvis.lobsters.ui.urllauncher
 import java.awt.Desktop
 import java.net.URI
 
-class JVMUrlLauncherImpl() : UrlLauncher {
+actual class UrlLauncher {
-  override fun launch(url: String) {
+  actual fun launch(url: String) {
     val desktop = Desktop.getDesktop()
 
     if (Desktop.isDesktopSupported() && desktop.isSupported(Desktop.Action.BROWSE)) {

desktop/src/main/kotlin/dev/msfjarvis/lobsters/ui/Main.kt

@@ -11,6 +11,7 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.rememberScrollbarAdapter
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.Text
+import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
@@ -21,6 +22,8 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import dev.msfjarvis.lobsters.data.ApiRepository
 import dev.msfjarvis.lobsters.model.LobstersPost
+import dev.msfjarvis.lobsters.ui.urllauncher.LocalUrlLauncher
+import dev.msfjarvis.lobsters.ui.urllauncher.UrlLauncher
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -29,6 +32,7 @@ val repository = ApiRepository()
 
 @OptIn(ExperimentalStdlibApi::class)
 fun main() = Window(title = "Claw for lobste.rs") {
+  val urlLauncher = UrlLauncher()
   val coroutineScope = rememberCoroutineScope()
   var items by remember { mutableStateOf(emptyList<SavedPost>()) }
   coroutineScope.launch {
@@ -49,6 +53,7 @@ fun main() = Window(title = "Claw for lobste.rs") {
         if (items.isEmpty()) {
           Text("Loading...")
         } else {
+          CompositionLocalProvider(LocalUrlLauncher provides urlLauncher) {
             Column {
               items.forEach {
                 LobstersItem(it)
@@ -56,6 +61,7 @@ fun main() = Window(title = "Claw for lobste.rs") {
             }
           }
         }
+      }
       VerticalScrollbar(
         modifier = Modifier.align(Alignment.CenterEnd).fillMaxHeight(),
         adapter = rememberScrollbarAdapter(stateVertical),