new: extract WebView feature module

feature/webview/build.gradle.kts

@@ -0,0 +1,50 @@
+plugins {
+    id("gwenedeg.kmp.library")
+    id("gwenedeg.compose")
+    alias(libs.plugins.kotlinSerialization)
+}
+
+kotlin {
+    androidLibrary {
+        namespace = "bzh.ajaury.chombev.webview"
+    }
+
+    sourceSets {
+        androidMain.dependencies {
+            implementation(libs.compose.uiToolingPreview)
+            implementation(libs.androidx.webkit)
+        }
+        commonMain.dependencies {
+            // Core modules
+            implementation(projects.core.logging)
+
+            // Reads the bundled offline page snapshots and web strings
+            implementation(projects.data.resources)
+
+            // Serialization: WebPage is carried in the serializable navigation back stack
+            implementation(libs.kotlinx.serializationJson)
+
+            // UI - Compose
+            implementation(libs.compose.runtime)
+            implementation(libs.compose.foundation)
+            implementation(libs.compose.material3)
+            implementation(libs.compose.ui)
+            implementation(libs.compose.uiToolingPreview)
+            implementation(libs.compose.components.resources)
+
+            // Lifecycle
+            implementation(libs.lifecycle.viewmodelCompose)
+            implementation(libs.lifecycle.runtimeCompose)
+
+            // DI
+            implementation(project.dependencies.platform(libs.koin.bom))
+            implementation(libs.koin.core)
+            implementation(libs.koin.core.viewmodel)
+            implementation(libs.koin.compose.viewmodel)
+        }
+    }
+}
+
+dependencies {
+    androidRuntimeClasspath(libs.compose.uiTooling)
+}

feature/webview/src/commonMain/kotlin/bzh/ajaury/chombev/web/di/WebviewModule.kt

@@ -0,0 +1,10 @@
+package bzh.ajaury.chombev.web.di
+
+import bzh.ajaury.chombev.web.ui.viewmodel.WebViewModel
+import org.koin.core.module.Module
+import org.koin.core.module.dsl.viewModelOf
+import org.koin.dsl.module
+
+val webviewModule: Module = module {
+    viewModelOf(::WebViewModel)
+}

feature/webview/src/commonMain/kotlin/bzh/ajaury/chombev/web/model/WebPage.kt

@@ -0,0 +1,15 @@
+package bzh.ajaury.chombev.web.model
+
+import kotlinx.serialization.Serializable
+
+/**
+ * Web page with a distant and local fallback.
+ *
+ * [offlineAsset] is the resource path of a bundled HTML snapshot shown when the online [url] cannot
+ * be reached, so the page still has content offline.
+ */
+@Serializable
+data class WebPage(
+    val url: String,
+    val offlineAsset: String,
+)

feature/webview/src/commonMain/kotlin/bzh/ajaury/chombev/web/ui/WebViewLoader.kt

@@ -9,7 +9,6 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
-import bzh.ajaury.chombev.theme.ChomBevTheme
 
 /**
  * Full-surface loading overlay shown on top of the embedded web view while a page is loading. The
@@ -29,7 +28,7 @@ internal fun WebViewLoader(modifier: Modifier = Modifier) {
 @Preview
 @Composable
 private fun WebViewLoaderPreview() {
-    ChomBevTheme {
+    MaterialTheme {
         WebViewLoader(modifier = Modifier.fillMaxSize())
     }
 }

feature/webview/src/commonMain/kotlin/bzh/ajaury/chombev/web/ui/WebViewScreen.kt

@@ -12,7 +12,7 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import bzh.ajaury.chombev.navigation.WebPage
+import bzh.ajaury.chombev.web.model.WebPage
 import bzh.ajaury.chombev.web.ui.viewmodel.WebUiState
 import bzh.ajaury.chombev.web.ui.viewmodel.WebViewModel
 import org.koin.compose.viewmodel.koinViewModel
@@ -27,7 +27,7 @@ fun WebViewScreen(
     page: WebPage,
     contentPadding: PaddingValues,
     darkTheme: Boolean = isSystemInDarkTheme(),
-    viewModel: WebViewModel = koinViewModel(key = page.name) { parametersOf(page) },
+    viewModel: WebViewModel = koinViewModel(key = page.url) { parametersOf(page) },
 ) {
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
 

feature/webview/src/commonMain/kotlin/bzh/ajaury/chombev/web/ui/WebViewUnavailable.kt

@@ -17,7 +17,6 @@ import androidx.compose.ui.unit.dp
 import bzh.ajaury.chombev.resources.generated.resources.Res
 import bzh.ajaury.chombev.resources.generated.resources.web_open_in_browser
 import bzh.ajaury.chombev.resources.generated.resources.web_unavailable_message
-import bzh.ajaury.chombev.theme.ChomBevTheme
 import org.jetbrains.compose.resources.stringResource
 
 /**
@@ -52,7 +51,7 @@ internal fun WebViewUnavailable(
 @Preview
 @Composable
 private fun WebViewUnavailablePreview() {
-    ChomBevTheme {
+    MaterialTheme {
         WebViewUnavailable(url = "https://ksk.bzh")
     }
 }

feature/webview/src/commonMain/kotlin/bzh/ajaury/chombev/web/ui/viewmodel/WebViewModel.kt

@@ -3,8 +3,8 @@ package bzh.ajaury.chombev.web.ui.viewmodel
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import bzh.ajaury.chombev.core.logging.domain.Logger
-import bzh.ajaury.chombev.navigation.WebPage
 import bzh.ajaury.chombev.resources.domain.ResourceReader
+import bzh.ajaury.chombev.web.model.WebPage
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow

feature/webview/src/iosMain/kotlin/bzh/ajaury/chombev/web/ui/PlatformWebView.ios.kt

@@ -6,6 +6,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.interop.UIKitView
 import kotlinx.cinterop.ExperimentalForeignApi
 import kotlinx.cinterop.ObjCSignatureOverride
+import kotlinx.cinterop.readValue
 import platform.CoreGraphics.CGRectZero
 import platform.Foundation.NSError
 import platform.Foundation.NSURL
@@ -41,7 +42,8 @@ actual fun PlatformWebView(
                 frame = CGRectZero.readValue(),
                 configuration = WKWebViewConfiguration(),
             ).apply {
-                navigationDelegate = navigationDelegate
+                // Qualify with `this` so it targets the web view's property, not the local val above.
+                this.navigationDelegate = navigationDelegate
                 setOverrideUserInterfaceStyle(darkTheme.toInterfaceStyle())
                 NSURL.URLWithString(url)?.let { nsUrl ->
                     loadRequest(NSURLRequest(uRL = nsUrl))
@@ -71,6 +73,10 @@ private class WebViewNavigationDelegate :
 
     private var showingOffline = false
 
+    // The four delegate callbacks below collapse to two Kotlin signatures — (WKWebView, WKNavigation?)
+    // and (WKWebView, WKNavigation?, NSError) — so every colliding override is marked
+    // @ObjCSignatureOverride.
+    @ObjCSignatureOverride
     override fun webView(
         webView: WKWebView,
         didStartProvisionalNavigation: WKNavigation?,
@@ -78,7 +84,6 @@ private class WebViewNavigationDelegate :
         onLoadingStateChange(true)
     }
 
-    // Shares the (WKWebView, WKNavigation?) Kotlin signature with didStartProvisionalNavigation above.
     @ObjCSignatureOverride
     override fun webView(
         webView: WKWebView,
@@ -87,6 +92,7 @@ private class WebViewNavigationDelegate :
         onLoadingStateChange(false)
     }
 
+    @ObjCSignatureOverride
     override fun webView(
         webView: WKWebView,
         didFailNavigation: WKNavigation?,
@@ -95,7 +101,6 @@ private class WebViewNavigationDelegate :
         handleFailure(webView)
     }
 
-    // Shares the (WKWebView, WKNavigation?, NSError) Kotlin signature with didFailNavigation above.
     @ObjCSignatureOverride
     override fun webView(
         webView: WKWebView,

settings.gradle.kts

@@ -50,3 +50,6 @@ include(":data:preferences")
 include(":data:records")
 include(":data:resources")
 include(":data:subtitle")
+
+// Feature modules
+include(":feature:webview")

shared/build.gradle.kts

@@ -30,7 +30,6 @@ kotlin {
     sourceSets {
         androidMain.dependencies {
             implementation(libs.compose.uiToolingPreview)
-            implementation(libs.androidx.webkit)
         }
         commonMain.dependencies {
             // Core modules
@@ -46,6 +45,9 @@ kotlin {
             implementation(projects.data.resources)
             implementation(projects.data.subtitle)
 
+            // Feature modules
+            implementation(projects.feature.webview)
+
             implementation(libs.compose.runtime)
             implementation(libs.compose.foundation)
             implementation(libs.compose.material3)

shared/src/commonMain/kotlin/bzh/ajaury/chombev/App.kt

@@ -16,12 +16,13 @@ import bzh.ajaury.chombev.di.sharedModule
 import bzh.ajaury.chombev.navigation.MainBottomBar
 import bzh.ajaury.chombev.navigation.MainTopBar
 import bzh.ajaury.chombev.navigation.Route
-import bzh.ajaury.chombev.navigation.WebPage
+import bzh.ajaury.chombev.navigation.WebPages
 import bzh.ajaury.chombev.player.di.audioPlayerModule
 import bzh.ajaury.chombev.player.ui.PlayerScreen
 import bzh.ajaury.chombev.records.ui.RecordsScreen
 import bzh.ajaury.chombev.subtitle.di.subtitleModule
 import bzh.ajaury.chombev.theme.ChomBevTheme
+import bzh.ajaury.chombev.web.model.WebPage
 import bzh.ajaury.chombev.web.ui.WebViewScreen
 import org.koin.compose.KoinApplication
 import org.koin.dsl.koinConfiguration
@@ -81,8 +82,8 @@ fun App() {
                         MainBottomBar(
                             selectedPage = selectedPage,
                             onRecordsClick = { selectMainTab(null) },
-                            onDeepenClick = { selectMainTab(WebPage.DEEPEN) },
-                            onAboutClick = { selectMainTab(WebPage.ABOUT) },
+                            onDeepenClick = { selectMainTab(WebPages.DEEPEN) },
+                            onAboutClick = { selectMainTab(WebPages.ABOUT) },
                         )
                     }
                 },

shared/src/commonMain/kotlin/bzh/ajaury/chombev/di/Modules.kt

@@ -7,7 +7,7 @@ import bzh.ajaury.chombev.preferences.di.preferencesModule
 import bzh.ajaury.chombev.records.di.recordsModule
 import bzh.ajaury.chombev.records.ui.viewmodel.RecordsViewModel
 import bzh.ajaury.chombev.resources.di.resourcesModule
-import bzh.ajaury.chombev.web.ui.viewmodel.WebViewModel
+import bzh.ajaury.chombev.web.di.webviewModule
 import org.koin.core.module.dsl.viewModelOf
 import org.koin.dsl.module
 
@@ -17,7 +17,7 @@ val sharedModule = module {
     includes(preferencesModule)
     includes(recordsModule)
     includes(resourcesModule)
+    includes(webviewModule)
     viewModelOf(::RecordsViewModel)
     viewModelOf(::PlayerViewModel)
-    viewModelOf(::WebViewModel)
 }

shared/src/commonMain/kotlin/bzh/ajaury/chombev/navigation/MainBottomBar.kt

@@ -16,6 +16,7 @@ import bzh.ajaury.chombev.resources.generated.resources.nav_about
 import bzh.ajaury.chombev.resources.generated.resources.nav_deepen
 import bzh.ajaury.chombev.resources.generated.resources.nav_records
 import bzh.ajaury.chombev.theme.ChomBevTheme
+import bzh.ajaury.chombev.web.model.WebPage
 import org.jetbrains.compose.resources.stringResource
 
 /**
@@ -40,13 +41,13 @@ fun MainBottomBar(
             label = { Text(text = stringResource(Res.string.nav_records)) },
         )
         NavigationBarItem(
-            selected = selectedPage == WebPage.DEEPEN,
+            selected = selectedPage == WebPages.DEEPEN,
             onClick = onDeepenClick,
             icon = { Icon(imageVector = Icons.Filled.School, contentDescription = null) },
             label = { Text(text = stringResource(Res.string.nav_deepen)) },
         )
         NavigationBarItem(
-            selected = selectedPage == WebPage.ABOUT,
+            selected = selectedPage == WebPages.ABOUT,
             onClick = onAboutClick,
             icon = { Icon(imageVector = Icons.Outlined.Info, contentDescription = null) },
             label = { Text(text = stringResource(Res.string.nav_about)) },

shared/src/commonMain/kotlin/bzh/ajaury/chombev/navigation/Route.kt

@@ -1,6 +1,7 @@
 package bzh.ajaury.chombev.navigation
 
 import androidx.navigation3.runtime.NavKey
+import bzh.ajaury.chombev.web.model.WebPage
 import kotlinx.serialization.Serializable
 
 @Serializable

shared/src/commonMain/kotlin/bzh/ajaury/chombev/navigation/WebPages.kt

@@ -1,24 +1,17 @@
 package bzh.ajaury.chombev.navigation
 
-import kotlinx.serialization.Serializable
+import bzh.ajaury.chombev.web.model.WebPage
 
 /**
  * Web destinations reachable from the main bottom navigation bar and shown inside the app.
- *
- * [offlineAsset] is the resource path of a bundled HTML snapshot shown when the online [url] cannot
- * be reached, so the page still has content offline.
  */
-@Serializable
-enum class WebPage(
-    val url: String,
-    val offlineAsset: String,
-) {
-    DEEPEN(
+object WebPages {
+    val DEEPEN = WebPage(
         url = "https://ksk.bzh/fr/chom-bev-approfondir/",
         offlineAsset = "files/offline_deepen.html",
-    ),
-    ABOUT(
+    )
+    val ABOUT = WebPage(
         url = "https://ksk.bzh/fr/chom-bev-a-propos/",
         offlineAsset = "files/offline_about.html",
-    ),
+    )
 }

shared/src/jvmTest/kotlin/bzh/ajaury/chombev/di/KoinModulesTest.kt

@@ -2,6 +2,7 @@ package bzh.ajaury.chombev.di
 
 import bzh.ajaury.chombev.appModule
 import bzh.ajaury.chombev.player.di.audioPlayerModule
+import bzh.ajaury.chombev.web.model.WebPage
 import org.koin.core.annotation.KoinExperimentalAPI
 import org.koin.test.verify.verify
 import kotlin.test.Test
@@ -18,6 +19,10 @@ class KoinModulesTest {
     @OptIn(KoinExperimentalAPI::class)
     @Test
     fun koinConfigurationIsValid() {
-        appModule.verify()
+        // WebPage is supplied at call time via parametersOf (WebViewModel), so declare it as a known
+        // extra type rather than a resolvable definition.
+        appModule.verify(
+            extraTypes = listOf(WebPage::class),
+        )
     }
 }