Migrate CategoriesFragment from DataBinding/RecyclerView to Compose

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: frett

ui/article-renderer/build.gradle.kts

@@ -13,7 +13,6 @@ android {
 
     buildFeatures {
         dataBinding = true
-        viewBinding = true
     }
 }
 
@@ -25,20 +24,16 @@ dependencies {
     implementation(libs.androidx.compose.material3)
     implementation(libs.androidx.fragment.ktx)
     implementation(libs.androidx.lifecycle.livedata.ktx)
-    implementation(libs.androidx.constraintlayout)
-    implementation(libs.androidx.recyclerview)
 
     implementation(libs.gtoSupport.androidx.fragment)
     implementation(libs.gtoSupport.androidx.lifecycle)
-    implementation(libs.gtoSupport.androidx.recyclerview)
     implementation(libs.gtoSupport.core)
     implementation(libs.gtoSupport.kotlin.coroutines)
-    implementation(libs.gtoSupport.picasso)
     implementation(libs.gtoSupport.sync)
-    implementation(libs.gtoSupport.util)
 
     implementation(libs.colormath.jetpack.compose)
     implementation(libs.dagger)
+    implementation(libs.godtoolsShared.renderer)
     implementation(libs.hilt)
     implementation(libs.splitties.fragmentargs)
 

ui/article-renderer/src/main/kotlin/org/cru/godtools/article/ui/categories/CategoriesAdapter.kt

@@ -3,56 +3,108 @@ package org.cru.godtools.article.ui.categories
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import androidx.lifecycle.map
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.ComposeView
+import androidx.compose.ui.platform.ViewCompositionStrategy
+import androidx.compose.ui.unit.dp
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
 import dagger.hilt.android.AndroidEntryPoint
 import java.util.Locale
 import javax.inject.Inject
+import javax.inject.Named
+import okio.FileSystem
 import org.ccci.gto.android.common.androidx.fragment.app.findListener
-import org.ccci.gto.android.common.androidx.recyclerview.decorator.MarginItemDecoration
+import org.cru.godtools.base.tool.BaseToolRendererModule.Companion.TOOL_RESOURCE_FILE_SYSTEM
 import org.cru.godtools.base.tool.analytics.model.SCREEN_CATEGORIES
 import org.cru.godtools.base.tool.analytics.model.ToolAnalyticsScreenEvent
-import org.cru.godtools.base.tool.fragment.BaseToolFragment
+import org.cru.godtools.base.tool.viewmodel.LatestPublishedManifestDataModel
+import org.cru.godtools.base.ui.theme.GodToolsTheme
+import org.cru.godtools.shared.renderer.article.RenderArticleCategory
+import org.cru.godtools.shared.renderer.util.ProvideRendererServices
 import org.cru.godtools.shared.tool.parser.model.Category
-import org.cru.godtools.tool.article.R
-import org.cru.godtools.tool.article.databinding.ArticleCategoriesFragmentBinding
 import org.greenrobot.eventbus.EventBus
+import splitties.fragmentargs.arg
 
 @AndroidEntryPoint
-class CategoriesFragment :
-    BaseToolFragment<ArticleCategoriesFragmentBinding>,
-    CategorySelectedListener {
-    constructor() : super(R.layout.article_categories_fragment)
-    constructor(code: String, locale: Locale) : super(R.layout.article_categories_fragment, code, locale)
+class CategoriesFragment() : Fragment() {
+    constructor(code: String, locale: Locale) : this() {
+        tool = code
+        this.locale = locale
+    }
+
+    private var tool by arg<String>()
+    private var locale by arg<Locale>()
 
     @Inject
     internal lateinit var eventBus: EventBus
 
+    @Inject
+    @Named(TOOL_RESOURCE_FILE_SYSTEM)
+    internal lateinit var resourceFileSystem: FileSystem
+
     // region Lifecycle
-    override fun onCreateBinding(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?) =
-        ArticleCategoriesFragmentBinding.inflate(inflater, container, false).apply { setupCategoriesView() }
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setupDataModel()
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?) =
+        ComposeView(requireContext()).apply {
+            setViewCompositionStrategy(ViewCompositionStrategy.DisposeOnViewTreeLifecycleDestroyed)
+            setContent {
+                GodToolsTheme {
+                    ProvideRendererServices(resourceFileSystem) {
+                        CategoriesContent()
+                    }
+                }
+            }
+        }
 
     override fun onResume() {
         super.onResume()
         eventBus.post(ToolAnalyticsScreenEvent(SCREEN_CATEGORIES, tool, locale))
     }
 
-    override fun onCategorySelected(category: Category?) {
+    private fun onCategorySelected(category: Category?) {
         findListener<CategorySelectedListener>()?.onCategorySelected(category)
     }
     // endregion Lifecycle
 
-    // region Categories View
-    private fun ArticleCategoriesFragmentBinding.setupCategoriesView() {
-        categories.apply {
-            setHasFixedSize(true)
-            addItemDecoration(
-                MarginItemDecoration(bottomMargin = resources.getDimensionPixelSize(R.dimen.categories_list_gap))
-            )
-            adapter = CategoriesAdapter(viewLifecycleOwner).apply {
-                callbacks.set(this@CategoriesFragment)
-                toolDataModel.manifest.map { it?.categories }.observe(viewLifecycleOwner, this)
+    // region Data Model
+    private val toolDataModel: LatestPublishedManifestDataModel by viewModels()
+
+    private fun setupDataModel() {
+        toolDataModel.toolCode.value = tool
+        toolDataModel.locale.value = locale
+    }
+    // endregion Data Model
+
+    @Composable
+    private fun CategoriesContent(modifier: Modifier = Modifier) {
+        val manifest by toolDataModel.manifestFlow.collectAsState(null)
+        val categories by remember { derivedStateOf { manifest?.categories.orEmpty() } }
+
+        LazyColumn(
+            verticalArrangement = Arrangement.spacedBy(1.dp),
+            modifier = modifier.fillMaxSize(),
+        ) {
+            items(categories, key = { it.id ?: it }) { category ->
+                RenderArticleCategory(
+                    category,
+                    modifier = Modifier.clickable { onCategorySelected(category) }
+                )
             }
         }
     }
-    // endregion Categories View
 }