1 files changed, 26 insertions, 9 deletions
diff --git a/plugins/base/src/main/kotlin/renderers/html/NavigationDataProvider.kt b/plugins/base/src/main/kotlin/renderers/html/NavigationDataProvider.kt
index 958488ef..ecce70e8 100644
--- a/plugins/base/src/main/kotlin/renderers/html/NavigationDataProvider.kt
+++ b/plugins/base/src/main/kotlin/renderers/html/NavigationDataProvider.kt
@@ -1,6 +1,8 @@
 package org.jetbrains.dokka.base.renderers.html
 
 import org.jetbrains.dokka.base.renderers.sourceSets
+import org.jetbrains.dokka.base.signatures.KotlinSignatureUtils.annotations
+import org.jetbrains.dokka.base.transformers.documentables.isDeprecated
 import org.jetbrains.dokka.base.transformers.documentables.isException
 import org.jetbrains.dokka.base.translators.documentables.DocumentableLanguage
 import org.jetbrains.dokka.base.translators.documentables.documentableLanguage
@@ -17,6 +19,7 @@ abstract class NavigationDataProvider {
             dri = page.dri.first(),
             sourceSets = page.sourceSets(),
             icon = chooseNavigationIcon(page),
+            styles = chooseStyles(page),
             children = page.navigableChildren()
         )
 
@@ -31,8 +34,8 @@ abstract class NavigationDataProvider {
             name
         }
 
-    private fun chooseNavigationIcon(contentPage: ContentPage): NavigationNodeIcon? {
-        return if (contentPage is WithDocumentables) {
+    private fun chooseNavigationIcon(contentPage: ContentPage): NavigationNodeIcon? =
+        if (contentPage is WithDocumentables) {
             val documentable = contentPage.documentables.firstOrNull()
             val isJava = documentable?.hasAnyJavaSources() ?: false
 
@@ -61,27 +64,41 @@ abstract class NavigationDataProvider {
         } else {
             null
         }
-    }
 
     private fun Documentable.hasAnyJavaSources(): Boolean {
         val withSources = this as? WithSources ?: return false
         return this.sourceSets.any { withSources.documentableLanguage(it) == DocumentableLanguage.JAVA }
     }
 
-    private fun DClass.isAbstract(): Boolean {
-        return modifier.values.all { it is KotlinModifier.Abstract || it is JavaModifier.Abstract }
+    private fun DClass.isAbstract() =
+        modifier.values.all { it is KotlinModifier.Abstract || it is JavaModifier.Abstract }
+
+    private fun chooseStyles(page: ContentPage): Set<Style> =
+        if (page.containsOnlyDeprecatedDocumentables()) setOf(TextStyle.Strikethrough) else emptySet()
+
+    private fun ContentPage.containsOnlyDeprecatedDocumentables(): Boolean {
+        if (this !is WithDocumentables) {
+            return false
+        }
+        return this.documentables.isNotEmpty() && this.documentables.all { it.isDeprecatedForAllSourceSets() }
+    }
+
+    private fun Documentable.isDeprecatedForAllSourceSets(): Boolean {
+        val sourceSetAnnotations = this.annotations()
+        return sourceSetAnnotations.isNotEmpty() && sourceSetAnnotations.all { (_, annotations) ->
+            annotations.any { it.isDeprecated() }
+        }
     }
 
-    private fun ContentPage.navigableChildren(): List<NavigationNode> {
-        return if (this is ClasslikePage) {
-            return this.navigableChildren()
+    private fun ContentPage.navigableChildren() =
+        if (this is ClasslikePage) {
+            this.navigableChildren()
         } else {
             children
                 .filterIsInstance<ContentPage>()
                 .map { visit(it) }
                 .sortedBy { it.name.toLowerCase() }
         }
-    }
 
     private fun ClasslikePage.navigableChildren(): List<NavigationNode> {
         // Classlikes should only have other classlikes as navigable children