Add extension for html preprocessors

2 files changed, 27 insertions, 8 deletions

diff --git a/plugins/base/src/main/kotlin/DokkaBase.kt b/plugins/base/src/main/kotlin/DokkaBase.kt
index d236aa01..8934dd7f 100644
--- a/plugins/base/src/main/kotlin/DokkaBase.kt
+++ b/plugins/base/src/main/kotlin/DokkaBase.kt
@@ -3,7 +3,7 @@ package org.jetbrains.dokka.base
 import org.jetbrains.dokka.CoreExtensions
 import org.jetbrains.dokka.base.renderers.FileWriter
 import org.jetbrains.dokka.base.renderers.OutputWriter
-import org.jetbrains.dokka.base.renderers.html.HtmlRenderer
+import org.jetbrains.dokka.base.renderers.html.*
 import org.jetbrains.dokka.base.resolvers.DefaultLocationProviderFactory
 import org.jetbrains.dokka.base.resolvers.LocationProviderFactory
 import org.jetbrains.dokka.base.signatures.KotlinSignatureProvider
@@ -21,6 +21,7 @@ import org.jetbrains.dokka.base.translators.descriptors.DefaultDescriptorToDocum
 import org.jetbrains.dokka.base.translators.documentables.DefaultDocumentableToPageTranslator
 import org.jetbrains.dokka.base.translators.psi.DefaultPsiToDocumentableTranslator
 import org.jetbrains.dokka.plugability.DokkaPlugin
+import org.jetbrains.dokka.transformers.pages.PageTransformer
 
 class DokkaBase : DokkaPlugin() {
     val pageMergerStrategy by extensionPoint<PageMergerStrategy>()
@@ -28,6 +29,7 @@ class DokkaBase : DokkaPlugin() {
     val signatureProvider by extensionPoint<SignatureProvider>()
     val locationProviderFactory by extensionPoint<LocationProviderFactory>()
     val outputWriter by extensionPoint<OutputWriter>()
+    val htmlPreprocessors by extensionPoint<PageTransformer>()
 
     val descriptorToDocumentableTranslator by extending(isFallback = true) {
         CoreExtensions.descriptorToDocumentableTranslator providing ::DefaultDescriptorToDocumentableTranslator
@@ -94,4 +96,24 @@ class DokkaBase : DokkaPlugin() {
     val fileWriter by extending(isFallback = true) {
         outputWriter providing ::FileWriter
     }
+
+    val rootCreator by extending {
+        htmlPreprocessors with RootCreator
+    }
+
+    val navigationPageInstaller by extending {
+        htmlPreprocessors with NavigationPageInstaller order { after(rootCreator) }
+    }
+
+    val searchPageInstaller by extending {
+        htmlPreprocessors with SearchPageInstaller order { after(rootCreator) }
+    }
+
+    val resourceInstaller by extending {
+        htmlPreprocessors with ResourceInstaller order { after(rootCreator) }
+    }
+
+    val styleAndScriptsAppender by extending {
+        htmlPreprocessors with StyleAndScriptsAppender order { after(rootCreator) }
+    }
 }
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt b/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
index 57915134..365405ed 100644
--- a/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
+++ b/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
@@ -2,11 +2,14 @@ package org.jetbrains.dokka.base.renderers.html
 
 import kotlinx.html.*
 import kotlinx.html.stream.createHTML
+import org.jetbrains.dokka.base.DokkaBase
 import org.jetbrains.dokka.base.renderers.DefaultRenderer
 import org.jetbrains.dokka.links.DRI
 import org.jetbrains.dokka.model.DFunction
 import org.jetbrains.dokka.pages.*
 import org.jetbrains.dokka.plugability.DokkaContext
+import org.jetbrains.dokka.plugability.plugin
+import org.jetbrains.dokka.plugability.query
 import java.io.File
 
 open class HtmlRenderer(
@@ -15,13 +18,7 @@ open class HtmlRenderer(
 
     private val pageList = mutableListOf<String>()
 
-    override val preprocessors = listOf(
-        RootCreator,
-        SearchPageInstaller,
-        ResourceInstaller,
-        NavigationPageInstaller,
-        StyleAndScriptsAppender
-    )
+    override val preprocessors = context.plugin<DokkaBase>().query { htmlPreprocessors }
 
     override fun FlowContent.wrapGroup(
         node: ContentGroup,