Create HTML based format for kotlin-website

3 files changed, 200 insertions, 1 deletions

diff --git a/core/src/main/kotlin/Formats/KotlinWebsiteHtmlFormatService.kt b/core/src/main/kotlin/Formats/KotlinWebsiteHtmlFormatService.kt
new file mode 100644
index 00000000..d2962911
--- /dev/null
+++ b/core/src/main/kotlin/Formats/KotlinWebsiteHtmlFormatService.kt
@@ -0,0 +1,193 @@
+package org.jetbrains.dokka
+
+import com.google.inject.Inject
+import com.google.inject.name.Named
+import org.jetbrains.dokka.Utilities.impliedPlatformsName
+import org.jetbrains.kotlin.utils.addToStdlib.ifNotEmpty
+import java.nio.file.Path
+
+
+private object EmptyHtmlTemplateServie : HtmlTemplateService {
+    override fun appendFooter(to: StringBuilder) {
+
+    }
+
+    override fun appendHeader(to: StringBuilder, title: String?, basePath: Path) {
+
+    }
+}
+
+
+open class KotlinWebsiteHtmlOutputBuilder(to: StringBuilder,
+                                          location: Location,
+                                          locationService: LocationService,
+                                          languageService: LanguageService,
+                                          extension: String,
+                                          impliedPlatforms: List<String>)
+    : HtmlOutputBuilder(to, location, locationService, languageService, extension, impliedPlatforms, EmptyHtmlTemplateServie) {
+    private var needHardLineBreaks = false
+    private var insideDiv = 0
+
+    override fun appendLine() {
+
+    }
+
+    override fun appendBreadcrumbs(path: Iterable<FormatLink>) {
+        if (path.count() > 1) {
+            to.append("<div class='api-docs-breadcrumbs'>")
+            super.appendBreadcrumbs(path)
+            to.append("</div>")
+        }
+    }
+
+    override fun appendCode(body: () -> Unit) = wrapIfNotEmpty("<code>", "</code>", body)
+
+    override fun appendStrikethrough(body: () -> Unit) = wrapInTag("s", body)
+
+    protected fun div(to: StringBuilder, cssClass: String, otherAttributes: String = "", block: () -> Unit) {
+        to.append("<div class=\"$cssClass\"$otherAttributes")
+        to.append(">")
+        insideDiv++
+        block()
+        insideDiv--
+        to.append("</div>\n")
+    }
+
+    override fun appendAsSignature(node: ContentNode, block: () -> Unit) {
+        val contentLength = node.textLength
+        if (contentLength == 0) return
+        div(to, "signature") {
+            needHardLineBreaks = contentLength >= 62
+            try {
+                block()
+            } finally {
+                needHardLineBreaks = false
+            }
+        }
+    }
+
+    override fun appendAsOverloadGroup(to: StringBuilder, platforms: Set<String>, block: () -> Unit) {
+        div(to, "overload-group", calculateDataAttributes(platforms)) {
+            ensureParagraph()
+            block()
+            ensureParagraph()
+        }
+    }
+
+    override fun appendLink(href: String, body: () -> Unit) = wrap("<a href=\"$href\">", "</a>", body)
+
+    override fun appendHeader(level: Int, body: () -> Unit) {
+        if (insideDiv > 0) {
+            wrapInTag("p", body, newlineAfterClose = true)
+        } else {
+            super.appendHeader(level, body)
+        }
+    }
+
+    override fun appendTable(vararg columns: String, body: () -> Unit) {
+        to.appendln("<table class=\"api-docs-table\">")
+        body()
+        to.appendln("</table>")
+    }
+
+    override fun appendTableBody(body: () -> Unit) {
+        to.appendln("<tbody>")
+        body()
+        to.appendln("</tbody>")
+    }
+
+    override fun appendTableRow(body: () -> Unit) {
+        to.appendln("<tr>")
+        body()
+        to.appendln("</tr>")
+    }
+
+    override fun appendTableCell(body: () -> Unit) {
+        to.appendln("<td>")
+        body()
+        to.appendln("\n</td>")
+    }
+
+    override fun appendSymbol(text: String) {
+        to.append("<span class=\"symbol\">${text.htmlEscape()}</span>")
+    }
+
+    override fun appendKeyword(text: String) {
+        to.append("<span class=\"keyword\">${text.htmlEscape()}</span>")
+    }
+
+    override fun appendIdentifier(text: String, kind: IdentifierKind, signature: String?) {
+        val id = signature?.let { " id=\"$it\"" }.orEmpty()
+        to.append("<span class=\"${identifierClassName(kind)}\"$id>${text.htmlEscape()}</span>")
+    }
+
+    override fun appendSoftLineBreak() {
+        if (needHardLineBreaks)
+            to.append("<br/>")
+    }
+
+    override fun appendIndentedSoftLineBreak() {
+        if (needHardLineBreaks) {
+            to.append("<br/>&nbsp;&nbsp;&nbsp;&nbsp;")
+        }
+    }
+
+    private fun identifierClassName(kind: IdentifierKind) = when (kind) {
+        IdentifierKind.ParameterName -> "parameterName"
+        IdentifierKind.SummarizedTypeName -> "summarizedTypeName"
+        else -> "identifier"
+    }
+
+    fun calculateDataAttributes(platforms: Set<String>): String {
+        fun String.isKotlinVersion() = this.startsWith("Kotlin")
+        fun String.isJREVersion() = this.startsWith("JRE")
+        val kotlinVersion = platforms.singleOrNull(String::isKotlinVersion)
+        val jreVersion = platforms.singleOrNull(String::isJREVersion)
+        val targetPlatforms = platforms.filterNot { it.isKotlinVersion() || it.isJREVersion() }
+
+        val kotlinVersionAttr = kotlinVersion?.let { " data-kotlin-version=\"$it\"" } ?: ""
+        val jreVersionAttr = jreVersion?.let { " data-jre-version=\"$it\"" } ?: ""
+        val platformsAttr = targetPlatforms.ifNotEmpty { " data-platform=\"${targetPlatforms.joinToString()}\"" } ?: ""
+        return "$platformsAttr$kotlinVersionAttr$jreVersionAttr"
+    }
+
+    override fun appendIndexRow(platforms: Set<String>, block: () -> Unit) {
+        if (platforms.isNotEmpty())
+            wrap("<tr${calculateDataAttributes(platforms)}>", "</tr>", block)
+        else
+            appendTableRow(block)
+    }
+
+    override fun appendPlatforms(platforms: Set<String>) {
+
+    }
+
+    override fun appendBreadcrumbSeparator() {
+        to.append(" / ")
+    }
+
+    override fun appendSampleBlockCode(language: String, imports: () -> Unit, body: () -> Unit) {
+        div(to, "sample") {
+            appendBlockCode(language) {
+                imports()
+                wrap("\n\nfun main(args: Array<String>) {", "}") {
+                    wrap("\n//sampleStart\n", "\n//sampleEnd\n", body)
+                }
+            }
+        }
+    }
+}
+
+class KotlinWebsiteHtmlFormatService @Inject constructor(locationService: LocationService,
+                                                         signatureGenerator: LanguageService,
+                                                         @Named(impliedPlatformsName) impliedPlatforms: List<String>)
+    : HtmlFormatService(locationService, signatureGenerator, EmptyHtmlTemplateServie, impliedPlatforms) {
+
+    override fun enumerateSupportFiles(callback: (String, String) -> Unit) {
+
+    }
+
+    override fun createOutputBuilder(to: StringBuilder, location: Location) =
+            KotlinWebsiteHtmlOutputBuilder(to, location, locationService, languageService, extension, impliedPlatforms)
+}
+
diff --git a/core/src/main/kotlin/Formats/StandardFormats.kt b/core/src/main/kotlin/Formats/StandardFormats.kt
index 6b077444..c67386af 100644
--- a/core/src/main/kotlin/Formats/StandardFormats.kt
+++ b/core/src/main/kotlin/Formats/StandardFormats.kt
@@ -40,6 +40,12 @@ class KotlinWebsiteFormatRunnableSamplesDescriptor : KotlinFormatDescriptorBase(
     override val outlineServiceClass = YamlOutlineService::class
 }
 
+class KotlinWebsiteHtmlFormatDescriptor : KotlinFormatDescriptorBase() {
+    override val formatServiceClass = KotlinWebsiteHtmlFormatService::class
+    override val sampleProcessingService = KotlinWebsiteSampleProcessingService::class
+    override val outlineServiceClass = YamlOutlineService::class
+}
+
 class JekyllFormatDescriptor : KotlinFormatDescriptorBase() {
     override val formatServiceClass = JekyllFormatService::class
 }
diff --git a/core/src/main/kotlin/Formats/StructuredFormatService.kt b/core/src/main/kotlin/Formats/StructuredFormatService.kt
index 84f91d9c..743a6ac8 100644
--- a/core/src/main/kotlin/Formats/StructuredFormatService.kt
+++ b/core/src/main/kotlin/Formats/StructuredFormatService.kt
@@ -253,7 +253,7 @@ abstract class StructuredOutputBuilder(val to: StringBuilder,
             }
 
             for ((path, nodes) in breakdownByLocation) {
-                if (!noHeader) {
+                if (!noHeader && path.isNotEmpty()) {
                     appendBreadcrumbs(path)
                     appendLine()
                     appendLine()