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Generate code to have an API that provides module level metadata of S…
…howkase elements
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110
...rc/main/java/com/airbnb/android/showkase/processor/writer/ShowkaseModuleMetadataWriter.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package com.airbnb.android.showkase.processor.writer | ||
|
|
||
| import androidx.room.compiler.processing.XFiler | ||
| import androidx.room.compiler.processing.XProcessingEnv | ||
| import androidx.room.compiler.processing.addOriginatingElement | ||
| import androidx.room.compiler.processing.writeTo | ||
| import com.airbnb.android.showkase.processor.writer.ShowkaseBrowserWriter.Companion.SHOWKASE_PROVIDER_CLASS_NAME | ||
| import com.airbnb.android.showkase.processor.writer.ShowkaseBrowserWriter.Companion.initializeColorCodeBlock | ||
| import com.airbnb.android.showkase.processor.writer.ShowkaseBrowserWriter.Companion.initializeComponentCodeBlock | ||
| import com.airbnb.android.showkase.processor.writer.ShowkaseBrowserWriter.Companion.initializeTypographyCodeBlock | ||
| import com.squareup.kotlinpoet.ClassName | ||
| import com.squareup.kotlinpoet.CodeBlock | ||
| import com.squareup.kotlinpoet.FunSpec | ||
| import com.squareup.kotlinpoet.LIST | ||
| import com.squareup.kotlinpoet.ParameterizedTypeName.Companion.parameterizedBy | ||
|
|
||
| object ShowkaseModuleMetadataWriter { | ||
| @Suppress("LongMethod", "LongParameterList") | ||
| internal fun generateModuleLevelShowkaseProvider( | ||
| environment: XProcessingEnv, | ||
| moduleShowkaseBrowserProperties: ShowkaseBrowserProperties, | ||
| ) { | ||
| if (moduleShowkaseBrowserProperties.isEmpty()) return | ||
| val packageName = moduleShowkaseBrowserProperties.getPackageName() | ||
| val showkaseComponentsListClassName = | ||
| "${MODULE_LEVEL_SHOWKASE_PROVIDER_CLASS_PREFIX}_${packageName.normalizePackageName()}" | ||
| val fileBuilder = getFileBuilder(packageName, showkaseComponentsListClassName) | ||
| val componentCodeBlock = initializeComponentCodeBlock( | ||
| moduleShowkaseBrowserProperties.componentsWithoutPreviewParameters, | ||
| moduleShowkaseBrowserProperties.componentsWithPreviewParameters | ||
| ) | ||
| val colorCodeBlock = initializeColorCodeBlock(moduleShowkaseBrowserProperties.colors) | ||
| val typographyCodeBlock = | ||
| initializeTypographyCodeBlock(moduleShowkaseBrowserProperties.typography) | ||
| writeFile( | ||
| environment, | ||
| fileBuilder, | ||
| ShowkaseBrowserWriter.SHOWKASE_PROVIDER_CLASS_NAME, | ||
| showkaseComponentsListClassName, | ||
| moduleShowkaseBrowserProperties, | ||
| getShowkaseProviderInterfaceFunction( | ||
| methodName = ShowkaseBrowserWriter.COMPONENT_INTERFACE_METHOD_NAME, | ||
| returnType = LIST.parameterizedBy(ShowkaseBrowserWriter.SHOWKASE_BROWSER_COMPONENT_CLASS_NAME), | ||
| codeBlock = componentCodeBlock | ||
| ), | ||
| getShowkaseProviderInterfaceFunction( | ||
| methodName = ShowkaseBrowserWriter.COLOR_INTERFACE_METHOD_NAME, | ||
| returnType = LIST.parameterizedBy(ShowkaseBrowserWriter.SHOWKASE_BROWSER_COLOR_CLASS_NAME), | ||
| codeBlock = colorCodeBlock | ||
| ), | ||
| getShowkaseProviderInterfaceFunction( | ||
| methodName = ShowkaseBrowserWriter.TYPOGRAPHY_INTERFACE_METHOD_NAME, | ||
| returnType = LIST.parameterizedBy(ShowkaseBrowserWriter.SHOWKASE_BROWSER_TYPOGRAPHY_CLASS_NAME), | ||
| codeBlock = typographyCodeBlock | ||
| ), | ||
| showkaseRootCodegenAnnotation = null | ||
| ) | ||
| } | ||
|
|
||
| internal fun generateModuleMetadataPublicApi( | ||
| environment: XProcessingEnv, | ||
| moduleShowkaseBrowserProperties: ShowkaseBrowserProperties, | ||
| ) { | ||
| if (moduleShowkaseBrowserProperties.isEmpty()) return | ||
| val packageName = moduleShowkaseBrowserProperties.getPackageName() | ||
| val normalizedPackageName = packageName.normalizePackageName() | ||
| val showkaseComponentsListClassName = | ||
| "${MODULE_LEVEL_SHOWKASE_PROVIDER_CLASS_PREFIX}ExtensionFunctions_${normalizedPackageName}" | ||
| val fileBuilder = getFileBuilder(packageName, showkaseComponentsListClassName) | ||
|
|
||
| fileBuilder | ||
| .addFileComment("This is an auto-generated file. Please do not edit/modify this file.") | ||
| .addFunction( | ||
| FunSpec.builder(MODULE_METADATA_FUNCTION_NAME).apply { | ||
| receiver(ShowkaseExtensionFunctionsWriter.SHOWKASE_OBJECT_CLASS_NAME) | ||
| returns(ShowkaseExtensionFunctionsWriter.SHOWKASE_ELEMENTS_METADATA_CLASS_NAME) | ||
| addKdoc( | ||
| "Helper function that gives you access to Showkase elements that are declared in a given module. " + | ||
| "This contains data about the composables, colors and typography that are meant to be rendered" + | ||
| "inside the Showkase browser. This is different from the Showkase.${ShowkaseExtensionFunctionsWriter.METADATA_FUNCTION_NAME}() " + | ||
| "function, which contains all the Showkase elements in a given ShowkaseRoot graph, whereas this function " + | ||
| "only contains metadata about the module it's generated in. Each module where Showkase is setup " + | ||
| "will have this function generated in it." | ||
| ) | ||
| addCode( | ||
| CodeBlock.Builder() | ||
| .indent() | ||
| .addStatement( | ||
| "return (%T as %T).metadata()", | ||
| ClassName( | ||
| packageName, | ||
| "${MODULE_LEVEL_SHOWKASE_PROVIDER_CLASS_PREFIX}_${normalizedPackageName}" | ||
| ), | ||
| SHOWKASE_PROVIDER_CLASS_NAME | ||
| ) | ||
| .unindent() | ||
| .build() | ||
| ) | ||
| moduleShowkaseBrowserProperties.zip() | ||
| .forEach { addOriginatingElement(it.element) } | ||
| } | ||
| .build() | ||
| ) | ||
| .build() | ||
| .writeTo(environment.filer, mode = XFiler.Mode.Aggregating) | ||
| } | ||
|
|
||
| private const val MODULE_METADATA_FUNCTION_NAME = "getModuleMetadata" | ||
| private const val MODULE_LEVEL_SHOWKASE_PROVIDER_CLASS_PREFIX = "ShowkaseModuleMetadata" | ||
| } |
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