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JsModelValueCompletionContributor.kt
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JsModelValueCompletionContributor.kt
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/*
* Copyright (c) 2010-2022 BSI Business Systems Integration AG.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* BSI Business Systems Integration AG - initial API and implementation
*/
package org.eclipse.scout.sdk.s2i.template.js
import com.intellij.codeInsight.completion.*
import com.intellij.codeInsight.lookup.LookupElement
import com.intellij.codeInsight.lookup.LookupElementBuilder
import com.intellij.lang.ecmascript6.psi.impl.ES6ImportPsiUtil
import com.intellij.lang.javascript.patterns.JSPatterns.jsProperty
import com.intellij.lang.javascript.psi.JSArrayLiteralExpression
import com.intellij.patterns.PlatformPatterns.psiElement
import com.intellij.psi.PsiElement
import com.intellij.psi.PsiManager
import com.intellij.util.ProcessingContext
import org.eclipse.scout.sdk.s2i.model.js.JsModel
import org.eclipse.scout.sdk.s2i.model.js.JsModelProperty
import org.eclipse.scout.sdk.s2i.template.js.JsModelCompletionHelper.PropertyCompletionInfo
import org.eclipse.scout.sdk.s2i.template.js.JsModelCompletionHelper.SELECTED_ELEMENT
import org.eclipse.scout.sdk.s2i.template.js.JsModelCompletionHelper.createLookupElement
import org.eclipse.scout.sdk.s2i.template.js.JsModelCompletionHelper.getPropertyValueInfo
import org.eclipse.scout.sdk.s2i.template.js.JsModelCompletionHelper.propertyElementPattern
class JsModelValueCompletionContributor : CompletionContributor() {
init {
// normal value completion
extend(CompletionType.BASIC, propertyElementPattern(), JsModelValueCompletionProvider())
// value completion when within an array (to add an array element)
extend(CompletionType.BASIC, psiElement().withSuperParent(2, psiElement(JSArrayLiteralExpression::class.java).withParent(jsProperty())), JsModelValueCompletionProvider())
}
private class JsModelValueCompletionProvider : CompletionProvider<CompletionParameters>() {
override fun addCompletions(parameters: CompletionParameters, context: ProcessingContext, result: CompletionResultSet) {
val completionInfo = getPropertyValueInfo(parameters, result) ?: return
// require an objectType to be set or the completion of the object type itself
if (completionInfo.objectType == null && JsModel.OBJECT_TYPE_PROPERTY_NAME != completionInfo.propertyName) return
val elements = getPropertyValueElements(completionInfo)
if (elements.isNotEmpty()) {
result.addAllElements(elements)
result.stopHere()
}
}
private fun getPropertyValueElements(completionInfo: PropertyCompletionInfo): List<LookupElement> {
val jsModel = JsModel().build(completionInfo.module)
val jsProperty = if (JsModel.OBJECT_TYPE_PROPERTY_NAME == completionInfo.propertyName) {
getPropertyValueInfo(completionInfo.property, "")
?.let { jsModel.property(it.objectType, it.propertyName) }
?.takeIf { it.dataType == JsModelProperty.JsPropertyDataType.WIDGET } // only accept widgets filter. for all other types use the default: all known top-level objects
?: jsModel.property(JsModel.WIDGET_CLASS_NAME, JsModel.OBJECT_TYPE_PROPERTY_NAME)
} else {
jsModel.property(completionInfo.objectType, completionInfo.propertyName)
} ?: return emptyList()
return jsModel.valuesForProperty(jsProperty).map {
val lookupElement = createLookupElement(it.displayText, it.element, jsProperty, completionInfo)
if (!completionInfo.isInLiteral) {
withJsImportIfNecessary(lookupElement, completionInfo.property.containingFile.originalFile, jsProperty)
} else {
lookupElement
}
}
}
private fun withJsImportIfNecessary(lookupElement: LookupElementBuilder, place: PsiElement, jsProperty: JsModelProperty): LookupElementBuilder {
val targetScoutJsModule = jsProperty.scoutJsModule
if (!jsProperty.dataType.isCustomType() && (!targetScoutJsModule.useClassReference || (jsProperty.dataType != JsModelProperty.JsPropertyDataType.WIDGET && jsProperty.name != JsModel.OBJECT_TYPE_PROPERTY_NAME))) return lookupElement
val targetJsModel = targetScoutJsModule.jsModel
val type = if (targetScoutJsModule.useClassReference && (jsProperty.dataType == JsModelProperty.JsPropertyDataType.WIDGET || jsProperty.name == JsModel.OBJECT_TYPE_PROPERTY_NAME)) {
lookupElement.getUserData(SELECTED_ELEMENT)
} else {
targetJsModel.element(jsProperty.dataType.type)
} ?: return lookupElement
val originalHandler = lookupElement.insertHandler
var importName = type.name
val firstDot = importName.indexOf('.')
if (firstDot > 0) importName = importName.take(firstDot)
return lookupElement.withInsertHandler { context, item ->
originalHandler?.handleInsert(context, item)
val targetModuleMainFile = PsiManager.getInstance(context.project).findFile(targetScoutJsModule.mainFile) ?: return@withInsertHandler
ES6ImportPsiUtil.insertJSImport(place, importName, ES6ImportPsiUtil.ImportExportType.SPECIFIER, targetModuleMainFile, context.editor)
}
}
}
}