[bazel] Show Scala source file templates in Bazel projects

#noport

Author: xuansontrinh

scala/integration/intellij-bazel/resources/scalaCommunity.intellij-bazel.xml

@@ -7,4 +7,7 @@
     <extensions defaultExtensionNs="org.jetbrains.bazel">
         <scalaSdkExtension implementation="org.jetbrains.plugins.scala.bazel.ScalaSdkExtensionImpl"/>
     </extensions>
+    <extensions defaultExtensionNs="org.intellij.scala">
+        <newScalaFileActionExtension implementation="org.jetbrains.plugins.scala.bazel.BazelNewScalaFileActionExtension"/>
+    </extensions>
 </idea-plugin>

scala/integration/intellij-bazel/src/org/jetbrains/plugins/scala/bazel/BazelNewScalaFileActionExtension.scala

@@ -0,0 +1,13 @@
+package org.jetbrains.plugins.scala.bazel
+
+import com.intellij.openapi.actionSystem.{CommonDataKeys, DataContext}
+import org.jetbrains.bazel.config.BazelProjectPropertiesKt
+import org.jetbrains.plugins.scala.actions.NewScalaFileActionExtension
+
+class BazelNewScalaFileActionExtension extends NewScalaFileActionExtension {
+  override def isAvailable(dataContext: DataContext): Boolean = {
+    val project = CommonDataKeys.PROJECT.getData(dataContext)
+    if (project == null) return false
+    BazelProjectPropertiesKt.isBazelProject(project)
+  }
+}