fix: dont show actions for selected items when there's no selection (#812)

Signed-off-by: Andre Dietisheim <[email protected]>

Author: adietish

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/actions/SetAsCurrentClusterAction.kt

@@ -19,7 +19,7 @@ import com.redhat.devtools.intellij.kubernetes.telemetry.TelemetryService
 import com.redhat.devtools.intellij.kubernetes.telemetry.TelemetryService.NAME_PREFIX_CONTEXT
 import javax.swing.tree.TreePath
 
-class SetAsCurrentClusterAction: StructureTreeAction(IContext::class.java) {
+class SetAsCurrentClusterAction: StructureTreeAction(false, IContext::class.java) {
 
     override fun actionPerformed(event: AnActionEvent?, path: TreePath?, selectedNode: Any?) {
         val context: IContext = selectedNode?.getElement() ?: return
@@ -44,7 +44,7 @@ class SetAsCurrentClusterAction: StructureTreeAction(IContext::class.java) {
     }
 
     override fun isVisible(selected: Array<out Any>?): Boolean {
-        return selected?.size == 1
-                && isVisible(selected[0])
+        return !selected.isNullOrEmpty()
+                && super.isVisible(selected)
     }
 }

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/actions/SetCurrentNamespaceAction.kt

@@ -83,6 +83,11 @@ class SetCurrentNamespaceAction : StructureTreeAction(false) {
         }
     }
 
+    override fun isVisible(selected: Array<out Any>?): Boolean {
+        return !selected.isNullOrEmpty()
+                && super.isVisible(selected)
+    }
+
     override fun isVisible(selected: Any?): Boolean {
         return selected?.getElement<NamespacesFolder>() != null
     }

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/actions/SetCurrentProjectAction.kt

@@ -79,6 +79,11 @@ class SetCurrentProjectAction : StructureTreeAction(false) {
         }
     }
 
+    override fun isVisible(selected: Array<out Any>?): Boolean {
+        return !selected.isNullOrEmpty()
+                && super.isVisible(selected)
+    }
+
     override fun isVisible(selected: Any?): Boolean {
         return selected?.getElement<ProjectsFolder>() != null
     }

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/actions/UseResourceAction.kt

@@ -15,6 +15,11 @@ import io.fabric8.kubernetes.api.model.HasMetadata
 
 abstract class UseResourceAction<N: HasMetadata>(filter: Class<N>) : StructureTreeAction(false, filter) {
 
+	override fun isVisible(selected: Array<out Any>?): Boolean {
+		return !selected.isNullOrEmpty()
+				&& super.isVisible(selected)
+	}
+
 	override fun isVisible(selected: Any?): Boolean {
 		if (!super.isVisible(selected)) {
 			return false