aligned new file creation to the java ide.

Signed-off-by: Akos Kitta <kittaakos@typefox.io>

arduino-ide-extension/src/browser/theia/workspace/workspace-input-dialog.ts

@@ -0,0 +1,39 @@
+import { inject } from 'inversify';
+import { MaybePromise } from '@theia/core/lib/common/types';
+import { LabelProvider } from '@theia/core/lib/browser/label-provider';
+import { DialogError, DialogMode } from '@theia/core/lib/browser/dialogs';
+import { WorkspaceInputDialog as TheiaWorkspaceInputDialog, WorkspaceInputDialogProps } from '@theia/workspace/lib/browser/workspace-input-dialog';
+
+export class WorkspaceInputDialog extends TheiaWorkspaceInputDialog {
+
+    protected wasTouched = false;
+
+    constructor(
+        @inject(WorkspaceInputDialogProps) protected readonly props: WorkspaceInputDialogProps,
+        @inject(LabelProvider) protected readonly labelProvider: LabelProvider,
+    ) {
+        super(props, labelProvider);
+        this.appendCloseButton('Cancel');
+    }
+
+    protected appendParentPath(): void {
+        // NOOP
+    }
+
+    isValid(value: string, mode: DialogMode): MaybePromise<DialogError> {
+        if (value !== '') {
+            this.wasTouched = true;
+        }
+        return super.isValid(value, mode);
+    }
+
+    protected setErrorMessage(error: DialogError): void {
+        if (this.acceptButton) {
+            this.acceptButton.disabled = !DialogError.getResult(error);
+        }
+        if (this.wasTouched) {
+            this.errorMessageNode.innerText = DialogError.getMessage(error);
+        }
+    }
+
+}