From 5775560759a149a56f94fcdf9dee6b10f7bfb2d0 Mon Sep 17 00:00:00 2001
From: Chantara Tith <tith.chantara@gmail.com>
Date: Mon, 8 Aug 2016 10:15:53 +0700
Subject: [PATCH] When creating new LV, disable OK button if the LV name
 already exists.

---
 src/gui/newdialog.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/gui/newdialog.cpp b/src/gui/newdialog.cpp
index 07e913c..e0abddd 100644
--- a/src/gui/newdialog.cpp
+++ b/src/gui/newdialog.cpp
@@ -23,6 +23,7 @@
 
 #include <core/partition.h>
 #include <core/device.h>
+#include <core/lvmdevice.h>
 
 #include <fs/filesystemfactory.h>
 #include <fs/luks.h>
@@ -254,9 +255,11 @@ void NewDialog::slotPasswordStatusChanged()
 
 void NewDialog::onLVNameChanged(const QString& newName)
 {
-    //TODO: validate lvName
     partition().setPartitionPath(device().deviceNode() + QStringLiteral("/") + newName.trimmed());
-    if (dialogWidget().lvName().isVisible() && dialogWidget().lvName().text().isEmpty()) {
+    if ((dialogWidget().lvName().isVisible() &&
+        dialogWidget().lvName().text().isEmpty()) ||
+        (device().type() == Device::LVM_Device &&
+         dynamic_cast<LvmDevice&>(device()).lvPathList().contains(partition().partitionPath())) ) {
         m_IsValidLVName = false;
     } else {
         m_IsValidLVName = true;