From 33921a9535a9089fe18fec0e7d2f7f0a6af85dc9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Fri, 3 Jan 2014 11:24:23 +0100
Subject: [PATCH] [kcm-kwintabbox] Add a debug message on failed QML loading

If the Layout Preview fails to load the Qml, at least show a debug
message to see what's going wrong.
---
 kcmkwin/kwintabbox/layoutpreview.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kcmkwin/kwintabbox/layoutpreview.cpp b/kcmkwin/kwintabbox/layoutpreview.cpp
index 6430bbfdc3..d0249e599f 100644
--- a/kcmkwin/kwintabbox/layoutpreview.cpp
+++ b/kcmkwin/kwintabbox/layoutpreview.cpp
@@ -21,6 +21,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "layoutpreview.h"
 #include "thumbnailitem.h"
 #include <QApplication>
+#include <QDebug>
 #include <QDesktopWidget>
 #include <QQmlEngine>
 #include <QQmlContext>
@@ -45,6 +46,9 @@ LayoutPreview::LayoutPreview(const QString &path, QObject *parent)
     qmlRegisterType<SwitcherItem>("org.kde.kwin", 2, 0, "Switcher");
     qmlRegisterType<QAbstractItemModel>();
     component->loadUrl(QUrl::fromLocalFile(path));
+    if (component->isError()) {
+        qDebug() << component->errorString();
+    }
     QObject *item = component->create();
     auto findSwitcher = [item]() -> SwitcherItem* {
         if (!item) {