more basic stuff

include/window.h

@@ -13,6 +13,7 @@ public:
 	explicit Window(QWidget *parent = 0);
 
 public slots:
+	void moveUp();
 	void changeIndex(const QModelIndex& index);
 	
 private:

src/window.cpp

@@ -6,28 +6,43 @@
 #include <QFileSystemModel>
 #include <QString>
 #include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <QDesktopServices>
+#include <QUrl>
 
 Window::Window(QWidget *parent) :
 	QWidget(parent)
 {
+	QVBoxLayout* navbar = new QVBoxLayout(this);
+	mButton = new QPushButton("^");
+	navbar->addWidget(mButton);
+
 	QHBoxLayout* splitter = new QHBoxLayout(this);
 	mListView = new QListView(this);
 	splitter->addWidget(mListView);
-	this->setLayout(splitter);
-	//mButton = new QPushButton("add", this);
+	navbar->addItem(splitter);
+	this->setLayout(navbar);
 
 	mModel = new QFileSystemModel();
 	mListView->setModel(mModel);
 
-	mModel->setRootPath("/home/user/");
+	mModel->setRootPath("/");
 	mListView->setRootIndex(mModel->index("/home/user/"));
 
 	QObject::connect(mListView, &QListView::doubleClicked,
 	                 this, &Window::changeIndex);
+	QObject::connect(mButton, &QPushButton::clicked,
+	                 this, &Window::moveUp);
+}
+
+void Window::moveUp() {
+	mListView->setRootIndex(mListView->rootIndex().parent());
 }
 
 void Window::changeIndex(const QModelIndex& index) {
 	if (mModel->isDir(index)) {
 		mListView->setRootIndex(index);
+	} else {
+		QDesktopServices::openUrl(QUrl::fromLocalFile(mModel->filePath(index)));
 	}
 }