From a31ad5b73ad31402c0dc89ce913b032c35bab79d Mon Sep 17 00:00:00 2001
From: Maurice Kalinowski <maurice.kalinowski@theqtcompany.com>
Date: Fri, 31 Oct 2014 16:09:23 +0100
Subject: WinRT: Set WindowTitle in application switcher

Add platform backend for QWinRTWindow::setWindowTitle.

Task-number: QTBUG-40736
Change-Id: I0b03c9b5977368b38ba63044b00178c3f2bb0b86
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
---
 src/plugins/platforms/winrt/qwinrtwindow.cpp | 27 +++++++++++++++++++++++++++
 src/plugins/platforms/winrt/qwinrtwindow.h   |  1 +
 2 files changed, 28 insertions(+)

(limited to 'src')

diff --git a/src/plugins/platforms/winrt/qwinrtwindow.cpp b/src/plugins/platforms/winrt/qwinrtwindow.cpp
index 35d6b64008..8800db60d3 100644
--- a/src/plugins/platforms/winrt/qwinrtwindow.cpp
+++ b/src/plugins/platforms/winrt/qwinrtwindow.cpp
@@ -40,6 +40,14 @@
 #include <QtGui/QWindow>
 #include <QtGui/QOpenGLContext>
 
+#include <qfunctions_winrt.h>
+#include <windows.ui.viewmanagement.h>
+#include <wrl.h>
+
+using namespace ABI::Windows::UI::ViewManagement;
+using namespace Microsoft::WRL;
+using namespace Microsoft::WRL::Wrappers;
+
 QT_BEGIN_NAMESPACE
 
 QWinRTWindow::QWinRTWindow(QWindow *window)
@@ -48,6 +56,7 @@ QWinRTWindow::QWinRTWindow(QWindow *window)
 {
     setWindowFlags(window->flags());
     setWindowState(window->windowState());
+    setWindowTitle(window->title());
     handleContentOrientationChange(window->contentOrientation());
     setGeometry(window->geometry());
 }
@@ -94,6 +103,24 @@ void QWinRTWindow::setVisible(bool visible)
         m_screen->removeWindow(window());
 }
 
+void QWinRTWindow::setWindowTitle(const QString &title)
+{
+    ComPtr<IApplicationViewStatics2> statics;
+    HRESULT hr;
+
+    hr = RoGetActivationFactory(HString::MakeReference(RuntimeClass_Windows_UI_ViewManagement_ApplicationView).Get(),
+                              IID_PPV_ARGS(&statics));
+    RETURN_VOID_IF_FAILED("Could not get ApplicationViewStatics");
+
+    ComPtr<IApplicationView> view;
+    hr = statics->GetForCurrentView(&view);
+    RETURN_VOID_IF_FAILED("Could not access currentView");
+
+    HStringReference str(reinterpret_cast<LPCWSTR>(title.utf16()), title.length());
+    hr = view->put_Title(str.Get());
+    RETURN_VOID_IF_FAILED("Unable to set window title");
+}
+
 void QWinRTWindow::raise()
 {
     if (!window()->isTopLevel())
diff --git a/src/plugins/platforms/winrt/qwinrtwindow.h b/src/plugins/platforms/winrt/qwinrtwindow.h
index 85f3efab5d..7e01efa818 100644
--- a/src/plugins/platforms/winrt/qwinrtwindow.h
+++ b/src/plugins/platforms/winrt/qwinrtwindow.h
@@ -52,6 +52,7 @@ public:
     bool isExposed() const;
     void setGeometry(const QRect &rect);
     void setVisible(bool visible);
+    void setWindowTitle(const QString &title);
     void raise();
     void lower();
 
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