Add a native interface with the ability to query the window group

The window group is needed by QtMobility, as the BB multimedia
API requires the window group when creating a video overlay
window

Change-Id: Ifc029c31b5a1750631a6b397f7c33aa31e483c81
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>

5 files changed, 168 insertions, 3 deletions

diff --git a/src/plugins/platforms/blackberry/blackberry.pro b/src/plugins/platforms/blackberry/blackberry.pro
index 7f6da24..7ffb7f4 100644
--- a/src/plugins/platforms/blackberry/blackberry.pro
+++ b/src/plugins/platforms/blackberry/blackberry.pro
@@ -20,7 +20,8 @@ SOURCES =   main.cpp \
             qbblocalethread.cpp \
             qbbrootwindow.cpp \
             qbbscreeneventhandler.cpp \
-            qbbabstractvirtualkeyboard.cpp
+            qbbabstractvirtualkeyboard.cpp \
+            qbbnativeinterface.cpp
 
 HEADERS =   qbbbuffer.h \
             qbbeventthread.h \
@@ -37,7 +38,8 @@ HEADERS =   qbbbuffer.h \
             qbblocalethread.h \
             qbbrootwindow.h \
             qbbscreeneventhandler.h \
-            qbbabstractvirtualkeyboard.h
+            qbbabstractvirtualkeyboard.h \
+            qbbnativeinterface.h
 
 QMAKE_CXXFLAGS += -I./private
 
diff --git a/src/plugins/platforms/blackberry/qbbintegration.cpp b/src/plugins/platforms/blackberry/qbbintegration.cpp
index 5ca3833..76a47dc 100644
--- a/src/plugins/platforms/blackberry/qbbintegration.cpp
+++ b/src/plugins/platforms/blackberry/qbbintegration.cpp
@@ -54,6 +54,7 @@
 #include "qbbclipboard.h"
 #include "qbbglcontext.h"
 #include "qbblocalethread.h"
+#include "qbbnativeinterface.h"
 
 #include "qapplication.h"
 #include <QtGui/private/qpixmap_raster_p.h>
@@ -76,7 +77,8 @@ QBBIntegration::QBBIntegration() :
     mFontDb(new QGenericUnixFontDatabase()),
     mScreenEventHandler(new QBBScreenEventHandler()),
     mPaintUsingOpenGL(getenv("QBB_USE_OPENGL") != NULL),
-    mVirtualKeyboard(0)
+    mVirtualKeyboard(0),
+    mNativeInterface(new QBBNativeInterface(this))
 {
     qRegisterMetaType<screen_window_t>();
 
@@ -146,6 +148,8 @@ QBBIntegration::~QBBIntegration()
 #endif
 
 
+    delete mNativeInterface;
+
     // destroy the keyboard class.
     delete mVirtualKeyboard;
 
@@ -215,6 +219,11 @@ QWindowSurface *QBBIntegration::createWindowSurface(QWidget *widget, WId winId)
         return new QBBRasterWindowSurface(widget);
 }
 
+QPlatformNativeInterface *QBBIntegration::nativeInterface() const
+{
+    return mNativeInterface;
+}
+
 void QBBIntegration::moveToScreen(QWidget *window, int screen)
 {
 #if defined(QBBINTEGRATION_DEBUG)
@@ -249,6 +258,24 @@ QPlatformClipboard *QBBIntegration::clipboard() const
 }
 #endif
 
+
+QBBScreen *QBBIntegration::screenForWindow(screen_window_t window) const
+{
+    screen_display_t display = 0;
+    if (screen_get_window_property_pv(window, SCREEN_PROPERTY_DISPLAY, (void**)&display) != 0) {
+        qWarning("QBBIntegration: Failed to get screen for window, errno=%d", errno);
+        return 0;
+    }
+
+    Q_FOREACH (QPlatformScreen *screen, mScreens) {
+        QBBScreen * const bbScreen = static_cast<QBBScreen*>(screen);
+        if (bbScreen->nativeDisplay() == display)
+            return bbScreen;
+    }
+
+    return 0;
+}
+
 QBBScreen *QBBIntegration::primaryDisplay() const
 {
     return static_cast<QBBScreen*>(mScreens.first());
diff --git a/src/plugins/platforms/blackberry/qbbintegration.h b/src/plugins/platforms/blackberry/qbbintegration.h
index 2d81184..4b52fcc 100644
--- a/src/plugins/platforms/blackberry/qbbintegration.h
+++ b/src/plugins/platforms/blackberry/qbbintegration.h
@@ -52,6 +52,7 @@ class QBBLocaleThread;
 class QBBAbstractVirtualKeyboard;
 class QBBScreen;
 class QBBScreenEventHandler;
+class QBBNativeInterface;
 
 class QBBIntegration : public QPlatformIntegration
 {
@@ -64,6 +65,7 @@ public:
     virtual QPixmapData *createPixmapData(QPixmapData::PixelType type) const;
     virtual QPlatformWindow *createPlatformWindow(QWidget *widget, WId winId) const;
     virtual QWindowSurface *createWindowSurface(QWidget *widget, WId winId) const;
+    virtual QPlatformNativeInterface *nativeInterface() const;
 
     virtual QList<QPlatformScreen *> screens() const;
     virtual void moveToScreen(QWidget *window, int screen);
@@ -77,6 +79,8 @@ public:
 
     bool paintUsingOpenGL() const { return mPaintUsingOpenGL; }
 
+    QBBScreen *screenForWindow(screen_window_t window) const;
+
 private:
     QBBScreen *primaryDisplay() const;
     void createDisplays();
@@ -91,6 +95,7 @@ private:
     QBBScreenEventHandler *mScreenEventHandler;
     bool mPaintUsingOpenGL;
     QBBAbstractVirtualKeyboard *mVirtualKeyboard;
+    QBBNativeInterface *mNativeInterface;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/blackberry/qbbnativeinterface.cpp b/src/plugins/platforms/blackberry/qbbnativeinterface.cpp
new file mode 100644
index 0000000..8cd931b
--- /dev/null
+++ b/src/plugins/platforms/blackberry/qbbnativeinterface.cpp
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Research In Motion
+**
+** Contact: Research In Motion <blackberry-qt@qnx.com>
+** Contact: Klarälvdalens Datakonsult AB <info@kdab.com>
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qbbnativeinterface.h"
+
+#include "qbbintegration.h"
+#include "qbbscreen.h"
+#include <QtGui/QWidget>
+#include <screen/screen.h>
+
+QT_BEGIN_NAMESPACE
+
+QBBNativeInterface::QBBNativeInterface(QBBIntegration *integration)
+    : mIntegration(integration)
+{
+}
+
+void *QBBNativeInterface::nativeResourceForWidget(const QByteArray &resource, QWidget *widget)
+{
+    if (resource == "windowGroup" && widget) {
+        const QWidget * const nativeWidget = widget->nativeParentWidget();
+        const screen_window_t window = reinterpret_cast<screen_window_t>(nativeWidget->winId());
+        const QBBScreen * const screen = mIntegration->screenForWindow(window);
+        if (screen) {
+            // We can't just call data() instead of constData() here, since that would detach
+            // and the lifetime of the char * would not be long enough. Therefore the const_cast.
+            return const_cast<char *>(screen->rootWindow()->groupName().constData());
+        }
+    }
+
+    return 0;
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/blackberry/qbbnativeinterface.h b/src/plugins/platforms/blackberry/qbbnativeinterface.h
new file mode 100644
index 0000000..5a7a865
--- /dev/null
+++ b/src/plugins/platforms/blackberry/qbbnativeinterface.h
@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Research In Motion
+**
+** Contact: Research In Motion <blackberry-qt@qnx.com>
+** Contact: Klarälvdalens Datakonsult AB <info@kdab.com>
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QBBNATIVEINTERFACE_H
+#define QBBNATIVEINTERFACE_H
+
+#include <QtGui/QPlatformNativeInterface>
+
+QT_BEGIN_NAMESPACE
+
+class QBBIntegration;
+
+class QBBNativeInterface : public QPlatformNativeInterface
+{
+public:
+    explicit QBBNativeInterface(QBBIntegration *integration);
+    virtual void *nativeResourceForWidget(const QByteArray &resource, QWidget *widget);
+
+private:
+    QBBIntegration *mIntegration;
+};
+
+QT_END_NAMESPACE
+
+#endif