diff -r 000000000000 -r 16d8024aca5e src/hbcore/gui/hbdevicefadecontrolsym.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/gui/hbdevicefadecontrolsym.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,198 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+#include "hbdevicefadecontrol_p.h"
+
+#include <e32base.h>
+#include <e32std.h>
+#include <e32property.h>
+
+#include <QApplication>
+#include <QEvent>
+
+// There is only one fade control setter, all other applications are getters.
+// Device dialog is the setter.
+const TUid PropertyCategoryUid = {0x20022FC5};
+const TUint FadeKey = 'fade';
+
+class HbDeviceFadeControlPrivate  : public CActive
+{
+public:
+    struct FadeControl {
+        int fadeOff:1; // command for application to unfade
+        int spare:31;
+    };
+
+public:
+    HbDeviceFadeControlPrivate(HbDeviceFadeControl *parent);
+    ~HbDeviceFadeControlPrivate();
+
+    FadeControl get();
+    void set(FadeControl control);
+
+    void start();
+
+    static void create(HbDeviceFadeControl *parent);
+
+public: // from CActive
+    void RunL();
+    void DoCancel();
+
+public:
+    HbDeviceFadeControl *p;
+    RProperty mProperty;
+    bool mIsSetter;
+    FadeControl mSetValue;
+};
+
+HbDeviceFadeControlPrivate::HbDeviceFadeControlPrivate(HbDeviceFadeControl *parent) :
+    CActive(EPriorityHigh), p(parent)
+{
+    RProcess process;
+    mIsSetter = process.SecureId().operator TUid() == PropertyCategoryUid;
+
+    mSetValue.fadeOff = false;
+    mSetValue.spare = 0;
+
+    // Device dialog server is a writer and creates the property.
+    if (mIsSetter) {
+        _LIT_SECURITY_POLICY_PASS(KRdPolicy); // all pass
+        _LIT_SECURITY_POLICY_S0(KWrPolicy, PropertyCategoryUid.iUid); // pass device dialog server
+        mProperty.Define(PropertyCategoryUid, FadeKey, RProperty::EInt, KRdPolicy, KWrPolicy);
+    }
+    mProperty.Attach(PropertyCategoryUid, FadeKey);
+    if (!mIsSetter) {
+        CActiveScheduler::Add(this);
+        start();
+    }
+}
+
+HbDeviceFadeControlPrivate::~HbDeviceFadeControlPrivate()
+{
+    Cancel();
+    mProperty.Close();
+}
+
+// Get fade control
+HbDeviceFadeControlPrivate::FadeControl HbDeviceFadeControlPrivate::get()
+{
+    union {
+        FadeControl asBits;
+        TInt asInt;
+    } fadeControl;
+    fadeControl.asInt = 0;
+    if (!mIsSetter) {
+        mProperty.Get(PropertyCategoryUid, FadeKey, fadeControl.asInt);
+    }
+    return fadeControl.asBits;
+}
+
+// Set (write) fade control
+void HbDeviceFadeControlPrivate::set(FadeControl control)
+{
+    if (mIsSetter && control.fadeOff != mSetValue.fadeOff) {
+        mSetValue.fadeOff = control.fadeOff;
+        union {
+            FadeControl asBits;
+            TInt asInt;
+        } fadeControl;
+        fadeControl.asBits = mSetValue;
+        mProperty.Set(PropertyCategoryUid, FadeKey, fadeControl.asInt);
+        if (!mSetValue.fadeOff) {
+            // If underlying applications are to restore their fading, set this process priority
+            // to background to allow faster restore.
+            //RProcess().SetPriority(EPriorityBackground);
+        }
+    }
+}
+
+// Start property watch request
+void HbDeviceFadeControlPrivate::start()
+{
+    mProperty.Subscribe(iStatus);
+    SetActive();
+}
+
+// Create private if not yet created
+void HbDeviceFadeControlPrivate::create(HbDeviceFadeControl *parent)
+{
+    if (!parent->d) {
+        parent->d = new HbDeviceFadeControlPrivate(parent);
+    }
+}
+
+
+// Property value has changed
+void HbDeviceFadeControlPrivate::RunL()
+{
+    TInt completionCode = iStatus.Int();
+    if (completionCode != KErrCancel) {
+        start();
+    }
+    if (completionCode == KErrNone) {
+        emit p->fadeChange(get().fadeOff);
+    }
+}
+
+// Cancel property subscribe
+void HbDeviceFadeControlPrivate::DoCancel()
+{
+    mProperty.Cancel();
+}
+
+HbDeviceFadeControl::HbDeviceFadeControl(QObject *parent) : QObject(parent)
+{
+    // Creation of private is delayed until any popups are created
+    d = 0;
+}
+
+HbDeviceFadeControl::~HbDeviceFadeControl()
+{
+    delete d;
+}
+
+// Return background fading off control
+bool HbDeviceFadeControl::fadeOff()
+{
+    HbDeviceFadeControlPrivate::create(this); // create private if not created
+    return d->get().fadeOff;
+}
+
+// Set (write) background fading off control
+void HbDeviceFadeControl::setFadeOff(bool fadeOff)
+{
+    HbDeviceFadeControlPrivate::create(this); // create private if not created
+    HbDeviceFadeControlPrivate::FadeControl control = {0, 0};
+    control.fadeOff = fadeOff;
+    d->set(control);
+}
+
+// Return if this fade controll is a setter. There is only one setter
+// (device dialog server)in a device. All other instances are getters.
+bool HbDeviceFadeControl::isSetter()
+{
+    HbDeviceFadeControlPrivate::create(this); // create private if not created
+    return d->mIsSetter;
+}