diff -r 6c158198356e -r ae942d28ec0e javauis/mmapi_qt/volumekeys/src/cmmaglobalvolume.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_qt/volumekeys/src/cmmaglobalvolume.cpp	Tue Aug 31 15:09:22 2010 +0300
@@ -0,0 +1,241 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  This class is used for global volume
+*
+*/
+
+
+// CLASS HEADER
+#include "cmmaglobalvolume.h"
+
+// INTERNAL INCLUDES
+#include "cmmaplayer.h"
+#include "cmmaforeground.h"
+#include "cmmavolumekeyslistener.h"
+#include "mmaprivatecrkeys.h"
+
+// EXTERNAL INCLUDES
+#include <centralrepository.h>
+#include <logger.h>
+
+// UNNAMED LOCAL NAMESPACE
+namespace
+{
+// Volume level step size
+const TInt KMMAVolumeLevelStep = 10;
+// Error when setting new volume level for a control
+_LIT(KMMAGlobalVolumeSetError, "Can't set volume level");
+}
+
+
+// ============================ MEMBER FUNCTIONS =============================
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::NewL
+// ---------------------------------------------------------------------------
+//
+CMMAGlobalVolume* CMMAGlobalVolume::NewL(CMMAForeground* aForeground)
+{
+    CMMAGlobalVolume* self = new(ELeave) CMMAGlobalVolume(aForeground);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::~CMMAGlobalVolume
+// ---------------------------------------------------------------------------
+//
+CMMAGlobalVolume::~CMMAGlobalVolume()
+{
+    delete iVolumeKeysListener;
+    //delete iSettingsStore;
+    delete iForeground;
+    iControlList.Close();
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::AddPlayerL
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::AddPlayerL(CMMAPlayer* aPlayer)
+{
+    // Find if the player has a volume control
+    CMMAVolumeControl* control = FindVolumeControl(aPlayer);
+
+    // Ignore adding new player if it does not support volume control
+    if (control)
+    {
+        TMMAPlayerHolder playerHolder;
+        // Create new volume control and level index pair
+        playerHolder.iVolumeControl = control;
+        playerHolder.iVolumeIndex = control->AddLevelL();
+        playerHolder.iPlayer = aPlayer;
+        // Set current volume level for the control
+        control->SetVolumeLevelL(playerHolder.iVolumeIndex, iLevel);
+        // Add created pair to the control list
+        iControlList.AppendL(playerHolder);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::RemovePlayer
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::RemovePlayer(CMMAPlayer* aPlayer)
+{
+    // Find if the player has a volume control
+    CMMAVolumeControl* control = FindVolumeControl(aPlayer);
+
+    // Ignore adding new player if it does not support volume control
+    if (control)
+    {
+        // Check that if this type of volume control can be found from
+        // the control list and remove it
+        TInt count(iControlList.Count());
+        for (TInt i(0); i < count; i++)
+        {
+            const TMMAPlayerHolder& holder = iControlList[ i ];
+            if (control == holder.iVolumeControl)
+            {
+                iControlList.Remove(i);
+                break;
+            }
+        }
+    }
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::VolumeUp
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::VolumeUp()
+{
+    LOG1(EJavaMMAPI, EInfo, "THREADID = %d : CMMAGlobalVolume: VolumeUp: +", RThread().Id().Id());
+    // Adjust volume if midlet is in foreground and the volume level value
+    // is not too high, in this case it cannot be set over KMMAVolumeMaxLevel
+    if (iForeground->IsForeground() && (iLevel < KMMAVolumeMaxLevel))
+    {
+        LOG(EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeUp: Volume up");
+        // Check that the current volume level is not increased too much
+        TInt level =
+            iLevel > (KMMAVolumeMaxLevel - KMMAVolumeLevelStep) ?
+            KMMAVolumeMaxLevel - iLevel : iLevel + KMMAVolumeLevelStep;
+        // Increase level by new value
+        SetControlVolumeLevels(level);
+    }
+    LOG(EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeUp: -");
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::VolumeDown
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::VolumeDown()
+{
+    LOG1(EJavaMMAPI, EInfo, "THREADID = %d : CMMAGlobalVolume: VolumeDown: +", RThread().Id().Id());
+    // Adjust volume if midlet is in foreground and the volume value
+    // is not too low, in this case it cannot be set under zero
+    if (iForeground->IsForeground() && (iLevel > 0))
+    {
+        LOG(EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeDown: Volume down");
+        // Check that the currnet volume level is not decreased too much
+        TInt level =
+            iLevel < KMMAVolumeLevelStep ?
+            0 : iLevel - KMMAVolumeLevelStep;
+        // Decrease level by new value
+        SetControlVolumeLevels(level);
+    }
+    LOG(EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeDown: -");
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::FindVolumeControl
+// ---------------------------------------------------------------------------
+//
+CMMAVolumeControl* CMMAGlobalVolume::FindVolumeControl(CMMAPlayer* aPlayer)
+{
+    TInt count(aPlayer->ControlCount());
+    for (TInt i(0); i < count; i++)
+    {
+        CMMAControl* control = aPlayer->Control(i);
+        // Check that if this control supports volume control
+        if (control->ClassName() == KMMAVolumeControlName)
+        {
+            return static_cast< CMMAVolumeControl* >(control);
+        }
+    }
+    // Does not support volume control
+    return NULL;
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::SetControlVolumeLevels
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::SetControlVolumeLevels(TInt aLevel)
+{
+    TInt count(iControlList.Count());
+    // Adjust volume for all current volume controls associated
+    for (TInt i(0); i < count; i++)
+    {
+        const TMMAPlayerHolder& hdr = iControlList[ i ];
+        // Set new volume level for this control
+        TRAPD(error,
+              hdr.iVolumeControl->SetVolumeLevelL(hdr.iVolumeIndex, aLevel));
+        if (error != KErrNone)
+        {
+            hdr.iPlayer->PostStringEvent(
+                CMMAPlayerEvent::EError,
+                KMMAGlobalVolumeSetError());
+        }
+    }
+
+    iLevel = aLevel;
+    LOG1(EJavaMMAPI, EInfo,
+         "CMMAGlobalVolume::SetControlVolumeLevels - iLevel = %d", iLevel);
+
+    // Store new volume to MMA global settings. Error cannot be reported
+    // in any sophisticated way so we just have to ignore it. Debug builds
+    // may panic in this case
+    TInt error = iSettingsStore->Set(KMobileMediaVolumeLevel, aLevel);
+    __ASSERT_DEBUG(error == KErrNone, User::Invariant());
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::CMMAGlobalVolume
+// ---------------------------------------------------------------------------
+//
+CMMAGlobalVolume::CMMAGlobalVolume(CMMAForeground* aForeground) :
+        iLevel(KMMAVolumeMaxLevel),
+        iForeground(aForeground)
+{
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::ConstructL()
+{
+    iVolumeKeysListener = CMMAVolumeKeysListener::NewL(this);
+    // TO-DO remove TRAP_IGNORE
+    // TRAP_IGNORE(err,iSettingsStore = CRepository::NewL(KCRUidMobileMedia));
+
+    // Get level from the settings store
+    //User::LeaveIfError(iSettingsStore->Get(KMobileMediaVolumeLevel, iLevel));
+}
+
+// End of file