--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_akn/volumekeys/src/cmmaglobalvolume.cpp Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,240 @@
+/*
+* 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 <jdebug.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()
+{
+ DEBUG_INT("THREADID = %d : CMMAGlobalVolume: VolumeUp: +", RThread().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))
+ {
+ DEBUG("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);
+ }
+ DEBUG("CMMAGlobalVolume: VolumeUp: -");
+}
+
+// ---------------------------------------------------------------------------
+// CMMAGlobalVolume::VolumeDown
+// ---------------------------------------------------------------------------
+//
+void CMMAGlobalVolume::VolumeDown()
+{
+ DEBUG_INT("THREADID = %d : CMMAGlobalVolume: VolumeDown: +", RThread().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))
+ {
+ DEBUG("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);
+ }
+ DEBUG("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;
+ DEBUG_INT(
+ "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);
+ iSettingsStore = CRepository::NewL(KCRUidMobileMedia);
+
+ // Get level from the settings store
+ User::LeaveIfError(iSettingsStore->Get(KMobileMediaVolumeLevel, iLevel));
+}
+
+// End of file