voicerecorder/RecViewSrc/CVRMediaRemovalMonitor.cpp
branchRCL_3
changeset 21 c6bafb5162d8
parent 10 bb90e4148332
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/voicerecorder/RecViewSrc/CVRMediaRemovalMonitor.cpp	Wed Sep 01 12:29:14 2010 +0100
@@ -0,0 +1,161 @@
+/*
+* 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:  Monitors for Media removal
+*
+*/
+
+
+#include <e32base.h>
+#include <f32file.h>
+#include "CVRMediaRemovalMonitor.h"
+
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+//
+CVRMediaRemovalMonitor::CVRMediaRemovalMonitor
+                  ( TInt aDrive, RFs& aFs, MVRMediaRemovalObserver* aObserver ) 
+                                                       : CActive(EPriorityHigh),
+                                                         iDrive( aDrive ),
+                                                         iFs( aFs ),
+                                                         iDiskRemoved( EFalse ),
+                                                         iObserver( aObserver )
+                                                         
+    {
+    CActiveScheduler::Add(this);
+    }
+
+
+// ---------------------------------------------------------------------------
+// 2nd Phase Constructor
+// ---------------------------------------------------------------------------
+//
+void CVRMediaRemovalMonitor::ConstructL()
+    {
+ 
+    // Initial state
+    TDriveInfo drive;
+  	User::LeaveIfError(iFs.Drive(drive, TInt(iDrive)));
+   	iDiskRemoved = (drive.iType == EMediaNotPresent);
+
+    // Start listening
+    TNotifyType notType(ENotifyDisk);
+    iFs.NotifyChange( notType, iStatus );
+    SetActive();
+    }
+
+
+// ---------------------------------------------------------------------------
+// Two-Phased Constructor
+// ---------------------------------------------------------------------------
+//
+CVRMediaRemovalMonitor* CVRMediaRemovalMonitor::NewL
+                ( TInt aDrive, RFs& aFs, MVRMediaRemovalObserver* aObserver )
+    {
+    CVRMediaRemovalMonitor* self
+                               = CVRMediaRemovalMonitor::NewLC( aDrive,
+                                                                 aFs,
+                                                                 aObserver );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Two-Phased Constructor
+// ---------------------------------------------------------------------------
+//
+CVRMediaRemovalMonitor* CVRMediaRemovalMonitor::NewLC
+               ( TInt aDrive, RFs& aFs, MVRMediaRemovalObserver* aObserver )
+    {
+    CVRMediaRemovalMonitor* self = 
+                          new( ELeave ) CVRMediaRemovalMonitor( aDrive,
+                                                                 aFs,
+                                                                 aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CVRMediaRemovalMonitor::~CVRMediaRemovalMonitor()
+    {
+    Cancel();
+    }
+
+    
+// ---------------------------------------------------------------------------
+// Service the request
+// ---------------------------------------------------------------------------
+//
+void CVRMediaRemovalMonitor::RunL()
+    {
+    // Re-subscribe to event.
+    TNotifyType notType(ENotifyDisk);
+    iFs.NotifyChange( notType, iStatus );
+    SetActive();
+    
+    // Check state
+    TDriveInfo drive;
+	User::LeaveIfError(iFs.Drive(drive, TInt(iDrive)));
+	
+	  // Notify Observer
+    switch(drive.iType)
+        {
+        case EMediaNotPresent:
+            {
+            if (!iDiskRemoved)
+                {
+                iObserver->HandleMMCEjectEventL( );
+                }
+                iDiskRemoved = ETrue;
+            break;
+            }
+        default:
+            {
+            if ( iDiskRemoved &&
+        		 ( drive.iMediaAtt & ( KMediaAttLockable|KMediaAttLocked|KMediaAttHasPassword ) ) != 
+ 				 ( KMediaAttLockable|KMediaAttLocked|KMediaAttHasPassword ) ) 
+                {
+                //do nothing
+                iDiskRemoved = EFalse;
+                }
+            break;
+            }
+        }
+    
+    }
+    
+// ---------------------------------------------------------------------------
+// Cancel NotifyChange request from file system
+// ---------------------------------------------------------------------------
+//
+void CVRMediaRemovalMonitor::DoCancel()
+    {
+    iFs.NotifyChangeCancel();
+    }
+    
+// ----------------------------------------------------------------------------
+// Handles a leave occurring in the request completion event handler RunL()
+// Don't care if client has a User::Leave() in RunL(), keep monitoring for events
+// ----------------------------------------------------------------------------
+//
+TInt CVRMediaRemovalMonitor::RunError(TInt aError)
+    {
+    return KErrNone;
+    }