--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javamanager/javainstaller/installer/src.s60/utils/propertylistener.cpp Fri Jul 23 12:27:20 2010 +0300
@@ -0,0 +1,122 @@
+/*
+* Copyright (c) 2010 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 implements general wait object for calling
+* a callback function after subscribed P&S key value changes.
+*
+*/
+
+#include "propertylistener.h"
+#include "logger.h"
+
+using namespace java::installer;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+CPropertyListener* CPropertyListener::NewL(TUid aUid, TUint aKey)
+{
+ CPropertyListener* self = new(ELeave) CPropertyListener(aUid, aKey);
+ CleanupStack::PushL(self);
+ self->ConstructL();
+ CleanupStack::Pop(self);
+ return self;
+}
+
+CPropertyListener::CPropertyListener(TUid aUid, TUint aKey)
+ : CActive(CActive::EPriorityStandard), iUid(aUid), iKey(aKey)
+{
+}
+
+void CPropertyListener::ConstructL()
+{
+ User::LeaveIfError(iProperty.Attach(iUid, iKey));
+ // PropertyListener is always created from a thread which does
+ // not have ActiveScheduler, so create ActiveScheduler now.
+ iActiveScheduler = new(ELeave) CActiveScheduler;
+ CActiveScheduler::Install(iActiveScheduler);
+ // Add this object to the ActiveScheduler.
+ CActiveScheduler::Add(this);
+}
+
+CPropertyListener::~CPropertyListener()
+{
+ Cancel();
+ iProperty.Close();
+ if (iActiveScheduler)
+ {
+ delete iActiveScheduler;
+ iActiveScheduler = 0;
+ }
+}
+
+void CPropertyListener::ProcessEventsL(JNIEnv *aEnv, jobject aProvider)
+{
+ // Get the java side callback method.
+ jclass clazz = aEnv->GetObjectClass(aProvider);
+ jmethodID method = aEnv->GetMethodID(clazz, "valueChanged", "(I)V");
+
+ iEnv = aEnv;
+ iProvider = aProvider;
+ iMethod = method;
+
+ // Run propertyListener once so that the current property value
+ // gets delivered and property value changes are subscribed.
+ RunL();
+
+ // Start ActiveScheduler.
+ CActiveScheduler::Start();
+}
+
+void CPropertyListener::RunL()
+{
+ if (iCancelled)
+ {
+ CActiveScheduler::Stop();
+ return;
+ }
+
+ // Resubscribe before handling the new value to prevent missing updates.
+ iProperty.Subscribe(iStatus);
+ SetActive();
+
+ TInt value;
+ TInt err = iProperty.Get(value);
+ if (KErrNone == err)
+ {
+ //ILOG3(EJavaInstaller,
+ // "CPropertyListener::RunL: property value changed"
+ // ", uid: 0x%x, key: 0x%x, value: %d", iUid.iUid, iKey, value);
+ // Use callback method to deliver the changed property value to
+ // Java side object.
+ iEnv->CallVoidMethod(iProvider, iMethod, value);
+ }
+ else if (KErrNotFound == err)
+ {
+ // Property deleted, no actions needed.
+ }
+ else
+ {
+ // Error while reading property value.
+ ELOG3(EJavaInstaller,
+ "CPropertyListener::RunL: getting property value failed"
+ ", uid: 0x%x, key: 0x%x, err=%d", iUid.iUid, iKey, err);
+ }
+}
+
+void CPropertyListener::DoCancel()
+{
+ iCancelled = ETrue;
+ iProperty.Cancel();
+}