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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "SysApTaskList.h"
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#include <apgwgnam.h>
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CSysApTaskList* CSysApTaskList::NewL(RWsSession& aWsSession)
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{
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CSysApTaskList* self = NewLC(aWsSession);
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CleanupStack::Pop(self);
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return self;
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}
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CSysApTaskList* CSysApTaskList::NewLC(RWsSession& aWsSession)
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{
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CSysApTaskList* self = new(ELeave) CSysApTaskList(aWsSession);
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CleanupStack::PushL(self);
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self->ConstructL();
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return self;
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}
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CSysApTaskList::CSysApTaskList(RWsSession& aWsSession)
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: iWs(aWsSession)
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{
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}
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void CSysApTaskList::ConstructL()
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{
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UpdateListL();
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}
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CSysApTaskList::~CSysApTaskList()
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{
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iWgs.Close();
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}
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void CSysApTaskList::UpdateListL()
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{
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User::LeaveIfError(iWs.WindowGroupList(0, &iWgs));
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}
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const RArray<RWsSession::TWindowGroupChainInfo>& CSysApTaskList::WgArray() const
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{
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return iWgs;
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}
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TApaTask CSysApTaskList::FindRootApp(TUid aAppUid) const
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{
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TApaTask task(iWs);
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task.SetWgId(0); // initialise task to non-existant task
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// wgId = 0 tells FindAppByUid to start looking for apps
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TInt wgId=0;
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FOREVER
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{
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CApaWindowGroupName::FindByAppUid(aAppUid, iWs, wgId);
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// KErrNotFound means that no more apps can be found
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if (wgId == KErrNotFound)
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break;
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if (IsRootWindowGroup(wgId))
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{
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// Found a root wg with the right app UID, return it.
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task.SetWgId(wgId);
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break;
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}
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}
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return task;
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}
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TBool CSysApTaskList::IsRootWindowGroup(TInt aWgId) const
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{
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TInt count = iWgs.Count();
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for (TInt ii=0; ii<count; ii++)
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{
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const RWsSession::TWindowGroupChainInfo& info = iWgs[ii];
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// find the window group id and check that it has no parent
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if (info.iId == aWgId)
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return (info.iParentId <= 0);
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}
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return EFalse;
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}
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TInt CSysApTaskList::FindParentWgId(TInt aWgId) const
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{
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TInt count = iWgs.Count();
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for (TInt ii=0; ii<count; ii++)
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{
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const RWsSession::TWindowGroupChainInfo& info = iWgs[ii];
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if (info.iId == aWgId && info.iParentId > 0 && info.iParentId != info.iId)
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return info.iParentId;
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}
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return 0;
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}
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TInt CSysApTaskList::FindChildWgId(TInt aWgId) const
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{
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TInt count = iWgs.Count();
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for (TInt ii=0; ii<count; ii++)
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{
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const RWsSession::TWindowGroupChainInfo& info = iWgs[ii];
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if (info.iParentId == aWgId && info.iId > 0 && info.iParentId != info.iId)
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return info.iId;
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}
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return 0;
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}
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