author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 19 Mar 2010 09:28:59 +0200 | |
changeset 23 | 74c9f037fd5d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 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: Classes for thumbnail-related tasks. |
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* |
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*/ |
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/** |
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* @internal reviewed 31/07/2007 by Simon Brooks |
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*/ |
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#include "glxtnthumbnailcreator.h" |
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#include "glxpanic.h" |
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#include "glxtnbackgroundgenerationtask.h" |
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#include "glxtncleanuptask.h" |
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#include "glxtndeletethumbnailstask.h" |
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#include "glxtnfileutility.h" |
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#include "glxtnfilteravailabletask.h" |
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#include "glxtngeneratethumbnailtask.h" |
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#include "glxtnquickthumbnailtask.h" |
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#include "glxtntaskmanager.h" |
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#include "glxtnthumbnailrequest.h" |
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#include "glxtnzoomedimagetask.h" |
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#include "mglxtnthumbnailcreatorclient.h" |
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#include <glxtracer.h> |
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#include <glxsettingsmodel.h> |
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// ----------------------------------------------------------------------------- |
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// InstanceL |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C CGlxtnThumbnailCreator* CGlxtnThumbnailCreator::InstanceL() |
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{ |
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TRACER("CGlxtnThumbnailCreator::InstanceL()"); |
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CGlxtnThumbnailCreator* instance |
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= reinterpret_cast<CGlxtnThumbnailCreator*>(Dll::Tls()); |
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// Create instance if does not exist |
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if ( !instance ) |
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{ |
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instance = new (ELeave) CGlxtnThumbnailCreator(); |
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CleanupStack::PushL(instance); |
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instance->ConstructL(); |
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CleanupStack::Pop(instance); |
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Dll::SetTls(instance); |
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} |
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// Add user |
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instance->iReferenceCount++; |
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return instance; |
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} |
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// ----------------------------------------------------------------------------- |
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// Close |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGlxtnThumbnailCreator::Close(MGlxtnThumbnailStorage* aStorage) |
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{ |
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TRACER("CGlxtnThumbnailCreator::Close()"); |
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// Cancel any tasks using the client's storage |
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if ( aStorage ) |
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{ |
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iTaskManager->CancelTasks(aStorage); |
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} |
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__ASSERT_DEBUG(iReferenceCount > 0, Panic(EGlxPanicIllegalState)); |
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iReferenceCount--; |
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if ( iReferenceCount < 1 ) |
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{ |
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Dll::SetTls(NULL); |
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delete this; |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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// Constructor |
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// ----------------------------------------------------------------------------- |
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// |
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CGlxtnThumbnailCreator::CGlxtnThumbnailCreator() |
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{ |
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TRACER("CGlxtnThumbnailCreator::CGlxtnThumbnailCreator()"); |
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} |
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// ----------------------------------------------------------------------------- |
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// ConstructL |
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// ----------------------------------------------------------------------------- |
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// |
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void CGlxtnThumbnailCreator::ConstructL() |
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{ |
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TRACER("CGlxtnThumbnailCreator::ConstructL()"); |
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iFileUtility = CGlxtnFileUtility::NewL(); |
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iTaskManager = CGlxtnTaskManager::NewL(); |
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iSettingsModel = CGlxSettingsModel::InstanceL(); |
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} |
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111 |
|
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// ----------------------------------------------------------------------------- |
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// Destructor |
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// ----------------------------------------------------------------------------- |
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// |
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CGlxtnThumbnailCreator::~CGlxtnThumbnailCreator() |
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{ |
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TRACER("CGlxtnThumbnailCreator::~CGlxtnThumbnailCreator()"); |
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delete iTaskManager; |
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delete iFileUtility; |
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if (iSettingsModel) |
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{ |
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iSettingsModel->Close(); |
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} |
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} |
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126 |
|
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// ----------------------------------------------------------------------------- |
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// FetchThumbnailL |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGlxtnThumbnailCreator::FetchThumbnailL( |
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const TGlxThumbnailRequest& aRequestInfo, |
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MGlxtnThumbnailCreatorClient& aClient) |
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{ |
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TRACER("void CGlxtnThumbnailCreator::FetchThumbnailL()"); |
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// Create the task |
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CGlxtnTask* task = NULL; |
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|
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if ( 0 == aRequestInfo.iBitmapHandle ) |
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{ |
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task = CGlxtnBackgroundGenerationTask::NewL(aRequestInfo.iId, |
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*iFileUtility, aClient, iSettingsModel->SupportedOrientations() ); |
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} |
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else if ( ( 0 == aRequestInfo.iSizeClass.iWidth) || ( 0 == aRequestInfo.iSizeClass.iHeight ) ) |
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145 |
{ |
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User::Leave(KErrArgument); |
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} |
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else if ( !aRequestInfo.iCroppingRect.IsEmpty() ) |
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149 |
{ |
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task = CGlxtnZoomedImageTask::NewL(aRequestInfo, |
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*iFileUtility, aClient); |
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} |
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else if ( TGlxThumbnailRequest::EPrioritizeQuality == aRequestInfo.iPriorityMode ) |
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154 |
{ |
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task = CGlxtnGenerateThumbnailTask::NewL(aRequestInfo, |
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*iFileUtility, aClient); |
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} |
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else |
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159 |
{ |
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task = CGlxtnQuickThumbnailTask::NewL(aRequestInfo, |
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*iFileUtility, aClient); |
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162 |
} |
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163 |
|
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iTaskManager->AddTaskL(task); // Takes ownership |
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} |
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166 |
|
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// ----------------------------------------------------------------------------- |
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// DeleteThumbnailsL |
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// Starts deleting all stored thumbnails for a given item. This will result |
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// in a callback to MGlxtnThumbnailCreatorClient::ThumbnailDeletionComplete(). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGlxtnThumbnailCreator::DeleteThumbnailsL( |
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const TGlxMediaId& aItemId, MGlxtnThumbnailCreatorClient& aClient) |
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175 |
{ |
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TRACER("void CGlxtnThumbnailCreator::DeleteThumbnailsL()"); |
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iTaskManager->AddTaskL(CGlxtnDeleteThumbnailsTask::NewL(aItemId, aClient)); |
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} |
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179 |
|
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// ----------------------------------------------------------------------------- |
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// FilterAvailableThumbnailsL |
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// Starts the filtering of items for which a thumbnail is available from a |
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// list of item IDs. This will result in a callback to |
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// MGlxtnThumbnailCreatorClient::FilterAvailableComplete(). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGlxtnThumbnailCreator::FilterAvailableThumbnailsL( |
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const TArray<TGlxMediaId>& aItemArray, const TSize& aSize, |
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MGlxtnThumbnailCreatorClient& aClient) |
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190 |
{ |
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TRACER("void CGlxtnThumbnailCreator::FilterAvailableThumbnailsL()"); |
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iTaskManager->AddTaskL(CGlxtnFilterAvailableTask::NewL(aItemArray, aSize, |
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aClient)); |
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194 |
} |
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195 |
|
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// ----------------------------------------------------------------------------- |
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// CleanupThumbnailsL |
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// Starts the cleanup of obsolete thumbnails from storage. There is no |
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// callback indicating completion of the request. |
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// ----------------------------------------------------------------------------- |
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201 |
// |
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202 |
EXPORT_C void CGlxtnThumbnailCreator::CleanupThumbnailsL( |
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MGlxtnThumbnailStorage* aStorage) |
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204 |
{ |
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TRACER("void CGlxtnThumbnailCreator::CleanupThumbnailsL()"); |
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iTaskManager->AddTaskL(CGlxtnCleanupTask::NewL(aStorage)); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CancelRequest |
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// Cancel any ongoing tasks for a given item. This ensures the TNC is not |
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// locking the media file. |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGlxtnThumbnailCreator::CancelRequest(const TGlxMediaId& aItemId) |
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{ |
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TRACER("void CGlxtnThumbnailCreator::CancelRequest()"); |
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iTaskManager->CancelTasks(aItemId); |
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} |