author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 13 Oct 2010 14:24:28 +0300 | |
branch | RCL_3 |
changeset 44 | 5033d469f7c9 |
parent 37 | 870918037e16 |
permissions | -rw-r--r-- |
37 | 1 |
/* |
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* Copyright (c) 2004-2005 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: Implements the CLandmarksCategoriesContainer class |
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* |
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*/ |
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#include <aknsfld.h> |
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#include <AknQueryDialog.h> |
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#include <eikclbd.h> |
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#include <eikmenub.h> |
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#include <EPos_CPosLandmarkCategory.h> |
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44
5033d469f7c9
Revision: 201038
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
37
diff
changeset
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#include <LmRefApp.rsg> |
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#include "LandmarksCategoriesContainer.h" |
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#include "LandmarksCommonData.h" |
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#include "LandmarksListbox.h" |
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#include "LandmarksListBoxModel.h" |
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#include "LandmarksApplicationEngine.h" |
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#include "LandmarksCategoriesModel.h" |
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// ============================= LOCAL FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// ResetAndDestroyCategories |
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// Resets and destroys an array of categories. This function is used as a |
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// TCleanupOperation in CLandmarksCategoriesModel. |
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// Params: aAny: The categories array to reset ands destroy |
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// ----------------------------------------------------------------------------- |
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// |
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void ResetAndDestroyCategories(TAny* aAny) |
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{ |
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CArrayPtr<CPosLandmarkCategory>* categories = |
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reinterpret_cast <CArrayPtr<CPosLandmarkCategory>*> (aAny); |
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categories->ResetAndDestroy(); |
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} |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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CLandmarksCategoriesContainer::CLandmarksCategoriesContainer( |
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CAknView& aView, |
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CLandmarksApplicationEngine& aEngine, |
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CEikMenuBar& aMenuBar) |
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: CLandmarksContainerBase(aView, aEngine), |
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iMenuBar(aMenuBar) |
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{ |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::ConstructL( |
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const TRect& aRect) |
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{ |
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// Create listbox and findbox. |
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CLandmarksContainerBase::ConstructL(aRect); |
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// Start observer db events. |
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iEngine.AddDbObserverL(this); |
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// Create data model. |
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iModel = CLandmarksCategoriesModel::NewL(); |
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// Create a descriptor array that will contain the landmark names and |
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// icon indeces. |
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CLandmarksListBoxModel* listBoxModel = iListBox->Model(); |
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listBoxModel->SetItemTextArray(iModel->ItemList()); |
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listBoxModel->SetOwnershipType(ELbmDoesNotOwnItemArray); |
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// Create an icon array the will be displayed in the listbox. |
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CIconList* icons = iModel->CreateIconListL(); |
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iListBox->ItemDrawer()->ColumnData()->SetIconArray(icons); |
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// Observe listbox for state changes. |
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iListBox->SetObserver(this); |
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// Observe findbox for state changes. |
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iFindBox->SetObserver(this); |
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// Populate listbox with categories and icons. |
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StartUpdateListBoxL(); |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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CLandmarksCategoriesContainer::~CLandmarksCategoriesContainer() |
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{ |
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delete iModel; |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::DeleteCategoryL() |
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{ |
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// Format query. |
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HBufC* queryFormat = |
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iCoeEnv->AllocReadResourceAsDes16LC(R_LMREFAPP_DELETE_CATEGORY); |
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CPosLandmarkCategory* category = iEngine.CategoryLC(CurrentCategoryId()); |
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TPtrC name; |
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category->GetCategoryName(name); |
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HBufC* query = HBufC::NewLC(name.Length() + queryFormat->Length()); |
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query->Des().Format(*queryFormat, &name); |
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// Launch dialog. |
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CAknQueryDialog* queryDialog = CAknQueryDialog::NewL(); |
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if (queryDialog->ExecuteLD(R_LMREFAPP_GENERAL_QUERY, *query)) |
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{ |
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// Delete category if positive response. |
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iEngine.DeleteCategoryL(category->CategoryId()); |
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} |
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CleanupStack::PopAndDestroy(3, queryFormat); |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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TPosLmItemId CLandmarksCategoriesContainer::CurrentCategoryId() |
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{ |
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return iModel->CurrentItemId(); |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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TBool CLandmarksCategoriesContainer::IsGlobalL() |
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{ |
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CPosLandmarkCategory* category = iEngine.CategoryLC(CurrentCategoryId()); |
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TBool isGlobal = (category->GlobalCategory() != KPosLmNullGlobalCategory); |
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CleanupStack::PopAndDestroy(category); |
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return isGlobal; |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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TKeyResponse CLandmarksCategoriesContainer::OfferKeyEventL( |
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const TKeyEvent& aKeyEvent, TEventCode aType) |
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{ |
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TKeyResponse response = EKeyWasNotConsumed; |
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switch (aKeyEvent.iCode) |
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{ |
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case EKeyUpArrow: |
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case EKeyDownArrow: |
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// Scrolling the listbox. Forward to iListBox. |
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response = iListBox->OfferKeyEventL(aKeyEvent, aType); |
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break; |
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case EKeyDevice3: |
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// Select key pressed. Display menu. |
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iMenuBar.SetMenuTitleResourceId(R_LMREFAPP_CATEGORIES_MENUBAR); |
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iMenuBar.TryDisplayMenuBarL(); |
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response = EKeyWasConsumed; |
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break; |
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case EKeyBackspace: |
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if (iFindBox->TextLength() == 0 && |
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IsItemSelected() && |
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!IsGlobalL()) |
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{ |
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// If there is no text in the search field backspace will |
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// delete a category. |
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DeleteCategoryL(); |
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response = EKeyWasConsumed; |
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break; |
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} |
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// erase character in find box |
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default: |
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// Forward to findbox. |
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response = iFindBox->OfferKeyEventL(aKeyEvent, aType); |
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break; |
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} |
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return response; |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::NotifyOperationProgressL( |
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TOperation aOperation, |
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TInt /*aProgress*/, |
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TInt aErrorCode) |
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{ |
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switch (aOperation) |
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{ |
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case ECategorySearch: |
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HandleSearchReadyL(aErrorCode); |
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break; |
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case ECategoryRead: |
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HandleReadReadyL(aErrorCode); |
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break; |
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default: |
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break; |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::NotifyDbEventL( |
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TPosLmEvent& aEvent, |
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TInt aErrorCode) |
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{ |
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if (aErrorCode == KErrNone) |
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{ |
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switch (aEvent.iEventType) |
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{ |
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case EPosLmEventUnknownChanges: |
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case EPosLmEventLandmarkUnknownChanges: |
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case EPosLmEventCategoryUnknownChanges: |
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// Any of the events below might have cancelled an ongoing |
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// categories search/read operation => we must restart refreshing listbox |
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case EPosLmEventLandmarkCreated: |
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case EPosLmEventLandmarkDeleted: |
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case EPosLmEventLandmarkUpdated: |
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case EPosLmEventCategoryCreated: |
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case EPosLmEventCategoryDeleted: |
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case EPosLmEventCategoryUpdated: |
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StartUpdateListBoxL(); |
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break; |
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case EPosLmEventNewDefaultDatabaseLocation: |
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// Not supported by this application |
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break; |
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case EPosLmEventMediaRemoved: |
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// Not supported by this application |
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break; |
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default: |
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// Ignore other non-category events |
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break; |
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} |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::HandleControlEventL( |
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CCoeControl* aControl, |
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TCoeEvent aEventType) |
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{ |
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if (aEventType == EEventStateChanged && aControl == iListBox) |
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{ |
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// Take the index of the current item in the list |
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TInt itemIndex = iListBox->CurrentItemIndex(); |
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// Set the current item in the model object regarding to the list box. |
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iModel->SetCurrentItem(itemIndex); |
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} |
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if (aEventType == EEventStateChanged && aControl == iFindBox) |
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{ |
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// Fetch filter from search field |
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TInt searchTextLength = iFindBox->TextLength(); |
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HBufC* filterBuf = HBufC::NewLC(searchTextLength); |
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TPtr filter = filterBuf->Des(); |
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iFindBox->GetSearchText(filter); |
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// If filter has changed repopulate list box. (It is necessary to check |
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// if filter has changed since each filter change generates several |
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// EEventStateChanged events for find box) |
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if (filter != *iOldFilter) |
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{ |
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// Filter has changed. Start filtering. |
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StartUpdateListBoxL(); |
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} |
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CleanupStack::PopAndDestroy(filterBuf); |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::StartUpdateListBoxL() |
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{ |
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// Fetch filter from search field |
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TInt searchTextLength = iFindBox->TextLength(); |
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const TInt KExtraChars = 2; // 2 chars wildcards |
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HBufC* filterBuf = HBufC::NewLC(searchTextLength + KExtraChars); |
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TPtr filter = filterBuf->Des(); |
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iFindBox->GetSearchText(filter); |
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// Find out if there is any prevoius result to limit the search to |
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TInt oldFilterLength = iOldFilter->Length(); |
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TBool searchOnlyInPreviousMatches = |
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// If previous filter is empty there is no search results |
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oldFilterLength > 0 && |
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// If chars have been removed from filter we abandon previous results |
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filter.Length() > oldFilterLength && |
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// There must exist at least one previous match |
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IsItemSelected(); |
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// old filter used - now we can update it |
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delete iOldFilter; |
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iOldFilter = NULL; |
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iOldFilter = filter.AllocL(); |
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// Start to asynchronously populate the listbox model according to filter |
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if (filter.Length() == 0) |
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{ |
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iEngine.StartSearchingCategoriesL(this); |
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} |
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else |
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{ |
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filter.Append(KWildCard); |
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iEngine.StartSearchingCategoriesL( |
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filter, |
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searchOnlyInPreviousMatches, |
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this); |
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} |
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CleanupStack::PopAndDestroy(filterBuf); |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::HandleSearchReadyL(TInt aErrorCode) |
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{ |
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// Delete old icon array and add new |
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CColumnListBoxData* columnData = iListBox->ItemDrawer()->ColumnData(); |
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CArrayPtr<CGulIcon>* iconList = columnData->IconArray(); |
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iconList->ResetAndDestroy(); |
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delete iconList; |
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columnData->SetIconArray(iModel->CreateIconListL()); |
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if (aErrorCode == KErrNone) |
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{ |
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// Update model |
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iModel->SetItemIds(iEngine.FetchCategorySearchResult()); |
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iListBox->HandleItemRemovalL(); |
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iEngine.StartReadingCategoriesL(KNrOfItemsDisplayed, this); |
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iReadingFirstPage = ETrue; |
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} |
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else if (aErrorCode == KErrNotFound) |
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{ |
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// Update model (indicate no item is selected) |
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iModel->SetItemIds(NULL); |
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iModel->SetCurrentItem(iListBox->CurrentItemIndex()); |
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// Update the listbox |
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iListBox->HandleItemRemovalL(); |
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iListBox->DrawDeferred(); |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CLandmarksCategoriesContainer::HandleReadReadyL( |
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TInt aErrorCode) |
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{ |
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// Update model with new categories |
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CArrayPtr<CPosLandmarkCategory>* categories = iEngine.FetchCategoriesLC(); |
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CleanupStack::PushL(TCleanupItem(ResetAndDestroyCategories, categories)); |
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iModel->RepopulateModelL(categories); |
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CleanupStack::PopAndDestroy(2, categories); |
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if (aErrorCode == KErrNone) |
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{ |
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if (iReadingFirstPage) |
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{ |
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// First page ready |
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iReadingFirstPage = EFalse; |
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// Add the first page |
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iListBox->HandleItemAdditionL(); |
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// Set the first item selected by default. We must do this since |
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// HandleItemRemovalL in HandleSearchReadyL resets the listbox. |
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iModel->SetCurrentItem(0); |
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iListBox->SetCurrentItemIndex(0); |
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} |
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else |
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{ |
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iListBox->HandleItemAdditionL(); |
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} |
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} |
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} |
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