/*
* Copyright (c) 2006, 2007 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: Implementation for CAknTreeListView class.
*
*/
#include <AknUtils.h>
#include <skinlayout.cdl.h>
#include <aknlayoutscalable_avkon.cdl.h>
#include <AknsBasicBackgroundControlContext.h>
#include <AknsDrawUtils.h>
#include <barsread.h>
#include <aknappui.h>
#include <aknitemactionmenu.h>
#include <AknTasHook.h> // for testability hooks
#include <AknPriv.hrh>
#include "akntreelistview.h"
#include "akntree.h"
#include "akntreelist.h"
#include "akntreeiterator.h"
#include "akntreelistphysicshandler.h"
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
#include <aknlistboxtfxinternal.h> // LISTBOX EFFECTS IMPLEMENTATION
#include <aknlistloadertfx.h>
#endif // RD_UI_TRANSITION_EFFECTS_LIST
// Value selected so that enough items fit in the array with vga resolution.
const TInt KVisibleItemsArrayGranularity = 16;
// Timeout for long keypress used in markable lists.
const TInt KLongPressInterval = 600000; // 0.6 seconds
// Number of additional items to draw
const TInt KAdditionalItems = 2;
// Tree list view flag definitions.
enum TAknTreeListViewFlags
{
EFlagStructureLines,
EFlagIndention,
EFlagLooping,
EFlagUpdateBackground,
EFlagMarkingEnabled, // Marking of list items is enabled.
EFlagMarkingMode, // List in marking mode (MSK controlled by list).
EFlagMark, // List items are being marked.
EFlagUnmark, // List items are being unmarked.
EFlagSimultaneousMarking, // Simultaneous marking ongoing.
EFlagHashKeyPressed,
EFlagCtrlKeyPressed,
EFlagShiftKeyPressed,
EFlagSaveFocusAfterSorting,
EFlagSingleClickEnabled,
EFlagHighlightEnabled, // Is highlight drawing enabled
EFlagIgnoreButtonUpEvent // Up event ignored (when styluspopup menu open)
};
// ======== MEMBER FUNCTIONS ========
// ---------------------------------------------------------------------------
// Two-phased constructor.
// ---------------------------------------------------------------------------
//
CAknTreeListView* CAknTreeListView::NewL( const CCoeControl& aContainer,
CAknTree& aTree, CAknTreeList& aList )
{
CAknTreeListView* self = new( ELeave ) CAknTreeListView( aTree, aList );
CleanupStack::PushL( self );
self->ConstructL( aContainer );
CleanupStack::Pop( self );
AKNTASHOOK_ADDL( self, "CAknTreeListView" );
return self;
}
// ---------------------------------------------------------------------------
// Destructor.
// ---------------------------------------------------------------------------
//
CAknTreeListView::~CAknTreeListView()
{
AKNTASHOOK_REMOVE();
AknsUtils::DeregisterControlPosition( this );
iItems.Close();
iFocusedItem = NULL; // Not owned.
delete iEmptyListText;
delete iScrollbarFrame;
delete iAnimation;
delete iLongPressTimer;
delete iPhysicsHandler;
if ( iItemActionMenu )
{
iItemActionMenu->RemoveCollection( *this );
}
delete iLongTapDetector;
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if ( CAknListLoader::TfxApiInternal( iGc ) )
{
delete iGc;
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
}
// ---------------------------------------------------------------------------
// Returns the specified layout rectangle.
// ---------------------------------------------------------------------------
//
TRect CAknTreeListView::RectFromLayout( const TRect& aParent,
const TAknWindowComponentLayout& aComponentLayout )
{
TAknLayoutRect layoutRect;
layoutRect.LayoutRect( aParent, aComponentLayout.LayoutLine() );
return layoutRect.Rect();
}
// ---------------------------------------------------------------------------
// Sets the focused item and its position in the view.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetFocusedItem( CAknTreeItem* aItem,
TInt aIndex, TBool aDrawNow )
{
if ( FocusedItem() != aItem || FocusIndex() != aIndex )
{
SetFocusedItem( aItem );
if ( aItem )
{
UpdateVisibleItems( aIndex, aItem );
UpdateViewLevel();
if ( IsMarkable() )
{
UpdateMSKCommand();
}
}
}
// Updates the highlight animation, if the size or background of focused
// item has been changed.
UpdateAnimation();
if ( aDrawNow )
{
Window().Invalidate( Rect() );
}
UpdateScrollbars();
}
// ---------------------------------------------------------------------------
// Sets the focused item and its position in the view.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetFocusedItemAndView( CAknTreeItem* aItem )
{
if ( FocusedItem() != aItem)
{
SetFocusedItem( aItem );
iPreviouslyFocusedItem = FocusedItem();
if ( aItem )
{
TInt index = iTree.ItemIndex( aItem );
if ( index < iItems.Count() )
{
// focused item in first page,
// set focused item to correct line and update view
// to the beginning of list
UpdateVisibleItems( index, aItem );
}
else
{
// focused item not in first page,
// set focused item and update view so that focused item
// is at the lowest line on the screen
UpdateVisibleItems( iItems.Count() - 1, aItem );
}
UpdateViewLevel();
if ( IsMarkable() )
{
UpdateMSKCommand();
}
}
}
// Updates the highlight animation, if the size or background of focused
// item has been changed.
UpdateAnimation();
// Draw always
Window().Invalidate( Rect() );
UpdateScrollbars();
}
// ---------------------------------------------------------------------------
//
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::FocusedItemIndex() const
{
if ( FocusedItemVisible() )
{
return FocusIndex();
}
return -1;
}
// ---------------------------------------------------------------------------
//
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::VisibleItemIndex( CAknTreeItem* aItem ) const
{
for ( TInt ii = 0; ii < iItems.Count(); ++ii )
{
if ( aItem == iItems[ii].Item() )
{
return ii;
}
}
return -1;
}
// ---------------------------------------------------------------------------
//
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetFocusBehaviour( TBool saveFocus )
{
if ( saveFocus)
{
iFlags.Set( EFlagSaveFocusAfterSorting );
}
else
{
iFlags.Clear( EFlagSaveFocusAfterSorting );
}
}
// ---------------------------------------------------------------------------
// Returns pointer to the focused item.
// ---------------------------------------------------------------------------
//
CAknTreeItem* CAknTreeListView::FocusedItem() const
{
return iFocusedItem;
}
// ---------------------------------------------------------------------------
// Returns the highlight rectangle for the focused item.
// ---------------------------------------------------------------------------
//
TRect CAknTreeListView::HighlightRect() const
{
if ( IsFocused() && FocusedItemVisible() )
{
TRect rect = iItems[FocusIndex()].HighlightRect( iViewLevel,
Indention(), IndentionWidth() );
TPoint position;
if ( AknsUtils::GetControlPosition( this, position ) != KErrNone )
{
position = PositionRelativeToScreen();
}
rect.Move( position );
return rect;
}
else
{
return TRect();
}
}
// ---------------------------------------------------------------------------
// Returns whether the list is set looping.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::IsLooping() const
{
return iFlags.IsSet( EFlagLooping );
}
// ---------------------------------------------------------------------------
// Sets the list to looping or non-looping mode.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetLooping( TBool aLooping )
{
iFlags.Assign( EFlagLooping, aLooping );
}
// ---------------------------------------------------------------------------
// Returns whether the structure lines are set visible.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::StructureLines() const
{
return iFlags.IsSet( EFlagStructureLines ) &&
iFlags.IsSet( EFlagIndention );
}
// ---------------------------------------------------------------------------
// Sets the visibility of structure lines.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetStructureLineVisibility( TBool aVisible )
{
iFlags.Assign( EFlagStructureLines, aVisible );
Window().Invalidate( Rect() );
}
// ---------------------------------------------------------------------------
// Checks whether indention is enabled.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::Indention() const
{
return iFlags.IsSet( EFlagIndention );
}
// ---------------------------------------------------------------------------
// Enables or disables indention of list items.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::EnableIndention( TBool aEnable )
{
iFlags.Assign( EFlagIndention, aEnable );
iMaxViewLevel = aEnable ? iTree.Depth() - 1 : 0;
Window().Invalidate( Rect() );
}
// ---------------------------------------------------------------------------
// Returns the width of single indention step.
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::IndentionWidth() const
{
if ( StructureLines() )
{
return -1;
}
else
{
return iIndentionWidth;
}
}
// ---------------------------------------------------------------------------
// Sets the width of one indention step.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetIndentionWidth( TInt aIndentionWidth )
{
iIndentionWidth = aIndentionWidth;
}
// ---------------------------------------------------------------------------
// Checks whether marking is enabled.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::IsMarkable() const
{
return iFlags.IsSet( EFlagMarkingEnabled );
}
// ---------------------------------------------------------------------------
// Enables or disables the marking of list items.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::EnableMarking( TBool aEnable )
{
iFlags.Assign( EFlagMarkingEnabled, aEnable );
}
// ---------------------------------------------------------------------------
// Sets text for the empty list.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetEmptyTextL(const TDesC& aText)
{
delete iEmptyListText;
iEmptyListText = NULL;
iEmptyListText = aText.AllocL();
UpdateScrollbars();
}
// ---------------------------------------------------------------------------
// InitPhysicsL
// ---------------------------------------------------------------------------
//
void CAknTreeListView::InitPhysicsL()
{
if ( iPhysicsHandler )
{
iPhysicsHandler->InitPhysicsL();
}
}
// ---------------------------------------------------------------------------
// SetHighlight
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetHighlight( CAknTreeItem* aItemToBeFocused,
const TInt& aIndexToBeFocused )
{
if ( aItemToBeFocused )
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
MAknListBoxTfxInternal* transApi = CAknListLoader::TfxApiInternal( iGc );
if ( transApi && !transApi->EffectsDisabled() && !aItemToBeFocused->Node() )
{
transApi->SetMoveType( MAknListBoxTfxInternal::EListTap );
}
#endif
SetFocusedItem( aItemToBeFocused, aIndexToBeFocused, ETrue );
iPreviouslyFocusedItem = aItemToBeFocused;
}
}
// ---------------------------------------------------------------------------
// SelectItem
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SelectItem( CAknTreeItem* aSelectedItem )
{
SelectItem( aSelectedItem, EFalse );
}
// ---------------------------------------------------------------------------
// VisibleItemCount
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::VisibleItemCount() const
{
TInt count( iItems.Count() );
count += KAdditionalItems;
return count;
}
// ---------------------------------------------------------------------------
// SetPressedDownState
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetPressedDownState( const TBool& aPressedDown )
{
iIsPressedDownState = aPressedDown;
}
// ---------------------------------------------------------------------------
// UpdateTreeListView
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateTreeListView( const TInt& aFirstItem,
const TBool& aDrawNow )
{
CAknTreeItem* first = iTree.VisibleItem( aFirstItem );
UpdateVisibleItems( 0, first );
UpdateScrollbars();
UpdateAnimation();
if ( aDrawNow )
{
DrawNow();
}
else
{
Window().Invalidate( Rect() );
}
}
// ---------------------------------------------------------------------------
// Offset
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::Offset() const
{
return iPhysicsHandler->Offset();
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Handles key events.
// ---------------------------------------------------------------------------
//
TKeyResponse CAknTreeListView::OfferKeyEventL( const TKeyEvent& aKeyEvent,
TEventCode aType )
{
TKeyResponse response = EKeyWasNotConsumed;
if ( aType == EEventKey )
{
response = EKeyWasConsumed;
// In single click mode first key press enables highlight
if ( SingleClickEnabled() && !HighlightEnabled() )
{
if ( ( aKeyEvent.iCode == EKeyUpArrow ||
aKeyEvent.iCode == EKeyDownArrow ||
aKeyEvent.iCode == EKeyEnter ||
aKeyEvent.iCode == EKeyOK ) && iItems.Count() )
{
TInt index = FirstVisibleItemIndex();
EnableHighlight( ETrue );
// Check if marquee needs to be enabled
if ( iList.Flags() & KAknTreeListMarqueeScrolling )
{
iTree.EnableMarquee( ETrue );
}
if ( iPhysicsHandler->Offset() == 0 )
{
SetFocusedItem( iItems[0].Item(), index, ETrue );
}
else
{
SetFocusedItem( iItems[0].Item(), index, EFalse );
HandleDownArrowKeyEvent();
}
return EKeyWasConsumed;
}
}
switch ( aKeyEvent.iCode )
{
case EKeyLeftArrow:
{
HandleLeftArrowKeyEvent();
break;
}
case EKeyRightArrow:
{
HandleRightArrowKeyEvent();
break;
}
case EKeyUpArrow:
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
// LISTBOX EFFECTS IMPLEMENTATION
//
// Set type of momement
//
MAknListBoxTfxInternal* transApi = CAknListLoader::TfxApiInternal( iGc );
if ( transApi )
{
transApi->SetMoveType( MAknListBoxTfxInternal::EListMoveUp );
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
HandleUpArrowKeyEvent();
break;
}
case EKeyDownArrow:
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
// LISTBOX EFFECTS IMPLEMENTATION
//
// Set type of momement
//
MAknListBoxTfxInternal* transApi = CAknListLoader::TfxApiInternal( iGc );
if ( transApi )
{
transApi->SetMoveType( MAknListBoxTfxInternal::EListMoveDown );
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
HandleDownArrowKeyEvent();
break;
}
case EKeyEnter: // fall-through intended here
case EKeyOK:
{
// Ignore repeated events.
if ( aKeyEvent.iRepeats == 0 )
{
HandleSelectionKeyEvent();
}
break;
}
default:
response = EKeyWasNotConsumed;
break;
}
}
else if ( aType == EEventKeyDown )
{
if ( aKeyEvent.iScanCode == EStdKeyLeftShift ||
aKeyEvent.iScanCode == EStdKeyRightShift )
{
iFlags.Set( EFlagShiftKeyPressed );
if ( !MarkingOngoing() )
{
BeginMarkingL();
}
response = EKeyWasConsumed;
}
else if ( aKeyEvent.iScanCode == EStdKeyLeftCtrl ||
aKeyEvent.iScanCode == EStdKeyRightCtrl )
{
iFlags.Set( EFlagCtrlKeyPressed );
if ( !MarkingOngoing() )
{
BeginMarkingL();
}
response = EKeyWasConsumed;
}
else if ( aKeyEvent.iScanCode == EStdKeyHash )
{
iFlags.Set( EFlagHashKeyPressed );
if ( !MarkingOngoing() )
{
BeginMarkingL();
}
response = EKeyWasConsumed;
}
}
else if ( aType == EEventKeyUp )
{
const TInt KShiftModifiers =
EModifierLeftShift | EModifierRightShift | EModifierShift;
const TInt KCtrlModifiers =
EModifierLeftCtrl | EModifierRightCtrl | EModifierCtrl;
if ( aKeyEvent.iScanCode == EStdKeyLeftCtrl ||
aKeyEvent.iScanCode == EStdKeyRightCtrl ||
aKeyEvent.iScanCode == EStdKeyLeftShift ||
aKeyEvent.iScanCode == EStdKeyRightShift )
{
if ( !( aKeyEvent.iModifiers & KShiftModifiers ) )
{
iFlags.Clear( EFlagShiftKeyPressed );
}
if ( !( aKeyEvent.iModifiers & KCtrlModifiers ) )
{
iFlags.Clear( EFlagCtrlKeyPressed );
}
if ( iFlags.IsClear( EFlagShiftKeyPressed ) &&
iFlags.IsClear( EFlagCtrlKeyPressed ) &&
iFlags.IsClear( EFlagHashKeyPressed ) &&
MarkingOngoing() )
{
EndMarking();
}
response = EKeyWasConsumed;
}
else if ( aKeyEvent.iScanCode == EStdKeyHash )
{
iFlags.Clear( EFlagHashKeyPressed );
if ( iFlags.IsClear( EFlagShiftKeyPressed ) &&
iFlags.IsClear( EFlagCtrlKeyPressed ) )
{
if ( iFlags.IsClear( EFlagSimultaneousMarking ) )
{
// Item marking is changed when several items have not
// been marked by moving focus while pressing hash key.
if ( FocusedItem() )
{
MarkItem( FocusedItem(), !FocusedItem()->IsMarked(),
ETrue );
}
}
if ( MarkingOngoing() )
{
EndMarking();
}
}
response = EKeyWasConsumed;
}
}
if ( aType == EEventKey )
{
// Check if view offset needs to be restored
iPhysicsHandler->HandleKeyEvent( aKeyEvent.iCode );
}
return response;
}
// ---------------------------------------------------------------------------
// Changes the visibility of the view.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::MakeVisible( TBool aVisible )
{
CAknControl::MakeVisible( aVisible );
if ( aVisible )
{
UpdateScrollbars();
}
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Sets the control's containing window by copying it from aContainer.
// Method also reconstructs the scrollbars for the view. Otherwise, they would
// still be using the previously set, possibly deleted container window.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetContainerWindowL( const CCoeControl& aContainer )
{
if ( iScrollbarFrame )
{
delete iScrollbarFrame;
iScrollbarFrame = NULL;
}
CAknControl::SetContainerWindowL( aContainer );
Window().SetPointerGrab( ETrue );
iScrollbarFrame = new ( ELeave ) CEikScrollBarFrame( this, this );
iScrollbarFrame->CreateDoubleSpanScrollBarsL( EFalse, EFalse );
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Handles changes in resources.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleResourceChange( TInt aType )
{
CAknControl::HandleResourceChange( aType );
if ( aType == KAknsMessageSkinChange )
{
TRAPD( error, CreateAnimationL() )
if ( error )
{
delete iAnimation;
iAnimation = NULL;
}
}
else if ( aType == KEikDynamicLayoutVariantSwitch && FocusedItem() )
{
if ( !FocusedItemVisible() )
{
TInt firstItemIndex = 0;
if ( iItems.Count() && iItems[0].Item() )
{
firstItemIndex = iTree.VisibleItemIndex( iItems[0].Item() );
}
TInt index = 0;
if ( firstItemIndex < iTree.VisibleItemIndex( FocusedItem() ) )
{
index = iItems.Count() - 1;
}
SetFocusedItem( FocusedItem(), index, ETrue );
}
else
{
SetFocusedItem( FocusedItem(), FocusIndex(), ETrue );
// This block moves visible view after layout switch
// if there are not enough items to fill whole screen
TInt visibleItemIndex = iTree.VisibleItemIndex( FocusedItem() );
if ( visibleItemIndex != KErrNotFound)
{
TInt focusedItemIndex = FocusedItemIndex();
if (focusedItemIndex != -1)
{
TInt height = iTree.VisibleItemCount() - visibleItemIndex + focusedItemIndex;
TInt itemCountLimit = iItems.Count();
if ( height < itemCountLimit && height < iTree.VisibleItemCount() )
{
TInt move = itemCountLimit - height;
UpdateVisibleItems( focusedItemIndex + move, FocusedItem() );
}
}
}
// end of block
}
}
else if ( aType == KAknMessageFocusLost && HighlightEnabled() )
{
EnableHighlight( EFalse );
}
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Handles pointer events. Moves the focus on stylus down events to the
// pointed item, and selects the item on stylus up event if the pointed item
// is the same as on stylus down event. Otherwise, the pointed item is set
// focused.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandlePointerEventL( const TPointerEvent& aPointerEvent )
{
if ( iFlags.IsSet( EFlagIgnoreButtonUpEvent )
&& aPointerEvent.iType == TPointerEvent::EButton1Up )
{
return;
}
if ( GrabbingComponent() != NULL )
{
iPhysicsHandler->ResetEventBlockingStatus();
}
else
{
if( aPointerEvent.iType == TPointerEvent::EButton1Down )
{
iPreviouslyFocusedItem = FocusedItem();
}
iPhysicsHandler->HandlePointerEventL( aPointerEvent, iViewLevel,
MarkingOngoing(), iFlags.IsSet( EFlagShiftKeyPressed ),
iFlags.IsSet( EFlagCtrlKeyPressed ) );
}
CAknControl::HandlePointerEventL( aPointerEvent );
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::CountComponentControls() const
{
return iScrollbarFrame ? iScrollbarFrame->CountComponentControls() : NULL;
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// ---------------------------------------------------------------------------
//
CCoeControl* CAknTreeListView::ComponentControl( TInt aIndex ) const
{
return iScrollbarFrame ? iScrollbarFrame->ComponentControl( aIndex ) : NULL;
}
// ---------------------------------------------------------------------------
// From class MEikScrollBarObserver.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleScrollEventL( CEikScrollBar* aScrollBar,
TEikScrollEvent aEventType )
{
__ASSERT_DEBUG( aScrollBar, User::Invariant() );
__ASSERT_DEBUG( iScrollbarFrame, User::Invariant() );
if ( SingleClickEnabled() )
{
EnableHighlight( EFalse );
}
TInt thumbPosition = aScrollBar->ThumbPosition();
if ( AknLayoutUtils::LayoutMirrored() &&
aScrollBar != iScrollbarFrame->VerticalScrollBar() )
{
const TEikScrollBarModel* model = aScrollBar->Model();
thumbPosition = ( model->iScrollSpan - model->iThumbSpan )
- thumbPosition;
}
switch ( aEventType )
{
case EEikScrollThumbReleaseVert:
// Ignored.
break;
case EEikScrollLeft:
case EEikScrollRight:
case EEikScrollPageLeft:
case EEikScrollPageRight:
iViewLevel = thumbPosition;
UpdateScrollbars();
UpdateAnimation();
Window().Invalidate( Rect() );
break;
case EEikScrollThumbDragHoriz:
iViewLevel = thumbPosition;
UpdateAnimation();
Window().Invalidate( Rect() );
break;
case EEikScrollThumbReleaseHoriz:
UpdateScrollbars();
break;
case EEikScrollHome:
// Not in use!
break;
case EEikScrollEnd:
// Not in use!
break;
default:
break;
}
iPhysicsHandler->HandleScrollEventL( aEventType, thumbPosition );
}
// ---------------------------------------------------------------------------
// From class MAknTreeObserver.
// Handles tree events.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleTreeEvent( TEvent aEvent, CAknTreeItem* aItem,
TBool aDrawNow )
{
// Note: max view level is needed only for scrollbar updating
if ( Indention() )
{
switch ( aEvent )
{
case EItemAdded:
case EItemRemoveBegin:
case EItemRemoveEnd:
{
if ( aDrawNow )
{
iMaxViewLevel = iTree.Depth() - 1;
}
break;
}
case EItemMoved:
case ENodeExpanded:
case ENodeCollapsed:
case ETreeSorted:
{
iMaxViewLevel = iTree.Depth() - 1;
break;
}
case EItemModified:
break;
default:
break;
}
}
switch ( aEvent )
{
case EItemAdded:
HandleItemAddedEvent( aItem, aDrawNow );
TRAP_IGNORE( InitPhysicsL() );
break;
case EItemMoved:
HandleItemMovedEvent( aItem );
TRAP_IGNORE( InitPhysicsL() );
break;
case EItemRemoveBegin:
PrepareForItemRemoval( aItem, aDrawNow );
break;
case EItemRemoveEnd:
HandleItemRemovedEvent( aItem, aDrawNow );
TRAP_IGNORE( InitPhysicsL() );
break;
case ENodeExpanded:
HandleNodeExpandedEvent( aItem->Node() );
TRAP_IGNORE( InitPhysicsL() );
break;
case ENodeCollapsed:
HandleNodeCollapsedEvent( aItem->Node() );
TRAP_IGNORE( InitPhysicsL() );
break;
case EItemModified:
HandleItemModifiedEvent( aItem );
break;
case ETreeSorted:
HandleTreeSortedEvent( aDrawNow );
break;
default:
break;
}
if ( aDrawNow )
{
// it should be DrawNow() here for fixing bug JLAI-7UE9RN
DrawNow();
//Window().Invalidate( Rect() );
}
}
// ---------------------------------------------------------------------------
// From class MAknsEffectAnimObserver.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::AnimFrameReady( TInt aError, TInt /*aAnimId*/ )
{
__ASSERT_DEBUG( iAnimation, User::Invariant() );
if ( aError )
{
delete iAnimation;
iAnimation = NULL;
}
else if ( IsFocused() && FocusedItemVisible() )
{
DrawNow( iItems[FocusIndex()].Rect() );
}
else
{
iAnimation->Stop();
}
}
// ---------------------------------------------------------------------------
// From class MEikCommandObserver.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::ProcessCommandL( TInt /*aCommandId*/ )
{
// Any event coming from MSK changes the marking of currently focused
// item, as MSK is being observed only when shift is pressed.
if ( MarkingOngoing() && FocusedItem() )
{
MarkItem( FocusedItem(), !FocusedItem()->IsMarked(), ETrue );
}
}
// ---------------------------------------------------------------------------
// CAknTreeListView::ReportTreeListEvent
// ---------------------------------------------------------------------------
//
void CAknTreeListView::ReportTreeListEvent(
MAknTreeListObserver::TEvent aEvent, TAknTreeItemID aItem )
{
iList.NotifyObservers( aEvent, aItem );
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Handles focus change.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::FocusChanged( TDrawNow aDrawNow )
{
if ( iAnimation )
{
if ( IsFocused() )
{
iAnimation->Start();
}
else
{
iAnimation->Stop();
}
}
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
MAknListBoxTfxInternal *transApi = CAknListLoader::TfxApiInternal( iGc );
if ( aDrawNow || (transApi && !transApi->EffectsDisabled()) )
#else
if (aDrawNow)
#endif //RD_UI_TRANSITION_EFFECTS_LIST
{
Window().Invalidate( Rect() );
}
else if ( IsFocused() && FocusedItemVisible() )
{
TRect rect = iItems[FocusIndex()].HighlightRect( iViewLevel, Indention(), IndentionWidth() );
Window().Invalidate( rect );
}
ReportTreeListEvent( MAknTreeListObserver::EItemFocused,
iTree.Id( FocusedItem() ) );
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Responds to changes to the size and position of this control.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SizeChanged()
{
// Get layout for the view.
LayoutView();
// Update scrollbars.
UpdateScrollbars();
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
UpdateIndexes();
#endif
AknsUtils::RegisterControlPosition( this, PositionRelativeToScreen() );
TRAP_IGNORE( InitPhysicsL() );
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Responds to changes in the position of a control.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::PositionChanged()
{
AknsUtils::RegisterControlPosition( this, PositionRelativeToScreen() );
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Retrieves an object of the same type as that encapsulated in aId.
// ---------------------------------------------------------------------------
//
TTypeUid::Ptr CAknTreeListView::MopSupplyObject( TTypeUid aId )
{
return CAknControl::MopSupplyObject( aId );
}
// ---------------------------------------------------------------------------
// C++ constructor.
// ---------------------------------------------------------------------------
//
CAknTreeListView::CAknTreeListView( CAknTree& aTree, CAknTreeList& aList )
: iTree( aTree ),
iList( aList ),
iItems( KVisibleItemsArrayGranularity ),
iViewLevel( 0 ),
iMaxViewLevel( 0 ),
iStylusDownItemIndex( -1 ),
iAnimationIID( KAknsIIDQsnAnimList ),
iIndentionWidth( -1 ),
iPhysicsHandler( NULL ),
iScrollPhysicsTop( ETrue )
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
,iGc(NULL)
#endif //RD_UI_TRANSITION_EFFECTS_LIST
,iItemActionMenu( NULL ),
iLongTapDetector( NULL )
{
if ( static_cast<CAknAppUi*>(
iCoeEnv->AppUi() )->IsSingleClickCompatible() )
{
iFlags.Set( EFlagSingleClickEnabled );
}
iFlags.Set( EFlagStructureLines );
iFlags.Set( EFlagIndention );
}
// ---------------------------------------------------------------------------
// Second phase constructor.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::ConstructL( const CCoeControl& aContainer )
{
// Get the empty list text from resources.
TResourceReader reader;
CEikonEnv::Static()->CreateResourceReaderLC( reader,
R_AVKON_LISTBOX_DEFAULT_EMPTY_TEXT );
iEmptyListText = reader.ReadHBufCL();
CleanupStack::PopAndDestroy(); // reader
// Setting container window also constructs scrollbars for the view.
SetContainerWindowL( aContainer );
// Construct highlight animation for the view.
TRAPD( error, CreateAnimationL() )
if ( error )
{
delete iAnimation;
iAnimation = NULL;
}
// Long press timer for markable list.
iLongPressTimer = CPeriodic::NewL( CActive::EPriorityStandard );
if ( !iPhysicsHandler )
{
iPhysicsHandler = CAknTreeListPhysicsHandler::NewL( this,
&iTree,
&iItems );
}
iIsPressedDownState = EFalse;
iIsDragged = EFalse;
iItemActionMenu = CAknItemActionMenu::RegisterCollectionL( *this );
if ( iItemActionMenu )
{
iLongTapDetector = CAknLongTapDetector::NewL( this );
}
if ( SingleClickEnabled() )
{
EnableHighlight( EFalse );
}
else
{
EnableHighlight( ETrue );
}
}
// ---------------------------------------------------------------------------
// Handles an addition of new item into tree list. The focused item is kept
// in the same position of the view, and the set of tree items in the view is
// modified to contain the added item when necessary.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleItemAddedEvent( CAknTreeItem* /*aItem*/, TBool aDrawNow )
{
UpdateVisibleItems();
if (aDrawNow)
{
UpdateScrollbars();
}
}
// ---------------------------------------------------------------------------
// Handles the movement of a tree item. Movement of focused item has to be
// handled as a special case.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleItemMovedEvent( CAknTreeItem* /*aItem*/ )
{
// Note: This method cannot deduce, which items in the view have actually
// been changed, unless the it receives information from where the
// specified item was moved.
UpdateVisibleItems();
UpdateScrollbars();
}
// ---------------------------------------------------------------------------
// Prepares view for the item removal by moving the focus from the removed
// item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::PrepareForItemRemoval( CAknTreeItem* aItem, TBool /*aDrawNow*/ )
{
__ASSERT_DEBUG( aItem, User::Invariant() );
if ( FocusedItem() == aItem )
{
TAknTreeIterator iterator = iTree.Iterator();
CAknTreeItem* currentItem = FocusedItem();
iterator.SetCurrent( currentItem );
if ( iterator.HasNext() )
{
// if next item with same parent exists, set focus to it
CAknTreeItem* nextItem = iterator.Next();
if ( currentItem->Parent() == nextItem->Parent() )
{
SetFocusedItem( nextItem );
return;
}
}
iterator.SetCurrent( currentItem );
if ( iterator.HasPrevious() )
{
// otherwise if previous item exists, set focus to it
SetFocusedItem( iterator.Previous() );
SetFocusIndex( FocusIndex() - 1 );
}
else
{
// no focus
SetFocusedItem( NULL );
SetFocusIndex( KMinTInt );
}
}
}
// ---------------------------------------------------------------------------
// Handles the removal of a tree item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleItemRemovedEvent( CAknTreeItem* /*aItem*/, TBool aDrawNow )
{
UpdateVisibleItems();
if (aDrawNow)
{
UpdateScrollbars();
}
}
// ---------------------------------------------------------------------------
// Handles an expansion of a tree node. If the expanded node is focused, it is
// moved upwards in the view enough to make its currently expanded content
// visible.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleNodeExpandedEvent( CAknTreeNode* aNode )
{
if ( FocusedItem() == aNode )
{
TInt count = aNode->VisibleDescendantCount();
TInt index = Min( Max( FocusIndex(), 0 ),
Max( ( iItems.Count() - count ) - 1, 0 ) );
UpdateVisibleItems( index, aNode );
}
else
{
UpdateVisibleItems();
}
UpdateScrollbars();
}
// ---------------------------------------------------------------------------
// Handles a collapse of a tree node. If one of the items in collapsed node
// is focused, the focus has to be moved to collapsed node.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleNodeCollapsedEvent( CAknTreeNode* aNode )
{
__ASSERT_DEBUG( aNode, User::Invariant() );
if ( FocusedItem() && FocusedItem() != aNode )
{
TAknTreeIterator iterator = iTree.Iterator();
iterator.SetCurrent( aNode );
// Get next visible item after collapsed node.
CAknTreeItem* next = iterator.Next();
TInt collapsedIndex = iTree.ItemIndex( aNode );
TInt focusedIndex = iTree.ItemIndex( FocusedItem() );
if ( focusedIndex > collapsedIndex )
{
if ( !next || iTree.ItemIndex( next ) > focusedIndex )
{
// Move focus to collapsed node from its descendant.
SetFocusedItem( aNode, FocusIndex(), EFalse );
}
}
}
else if ( FocusedItem() && FocusedItem() == aNode && !FocusedItemVisible() )
{
// If focused node is not visible, adjust the items so that it becomes
// visible
UpdateViewItemAsVisible( aNode );
}
UpdateVisibleItems();
UpdateScrollbars();
}
// ---------------------------------------------------------------------------
// Handles a change in tree item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleItemModifiedEvent( CAknTreeItem* /*aItem*/ )
{
}
// ---------------------------------------------------------------------------
// Sets the items to the view from the beginning of the list after the
// tree has been sorted.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleTreeSortedEvent( TBool aDrawNow )
{
if ( iFlags.IsClear( EFlagSaveFocusAfterSorting) )
{
TInt count = iItems.Count();
if ( count > 0)
{
TAknTreeIterator iterator = iTree.Iterator();
for ( TInt ii = 0; ii < count; ++ii )
{
iItems[ii].SetItem( iterator.Next() );
}
SetFocusIndex( 0 );
SetFocusedItem( iItems[0].Item() );
}
else
{
SetFocusIndex( KMinTInt );
SetFocusedItem( NULL );
}
}
else
{
TInt count = iItems.Count();
if ( count > 0)
{
TAknTreeIterator iterator = iTree.Iterator();
for ( TInt ii = 0; ii < count; ++ii )
{
iItems[ii].SetItem( iterator.Next() );
}
}
}
if ( aDrawNow )
{
UpdateScrollbars();
}
}
// ---------------------------------------------------------------------------
// Updates the view items so that the specified item is located at the
// specified location of the view. The index is adjusted so that the
// beginning of the list is not left empty.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateVisibleItems( TInt aIndex, CAknTreeItem* aItem )
{
SetFocusIndex( KMinTInt );
if ( !iItems.Count() )
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
UpdateIndexes();
#endif
return;
}
TInt index = Min( aIndex, iTree.VisibleItemIndex( aItem ) );
TAknTreeIterator iterator = iTree.Iterator();
if ( index < 0 || index > iItems.Count() || !aItem )
{
index = 0;
aItem = iterator.Next();
}
iItems[index].SetItem( aItem );
if ( aItem == FocusedItem() )
{
SetFocusIndex( index );
}
iterator.SetCurrent( aItem );
for ( TInt ii = index - 1; ii >= 0; --ii )
{
iItems[ii].SetItem( iterator.Previous() );
if ( iItems[ii].Item() == FocusedItem() )
{
SetFocusIndex( ii );
}
}
iterator.SetCurrent( aItem );
for ( TInt ii = index + 1; ii < iItems.Count(); ++ii )
{
iItems[ii].SetItem( iterator.Next() );
if ( iItems[ii].Item() == FocusedItem() )
{
SetFocusIndex( ii );
}
}
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
UpdateIndexes();
#endif
}
// ---------------------------------------------------------------------------
// Updates the view items so that the focused item remains in the same
// position unless the list contains fewer items the view can contain.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateVisibleItems()
{
// Set the first item in the list focused, if no item is focused.
if ( !FocusedItem() )
{
TAknTreeIterator iterator = iTree.Iterator();
if ( iterator.HasNext() )
{
SetFocusedItem( iterator.Next() );
SetFocusIndex( KMinTInt );
iPreviouslyFocusedItem = FocusedItem();
}
}
// Number of items in the expanded part of the tree.
const TInt itemCount = iTree.VisibleItemCount();
// Update the set of items in the view.
if ( itemCount <= iItems.Count() )
{
// Set the tree items in the beginning of the view.
TAknTreeIterator iterator = iTree.Iterator();
CAknTreeItem* item = iterator.Next();
SetFocusIndex( KMinTInt );
for ( TInt ii = 0; ii < iItems.Count(); ++ii )
{
iItems[ii].SetItem( item );
if ( item )
{
if ( item == FocusedItem() )
{
SetFocusIndex( ii );
}
item = iterator.Next();
}
}
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
UpdateIndexes();
#endif
}
else if ( itemCount && iItems.Count() )
{
if ( FocusedItemVisible() )
{
// Keep the focused item in position, if possible.
UpdateVisibleItems( FocusIndex(), FocusedItem() );
}
else if ( iItems[0].Item() )
{
// Keep the first item in position, if possible.
UpdateVisibleItems( 0, iItems[0].Item() );
}
else
{
// Set items to the view from the beginning of the list.
UpdateVisibleItems( 0, iTree.VisibleItem( 0 ) );
}
}
}
// ---------------------------------------------------------------------------
// Handles the selection key by marking the item, if marking is ongoing, or
// otherwise selecting the focused item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleSelectionKeyEvent()
{
CAknTreeItem* item = FocusedItem();
if ( item )
{
if ( MarkingOngoing() )
{
MarkItem( item, !item->IsMarked(), ETrue );
}
else
{
SelectItem( item, true );
}
}
}
// ---------------------------------------------------------------------------
// Handles right arrow key event.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleRightArrowKeyEvent()
{
if ( AknLayoutUtils::LayoutMirrored() )
{
AscendFocus();
}
else
{
DescendFocus();
}
}
// ---------------------------------------------------------------------------
// Handles left arrow key event.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleLeftArrowKeyEvent()
{
if ( AknLayoutUtils::LayoutMirrored() )
{
DescendFocus();
}
else
{
AscendFocus();
}
}
// ---------------------------------------------------------------------------
// Handles up arrow key event by moving focus upwards. If the focus is already
// in the top-most item of the list and the list is set looping, the focus is
// moved to the bottom-most item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleUpArrowKeyEvent()
{
if ( iFlags.IsClear( EFlagSimultaneousMarking ) &&
( iFlags.IsSet( EFlagMark ) || iFlags.IsSet( EFlagUnmark ) ) )
{
MarkItem( FocusedItem(), iFlags.IsSet( EFlagMark ), ETrue );
iFlags.Set( EFlagSimultaneousMarking );
}
TAknTreeIterator iterator = iTree.Iterator();
iterator.SetCurrent( FocusedItem() );
TInt index = LastVisibleItemIndex();
if ( iterator.HasPrevious() )
{
if ( FocusedItemVisible() )
{
index = Min(
Max( FocusIndex() - 1, FirstVisibleItemIndex() ), index );
}
else
{
__ASSERT_DEBUG( iItems.Count(), User::Invariant() );
TInt firstIndex = iTree.VisibleItemIndex( iItems[0].Item() );
if ( firstIndex > iTree.VisibleItemIndex( FocusedItem() ) )
{
index = FirstVisibleItemIndex();
}
}
SetFocusedItem( iterator.Previous(), index, ETrue );
}
else if ( IsLooping() )
{
// Move focus to the bottom-most item in the list.
SetFocusedItem( iterator.Last(), index, ETrue );
}
if ( iFlags.IsSet( EFlagSimultaneousMarking ) )
{
MarkItem( FocusedItem(), iFlags.IsSet( EFlagMark ), ETrue );
}
}
// ---------------------------------------------------------------------------
// Handles down arrow key event by moving focus downwards. If the focus is
// already in the bottom-most item of the list and the list is set looping,
// the focus is moved to the top-most item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleDownArrowKeyEvent()
{
if ( iFlags.IsClear( EFlagSimultaneousMarking ) &&
( iFlags.IsSet( EFlagMark ) || iFlags.IsSet( EFlagUnmark ) ) )
{
MarkItem( FocusedItem(), iFlags.IsSet( EFlagMark ), ETrue );
iFlags.Set( EFlagSimultaneousMarking );
}
TAknTreeIterator iterator = iTree.Iterator();
iterator.SetCurrent( FocusedItem() );
TInt index = FirstVisibleItemIndex();
if ( iterator.HasNext() )
{
if ( FocusedItemVisible() )
{
index = Min( Max( FocusIndex() + 1, 0 ), LastVisibleItemIndex() );
}
else
{
__ASSERT_DEBUG( iItems.Count(), User::Invariant() );
TInt firstIndex = iTree.VisibleItemIndex( iItems[0].Item() );
if ( firstIndex < iTree.VisibleItemIndex( FocusedItem() ) )
{
index = LastVisibleItemIndex();
}
}
SetFocusedItem( iterator.Next(), index, ETrue );
}
else if ( IsLooping() )
{
// Move focus to the top-most item in the list.
SetFocusedItem( iterator.First(), index, ETrue );
}
if ( iFlags.IsSet( EFlagSimultaneousMarking ) )
{
MarkItem( FocusedItem(), iFlags.IsSet( EFlagMark ), ETrue );
}
}
// ---------------------------------------------------------------------------
// Moves focus deeper in the tree hierarchy. This is done by expanding the
// focused item, if it is a collapsed node; or moving focus to the first child
// of the item, if the item is an expanded node.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::DescendFocus()
{
if ( FocusedItem() )
{
CAknTreeNode* node = FocusedItem()->Node();
if ( node )
{
if ( node->IsExpanded() )
{
if ( node->ChildCount() )
{
HandleDownArrowKeyEvent();
}
}
else
{
iTree.ExpandNode( iTree.Id( node ), ETrue );
}
}
}
}
// ---------------------------------------------------------------------------
// Moves focus higher in the tree hierarchy. This is done by collapsing the
// focused item, if it is an expanded node; or moving focus to the item's
// parent, if the item is a collapsed node or a leaf.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::AscendFocus()
{
if ( FocusedItem() )
{
CAknTreeNode* node = FocusedItem()->Node();
if ( node && node->IsExpanded() )
{
iTree.CollapseNode( iTree.Id( node ), ETrue );
}
else
{
CAknTreeNode* parent = FocusedItem()->Parent();
if ( parent && iTree.Id( parent ) != KAknTreeIIDRoot )
{
TInt index = 0;
for ( TInt ii = 0; ii < iItems.Count(); ++ii )
{
if ( iItems[ii].Item() == parent )
{
index = ii;
break;
}
}
SetFocusedItem( parent, index, ETrue );
if ( iFlags.IsSet( EFlagMark ) || iFlags.IsSet( EFlagUnmark ) )
{
MarkItem( parent, iFlags.IsSet( EFlagMark ), ETrue );
iFlags.Set( EFlagSimultaneousMarking );
}
}
}
}
}
// ---------------------------------------------------------------------------
// Checks whether the list view is empty.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::IsEmpty() const
{
for ( TInt ii = 0; ii < iItems.Count(); ++ii )
{
if ( iItems[ii].Item() )
{
// Item found, list is not empty.
return EFalse;
}
}
return ETrue;
}
// ---------------------------------------------------------------------------
// Sets the layout for the view from the layout data.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::LayoutView()
{
// Subpane for list and scroll bar.
TInt subpaneVariety = 0; // No find.
TRect subpaneRect = RectFromLayout( Rect(),
AknLayoutScalable_Avkon::listscroll_gen_pane( subpaneVariety ) );
// Check scrollbar visibilities to get correct variety for list pane.
TInt listPaneVariety = 1; // No scrollbars.
if ( iScrollbarFrame )
{
TBool hScrollbar = iScrollbarFrame->ScrollBarVisibility(
CEikScrollBar::EHorizontal ) != CEikScrollBarFrame::EOff;
TBool vScrollbar = iScrollbarFrame->ScrollBarVisibility(
CEikScrollBar::EVertical ) != CEikScrollBarFrame::EOff;
// Set list pane variety depending on scrollbar visibilities.
if ( vScrollbar && hScrollbar )
{
listPaneVariety = 4;
}
else if ( vScrollbar )
{
listPaneVariety = 0;
}
else if ( hScrollbar )
{
listPaneVariety = 3;
}
// Layout scrollbars.
TInt sbVariety = vScrollbar ? 2 : 1; // horizontal scrollbar variety
AknLayoutUtils::LayoutHorizontalScrollBar( iScrollbarFrame, subpaneRect,
AknLayoutScalable_Avkon::scroll_pane( sbVariety ).LayoutLine() );
if ( hScrollbar )
{
AknLayoutUtils::LayoutVerticalScrollBar( iScrollbarFrame, subpaneRect,
AknLayoutScalable_Avkon::scroll_pane_cp14().LayoutLine() );
}
else
{
sbVariety = 0; // vertical scrollbar variety
AknLayoutUtils::LayoutVerticalScrollBar( iScrollbarFrame, subpaneRect,
AknLayoutScalable_Avkon::scroll_pane( sbVariety ).LayoutLine() );
}
}
// List.
TRect listRect = RectFromLayout( subpaneRect,
AknLayoutScalable_Avkon::list_gen_pane( listPaneVariety ) );
// Hierarchial list item.
TInt itemVariety = 0;
TRect itemRect = RectFromLayout( listRect,
AknLayoutScalable_Avkon::list_single_graphic_hl_pane( itemVariety ) );
// Rect for structure line element.
TInt lineVariety = 0; // Type.
TRect lineSegmentRect = RectFromLayout( itemRect,
AknLayoutScalable_Avkon::list_single_graphic_hl_pane_g1( lineVariety ) );
// Minimum item width.
TRect minimumItemRect = RectFromLayout( itemRect,
AknLayoutScalable_Avkon::aid_size_min_hl_cp1() );
// Calculate horizontal view span, which can be negative when items of
// minimum width do not fit within the view.
iHorizontalViewSpan = ( itemRect.Width() - minimumItemRect.Width() ) /
lineSegmentRect.Width();
// Count the maximum number of visible items for the new size.
TInt itemCountLimit = Max( 0, listRect.Height() / itemRect.Height() );
itemCountLimit += KAdditionalItems;
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
iItemCountLimit = itemCountLimit;
#endif
if ( iItems.Count() > itemCountLimit )
{
// Remove items from the view.
for ( TInt ii = iItems.Count() - 1; ii >= itemCountLimit; --ii )
{
iItems.Remove( ii );
}
}
else
{
// Add items to the view.
for ( TInt ii = iItems.Count(); ii < itemCountLimit; ++ii )
{
// This should not fail, if enough space was reserved for the
// array, and if it fails, it results only fewer items being
// shown in the list.
iItems.Append( TAknTreeListViewItem() );
}
}
// Get iterator and set it to point at the first item in the view, or at
// the first item in the list, if the view does not contain any items.
TAknTreeIterator iterator = iTree.Iterator();
CAknTreeItem* first = iItems.Count() ? iItems[0].Item() : NULL;
if ( first )
{
iterator.SetCurrent( first );
iterator.Previous();
}
// Update items and their rectangles.
for ( TInt ii = 0; ii < iItems.Count(); ++ii )
{
CAknTreeItem* item = iterator.Next();
iItems[ii].SetItem( item );
iItems[ii].SetRect( itemRect );
itemRect.Move( 0, itemRect.Height() );
// this is needed also when feature is not enabled
iItems[ii].SetView( this );
if ( item && FocusedItem() == item )
{
SetFocusIndex( ii );
}
}
TRect viewRect( listRect );
// Fill whole control area with list items when physics enabled
// and threre is no horizontal scrollbar.
if ( iScrollbarFrame &&
iScrollbarFrame->ScrollBarVisibility( CEikScrollBar::EHorizontal ) != CEikScrollBarFrame::EOn &&
viewRect.Height() < Rect().Height() )
{
viewRect.iTl.iY = Rect().iTl.iY;
viewRect.iBr.iY = Rect().iBr.iY;
}
iPhysicsHandler->SetViewRect( viewRect );
iPhysicsHandler->SetItemHeight( itemRect.Height() );
TRAP_IGNORE( InitPhysicsL() );
}
// ---------------------------------------------------------------------------
// Updates the span, thumb size and position for both of the scrollbars. New
// layout for the view is applied, if the visibility of either of the
// scrollbars changes.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateScrollbars()
{
if ( iScrollbarFrame )
{
iPhysicsHandler->UpdateScrollIndex( iScrollPhysicsTop );
iScrollPhysicsTop = ETrue;
// Get values for horizontal scrollbar.
TInt hThumbPos = iViewLevel;
TInt hThumbSpan = iHorizontalViewSpan;
TInt hScrollSpan = Max( hThumbPos + hThumbSpan, iMaxViewLevel );
if ( iHorizontalViewSpan <= 1 && iItems.Count() )
{
TInt a = iItems[0].Rect().Width();
TInt b = iItems[0].LineSegmentRect( 0 ).Width();
TInt c = iItems[0].ItemRect( iViewLevel, Indention(),
IndentionWidth() ).Width();
hThumbSpan = a/b;
hScrollSpan = Max( hThumbPos + hThumbSpan, c/b );
}
if ( AknLayoutUtils::LayoutMirrored() )
{
hThumbPos = hScrollSpan - ( hThumbPos + hThumbSpan );
}
TEikScrollBarModel hModel( hScrollSpan, hThumbSpan, hThumbPos );
// Values for empty vertical scrollbar.
TInt vThumbSpan( 10 ); // nonzero value is needed to draw "empty scrollbar"
TInt vThumbPos( 0 );
TInt vScrollSpan( 0 );
TAknTreeIterator iterator = iTree.Iterator();
if ( iterator.HasNext() )
{
iPhysicsHandler->GetVScrollbarParams( vThumbSpan,
vThumbPos,
vScrollSpan );
}
TEikScrollBarModel vModel( vScrollSpan, vThumbSpan, vThumbPos );
// Change visibilities when necessary.
CEikScrollBarFrame::TScrollBarVisibility hVisibility =
CEikScrollBarFrame::EOn;
CEikScrollBarFrame::TScrollBarVisibility vVisibility =
CEikScrollBarFrame::EOn;
if ( iMaxViewLevel <= iHorizontalViewSpan )
{
hVisibility = CEikScrollBarFrame::EOff;
// when horizontal scrollbar not visible, adjust view to left
iViewLevel = 0;
}
if ( hVisibility != iScrollbarFrame->ScrollBarVisibility(
CEikScrollBar::EHorizontal ) ||
vVisibility != iScrollbarFrame->ScrollBarVisibility(
CEikScrollBar::EVertical ) )
{
TRAP_IGNORE( iScrollbarFrame->SetScrollBarVisibilityL(
hVisibility, vVisibility ) );
// Set new model for scrollbars.
iScrollbarFrame->Tile( &hModel, &vModel );
LayoutView();
UpdateScrollbars(); // Recursion
// Update animation in case that scrollbar visibility change
// has affected the highlight size of focused item.
UpdateAnimation();
}
else
{
// Set new model for scrollbars.
iScrollbarFrame->Tile( &hModel, &vModel );
}
}
}
// ---------------------------------------------------------------------------
// Adjusts the horizontal position of the view items. The adjustment is made
// so that the beginning of the focused item is visible, including one
// indention segment in front of the item, if it has such, and if possible,
// the visible item width exeeds the specified minimum width.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateViewLevel()
{
if ( FocusedItemVisible() )
{
__ASSERT_DEBUG( FocusedItem(), User::Invariant() );
// Adjust view's horizontal position.
TInt itemLevel = Indention() ? FocusedItem()->Level() : 1;
TInt maxViewLevel = Max( itemLevel - 2, 0 );
if ( iViewLevel > maxViewLevel )
{
// The beginning of the focused item is not seen, move the view
// so that the beginning of focused item and possibly one
// indention segment in front of it can be seen.
iViewLevel = maxViewLevel;
}
else if ( iViewLevel < maxViewLevel )
{
// View is moved until the visible part of the item exeeds the
// specified minimum, and if the minimum cannot be exeeded, the
// beginning of the item has to remain visible.
TAknTreeListViewItem viewItem = iItems[FocusIndex()];
TInt minimumWidth = FocusedItem()->MinimumSize().iWidth;
TInt indentCount = ( itemLevel - 1 ) - iViewLevel;
TInt lineWidth = viewItem.Rect().Width();
TInt indentWidth = ( IndentionWidth() < 0 ) ?
viewItem.LineSegmentWidth() : IndentionWidth();
TInt itemWidth = lineWidth - indentCount * indentWidth;
while ( itemWidth < minimumWidth && iViewLevel < maxViewLevel )
{
iViewLevel += 1;
itemWidth += indentWidth;
}
}
}
}
// ---------------------------------------------------------------------------
// Updates the highlight animation.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::UpdateAnimation() const
{
if ( FocusedItemVisible() && iAnimation )
{
TRect rect = iItems[FocusIndex()].HighlightRect( iViewLevel,
Indention(), IndentionWidth() );
return UpdateAnimation( rect );
}
return EFalse;
}
TBool CAknTreeListView::UpdateAnimation( const TRect& aRect ) const
{
if ( !iAnimation )
{
return EFalse;
}
if ( iAnimation->Size() != aRect.Size() || iAnimation->NeedsInputLayer() )
{
iFlags.Clear( EFlagUpdateBackground );
TRAPD( error, ResizeAnimationL( aRect.Size(), ETrue ) )
if ( error )
{
delete iAnimation;
iAnimation = NULL;
return EFalse;
}
}
else if ( iFlags.IsSet( EFlagUpdateBackground ) )
{
iFlags.Clear( EFlagUpdateBackground );
if ( iAnimation->InputRgbGc() )
{
DrawHighlightBackground( *iAnimation->InputRgbGc() );
if ( iAnimation->UpdateOutput() != KErrNone )
{
delete iAnimation;
iAnimation = NULL;
return EFalse;
}
}
}
return ETrue;
}
// ---------------------------------------------------------------------------
// Sets focused item.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetFocusedItem( CAknTreeItem* aFocusedItem )
{
if ( iAnimation )
{
if ( !iFocusedItem && aFocusedItem )
{
iAnimation->Start();
}
else if ( !aFocusedItem )
{
iAnimation->Stop();
}
}
if ( iFocusedItem != aFocusedItem )
{
iFocusedItem = aFocusedItem;
// Although the focused item is changed even though the list itself
// is not focused, the client is notified of focus change only when
// list is set focused.
if ( IsFocused() )
{
ReportTreeListEvent( MAknTreeListObserver::EItemFocused,
iTree.Id( iFocusedItem ) );
}
}
}
// ---------------------------------------------------------------------------
// Checks whether the focused item is currently visible.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::FocusedItemVisible() const
{
if ( iFocusedItem && iFocusedItemIndex >= 0 &&
iFocusedItemIndex < iItems.Count() )
{
if ( iPhysicsHandler->FocusedItemVisible( iFocusedItemIndex ) )
{
return ETrue;
}
}
return EFalse;
}
// ---------------------------------------------------------------------------
// Sets the focused item index.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetFocusIndex( TInt aIndex )
{
if ( iFocusedItemIndex != aIndex )
{
iFocusedItemIndex = aIndex;
iFlags.Set( EFlagUpdateBackground );
if ( iAnimation )
{
if ( aIndex >= 0 && aIndex < iItems.Count() )
{
iAnimation->Continue();
}
else
{
iAnimation->Pause();
}
}
}
}
// ---------------------------------------------------------------------------
// Return the index of focused item.
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::FocusIndex() const
{
return iFocusedItemIndex;
}
// ---------------------------------------------------------------------------
// Creates highlight animation for the list view.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::CreateAnimationL()
{
delete iAnimation; iAnimation = NULL;
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
MAknListBoxTfxInternal *transApi = CAknListLoader::TfxApiInternal( iGc );
if ( transApi && transApi->VerifyKml() == KErrNone )
{
return;
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
iAnimation = CAknsEffectAnim::NewL( this );
if ( !iAnimation->ConstructFromSkinL( iAnimationIID ) )
{
User::Leave( KErrNotFound );
}
}
// ---------------------------------------------------------------------------
// Draws animation background to given graphic context.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::DrawHighlightBackground( CFbsBitGc& aGc ) const
{
if ( iAnimation && FocusedItemVisible() )
{
TRect rect = iItems[FocusIndex()].HighlightRect( iViewLevel,
Indention(), IndentionWidth() );
MAknsControlContext* cc = AknsDrawUtils::ControlContext( this );
return AknsDrawUtils::DrawBackground( AknsUtils::SkinInstance(), cc,
this, aGc, TPoint(), rect, KAknsDrawParamBottomLevelRGBOnly );
}
return EFalse;
}
// ---------------------------------------------------------------------------
// Resize animation.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::ResizeAnimationL( const TSize& aHighlightSize,
TBool aAboutToStart ) const
{
iAnimation->BeginConfigInputLayersL( aHighlightSize, aAboutToStart );
if ( iAnimation->InputRgbGc() )
{
DrawHighlightBackground( *iAnimation->InputRgbGc() );
}
iAnimation->EndConfigInputLayersL();
}
// ---------------------------------------------------------------------------
// Draws animation.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::DrawAnimation( CBitmapContext& aGc,
const TRect& aRect ) const
{
if ( !UpdateAnimation( aRect ) )
{
return EFalse;
}
return iAnimation->Render( aGc, aRect );
}
// ---------------------------------------------------------------------------
// Draws highlight to the given rectangle.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::DrawHighlight( CWindowGc& aGc,
const TRect& aRect, TBool aPressedDown ) const
{
TRect newRect( aRect );
newRect.iBr.iY -= Offset();
newRect.iTl.iY -= Offset();
TAknLayoutRect tlRect;
tlRect.LayoutRect( newRect,
SkinLayout::List_highlight_skin_placing__general__Line_2() );
TAknLayoutRect brRect;
brRect.LayoutRect( newRect,
SkinLayout::List_highlight_skin_placing__general__Line_5() );
TRect outerRect( tlRect.Rect().iTl, brRect.Rect().iBr );
TRect innerRect( tlRect.Rect().iBr, brRect.Rect().iTl );
// No pressed highlight if single click enabled
if ( SingleClickEnabled() )
{
aPressedDown = EFalse;
}
MAknsSkinInstance* skin = AknsUtils::SkinInstance();
AknsDrawUtils::DrawFrame( skin, aGc, outerRect, innerRect,
aPressedDown ?
KAknsIIDQsnFrListPressed : KAknsIIDQsnFrList,
KAknsIIDDefault );
}
// ---------------------------------------------------------------------------
// Handles selection of the specified item. If the item is collapsed node, it
// is expande; if the item is expanded node, it is collapsed; or if it is a
// leaf, the selection event is sent to observers of the list.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SelectItem( CAknTreeItem* aItem, bool aKeyPressed )
{
__ASSERT_DEBUG( aItem, User::Invariant() );
CAknTreeNode* node = aItem->Node();
if ( node )
{
if ( node->IsExpanded() )
{
iTree.CollapseNode( iTree.Id( node ), ETrue );
}
else
{
iTree.ExpandNode( iTree.Id( node ), ETrue );
}
}
else if ( aKeyPressed || iPreviouslyFocusedItem == aItem
|| SingleClickEnabled() )
{
// Notify client of selection event.
ReportTreeListEvent( MAknTreeListObserver::EItemSelected,
iTree.Id( aItem ) );
}
}
// ---------------------------------------------------------------------------
// Changes the marking of specified item, when marking is enabled.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::MarkItem( CAknTreeItem* aItem, TBool aMarked,
TBool aDrawNow )
{
if ( iFlags.IsSet( EFlagMarkingEnabled ) )
{
TAknTreeItemID item = iTree.Id( aItem );
if ( item != KAknTreeIIDNone )
{
iTree.SetMarked( item, aMarked, aDrawNow );
if ( FocusedItem() == aItem )
{
UpdateMSKCommand();
}
}
}
}
// ---------------------------------------------------------------------------
// Changes the marking of specified items, when marking is enabled.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::MarkItems( CAknTreeItem* aFirst, CAknTreeItem* aLast,
TBool aMarked, TBool aDrawNow )
{
if ( iFlags.IsSet( EFlagMarkingEnabled ) )
{
TAknTreeIterator iterator = iTree.Iterator();
TInt first = iTree.VisibleItemIndex( aFirst );
TInt last = iTree.VisibleItemIndex( aLast );
if ( first != KErrNotFound && last != KErrNotFound )
{
TAknTreeIterator iterator = iTree.Iterator();
CAknTreeItem* item = NULL;
if ( first < last )
{
item = aFirst;
iterator.SetCurrent( aFirst );
}
else
{
item = aLast;
iterator.SetCurrent( aLast );
aLast = aFirst;
}
while ( item && item != aLast && iterator.HasNext() )
{
MarkItem( item, aMarked, EFalse );
item = iterator.Next();
}
MarkItem( aLast, aMarked, aDrawNow );
}
}
}
// ---------------------------------------------------------------------------
// Begins marking.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::BeginMarkingL()
{
__ASSERT_DEBUG( iFlags.IsClear( EFlagUnmark ), User::Invariant() );
__ASSERT_DEBUG( iFlags.IsClear( EFlagMark ), User::Invariant() );
if ( iFlags.IsSet( EFlagMarkingEnabled ) && FocusedItem() )
{
if ( FocusedItem()->IsMarked() )
{
iFlags.Set( EFlagUnmark );
}
else
{
iFlags.Set( EFlagMark );
}
// Start long press timer to enable marking mode after delay.
StartLongPressTimerL();
// Set view as cba observer.
CEikButtonGroupContainer* cba;
MopGetObject( cba );
CAknEnv::Static()->RequestCommandMediationL( *cba, *this );
}
}
// ---------------------------------------------------------------------------
// Ends ongoing marking.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::EndMarking()
{
__ASSERT_DEBUG( iFlags.IsSet( EFlagMark ) || iFlags.IsSet( EFlagUnmark ),
User::Invariant() );
// Stop long press timer.
if ( iLongPressTimer && iLongPressTimer->IsActive() )
{
iLongPressTimer->Cancel();
}
// Exits marking mode.
if ( iFlags.IsSet( EFlagMarkingMode ) )
{
ExitMarkingMode();
}
// Remove MSK observer.
CEikButtonGroupContainer* cba;
MopGetObject( cba );
CAknEnv::Static()->EndCommandMediation( *this );
iFlags.Clear( EFlagMark );
iFlags.Clear( EFlagUnmark );
iFlags.Clear( EFlagSimultaneousMarking );
}
// ---------------------------------------------------------------------------
// Checks whether marking is currently ongoing.
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::MarkingOngoing() const
{
return iFlags.IsSet( EFlagUnmark ) || iFlags.IsSet( EFlagMark );
}
// ---------------------------------------------------------------------------
// Starts the long press timer.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::StartLongPressTimerL()
{
if ( iLongPressTimer )
{
if ( iLongPressTimer->IsActive() )
{
iLongPressTimer->Cancel();
}
iLongPressTimer->Start( KLongPressInterval, KLongPressInterval,
TCallBack( ReportLongPressL, this ) );
}
}
// ---------------------------------------------------------------------------
// Callback method for long press timer.
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::ReportLongPressL( TAny* aThis )
{
__ASSERT_DEBUG( aThis, User::Invariant() );
static_cast<CAknTreeListView*>( aThis )->DoHandleLongPressL();
return NULL;
}
// ---------------------------------------------------------------------------
// Handles long press.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::DoHandleLongPressL()
{
if ( iFlags.IsClear( EFlagMarkingMode ) )
{
EnterMarkingMode();
}
}
// ---------------------------------------------------------------------------
// Enters marking mode.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::EnterMarkingMode()
{
CEikButtonGroupContainer* bgc;
CCoeControl* MSK = NULL;
MopGetObject( bgc );
if ( bgc )
{
CEikCba* cba = static_cast<CEikCba*>( bgc->ButtonGroup() );
if ( cba )
{
MSK = cba->Control( 3 );
}
}
TInt newResourceId = NULL;
if ( MSK && FocusedItem() )
{
if ( FocusedItem()->IsMarked() )
{
newResourceId = R_AVKON_SOFTKEY_UNMARK;
}
else
{
newResourceId = R_AVKON_SOFTKEY_MARK;
}
}
if ( newResourceId )
{
TRAPD( err, bgc->AddCommandToStackL( 3, newResourceId ) );
if ( !err )
{
ReportTreeListEvent( MAknTreeListObserver::EMarkingModeEnabled,
iTree.Id( FocusedItem() ) );
iFlags.Set( EFlagMarkingMode );
bgc->DrawNow();
}
}
}
// ---------------------------------------------------------------------------
// Exits marking mode.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::ExitMarkingMode()
{
if ( iFlags.IsSet( EFlagMarkingMode ) )
{
CEikButtonGroupContainer* bgc = NULL;
CCoeControl* MSK = NULL;
MopGetObject( bgc );
if ( bgc )
{
CEikCba* cba = static_cast<CEikCba*>( bgc->ButtonGroup() );
if ( cba )
{
MSK = cba->Control( 3 );
if ( MSK && ( cba->ControlId( MSK ) == EAknSoftkeyMark ||
cba->ControlId( MSK ) == EAknSoftkeyUnmark ) )
{
bgc->RemoveCommandFromStack( 3, cba->ControlId( MSK ) );
}
}
}
ReportTreeListEvent( MAknTreeListObserver::EMarkingModeDisabled,
iTree.Id( FocusedItem() ) );
iFlags.Clear( EFlagMarkingMode );
}
}
// ---------------------------------------------------------------------------
// Updates MSK command.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateMSKCommand()
{
CEikButtonGroupContainer* bgc = NULL;
MopGetObject( bgc );
if ( bgc )
{
TInt newResourceId = NULL;
MEikButtonGroup* bg = bgc->ButtonGroup();
if ( FocusedItem() && bg )
{
if ( FocusedItem()->IsMarked() &&
bg->CommandId( 3 ) == EAknSoftkeyMark )
{
newResourceId = R_AVKON_SOFTKEY_UNMARK;
}
else if ( !FocusedItem()->IsMarked() &&
bg->CommandId( 3 ) == EAknSoftkeyUnmark )
{
newResourceId = R_AVKON_SOFTKEY_MARK;
}
}
if ( newResourceId )
{
TRAP_IGNORE( bgc->SetCommandL( 3, newResourceId ) );
bgc->DrawNow();
}
}
}
// ---------------------------------------------------------------------------
// Draws the items when physics is enabled.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::DrawItemsWithPhysics( const TRect& aRect ) const
{
TBool empty = IsEmpty();
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
CWindowGc& gc = iGc && !empty ? *iGc : SystemGc();
TInt offset = Offset();
#else
CWindowGc& gc = SystemGc();
#endif
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
MAknListBoxTfxInternal* transApi = CAknListLoader::TfxApiInternal( &gc );
if ( !empty && transApi )
{
//fix scrollbar flickering by adding nondrawingrect
if ( iScrollbarFrame && iScrollbarFrame->ScrollBarVisibility
(CEikScrollBar::EHorizontal ) != CEikScrollBarFrame::EOff )
{
//why doesn't this link?
//transApi->AddNonDrawingRect( iScrollbarFrame->HorizontalScrollBar()->Rect() );
}
if ( iScrollbarFrame && iScrollbarFrame->ScrollBarVisibility
(CEikScrollBar::EVertical ) != CEikScrollBarFrame::EOff )
{
transApi->ResetNonDrawingRects ();
transApi->AddNonDrawingRect( iScrollbarFrame->VerticalScrollBar()->Rect() );
}
transApi->SetListType( MAknListBoxTfxInternal::EListBoxTypeTreeList );
transApi->BeginRedraw( MAknListBoxTfxInternal::EListView, Rect() );
transApi->StartDrawing( MAknListBoxTfxInternal::EListView );
}
#endif // RD_UI_TRANSITION_EFFECTS_LIST
MAknsSkinInstance* skin = AknsUtils::SkinInstance();
MAknsControlContext* cc = AknsDrawUtils::ControlContext( this );
AknsDrawUtils::Background( skin, cc, this, gc, aRect );
if ( empty )
{
__ASSERT_DEBUG( iEmptyListText, User::Invariant() );
AknDrawWithSkins::DrawEmptyList( Rect(), gc, iEmptyListText->Des(),
const_cast<CAknTreeListView*>( this ) );
}
else
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if ( transApi )
{
transApi->StopDrawing();
}
#endif // RD_UI_TRANSITION_EFFECTS_LIST
// text color, used to draw the separator line between list items
TRgb textColor( KRgbBlack );
AknsUtils::GetCachedColor( AknsUtils::SkinInstance(), textColor,
KAknsIIDQsnTextColors, EAknsCIQsnTextColorsCG6 );
const TInt itemCount = iItems.Count();
for ( TInt ii = 0; ii < itemCount; ++ii )
{
TRect drawRect( iItems[ii].Rect() );
if ( iItems[ii].Item() )
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
TRect tfxDrawRect( drawRect );
tfxDrawRect.Move( 0, -offset );
if ( transApi )
{
transApi->StartDrawing( MAknListBoxTfxInternal::EListNotSpecified );
}
TRect clippingRect( tfxDrawRect );
// If horizontal scrollbar on, reduce clipping rect
// based on view rect from layout data
if ( iScrollbarFrame->ScrollBarVisibility( CEikScrollBar::EHorizontal )
== CEikScrollBarFrame::EOn )
{
TRect viewRect( iPhysicsHandler->ViewRect( ) );
if ( clippingRect.iBr.iY > viewRect.iBr.iY )
{
clippingRect.iBr.iY = viewRect.iBr.iY;
}
}
// Set clipping rect.
gc.SetClippingRect( clippingRect );
if ( transApi )
{
transApi->StopDrawing();
}
#endif
if ( ii < iBottomIndex )
{
AknListUtils::DrawSeparator( gc, tfxDrawRect, textColor );
}
TBool focused = ( IsFocused() && FocusedItem() &&
iItems[ii].Item() == FocusedItem() );
if ( SingleClickEnabled() && !HighlightEnabled() )
{
focused = EFalse;
}
if ( focused )
{
// Draw highlight for focused item.
TRect highlightRect( iItems[ii].HighlightRect(
iViewLevel, Indention(), IndentionWidth() ) );
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
TRect tfxHighlightRect( highlightRect );
tfxHighlightRect.Move( 0, -offset );
#endif //RD_UI_TRANSITION_EFFECTS_LIST
if ( iIsPressedDownState || !DrawAnimation( gc, highlightRect ) )
{
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if ( transApi )
{
transApi->Invalidate(MAknListBoxTfxInternal::EListHighlight );
transApi->BeginRedraw( MAknListBoxTfxInternal::EListHighlight, tfxHighlightRect );
transApi->StartDrawing( MAknListBoxTfxInternal::EListHighlight );
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
DrawHighlight( gc, highlightRect, iIsPressedDownState );
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if ( transApi )
{
transApi->StopDrawing();
transApi->EndRedraw(MAknListBoxTfxInternal::EListHighlight);
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
}
drawRect.BoundingRect( highlightRect );
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
tfxDrawRect.BoundingRect( tfxHighlightRect );
#endif //RD_UI_TRANSITION_EFFECTS_LIST
}
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if (iItems[ii].Item())
{
if ( transApi )
{
transApi->BeginRedraw(MAknListBoxTfxInternal::EListItem, tfxDrawRect, iTree.VisibleItemIndex(iItems[ii].Item()));
transApi->StartDrawing( MAknListBoxTfxInternal::EListItem );
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
// Draw item.
iItems[ii].Draw( gc, iTree, drawRect, focused, iViewLevel,
StructureLines(), Indention(), IndentionWidth() );
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if ( transApi )
{
transApi->StopDrawing();
transApi->EndRedraw(MAknListBoxTfxInternal::EListItem, iTree.VisibleItemIndex(iItems[ii].Item()));
}
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST
}
}
}
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
if ( !empty && transApi )
{
transApi->EndViewRedraw( Rect() );
}
#endif // RD_UI_TRANSITION_EFFECTS_LIST
}
// ---------------------------------------------------------------------------
// Returns first visible item index.
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::FirstVisibleItemIndex() const
{
return iPhysicsHandler->FirstVisibleItemIndex();
}
// ---------------------------------------------------------------------------
// Returns last visible item index.
// ---------------------------------------------------------------------------
//
TInt CAknTreeListView::LastVisibleItemIndex() const
{
return iPhysicsHandler->LastVisibleItemIndex();
}
// ---------------------------------------------------------------------------
// Updates view items so that aItem is visible.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::UpdateViewItemAsVisible( CAknTreeItem* aItem )
{
// Do nothing if all items fit to view
if ( iItems.Count() >= iTree.VisibleItemCount() )
{
return;
}
// Items after this item
TInt itemsAfterVisible(
iTree.VisibleItemCount() - 1 - iTree.VisibleItemIndex( aItem ) );
CAknTreeItem* item( aItem );
TAknTreeIterator iterator( iTree.Iterator() );
iterator.SetCurrent( item );
SetFocusIndex( KMinTInt );
// If there are enough items to fill the view after this item,
// set this item as first in the item list
if ( itemsAfterVisible > iItems.Count() )
{
for ( TInt ii = 0; ii < iItems.Count(); ++ii )
{
iItems[ii].SetItem( item );
if ( item )
{
if ( item == FocusedItem() )
{
SetFocusIndex( ii );
}
item = iterator.Next();
}
}
}
// Else adjust the visible items from the last item
else
{
item = iTree.VisibleItem( iTree.VisibleItemCount() - 1 );
iterator.SetCurrent( item );
for ( TInt ii = iItems.Count() - 1; ii >= 0; ii-- )
{
iItems[ii].SetItem( item );
if ( item )
{
if ( item == FocusedItem() )
{
SetFocusIndex( ii );
}
item = iterator.Previous();
}
}
iScrollPhysicsTop = EFalse;
}
}
// ---------------------------------------------------------------------------
// From class CCoeControl.
// Draws the tree list view.
// ---------------------------------------------------------------------------
//
void CAknTreeListView::Draw( const TRect& aRect ) const
{
DrawItemsWithPhysics( aRect );
}
// ---------------------------------------------------------------------------
// Enables or disables the highlight drawing
// ---------------------------------------------------------------------------
//
void CAknTreeListView::EnableHighlight( TBool aEnabled )
{
if ( aEnabled )
{
iFlags.Set( EFlagHighlightEnabled );
}
else
{
iFlags.Clear( EFlagHighlightEnabled );
}
}
// ---------------------------------------------------------------------------
// Returns ETrue if highlight is enabled
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::HighlightEnabled() const
{
return iFlags.IsSet( EFlagHighlightEnabled );
}
// ---------------------------------------------------------------------------
// Returns ETrue if single click is enabled
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::SingleClickEnabled() const
{
if ( iFlags.IsSet( EFlagSingleClickEnabled ) )
{
return ETrue;
}
return EFalse;
}
// -----------------------------------------------------------------------------
// CAknTreeListView::CollectionState
// -----------------------------------------------------------------------------
//
TUint CAknTreeListView::CollectionState() const
{
TUint state( 0 );
if ( IsVisible() )
{
state |= MAknCollection::EStateCollectionVisible;
}
if ( HighlightEnabled() )
{
state |= MAknCollection::EStateHighlightVisible;
}
return state;
}
// -----------------------------------------------------------------------------
// CAknTreeListView::ItemActionMenuClosed
// -----------------------------------------------------------------------------
//
void CAknTreeListView::ItemActionMenuClosed()
{
iFlags.Clear( EFlagIgnoreButtonUpEvent );
EnableHighlight( EFalse );
DrawDeferred();
}
// -----------------------------------------------------------------------------
// CAknTreeListView::CollectionExtension
// -----------------------------------------------------------------------------
//
TInt CAknTreeListView::CollectionExtension( TUint /*aExtensionId*/,
TAny*& /*a0*/, TAny* /*a1*/ )
{
return KErrNone;
}
// ---------------------------------------------------------------------------
// CAknTreeListView::HandleLongTapEventL
// ---------------------------------------------------------------------------
//
void CAknTreeListView::HandleLongTapEventL(
const TPoint& /*aPenEventLocation*/,
const TPoint& aPenEventScreenLocation)
{
iFlags.Set( EFlagIgnoreButtonUpEvent );
iItemActionMenu->ShowMenuL( aPenEventScreenLocation, 0 );
}
// ---------------------------------------------------------------------------
// CAknTreeListView::LongTapPointerEventL
// ---------------------------------------------------------------------------
//
void CAknTreeListView::LongTapPointerEventL(
const TPointerEvent& aPointerEvent)
{
if ( iLongTapDetector && iItemActionMenu && iItemActionMenu->InitMenuL() )
{
iLongTapDetector->PointerEventL( aPointerEvent );
}
}
// ---------------------------------------------------------------------------
// CAknTreeListView::CancelLongTapDetector
// ---------------------------------------------------------------------------
//
void CAknTreeListView::CancelLongTapDetectorL()
{
if ( iLongTapDetector )
{
iLongTapDetector->CancelAnimationL();
}
}
// ---------------------------------------------------------------------------
// CAknTreeListView::HasMarkedItemsL
// ---------------------------------------------------------------------------
//
TBool CAknTreeListView::HasMarkedItemsL()
{
RArray<TInt> selection;
CleanupClosePushL( selection );
iList.GetMarkedItemsL( selection );
TInt count( selection.Count() );
CleanupStack::PopAndDestroy( &selection );
if ( count > 0 )
{
return ETrue;
}
return EFalse;
}
#ifdef RD_UI_TRANSITION_EFFECTS_LIST
// ---------------------------------------------------------------------------
// Sets the tfxgc for effects
// ---------------------------------------------------------------------------
//
void CAknTreeListView::SetGc( CWindowGc* aGc)
{
iGc = aGc;
iPhysicsHandler->SetGc( aGc );
}
TInt& CAknTreeListView::ItemCountLimit( )
{
return iItemCountLimit;
}
TInt& CAknTreeListView::HighlightIndex()
{
return iHighlightIndex;
}
TInt& CAknTreeListView::TopIndex()
{
return iTopIndex;
}
TInt& CAknTreeListView::BottomIndex()
{
return iBottomIndex;
}
void CAknTreeListView::UpdateIndexes()
{
iTopIndex = iBottomIndex = iHighlightIndex = 0;
if ( iItems.Count() )
{
for (TInt i=iItems.Count()-1; i>=0; i--)
{
if (iItems[i].Item())
{
iBottomIndex = iTree.VisibleItemIndex(iItems[i].Item());
break;
}
}
iTopIndex = iTree.VisibleItemIndex(iItems[0].Item());
iHighlightIndex = iTree.VisibleItemIndex(FocusedItem());
}
}
#endif //RD_UI_TRANSITION_EFFECTS_LIST