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CAknPopupList Class Reference

class CAknPopupList : public CEikBorderedControl

Used to popup a list or grid. Takes an existing listbox control and puts it into a popup frame together with an optional title.

CAknPopupList is not a dialog!

There are two standard usages of CAknPopupList :

        CAknPopupList *plist = CAknPopupList::NewL(...);
  CleanupStack::PushL(plist);
  ...
  TInt popupOk = plist->ExecuteLD(...);
  // No leaving functions allowed between ExecuteLD and
  // CleanupStack::Pop().
  CleanupStack::Pop(); // plist
  if (popupOk) { ... } else { ... }

And then another way:

        iPList = CAknPopupList::NewL(...);
  ...
  TInt popupOk = iPlist->ExecuteLD(...);
  // No leaving functions allowed between ExecuteLD and iPlist=NULL;
  iPlist = NULL;
  if (popupOk) {... } else {... }
  // note, destructor deletes the iPlist instance.

Both these work corretly and leave-safe way. Notice this usage is pretty different of how dialogs work. With dialogs you _always_ want to do CleanupStack::Pop() before calling ExecuteLD() .

Inherits from

CAknPopupList
- CEikBorderedControl
  - CAknControl
    - CCoeControl
      - CBase

Public Member Functions
IMPORT_C CEikButtonGroupContainer *	ButtonGroupContainer ()
IMPORT_C void	CancelPopup ()
IMPORT_C TBool	EnableAdaptiveFind ( TBool )
IMPORT_C TBool	EnableFind ( TBool )
IMPORT_C TBool	ExecuteLD ()
IMPORT_C CAknSearchField *	FindBox ()
IMPORT_C void	HandlePointerEventL (const TPointerEvent &)
IMPORT_C CAknPopupHeadingPane *	Heading ()
IMPORT_C CAknPopupHeadingPane *	Heading ()
IMPORT_C CEikListBox *	ListBox ()
IMPORT_C CAknPopupList *	NewL ( CEikListBox *, TInt , AknPopupLayouts::TAknPopupLayouts )
IMPORT_C void	SetMaximumHeight ( TInt )
IMPORT_C void	SetTitleL (const TDesC &)

Protected Member Functions
	CAknPopupList ()
	~CAknPopupList ()
IMPORT_C void	AttemptExitL ( TBool )
IMPORT_C void	ConstructL ( CEikListBox *, TInt , AknPopupLayouts::TAknPopupLayouts )
IMPORT_C void	FadeBehindPopup ( TBool )
IMPORT_C void	HandleControlEventL ( CCoeControl *, TCoeEvent)
IMPORT_C void	HandleListBoxEventL ( CEikListBox *, TListBoxEvent)
IMPORT_C void	HandleResourceChange ( TInt )
IMPORT_C const TAknPopupWindowLayoutDef &	Layout ()
IMPORT_C TAknPopupWindowLayoutDef &	Layout ()
IMPORT_C CEikListBox *	ListBox ()
IMPORT_C TTypeUid::Ptr	MopSupplyObject ( TTypeUid )
IMPORT_C void	ProcessCommandL ( TInt )
IMPORT_C void	SetupWindowLayout ( AknPopupLayouts::TAknPopupLayouts )

Private Member Functions
IMPORT_C void	CloseState ()
IMPORT_C CCoeControl *	ComponentControl ( TInt )
IMPORT_C TInt	CountComponentControls ()
IMPORT_C TInt	CountFadedComponents ()
IMPORT_C void	Draw (const TRect &)
IMPORT_C void *	ExtensionInterface ( TUid )
IMPORT_C CCoeControl *	FadedComponent ( TInt )
IMPORT_C void	FocusChanged ( TDrawNow )
IMPORT_C TSize	MinimumSize ()
IMPORT_C TKeyResponse	OfferKeyEventL (const TKeyEvent &, TEventCode )
void	RemoveFindFiltering ()

Inherited Functions
	CAknControl::CAknControl()
	CAknControl::~CAknControl()
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CCoeControl::AccumulatedZoom()const
	CCoeControl::ActivateGc()const
	CCoeControl::ActivateL()
	CCoeControl::BackedUpWindow()const
	CCoeControl::Background()const
	CCoeControl::CCoeControl()
	CCoeControl::CCoeControl(CCoeEnv *)
	CCoeControl::CCoeControl(const CCoeControl &)
	CCoeControl::CapturesPointer()const
	CCoeControl::ClaimPointerGrab(TBool)
	CCoeControl::ClaimPointerGrab(TInt,TBool)
	CCoeControl::CloseWindow()
	CCoeControl::ComponentArrayExists()const
	CCoeControl::Components()
	CCoeControl::Components()const
	CCoeControl::ConstructFromResourceL(TResourceReader &)
	CCoeControl::ControlContext()const
	CCoeControl::ControlEnv()const
	CCoeControl::CopyControlContextFrom(const CCoeControl *)
	CCoeControl::CreateBackedUpWindowL(RWindowTreeNode &)
	CCoeControl::CreateBackedUpWindowL(RWindowTreeNode &,TDisplayMode)
	CCoeControl::CreateWindowL()
	CCoeControl::CreateWindowL(RWindowGroup *)
	CCoeControl::CreateWindowL(RWindowTreeNode &)
	CCoeControl::CreateWindowL(const CCoeControl *)
	CCoeControl::CustomGc()const
	CCoeControl::DeactivateGc()const
	CCoeControl::DrawBackground(const TRect &)const
	CCoeControl::DrawDeferred()const
	CCoeControl::DrawForeground(const TRect &)const
	CCoeControl::DrawNow()const
	CCoeControl::DrawNow(const TRect &)const
	CCoeControl::DrawableWindow()const
	CCoeControl::EnableDragEvents()
	CCoeControl::EnableReportControlStateChange(TBool)
	CCoeControl::EnableWindowTransparency()
	CCoeControl::FindBackground()const
	CCoeControl::FindFontProvider()const
	CCoeControl::GetColor(TInt,TRgb &)const
	CCoeControl::GetGc()const
	CCoeControl::GetHelpContext(TCoeHelpContext &)const
	CCoeControl::GrabbingComponent()const
	CCoeControl::GrabbingComponent(TInt)const
	CCoeControl::HandleComponentControlsResourceChange(TInt)
	CCoeControl::HandleControlArrayEventL(CCoeControlArray::TEvent,const CCoeControlArray ,CCoeControl ,TInt)
	CCoeControl::HandlePointerBufferReadyL()
	CCoeControl::HandleRedrawEvent(const TRect &)const
	CCoeControl::HitTest()const
	CCoeControl::IgnoreEventsUntilNextPointerUp()
	CCoeControl::Index(const CCoeControl *)const
	CCoeControl::InitComponentArrayL()
	CCoeControl::InputCapabilities()const
	CCoeControl::IsActivated()const
	CCoeControl::IsBackedUp()const
	CCoeControl::IsBeingDestroyed()const
	CCoeControl::IsBlank()const
	CCoeControl::IsDimmed()const
	CCoeControl::IsFocused()const
	CCoeControl::IsNonFocusing()const
	CCoeControl::IsReadyToDraw()const
	CCoeControl::IsVisible()const
	CCoeControl::LayoutManager()const
	CCoeControl::MakeVisible(TBool)
	CCoeControl::MaximumWidth()const
	CCoeControl::NotifyFontChange(const CCoeFontProvider *)
	CCoeControl::Observer()const
	CCoeControl::OverrideColorL(TInt,TRgb)
	CCoeControl::OwnsWindow()const
	CCoeControl::Parent()
	CCoeControl::Parent()const
	CCoeControl::Position()const
	CCoeControl::PositionChanged()
	CCoeControl::PositionRelativeToScreen()const
	CCoeControl::PrepareForFocusGainL()
	CCoeControl::PrepareForFocusLossL()
	CCoeControl::ProcessPointerBufferReadyL()
	CCoeControl::ProcessPointerEventL(const TPointerEvent &)
	CCoeControl::Rect()const
	CCoeControl::RecursivelyMergeInputCapabilities(TCoeInputCapabilities &)const
	CCoeControl::RecursivelyMergedInputCapabilities()const
	CCoeControl::RefetchPixelMappingL()
	CCoeControl::RemoveFromParent()
	CCoeControl::ReportEventL(MCoeControlObserver::TCoeEvent)
	CCoeControl::RequestRelayout(const CCoeControl *)
	CCoeControl::ResetGc()const
	CCoeControl::ScreenFont(const TCoeFont &)const
	CCoeControl::SetAllowStrayPointers()
	CCoeControl::SetBackground(const MCoeControlBackground *)
	CCoeControl::SetBlank()
	CCoeControl::SetCanDrawOutsideRect()
	CCoeControl::SetComponentsToInheritVisibility(TBool)
	CCoeControl::SetContainerWindowL(RBackedUpWindow &)
	CCoeControl::SetContainerWindowL(RWindow &)
	CCoeControl::SetContainerWindowL(const CCoeControl &)
	CCoeControl::SetControlContext(MCoeControlContext *)
	CCoeControl::SetCornerAndSize(TGulAlignment,const TSize &)
	CCoeControl::SetCustomGc(CWindowGc *)
	CCoeControl::SetDimmed(TBool)
	CCoeControl::SetExtent(const TPoint &,const TSize &)
	CCoeControl::SetExtentToWholeScreen()
	CCoeControl::SetFocus(TBool,TDrawNow)
	CCoeControl::SetFocusing(TBool)
	CCoeControl::SetFontProviderL(const CCoeFontProvider &)
	CCoeControl::SetGc(CWindowGc *)const
	CCoeControl::SetGloballyCapturing(TBool)
	CCoeControl::SetHitTest(const MCoeControlHitTest *)
	CCoeControl::SetLayoutManagerL(MCoeLayoutManager *)
	CCoeControl::SetMaximumWidth(TInt)
	CCoeControl::SetMopParent(MObjectProvider *)
	CCoeControl::SetNeighbor(CCoeControl *)
	CCoeControl::SetNonFocusing()
	CCoeControl::SetObserver(MCoeControlObserver *)
	CCoeControl::SetParent(CCoeControl *)
	CCoeControl::SetPointerCapture(TBool)
	CCoeControl::SetPosition(const TPoint &)
	CCoeControl::SetRect(const TRect &)
	CCoeControl::SetSize(const TSize &)
	CCoeControl::SetSizeWithoutNotification(const TSize &)
	CCoeControl::SetTextBaselineSpacing(TInt)
	CCoeControl::SetUniqueHandle(TInt)
	CCoeControl::SetZoomFactorL(TInt,TZoomType)
	CCoeControl::Size()const
	CCoeControl::SizeChanged()
	CCoeControl::SystemGc()const
	CCoeControl::TextBaselineOffset(const TSize &)const
	CCoeControl::TextDrawer(TInt)const
	CCoeControl::UniqueHandle()const
	CCoeControl::Window()const
	CCoeControl::WriteInternalStateNowL(RWriteStream &)const
	CCoeControl::ZoomWithType()const
	CCoeControl::operator=(const CCoeControl &)
	CCoeControl::~CCoeControl()
	CEikBorderedControl::Border()const
	CEikBorderedControl::CEikBorderedControl()
	CEikBorderedControl::CEikBorderedControl(const TGulBorder &)
	CEikBorderedControl::GetColorUseListL(CArrayFix< TCoeColorUse > &)const
	CEikBorderedControl::HasBorder()const
	CEikBorderedControl::SetAdjacent(TInt)
	CEikBorderedControl::SetBorder(TGulBorder::TBorderType)
	CEikBorderedControl::SetBorder(TInt)
	CEikBorderedControl::WriteInternalStateL(RWriteStream &)const

Inherited Enumerations
	CCoeControl:TZoomType

Protected Attributes
TBool	iAppBroughtForwards
TInt	iCurrentResource
CIdle *	iIdle
TAknPopupWindowLayoutDef	iLayout
CEikListBox *	iListBox
TBool	iMarkable
CEikButtonGroupContainer *	iPopoutCba
TAknPopupFader	iPopupFader
TBool *	iReturn
CAknPopupHeadingPane *	iTitle
CActiveSchedulerWait	iWait
AknPopupLayouts::TAknPopupLayouts	iWindowType

Private Attributes
CAknPopupListExtension *	iPopupListExtension

Inherited Attributes
	CCoeControl::iCoeEnv
	CCoeControl::iContext
	CCoeControl::iPosition
	CCoeControl::iSize
	CEikBorderedControl::iBorder

Constructor & Destructor Documentation

CAknPopupList()

IMPORT_C

CAknPopupList

(

)

[protected]

C++ default constructor.

~CAknPopupList()

IMPORT_C

~CAknPopupList

(

)

[protected]

Destructor.

Member Functions Documentation

AttemptExitL(TBool)

IMPORT_C void

AttemptExitL

(

TBool

aAccept

)

[protected, virtual]

Called when the user accepts or cancels the listbox.

Parameters

TBool aAccept

ETrue if the user has accepted, EFalse if the user has cancelled the listbox.

ButtonGroupContainer()

IMPORT_C CEikButtonGroupContainer *

ButtonGroupContainer

(

)

Gets a button group container.

CancelPopup()

IMPORT_C void

CancelPopup

(

)

Cancels the current popup. The popup ExecuteLD will return with EFalse .

CloseState()

IMPORT_C void

CloseState

(

)

[private]

ComponentControl(TInt)

IMPORT_C CCoeControl *

ComponentControl

(

TInt

aIndex

)

const [private, virtual]

Parameters

TInt aIndex

ConstructL(CEikListBox *, TInt, AknPopupLayouts::TAknPopupLayouts)

IMPORT_C void	ConstructL	(	CEikListBox *	aListBox,
			TInt	aCbaResource,
			AknPopupLayouts::TAknPopupLayouts	aType
		)	[protected]

Handles 2nd phase construction.

Parameters

CEikListBox * aListBox	Pre-existing listbox-derived class.
TInt aCbaResource	Softkey pane to display while pop-up is active.
AknPopupLayouts::TAknPopupLayouts aType	The layout used.

CountComponentControls()

IMPORT_C TInt

CountComponentControls

(

)

const [private, virtual]

CountFadedComponents()

IMPORT_C TInt

CountFadedComponents

(

)

[private, virtual]

Draw(const TRect &)

IMPORT_C void

Draw

(

const TRect &

aRect

)

const [private, virtual]

From CCoeControl . Draws the border around the control. This function also clears the central area if the IsBlank() method returns ETrue .

From CCoeControl

CCoeControl::IsBlank() Border()

Parameters

const TRect & aRect

Not used.

EnableAdaptiveFind(TBool)

IMPORT_C TBool

EnableAdaptiveFind

(

TBool

aEnable = ETrue

)

Enables the findbox with adaptive search of the popup list.

Since: 5.0

Parameters

TBool aEnable = ETrue

Enables (default) or disables the adaptive findbox.

EnableFind(TBool)

IMPORT_C TBool

EnableFind

(

TBool

aEnable = ETrue

)

Enables the findbox of the popup list.

Parameters

TBool aEnable = ETrue

Enables (default) or disables the findbox.

ExecuteLD()

IMPORT_C TBool

ExecuteLD

(

)

Executes the pop-up selection list. Function returns when the user have accepted or cancelled the pop-up.

ExtensionInterface(TUid)

IMPORT_C void *

ExtensionInterface

(

TUid

aInterface

)

[private, virtual]

From CAknControl

Parameters

TUid aInterface

FadeBehindPopup(TBool)

IMPORT_C void

FadeBehindPopup

(

TBool

aFade

)

[protected]

Parameters

TBool aFade

FadedComponent(TInt)

IMPORT_C CCoeControl *

FadedComponent

(

TInt

aIndex

)

[private, virtual]

Parameters

TInt aIndex

FindBox()

IMPORT_C CAknSearchField *

FindBox

(

)

const

Gets the search field control.

FocusChanged(TDrawNow)

IMPORT_C void

FocusChanged

(

TDrawNow

aDrawNow

)

[private, virtual]

Parameters

TDrawNow aDrawNow

HandleControlEventL(CCoeControl *, TCoeEvent)

IMPORT_C void	HandleControlEventL	(	CCoeControl *	aControl,
			TCoeEvent	aEventType
		)	[protected]

From MCoeControlObserver .

Handles an event from an observed control.

Parameters

CCoeControl * aControl	Control being observed.
TCoeEvent aEventType	Event observed.

HandleListBoxEventL(CEikListBox *, TListBoxEvent)

IMPORT_C void	HandleListBoxEventL	(	CEikListBox *	aListBox,
			TListBoxEvent	aEventType
		)	[protected]

From MEikListBoxObserver .

Processes key events from the listbox. Responds to EEventEnterKeyPressed to accept the pop-up.

Parameters

CEikListBox * aListBox	Listbox being observed.
TListBoxEvent aEventType	Event being observed.

HandlePointerEventL(const TPointerEvent &)

IMPORT_C void

HandlePointerEventL

(

const TPointerEvent &

aPointerEvent

)

[virtual]

From CCoeControl .

Handles pointer events of popups.

Parameters

const TPointerEvent & aPointerEvent

Pointer event to be handled.

HandleResourceChange(TInt)

IMPORT_C void

HandleResourceChange

(

TInt

aType

)

[protected, virtual]

From CCoeControl .

Handles a change to the control's resources.

Parameters

TInt aType

A message UID value.

Heading()

IMPORT_C CAknPopupHeadingPane *

Heading

(

)

Gets the popup header.

Heading()

IMPORT_C CAknPopupHeadingPane *

Heading

(

)

const

Gets the popup header.

Layout()

IMPORT_C const TAknPopupWindowLayoutDef &

Layout

(

)

const [protected]

Gets the layout definitions for the popup list.

Layout()

IMPORT_C TAknPopupWindowLayoutDef &

Layout

(

)

[protected]

Gets the layout definitions for the popup list.

ListBox()

IMPORT_C CEikListBox *

ListBox

(

)

Gets the list box.

ListBox()

IMPORT_C CEikListBox *

ListBox

(

)

const [protected]

Returns the listbox being used.

MinimumSize()

IMPORT_C TSize

MinimumSize

(

)

[private, virtual]

MopSupplyObject(TTypeUid)

IMPORT_C TTypeUid::Ptr

MopSupplyObject

(

TTypeUid

aId

)

[protected]

From MopSupplyObject .

Retrieves an object of the same type as that encapsulated in aId .

Parameters

TTypeUid aId

Encapsulated object type ID.

NewL(CEikListBox *, TInt, AknPopupLayouts::TAknPopupLayouts)

IMPORT_C CAknPopupList *	NewL	(	CEikListBox *	aListBox,
			TInt	aCbaResource,
			AknPopupLayouts::TAknPopupLayouts	aType = AknPopupLayouts::EMenuWindow
		)	[static]

Two-phased constructor.

Creates the pop-up list.

Parameters

CEikListBox * aListBox	Pre-existing listbox-derived class.
TInt aCbaResource	Softkey pane to display while pop-up is active.
AknPopupLayouts::TAknPopupLayouts aType = AknPopupLayouts::EMenuWindow	The layout used.

OfferKeyEventL(const TKeyEvent &, TEventCode)

IMPORT_C TKeyResponse	OfferKeyEventL	(	const TKeyEvent &	aKeyEvent,
			TEventCode	aType
		)	[private, virtual]

Parameters

const TKeyEvent & aKeyEvent
TEventCode aType

ProcessCommandL(TInt)

IMPORT_C void

ProcessCommandL

(

TInt

aCommandId

)

[protected]

From MEikCommandObserver .

Processes events from the softkeys. Responds to EAknSoftkeyOk and EAknSoftkeyBack to accept or cancel the pop-up.

Parameters

TInt aCommandId

Event Id from the soft-key.

RemoveFindFiltering()

void

RemoveFindFiltering

(

)

[private]

SetMaximumHeight(TInt)

IMPORT_C void

SetMaximumHeight

(

TInt

aItems

)

Sets the maximum height for the popup frame.

Parameters

TInt aItems

The maximum height.

SetTitleL(const TDesC &)

IMPORT_C void

SetTitleL

(

const TDesC &

aTitle

)

Sets the title for the selection list.

Parameters

const TDesC & aTitle

Title to be displayed.

SetupWindowLayout(AknPopupLayouts::TAknPopupLayouts)

IMPORT_C void

SetupWindowLayout

(

AknPopupLayouts::TAknPopupLayouts

aType

)

[protected, virtual]

Setup the whole window layout; window position, grid and heading position, shadow for the window.

Parameters

AknPopupLayouts::TAknPopupLayouts aType

A choice of layout.

Member Data Documentation

TBool iAppBroughtForwards

TBool

iAppBroughtForwards

[protected]

TInt iCurrentResource

TInt

iCurrentResource

[protected]

CIdle * iIdle

CIdle *

iIdle

[protected]

TAknPopupWindowLayoutDef iLayout

TAknPopupWindowLayoutDef

iLayout

[protected]

collects all LAF specification lines that are needed for popup window.

CEikListBox * iListBox

CEikListBox *

iListBox

[protected]

TBool iMarkable

TBool

iMarkable

[protected]

CEikButtonGroupContainer * iPopoutCba

CEikButtonGroupContainer *

iPopoutCba

[protected]

A button group container - a wrapper around the different button arrays.

TAknPopupFader iPopupFader

TAknPopupFader

iPopupFader

[protected]

CAknPopupListExtension * iPopupListExtension

CAknPopupListExtension *

iPopupListExtension

[private]

TBool * iReturn

TBool *

iReturn

[protected]

The address to hold the return value from the popup

CAknPopupHeadingPane * iTitle

CAknPopupHeadingPane *

iTitle

[protected]

Header control for queries. Defines properties of the header of the pop-up menu.

CActiveSchedulerWait iWait

CActiveSchedulerWait

iWait

[protected]

AknPopupLayouts::TAknPopupLayouts iWindowType

AknPopupLayouts::TAknPopupLayouts

iWindowType

[protected]

Popup layout type.