Manages registration of actors in an accessibility focus chain and changing the focused actor within that chain. More...

Inheritance diagram for Dali::Toolkit::AccessibilityManager:

Public Types
enum	AccessibilityAttribute
	Enumeration for accessibility that needs four information which will be read by screen-reader. More...
enum	FocusOvershotDirection
	Enumeration for overshoot direction. More...
typedef Signal< bool(AccessibilityManager &) >	AccessibilityActionSignalType
	Accessibility Action Signal.
typedef Signal< bool(AccessibilityManager &, const Dali::TouchEvent &)>	AccessibilityActionScrollSignalType
	Scroll signal type.
typedef Signal< void(Actor, Actor) >	FocusChangedSignalType
	Focus changed signal.
typedef Signal< void(Actor, FocusOvershotDirection) >	FocusOvershotSignalType
	Focus overshooted signal.
typedef Signal< void(Actor) >	FocusedActorActivatedSignalType
	Focused actor activated signal.
Public Member Functions
	AccessibilityManager ()
	Creates an AccessibilityManager handle; this can be initialised with AccessibilityManager::New().
	~AccessibilityManager ()
	Destructor.
void	SetAccessibilityAttribute (Actor actor, AccessibilityAttribute type, const std::string &text)
	Sets the information of the specified actor's accessibility attribute.
std::string	GetAccessibilityAttribute (Actor actor, AccessibilityAttribute type) const
	Gets the text of the specified actor's accessibility attribute.
void	SetFocusOrder (Actor actor, const unsigned int order)
	Sets the focus order of the actor.
unsigned int	GetFocusOrder (Actor actor) const
	Gets the focus order of the actor.
unsigned int	GenerateNewFocusOrder () const
	Generates a new focus order number which can be used to assign to actors which need to be appended to the end of the current focus order chain.
Actor	GetActorByFocusOrder (const unsigned int order)
	Gets the actor that has the specified focus order.
bool	SetCurrentFocusActor (Actor actor)
	Moves the focus to the specified actor.
Actor	GetCurrentFocusActor ()
	Gets the current focused actor.
Actor	GetCurrentFocusGroup ()
	Gets the focus group of current focused actor.
unsigned int	GetCurrentFocusOrder ()
	Gets the focus order of currently focused actor.
bool	MoveFocusForward ()
	Moves the focus to the next focusable actor in the focus chain (according to the focus traversal order).
bool	MoveFocusBackward ()
	Moves the focus to the previous focusable actor in the focus chain (according to the focus traversal order).
void	ClearFocus ()
	Clears the focus from the current focused actor if any, so that no actor is focused in the focus chain.
void	Reset ()
	Clears every registered focusable actor from focus-manager.
void	SetFocusGroup (Actor actor, bool isFocusGroup)
	Sets whether an actor is a focus group that can limit the scope of focus movement to its child actors in the focus chain.
bool	IsFocusGroup (Actor actor) const
	Checks whether the actor is set as a focus group or not.
void	SetGroupMode (bool enabled)
	Sets whether the group mode is enabled or not.
bool	GetGroupMode () const
	Gets whether the group mode is enabled or not.
void	SetWrapMode (bool wrapped)
	Sets whether focus will be moved to the beginning of the focus chain when it reaches the end or vice versa.
bool	GetWrapMode () const
	Gets whether the wrap mode is enabled or not.
void	SetFocusIndicatorActor (Actor indicator)
	Sets the focus indicator actor.
Actor	GetFocusIndicatorActor ()
	Gets the focus indicator actor.
Actor	GetFocusGroup (Actor actor)
	Returns the closest ancestor of the given actor that is a focus group.
Vector2	GetReadPosition () const
	Returns the current position of the read action.
FocusChangedSignalType &	FocusChangedSignal ()
	This signal is emitted when the current focused actor is changed.
FocusOvershotSignalType &	FocusOvershotSignal ()
	This signal is emitted when there is no way to move focus further.
FocusedActorActivatedSignalType &	FocusedActorActivatedSignal ()
	This signal is emitted when the current focused actor is activated.
AccessibilityActionSignalType &	StatusChangedSignal ()
	This is emitted when accessibility(screen-reader) feature turned on or off.
AccessibilityActionSignalType &	ActionNextSignal ()
	This is emitted when accessibility action is received to move focus to the next focusable actor (by one finger flick down).
AccessibilityActionSignalType &	ActionPreviousSignal ()
	This is emitted when accessibility action is received to move focus to the previous focusable actor (by one finger flick up).
AccessibilityActionSignalType &	ActionActivateSignal ()
	This is emitted when accessibility action is received to activate the current focused actor (by one finger double tap).
AccessibilityActionSignalType &	ActionReadSignal ()
	This is emitted when accessibility action is received to focus and read the actor (by one finger tap).
AccessibilityActionSignalType &	ActionOverSignal ()
	This is emitted when accessibility action is received to focus and read the actor (by one finger move).
AccessibilityActionSignalType &	ActionReadNextSignal ()
	This is emitted when accessibility action is received to move focus to the next focusable actor (by one finger flick right).
AccessibilityActionSignalType &	ActionReadPreviousSignal ()
	This is emitted when accessibility action is received to move focus to the previous focusable actor (by one finger flick left).
AccessibilityActionSignalType &	ActionUpSignal ()
	This is emitted when accessibility action is received to change the value when the current focused actor is a slider (by double finger down and move up and right).
AccessibilityActionSignalType &	ActionDownSignal ()
	This is emitted when accessibility action is received to change the value when the current focused actor is a slider (by double finger down and move down and left).
AccessibilityActionSignalType &	ActionClearFocusSignal ()
	This is emitted when accessibility action is received to clear the focus from the current focused actor if any, so that no actor is focused in the focus chain.
AccessibilityActionSignalType &	ActionBackSignal ()
	This is emitted when accessibility action is received to navigate back (by two fingers circle draw).
AccessibilityActionSignalType &	ActionScrollUpSignal ()
	This is emitted when accessibility action is received to scroll up the list (by two finger swipe up).
AccessibilityActionSignalType &	ActionScrollDownSignal ()
	This is emitted when accessibility action is received to scroll down the list (by two finger swipe down).
AccessibilityActionSignalType &	ActionPageLeftSignal ()
	This is emitted when accessibility action is received to scroll left to the previous page (by two finger swipe left).
AccessibilityActionSignalType &	ActionPageRightSignal ()
	This is emitted when accessibility action is received to scroll right to the next page (by two finger swipe right).
AccessibilityActionSignalType &	ActionPageUpSignal ()
	This is emitted when accessibility action is received to scroll up to the previous page (by one finger swipe left and right).
AccessibilityActionSignalType &	ActionPageDownSignal ()
	This is emitted when accessibility action is received to scroll down to the next page (by one finger swipe right and left).
AccessibilityActionSignalType &	ActionMoveToFirstSignal ()
	This is emitted when accessibility action is received to move the focus to the first item on the screen (by one finger swipe up and down).
AccessibilityActionSignalType &	ActionMoveToLastSignal ()
	This is emitted when accessibility action is received to move the focus to the last item on the screen (by one finger swipe down and up).
AccessibilityActionSignalType &	ActionReadFromTopSignal ()
	This is emitted when accessibility action is received to focus and read from the first item on the top continuously (by three fingers single tap).
AccessibilityActionSignalType &	ActionReadFromNextSignal ()
	This is emitted when accessibility action is received to move the focus to and read from the next item continuously (by three fingers double tap).
AccessibilityActionSignalType &	ActionZoomSignal ()
	This is emitted when accessibility action is received to zoom (by one finger triple tap).
AccessibilityActionSignalType &	ActionReadIndicatorInformationSignal ()
	This is emitted when accessibility action is received to read the information in the indicator (by two fingers triple tap).
AccessibilityActionSignalType &	ActionReadPauseResumeSignal ()
	This is emitted when accessibility action is received to pause/resume the current speech (by two fingers single tap).
AccessibilityActionSignalType &	ActionStartStopSignal ()
	This is emitted when accessibility action is received to start/stop the current action (by two fingers double tap).
AccessibilityActionScrollSignalType &	ActionScrollSignal ()
	This is emitted when accessibility action is received to handle scroll event (by two fingers drag).
Static Public Member Functions
static AccessibilityManager	Get ()
	Gets the singleton of AccessibilityManager object.

Detailed Description

Manages registration of actors in an accessibility focus chain and changing the focused actor within that chain.

This class provides the functionality of registering the focus order and description of actors and maintaining the focus chain.

It provides functionality of setting the focus and moving the focus forward and backward. It also draws a highlight for the focused actor and emits a signal when the focus is changed.

Signals | Signal Name | Method | |-----------------------|------------------------------------| | focusChanged | FocusChangedSignal() | | focusOvershot | FocusOvershotSignal() | | focusedActorActivated | FocusedActorActivatedSignal() |

Since:: 3.0, DALi version 1.0.0

Member Typedef Documentation

typedef Signal< bool ( AccessibilityManager&, const Dali::TouchEvent& )> Dali::Toolkit::AccessibilityManager::AccessibilityActionScrollSignalType

Scroll signal type.

Since:: 3.0, DALi version 1.0.0

typedef Signal< bool ( AccessibilityManager& ) > Dali::Toolkit::AccessibilityManager::AccessibilityActionSignalType

Accessibility Action Signal.

The connected signal callback should return true if handled.

Since:: 3.0, DALi version 1.0.0 Generic signal type

Since:: 3.0, DALi version 1.0.0

typedef Signal< void ( Actor, Actor ) > Dali::Toolkit::AccessibilityManager::FocusChangedSignalType

Focus changed signal.

Since:: 3.0, DALi version 1.0.0

typedef Signal< void ( Actor ) > Dali::Toolkit::AccessibilityManager::FocusedActorActivatedSignalType

Focused actor activated signal.

Since:: 3.0, DALi version 1.0.0

typedef Signal< void ( Actor, FocusOvershotDirection ) > Dali::Toolkit::AccessibilityManager::FocusOvershotSignalType

Focus overshooted signal.

Since:: 3.0, DALi version 1.0.0

Member Enumeration Documentation

enum Dali::Toolkit::AccessibilityManager::AccessibilityAttribute

Enumeration for accessibility that needs four information which will be read by screen-reader.

Reading order : Label -> Trait -> Optional (Value and Hint)

Since:: 3.0, DALi version 1.0.0

Enumerator:

ACCESSIBILITY_LABEL	Simple text which contained in ui-control. Since: 3.0, DALi version 1.0.0
ACCESSIBILITY_TRAIT	Description of ui-control trait. Since: 3.0, DALi version 1.0.0
ACCESSIBILITY_VALUE	Current value of ui-control (Optional) Since: 3.0, DALi version 1.0.0
ACCESSIBILITY_HINT	Hint for action (Optional) Since: 3.0, DALi version 1.0.0
ACCESSIBILITY_ATTRIBUTE_NUM	Number of attributes. Since: 3.0, DALi version 1.0.0

enum Dali::Toolkit::AccessibilityManager::FocusOvershotDirection

Enumeration for overshoot direction.

Since:: 3.0, DALi version 1.0.0

Enumerator:

OVERSHOT_PREVIOUS

Try to move previous of the first actor.

Since:: 3.0, DALi version 1.0.0

OVERSHOT_NEXT

Try to move next of the last actor.

Since:: 3.0, DALi version 1.0.0

Constructor & Destructor Documentation

Dali::Toolkit::AccessibilityManager::AccessibilityManager ( )

Creates an AccessibilityManager handle; this can be initialised with AccessibilityManager::New().

Calling member functions with an uninitialized handle is not allowed.

Since:: 3.0, DALi version 1.0.0

Dali::Toolkit::AccessibilityManager::~AccessibilityManager ( )

Destructor.

This is non-virtual since derived Handle types must not contain data or virtual methods.

Since:: 3.0, DALi version 1.0.0

Member Function Documentation

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionActivateSignal ( )

This is emitted when accessibility action is received to activate the current focused actor (by one finger double tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionBackSignal ( )

This is emitted when accessibility action is received to navigate back (by two fingers circle draw).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionClearFocusSignal ( )

This is emitted when accessibility action is received to clear the focus from the current focused actor if any, so that no actor is focused in the focus chain.

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionDownSignal ( )

This is emitted when accessibility action is received to change the value when the current focused actor is a slider (by double finger down and move down and left).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionMoveToFirstSignal ( )

This is emitted when accessibility action is received to move the focus to the first item on the screen (by one finger swipe up and down).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionMoveToLastSignal ( )

This is emitted when accessibility action is received to move the focus to the last item on the screen (by one finger swipe down and up).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionNextSignal ( )

This is emitted when accessibility action is received to move focus to the next focusable actor (by one finger flick down).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionOverSignal ( )

This is emitted when accessibility action is received to focus and read the actor (by one finger move).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionPageDownSignal ( )

This is emitted when accessibility action is received to scroll down to the next page (by one finger swipe right and left).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionPageLeftSignal ( )

This is emitted when accessibility action is received to scroll left to the previous page (by two finger swipe left).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionPageRightSignal ( )

This is emitted when accessibility action is received to scroll right to the next page (by two finger swipe right).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionPageUpSignal ( )

This is emitted when accessibility action is received to scroll up to the previous page (by one finger swipe left and right).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionPreviousSignal ( )

This is emitted when accessibility action is received to move focus to the previous focusable actor (by one finger flick up).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadFromNextSignal ( )

This is emitted when accessibility action is received to move the focus to and read from the next item continuously (by three fingers double tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadFromTopSignal ( )

This is emitted when accessibility action is received to focus and read from the first item on the top continuously (by three fingers single tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to.

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadIndicatorInformationSignal ( )

This is emitted when accessibility action is received to read the information in the indicator (by two fingers triple tap).

Deprecated:: Deprecated since 5.5, DALi version 1.4.9

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadNextSignal ( )

This is emitted when accessibility action is received to move focus to the next focusable actor (by one finger flick right).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadPauseResumeSignal ( )

This is emitted when accessibility action is received to pause/resume the current speech (by two fingers single tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadPreviousSignal ( )

This is emitted when accessibility action is received to move focus to the previous focusable actor (by one finger flick left).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionReadSignal ( )

This is emitted when accessibility action is received to focus and read the actor (by one finger tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionScrollDownSignal ( )

This is emitted when accessibility action is received to scroll down the list (by two finger swipe down).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionScrollSignalType& Dali::Toolkit::AccessibilityManager::ActionScrollSignal ( )

This is emitted when accessibility action is received to handle scroll event (by two fingers drag).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager, const TouchEvent& event );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionScrollUpSignal ( )

This is emitted when accessibility action is received to scroll up the list (by two finger swipe up).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionStartStopSignal ( )

This is emitted when accessibility action is received to start/stop the current action (by two fingers double tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionUpSignal ( )

This is emitted when accessibility action is received to change the value when the current focused actor is a slider (by double finger down and move up and right).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::ActionZoomSignal ( )

This is emitted when accessibility action is received to zoom (by one finger triple tap).

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

void Dali::Toolkit::AccessibilityManager::ClearFocus ( )

Clears the focus from the current focused actor if any, so that no actor is focused in the focus chain.

It will emit focus changed signal without current focused actor.

Since:: 3.0, DALi version 1.0.0

Precondition:: The AccessibilityManager has been initialized.

FocusChangedSignalType& Dali::Toolkit::AccessibilityManager::FocusChangedSignal ( )

This signal is emitted when the current focused actor is changed.

A callback of the following type may be connected:

   void YourCallbackName(Actor originalFocusedActor, Actor currentFocusedActor);

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

Precondition:: The Object has been initialized.

FocusedActorActivatedSignalType& Dali::Toolkit::AccessibilityManager::FocusedActorActivatedSignal ( )

This signal is emitted when the current focused actor is activated.

A callback of the following type may be connected:

   void YourCallbackName(Actor activatedActor);

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

Precondition:: The Object has been initialized.

FocusOvershotSignalType& Dali::Toolkit::AccessibilityManager::FocusOvershotSignal ( )

This signal is emitted when there is no way to move focus further.

A callback of the following type may be connected:

   void YourCallbackName(Actor currentFocusedActor, FocusOvershotDirection direction);

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

Precondition:: The Object has been initialized.

unsigned int Dali::Toolkit::AccessibilityManager::GenerateNewFocusOrder ( ) const

Generates a new focus order number which can be used to assign to actors which need to be appended to the end of the current focus order chain.

The new number will be an increment over the very last focus order number in the focus chain. If the focus chain is empty then the function returns 1, else the number returned will be FOLast + 1 where FOLast is the focus order of the very last control in the focus chain.

Since:: 3.0, DALi version 1.0.0

Returns:: The focus order of the actor

Precondition:: The AccessibilityManager has been initialized.

static AccessibilityManager Dali::Toolkit::AccessibilityManager::Get ( ) [static]

Gets the singleton of AccessibilityManager object.

Since:: 3.0, DALi version 1.0.0

Returns:: A handle to the AccessibilityManager control

std::string Dali::Toolkit::AccessibilityManager::GetAccessibilityAttribute	(	Actor	actor,
		AccessibilityAttribute	type
	)		const

Gets the text of the specified actor's accessibility attribute.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor	The actor to be queried
type	The attribute type to be queried

Returns:: The text of the actor's accessibility information

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

Actor Dali::Toolkit::AccessibilityManager::GetActorByFocusOrder ( const unsigned int order )

Gets the actor that has the specified focus order.

It will return an empty handle if no actor in the stage has the specified focus order.

Since:: 3.0, DALi version 1.0.0

Parameters:

order The focus order of the actor

Returns:: The actor that has the specified focus order or an empty handle if no actor in the stage has the specified focus order

Precondition:: The AccessibilityManager has been initialized.

Actor Dali::Toolkit::AccessibilityManager::GetCurrentFocusActor ( )

Gets the current focused actor.

Since:: 3.0, DALi version 1.0.0

Returns:: A handle to the current focused actor or an empty handle if no actor is focused

Precondition:: The AccessibilityManager has been initialized.

Actor Dali::Toolkit::AccessibilityManager::GetCurrentFocusGroup ( )

Gets the focus group of current focused actor.

Since:: 3.0, DALi version 1.0.0

Returns:: A handle to the immediate parent of the current focused actor which is also a focus group, or an empty handle if no actor is focused

Precondition:: The AccessibilityManager has been initialized.

unsigned int Dali::Toolkit::AccessibilityManager::GetCurrentFocusOrder ( )

Gets the focus order of currently focused actor.

Since:: 3.0, DALi version 1.0.0

Returns:: The focus order of the currently focused actor or 0 if no actor is in focus

Precondition:: The AccessibilityManager has been initialized.

Actor Dali::Toolkit::AccessibilityManager::GetFocusGroup ( Actor actor )

Returns the closest ancestor of the given actor that is a focus group.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor The actor to be checked for its focus group

Returns:: The focus group the given actor belongs to or an empty handle if the given actor doesn't belong to any focus group

Actor Dali::Toolkit::AccessibilityManager::GetFocusIndicatorActor ( )

Gets the focus indicator actor.

Since:: 3.0, DALi version 1.0.0

Returns:: A handle to the focus indicator actor

Precondition:: The AccessibilityManager has been initialized.

unsigned int Dali::Toolkit::AccessibilityManager::GetFocusOrder ( Actor actor ) const

Gets the focus order of the actor.

When the focus order is 0, it means the focus order of the actor is undefined.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor The actor to be queried

Returns:: The focus order of the actor

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

bool Dali::Toolkit::AccessibilityManager::GetGroupMode ( ) const

Gets whether the group mode is enabled or not.

Since:: 3.0, DALi version 1.0.0

Returns:: Whether the group mode is enabled or not.

Precondition:: The AccessibilityManager has been initialized.

Vector2 Dali::Toolkit::AccessibilityManager::GetReadPosition ( ) const

Returns the current position of the read action.

Since:: 3.0, DALi version 1.0.0

Returns:: The current event position

bool Dali::Toolkit::AccessibilityManager::GetWrapMode ( ) const

Gets whether the wrap mode is enabled or not.

Since:: 3.0, DALi version 1.0.0

Returns:: Whether the wrap mode is enabled or not.

Precondition:: The AccessibilityManager has been initialized.

bool Dali::Toolkit::AccessibilityManager::IsFocusGroup ( Actor actor ) const

Checks whether the actor is set as a focus group or not.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor The actor to be checked

Returns:: Whether the actor is set as a focus group

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

bool Dali::Toolkit::AccessibilityManager::MoveFocusBackward ( )

Moves the focus to the previous focusable actor in the focus chain (according to the focus traversal order).

When the focus movement is wrapped around, the focus will be moved to the last focusable actor when it reaches the beginning of the focus chain.

Since:: 3.0, DALi version 1.0.0

Returns:: true if the moving was successful

Precondition:: The AccessibilityManager has been initialized.

bool Dali::Toolkit::AccessibilityManager::MoveFocusForward ( )

Moves the focus to the next focusable actor in the focus chain (according to the focus traversal order).

When the focus movement is wrapped around, the focus will be moved to the first focusable actor when it reaches the end of the focus chain.

Since:: 3.0, DALi version 1.0.0

Returns:: true if the moving was successful

Precondition:: The AccessibilityManager has been initialized.

void Dali::Toolkit::AccessibilityManager::Reset ( )

Clears every registered focusable actor from focus-manager.

Since:: 3.0, DALi version 1.0.0

Precondition:: The AccessibilityManager has been initialized.

Reimplemented from Dali::BaseHandle.

void Dali::Toolkit::AccessibilityManager::SetAccessibilityAttribute	(	Actor	actor,
		AccessibilityAttribute	type,
		const std::string &	text
	)

Sets the information of the specified actor's accessibility attribute.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor	The actor, the text to be set with
type	The attribute type the text to be set with
text	The text for the actor's accessibility information

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

bool Dali::Toolkit::AccessibilityManager::SetCurrentFocusActor ( Actor actor )

Moves the focus to the specified actor.

Only one actor can be focused at the same time. The actor must have a defined focus order and must be focusable, visible and in the stage.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor The actor to be focused

Returns:: Whether the focus is successful or not

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

void Dali::Toolkit::AccessibilityManager::SetFocusGroup	(	Actor	actor,
		bool	isFocusGroup
	)

Sets whether an actor is a focus group that can limit the scope of focus movement to its child actors in the focus chain.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor	The actor to be set as a focus group
isFocusGroup	Whether to set the actor to be a focus group or not

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

void Dali::Toolkit::AccessibilityManager::SetFocusIndicatorActor ( Actor indicator )

Sets the focus indicator actor.

This will replace the default focus indicator actor in AccessibilityManager and will be added to the focused actor as a highlight.

Since:: 3.0, DALi version 1.0.0

Parameters:

indicator The indicator actor to be added

Precondition:: The AccessibilityManager has been initialized.; The indicator actor has been initialized.

void Dali::Toolkit::AccessibilityManager::SetFocusOrder	(	Actor	actor,
		const unsigned int	order
	)

Sets the focus order of the actor.

The focus order of each actor in the focus chain is unique. If there is another actor assigned with the same focus order already, the new actor will be inserted to the focus chain with that focus order, and the focus order of the original actor and all the actors followed in the focus chain will be increased accordingly. If the focus order assigned to the actor is 0, it means that actor's focus order is undefined (e.g. the actor has a description but with no focus order being set yet) and therefore that actor is not focusable.

Since:: 3.0, DALi version 1.0.0

Parameters:

actor	The actor the focus order to be set with
order	The focus order of the actor

Precondition:: The AccessibilityManager has been initialized.; The Actor has been initialized.

void Dali::Toolkit::AccessibilityManager::SetGroupMode ( bool enabled )

Sets whether the group mode is enabled or not.

When the group mode is enabled, the focus movement will be limited to the child actors of the current focus group including the current focus group itself. The current focus group is the closest ancestor of the current focused actor that is set as a focus group.

Since:: 3.0, DALi version 1.0.0

Parameters:

enabled Whether the group mode is enabled or not

Precondition:: The AccessibilityManager has been initialized.

void Dali::Toolkit::AccessibilityManager::SetWrapMode ( bool wrapped )

Sets whether focus will be moved to the beginning of the focus chain when it reaches the end or vice versa.

When both the wrap mode and the group mode are enabled, focus will be wrapped within the current focus group. Focus will not be wrapped in default.

Since:: 3.0, DALi version 1.0.0

Parameters:

wrapped Whether the focus movement is wrapped around or not

Precondition:: The AccessibilityManager has been initialized.

AccessibilityActionSignalType& Dali::Toolkit::AccessibilityManager::StatusChangedSignal ( )

This is emitted when accessibility(screen-reader) feature turned on or off.

A callback of the following type may be connected:

   bool YourCallback( AccessibilityManager& manager );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

Public Types

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Static Public Member Functions

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