Detailed Description

Manages the system's stack of modal components.

Normally you'll just use the Component methods to invoke modal states in components, and won't have to deal with this class directly, but this is the singleton object that's used internally to manage the stack.

See also: Component::enterModalState, Component::exitModalState, Component::isCurrentlyModal, Component::getCurrentlyModalComponent, Component::isCurrentlyBlockedByAnotherModalComponent

Inheritance diagram for juce::ModalComponentManager:

Classes
class	Callback
	Receives callbacks when a modal component is dismissed. More...
class	Key

Public Member Functions
int	getNumModalComponents () const
	Returns the number of components currently being shown modally.
Component *	getModalComponent (int index) const
	Returns one of the components being shown modally.
bool	isModal (const Component *component) const
	Returns true if the specified component is in a modal state.
bool	isFrontModalComponent (const Component *component) const
	Returns true if the specified component is currently the topmost modal component.
void	attachCallback (Component component, Callback callback)
	Adds a new callback that will be called when the specified modal component is dismissed.
void	bringModalComponentsToFront (bool topOneShouldGrabFocus=true)
	Brings any modal components to the front.
bool	cancelAllModalComponents ()
	Calls exitModalState (0) on any components that are currently modal.
int	runEventLoopForCurrentComponent ()
	Runs the event loop until the currently topmost modal component is dismissed, and returns the exit code for that component.
void	startModal (Key, Component *, bool autoDelete)
void	endModal (Key, Component *, int returnValue)

Protected Member Functions
	ModalComponentManager ()
	Creates a ModalComponentManager.
	~ModalComponentManager () override
	Destructor.
void	handleAsyncUpdate () override
	Called back to do whatever your class needs to do.

Constructors and Destructors

◆ ModalComponentManager()

juce::ModalComponentManager::ModalComponentManager ( )

protected

Creates a ModalComponentManager.

You shouldn't ever call the constructor - it's a singleton, so use ModalComponentManager::getInstance()

Referenced by handleAsyncUpdate().

◆ ~ModalComponentManager()

juce::ModalComponentManager::~ModalComponentManager ( )

overrideprotected

Destructor.

Member Functions

◆ getNumModalComponents()

int juce::ModalComponentManager::getNumModalComponents ( ) const

Returns the number of components currently being shown modally.

See also: getModalComponent

References getNumModalComponents().

Referenced by getNumModalComponents().

◆ getModalComponent()

Component * juce::ModalComponentManager::getModalComponent ( int index ) const

Returns one of the components being shown modally.

An index of 0 is the most recently-shown, topmost component.

References getModalComponent().

Referenced by getModalComponent().

◆ isModal()

bool juce::ModalComponentManager::isModal ( const Component * component ) const

Returns true if the specified component is in a modal state.

References isModal().

Referenced by isModal().

◆ isFrontModalComponent()

bool juce::ModalComponentManager::isFrontModalComponent ( const Component * component ) const

Returns true if the specified component is currently the topmost modal component.

References isFrontModalComponent().

Referenced by isFrontModalComponent().

◆ attachCallback()

void juce::ModalComponentManager::attachCallback	(	Component *	component,
		Callback *	callback )

Adds a new callback that will be called when the specified modal component is dismissed.

If the component is modal, then when it is dismissed, either by being hidden, or by calling Component::exitModalState(), then the Callback::modalStateFinished() method will be called.

Each component can have any number of callbacks associated with it, and this one is added to that list.

The object that is passed in will be deleted by the manager when it's no longer needed. If the given component is not currently modal, the callback object is deleted immediately and no action is taken.

References attachCallback().

Referenced by attachCallback().