QQmlComponentIncubator Class Reference

Inheritance diagram for QQmlComponentIncubator:

Collaboration diagram for QQmlComponentIncubator:

Public Member Functions
	QQmlComponentIncubator (QV4::Heap::QmlIncubatorObject *inc, IncubationMode mode)
void	statusChanged (Status s) override
	Called when the status of the incubator changes.
void	setInitialState (QObject *o) override
	Called after the object is first created, but before complex property bindings are evaluated and, if applicable, QQmlParserStatus::componentComplete() is called.
Public Member Functions inherited from QQmlIncubator
	QQmlIncubator (IncubationMode=Asynchronous)
	Create a new incubator with the specified mode.
virtual	~QQmlIncubator ()
void	clear ()
	Clears the incubator.
void	forceCompletion ()
	Force any in-progress incubation to finish synchronously.
bool	isNull () const
	Returns true if the incubator's status() is Null.
bool	isReady () const
	Returns true if the incubator's status() is Ready.
bool	isError () const
	Returns true if the incubator's status() is Error.
bool	isLoading () const
	Returns true if the incubator's status() is Loading.
QList< QQmlError >	errors () const
	Return the list of errors encountered while incubating the object.
IncubationMode	incubationMode () const
	Return the incubation mode passed to the QQmlIncubator constructor.
Status	status () const
	Return the current status of the incubator.
QObject *	object () const
	Return the incubated object if the status is Ready, otherwise 0.
void	setInitialProperties (const QVariantMap &initialProperties)
	Stores a mapping from property names to initial values, contained in initialProperties, with which the incubated component will be initialized.

Public Attributes
QV4::PersistentValue	incubatorObject

Additional Inherited Members
Public Types inherited from QQmlIncubator
enum	IncubationMode { Asynchronous , AsynchronousIfNested , Synchronous }
	Specifies the mode the incubator operates in. More...
enum	Status { Null , Ready , Loading , Error }
	Specifies the status of the QQmlIncubator. More...

Detailed Description

Definition at line 1586 of file qqmlcomponent.cpp.

Constructor & Destructor Documentation

QQmlComponentIncubator()

QQmlComponentIncubator::QQmlComponentIncubator ( QV4::Heap::QmlIncubatorObject * inc, IncubationMode mode )

inline

Definition at line 1589 of file qqmlcomponent.cpp.

References incubatorObject, and QV4::PersistentValue::set().

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Member Function Documentation

setInitialState()

void QQmlComponentIncubator::setInitialState ( QObject * object )

inlineoverridevirtual

Called after the object is first created, but before complex property bindings are evaluated and, if applicable, QQmlParserStatus::componentComplete() is called.

This is equivalent to the point between QQmlComponent::beginCreate() and QQmlComponent::completeCreate(), and can be used to assign initial values to the object's properties.

The default implementation does nothing.

Note

Simple bindings such as numeric literals are evaluated before setInitialState() is called. The categorization of bindings into simple and complex ones is intentionally unspecified and may change between versions of Qt and depending on whether and how you are using \l{qmlcachegen}. You should not rely on any particular binding to be evaluated either before or after setInitialState() is called. For example, a constant expression like {MyType.EnumValue} may be recognized as such at compile time or deferred to be executed as binding. The same holds for constant expressions like {-(5)} or {"a" + " constant string"}.

Reimplemented from QQmlIncubator.

Definition at line 1601 of file qqmlcomponent.cpp.

References QV4::PersistentValue::as(), d, QV4::PersistentValue::engine(), QQmlIncubatorPrivate::get(), i, incubatorObject, and o.

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statusChanged()

void QQmlComponentIncubator::statusChanged ( Status status )

inlineoverridevirtual

Called when the status of the incubator changes.

status is the new status.

The default implementation does nothing.

Reimplemented from QQmlIncubator.

Definition at line 1595 of file qqmlcomponent.cpp.

References QV4::PersistentValue::as(), QV4::PersistentValue::engine(), i, and incubatorObject.

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Member Data Documentation

incubatorObject

QV4::PersistentValue QQmlComponentIncubator::incubatorObject

Definition at line 1608 of file qqmlcomponent.cpp.

Referenced by QQmlComponentIncubator(), setInitialState(), and statusChanged().

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The documentation for this class was generated from the following file:

• qtdeclarative/src/qml/qml/qqmlcomponent.cpp (19b09affee8698f80d386e3b286753974f6bf10a)