albert::WeakDependency< T > Class Template Reference

#include <albert/plugindependency.h>

Inheritance diagram for albert::WeakDependency< T >:

Detailed Description

template<class T>
class albert::WeakDependency< T >

Convenience holder class for plugin soft dependencies.

Watches for (de)registration of an extension id of type T. On (de)registration of the dependency the pointer is updated and the callback called.

If you use this class you may want to lock a mutex against a query handler or an action. This should not be necessary since the plugin loader and the extension registry must not be accessed while a session query is running. Take care though if you defer the execution of the action using a timer or similar.

Public Member Functions
	WeakDependency (const QString &id, std::function< void(bool)> on_registered={})
	Constructs a WeakDependency with id and callback on_registered.
	~WeakDependency ()
Public Member Functions inherited from albert::Dependency< T >
	operator T () const
	operator bool () const
const T *	operator-> () const
T *	operator-> ()
const T *	get () const
T *	get ()

Public Attributes
std::function< void(bool)>	callback

Additional Inherited Members
Protected Attributes inherited from albert::Dependency< T >
T *	dependency_ = nullptr

Constructor & Destructor Documentation

WeakDependency()

template<class T >

albert::WeakDependency< T >::WeakDependency ( const QString &  id, std::function< void(bool)>  on_registered = {}  )

inlineexplicit

Constructs a WeakDependency with id and callback on_registered.

~WeakDependency()

template<class T >

albert::WeakDependency< T >::~WeakDependency ( )

inline

Member Data Documentation

callback

template<class T >

std::function<void(bool)> albert::WeakDependency< T >::callback

---

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

• workspace/albert/include/albert/plugindependency.h