#include <berryIContextService.h>

Inheritance diagram for berry::IContextService:

Collaboration diagram for berry::IContextService:

Public Types
enum	ShellType { TYPE_DIALOG, TYPE_NONE, TYPE_WINDOW }

Public Types inherited from berry::Object
typedef Object	Self

typedef berry::SmartPointer< Self >	Pointer

typedef berry::SmartPointer< const Self >	ConstPointer

typedef berry::WeakPointer< Self >	WeakPtr

typedef berry::WeakPointer< const Self >	ConstWeakPtr

Public Member Functions
virtual SmartPointer< IContextActivation >	ActivateContext (const QString &contextId)=0

virtual SmartPointer< IContextActivation >	ActivateContext (const QString &contextId, const SmartPointer< Expression > &expression)=0

virtual SmartPointer< IContextActivation >	ActivateContext (const QString &contextId, const SmartPointer< Expression > &expression, bool global)=0

virtual void	AddContextManagerListener (IContextManagerListener *listener)=0

virtual void	DeactivateContext (const SmartPointer< IContextActivation > &activation)=0

virtual void	DeactivateContexts (const QList< SmartPointer< IContextActivation > > &activations)=0

virtual QList< QString >	GetActiveContextIds () const =0

virtual SmartPointer< Context >	GetContext (const QString &contextId) const =0

virtual QList< SmartPointer< Context > >	GetDefinedContexts () const =0

virtual QList< QString >	GetDefinedContextIds () const =0

virtual ShellType	GetShellType (const SmartPointer< Shell > &shell) const =0

virtual ShellType	GetShellType (QWidget *widget) const =0

virtual void	ReadRegistry ()=0

virtual bool	RegisterShell (const SmartPointer< Shell > &shell, ShellType type)=0

virtual void	RemoveContextManagerListener (IContextManagerListener *listener)=0

virtual bool	UnregisterShell (const SmartPointer< Shell > &shell)=0

virtual void	DeferUpdates (bool defer)=0

Public Member Functions inherited from berry::IServiceWithSources
	berryObjectMacro (berry::IServiceWithSources)~IServiceWithSources()

virtual void	AddSourceProvider (const SmartPointer< ISourceProvider > &provider)=0

virtual void	RemoveSourceProvider (const SmartPointer< ISourceProvider > &provider)=0

Public Member Functions inherited from berry::IDisposable
	berryObjectMacro (berry::IDisposable)~IDisposable()

virtual void	Dispose ()=0

Public Member Functions inherited from berry::Object
virtual QString	GetClassName () const

virtual Reflection::TypeInfo	GetTypeInfo () const

virtual QList< Reflection::TypeInfo >	GetSuperclasses () const

virtual void	Delete ()

QDebug	Print (QDebug os, Indent Indent=0) const

virtual QString	ToString () const

virtual uint	HashCode () const

virtual bool	operator< (const Object *) const

void	Register () const

void	UnRegister (bool del=true) const

int	GetReferenceCount () const

void	SetReferenceCount (int)

void	AddDestroyListener (const MessageAbstractDelegate<> &delegate) const

void	RemoveDestroyListener (const MessageAbstractDelegate<> &delegate) const

virtual bool	operator== (const Object *) const

Static Public Attributes
static const QString	CONTEXT_ID_WORKBENCH_MENU

static const QString	CONTEXT_ID_DIALOG

static const QString	CONTEXT_ID_DIALOG_AND_WINDOW

static const QString	CONTEXT_ID_WINDOW

Additional Inherited Members
Static Public Member Functions inherited from berry::Object
static const char *	GetStaticClassName ()

static Reflection::TypeInfo	GetStaticTypeInfo ()

static QList< Reflection::TypeInfo >	GetStaticSuperclasses ()

Protected Member Functions inherited from berry::Object
	Object ()

virtual	~Object ()

virtual QDebug	PrintSelf (QDebug os, Indent indent) const

virtual QDebug	PrintHeader (QDebug os, Indent indent) const

virtual QDebug	PrintTrailer (QDebug os, Indent indent) const

Protected Attributes inherited from berry::Object
QAtomicInt	m_ReferenceCount

QMutex	m_ReferenceCountLock

Detailed Description

Provides services related to contexts in the blueberry workbench. This provides access to contexts.

This service can be acquired from your service locator:

  IContextService service = (IContextService) getSite().getService(IContextService.class);

This service is available globally.

This interface is not intended to be extended by clients. This interface is not intended to be implemented by clients.

Definition at line 49 of file berryIContextService.h.

Member Enumeration Documentation

enum berry::IContextService::ShellType

Enumerator
TYPE_DIALOG	The type used for registration indicating that the shell should be treated as a dialog. When the given shell is active, the "In Dialogs" context should also be active.
TYPE_NONE	The type used for registration indicating that the shell should not receive any key bindings be default. When the given shell is active, we should not provide any `EnabledSubmission` instances for the "In Dialogs" or "In Windows" contexts.
TYPE_WINDOW	The type used for registration indicating that the shell should be treated as a window. When the given shell is active, the "In Windows" context should also be active.

Definition at line 75 of file berryIContextService.h.

Member Function Documentation

virtual SmartPointer<IContextActivation> berry::IContextService::ActivateContext ( const QString & contextId )

pure virtual

Activates the given context within the context of this service. If this service was retrieved from the workbench, then this context will be active globally. If the service was retrieved from a nested component, then the context will only be active within that component.

Also, it is guaranteed that the contexts submitted through a particular service will be cleaned up when that services is destroyed. So, for example, a service retrieved from a IWorkbenchPartSite would deactivate all of its contexts when the site is destroyed.

Parameters

contextId The identifier for the context which should be activated; must not be null.

Returns: A token which can be used to later cancel the activation. Only someone with access to this token can cancel the activation. The activation will automatically be cancelled if the context from which this service was retrieved is destroyed.

virtual SmartPointer<IContextActivation> berry::IContextService::ActivateContext	(	const QString &	contextId,
		const SmartPointer< Expression > &	expression
	)

pure virtual

Activates the given context within the context of this service. The context becomes active when expression evaluates to true. This is the same as calling activateContext(String, Expression, boolean) with global==false.

Also, it is guaranteed that the context submitted through a particular service will be cleaned up when that services is destroyed. So, for example, a service retrieved from a IWorkbenchPartSite would deactivate all of its handlers when the site is destroyed.

Parameters

contextId	The identifier for the context which should be activated; must not be `null`.
expression	This expression must evaluate to `true` before this context will really become active. The expression may be `null` if the context should always be active.

Returns: A token which can be used to later cancel the activation. Only someone with access to this token can cancel the activation. The activation will automatically be cancelled if the context from which this service was retrieved is destroyed.

See also: ISources

virtual SmartPointer<IContextActivation> berry::IContextService::ActivateContext	(	const QString &	contextId,
		const SmartPointer< Expression > &	expression,
		bool	global
	)

pure virtual

Activates the given context within the context of this service. The context becomes active when expression evaluates to true. If global==false then this service must also be the active service to activate the context.

Also, it is guaranteed that the context submitted through a particular service will be cleaned up when that services is destroyed. So, for example, a service retrieved from a IWorkbenchPartSite would deactivate all of its handlers when the site is destroyed.

Parameters

contextId	The identifier for the context which should be activated; must not be `null`.
expression	This expression must evaluate to `true` before this context will really become active. The expression may be `null` if the context should always be active.
global	Indicates that the handler should be activated irrespectively of whether the corresponding workbench component (e.g., window, part, etc.) is active.

Returns: A token which can be used to later cancel the activation. Only someone with access to this token can cancel the activation. The activation will automatically be cancelled if the context from which this service was retrieved is destroyed.

See also: ISources

virtual void berry::IContextService::AddContextManagerListener ( IContextManagerListener * listener )

pure virtual

Adds a listener to this context service. The listener will be notified when the set of defined contexts changes. This can be used to track the global appearance and disappearance of contexts.

Note: listeners should be removed when no longer necessary. If not, they will be removed when the IServiceLocator used to acquire this service is disposed.

Parameters

listener The listener to attach; must not be null.

See also: RemoveContextManagerListener(IContextManagerListener*)

virtual void berry::IContextService::DeactivateContext ( const SmartPointer< IContextActivation > & activation )

pure virtual

Deactivates the given context within the context of this service. If the handler was context with a different service, then it must be deactivated from that service instead. It is only possible to retract a context activation with this method. That is, you must have the same IContextActivation used to activate the context.

Parameters

activation The token that was returned from a call to activateContext; must not be null.

virtual void berry::IContextService::DeactivateContexts ( const QList< SmartPointer< IContextActivation > > & activations )

pure virtual

Deactivates the given contexts within the context of this service. If the contexts were activated with a different service, then they must be deactivated from that service instead. It is only possible to retract context activations with this method. That is, you must have the same IContextActivation instances used to activate the contexts.

Parameters

activations The tokens that were returned from a call to activateContext. This collection must only contain instances of IContextActivation. The collection must not be null.

virtual void berry::IContextService::DeferUpdates ( bool defer )

pure virtual

Informs the service that a batch operation has started.

Note: You must insure that if you call deferUpdates(true) that nothing in your batched operation will prevent the matching call to deferUpdates(false).

Parameters

defer true when starting a batch operation false when ending the operation

virtual QList<QString> berry::IContextService::GetActiveContextIds ( ) const

pure virtual

Returns the set of active context identifiers.

Returns: The set of active context identifiers; this value may be null if no active contexts have been set yet. If the set is not null, then it contains only instances of String.

virtual SmartPointer<Context> berry::IContextService::GetContext ( const QString & contextId ) const

pure virtual

Retrieves the context with the given identifier. If no such context exists, then an undefined context with the given id is created.

Parameters

contextId The identifier to find; must not be null.

Returns: A context with the given identifier, either defined or undefined.

virtual QList<QString> berry::IContextService::GetDefinedContextIds ( ) const

pure virtual

Returns the collection of the identifiers for all of the defined contexts in the workbench.

Returns: The collection of context identifiers (String) that are defined; never null, but may be empty.

virtual QList<SmartPointer<Context> > berry::IContextService::GetDefinedContexts ( ) const

pure virtual

Returns the collection of all of the defined contexts in the workbench.

Returns: The collection of contexts (Context) that are defined; never null, but may be empty.

virtual ShellType berry::IContextService::GetShellType ( const SmartPointer< Shell > & shell ) const

pure virtual

Returns the shell type for the given shell.

Parameters

shell The shell for which the type should be determined. If this value is null, then IContextService.TYPE_NONE is returned.

Returns: IContextService.TYPE_WINDOW, IContextService.TYPE_DIALOG, or IContextService.TYPE_NONE.

virtual ShellType berry::IContextService::GetShellType ( QWidget * widget ) const

pure virtual

virtual void berry::IContextService::ReadRegistry ( )

pure virtual

Reads the context information from the registry and the preferences. This will overwrite any of the existing information in the context service. This method is intended to be called during start-up. When this method completes, this context service will reflect the current state of the registry and preference store.

virtual bool berry::IContextService::RegisterShell	(	const SmartPointer< Shell > &	shell,
		ShellType	type
	)

pure virtual

Registers a shell to automatically promote or demote some basic types of contexts. The "In Dialogs" and "In Windows" contexts are provided by the system. This a convenience method to ensure that these contexts are promoted when the given is shell is active.

If a shell is registered as a window, then the "In Windows" context is enabled when that shell is active. If a shell is registered as a dialog – or is not registered, but has a parent shell – then the "In Dialogs" context is enabled when that shell is active. If the shell is registered as none – or is not registered, but has no parent shell – then the neither of the contexts will be enabled (by us – someone else can always enabled them).

If the provided shell has already been registered, then this method will change the registration.

Parameters

shell	The shell to register for key bindings; must not be `null`.
type	The type of shell being registered. This value must be one of the constants given in this interface.

Returns: true if the shell had already been registered (i.e., the registration has changed); false otherwise.

virtual void berry::IContextService::RemoveContextManagerListener ( IContextManagerListener * listener )

pure virtual

Removes a listener from this context service.

Parameters

listener The listener to be removed; must not be null.

virtual bool berry::IContextService::UnregisterShell ( const SmartPointer< Shell > & shell )

pure virtual

Unregisters a shell that was previously registered. After this method completes, the shell will be treated as if it had never been registered at all. If you have registered a shell, you should ensure that this method is called when the shell is disposed. Otherwise, a potential memory leak will exist.

If the shell was never registered, or if the shell is null, then this method returns false and does nothing.

Parameters

shell The shell to be unregistered; does nothing if this value is null.

Returns: true if the shell had been registered; false otherwise.

Member Data Documentation

const QString berry::IContextService::CONTEXT_ID_DIALOG

static

The identifier for the context that is active when a shell registered as a dialog.

Definition at line 61 of file berryIContextService.h.

const QString berry::IContextService::CONTEXT_ID_DIALOG_AND_WINDOW

static

The identifier for the context that is active when a shell is registered as either a window or a dialog.

Definition at line 67 of file berryIContextService.h.

const QString berry::IContextService::CONTEXT_ID_WINDOW

static

The identifier for the context that is active when a shell is registered as a window.

Definition at line 73 of file berryIContextService.h.

const QString berry::IContextService::CONTEXT_ID_WORKBENCH_MENU

static

The identifier for the context that is active when a workbench is active.

Definition at line 55 of file berryIContextService.h.

The documentation for this struct was generated from the following files:

Public Types

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

Member Function Documentation

Member Data Documentation