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ContentAccess::CAgentContent Class Reference

class ContentAccess::CAgentContent : public CBase

Defines the agent interface allowing clients to browse the objects within a file

Inherits from

ContentAccess::CAgentContent
- CBase

Public Member Functions
TInt	AgentSpecificCommand ( TInt , const TDesC8 &, TDes8 &)
void	AgentSpecificCommand ( TInt , const TDesC8 &, TDes8 &, TRequestStatus &)
TInt	CancelNotifyStatusChange ( TRequestStatus &, const TDesC &)
TInt	CancelRequestRights ( TRequestStatus &, const TDesC &)
TInt	CloseContainer ()
void	DisplayInfoL ( TDisplayInfo , const TDesC &)
TInt	GetAttribute ( TInt , TInt &, const TDesC &)
TInt	GetAttributeSet ( RAttributeSet &, const TDesC &)
void	GetEmbeddedObjectsL ( RStreamablePtrArray < CEmbeddedObject > &)
void	GetEmbeddedObjectsL ( RStreamablePtrArray < CEmbeddedObject > &, TEmbeddedType )
TInt	GetStringAttribute ( TInt , TDes &, const TDesC &)
TInt	GetStringAttributeSet (RStringAttributeSet &, const TDesC &)
void	NotifyStatusChange ( TEventMask , TRequestStatus &, const TDesC &)
TInt	OpenContainer (const TDesC &)
void	RequestRights ( TRequestStatus &, const TDesC &)
TInt	Search ( RStreamablePtrArray < CEmbeddedObject > &, const TDesC8 &, TBool )
TInt	SetProperty ( TAgentProperty , TInt )

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Member Functions Documentation

AgentSpecificCommand(TInt, const TDesC8 &, TDes8 &)

TInt	AgentSpecificCommand	(	TInt	aCommand,
			const TDesC8 &	aInputBuffer,
			TDes8 &	aOutputBuffer
		)	[pure virtual]

Allows extended synchronous calls to the CAF agent handling this file

Applications familiar with the agent can pass objects in and out using serialization.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

TInt aCommand	The agent defined command.
const TDesC8 & aInputBuffer	Non modifyable input data buffer.
TDes8 & aOutputBuffer	Modifyable output buffer to hold the result of the command.

AgentSpecificCommand(TInt, const TDesC8 &, TDes8 &, TRequestStatus &)

void	AgentSpecificCommand	(	TInt	aCommand,
			const TDesC8 &	aInputBuffer,
			TDes8 &	aOutputBuffer,
			TRequestStatus &	aStatus
		)	[pure virtual]

Allows extended synchronous calls to the CAF agent handling this file. Applications familiar with the agent can pass objects in and out using serialization. NB: No assumption should be made about the scope of the descriptor passed to aInputBuffer for asynchronous IPC.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

TInt aCommand	The agent defined command.
const TDesC8 & aInputBuffer	Non modifyable input data buffer.
TDes8 & aOutputBuffer	Modifyable output buffer to hold the result of the command.
TRequestStatus & aStatus	Asynchronous request status. On completion this will contain one of the following error codes: KErrNone if the command was successfully executed. KErrCANotSupported if the agent does not recognize the command. KErrOverflow if the output buffer supplied is too small. KErrPermissionDenied if the agent does not allow the client to execute the command. Otherwise one of the other CAF error codes defined in caferr.h or one of the other system-wide error codes for any other errors.

CancelNotifyStatusChange(TRequestStatus &, const TDesC &)

TInt	CancelNotifyStatusChange	(	TRequestStatus &	aStatus,
			const TDesC &	aUniqueId
		)	[pure virtual]

Cancel a previous notification request

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

TRequestStatus & aStatus	The TRequestStatus supplied in the call to NotifyStatusChange().
const TDesC & aUniqueId	The UniqueId of the content object within the file.

CancelRequestRights(TRequestStatus &, const TDesC &)

TInt	CancelRequestRights	(	TRequestStatus &	aStatus,
			const TDesC &	aUniqueId
		)	[pure virtual]

Cancel a previous RequestRights() request

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

TRequestStatus & aStatus	The TRequestStatus that was supplied to the RequestRights() function.
const TDesC & aUniqueId	The objects Unique Id that was supplied to the RequestRights() function.

CloseContainer()

TInt

CloseContainer

(

)

[pure virtual]

Close the current container object and go back to previous enclosing container within the file.

Allows an application to access the content objects and any nested container objects within parent container

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

DisplayInfoL(TDisplayInfo, const TDesC &)

void	DisplayInfoL	(	TDisplayInfo	aInfo,
			const TDesC &	aUniqueId
		)	[pure virtual]

View information associated with a single content object

This call blocks execution and only returns once the display is dismissed by the user.

leave: KErrCANotSupported if information cannot be displayed or does not exist.

leave: ... One of the other CAF error codes defined in caferr.h or one of the system-wide error codes for any other errors.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted.

Parameters

TDisplayInfo aInfo	The information to display.
const TDesC & aUniqueId	The unique id of the object within the file.

GetAttribute(TInt, TInt &, const TDesC &)

TInt	GetAttribute	(	TInt	aAttribute,
			TInt &	aValue,
			const TDesC &	aUniqueId
		)	[pure virtual]

Get an attribute for an object within the file

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted.

Parameters

TInt aAttribute	The attribute to query, from ContentAccess::TAttribute.
TInt & aValue	Used to return the attribute value.
const TDesC & aUniqueId	The UniqueId of the object within the file.

GetAttributeSet(RAttributeSet &, const TDesC &)

TInt	GetAttributeSet	(	RAttributeSet &	aAttributeSet,
			const TDesC &	aUniqueId
		)	[pure virtual]

Get a set of attributes for an object within the file

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted.

Parameters

RAttributeSet & aAttributeSet	The set of attributes to query and update.
const TDesC & aUniqueId	The unique ID of the object within the file.

GetEmbeddedObjectsL(RStreamablePtrArray< CEmbeddedObject > &)

void

GetEmbeddedObjectsL

(

RStreamablePtrArray < CEmbeddedObject > &

aArray

)

[pure virtual]

List all the embedded container objects and content objects within the current container

The UniqueId() member of CEmbeddedObject can be used to refer directly to a particular object within the file.

leave: KErrPermissionDenied if the access to the protected content is not permitted by the CAF Agent.

leave: ... One of the CAF error codes defined in caferr.h or one of the other system-wide error codes for any other errors.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

RStreamablePtrArray < CEmbeddedObject > & aArray

The array to be populated with the embedded objects.

GetEmbeddedObjectsL(RStreamablePtrArray< CEmbeddedObject > &, TEmbeddedType)

void	GetEmbeddedObjectsL	(	RStreamablePtrArray < CEmbeddedObject > &	aArray,
			TEmbeddedType	aType
		)	[pure virtual]

List all the embedded objects within the current container that are of the specified type

leave: KErrPermissionDenied If the access to the protected content is not permitted by the CAF Agent.

leave: ... One of the CAF error codes defined in caferr.h or one of the other system-wide error codes for any other errors.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

RStreamablePtrArray < CEmbeddedObject > & aArray	The array to be populated with the embedded objects.
TEmbeddedType aType	The type of objects to list.

GetStringAttribute(TInt, TDes &, const TDesC &)

TInt	GetStringAttribute	(	TInt	aAttribute,
			TDes &	aValue,
			const TDesC &	aUniqueId
		)	[pure virtual]

Get text string attributes or meta-data for an object within the file

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted.

Parameters

TInt aAttribute	The attribute to query, from ContentAccess::TStringAttribute.
TDes & aValue	Returns the value of the attribute.
const TDesC & aUniqueId	The UniqueId of the object within the file.

GetStringAttributeSet(RStringAttributeSet &, const TDesC &)

TInt	GetStringAttributeSet	(	RStringAttributeSet &	aStringAttributeSet,
			const TDesC &	aUniqueId
		)	[pure virtual]

Used to obtain a set of string attributes for an object within the file

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted.

Parameters

RStringAttributeSet & aStringAttributeSet	The set of attributes to query and update.
const TDesC & aUniqueId	The UniqueId of the container or content.

NotifyStatusChange(TEventMask, TRequestStatus &, const TDesC &)

void	NotifyStatusChange	(	TEventMask	aMask,
			TRequestStatus &	aStatus,
			const TDesC &	aUniqueId
		)	[pure virtual]

Request notification for an event for an object within the file. NB: No assumption should be made about the scope of the descriptor passed to aUniqueId for asynchronous IPC.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

TEventMask aMask	Bitmask of events the caller is interested in.
TRequestStatus & aStatus	The TRequestStatus object to complete if the event occurs.
const TDesC & aUniqueId	The UniqueId of the container or content.

OpenContainer(const TDesC &)

TInt

OpenContainer

(

const TDesC &

aUniqueId

)

[pure virtual]

Open a Container object within the file.

Allows an application to access the content objects and any nested container objects within the specified container.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

const TDesC & aUniqueId

The container object's unique ID.

RequestRights(TRequestStatus &, const TDesC &)

void	RequestRights	(	TRequestStatus &	aStatus,
			const TDesC &	aUniqueId
		)	[pure virtual]

Request the agent to obtain rights for a protected content object. NB: No assumption should be made about the scope of the descriptor passed to aUniqueId for asynchronous IPC.

This request may be handled differently by different agents. Some agents may open a browser and direct the user to a URL. Others may download and install the rights in the background.

The call should not block execution, applications can wait for a notification if they are interested in the outcome.

If a rights request completes sucessfully it does not necessarily mean rights are available. It just means the request is complete.

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted.

Parameters

TRequestStatus & aStatus	Asynchronous request status. On completion this will contain one of the following error codes: KErrNone if the rights request was successful. KErrCANotSupported if the agent does not allow rights requests. Otherwise one of the other CAF error codes defined in caferr.h or one of the other system-wide error codes for any other errors.
const TDesC & aUniqueId	The unique id of the object within the file.

Search(RStreamablePtrArray< CEmbeddedObject > &, const TDesC8 &, TBool)

TInt	Search	(	RStreamablePtrArray < CEmbeddedObject > &	aArray,
			const TDesC8 &	aMimeType,
			TBool	aRecursive
		)	[pure virtual]

Search the current container for content objects with a particular mime type

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

RStreamablePtrArray < CEmbeddedObject > & aArray	The array to store the results of the search. The agent will add CEmbeddedObject objects to the supplied array.
const TDesC8 & aMimeType	The mime type to search for.
TBool aRecursive	ETrue to search inside containers embedded within the current container, EFalse to search only the current container.

SetProperty(TAgentProperty, TInt)

TInt	SetProperty	(	TAgentProperty	aProperty,
			TInt	aValue
		)	[pure virtual]

Allows an application to request the modification of a property within the agent handling this content. The agent may or may not permit the property to be changed

capability: DRM Access to DRM protected content is not permitted for processes without DRM capability. Access to unprotected content is unrestricted

Parameters

TAgentProperty aProperty	The property to set.
TInt aValue	The value of the property.