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QDrmContentLicense Class Reference
[QtBaseModule]

The QDrmContentLicense class provides an interface for DRM agents to monitor the consumption of DRM content. More...

    #include <QDrmContentLicense>

Inherits QObject.

• List of all members, including inherited members

Public Functions

• QDrmContentLicense ()
• virtual ~QDrmContentLicense ()
• virtual QContent content () const = 0
• virtual QDrmRights::Permission permission () const = 0
• virtual QDrmContent::RenderState renderState () const = 0

• 29 public functions inherited from QObject

Public Slots

• virtual void renderStateChanged ( const QContent & content, QDrmContent::RenderState state ) = 0

• 1 public slot inherited from QObject

Signals

• void rightsExpired ( const QContent & content, QDrmRights::Permission permission )

• 1 signal inherited from QObject

Additional Inherited Members

• 1 property inherited from QObject
• 1 public type inherited from QObject
• 4 static public members inherited from QObject
• 7 protected functions inherited from QObject
• 2 protected variables inherited from QObject

Detailed Description

The QDrmContentLicense class provides an interface for DRM agents to monitor the consumption of DRM content.

A DRM content license provides the interface through which a consuming application will notify a DRM agent of when consumption of an item of content begins, ends, and pauses.

Before opening a DRM protected file an application will request an instance of QDrmContentLicense from a DRM agent. If a license is sucessfully granted the application will attempt to open the file and begin making calls to QDrmContentLicense::renderStateChanged() reflecting the consumption of the content. If the content's rights expire while the content is being rendered the content license will emit the QDrmContentLicense::rightsExpired() signal.

Applications should not request a content license directly, instead licenses should be requested using QDrmContent.

See also QDrmContent and QDrmContentPlugin.

Member Function Documentation

QDrmContentLicense::QDrmContentLicense ()

Constructs a ContentLicense object for an item of DRM protected content.

QDrmContentLicense::~QDrmContentLicense ()   [virtual]

Destroys a QDrmContentLicense object. If the paired monitor is still consuming the content it is sent a message to release the content.

QContent QDrmContentLicense::content () const   [pure virtual]

Returns the content the license has been granted for.

QDrmRights::Permission QDrmContentLicense::permission () const   [pure virtual]

Returns the usage permission the license has been granted for.

QDrmContent::RenderState QDrmContentLicense::renderState () const   [pure virtual]

Returns the current render state of the content the license has been granted for.

See also renderStateChanged().

void QDrmContentLicense::renderStateChanged ( const QContent & content, QDrmContent::RenderState state )   [pure virtual slot]

Notifies the drm agent that the render state of content has changed to state and the rights should be updated accordingly.

See also renderState().

void QDrmContentLicense::rightsExpired ( const QContent & content, QDrmRights::Permission permission )   [signal]

Signals that the license to render content with the given permission has expired.