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Tp::StreamedMediaChannel Class Reference

The StreamedMediaChannel class represents a Telepathy channel of type StreamedMedia. More...

#include <TelepathyQt/StreamedMediaChannel>

Inherits Tp::Channel.

Public Types

enum  StateChangeReason { StateChangeReasonUnknown, StateChangeReasonUserRequested }
 
- Public Types inherited from Tp::OptionalInterfaceFactory< Channel >
enum  InterfaceSupportedChecking
 

Signals

void streamAdded (const Tp::StreamedMediaStreamPtr &stream)
 
void streamRemoved (const Tp::StreamedMediaStreamPtr &stream)
 
void streamDirectionChanged (const Tp::StreamedMediaStreamPtr &stream, Tp::MediaStreamDirection direction, Tp::MediaStreamPendingSend pendingSend)
 
void streamStateChanged (const Tp::StreamedMediaStreamPtr &stream, Tp::MediaStreamState state)
 
void streamError (const Tp::StreamedMediaStreamPtr &stream, Tp::MediaStreamError errorCode, const QString &errorMessage)
 
void localHoldStateChanged (Tp::LocalHoldState state, Tp::LocalHoldStateReason reason)
 
- Signals inherited from Tp::Channel
void groupFlagsChanged (Tp::ChannelGroupFlags flags, Tp::ChannelGroupFlags added, Tp::ChannelGroupFlags removed)
 
void groupCanAddContactsChanged (bool canAddContacts)
 
void groupCanRemoveContactsChanged (bool canRemoveContacts)
 
void groupCanRescindContactsChanged (bool canRescindContacts)
 
void groupMembersChanged (const Tp::Contacts &groupMembersAdded, const Tp::Contacts &groupLocalPendingMembersAdded, const Tp::Contacts &groupRemotePendingMembersAdded, const Tp::Contacts &groupMembersRemoved, const Tp::Channel::GroupMemberChangeDetails &details)
 
void groupHandleOwnersChanged (const Tp::HandleOwnerMap &owners, const Tp::UIntList &added, const Tp::UIntList &removed)
 
void groupSelfContactChanged ()
 
void conferenceChannelMerged (const Tp::ChannelPtr &channel)
 
void conferenceChannelRemoved (const Tp::ChannelPtr &channel, const Tp::Channel::GroupMemberChangeDetails &details)
 
- Signals inherited from Tp::DBusProxy
void invalidated (Tp::DBusProxy *proxy, const QString &errorName, const QString &errorMessage)
 
- Signals inherited from Tp::Object
void propertyChanged (const QString &propertyName)
 

Public Member Functions

virtual ~StreamedMediaChannel ()
 
bool awaitingLocalAnswer () const
 
bool awaitingRemoteAnswer () const
 
PendingOperationacceptCall ()
 
PendingOperationhangupCall ()
 
StreamedMediaStreams streams () const
 
StreamedMediaStreams streamsForType (MediaStreamType type) const
 
PendingStreamedMediaStreamsrequestStream (const ContactPtr &contact, MediaStreamType type)
 
PendingStreamedMediaStreamsrequestStreams (const ContactPtr &contact, QList< MediaStreamType > types)
 
PendingOperationremoveStream (const StreamedMediaStreamPtr &stream)
 
PendingOperationremoveStreams (const StreamedMediaStreams &streams)
 
bool handlerStreamingRequired () const
 
LocalHoldState localHoldState () const
 
LocalHoldStateReason localHoldStateReason () const
 
PendingOperationrequestHold (bool hold)
 
- Public Member Functions inherited from Tp::Channel
virtual ~Channel ()
 
ConnectionPtr connection () const
 
QVariantMap immutableProperties () const
 
QString channelType () const
 
HandleType targetHandleType () const
 
uint targetHandle () const
 
QString targetId () const
 
ContactPtr targetContact () const
 
bool isRequested () const
 
ContactPtr initiatorContact () const
 
PendingOperationrequestClose ()
 
PendingOperationrequestLeave (const QString &message=QString(), ChannelGroupChangeReason reason=ChannelGroupChangeReasonNone)
 
bool isConference () const
 
Contacts conferenceInitialInviteeContacts () const
 
QList< ChannelPtr > conferenceChannels () const
 
QList< ChannelPtr > conferenceInitialChannels () const
 
QHash< uint, ChannelPtr > conferenceOriginalChannels () const
 
bool supportsConferenceMerging () const
 
PendingOperationconferenceMergeChannel (const ChannelPtr &channel)
 
bool supportsConferenceSplitting () const
 
PendingOperationconferenceSplitChannel ()
 
ChannelGroupFlags groupFlags () const
 
bool groupCanAddContacts () const
 
bool groupCanAddContactsWithMessage () const
 
bool groupCanAcceptContactsWithMessage () const
 
PendingOperationgroupAddContacts (const QList< ContactPtr > &contacts, const QString &message=QString())
 
bool groupCanRescindContacts () const
 
bool groupCanRescindContactsWithMessage () const
 
bool groupCanRemoveContacts () const
 
bool groupCanRemoveContactsWithMessage () const
 
bool groupCanRejectContactsWithMessage () const
 
bool groupCanDepartWithMessage () const
 
PendingOperationgroupRemoveContacts (const QList< ContactPtr > &contacts, const QString &message=QString(), ChannelGroupChangeReason reason=ChannelGroupChangeReasonNone)
 
Contacts groupContacts (bool includeSelfContact=true) const
 
Contacts groupLocalPendingContacts (bool includeSelfContact=true) const
 
Contacts groupRemotePendingContacts (bool includeSelfContact=true) const
 
GroupMemberChangeDetails groupLocalPendingContactChangeInfo (const ContactPtr &contact) const
 
GroupMemberChangeDetails groupSelfContactRemoveInfo () const
 
bool groupAreHandleOwnersAvailable () const
 
HandleOwnerMap groupHandleOwners () const
 
bool groupIsSelfContactTracked () const
 
ContactPtr groupSelfContact () const
 
- Public Member Functions inherited from Tp::StatefulDBusProxy
 StatefulDBusProxy (const QDBusConnection &dbusConnection, const QString &busName, const QString &objectPath, const Feature &featureCore)
 
virtual ~StatefulDBusProxy ()
 
- Public Member Functions inherited from Tp::DBusProxy
 DBusProxy (const QDBusConnection &dbusConnection, const QString &busName, const QString &objectPath, const Feature &featureCore)
 
virtual ~DBusProxy ()
 
QDBusConnection dbusConnection () const
 
QString busName () const
 
QString objectPath () const
 
bool isValid () const
 
QString invalidationReason () const
 
QString invalidationMessage () const
 
- Public Member Functions inherited from Tp::Object
virtual ~Object ()
 
- Public Member Functions inherited from Tp::RefCounted
 RefCounted ()
 
virtual ~RefCounted ()
 
- Public Member Functions inherited from Tp::ReadyObject
 ReadyObject (RefCounted *object, const Feature &featureCore)
 
 ReadyObject (DBusProxy *proxy, const Feature &featureCore)
 
virtual ~ReadyObject ()
 
virtual bool isReady (const Features &features=Features()) const
 
virtual PendingReadybecomeReady (const Features &requestedFeatures=Features())
 
virtual Features requestedFeatures () const
 
virtual Features actualFeatures () const
 
virtual Features missingFeatures () const
 
- Public Member Functions inherited from Tp::OptionalInterfaceFactory< Channel >
 OptionalInterfaceFactory (Channel *this_)
 
 ~OptionalInterfaceFactory ()
 
QStringList interfaces () const
 
bool hasInterface (const QString &name) const
 
Interface * optionalInterface (InterfaceSupportedChecking check=CheckInterfaceSupported) const
 
Interface * interface () const
 

Static Public Member Functions

static StreamedMediaChannelPtr create (const ConnectionPtr &connection, const QString &objectPath, const QVariantMap &immutableProperties)
 
- Static Public Member Functions inherited from Tp::Channel
static ChannelPtr create (const ConnectionPtr &connection, const QString &objectPath, const QVariantMap &immutableProperties)
 
- Static Public Member Functions inherited from Tp::StatefulDBusProxy
static QString uniqueNameFrom (const QDBusConnection &bus, const QString &wellKnownOrUnique)
 
static QString uniqueNameFrom (const QDBusConnection &bus, const QString &wellKnownOrUnique, QString &error, QString &message)
 

Static Public Attributes

static const Feature FeatureCore
 
static const Feature FeatureStreams
 
static const Feature FeatureLocalHoldState
 
- Static Public Attributes inherited from Tp::Channel
static const Feature FeatureCore
 
static const Feature FeatureConferenceInitialInviteeContacts
 

Protected Member Functions

 StreamedMediaChannel (const ConnectionPtr &connection, const QString &objectPath, const QVariantMap &immutableProperties, const Feature &coreFeature=StreamedMediaChannel::FeatureCore)
 
- Protected Member Functions inherited from Tp::Channel
 Channel (const ConnectionPtr &connection, const QString &objectPath, const QVariantMap &immutableProperties, const Feature &coreFeature)
 
Client::ChannelInterfacebaseInterface () const
 
bool groupSelfHandleIsLocalPending () const
 
- Protected Member Functions inherited from Tp::DBusProxy
void setBusName (const QString &busName)
 
void invalidate (const QString &reason, const QString &message)
 
void invalidate (const QDBusError &error)
 
- Protected Member Functions inherited from Tp::Object
 Object ()
 
void notify (const char *propertyName)
 
- Protected Member Functions inherited from Tp::ReadyObject
ReadinessHelperreadinessHelper () const
 
- Protected Member Functions inherited from Tp::OptionalInterfaceFactory< Channel >
void setInterfaces (const QStringList &interfaces)
 

Additional Inherited Members

- Protected Slots inherited from Tp::Channel
PendingOperationgroupAddSelfHandle ()
 

Detailed Description

The StreamedMediaChannel class represents a Telepathy channel of type StreamedMedia.

For more details, please refer to Telepathy specification.

See Asynchronous Object Model, Shared Pointer Usage

Member Enumeration Documentation

Enumerator
StateChangeReasonUnknown 
StateChangeReasonUserRequested 

Constructor & Destructor Documentation

Tp::StreamedMediaChannel::~StreamedMediaChannel ( )
virtual

Class destructor.

Tp::StreamedMediaChannel::StreamedMediaChannel ( const ConnectionPtr &  connection,
const QString &  objectPath,
const QVariantMap &  immutableProperties,
const Feature coreFeature = StreamedMediaChannel::FeatureCore 
)
protected

Construct a new StreamedMediaChannel object.

Parameters
connectionConnection owning this channel, and specifying the service.
objectPathThe channel object path.
immutablePropertiesThe channel immutable properties.
coreFeatureThe core feature of the channel type, if any. The corresponding introspectable should depend on StreamedMediaChannel::FeatureCore.

Member Function Documentation

StreamedMediaChannelPtr Tp::StreamedMediaChannel::create ( const ConnectionPtr &  connection,
const QString &  objectPath,
const QVariantMap &  immutableProperties 
)
static

Create a new StreamedMediaChannel object.

Parameters
connectionConnection owning this channel, and specifying the service.
objectPathThe channel object path.
immutablePropertiesThe channel immutable properties.
Returns
A StreamedMediaChannelPtr object pointing to the newly created StreamedMediaChannel object.
bool Tp::StreamedMediaChannel::awaitingLocalAnswer ( ) const

Return whether this channel is awaiting local answer.

This method requires StreamedMediaChannel::FeatureCore to be ready.

Returns
true if awaiting local answer, false otherwise.
See also
awaitingRemoteAnswer(), acceptCall()
bool Tp::StreamedMediaChannel::awaitingRemoteAnswer ( ) const

Return whether this channel is awaiting remote answer.

This method requires StreamedMediaChannel::FeatureCore to be ready.

Returns
true if awaiting remote answer, false otherwise.
See also
awaitingLocalAnswer()
PendingOperation * Tp::StreamedMediaChannel::acceptCall ( )

Accept an incoming call.

This method requires StreamedMediaChannel::FeatureCore to be ready.

Returns
A PendingOperation which will emit PendingOperation::finished when the call has finished.
See also
awaitingLocalAnswer(), hangupCall()
PendingOperation * Tp::StreamedMediaChannel::hangupCall ( )

Request that the call is ended.

This method requires StreamedMediaChannel::FeatureCore to be ready.

Returns
A PendingOperation which will emit PendingOperation::finished when the call has finished.
StreamedMediaStreams Tp::StreamedMediaChannel::streams ( ) const

Return a list of media streams in this channel.

This methods requires StreamedMediaChannel::FeatureStreams to be ready.

Returns
A list of pointers to StreamedMediaStream objects.
See also
streamAdded(), streamRemoved(), streamsForType(), requestStreams()
StreamedMediaStreams Tp::StreamedMediaChannel::streamsForType ( MediaStreamType  type) const

Return a list of media streams in this channel for the given type type.

This methods requires StreamedMediaChannel::FeatureStreams to be ready.

Parameters
typeThe interested type.
Returns
A list of pointers to StreamedMediaStream objects.
See also
streamAdded(), streamRemoved(), streams(), requestStreams()
PendingStreamedMediaStreams * Tp::StreamedMediaChannel::requestStream ( const ContactPtr &  contact,
MediaStreamType  type 
)

Request that media streams be established to exchange the given type type of media with the given contact contact.

This methods requires StreamedMediaChannel::FeatureStreams to be ready.

Returns
A PendingStreamedMediaStreams which will emit PendingStreamedMediaStreams::finished when the call has finished.
See also
streamAdded(), streams(), streamsForType()
PendingStreamedMediaStreams * Tp::StreamedMediaChannel::requestStreams ( const ContactPtr &  contact,
QList< MediaStreamType types 
)

Request that media streams be established to exchange the given types types of media with the given contact contact.

This methods requires StreamedMediaChannel::FeatureStreams to be ready.

Returns
A PendingStreamedMediaStreams which will emit PendingStreamedMediaStreams::finished when the call has finished.
See also
streamAdded(), streams(), streamsForType()
PendingOperation * Tp::StreamedMediaChannel::removeStream ( const StreamedMediaStreamPtr &  stream)

Remove the specified media stream from this channel.

This methods requires StreamedMediaChannel::FeatureStreams to be ready.

Parameters
streamMedia stream to remove.
Returns
A PendingOperation which will emit PendingOperation::finished when the call has finished.
See also
streamRemoved(), streams(), streamsForType()
PendingOperation * Tp::StreamedMediaChannel::removeStreams ( const StreamedMediaStreams streams)

Remove the specified media streams from this channel.

This methods requires StreamedMediaChannel::FeatureStreams to be ready.

Parameters
streamsList of media streams to remove.
Returns
A PendingOperation which will emit PendingOperation::finished when the call has finished.
See also
streamRemoved(), streams(), streamsForType()
bool Tp::StreamedMediaChannel::handlerStreamingRequired ( ) const

Check whether media streaming by the handler is required for this channel.

For channels with the TP_QT_IFACE_CHANNEL_INTERFACE_MEDIA_SIGNALLING interface, the main handler of the channel is responsible for doing the actual streaming, for instance by calling createFarsightChannel(channel) from TelepathyQt-Farsight library and using the telepathy-farsight API on the resulting TfChannel.

This method requires StreamedMediaChannel::FeatureCore to be ready.

Returns
true if required, false otherwise.
LocalHoldState Tp::StreamedMediaChannel::localHoldState ( ) const

Return the local hold state for this channel.

Whether the local user has placed this channel on hold.

This method requires StreamedMediaChannel::FeatureHoldState to be ready.

Returns
The local hold state as LocalHoldState.
See also
requestHold(), localHoldStateChanged()
LocalHoldStateReason Tp::StreamedMediaChannel::localHoldStateReason ( ) const

Return the reason why localHoldState() changed to its current value.

This method requires StreamedMediaChannel::FeatureLocalHoldState to be ready.

Returns
The local hold state reason as LocalHoldStateReason.
See also
requestHold(), localHoldStateChanged()
PendingOperation * Tp::StreamedMediaChannel::requestHold ( bool  hold)

Request that the channel be put on hold (be instructed not to send any media streams to you) or be taken off hold.

If the CM can immediately tell that the requested state change could not possibly succeed, the resulting PendingOperation will fail with error code TP_QT_ERROR_NOT_AVAILABLE. If the requested state is the same as the current state, the resulting PendingOperation will finish successfully.

Otherwise, the channel's local hold state will change to LocalHoldStatePendingHold or LocalHoldStatePendingUnhold (as appropriate), then the resulting PendingOperation will finish successfully.

The eventual success or failure of the request is indicated by a subsequent localHoldStateChanged() signal, changing the local hold state to LocalHoldStateHeld or LocalHoldStateUnheld.

If the channel has multiple streams, and the connection manager succeeds in changing the hold state of one stream but fails to change the hold state of another, it will attempt to revert all streams to their previous hold states.

If the channel does not support the TP_QT_IFACE_CHANNEL_INTERFACE_HOLD interface, the PendingOperation will fail with error code TP_QT_ERROR_NOT_IMPLEMENTED.

Parameters
holdA boolean indicating whether or not the channel should be on hold
Returns
A PendingOperation which will emit PendingOperation::finished when the request finishes.
See also
localHoldState(), localHoldStateReason(), localHoldStateChanged()
void Tp::StreamedMediaChannel::streamAdded ( const Tp::StreamedMediaStreamPtr &  stream)
signal

Emitted when a media stream is added to this channel.

Parameters
streamThe media stream that was added.
See also
streams(), streamsForType(), streamRemoved()
void Tp::StreamedMediaChannel::streamRemoved ( const Tp::StreamedMediaStreamPtr &  stream)
signal

Emitted when a media stream is removed from this channel.

Parameters
streamThe media stream that was removed.
See also
streams(), streamsForType(), streamAdded()
void Tp::StreamedMediaChannel::streamDirectionChanged ( const Tp::StreamedMediaStreamPtr &  stream,
Tp::MediaStreamDirection  direction,
Tp::MediaStreamPendingSend  pendingSend 
)
signal

Emitted when a media stream direction changes.

Parameters
streamThe media stream which the direction changed.
directionThe new direction of the stream that changed.
pendingSendThe new pending send flags of the stream that changed.
See also
StreamedMediaStream::direction()
void Tp::StreamedMediaChannel::streamStateChanged ( const Tp::StreamedMediaStreamPtr &  stream,
Tp::MediaStreamState  state 
)
signal

Emitted when a media stream state changes.

Parameters
streamThe media stream which the state changed.
stateThe new state of the stream that changed.
See also
StreamedMediaStream::state()
void Tp::StreamedMediaChannel::streamError ( const Tp::StreamedMediaStreamPtr &  stream,
Tp::MediaStreamError  errorCode,
const QString &  errorMessage 
)
signal

Emitted when an error occurs on a media stream.

Parameters
streamThe media stream which the error occurred.
errorCodeThe error code.
errorMessageThe error message.
void Tp::StreamedMediaChannel::localHoldStateChanged ( Tp::LocalHoldState  state,
Tp::LocalHoldStateReason  reason 
)
signal

Emitted when the local hold state of this channel changes.

Parameters
stateThe new local hold state of this channel.
reasonThe reason why the change occurred.
See also
localHoldState(), localHoldStateReason()

Member Data Documentation

const Feature Tp::StreamedMediaChannel::FeatureCore
static

Feature representing the core that needs to become ready to make the StreamedMediaChannel object usable.

This is currently the same as Channel::FeatureCore, but may change to include more.

When calling isReady(), becomeReady(), this feature is implicitly added to the requested features.

See also
awaitingLocalAnswer(), awaitingRemoteAnswer(), acceptCall(), hangupCall(), handlerStreamingRequired()
const Feature Tp::StreamedMediaChannel::FeatureStreams
static

Feature used in order to access media stream specific methods.

See media stream specific methods' documentation for more details.

See also
streams(), streamsForType(), requestStream(), requestStreams(), streamAdded() removeStream(), removeStreams(), streamRemoved(), streamDirectionChanged(), streamStateChanged(), streamError()
const Feature Tp::StreamedMediaChannel::FeatureLocalHoldState
static

Feature used in order to access local hold state info.

See local hold state specific methods' documentation for more details.

See also
localHoldState(), localHoldStateReason(), requestHold(), localHoldStateChanged()


Copyright © 2008-2011 Collabora Ltd. and Nokia Corporation
Telepathy-Qt 0.9.7