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# ChannelTypeFileTransferInterface Class Reference
[Channel proxies]

`#include <TelepathyQt4/Channel>`

Inherits Tp::AbstractInterface.

List of all members.

## Public Slots

- QDBusPendingReply< QDBusVariant > AcceptFile (uint addressType, uint accessControl, const QDBusVariant &accessControlParam, qulonglong offset)
- QDBusPendingReply< QDBusVariant > ProvideFile (uint addressType, uint accessControl, const QDBusVariant &accessControlParam)

## Signals

- void FileTransferStateChanged (uint state, uint reason)
- void TransferredBytesChanged (qulonglong count)
- void InitialOffsetDefined (qulonglong initialOffset)

## Public Member Functions

- ChannelTypeFileTransferInterface (const QString &busName, const QString &objectPath, QObject *parent=0)
- ChannelTypeFileTransferInterface (const QDBusConnection &connection, const QString &busName, const QString &objectPath, QObject *parent=0)
- ChannelTypeFileTransferInterface (Tp::DBusProxy *proxy)
- ChannelTypeFileTransferInterface (const Tp::Client::ChannelInterface &mainInterface)
- ChannelTypeFileTransferInterface (const Tp::Client::ChannelInterface &mainInterface, QObject *parent)
- uint State () const TELEPATHY_GNUC_DEPRECATED
- QString ContentType () const TELEPATHY_GNUC_DEPRECATED
- QString Filename () const TELEPATHY_GNUC_DEPRECATED
- qulonglong Size () const TELEPATHY_GNUC_DEPRECATED
- uint ContentHashType () const TELEPATHY_GNUC_DEPRECATED
- QString ContentHash () const TELEPATHY_GNUC_DEPRECATED
- QString Description () const TELEPATHY_GNUC_DEPRECATED
- qlonglong Date () const TELEPATHY_GNUC_DEPRECATED
- Tp::SupportedSocketMap AvailableSocketTypes () const TELEPATHY_GNUC_DEPRECATED
- qulonglong TransferredBytes () const TELEPATHY_GNUC_DEPRECATED
- qulonglong InitialOffset () const TELEPATHY_GNUC_DEPRECATED

## Static Public Member Functions

- static const char * staticInterfaceName ()

## Protected Member Functions

- virtual void invalidate (Tp::DBusProxy *, const QString &, const QString &)

## Properties

- uint State
- QString ContentType
- QString Filename
- qulonglong Size
- uint ContentHashType
- QString ContentHash
- QString Description
- qlonglong Date
- Tp::SupportedSocketMap AvailableSocketTypes
- qulonglong TransferredBytes
- qulonglong InitialOffset

## Detailed Description

Proxy class providing a 1:1 mapping of the D-Bus interface "org.freedesktop.Telepathy.Channel.Type.FileTransfer."

## Constructor & Destructor Documentation

ChannelTypeFileTransferInterface | ( | const QString & | busName,
|  | const QString & | objectPath,
|  | QObject * | parent = `0` |
| ) |  |  |

Creates a ChannelTypeFileTransferInterface associated with the given object on the session bus.

Parameters:

  | busName | Name of the service the object is on.
  | objectPath | Path to the object on the service.
  | parent | Passed to the parent class constructor.

ChannelTypeFileTransferInterface | ( | const QDBusConnection & | connection,
|  | const QString & | busName,
|  | const QString & | objectPath,
|  | QObject * | parent = `0` |
| ) |  |  |

Creates a ChannelTypeFileTransferInterface associated with the given object on the given bus.

Parameters:

  | connection | The bus via which the object can be reached.
  | busName | Name of the service the object is on.
  | objectPath | Path to the object on the service.
  | parent | Passed to the parent class constructor.

ChannelTypeFileTransferInterface | ( | Tp::DBusProxy * | proxy | ) |

Creates a ChannelTypeFileTransferInterface associated with the same object as the given proxy.

Parameters:

  | proxy | The proxy to use. It will also be the QObject::parent() for this object.

ChannelTypeFileTransferInterface | ( | const Tp::Client::ChannelInterface & | mainInterface | ) | `[explicit]`

Creates a ChannelTypeFileTransferInterface associated with the same object as the given proxy. Additionally, the created proxy will have the same parent as the given proxy.

Parameters:

  | mainInterface | The proxy to use.

ChannelTypeFileTransferInterface | ( | const Tp::Client::ChannelInterface & | mainInterface,
|  | QObject * | parent |
| ) |  |  |

Creates a ChannelTypeFileTransferInterface associated with the same object as the given proxy. However, a different parent object can be specified.

Parameters:

  | mainInterface | The proxy to use.
  | parent | Passed to the parent class constructor.

## Member Function Documentation

static const char* staticInterfaceName | ( |  | ) | `[inline, static]`

Returns the name of the interface "org.freedesktop.Telepathy.Channel.Type.FileTransfer", which this class represents.

Returns:
  The D-Bus interface name.

uint State | ( |  | ) | const`[inline]`

Getter for the remote object property "State".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

QString ContentType | ( |  | ) | const`[inline]`

Getter for the remote object property "ContentType".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

QString Filename | ( |  | ) | const`[inline]`

Getter for the remote object property "Filename".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

qulonglong Size | ( |  | ) | const`[inline]`

Getter for the remote object property "Size".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

uint ContentHashType | ( |  | ) | const`[inline]`

Getter for the remote object property "ContentHashType".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

QString ContentHash | ( |  | ) | const`[inline]`

Getter for the remote object property "ContentHash".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

QString Description | ( |  | ) | const`[inline]`

Getter for the remote object property "Description".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

qlonglong Date | ( |  | ) | const`[inline]`

Getter for the remote object property "Date".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

Tp::SupportedSocketMap AvailableSocketTypes | ( |  | ) | const`[inline]`

Getter for the remote object property "AvailableSocketTypes".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

qulonglong TransferredBytes | ( |  | ) | const`[inline]`

Getter for the remote object property "TransferredBytes".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

qulonglong InitialOffset | ( |  | ) | const`[inline]`

Getter for the remote object property "InitialOffset".

Don't use this: it blocks the main loop.

Returns:
  The value of the property, or a default-constructed value if the property is not readable.

QDBusPendingReply<QDBusVariant> AcceptFile | ( | uint | addressType,
|  | uint | accessControl,
|  | const QDBusVariant & | accessControlParam,
|  | qulonglong | offset |
| ) |  |  | `[inline, slot]`

Begins a call to the D-Bus method "AcceptFile" on the remote object.

Accept a file transfer that's in the Pending state. The file transfer's state becomes Accepted after this method is called. At this point the client can connect to the socket. CM MUST emit InitialOffsetDefined and change the state to Open before writing to the socket. Then InitialOffset should be respected in case its value differs from the offset that was specified as an argument to AcceptFile.

Parameters:

  | addressType | The type of address the connection manager should listen on.
  | accessControl | The type of access control the connection manager should apply to the socket.
  | accessControlParam | A parameter for the access control type, to be interpreted as specified in the documentation for the Socket_Access_Control enum.

  offset

  The desired offset in bytes where the file transfer should start. The offset is taken from the beginning of the file. Specifying an offset of zero will start the transfer from the beginning of the file. The offset that is actually given in the InitialOffset property can differ from this argument where the requested offset is not supported. (For example, some protocols do not support offsets at all so the InitialOffset property will always be 0.)

Returns:

The address on which the connection manager will listen for connections for this file transfer.

QDBusPendingReply<QDBusVariant> ProvideFile | ( | uint | addressType,
|  | uint | accessControl,
|  | const QDBusVariant & | accessControlParam |
| ) |  |  | `[inline, slot]`

Begins a call to the D-Bus method "ProvideFile" on the remote object.

Provide the file for an outgoing file transfer which has been offered. Opens a socket that the client can use to provide a file to the connection manager. The channel MUST have been requested, and will change state to Open when this method is called if its state was Accepted.

Parameters:

  | addressType | The type of address the connection manager should listen on.
  | accessControl | The type of access control the connection manager should apply to the socket.
  | accessControlParam | A parameter for the access control type, to be interpreted as specified in the documentation for the Socket_Access_Control enum.

Returns:

The address on which the connection manager will listen for connections for this file transfer.

void FileTransferStateChanged | ( | uint | state,
|  | uint | reason |
| ) |  |  | `[signal]`

Represents the signal "FileTransferStateChanged" on the remote object.

Emitted when the state of a file transfer changes.

Parameters:

  | state | The new state of the file transfer; see the File_Transfer_State enumeration.
  | reason | The reason for the state change; see the File_Transfer_State_Change_Reason enumeration. The value will always be File_Transfer_State_Change_Reason_None, except when changing state to cancelled.

void TransferredBytesChanged | ( | qulonglong | count | ) | `[signal]`

Represents the signal "TransferredBytesChanged" on the remote object.

Emitted when the number of transferred bytes changes. This will not be signalled with every single byte change. Instead, the most frequent this signal will be emitted is once a second. This should be sufficient, and the TransferredBytes property SHOULD NOT be polled.

Parameters:

  | count | The number of already transferred bytes.

void InitialOffsetDefined | ( | qulonglong | initialOffset | ) | `[signal]`

Represents the signal "InitialOffsetDefined" on the remote object.

Emitted when the value of the InitialOffset property has been negotiated. This signal MUST be emitted before the channel becomes Open and clients have to use this offset when transferring the file.

Parameters:

  | initialOffset | The value of the InitialOffset property.

virtual void invalidate | ( | Tp::DBusProxy * | ,
|  | const QString & | ,
|  | const QString & |  |
| ) |  |  | `[protected, virtual]`

## Property Documentation

uint State`[read]`

Represents property "State" on the remote object.

The state of the file transfer as described by the File_Transfer_State enum.

QString ContentType`[read]`

Represents property "ContentType" on the remote object.

The file's MIME type. This cannot change once the channel has been created.

This property is mandatory when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method. Protocols which do not have a content-type property with file transfers should set this value to application/octet-stream.

QString Filename`[read]`

Represents property "Filename" on the remote object.

The name of the file on the sender's side. This is therefore given as a suggested filename for the receiver. This cannot change once the channel has been created.

This property should be the basename of the file being sent. For example, if the sender sends the file /home/user/monkey.pdf then this property should be set to monkey.pdf.

This property is mandatory when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method. This property cannot be empty and MUST be set to a sensible value.

qulonglong Size`[read]`

Represents property "Size" on the remote object.

The size of the file. If this property is set, then the file transfer is guaranteed to be this size. This cannot change once the channel has been created.

When you are creating a channel with this property, its value MUST be accurate and in bytes. However, when receiving a file, this property still MUST be in bytes but might not be entirely accurate to the byte.

This property is mandatory when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method. If this information isn't provided in the protocol, connection managers MUST set it to UINT64_MAX.

uint ContentHashType`[read]`

Represents property "ContentHashType" on the remote object.

The type of the <tp:member-ref>ContentHash</tp:member-ref> property.

This property is optional when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method. However, if you wish to include the <tp:member-ref>ContentHash</tp:member-ref> property you MUST also include this property. If you omit this property from a <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method call then its value will be assumed to be File_Hash_Type_None.

For each supported hash type, implementations SHOULD include an entry in <tp:dbus-ref namespace="org.freedesktop.Telepathy.Connection.Interface.Requests">RequestableChannelClasses</tp:dbus-ref> with this property fixed to that hash type. If the protocol supports offering a file without a content hash, implementations SHOULD list this property in Allowed in a requestable channel class, mapping hash types they don't understand to None.

QString ContentHash`[read]`

Represents property "ContentHash" on the remote object.

Hash of the contents of the file transfer, of type described in the value of the <tp:member-ref>ContentHashType</tp:member-ref> property.

This property is optional when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method. Its value MUST correspond to the appropriate type of the <tp:member-ref>ContentHashType</tp:member-ref> property. If the ContentHashType property is not set, or set to File_Hash_Type_None, then this property will not even be looked at.

QString Description`[read]`

Represents property "Description" on the remote object.

Description of the file transfer. This cannot change once the channel has been created.

This property is optional when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method. If this property was not provided by the remote party, connection managers MUST set it to the empty string.

qlonglong Date`[read]`

Represents property "Date" on the remote object.

The last modification time of the file being transferred. This cannot change once the channel has been created

This property is optional when requesting the channel with the <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> method.

Tp::SupportedSocketMap AvailableSocketTypes`[read]`

Represents property "AvailableSocketTypes" on the remote object.

A mapping from address types (members of Socket_Address_Type) to arrays of access-control type (members of Socket_Access_Control) that the connection manager supports for sockets with that address type. For simplicity, if a CM supports offering a particular type of file transfer, it is assumed to support accepting it. Connection Managers MUST support at least Socket_Address_Type_IPv4.

A typical value for a host without IPv6 support:

       {
         Socket_Address_Type_IPv4:
           [Socket_Access_Control_Localhost, Socket_Access_Control_Port,
            Socket_Access_Control_Netmask],
         Socket_Address_Type_Unix:
           [Socket_Access_Control_Localhost, Socket_Access_Control_Credentials]
       }

qulonglong TransferredBytes`[read]`

Represents property "TransferredBytes" on the remote object.

The number of bytes that have been transferred at the time of requesting the property. This will be updated as the file transfer continues.

qulonglong InitialOffset`[read]`

Represents property "InitialOffset" on the remote object.

The offset in bytes from where the file should be sent. This MUST be respected by both the receiver and the sender after the state becomes Open, but before any data is sent or received. Until the <tp:member-ref>InitialOffsetDefined</tp:member-ref> signal is emitted, this property is undefined.

Before setting the <tp:member-ref>State</tp:member-ref> property to Open, the connection manager MUST set the InitialOffset property, possibly to 0.

This property MUST NOT change after the state of the transfer has changed to Open.