# This file has been autogenerated by the pywayland scanner
# Copyright © 2008-2011 Kristian Høgsberg
# Copyright © 2010-2011 Intel Corporation
# Copyright © 2012-2013 Collabora, Ltd.
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice (including the
# next paragraph) shall be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from __future__ import annotations
import enum
from pywayland.protocol_core import (
Argument,
ArgumentType,
Global,
Interface,
Proxy,
Resource,
)
class WlDataOffer(Interface):
"""Offer to transfer data
A :class:`WlDataOffer` represents a piece of data offered for transfer by
another client (the source client). It is used by the copy-and-paste and
drag-and-drop mechanisms. The offer describes the different mime types
that the data can be converted to and provides the mechanism for
transferring the data directly from the source client.
"""
name = "wl_data_offer"
version = 3
class error(enum.IntEnum):
invalid_finish = 0
invalid_action_mask = 1
invalid_action = 2
invalid_offer = 3
class WlDataOfferProxy(Proxy[WlDataOffer]):
interface = WlDataOffer
@WlDataOffer.request(
Argument(ArgumentType.Uint),
Argument(ArgumentType.String, nullable=True),
)
def accept(self, serial: int, mime_type: str | None) -> None:
"""Accept one of the offered mime types
Indicate that the client can accept the given mime type, or NULL for
not accepted.
For objects of version 2 or older, this request is used by the client
to give feedback whether the client can receive the given mime type, or
NULL if none is accepted; the feedback does not determine whether the
drag-and-drop operation succeeds or not.
For objects of version 3 or newer, this request determines the final
result of the drag-and-drop operation. If the end result is that no
mime types were accepted, the drag-and-drop operation will be cancelled
and the corresponding drag source will receive
:func:`WlDataSource.cancelled()
<pywayland.protocol.wayland.WlDataSource.cancelled>`. Clients may still
use this event in conjunction with :func:`WlDataSource.action()
<pywayland.protocol.wayland.WlDataSource.action>` for feedback.
:param serial:
serial number of the accept request
:type serial:
`ArgumentType.Uint`
:param mime_type:
mime type accepted by the client
:type mime_type:
`ArgumentType.String` or `None`
"""
self._marshal(0, serial, mime_type)
@WlDataOffer.request(
Argument(ArgumentType.String),
Argument(ArgumentType.FileDescriptor),
)
def receive(self, mime_type: str, fd: int) -> None:
"""Request that the data is transferred
To transfer the offered data, the client issues this request and
indicates the mime type it wants to receive. The transfer happens
through the passed file descriptor (typically created with the pipe
system call). The source client writes the data in the mime type
representation requested and then closes the file descriptor.
The receiving client reads from the read end of the pipe until EOF and
then closes its end, at which point the transfer is complete.
This request may happen multiple times for different mime types, both
before and after :func:`WlDataDevice.drop()
<pywayland.protocol.wayland.WlDataDevice.drop>`. Drag-and-drop
destination clients may preemptively fetch data or examine it more
closely to determine acceptance.
:param mime_type:
mime type desired by receiver
:type mime_type:
`ArgumentType.String`
:param fd:
file descriptor for data transfer
:type fd:
`ArgumentType.FileDescriptor`
"""
self._marshal(1, mime_type, fd)
@WlDataOffer.request()
def destroy(self) -> None:
"""Destroy data offer
Destroy the data offer.
"""
self._marshal(2)
self._destroy()
@WlDataOffer.request(version=3)
def finish(self) -> None:
"""The offer will no longer be used
Notifies the compositor that the drag destination successfully finished
the drag-and-drop operation.
Upon receiving this request, the compositor will emit
:func:`WlDataSource.dnd_finished()
<pywayland.protocol.wayland.WlDataSource.dnd_finished>` on the drag
source client.
It is a client error to perform other requests than
:func:`WlDataOffer.destroy()` after this one. It is also an error to
perform this request after a NULL mime type has been set in
:func:`WlDataOffer.accept()` or no action was received through
:func:`WlDataOffer.action()`.
If :func:`WlDataOffer.finish()` request is received for a non drag and
drop operation, the invalid_finish protocol error is raised.
"""
self._marshal(3)
@WlDataOffer.request(
Argument(ArgumentType.Uint),
Argument(ArgumentType.Uint),
version=3,
)
def set_actions(self, dnd_actions: int, preferred_action: int) -> None:
"""Set the available/preferred drag-and-drop actions
Sets the actions that the destination side client supports for this
operation. This request may trigger the emission of
:func:`WlDataSource.action()
<pywayland.protocol.wayland.WlDataSource.action>` and
:func:`WlDataOffer.action()` events if the compositor needs to change
the selected action.
This request can be called multiple times throughout the drag-and-drop
operation, typically in response to :func:`WlDataDevice.enter()
<pywayland.protocol.wayland.WlDataDevice.enter>` or
:func:`WlDataDevice.motion()
<pywayland.protocol.wayland.WlDataDevice.motion>` events.
This request determines the final result of the drag-and-drop
operation. If the end result is that no action is accepted, the drag
source will receive :func:`WlDataSource.cancelled()
<pywayland.protocol.wayland.WlDataSource.cancelled>`.
The dnd_actions argument must contain only values expressed in the
:func:`WlDataDeviceManager.dnd_actions()
<pywayland.protocol.wayland.WlDataDeviceManager.dnd_actions>` enum, and
the preferred_action argument must only contain one of those values
set, otherwise it will result in a protocol error.
While managing an "ask" action, the destination drag-and-drop client
may perform further :func:`WlDataOffer.receive()` requests, and is
expected to perform one last :func:`WlDataOffer.set_actions()` request
with a preferred action other than "ask" (and optionally
:func:`WlDataOffer.accept()`) before requesting
:func:`WlDataOffer.finish()`, in order to convey the action selected by
the user. If the preferred action is not in the
:func:`WlDataOffer.source_actions()` mask, an error will be raised.
If the "ask" action is dismissed (e.g. user cancellation), the client
is expected to perform :func:`WlDataOffer.destroy()` right away.
This request can only be made on drag-and-drop offers, a protocol error
will be raised otherwise.
:param dnd_actions:
actions supported by the destination client
:type dnd_actions:
`ArgumentType.Uint`
:param preferred_action:
action preferred by the destination client
:type preferred_action:
`ArgumentType.Uint`
"""
self._marshal(4, dnd_actions, preferred_action)
class WlDataOfferResource(Resource):
interface = WlDataOffer
@WlDataOffer.event(
Argument(ArgumentType.String),
)
def offer(self, mime_type: str) -> None:
"""Advertise offered mime type
Sent immediately after creating the :class:`WlDataOffer` object. One
event per offered mime type.
:param mime_type:
offered mime type
:type mime_type:
`ArgumentType.String`
"""
self._post_event(0, mime_type)
@WlDataOffer.event(
Argument(ArgumentType.Uint),
version=3,
)
def source_actions(self, source_actions: int) -> None:
"""Notify the source-side available actions
This event indicates the actions offered by the data source. It will be
sent immediately after creating the :class:`WlDataOffer` object, or
anytime the source side changes its offered actions through
:func:`WlDataSource.set_actions()
<pywayland.protocol.wayland.WlDataSource.set_actions>`.
:param source_actions:
actions offered by the data source
:type source_actions:
`ArgumentType.Uint`
"""
self._post_event(1, source_actions)
@WlDataOffer.event(
Argument(ArgumentType.Uint),
version=3,
)
def action(self, dnd_action: int) -> None:
"""Notify the selected action
This event indicates the action selected by the compositor after
matching the source/destination side actions. Only one action (or none)
will be offered here.
This event can be emitted multiple times during the drag-and-drop
operation in response to destination side action changes through
:func:`WlDataOffer.set_actions()`.
This event will no longer be emitted after :func:`WlDataDevice.drop()
<pywayland.protocol.wayland.WlDataDevice.drop>` happened on the drag-
and-drop destination, the client must honor the last action received,
or the last preferred one set through :func:`WlDataOffer.set_actions()`
when handling an "ask" action.
Compositors may also change the selected action on the fly, mainly in
response to keyboard modifier changes during the drag-and-drop
operation.
The most recent action received is always the valid one. Prior to
receiving :func:`WlDataDevice.drop()
<pywayland.protocol.wayland.WlDataDevice.drop>`, the chosen action may
change (e.g. due to keyboard modifiers being pressed). At the time of
receiving :func:`WlDataDevice.drop()
<pywayland.protocol.wayland.WlDataDevice.drop>` the drag-and-drop
destination must honor the last action received.
Action changes may still happen after :func:`WlDataDevice.drop()
<pywayland.protocol.wayland.WlDataDevice.drop>`, especially on "ask"
actions, where the drag-and-drop destination may choose another action
afterwards. Action changes happening at this stage are always the
result of inter-client negotiation, the compositor shall no longer be
able to induce a different action.
Upon "ask" actions, it is expected that the drag-and-drop destination
may potentially choose a different action and/or mime type, based on
:func:`WlDataOffer.source_actions()` and finally chosen by the user
(e.g. popping up a menu with the available options). The final
:func:`WlDataOffer.set_actions()` and :func:`WlDataOffer.accept()`
requests must happen before the call to :func:`WlDataOffer.finish()`.
:param dnd_action:
action selected by the compositor
:type dnd_action:
`ArgumentType.Uint`
"""
self._post_event(2, dnd_action)
class WlDataOfferGlobal(Global):
interface = WlDataOffer
WlDataOffer._gen_c()
WlDataOffer.proxy_class = WlDataOfferProxy
WlDataOffer.resource_class = WlDataOfferResource
WlDataOffer.global_class = WlDataOfferGlobal