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workspace-create: add workspace creation protocol
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‎protocols/shell-workspace-creation-v1.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="shell_workspace_creation_v1">
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<copyright>
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Copyright © 2025 outfoxxed
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that copyright notice and this permission
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notice appear in supporting documentation, and that the name of
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the copyright holders not be used in advertising or publicity
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pertaining to distribution of the software without specific,
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written prior permission. The copyright holders make no
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representations about the suitability of this software for any
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purpose. It is provided "as is" without express or implied
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warranty.
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THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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</copyright>
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<description summary="protocol allowing the creation of workspaces">
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Many compositors make use of workspaces that are created dynamically
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based on content or focus. This protocol aims to allow creation of
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workspaces in such environments by combining the intent to create
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a workspace with actions suitable to create one.
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This protocol additionally aims to make any logical workspace location
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or workspace type available to the client, through globals defined
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in this protocol or compositor-specific companion protocols.
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A client may attempt to discover potential creation methods by
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creating new workspace targets, checking their capabilities and
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destroying them without use.
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The key words "must", "must not", "required", "shall", "shall not",
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"should", "should not", "recommended", "may", and "optional" in this
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document are to be interpreted as described in IETF RFC 2119.
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Warning! The protocol described in this file is intended as a stopgap
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and is expected to be superseded by a solution in wayland-protocols.
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Clients should not assume this protocol will continue to exist in the
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future.
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</description>
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<interface name="shell_workspace_creation_target_descriptor_v1" version="1">
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<description summary="opaque workspace creation target descriptor">
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The workspace creation target descriptor is an opaque object
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that describes where and how a workspace will be created.
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Because shell_workspace_creation_target_descriptor_v1 objects
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are created from multiple independent factory interfaces,
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the shell_workspace_creation_target_descriptor_v1 interface
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is frozen at version 1.
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</description>
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<request name="destroy" type="destructor">
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<description summary="destroy the descriptor">
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Destroys the object.
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</description>
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</request>
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</interface>
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<interface name="shell_workspace_target_creation_manager_v1" version="1">
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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Destroy the manager. Destroying the manager does not destroy objects
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created by the manager.
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</description>
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</request>
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<request name="get_target">
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<description>
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This request creates a new workspace target from a given workspace
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target descriptor.
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The descriptor may be destroyed following this request.
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Because the target descriptor cannot be versioned, this request
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is used to create a versionable target from the descriptor.
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</description>
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<arg name="target" type="new_id" interface="shell_workspace_creation_target_v1"/>
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<arg name="descriptor" type="new_id" interface="shell_workspace_creation_target_descriptor_v1"/>
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</request>
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</interface>
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<interface name="shell_workspace_arbitrary_creation_manager_v1" version="1">
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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Destroy the manager. Destroying the manager does not destroy objects
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created by the manager.
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</description>
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</request>
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<request name="get_arbitrary_target">
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<description summary="create a workspace target relative to another workspace">
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This requests creates a workspace target that targets an arbitrary
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compositor chosen name and location for the workspace.
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</description>
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<arg name="descriptor" type="new_id" interface="shell_workspace_creation_target_descriptor_v1"/>
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</request>
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</interface>
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<interface name="shell_workspace_coordinate_creation_manager_v1" version="1">
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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Destroy the manager. Destroying the manager does not destroy objects
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created by the manager.
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</description>
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</request>
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<request name="get_coordinate_target">
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<description summary="create a workspace target at the given coordinates">
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This request creates a workspace target at the given coordinates in
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the compositor's workspace coordinate space. This coordinate space
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should match the one used in 'ext_workspace_handle_v1.coordinates'.
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A given set of coordinates may be unrepresentable or otherwise disallowed
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by the compositor, in which case the workspace target will be invalid.
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If a workspace already exists at the given coordinates, the resuling
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target should be valid and refer to the existing workspace.
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</description>
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<arg name="descriptor" type="new_id" interface="shell_workspace_creation_target_descriptor_v1"/>
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<arg name="coordinates" type="array"/>
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</request>
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</interface>
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<interface name="shell_workspace_relative_creation_manager_v1" version="1">
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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Destroy the manager. Destroying the manager does not destroy objects
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created by the manager.
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</description>
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</request>
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<request name="get_relative_target">
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<description summary="create a workspace target relative to another workspace">
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This request creates a workspace target at the given coordinate offset
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from another workspace. The workspace coordinate space should match the
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one used in 'ext_workspace_handle_v1.coordinates'.
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A given coordinate offset may be unrepresentable or otherwise disallowed
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by the compositor, in which case the workspace target will be invalid.
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If a workspace already exists at the given offset, the resuling
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target should be valid and refer to the existing workspace.
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</description>
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<arg name="descriptor" type="new_id" interface="shell_workspace_creation_target_descriptor_v1"/>
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<arg name="workspace" type="object" interface="ext_workspace_handle_v1"/>
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<arg name="offset" type="array" summary="coordinate offset from the given workspace"/>
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</request>
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</interface>
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<interface name="shell_workspace_creation_target_v1" version="1">
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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Destroy the manager. Destroying the manager does not destroy objects
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created by the manager.
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</description>
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</request>
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<description summary="a target for actions that may create or activate a target workspace">
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A workspace creation target is a target for actions that may create a new workspace
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if performed. It may refer to either an existing workspace, or act as a marker
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of where and how a new workspace should be created.
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</description>
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<request name="destroy" type="destructor">
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<description summary="destroy the target">
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Destroy the workspace target. Destroying the target does not
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cancel committed requests.
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</description>
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</request>
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<enum name="capabilities">
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<entry name="create"
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summary="the targeted workspace can be created with only a request"
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value="1"/>
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<entry name="external"
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summary="the targeted workspace can be created through an extension protocol"
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value="2"/>
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<entry name="by_name"
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summary="the targeted workspace can be created by assigning a name"
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value="4"/>
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<entry name="nameable"
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summary="the targeted workspace can be named during creation"
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value="8"/>
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<entry name="activate"
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summary="the targeted workspace can be created by activating it"
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value="16"/>
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<entry name="add_toplevel"
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summary="the workspace toplevels can be created by adding a toplevel to it"
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value="32"/>
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</enum>
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<event name="capabilities">
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<description summary="update the capabilities of the workspace target">
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This event updates the capabilities of the workspace target.
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It must be sent upon creation of the target, and may be
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sent again at any point thereafter.
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A workspace target without any capabilities is considered to be
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invalid. An invalid target may be provided by the compositor
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if an unrepresentable, disallowed, or otherwise invalid workspace
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target is requested by the client.
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Clients are not required to check the capabilities of the target
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before attempting to use them, but such uses must result in failure.
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</description>
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<arg name="capabilities" type="uint" enum="capabilities"/>
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</event>
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<event name="success">
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<description summary="an action was successful">
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This event reports that a requested action was successful.
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Reported 'success' and 'failed' events correspond to actions
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in the order they were requested.
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</description>
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</event>
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<event name="failed">
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<description summary="an action was successful">
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This event reports that a requested action was not successful.
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This may be due to a missing capability or any other compositor
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determined reason.
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Reported 'success' and 'failed' events correspond to actions
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in the order they were requested.
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</description>
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</event>
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<request name="commit">
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<description summary="submit a sequence of actions">
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This request submits a sequence of creation actions to be
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performed atomically.
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Additional creation actions may be specified using
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a compositor-specific extension protocol.
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Following this request, the client will receive a series of 'success'
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or 'failed' events corresponding to the requested actions.
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The client may destroy the target object following this request if it
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does not care about the results of the actions or wishes to determine
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them in another way.
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</description>
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</request>
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<request name="create">
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<description summary="create the workspace">
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Asks the compositor to create the workspace target.
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This request is redundant if any other action is requested.
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This request must not take effect until committed.
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A 'success' or 'failed' event must be sent in response to this
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following a commit. The request should be considered successful
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if the workspace exists following the request, regardless
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of if its creation was a result of this request.
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</description>
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</request>
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<request name="set_name">
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<description summary="set the name of the targeted workspace">
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Asks the compositor to give a name to the targeted workspace.
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If the 'by_name' capability is present, assigning a name to the
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workspace is enough to ensure its creation. The workspace may
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still accept a name if the 'nameable' capability is present.
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This request must not take effect until committed.
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A 'success' or 'failed' event must be sent in response to this
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following a commit. The request should be considered successful
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if the workspace is active following the request, regardless
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of if its activation was a result of this request.
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</description>
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</request>
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<request name="activate">
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<description summary="activate the target workspace">
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Asks the compositor to active the workspace target.
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This request must not take effect until committed.
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A 'success' or 'failed' event must be sent in response to this
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following a commit. The request should be considered successful
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if the workspace is active following the request, regardless
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of if its activation was a result of this request.
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</description>
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</request>
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<request name="add_toplevel">
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<description summary="add a toplevel to the target workspace">
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Asks the compositor to move the given toplevel to the workspace
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target. This request should not activate the target workspace
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without an additional 'activate' request.
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This request must not take effect until committed.
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A 'success' or 'failed' event must be sent in response to this
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following a commit. The request should be considered successful
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if the toplevel is present on the workspace following the request,
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regardless of if its presence was a result of this request.
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</description>
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</request>
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</interface>
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</protocol>

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