xx_session_management_v1

# xx_session_manager_v1

The xx_session_manager interface defines base requests for creating and managing a session for an application. Sessions persist across application and compositor restarts unless explicitly destroyed. A session is created for the purpose of maintaining an application's xdg_toplevel surfaces across compositor or application restarts. The compositor should remember as many states as possible for surfaces in a given session, but there is no requirement for which states must be remembered.

Requests
- #
  destroy
  
  Destroy this object
  
  void xx_session_manager_v1_destroy(
  struct xx_session_manager_v1* xx_session_manager_v1
  )
  
  This has no effect other than to destroy the xx_session_manager object.
- #
  get_session
  
  create or restore a session
  
  struct xx_session_v1* xx_session_manager_v1_get_session(
  struct xx_session_manager_v1* xx_session_manager_v1,
  
  uint32_t reason, /* reason for session */
  
  const char* session /* the session to restore */
  )
  
  Create a session object corresponding to either an existing session identified by the given session identifier string or a new session. While the session object exists, the session is considered to be "in use". If a identifier string represents a session that is currently actively in use by the the same client, an 'in_use' error is raised. If some other client is currently using the same session, the new session will replace managing the associated state. NULL is passed to initiate a new session. If an id is passed which does not represent a valid session, the compositor treats it as if NULL had been passed. A client is allowed to have any number of in use sessions at the same time.
Enums
- #
  error
  
  XX_SESSION_MANAGER_V1_ERROR_IN_USE /* a requested session is already in use */
- #
  reason
  
  reason for getting a session
  
  XX_SESSION_MANAGER_V1_REASON_LAUNCH
  
  XX_SESSION_MANAGER_V1_REASON_RECOVER
  
  XX_SESSION_MANAGER_V1_REASON_SESSION_RESTORE
  
  The reason may determine in what way a session restores the window management state of associated toplevels. For example newly launched applications might be launched on the active workspace with restored size and position, while a recovered applications might restore additional state such as active workspace and stacking order.
# xx_session_v1

A xx_session_v1 object represents a session for an application. While the object exists, all surfaces which have been added to the session will have states stored by the compositor which can be reapplied at a later time. Two sessions cannot exist for the same identifier string. States for surfaces added to a session are automatically updated by the compositor when they are changed. Surfaces which have been added to a session are automatically removed from the session if xdg_toplevel.destroy is called for the surface.

Requests
- #
  destroy
  
  Destroy the session
  
  void xx_session_v1_destroy(
  struct xx_session_v1* xx_session_v1
  )
  
  Destroy a session object, preserving the current state but not continuing to make further updates if state changes occur. This makes the associated xx_toplevel_session_v1 objects inert.
- #
  remove
  
  Remove the session
  
  void xx_session_v1_remove(
  struct xx_session_v1* xx_session_v1
  )
  
  Remove the session, making it no longer available for restoration. A compositor should in response to this request remove the data related to this session from its storage.
- #
  add_toplevel
  
  add a new surface to the session
  
  struct xx_toplevel_session_v1* xx_session_v1_add_toplevel(
  struct xx_session_v1* xx_session_v1,
  
  struct xdg_toplevel* toplevel,
  
  const char* name
  )
  
  Attempt to add a given surface to the session. The passed name is used to identify what window is being restored, and may be used store window specific state within the session. Calling this with a toplevel that is already managed by the session with the same associated will raise an in_use error.
- #
  restore_toplevel
  
  restore a surface state
  
  struct xx_toplevel_session_v1* xx_session_v1_restore_toplevel(
  struct xx_session_v1* xx_session_v1,
  
  struct xdg_toplevel* toplevel,
  
  const char* name
  )
  
  Inform the compositor that the toplevel associated with the passed name should have its window management state restored. Calling this with a toplevel that is already managed by the session with the same associated will raise an in_use error. This request must be called prior to the first commit on the associated wl_surface, otherwise an already_mapped error is raised. As part of the initial configure sequence, if the toplevel was successfully restored, a xx_toplevel_session_v1.restored event is emitted. See the xx_toplevel_session_v1.restored event for further details.
Events
- #
  created
  
  newly-created session id
  
  const char* id
  
  Emitted at most once some time after getting a new session object. It means that no previous state was restored, and a new session was created. The passed id can be used to restore previous sessions.
- #
  restored
  
  the session has been restored
  
  Emitted at most once some time after getting a new session object. It means that previous state was at least partially restored. The same id can again be used to restore previous sessions.
- #
  replaced
  
  the session has been restored
  
  Emitted at most once, if the session was taken over by some other client. When this happens, the session and all its toplevel session objects become inert, and should be destroyed.
Enums
- #
  error
  
  XX_SESSION_V1_ERROR_INVALID_RESTORE /* restore cannot be performed after initial toplevel commit */
  
  XX_SESSION_V1_ERROR_NAME_IN_USE /* toplevel name is already in used */
  
  XX_SESSION_V1_ERROR_ALREADY_MAPPED /* toplevel was already mapped when restored */
# xx_toplevel_session_v1

Requests
- #
  destroy
  
  Destroy the object
  
  void xx_toplevel_session_v1_destroy(
  struct xx_toplevel_session_v1* xx_toplevel_session_v1
  )
  
  Destroy the object. This has no effect window management of the associated toplevel.
- #
  remove
  
  remove a surface from the session
  
  void xx_toplevel_session_v1_remove(
  struct xx_toplevel_session_v1* xx_toplevel_session_v1
  )
  
  Remove a specified surface from the session and render any corresponding xx_toplevel_session_v1 object inert. The compositor should remove any data related to the toplevel in the corresponding session from its internal storage.
Events
- #
  restored
  
  a toplevel's session has been restored
  
  struct xdg_toplevel* surface
  
  The "restored" event is emitted prior to the first xdg_toplevel.configure for the toplevel. It will only be emitted after xx_session_v1.restore_toplevel, and the initial empty surface state has been applied, and it indicates that the surface's session is being restored with this configure event.

Copyright Info

Copyright 2018 Mike Blumenkrantz Copyright 2018 Samsung Electronics Co., Ltd Copyright 2018 Red Hat Inc. 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.

xx_session_management_v1

# xx_session_manager_v1

Requests

Enums

# xx_session_v1

Requests

Events

Enums

# xx_toplevel_session_v1

Requests

Events

Copyright Info