Copyright 2016 The Chromium Authors. 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. remote_shell allows clients to turn a wl_surface into a "real window" which can be stacked and activated by the user. Warning! The protocol described in this file is experimental and backward incompatible changes may be made. Backward compatible changes may be added together with the corresponding interface version bump. Backward incompatible changes are done by bumping the version number in the protocol and interface names and resetting the interface version. Once the protocol is to be declared stable, the 'z' prefix and the version number in the protocol and interface names are removed and the interface version number is reset. The global interface that allows clients to turn a wl_surface into a "real window" which is remotely managed but can be stacked, activated and made fullscreen by the user. Determine how a remote surface should be stacked relative to other shell surfaces. Defines common show states for shell surfaces. Determine how a client should layout surfaces. Destroy this remote_shell object. Destroying a bound remote_shell object while there are surfaces still alive created by this remote_shell object instance is illegal and will result in a protocol error. This creates an remote_surface for the given surface and gives it the remote_surface role. A wl_surface can only be given a remote_surface role once. If get_remote_surface is called with a wl_surface that already has an active remote_surface associated with it, or if it had any other role, an error is raised. See the documentation of remote_surface for more details about what an remote_surface is and how it is used. Notifies client that the activated surface changed. Creates a notification_surface for the given surface, gives it the notification_surface role and associated it with a notification id. [Deprecated] Suggests a re-configuration of remote shell. [Deprecated] Defines an area of the remote shell used for layout. Each series of "workspace" events must be terminated by a "configure" event. Suggests a new configuration of the remote shell. Preceded by a series of "workspace" events. Sends the default device scale factor. Creates an input_method_surface for the given surface, gives it the input_method_surface role. [Deprecated] Sends display size in pixels and display identification data, typically in EDID format. Preceded by a "workspace" event for the same display. [Deprecated] Sends display information such as size, work area and its related information. Each series of "workspace_info" events must be terminated by a "configure" event. Creates an toast_surface for the given surface, gives it the toast_surface role. Sends the layout_mode used by the server. Instantiate an interface extension for the given wl_output to provide remote shell functionality. Request the compositor to use the default_device_scale_factor to undo any scaling applied to the client's buffers. When this is disabled, the compositor will use the device_scale_factor of the display of the buffer to cancel any buffer scaling. Desktop client window focus state. Notifies client that the window focus state change. An interface that may be implemented by a wl_surface, for implementations that provide a desktop-style user interface and allows for remotely managed windows. It provides requests to treat surfaces like windows, allowing to set properties like app id and geometry. The client must call wl_surface.commit on the corresponding wl_surface for the remote_surface state to take effect. For a surface to be mapped by the compositor the client must have committed both an remote_surface state and a buffer. Determine the visibility behavior of the system UI. The orientation of the window. The type of the window. Unmap and destroy the window. The window will be effectively hidden from the user's point of view, and all state will be lost. Set an application identifier for the surface. [Deprecated] The window geometry of a window is its "visible bounds" from the user's perspective. Client-side decorations often have invisible portions like drop-shadows which should be ignored for the purposes of aligning, placing and constraining windows. The window geometry is double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the window geometry of the surface is set once, it is not possible to unset it, and it will remain the same until set_window_geometry is called again, even if a new subsurface or buffer is attached. If never set, the value is the full bounds of the output. This updates dynamically on every commit. The arguments are given in the output coordinate space. The width and height must be greater than zero. Set a scale factor that will be applied to surface and all descendants. [Deprecated] Request that surface needs a rectangular shadow. This is only a request that the surface should have a rectangular shadow. The compositor may choose to ignore this request. The arguments are given in the output coordinate space and specifies the inner bounds of the shadow. The arguments are given in the output coordinate space. Specifying zero width and height will disable the shadow. [Deprecated] Suggests the window's background opacity when the shadow is requested. Set a short title for the surface. This string may be used to identify the surface in a task bar, window list, or other user interface elements provided by the compositor. The string must be encoded in UTF-8. Set distance from the top of the surface to the contents. This distance typically represents the size of the window caption. Make the surface active and bring it to the front. Request that surface is maximized. The window geometry will be updated to whatever the compositor finds appropriate for a maximized window. This is only a request that the window should be maximized. The compositor may choose to ignore this request. The client should listen to set_maximized events to determine if the window was maximized or not. Request that surface is minimized. This is only a request that the window should be minimized. The compositor may choose to ignore this request. The client should listen to set_minimized events to determine if the window was minimized or not. Request that surface is restored. This restores the window geometry to what it was before the window was minimized, maximized or made fullscreen. This is only a request that the window should be restored. The compositor may choose to ignore this request. The client should listen to unset_maximized, unset_minimize and unset_fullscreen events to determine if the window was restored or not. Request that surface is made fullscreen. This is only a request that the window should be made fullscreen. The compositor may choose to ignore this request. The client should listen to set_fullscreen events to determine if the window was made fullscreen or not. Request that surface is made unfullscreen. This is only a request that the window should be made unfullscreen. The compositor may choose to ignore this request. The client should listen to unset_fullscreen events to determine if the window was made unfullscreen or not. Request that surface is pinned. This is only a request that the window should be pinned. The compositor may choose to ignore this request. The client should listen to state_changed events to determine if the window was pinned or not. If trusted flag is non-zero, the app can prevent users from exiting the pinned mode. Request that surface is unpinned. This is only a request that the window should be unpinned. The compositor may choose to ignore this request. The client should listen to unset_pinned events to determine if the window was unpinned or not. Suggests a surface should become system modal. Suggests a surface should become non system modal. The close event is sent by the compositor when the user wants the surface to be closed. This should be equivalent to the user clicking the close button in client-side decorations, if your application has any... This is only a request that the user intends to close your window. The client may choose to ignore this request, or show a dialog to ask the user to save their data... [Deprecated] The state_type_changed event is sent by the compositor when the surface state changed. This is an event to notify that the window state changed in compositor. The state change may be triggered by a client's request, or some user action directly handled by the compositor. The client may choose to ignore this event. Request that surface needs a rectangular shadow. This is only a request that the surface should have a rectangular shadow. The compositor may choose to ignore this request. The arguments are given in the remote surface coordinate space and specifies inner bounds of the shadow. Specifying zero width and height will disable the shadow. Requests how the surface will change the visibility of the system UI when it is made active. Request that surface is made to be always on top. This is only a request that the window should be always on top. The compositor may choose to ignore this request. Request that surface is made to be not always on top. This is only a request that the window should be not always on top. The compositor may choose to ignore this request. The configure event asks the client to change surface state. The client must apply the origin offset to window positions in set_window_geometry requests. The states listed in the event are state_type values, and might change due to a client request or an event directly handled by the compositor. Clients should arrange their surface for the new state, and then send an ack_configure request with the serial sent in this configure event at some point before committing the new surface. If the client receives multiple configure events before it can respond to one, it is free to discard all but the last event it received. When a configure event is received, if a client commits the surface in response to the configure event, then the client must make an ack_configure request sometime before the commit request, passing along the serial of the configure event. For instance, the compositor might use this information during display configuration to change its coordinate space for set_window_geometry requests only when the client has switched to the new coordinate space. If the client receives multiple configure events before it can respond to one, it only has to ack the last configure event. A client is not required to commit immediately after sending an ack_configure request - it may even ack_configure several times before its next surface commit. A client may send multiple ack_configure requests before committing, but only the last request sent before a commit indicates which configure event the client really is responding to. [Deprecated] Start an interactive, user-driven move of the surface. The compositor responds to this request with a configure event that transitions to the "moving" state. The client must only initiate motion after acknowledging the state change. The compositor can assume that subsequent set_window_geometry requests are position updates until the next state transition is acknowledged. The compositor may ignore move requests depending on the state of the surface, e.g. fullscreen or maximized. Set an orientation for the surface. Set the type of window. This is only a hint to the compositor and the compositor is free to ignore it. [Deprecated] Start an interactive, user-driven resize of the surface. The compositor responds to this request with a configure event that transitions to the "resizing" state. The client must only initiate resizing after acknowledging the state change. The compositor can assume that subsequent set_window_geometry requests are resizes until the next state transition is acknowledged. The compositor may ignore resize requests depending on the state of the surface, e.g. fullscreen or maximized. Expand input region of surface with resize outset. The compositor clips the input region of each surface to its bounds, unless the client requests a resize outset. In that case, the input region of the root surface is expanded to allow for some leeway around visible bounds when starting a user-driven resize. Notify the client of committed window geometry. The compositor sends this event when it commits window geometry. The client may use this information to convert coordinates of input events using the latest committed geometry. Specifies the cause of the window bounds change event. [Deprecated] The compositor requested to change its bounds. "bounds_change_reason" specifies the cause of the bounds change. The client may apply the different move/resize strategy depending on the reason. "display_id_hi", "display_id_lo" specifies in which workspace the surface should live in. The client responds with set_window_geometry request, with the bounds it is resized to (this may be different from the bounds requested). The client may ignore move request depending on the state, e.g, if it becomes resizable or other constrants. Request an interactive, user-driven move of the surface. "x" and "y" specifies the starting point of the pointer device that initiated the move. The compositor responds to this request with a drag_started event with "none" direction. Please see drag_started event for more details. The compositor may ignore move requests depending on the state of the surface, e.g. fullscreen or maximized. The resize direction for drag operation Notifies a client that the compositor started drag operation. "direction" specifies which direction it is being resized. "none" direction means just move but not resize. This will be followed by series of the "bounds_changed" event with "drag_resize" or "drag_move" reasons to update the window bounds druing the drag operation. Called when the drag operation is finished. "x" and "y" specifies the position of the pointer device used to drag. "canceled" is true if the drag operation is aborted during drag (e.g. by capture change or user action.) Request that surface can be in maximzied state. Request that surface can not be in maximzied state. Set a minimum size of the surface. Values set in this way are double-buffered. They will get applied on the next commit. Set a maximum size of the surface. Values set in this way are double-buffered. They will get applied on the next commit. Setting the same size as minimum size makes the surface unresizable. Request that surface is snapped to left. Request that surface is snapped to right. Request to start an interactive, user-driven resize of the surface. "x" and "y" specifies the starting point of the pointer device that initiated the reize. The compositor responds to this request with a "drag_started" event, followed by "bounds_changed" events, and ends the resize operation with a "drag_finhsed" event. The compositor determines the new bounds using the resize_direction and the pointer event location. The compositor may ignore resize requests depending on the state of the surface, e.g. fullscreen or maximized, or no drag event is in pregress. Frame type that can be used to decorate a surface. Enables compositor side frame decoration. |type| specifies the type of frame to use for the surface. The mask that represents buttons on frame. Updates the frame's button state. |visible_buttons| and |enabled_buttons| are the union of button mask defined in |frame_button_type| enum. The mask present in |enabled_buttons| but not in |visible_buttons| will be ignored. The extra informational string about the surface. This can be used to show the debug information in the title bar, or log messages. This is different from "set_title" which is used to identify the surface. The string must be encoded in UTF-8. Defines orientation request when a remote surface is in foreground. Request a specific orientation behavior when this surface is in foreground. Request that surface is set to Picture-in-Picture (PIP). [Deprecated] Set the "visible bounds" of a window from the user's perspective. Client-side decorations often have invisible portions like drop shadows which should be ignored for the purposes of aligning, placing and constraining windows. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_bounds is called again, even if a new sub- surface or buffer is attached. If never set, the value is the surface content bounds. This updates dynamically on every commit. The bounds are relative to the given display. If the display is invalid, they are assumed to be relative to the primary display. The width and height must be greater than zero. Set an aspect ratio of the surface. Values set in this way are double-buffered. They will get applied on the next commit. Setting the aspect ratio of the surface. The ratio of the values is used for the ratio of width to height of the surface. The size of surface is restricted to the ratio. If any value is zero, the restriction on aspect ratio is unset. Block server side IME and always send key events through Wayland. For some client, it's possible that server side IME is connected to the client through other mechanism e.g. ime.mojom. When set_ime_blocked is requested, server side IME should give up handling key events and forward those events through Wayland protocol. Unblock server side IME. Some events can be handled by server side IME, while others can still be sent through Wayland protocol. See the description of set_ime_blocked for detail. Zoom level change. Request application zoom level change. Set accessibility window ID to the surface Set this surface the original window for the current PIP window. Unset this surface the original window for the current PIP window. Set system gesture exclusion region in which system gestures e.g. back gesture should not be triggered. Enable the resize lock and put restrictions related to resizing on the shell surface. The resize lock state is double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Disable the resize lock and allow the shell surface to be resized freely. The resize lock state is double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. The compositor requested to change its bounds. "bounds_change_reason" specifies the cause of the bounds change. The client may apply the different move/resize strategy depending on the reason. The "output" specifies the wayland output in which the suface should live. The client responds with set_window_geometry request, with the bounds it is resized to (this may be different from the bounds requested). The client may ignore move request depending on the state, e.g, if it becomes resizable or other constrants. Set the "visible bounds" of a window from the user's perspective. Client-side decorations often have invisible portions like drop shadows which should be ignored for the purposes of aligning, placing and constraining windows. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_bounds is called again, even if a new sub- surface or buffer is attached. If never set, the value is the surface content bounds. This updates dynamically on every commit. The bounds are relative to the given display. If the display is invalid, they are assumed to be relative to the primary display. The width and height must be greater than zero. An interface that may be implemented by a wl_surface to host notification contents. Unmap and destroy the notification surface. Set an application identifier for the notification surface. An interface that may be implemented by a wl_surface to host IME contents. Unmap and destroy the input mtehod surface. [Deprecated] Set the "visible bounds" of a window from the user's perspective. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_bounds is called again, even if a new sub- surface or buffer is attached. If never set, the value is the surface content bounds. This updates dynamically on every commit. The bounds are relative to the given display. If the display is invalid, they are assumed to be relative to the primary display. The width and height must be greater than zero. Set the "visible bounds" of a window from the user's perspective. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_bounds is called again, even if a new sub- surface or buffer is attached. If never set, the value is the surface content bounds. This updates dynamically on every commit. The bounds are relative to the given display. If the display is invalid, they are assumed to be relative to the primary display. The width and height must be greater than zero. An interface that may be implemented by a wl_surface to host toast contents. Unmap and destroy the toast surface. [Deprecated] Set the position of bounds of a window from the user's perspective. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_position is called again, even if a new sub- surface or buffer is attached. If never set, the compositor will determine the toast position. The bounds are relative to the given display. If the display is invalid, they are assumed to be relative to the primary display. [Deprecated] Set the size of bounds of a window from the user's perspective. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_size is called again, even if a new sub- surface or buffer is attached. If never set, the value is the surface content bounds. This updates dynamically on every commit. The width and height must be greater than zero. Set the bounds of a toast window from the user's perspective. The bounds are double buffered, and will be applied at the time wl_surface.commit of the corresponding wl_surface is called. Once the bounds are set, it is not possible to unset them, and they will remain the same until set_bounds is called again, even if a new sub- surface or buffer is attached. If never set, the compositor will determine the toast position. The bounds are relative to the given display. If the display is invalid, they are assumed to be relative to the primary display. An additional interface to a wl_output object, which allows the client to access additional functionality for output. Destroy this remote_output object. [Deprecated] Sends the display identifier used by the server for the display. Sends the port to which the display is connected for the server. Sends the identification data for the display, typically in the EDID format. Sends inset information about a particular display in the display's native coordinates. Sends stable inset information about a particular display in the display's native coordinates. [Deprecated] Sends information about whether the systemui is visible. The "systemui_visibility" value is of enum type "systemui_visibility_state". Determine the behavior of the system UI. Sends information about whether the systemui behavior is auto hide. The "systemui_behavior" value is of enum type "systemui_behavior".