Data Fields | |
void(* | destroy )(struct wl_client *client, struct wl_resource *resource) |
destroy the xdg_toplevel More... | |
void(* | set_parent )(struct wl_client *client, struct wl_resource *resource, struct wl_resource *parent) |
set the parent of this surface More... | |
void(* | set_title )(struct wl_client *client, struct wl_resource *resource, const char *title) |
set surface title More... | |
void(* | set_app_id )(struct wl_client *client, struct wl_resource *resource, const char *app_id) |
set application ID More... | |
void(* | show_window_menu )(struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial, int32_t x, int32_t y) |
show the window menu More... | |
void(* | move )(struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial) |
start an interactive move More... | |
void(* | resize )(struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial, uint32_t edges) |
start an interactive resize More... | |
void(* | set_max_size )(struct wl_client *client, struct wl_resource *resource, int32_t width, int32_t height) |
set the maximum size More... | |
void(* | set_min_size )(struct wl_client *client, struct wl_resource *resource, int32_t width, int32_t height) |
set the minimum size More... | |
void(* | set_maximized )(struct wl_client *client, struct wl_resource *resource) |
maximize the window More... | |
void(* | unset_maximized )(struct wl_client *client, struct wl_resource *resource) |
unmaximize the window More... | |
void(* | set_fullscreen )(struct wl_client *client, struct wl_resource *resource, struct wl_resource *output) |
set the window as fullscreen on an output More... | |
void(* | unset_fullscreen )(struct wl_client *client, struct wl_resource *resource) |
unset the window as fullscreen More... | |
void(* | set_minimized )(struct wl_client *client, struct wl_resource *resource) |
set the window as minimized More... | |
void(* xdg_toplevel_interface::destroy) (struct wl_client *client, struct wl_resource *resource) |
destroy the xdg_toplevel
This request destroys the role surface and unmaps the surface; see "Unmapping" behavior in interface section for details.
void(* xdg_toplevel_interface::set_parent) (struct wl_client *client, struct wl_resource *resource, struct wl_resource *parent) |
set the parent of this surface
Set the "parent" of this surface. This surface should be stacked above the parent surface and all other ancestor surfaces.
Parent windows should be set on dialogs, toolboxes, or other "auxiliary" surfaces, so that the parent is raised when the dialog is raised.
Setting a null parent for a child window removes any parent-child relationship for the child. Setting a null parent for a window which currently has no parent is a no-op.
If the parent is unmapped then its children are managed as though the parent of the now-unmapped parent has become the parent of this surface. If no parent exists for the now-unmapped parent then the children are managed as though they have no parent surface.
void(* xdg_toplevel_interface::set_title) (struct wl_client *client, struct wl_resource *resource, const char *title) |
set surface title
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.
void(* xdg_toplevel_interface::set_app_id) (struct wl_client *client, struct wl_resource *resource, const char *app_id) |
set application ID
Set an application identifier for the surface.
The app ID identifies the general class of applications to which the surface belongs. The compositor can use this to group multiple surfaces together, or to determine how to launch a new application.
For D-Bus activatable applications, the app ID is used as the D-Bus service name.
The compositor shell will try to group application surfaces together by their app ID. As a best practice, it is suggested to select app ID's that match the basename of the application's .desktop file. For example, "org.freedesktop.FooViewer" where the .desktop file is "org.freedesktop.FooViewer.desktop".
See the desktop-entry specification [0] for more details on application identifiers and how they relate to well-known D-Bus names and .desktop files.
void(* xdg_toplevel_interface::show_window_menu) (struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial, int32_t x, int32_t y) |
show the window menu
Clients implementing client-side decorations might want to show a context menu when right-clicking on the decorations, giving the user a menu that they can use to maximize or minimize the window.
This request asks the compositor to pop up such a window menu at the given position, relative to the local surface coordinates of the parent surface. There are no guarantees as to what menu items the window menu contains.
This request must be used in response to some sort of user action like a button press, key press, or touch down event.
seat | the wl_seat of the user event |
serial | the serial of the user event |
x | the x position to pop up the window menu at |
y | the y position to pop up the window menu at |
void(* xdg_toplevel_interface::move) (struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial) |
start an interactive move
Start an interactive, user-driven move of the surface.
This request must be used in response to some sort of user action like a button press, key press, or touch down event. The passed serial is used to determine the type of interactive move (touch, pointer, etc).
The server may ignore move requests depending on the state of the surface (e.g. fullscreen or maximized), or if the passed serial is no longer valid.
If triggered, the surface will lose the focus of the device (wl_pointer, wl_touch, etc) used for the move. It is up to the compositor to visually indicate that the move is taking place, such as updating a pointer cursor, during the move. There is no guarantee that the device focus will return when the move is completed.
seat | the wl_seat of the user event |
serial | the serial of the user event |
void(* xdg_toplevel_interface::resize) (struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial, uint32_t edges) |
start an interactive resize
Start a user-driven, interactive resize of the surface.
This request must be used in response to some sort of user action like a button press, key press, or touch down event. The passed serial is used to determine the type of interactive resize (touch, pointer, etc).
The server may ignore resize requests depending on the state of the surface (e.g. fullscreen or maximized).
If triggered, the client will receive configure events with the "resize" state enum value and the expected sizes. See the "resize" enum value for more details about what is required. The client must also acknowledge configure events using "ack_configure". After the resize is completed, the client will receive another "configure" event without the resize state.
If triggered, the surface also will lose the focus of the device (wl_pointer, wl_touch, etc) used for the resize. It is up to the compositor to visually indicate that the resize is taking place, such as updating a pointer cursor, during the resize. There is no guarantee that the device focus will return when the resize is completed.
The edges parameter specifies how the surface should be resized, and is one of the values of the resize_edge enum. The compositor may use this information to update the surface position for example when dragging the top left corner. The compositor may also use this information to adapt its behavior, e.g. choose an appropriate cursor image.
seat | the wl_seat of the user event |
serial | the serial of the user event |
edges | which edge or corner is being dragged |
void(* xdg_toplevel_interface::set_max_size) (struct wl_client *client, struct wl_resource *resource, int32_t width, int32_t height) |
set the maximum size
Set a maximum size for the window.
The client can specify a maximum size so that the compositor does not try to configure the window beyond this size.
The width and height arguments are in window geometry coordinates. See xdg_surface.set_window_geometry.
Values set in this way are double-buffered. They will get applied on the next commit.
The compositor can use this information to allow or disallow different states like maximize or fullscreen and draw accurate animations.
Similarly, a tiling window manager may use this information to place and resize client windows in a more effective way.
The client should not rely on the compositor to obey the maximum size. The compositor may decide to ignore the values set by the client and request a larger size.
If never set, or a value of zero in the request, means that the client has no expected maximum size in the given dimension. As a result, a client wishing to reset the maximum size to an unspecified state can use zero for width and height in the request.
Requesting a maximum size to be smaller than the minimum size of a surface is illegal and will result in a protocol error.
The width and height must be greater than or equal to zero. Using strictly negative values for width and height will result in a protocol error.
void(* xdg_toplevel_interface::set_min_size) (struct wl_client *client, struct wl_resource *resource, int32_t width, int32_t height) |
set the minimum size
Set a minimum size for the window.
The client can specify a minimum size so that the compositor does not try to configure the window below this size.
The width and height arguments are in window geometry coordinates. See xdg_surface.set_window_geometry.
Values set in this way are double-buffered. They will get applied on the next commit.
The compositor can use this information to allow or disallow different states like maximize or fullscreen and draw accurate animations.
Similarly, a tiling window manager may use this information to place and resize client windows in a more effective way.
The client should not rely on the compositor to obey the minimum size. The compositor may decide to ignore the values set by the client and request a smaller size.
If never set, or a value of zero in the request, means that the client has no expected minimum size in the given dimension. As a result, a client wishing to reset the minimum size to an unspecified state can use zero for width and height in the request.
Requesting a minimum size to be larger than the maximum size of a surface is illegal and will result in a protocol error.
The width and height must be greater than or equal to zero. Using strictly negative values for width and height will result in a protocol error.
void(* xdg_toplevel_interface::set_maximized) (struct wl_client *client, struct wl_resource *resource) |
maximize the window
Maximize the surface.
After requesting that the surface should be maximized, the compositor will respond by emitting a configure event with the "maximized" state and the required window geometry. The client should then update its content, drawing it in a maximized state, i.e. without shadow or other decoration outside of the window geometry. The client must also acknowledge the configure when committing the new content (see ack_configure).
It is up to the compositor to decide how and where to maximize the surface, for example which output and what region of the screen should be used.
If the surface was already maximized, the compositor will still emit a configure event with the "maximized" state.
If the surface is in a fullscreen state, this request has no direct effect. It will alter the state the surface is returned to when unmaximized if not overridden by the compositor.
void(* xdg_toplevel_interface::unset_maximized) (struct wl_client *client, struct wl_resource *resource) |
unmaximize the window
Unmaximize the surface.
After requesting that the surface should be unmaximized, the compositor will respond by emitting a configure event without the "maximized" state. If available, the compositor will include the window geometry dimensions the window had prior to being maximized in the configure event. The client must then update its content, drawing it in a regular state, i.e. potentially with shadow, etc. The client must also acknowledge the configure when committing the new content (see ack_configure).
It is up to the compositor to position the surface after it was unmaximized; usually the position the surface had before maximizing, if applicable.
If the surface was already not maximized, the compositor will still emit a configure event without the "maximized" state.
If the surface is in a fullscreen state, this request has no direct effect. It will alter the state the surface is returned to when unmaximized if not overridden by the compositor.
void(* xdg_toplevel_interface::set_fullscreen) (struct wl_client *client, struct wl_resource *resource, struct wl_resource *output) |
set the window as fullscreen on an output
Make the surface fullscreen.
After requesting that the surface should be fullscreened, the compositor will respond by emitting a configure event with the "fullscreen" state and the fullscreen window geometry. The client must also acknowledge the configure when committing the new content (see ack_configure).
The output passed by the request indicates the client's preference as to which display it should be set fullscreen on. If this value is NULL, it's up to the compositor to choose which display will be used to map this surface.
If the surface doesn't cover the whole output, the compositor will position the surface in the center of the output and compensate with with border fill covering the rest of the output. The content of the border fill is undefined, but should be assumed to be in some way that attempts to blend into the surrounding area (e.g. solid black).
If the fullscreened surface is not opaque, the compositor must make sure that other screen content not part of the same surface tree (made up of subsurfaces, popups or similarly coupled surfaces) are not visible below the fullscreened surface.
void(* xdg_toplevel_interface::unset_fullscreen) (struct wl_client *client, struct wl_resource *resource) |
unset the window as fullscreen
Make the surface no longer fullscreen.
After requesting that the surface should be unfullscreened, the compositor will respond by emitting a configure event without the "fullscreen" state.
Making a surface unfullscreen sets states for the surface based on the following: * the state(s) it may have had before becoming fullscreen * any state(s) decided by the compositor * any state(s) requested by the client while the surface was fullscreen
The compositor may include the previous window geometry dimensions in the configure event, if applicable.
The client must also acknowledge the configure when committing the new content (see ack_configure).
void(* xdg_toplevel_interface::set_minimized) (struct wl_client *client, struct wl_resource *resource) |
set the window as minimized
Request that the compositor minimize your surface. There is no way to know if the surface is currently minimized, nor is there any way to unset minimization on this surface.
If you are looking to throttle redrawing when minimized, please instead use the wl_surface.frame event for this, as this will also work with live previews on windows in Alt-Tab, Expose or similar compositor features.