Documentation for <wlr/types/wlr_xdg_shell.h>

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struct wlr_xdg_client 

struct wlr_xdg_client {
	struct wlr_xdg_shell *shell;
	struct wl_resource *resource;
	struct wl_client *client;
	struct wl_list surfaces;
	
	struct wl_list link; // wlr_xdg_shell.clients
	
	uint32_t ping_serial;
	struct wl_event_source *ping_timer;
};

struct wlr_xdg_popup 

struct wlr_xdg_popup {
	struct wlr_xdg_surface *base;
	struct wl_list link;
	
	struct wl_resource *resource;
	struct wlr_surface *parent;
	struct wlr_seat *seat;
	
	struct wlr_xdg_popup_configure scheduled;
	
	struct wlr_xdg_popup_state current, pending;
	
	struct {
		struct wl_signal destroy;
		
		struct wl_signal reposition;
	} events;
	
	struct wl_list grab_link; // wlr_xdg_popup_grab.popups
	
	// private state
	
	struct wlr_surface_synced synced;
};

struct wlr_xdg_popup_configure 

struct wlr_xdg_popup_configure {
	uint32_t fields; // enum wlr_xdg_popup_configure_field
	struct wlr_box geometry;
	struct wlr_xdg_positioner_rules rules;
	uint32_t reposition_token;
};

enum wlr_xdg_popup_configure_field 

enum wlr_xdg_popup_configure_field {
	WLR_XDG_POPUP_CONFIGURE_REPOSITION_TOKEN,
};

wlr_xdg_popup_destroy() 

void wlr_xdg_popup_destroy(​struct wlr_xdg_popup *popup);

Notify the client that the popup has been dismissed and destroy the struct wlr_xdg_popup, rendering the resource inert.

wlr_xdg_popup_from_resource() 

struct wlr_xdg_popup *wlr_xdg_popup_from_resource(​struct wl_resource *resource);

Get the corresponding struct wlr_xdg_popup from a resource.

Aborts if the resource doesn't have the correct type. Returns NULL if the resource is inert.

wlr_xdg_popup_get_position() 

void wlr_xdg_popup_get_position(​struct wlr_xdg_popup *popup, double *popup_sx, double *popup_sy);

Get the position for this popup in the surface parent's coordinate system.

wlr_xdg_popup_get_toplevel_coords() 

void wlr_xdg_popup_get_toplevel_coords(​struct wlr_xdg_popup *popup, int popup_sx, int popup_sy, int *toplevel_sx, int *toplevel_sy);

Convert the given coordinates in the popup coordinate system to the toplevel surface coordinate system.

struct wlr_xdg_popup_grab 

struct wlr_xdg_popup_grab {
	struct wl_client *client;
	struct wlr_seat_pointer_grab pointer_grab;
	struct wlr_seat_keyboard_grab keyboard_grab;
	struct wlr_seat_touch_grab touch_grab;
	struct wlr_seat *seat;
	struct wl_list popups;
	struct wl_list link; // wlr_xdg_shell.popup_grabs
	struct wl_listener seat_destroy;
};

struct wlr_xdg_popup_state 

struct wlr_xdg_popup_state {
	// Position of the popup relative to the upper left corner of
	// the window geometry of the parent surface
	struct wlr_box geometry;
	
	bool reactive;
};

wlr_xdg_popup_try_from_wlr_surface() 

struct wlr_xdg_popup *wlr_xdg_popup_try_from_wlr_surface(​struct wlr_surface *surface);

Get a struct wlr_xdg_popup from a struct wlr_surface.

Returns NULL if the surface doesn't have the xdg_surface role, the xdg_surface is not a popup, or the xdg_surface/xdg_popup objects have been destroyed.

wlr_xdg_popup_unconstrain_from_box() 

void wlr_xdg_popup_unconstrain_from_box(​struct wlr_xdg_popup *popup, const struct wlr_box *toplevel_space_box);

Set the geometry of this popup to unconstrain it according to its xdg-positioner rules. The box should be in the popup's root toplevel parent surface coordinate system.

struct wlr_xdg_positioner 

struct wlr_xdg_positioner {
	struct wl_resource *resource;
	struct wlr_xdg_positioner_rules rules;
};

wlr_xdg_positioner_from_resource() 

struct wlr_xdg_positioner *wlr_xdg_positioner_from_resource(​struct wl_resource *resource);

Get the corresponding struct wlr_xdg_positioner from a resource.

Aborts if the resource doesn't have the correct type.

struct wlr_xdg_positioner_rules 

struct wlr_xdg_positioner_rules {
	struct wlr_box anchor_rect;
	enum xdg_positioner_anchor anchor;
	enum xdg_positioner_gravity gravity;
	enum xdg_positioner_constraint_adjustment constraint_adjustment;
	
	bool reactive;
	
	bool has_parent_configure_serial;
	uint32_t parent_configure_serial;
	
	struct {
		int32_t width, height;
	} size, parent_size;
	
	struct {
		int32_t x, y;
	} offset;
};

wlr_xdg_positioner_rules_get_geometry() 

void wlr_xdg_positioner_rules_get_geometry(​const struct wlr_xdg_positioner_rules *rules, struct wlr_box *box);

Get the geometry based on positioner rules.

wlr_xdg_positioner_rules_unconstrain_box() 

void wlr_xdg_positioner_rules_unconstrain_box(​const struct wlr_xdg_positioner_rules *rules, const struct wlr_box *constraint, struct wlr_box *box);

Unconstrain the box from the constraint area according to positioner rules.

struct wlr_xdg_shell 

struct wlr_xdg_shell {
	struct wl_global *global;
	uint32_t version;
	struct wl_list clients;
	struct wl_list popup_grabs;
	uint32_t ping_timeout;
	
	struct wl_listener display_destroy;
	
	struct {
		struct wl_signal new_surface; // struct wlr_xdg_surface
		struct wl_signal new_toplevel; // struct wlr_xdg_toplevel
		struct wl_signal new_popup; // struct wlr_xdg_popup
		struct wl_signal destroy;
	} events;
	
	void *data;
};

wlr_xdg_shell_create() 

struct wlr_xdg_shell *wlr_xdg_shell_create(​struct wl_display *display, uint32_t version);

Create the xdg_wm_base global with the specified version.

struct wlr_xdg_surface 

struct wlr_xdg_surface {
	struct wlr_xdg_client *client;
	struct wl_resource *resource;
	struct wlr_surface *surface;
	struct wl_list link; // wlr_xdg_client.surfaces
	
	/**
	 * The lifetime-bound role of the xdg_surface. WLR_XDG_SURFACE_ROLE_NONE
	 * if the role was never set.
	 */
	enum wlr_xdg_surface_role role;
	/**
	 * The role object representing the role. NULL if the object was destroyed.
	 */
	struct wl_resource *role_resource;
	
	// NULL if the role resource is inert
	union {
		struct wlr_xdg_toplevel *toplevel;
		struct wlr_xdg_popup *popup;
	} ;
	
	struct wl_list popups; // wlr_xdg_popup.link
	
	bool configured;
	struct wl_event_source *configure_idle;
	uint32_t scheduled_serial;
	struct wl_list configure_list;
	
	struct wlr_xdg_surface_state current, pending;
	
	// Whether the surface is ready to receive configure events
	 bool initialized;
	// Whether the latest commit is an initial commit
	 bool initial_commit;
	
	struct {
		struct wl_signal destroy;
		struct wl_signal ping_timeout;
		struct wl_signal new_popup;
		
		// for protocol extensions
		struct wl_signal configure; // struct wlr_xdg_surface_configure
		struct wl_signal ack_configure; // struct wlr_xdg_surface_configure
	} events;
	
	void *data;
	
	// private state
	
	struct wlr_surface_synced synced;
	
	struct wl_listener role_resource_destroy;
};

An xdg-surface is a user interface element requiring management by the compositor. An xdg-surface alone isn't useful, a role should be assigned to it in order to map it.

struct wlr_xdg_surface_configure 

struct wlr_xdg_surface_configure {
	struct wlr_xdg_surface *surface;
	struct wl_list link; // wlr_xdg_surface.configure_list
	uint32_t serial;
	
	union {
		struct wlr_xdg_toplevel_configure *toplevel_configure;
		struct wlr_xdg_popup_configure *popup_configure;
	} ;
};

wlr_xdg_surface_for_each_popup_surface() 

void wlr_xdg_surface_for_each_popup_surface(​struct wlr_xdg_surface *surface, wlr_surface_iterator_func_t iterator, void *user_data);

Call `iterator` on each mapped popup's surface and popup's subsurface in the xdg-surface tree (whether or not this xdg-surface is mapped), with the surfaces's position relative to the root xdg-surface. The function is called from root to leaves (in rendering order).

wlr_xdg_surface_for_each_surface() 

void wlr_xdg_surface_for_each_surface(​struct wlr_xdg_surface *surface, wlr_surface_iterator_func_t iterator, void *user_data);

Call `iterator` on each mapped surface and popup in the xdg-surface tree (whether or not this xdg-surface is mapped), with the surface's position relative to the root xdg-surface. The function is called from root to leaves (in rendering order).

wlr_xdg_surface_from_resource() 

struct wlr_xdg_surface *wlr_xdg_surface_from_resource(​struct wl_resource *resource);

Get the corresponding struct wlr_xdg_surface from a resource.

Aborts if the resource doesn't have the correct type. Returns NULL if the resource is inert.

wlr_xdg_surface_get_geometry() 

void wlr_xdg_surface_get_geometry(​struct wlr_xdg_surface *surface, struct wlr_box *box);

Get the surface geometry.

This is either the geometry as set by the client, or defaulted to the bounds of the surface + the subsurfaces (as specified by the protocol).

The x and y value can be < 0.

wlr_xdg_surface_ping() 

void wlr_xdg_surface_ping(​struct wlr_xdg_surface *surface);

Send a ping to the surface. If the surface does not respond in a reasonable amount of time, the ping_timeout event will be emitted.

wlr_xdg_surface_popup_surface_at() 

struct wlr_surface *wlr_xdg_surface_popup_surface_at(​struct wlr_xdg_surface *surface, double sx, double sy, double *sub_x, double *sub_y);

Find a surface within this xdg-surface's popup tree at the given surface-local coordinates. Returns the surface and coordinates in the leaf surface coordinate system or NULL if no surface is found at that location.

enum wlr_xdg_surface_role 

enum wlr_xdg_surface_role {
	WLR_XDG_SURFACE_ROLE_NONE,
	WLR_XDG_SURFACE_ROLE_TOPLEVEL,
	WLR_XDG_SURFACE_ROLE_POPUP,
};

wlr_xdg_surface_schedule_configure() 

uint32_t wlr_xdg_surface_schedule_configure(​struct wlr_xdg_surface *surface);

Schedule a surface configuration. This should only be called by protocols extending the shell.

struct wlr_xdg_surface_state 

struct wlr_xdg_surface_state {
	uint32_t configure_serial;
	struct wlr_box geometry;
};

wlr_xdg_surface_surface_at() 

struct wlr_surface *wlr_xdg_surface_surface_at(​struct wlr_xdg_surface *surface, double sx, double sy, double *sub_x, double *sub_y);

Find a surface within this xdg-surface tree at the given surface-local coordinates. Returns the surface and coordinates in the leaf surface coordinate system or NULL if no surface is found at that location.

wlr_xdg_surface_try_from_wlr_surface() 

struct wlr_xdg_surface *wlr_xdg_surface_try_from_wlr_surface(​struct wlr_surface *surface);

Get a struct wlr_xdg_surface from a struct wlr_surface.

Returns NULL if the surface doesn't have the xdg_surface role or if the xdg_surface has been destroyed.

struct wlr_xdg_toplevel 

struct wlr_xdg_toplevel {
	struct wl_resource *resource;
	struct wlr_xdg_surface *base;
	
	struct wlr_xdg_toplevel *parent;
	struct wl_listener parent_unmap;
	
	struct wlr_xdg_toplevel_state current, pending;
	
	// Properties to be sent to the client in the next configure event.
	struct wlr_xdg_toplevel_configure scheduled;
	
	// Properties that the client has requested. Intended to be checked
	// by the compositor on surface map and state change requests (such as
	// xdg_toplevel.set_fullscreen) and handled accordingly.
	struct wlr_xdg_toplevel_requested requested;
	
	char *title;
	char *app_id;
	
	struct {
		struct wl_signal destroy;
		
		// Note: as per xdg-shell protocol, the compositor has to
		// handle state requests by sending a configure event,
		// even if it didn't actually change the state. Therefore,
		// every compositor implementing xdg-shell support *must*
		// listen to these signals and schedule a configure event
		// immediately or at some time in the future; not doing so
		// is a protocol violation.
		struct wl_signal request_maximize;
		struct wl_signal request_fullscreen;
		
		struct wl_signal request_minimize;
		struct wl_signal request_move;
		struct wl_signal request_resize;
		struct wl_signal request_show_window_menu;
		struct wl_signal set_parent;
		struct wl_signal set_title;
		struct wl_signal set_app_id;
	} events;
	
	// private state
	
	struct wlr_surface_synced synced;
};

struct wlr_xdg_toplevel_configure 

struct wlr_xdg_toplevel_configure {
	uint32_t fields; // enum wlr_xdg_toplevel_configure_field
	bool maximized, fullscreen, resizing, activated, suspended;
	uint32_t tiled; // enum wlr_edges
	int32_t width, height;
	struct {
		int32_t width, height;
	} bounds;
	uint32_t wm_capabilities; // enum wlr_xdg_toplevel_wm_capabilities
};

enum wlr_xdg_toplevel_configure_field 

enum wlr_xdg_toplevel_configure_field {
	WLR_XDG_TOPLEVEL_CONFIGURE_BOUNDS,
	WLR_XDG_TOPLEVEL_CONFIGURE_WM_CAPABILITIES,
};

wlr_xdg_toplevel_from_resource() 

struct wlr_xdg_toplevel *wlr_xdg_toplevel_from_resource(​struct wl_resource *resource);

Get the corresponding struct wlr_xdg_toplevel from a resource.

Aborts if the resource doesn't have the correct type. Returns NULL if the resource is inert.

struct wlr_xdg_toplevel_move_event 

struct wlr_xdg_toplevel_move_event {
	struct wlr_xdg_toplevel *toplevel;
	struct wlr_seat_client *seat;
	uint32_t serial;
};

struct wlr_xdg_toplevel_requested 

struct wlr_xdg_toplevel_requested {
	bool maximized, minimized, fullscreen;
	struct wlr_output *fullscreen_output;
	struct wl_listener fullscreen_output_destroy;
};

struct wlr_xdg_toplevel_resize_event 

struct wlr_xdg_toplevel_resize_event {
	struct wlr_xdg_toplevel *toplevel;
	struct wlr_seat_client *seat;
	uint32_t serial;
	uint32_t edges;
};

wlr_xdg_toplevel_send_close() 

void wlr_xdg_toplevel_send_close(​struct wlr_xdg_toplevel *toplevel);

Request that this toplevel closes.

wlr_xdg_toplevel_set_activated() 

uint32_t wlr_xdg_toplevel_set_activated(​struct wlr_xdg_toplevel *toplevel, bool activated);

Request that this toplevel show itself in an activated or deactivated state. Returns the associated configure serial.

wlr_xdg_toplevel_set_bounds() 

uint32_t wlr_xdg_toplevel_set_bounds(​struct wlr_xdg_toplevel *toplevel, int32_t width, int32_t height);

Configure the recommended bounds for the client's window geometry size. Returns the associated configure serial.

wlr_xdg_toplevel_set_fullscreen() 

uint32_t wlr_xdg_toplevel_set_fullscreen(​struct wlr_xdg_toplevel *toplevel, bool fullscreen);

Request that this toplevel consider itself fullscreen or not fullscreen. Returns the associated configure serial.

wlr_xdg_toplevel_set_maximized() 

uint32_t wlr_xdg_toplevel_set_maximized(​struct wlr_xdg_toplevel *toplevel, bool maximized);

Request that this toplevel consider itself maximized or not maximized. Returns the associated configure serial.

wlr_xdg_toplevel_set_parent() 

bool wlr_xdg_toplevel_set_parent(​struct wlr_xdg_toplevel *toplevel, struct wlr_xdg_toplevel *parent);

wlr_xdg_toplevel_set_resizing() 

uint32_t wlr_xdg_toplevel_set_resizing(​struct wlr_xdg_toplevel *toplevel, bool resizing);

Request that this toplevel consider itself to be resizing or not resizing. Returns the associated configure serial.

wlr_xdg_toplevel_set_size() 

uint32_t wlr_xdg_toplevel_set_size(​struct wlr_xdg_toplevel *toplevel, int32_t width, int32_t height);

Request that this toplevel surface be the given size. Returns the associated configure serial.

wlr_xdg_toplevel_set_suspended() 

uint32_t wlr_xdg_toplevel_set_suspended(​struct wlr_xdg_toplevel *toplevel, bool suspended);

Request that this toplevel consider itself suspended or not suspended. Returns the associated configure serial.

wlr_xdg_toplevel_set_tiled() 

uint32_t wlr_xdg_toplevel_set_tiled(​struct wlr_xdg_toplevel *toplevel, uint32_t tiled_edges);

Request that this toplevel consider itself in a tiled layout and some edges are adjacent to another part of the tiling grid. `tiled_edges` is a bitfield of enum wlr_edges. Returns the associated configure serial.

wlr_xdg_toplevel_set_wm_capabilities() 

uint32_t wlr_xdg_toplevel_set_wm_capabilities(​struct wlr_xdg_toplevel *toplevel, uint32_t caps);

Configure the window manager capabilities for this toplevel. `caps` is a bitfield of `enum wlr_xdg_toplevel_wm_capabilities`. Returns the associated configure serial.

struct wlr_xdg_toplevel_show_window_menu_event 

struct wlr_xdg_toplevel_show_window_menu_event {
	struct wlr_xdg_toplevel *toplevel;
	struct wlr_seat_client *seat;
	uint32_t serial;
	int32_t x, y;
};

struct wlr_xdg_toplevel_state 

struct wlr_xdg_toplevel_state {
	bool maximized, fullscreen, resizing, activated, suspended;
	uint32_t tiled; // enum wlr_edges
	int32_t width, height;
	int32_t max_width, max_height;
	int32_t min_width, min_height;
};

wlr_xdg_toplevel_try_from_wlr_surface() 

struct wlr_xdg_toplevel *wlr_xdg_toplevel_try_from_wlr_surface(​struct wlr_surface *surface);

Get a struct wlr_xdg_toplevel from a struct wlr_surface.

Returns NULL if the surface doesn't have the xdg_surface role, the xdg_surface is not a toplevel, or the xdg_surface/xdg_toplevel objects have been destroyed.

enum wlr_xdg_toplevel_wm_capabilities 

enum wlr_xdg_toplevel_wm_capabilities {
	WLR_XDG_TOPLEVEL_WM_CAPABILITIES_WINDOW_MENU,
	WLR_XDG_TOPLEVEL_WM_CAPABILITIES_MAXIMIZE,
	WLR_XDG_TOPLEVEL_WM_CAPABILITIES_FULLSCREEN,
	WLR_XDG_TOPLEVEL_WM_CAPABILITIES_MINIMIZE,
};