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xwayland: split headers

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We're about to get one more Xwayland-related thing, and this header
already contains two things.
This commit is contained in:
Simon Ser 2022-10-14 17:53:56 +02:00
parent fc3d8b228b
commit 05454618cd
4 changed files with 338 additions and 322 deletions
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322
include/wlr/xwayland.h
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@ -1,320 +1,2 @@
/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_XWAYLAND_H
#define WLR_XWAYLAND_H
#include <stdbool.h>
#include <time.h>
#include <wlr/config.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_seat.h>
#include <xcb/xcb.h>
#include <xcb/xcb_icccm.h>
struct wlr_xwm;
struct wlr_xwayland_cursor;
struct wlr_xwayland_server_options {
bool lazy;
bool enable_wm;
bool no_touch_pointer_emulation;
bool force_xrandr_emulation;
int terminate_delay; // in seconds, 0 to terminate immediately
};
struct wlr_xwayland_server {
pid_t pid;
struct wl_client *client;
struct wl_event_source *pipe_source;
int wm_fd[2], wl_fd[2];
time_t server_start;
/* Anything above display is reset on Xwayland restart, rest is conserved */
int display;
char display_name[16];
int x_fd[2];
struct wl_event_source *x_fd_read_event[2];
struct wlr_xwayland_server_options options;
struct wl_display *wl_display;
struct {
struct wl_signal ready;
struct wl_signal destroy;
} events;
struct wl_listener client_destroy;
struct wl_listener display_destroy;
void *data;
};
struct wlr_xwayland_server_ready_event {
struct wlr_xwayland_server *server;
int wm_fd;
};
struct wlr_xwayland {
struct wlr_xwayland_server *server;
struct wlr_xwm *xwm;
struct wlr_xwayland_cursor *cursor;
const char *display_name;
struct wl_display *wl_display;
struct wlr_compositor *compositor;
struct wlr_seat *seat;
struct {
struct wl_signal ready;
struct wl_signal new_surface;
struct wl_signal remove_startup_info;
} events;
/**
* Add a custom event handler to xwayland. Return 1 if the event was
* handled or 0 to use the default wlr-xwayland handler. wlr-xwayland will
* free the event.
*/
int (*user_event_handler)(struct wlr_xwm *xwm, xcb_generic_event_t *event);
struct wl_listener server_ready;
struct wl_listener server_destroy;
struct wl_listener seat_destroy;
void *data;
};
enum wlr_xwayland_surface_decorations {
WLR_XWAYLAND_SURFACE_DECORATIONS_ALL = 0,
WLR_XWAYLAND_SURFACE_DECORATIONS_NO_BORDER = 1,
WLR_XWAYLAND_SURFACE_DECORATIONS_NO_TITLE = 2,
};
/**
* This represents the input focus described as follows:
*
* https://www.x.org/releases/X11R7.6/doc/xorg-docs/specs/ICCCM/icccm.html#input_focus
*/
enum wlr_xwayland_icccm_input_model {
WLR_ICCCM_INPUT_MODEL_NONE = 0,
WLR_ICCCM_INPUT_MODEL_PASSIVE = 1,
WLR_ICCCM_INPUT_MODEL_LOCAL = 2,
WLR_ICCCM_INPUT_MODEL_GLOBAL = 3,
};
/**
* An Xwayland user interface component. It has an absolute position in
* layout-local coordinates.
*
* When a surface is ready to be displayed, the `map` event is emitted. When a
* surface should no longer be displayed, the `unmap` event is emitted. The
* `unmap` event is guaranteed to be emitted before the `destroy` event if the
* view is destroyed when mapped.
*/
struct wlr_xwayland_surface {
xcb_window_t window_id;
struct wlr_xwm *xwm;
uint32_t surface_id;
struct wl_list link;
struct wl_list stack_link;
struct wl_list unpaired_link;
struct wlr_surface *surface;
int16_t x, y;
uint16_t width, height;
uint16_t saved_width, saved_height;
bool override_redirect;
bool mapped;
char *title;
char *class;
char *instance;
char *role;
char *startup_id;
pid_t pid;
bool has_utf8_title;
struct wl_list children; // wlr_xwayland_surface::parent_link
struct wlr_xwayland_surface *parent;
struct wl_list parent_link; // wlr_xwayland_surface::children
xcb_atom_t *window_type;
size_t window_type_len;
xcb_atom_t *protocols;
size_t protocols_len;
uint32_t decorations;
xcb_icccm_wm_hints_t *hints;
xcb_size_hints_t *size_hints;
bool pinging;
struct wl_event_source *ping_timer;
// _NET_WM_STATE
bool modal;
bool fullscreen;
bool maximized_vert, maximized_horz;
bool minimized;
bool has_alpha;
struct {
struct wl_signal destroy;
struct wl_signal request_configure;
struct wl_signal request_move;
struct wl_signal request_resize;
struct wl_signal request_minimize;
struct wl_signal request_maximize;
struct wl_signal request_fullscreen;
struct wl_signal request_activate;
struct wl_signal map;
struct wl_signal unmap;
struct wl_signal set_title;
struct wl_signal set_class;
struct wl_signal set_role;
struct wl_signal set_parent;
struct wl_signal set_pid;
struct wl_signal set_startup_id;
struct wl_signal set_window_type;
struct wl_signal set_hints;
struct wl_signal set_decorations;
struct wl_signal set_override_redirect;
struct wl_signal set_geometry;
struct wl_signal ping_timeout;
} events;
struct wl_listener surface_destroy;
void *data;
};
struct wlr_xwayland_surface_configure_event {
struct wlr_xwayland_surface *surface;
int16_t x, y;
uint16_t width, height;
uint16_t mask; // xcb_config_window_t
};
// TODO: maybe add a seat to these
struct wlr_xwayland_move_event {
struct wlr_xwayland_surface *surface;
};
struct wlr_xwayland_remove_startup_info_event {
const char *id;
xcb_window_t window;
};
struct wlr_xwayland_resize_event {
struct wlr_xwayland_surface *surface;
uint32_t edges;
};
struct wlr_xwayland_minimize_event {
struct wlr_xwayland_surface *surface;
bool minimize;
};
struct wlr_xwayland_server *wlr_xwayland_server_create(
struct wl_display *display, struct wlr_xwayland_server_options *options);
void wlr_xwayland_server_destroy(struct wlr_xwayland_server *server);
/** Create an Xwayland server and XWM.
*
* The server supports a lazy mode in which Xwayland is only started when a
* client tries to connect.
*/
struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
struct wlr_compositor *compositor, bool lazy);
void wlr_xwayland_destroy(struct wlr_xwayland *wlr_xwayland);
void wlr_xwayland_set_cursor(struct wlr_xwayland *wlr_xwayland,
uint8_t *pixels, uint32_t stride, uint32_t width, uint32_t height,
int32_t hotspot_x, int32_t hotspot_y);
void wlr_xwayland_surface_activate(struct wlr_xwayland_surface *surface,
bool activated);
/**
* Restack surface relative to sibling.
* If sibling is NULL, then the surface is moved to the top or the bottom
* of the stack (depending on the mode).
*/
void wlr_xwayland_surface_restack(struct wlr_xwayland_surface *surface,
struct wlr_xwayland_surface *sibling, enum xcb_stack_mode_t mode);
void wlr_xwayland_surface_configure(struct wlr_xwayland_surface *surface,
int16_t x, int16_t y, uint16_t width, uint16_t height);
void wlr_xwayland_surface_close(struct wlr_xwayland_surface *surface);
void wlr_xwayland_surface_set_minimized(struct wlr_xwayland_surface *surface,
bool minimized);
void wlr_xwayland_surface_set_maximized(struct wlr_xwayland_surface *surface,
bool maximized);
void wlr_xwayland_surface_set_fullscreen(struct wlr_xwayland_surface *surface,
bool fullscreen);
void wlr_xwayland_set_seat(struct wlr_xwayland *xwayland,
struct wlr_seat *seat);
/**
* Returns true if the surface has the xwayland surface role.
*/
bool wlr_surface_is_xwayland_surface(struct wlr_surface *surface);
/**
* Get a struct wlr_xwayland_surface from a struct wlr_surface.
* Asserts that the surface has the xwayland surface role.
* May return NULL even if the surface has the xwayland surface role if the
* corresponding xwayland surface has been destroyed.
*/
struct wlr_xwayland_surface *wlr_xwayland_surface_from_wlr_surface(
struct wlr_surface *surface);
void wlr_xwayland_surface_ping(struct wlr_xwayland_surface *surface);
/** Metric to guess if an OR window should "receive" focus
*
* In the pure X setups, window managers usually straight up ignore override
* redirect windows, and never touch them. (we have to handle them for mapping)
*
* When such a window wants to receive keyboard input (e.g. rofi/dzen) it will
* use mechanics we don't support (sniffing/grabbing input).
* [Sadly this is unrelated to xwayland-keyboard-grab]
*
* To still support these windows, while keeping general OR semantics as is, we
* need to hand a subset of windows focus.
* The dirty truth is, we need to hand focus to any Xwayland window, though
* pretending this window has focus makes it easier to handle unmap.
*
* This function provides a handy metric based on the window type to guess if
* the OR window wants focus.
* It's probably not perfect, nor exactly intended but works in practice.
*
* Returns: true if the window should receive focus
* false if it should be ignored
*/
bool wlr_xwayland_or_surface_wants_focus(
const struct wlr_xwayland_surface *xsurface);
enum wlr_xwayland_icccm_input_model wlr_xwayland_icccm_input_model(
const struct wlr_xwayland_surface *xsurface);
#endif
#include <wlr/xwayland/server.h>
#include <wlr/xwayland/xwayland.h>

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include/wlr/xwayland/server.h Normal file
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/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_XWAYLAND_SERVER_H
#define WLR_XWAYLAND_SERVER_H
#include <stdbool.h>
#include <sys/types.h>
#include <time.h>
#include <wayland-server-core.h>
struct wlr_xwayland_server_options {
bool lazy;
bool enable_wm;
bool no_touch_pointer_emulation;
bool force_xrandr_emulation;
int terminate_delay; // in seconds, 0 to terminate immediately
};
struct wlr_xwayland_server {
pid_t pid;
struct wl_client *client;
struct wl_event_source *pipe_source;
int wm_fd[2], wl_fd[2];
time_t server_start;
/* Anything above display is reset on Xwayland restart, rest is conserved */
int display;
char display_name[16];
int x_fd[2];
struct wl_event_source *x_fd_read_event[2];
struct wlr_xwayland_server_options options;
struct wl_display *wl_display;
struct {
struct wl_signal ready;
struct wl_signal destroy;
} events;
struct wl_listener client_destroy;
struct wl_listener display_destroy;
void *data;
};
struct wlr_xwayland_server_ready_event {
struct wlr_xwayland_server *server;
int wm_fd;
};
struct wlr_xwayland_server *wlr_xwayland_server_create(
struct wl_display *display, struct wlr_xwayland_server_options *options);
void wlr_xwayland_server_destroy(struct wlr_xwayland_server *server);
#endif

271
include/wlr/xwayland/xwayland.h Normal file
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/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_XWAYLAND_XWAYLAND_H
#define WLR_XWAYLAND_XWAYLAND_H
#include <stdbool.h>
#include <wayland-server-core.h>
#include <xcb/xcb.h>
#include <xcb/xcb_icccm.h>
struct wlr_xwm;
struct wlr_data_source;
struct wlr_drag;
struct wlr_xwayland {
struct wlr_xwayland_server *server;
struct wlr_xwm *xwm;
struct wlr_xwayland_cursor *cursor;
const char *display_name;
struct wl_display *wl_display;
struct wlr_compositor *compositor;
struct wlr_seat *seat;
struct {
struct wl_signal ready;
struct wl_signal new_surface;
struct wl_signal remove_startup_info;
} events;
/**
* Add a custom event handler to xwayland. Return 1 if the event was
* handled or 0 to use the default wlr-xwayland handler. wlr-xwayland will
* free the event.
*/
int (*user_event_handler)(struct wlr_xwm *xwm, xcb_generic_event_t *event);
struct wl_listener server_ready;
struct wl_listener server_destroy;
struct wl_listener seat_destroy;
void *data;
};
enum wlr_xwayland_surface_decorations {
WLR_XWAYLAND_SURFACE_DECORATIONS_ALL = 0,
WLR_XWAYLAND_SURFACE_DECORATIONS_NO_BORDER = 1,
WLR_XWAYLAND_SURFACE_DECORATIONS_NO_TITLE = 2,
};
/**
* This represents the input focus described as follows:
*
* https://www.x.org/releases/X11R7.6/doc/xorg-docs/specs/ICCCM/icccm.html#input_focus
*/
enum wlr_xwayland_icccm_input_model {
WLR_ICCCM_INPUT_MODEL_NONE = 0,
WLR_ICCCM_INPUT_MODEL_PASSIVE = 1,
WLR_ICCCM_INPUT_MODEL_LOCAL = 2,
WLR_ICCCM_INPUT_MODEL_GLOBAL = 3,
};
/**
* An Xwayland user interface component. It has an absolute position in
* layout-local coordinates.
*
* When a surface is ready to be displayed, the `map` event is emitted. When a
* surface should no longer be displayed, the `unmap` event is emitted. The
* `unmap` event is guaranteed to be emitted before the `destroy` event if the
* view is destroyed when mapped.
*/
struct wlr_xwayland_surface {
xcb_window_t window_id;
struct wlr_xwm *xwm;
uint32_t surface_id;
struct wl_list link;
struct wl_list stack_link;
struct wl_list unpaired_link;
struct wlr_surface *surface;
int16_t x, y;
uint16_t width, height;
uint16_t saved_width, saved_height;
bool override_redirect;
bool mapped;
char *title;
char *class;
char *instance;
char *role;
char *startup_id;
pid_t pid;
bool has_utf8_title;
struct wl_list children; // wlr_xwayland_surface::parent_link
struct wlr_xwayland_surface *parent;
struct wl_list parent_link; // wlr_xwayland_surface::children
xcb_atom_t *window_type;
size_t window_type_len;
xcb_atom_t *protocols;
size_t protocols_len;
uint32_t decorations;
xcb_icccm_wm_hints_t *hints;
xcb_size_hints_t *size_hints;
bool pinging;
struct wl_event_source *ping_timer;
// _NET_WM_STATE
bool modal;
bool fullscreen;
bool maximized_vert, maximized_horz;
bool minimized;
bool has_alpha;
struct {
struct wl_signal destroy;
struct wl_signal request_configure;
struct wl_signal request_move;
struct wl_signal request_resize;
struct wl_signal request_minimize;
struct wl_signal request_maximize;
struct wl_signal request_fullscreen;
struct wl_signal request_activate;
struct wl_signal map;
struct wl_signal unmap;
struct wl_signal set_title;
struct wl_signal set_class;
struct wl_signal set_role;
struct wl_signal set_parent;
struct wl_signal set_pid;
struct wl_signal set_startup_id;
struct wl_signal set_window_type;
struct wl_signal set_hints;
struct wl_signal set_decorations;
struct wl_signal set_override_redirect;
struct wl_signal set_geometry;
struct wl_signal ping_timeout;
} events;
struct wl_listener surface_destroy;
void *data;
};
struct wlr_xwayland_surface_configure_event {
struct wlr_xwayland_surface *surface;
int16_t x, y;
uint16_t width, height;
uint16_t mask; // xcb_config_window_t
};
// TODO: maybe add a seat to these
struct wlr_xwayland_move_event {
struct wlr_xwayland_surface *surface;
};
struct wlr_xwayland_remove_startup_info_event {
const char *id;
xcb_window_t window;
};
struct wlr_xwayland_resize_event {
struct wlr_xwayland_surface *surface;
uint32_t edges;
};
struct wlr_xwayland_minimize_event {
struct wlr_xwayland_surface *surface;
bool minimize;
};
/** Create an Xwayland server and XWM.
*
* The server supports a lazy mode in which Xwayland is only started when a
* client tries to connect.
*/
struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
struct wlr_compositor *compositor, bool lazy);
void wlr_xwayland_destroy(struct wlr_xwayland *wlr_xwayland);
void wlr_xwayland_set_cursor(struct wlr_xwayland *wlr_xwayland,
uint8_t *pixels, uint32_t stride, uint32_t width, uint32_t height,
int32_t hotspot_x, int32_t hotspot_y);
void wlr_xwayland_surface_activate(struct wlr_xwayland_surface *surface,
bool activated);
/**
* Restack surface relative to sibling.
* If sibling is NULL, then the surface is moved to the top or the bottom
* of the stack (depending on the mode).
*/
void wlr_xwayland_surface_restack(struct wlr_xwayland_surface *surface,
struct wlr_xwayland_surface *sibling, enum xcb_stack_mode_t mode);
void wlr_xwayland_surface_configure(struct wlr_xwayland_surface *surface,
int16_t x, int16_t y, uint16_t width, uint16_t height);
void wlr_xwayland_surface_close(struct wlr_xwayland_surface *surface);
void wlr_xwayland_surface_set_minimized(struct wlr_xwayland_surface *surface,
bool minimized);
void wlr_xwayland_surface_set_maximized(struct wlr_xwayland_surface *surface,
bool maximized);
void wlr_xwayland_surface_set_fullscreen(struct wlr_xwayland_surface *surface,
bool fullscreen);
void wlr_xwayland_set_seat(struct wlr_xwayland *xwayland,
struct wlr_seat *seat);
/**
* Returns true if the surface has the xwayland surface role.
*/
bool wlr_surface_is_xwayland_surface(struct wlr_surface *surface);
/**
* Get a struct wlr_xwayland_surface from a struct wlr_surface.
* Asserts that the surface has the xwayland surface role.
* May return NULL even if the surface has the xwayland surface role if the
* corresponding xwayland surface has been destroyed.
*/
struct wlr_xwayland_surface *wlr_xwayland_surface_from_wlr_surface(
struct wlr_surface *surface);
void wlr_xwayland_surface_ping(struct wlr_xwayland_surface *surface);
/** Metric to guess if an OR window should "receive" focus
*
* In the pure X setups, window managers usually straight up ignore override
* redirect windows, and never touch them. (we have to handle them for mapping)
*
* When such a window wants to receive keyboard input (e.g. rofi/dzen) it will
* use mechanics we don't support (sniffing/grabbing input).
* [Sadly this is unrelated to xwayland-keyboard-grab]
*
* To still support these windows, while keeping general OR semantics as is, we
* need to hand a subset of windows focus.
* The dirty truth is, we need to hand focus to any Xwayland window, though
* pretending this window has focus makes it easier to handle unmap.
*
* This function provides a handy metric based on the window type to guess if
* the OR window wants focus.
* It's probably not perfect, nor exactly intended but works in practice.
*
* Returns: true if the window should receive focus
* false if it should be ignored
*/
bool wlr_xwayland_or_surface_wants_focus(
const struct wlr_xwayland_surface *xsurface);
enum wlr_xwayland_icccm_input_model wlr_xwayland_icccm_input_model(
const struct wlr_xwayland_surface *xsurface);
#endif

4
xwayland/xwayland.c
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@ -10,9 +10,9 @@
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/util/log.h>
#include <wlr/xwayland.h>
#include <wlr/xwayland/xwayland.h>
#include "sockets.h"
#include "xwayland/xwm.h"