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256 lines
6.8 KiB
256 lines
6.8 KiB
/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_XWAYLAND_H
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#define WLR_XWAYLAND_H
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#include <stdbool.h>
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#include <time.h>
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#include <wlr/config.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_seat.h>
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#include <xcb/xcb.h>
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struct wlr_xwm;
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struct wlr_xwayland_cursor;
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struct wlr_xwayland {
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pid_t pid;
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struct wl_client *client;
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struct wl_event_source *sigusr1_source;
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struct wl_listener client_destroy;
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struct wlr_xwm *xwm;
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struct wlr_xwayland_cursor *cursor;
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int wm_fd[2], wl_fd[2];
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time_t server_start;
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/* Anything above display is reset on Xwayland restart, rest is conserved */
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int display;
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int x_fd[2];
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struct wl_event_source *x_fd_read_event[2];
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struct wl_listener display_destroy;
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bool lazy;
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struct wl_display *wl_display;
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struct wlr_compositor *compositor;
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struct wlr_seat *seat;
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struct wl_listener seat_destroy;
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struct {
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struct wl_signal ready;
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struct wl_signal new_surface;
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} events;
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/**
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* Add a custom event handler to xwayland. Return 1 if the event was
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* handled or 0 to use the default wlr-xwayland handler. wlr-xwayland will
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* free the event.
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*/
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int (*user_event_handler)(struct wlr_xwm *xwm, xcb_generic_event_t *event);
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void *data;
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};
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enum wlr_xwayland_surface_decorations {
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WLR_XWAYLAND_SURFACE_DECORATIONS_ALL = 0,
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WLR_XWAYLAND_SURFACE_DECORATIONS_NO_BORDER = 1,
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WLR_XWAYLAND_SURFACE_DECORATIONS_NO_TITLE = 2,
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};
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struct wlr_xwayland_surface_hints {
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uint32_t flags;
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uint32_t input;
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int32_t initial_state;
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xcb_pixmap_t icon_pixmap;
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xcb_window_t icon_window;
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int32_t icon_x, icon_y;
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xcb_pixmap_t icon_mask;
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xcb_window_t window_group;
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};
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struct wlr_xwayland_surface_size_hints {
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uint32_t flags;
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int32_t x, y;
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int32_t width, height;
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int32_t min_width, min_height;
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int32_t max_width, max_height;
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int32_t width_inc, height_inc;
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int32_t base_width, base_height;
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int32_t min_aspect_num, min_aspect_den;
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int32_t max_aspect_num, max_aspect_den;
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uint32_t win_gravity;
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};
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/**
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* An Xwayland user interface component. It has an absolute position in
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* layout-local coordinates.
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*
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* When a surface is ready to be displayed, the `map` event is emitted. When a
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* surface should no longer be displayed, the `unmap` event is emitted. The
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* `unmap` event is guaranteed to be emitted before the `destroy` event if the
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* view is destroyed when mapped.
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*/
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struct wlr_xwayland_surface {
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xcb_window_t window_id;
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struct wlr_xwm *xwm;
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uint32_t surface_id;
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struct wl_list link;
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struct wl_list unpaired_link;
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struct wlr_surface *surface;
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int16_t x, y;
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uint16_t width, height;
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uint16_t saved_width, saved_height;
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bool override_redirect;
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bool mapped;
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char *title;
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char *class;
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char *instance;
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pid_t pid;
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bool has_utf8_title;
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struct wl_list children; // wlr_xwayland_surface::parent_link
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struct wlr_xwayland_surface *parent;
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struct wl_list parent_link; // wlr_xwayland_surface::children
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xcb_atom_t *window_type;
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size_t window_type_len;
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xcb_atom_t *protocols;
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size_t protocols_len;
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uint32_t decorations;
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struct wlr_xwayland_surface_hints *hints;
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uint32_t hints_urgency;
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struct wlr_xwayland_surface_size_hints *size_hints;
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bool pinging;
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struct wl_event_source *ping_timer;
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// _NET_WM_STATE
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bool modal;
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bool fullscreen;
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bool maximized_vert, maximized_horz;
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bool has_alpha;
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struct {
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struct wl_signal destroy;
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struct wl_signal request_configure;
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struct wl_signal request_move;
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struct wl_signal request_resize;
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struct wl_signal request_maximize;
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struct wl_signal request_fullscreen;
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struct wl_signal request_activate;
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struct wl_signal map;
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struct wl_signal unmap;
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struct wl_signal set_title;
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struct wl_signal set_class;
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struct wl_signal set_parent;
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struct wl_signal set_pid;
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struct wl_signal set_window_type;
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struct wl_signal set_hints;
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struct wl_signal set_override_redirect;
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struct wl_signal ping_timeout;
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} events;
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struct wl_listener surface_destroy;
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void *data;
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};
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struct wlr_xwayland_surface_configure_event {
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struct wlr_xwayland_surface *surface;
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int16_t x, y;
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uint16_t width, height;
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};
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// TODO: maybe add a seat to these
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struct wlr_xwayland_move_event {
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struct wlr_xwayland_surface *surface;
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};
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struct wlr_xwayland_resize_event {
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struct wlr_xwayland_surface *surface;
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uint32_t edges;
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};
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/** Create an Xwayland server.
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*
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* The server supports a lazy mode in which Xwayland is only started when a
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* client tries to connect.
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*
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* Note: wlr_xwayland will setup a global SIGUSR1 handler on the compositor
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* process.
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*/
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struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
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struct wlr_compositor *compositor, bool lazy);
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void wlr_xwayland_destroy(struct wlr_xwayland *wlr_xwayland);
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void wlr_xwayland_set_cursor(struct wlr_xwayland *wlr_xwayland,
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uint8_t *pixels, uint32_t stride, uint32_t width, uint32_t height,
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int32_t hotspot_x, int32_t hotspot_y);
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void wlr_xwayland_surface_activate(struct wlr_xwayland_surface *surface,
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bool activated);
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void wlr_xwayland_surface_configure(struct wlr_xwayland_surface *surface,
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int16_t x, int16_t y, uint16_t width, uint16_t height);
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void wlr_xwayland_surface_close(struct wlr_xwayland_surface *surface);
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void wlr_xwayland_surface_set_maximized(struct wlr_xwayland_surface *surface,
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bool maximized);
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void wlr_xwayland_surface_set_fullscreen(struct wlr_xwayland_surface *surface,
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bool fullscreen);
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void wlr_xwayland_set_seat(struct wlr_xwayland *xwayland,
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struct wlr_seat *seat);
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bool wlr_surface_is_xwayland_surface(struct wlr_surface *surface);
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struct wlr_xwayland_surface *wlr_xwayland_surface_from_wlr_surface(
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struct wlr_surface *surface);
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void wlr_xwayland_surface_ping(struct wlr_xwayland_surface *surface);
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/** Metric to guess if an OR window should "receive" focus
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*
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* In the pure X setups, window managers usually straight up ignore override
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* redirect windows, and never touch them. (we have to handle them for mapping)
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*
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* When such a window wants to receive keyboard input (e.g. rofi/dzen) it will
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* use mechanics we don't support (sniffing/grabbing input).
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* [Sadly this is unrelated to xwayland-keyboard-grab]
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*
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* To still support these windows, while keeping general OR semantics as is, we
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* need to hand a subset of windows focus.
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* The dirty truth is, we need to hand focus to any Xwayland window, though
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* pretending this window has focus makes it easier to handle unmap.
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*
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* This function provides a handy metric based on the window type to guess if
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* the OR window wants focus.
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* It's probably not perfect, nor exactly intended but works in practice.
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*
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* Returns: true if the window should receive focus
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* false if it should be ignored
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*/
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bool wlr_xwayland_or_surface_wants_focus(
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const struct wlr_xwayland_surface *surface);
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#endif
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