/* * See LICENSE file for copyright and license details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef XWAYLAND #include #include #include #endif #include "util.h" /* macros */ #define MAX(A, B) ((A) > (B) ? (A) : (B)) #define MIN(A, B) ((A) < (B) ? (A) : (B)) #define CLEANMASK(mask) (mask & ~WLR_MODIFIER_CAPS) #define VISIBLEON(C, M) ((M) && (C)->mon == (M) && ((C)->tags & (M)->tagset[(M)->seltags])) #define LENGTH(X) (sizeof X / sizeof X[0]) #define END(A) ((A) + LENGTH(A)) #define TAGMASK ((1 << LENGTH(tags)) - 1) #define LISTEN(E, L, H) wl_signal_add((E), ((L)->notify = (H), (L))) #define IDLE_NOTIFY_ACTIVITY wlr_idle_notify_activity(idle, seat), wlr_idle_notifier_v1_notify_activity(idle_notifier, seat) /* enums */ enum { CurNormal, CurPressed, CurMove, CurResize }; /* cursor */ enum { XDGShell, LayerShell, X11Managed, X11Unmanaged }; /* client types */ enum { LyrBg, LyrBottom, LyrTop, LyrOverlay, LyrTile, LyrFloat, LyrFS, LyrDragIcon, LyrBlock, NUM_LAYERS }; /* scene layers */ #ifdef XWAYLAND enum { NetWMWindowTypeDialog, NetWMWindowTypeSplash, NetWMWindowTypeToolbar, NetWMWindowTypeUtility, NetLast }; /* EWMH atoms */ #endif typedef union { int i; unsigned int ui; float f; const void *v; } Arg; typedef struct { unsigned int mod; unsigned int button; void (*func)(const Arg *); const Arg arg; } Button; typedef struct Monitor Monitor; typedef struct Client Client; struct Client { /* Must keep these three elements in this order */ unsigned int type; /* XDGShell or X11* */ struct wlr_box geom; /* layout-relative, includes border */ Monitor *mon; struct wlr_scene_tree *scene; struct wlr_scene_rect *border[4]; /* top, bottom, left, right */ struct wlr_scene_tree *scene_surface; struct wl_list link; struct wl_list flink; union { struct wlr_xdg_surface *xdg; struct wlr_xwayland_surface *xwayland; } surface; struct wl_listener commit; struct wl_listener map; struct wl_listener maximize; struct wl_listener unmap; struct wl_listener destroy; struct wl_listener set_title; struct wl_listener fullscreen; struct wlr_box prev; /* layout-relative, includes border */ #ifdef XWAYLAND struct wl_listener activate; struct wl_listener configure; struct wl_listener set_hints; #endif unsigned int bw; unsigned int tags; int isfloating, isurgent, isfullscreen, isterm, noswallow; uint32_t resize; /* configure serial of a pending resize */ pid_t pid; Client *swallowing, *swallowedby; }; typedef struct { uint32_t mod; xkb_keysym_t keysym; void (*func)(const Arg *); const Arg arg; } Key; typedef struct { struct wl_list link; struct wlr_keyboard *wlr_keyboard; int nsyms; const xkb_keysym_t *keysyms; /* invalid if nsyms == 0 */ uint32_t mods; /* invalid if nsyms == 0 */ struct wl_event_source *key_repeat_source; struct wl_listener modifiers; struct wl_listener key; struct wl_listener destroy; } Keyboard; typedef struct { /* Must keep these three elements in this order */ unsigned int type; /* LayerShell */ struct wlr_box geom; Monitor *mon; struct wlr_scene_tree *scene; struct wlr_scene_tree *popups; struct wlr_scene_layer_surface_v1 *scene_layer; struct wl_list link; int mapped; struct wlr_layer_surface_v1 *layer_surface; struct wl_listener destroy; struct wl_listener map; struct wl_listener unmap; struct wl_listener surface_commit; } LayerSurface; typedef struct { const char *symbol; void (*arrange)(Monitor *); } Layout; struct Monitor { struct wl_list link; struct wlr_output *wlr_output; struct wlr_scene_output *scene_output; struct wlr_scene_rect *fullscreen_bg; /* See createmon() for info */ struct wl_listener frame; struct wl_listener destroy; struct wl_listener destroy_lock_surface; struct wlr_session_lock_surface_v1 *lock_surface; struct wlr_box m; /* monitor area, layout-relative */ struct wlr_box w; /* window area, layout-relative */ struct wl_list layers[4]; /* LayerSurface::link */ const Layout *lt[2]; unsigned int seltags; unsigned int sellt; unsigned int tagset[2]; double mfact; int nmaster; }; typedef struct { const char *name; float mfact; int nmaster; float scale; const Layout *lt; enum wl_output_transform rr; int x, y; } MonitorRule; typedef struct { const char *id; const char *title; unsigned int tags; int isfloating; int isterm; int noswallow; int monitor; } Rule; typedef struct { struct wlr_scene_tree *scene; struct wlr_session_lock_v1 *lock; struct wl_listener new_surface; struct wl_listener unlock; struct wl_listener destroy; } SessionLock; /* function declarations */ static void applybounds(Client *c, struct wlr_box *bbox); static void applyrules(Client *c); static void arrange(Monitor *m); static void arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, int exclusive); static void arrangelayers(Monitor *m); static void axisnotify(struct wl_listener *listener, void *data); static void buttonpress(struct wl_listener *listener, void *data); static void chvt(const Arg *arg); static void checkidleinhibitor(struct wlr_surface *exclude); static void cleanup(void); static void cleanupkeyboard(struct wl_listener *listener, void *data); static void cleanupmon(struct wl_listener *listener, void *data); static void closemon(Monitor *m); static void commitlayersurfacenotify(struct wl_listener *listener, void *data); static void commitnotify(struct wl_listener *listener, void *data); static void createdecoration(struct wl_listener *listener, void *data); static void createidleinhibitor(struct wl_listener *listener, void *data); static void createkeyboard(struct wlr_keyboard *keyboard); static void createlayersurface(struct wl_listener *listener, void *data); static void createlocksurface(struct wl_listener *listener, void *data); static void createmon(struct wl_listener *listener, void *data); static void createnotify(struct wl_listener *listener, void *data); static void createpointer(struct wlr_pointer *pointer); static void cursorframe(struct wl_listener *listener, void *data); static void destroydragicon(struct wl_listener *listener, void *data); static void destroyidleinhibitor(struct wl_listener *listener, void *data); static void destroylayersurfacenotify(struct wl_listener *listener, void *data); static void destroylock(SessionLock *lock, int unlocked); static void destroylocksurface(struct wl_listener *listener, void *data); static void destroynotify(struct wl_listener *listener, void *data); static void destroysessionlock(struct wl_listener *listener, void *data); static void destroysessionmgr(struct wl_listener *listener, void *data); static Monitor *dirtomon(enum wlr_direction dir); static void focusclient(Client *c, int lift); static void focusmon(const Arg *arg); static void focusstack(const Arg *arg); static Client *focustop(Monitor *m); static void fullscreennotify(struct wl_listener *listener, void *data); static void incnmaster(const Arg *arg); static void inputdevice(struct wl_listener *listener, void *data); static int keybinding(uint32_t mods, xkb_keysym_t sym); static void keypress(struct wl_listener *listener, void *data); static void keypressmod(struct wl_listener *listener, void *data); static int keyrepeat(void *data); static void killclient(const Arg *arg); static void locksession(struct wl_listener *listener, void *data); static void maplayersurfacenotify(struct wl_listener *listener, void *data); static void mapnotify(struct wl_listener *listener, void *data); static void maximizenotify(struct wl_listener *listener, void *data); static void monocle(Monitor *m); static void motionabsolute(struct wl_listener *listener, void *data); static void motionnotify(uint32_t time); static void motionrelative(struct wl_listener *listener, void *data); static void moveresize(const Arg *arg); static void outputmgrapply(struct wl_listener *listener, void *data); static void outputmgrapplyortest(struct wlr_output_configuration_v1 *config, int test); static void outputmgrtest(struct wl_listener *listener, void *data); static void pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy, uint32_t time); static void printstatus(void); static void quit(const Arg *arg); static void quitsignal(int signo); static void rendermon(struct wl_listener *listener, void *data); static void requeststartdrag(struct wl_listener *listener, void *data); static void resize(Client *c, struct wlr_box geo, int interact); static void run(char *startup_cmd); static void setcursor(struct wl_listener *listener, void *data); static void setfloating(Client *c, int floating); static void setfullscreen(Client *c, int fullscreen); static void setlayout(const Arg *arg); static void setmfact(const Arg *arg); static void setmon(Client *c, Monitor *m, unsigned int newtags); static void setpsel(struct wl_listener *listener, void *data); static void setsel(struct wl_listener *listener, void *data); static void setup(void); static void spawn(const Arg *arg); static void startdrag(struct wl_listener *listener, void *data); static void tag(const Arg *arg); static void tagmon(const Arg *arg); static void tile(Monitor *m); static void togglefloating(const Arg *arg); static void togglefullscreen(const Arg *arg); static void toggletag(const Arg *arg); static void toggleview(const Arg *arg); static void unlocksession(struct wl_listener *listener, void *data); static void unmaplayersurfacenotify(struct wl_listener *listener, void *data); static void unmapnotify(struct wl_listener *listener, void *data); static void updatemons(struct wl_listener *listener, void *data); static void updatetitle(struct wl_listener *listener, void *data); static void urgent(struct wl_listener *listener, void *data); static void view(const Arg *arg); static void virtualkeyboard(struct wl_listener *listener, void *data); static Monitor *xytomon(double x, double y); static struct wlr_scene_node *xytonode(double x, double y, struct wlr_surface **psurface, Client **pc, LayerSurface **pl, double *nx, double *ny); static void zoom(const Arg *arg); static pid_t getparentprocess(pid_t p); static int isdescprocess(pid_t p, pid_t c); static Client *termforwin(Client *w); static void swallow(Client *c, Client *w); /* variables */ static const char broken[] = "broken"; static const char *cursor_image = "left_ptr"; static pid_t child_pid = -1; static int locked; static void *exclusive_focus; static struct wl_display *dpy; static struct wlr_backend *backend; static struct wlr_scene *scene; static struct wlr_scene_tree *layers[NUM_LAYERS]; static struct wlr_renderer *drw; static struct wlr_allocator *alloc; static struct wlr_compositor *compositor; static struct wlr_xdg_shell *xdg_shell; static struct wlr_xdg_activation_v1 *activation; static struct wlr_xdg_decoration_manager_v1 *xdg_decoration_mgr; static struct wl_list clients; /* tiling order */ static struct wl_list fstack; /* focus order */ static struct wlr_idle *idle; static struct wlr_idle_notifier_v1 *idle_notifier; static struct wlr_idle_inhibit_manager_v1 *idle_inhibit_mgr; static struct wlr_input_inhibit_manager *input_inhibit_mgr; static struct wlr_layer_shell_v1 *layer_shell; static struct wlr_output_manager_v1 *output_mgr; static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr; static struct wlr_cursor *cursor; static struct wlr_xcursor_manager *cursor_mgr; static struct wlr_session_lock_manager_v1 *session_lock_mgr; static struct wlr_scene_rect *locked_bg; static struct wlr_session_lock_v1 *cur_lock; static struct wlr_seat *seat; static struct wl_list keyboards; static unsigned int cursor_mode; static Client *grabc; static int grabcx, grabcy; /* client-relative */ static struct wlr_output_layout *output_layout; static struct wlr_box sgeom; static struct wl_list mons; static Monitor *selmon; /* global event handlers */ static struct wl_listener cursor_axis = {.notify = axisnotify}; static struct wl_listener cursor_button = {.notify = buttonpress}; static struct wl_listener cursor_frame = {.notify = cursorframe}; static struct wl_listener cursor_motion = {.notify = motionrelative}; static struct wl_listener cursor_motion_absolute = {.notify = motionabsolute}; static struct wl_listener drag_icon_destroy = {.notify = destroydragicon}; static struct wl_listener idle_inhibitor_create = {.notify = createidleinhibitor}; static struct wl_listener idle_inhibitor_destroy = {.notify = destroyidleinhibitor}; static struct wl_listener layout_change = {.notify = updatemons}; static struct wl_listener new_input = {.notify = inputdevice}; static struct wl_listener new_virtual_keyboard = {.notify = virtualkeyboard}; static struct wl_listener new_output = {.notify = createmon}; static struct wl_listener new_xdg_surface = {.notify = createnotify}; static struct wl_listener new_xdg_decoration = {.notify = createdecoration}; static struct wl_listener new_layer_shell_surface = {.notify = createlayersurface}; static struct wl_listener output_mgr_apply = {.notify = outputmgrapply}; static struct wl_listener output_mgr_test = {.notify = outputmgrtest}; static struct wl_listener request_activate = {.notify = urgent}; static struct wl_listener request_cursor = {.notify = setcursor}; static struct wl_listener request_set_psel = {.notify = setpsel}; static struct wl_listener request_set_sel = {.notify = setsel}; static struct wl_listener request_start_drag = {.notify = requeststartdrag}; static struct wl_listener start_drag = {.notify = startdrag}; static struct wl_listener session_lock_create_lock = {.notify = locksession}; static struct wl_listener session_lock_mgr_destroy = {.notify = destroysessionmgr}; #ifdef XWAYLAND static void activatex11(struct wl_listener *listener, void *data); static void configurex11(struct wl_listener *listener, void *data); static void createnotifyx11(struct wl_listener *listener, void *data); static Atom getatom(xcb_connection_t *xc, const char *name); static void sethints(struct wl_listener *listener, void *data); static void sigchld(int unused); static void xwaylandready(struct wl_listener *listener, void *data); static struct wl_listener new_xwayland_surface = {.notify = createnotifyx11}; static struct wl_listener xwayland_ready = {.notify = xwaylandready}; static struct wlr_xwayland *xwayland; static Atom netatom[NetLast]; #endif /* configuration, allows nested code to access above variables */ #include "config.h" /* attempt to encapsulate suck into one file */ #include "client.h" /* compile-time check if all tags fit into an unsigned int bit array. */ struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; /* function implementations */ void applybounds(Client *c, struct wlr_box *bbox) { if (!c->isfullscreen) { struct wlr_box min = {0}, max = {0}; client_get_size_hints(c, &max, &min); /* try to set size hints */ c->geom.width = MAX(min.width + (2 * (int)c->bw), c->geom.width); c->geom.height = MAX(min.height + (2 * (int)c->bw), c->geom.height); /* Some clients set their max size to INT_MAX, which does not violate the * protocol but its unnecesary, as they can set their max size to zero. */ if (max.width > 0 && !(2 * c->bw > INT_MAX - max.width)) /* Checks for overflow */ c->geom.width = MIN(max.width + (2 * c->bw), c->geom.width); if (max.height > 0 && !(2 * c->bw > INT_MAX - max.height)) /* Checks for overflow */ c->geom.height = MIN(max.height + (2 * c->bw), c->geom.height); } if (c->geom.x >= bbox->x + bbox->width) c->geom.x = bbox->x + bbox->width - c->geom.width; if (c->geom.y >= bbox->y + bbox->height) c->geom.y = bbox->y + bbox->height - c->geom.height; if (c->geom.x + c->geom.width + 2 * c->bw <= bbox->x) c->geom.x = bbox->x; if (c->geom.y + c->geom.height + 2 * c->bw <= bbox->y) c->geom.y = bbox->y; } void applyrules(Client *c) { /* rule matching */ const char *appid, *title; unsigned int i, newtags = 0; const Rule *r; Monitor *mon = selmon, *m; c->isfloating = client_is_float_type(c); if (!(appid = client_get_appid(c))) appid = broken; if (!(title = client_get_title(c))) title = broken; for (r = rules; r < END(rules); r++) { if ((!r->title || strstr(title, r->title)) && (!r->id || strstr(appid, r->id))) { c->isfloating = r->isfloating; c->isterm = r->isterm; c->noswallow = r->noswallow; newtags |= r->tags; i = 0; wl_list_for_each(m, &mons, link) if (r->monitor == i++) mon = m; } } wlr_scene_node_reparent(&c->scene->node, layers[c->isfloating ? LyrFloat : LyrTile]); setmon(c, mon, newtags); } void arrange(Monitor *m) { Client *c; wl_list_for_each(c, &clients, link) if (c->mon == m) wlr_scene_node_set_enabled(&c->scene->node, VISIBLEON(c, m)); wlr_scene_node_set_enabled(&m->fullscreen_bg->node, (c = focustop(m)) && c->isfullscreen); if (m && m->lt[m->sellt]->arrange) m->lt[m->sellt]->arrange(m); motionnotify(0); checkidleinhibitor(NULL); } void arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, int exclusive) { LayerSurface *layersurface; struct wlr_box full_area = m->m; wl_list_for_each(layersurface, list, link) { struct wlr_layer_surface_v1 *wlr_layer_surface = layersurface->layer_surface; struct wlr_layer_surface_v1_state *state = &wlr_layer_surface->current; if (exclusive != (state->exclusive_zone > 0)) continue; wlr_scene_layer_surface_v1_configure(layersurface->scene_layer, &full_area, usable_area); wlr_scene_node_set_position(&layersurface->popups->node, layersurface->scene->node.x, layersurface->scene->node.y); layersurface->geom.x = layersurface->scene->node.x; layersurface->geom.y = layersurface->scene->node.y; } } void arrangelayers(Monitor *m) { int i; struct wlr_box usable_area = m->m; uint32_t layers_above_shell[] = { ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY, ZWLR_LAYER_SHELL_V1_LAYER_TOP, }; LayerSurface *layersurface; if (!m->wlr_output->enabled) return; /* Arrange exclusive surfaces from top->bottom */ for (i = 3; i >= 0; i--) arrangelayer(m, &m->layers[i], &usable_area, 1); if (memcmp(&usable_area, &m->w, sizeof(struct wlr_box))) { m->w = usable_area; arrange(m); } /* Arrange non-exlusive surfaces from top->bottom */ for (i = 3; i >= 0; i--) arrangelayer(m, &m->layers[i], &usable_area, 0); /* Find topmost keyboard interactive layer, if such a layer exists */ for (i = 0; i < LENGTH(layers_above_shell); i++) { wl_list_for_each_reverse(layersurface, &m->layers[layers_above_shell[i]], link) { if (!locked && layersurface->layer_surface->current.keyboard_interactive && layersurface->mapped) { /* Deactivate the focused client. */ focusclient(NULL, 0); exclusive_focus = layersurface; client_notify_enter(layersurface->layer_surface->surface, wlr_seat_get_keyboard(seat)); return; } } } } void axisnotify(struct wl_listener *listener, void *data) { /* This event is forwarded by the cursor when a pointer emits an axis event, * for example when you move the scroll wheel. */ struct wlr_pointer_axis_event *event = data; IDLE_NOTIFY_ACTIVITY; /* TODO: allow usage of scroll whell for mousebindings, it can be implemented * checking the event's orientation and the delta of the event */ /* Notify the client with pointer focus of the axis event. */ wlr_seat_pointer_notify_axis(seat, event->time_msec, event->orientation, event->delta, event->delta_discrete, event->source); } void buttonpress(struct wl_listener *listener, void *data) { struct wlr_pointer_button_event *event = data; struct wlr_keyboard *keyboard; uint32_t mods; Client *c; const Button *b; IDLE_NOTIFY_ACTIVITY; switch (event->state) { case WLR_BUTTON_PRESSED: cursor_mode = CurPressed; if (locked) break; /* Change focus if the button was _pressed_ over a client */ xytonode(cursor->x, cursor->y, NULL, &c, NULL, NULL, NULL); if (c && (!client_is_unmanaged(c) || client_wants_focus(c))) focusclient(c, 1); keyboard = wlr_seat_get_keyboard(seat); mods = keyboard ? wlr_keyboard_get_modifiers(keyboard) : 0; for (b = buttons; b < END(buttons); b++) { if (CLEANMASK(mods) == CLEANMASK(b->mod) && event->button == b->button && b->func) { b->func(&b->arg); return; } } break; case WLR_BUTTON_RELEASED: /* If you released any buttons, we exit interactive move/resize mode. */ if (!locked && cursor_mode != CurNormal && cursor_mode != CurPressed) { cursor_mode = CurNormal; /* Clear the pointer focus, this way if the cursor is over a surface * we will send an enter event after which the client will provide us * a cursor surface */ wlr_seat_pointer_clear_focus(seat); motionnotify(0); /* Drop the window off on its new monitor */ selmon = xytomon(cursor->x, cursor->y); setmon(grabc, selmon, 0); return; } else { cursor_mode = CurNormal; } break; } /* If the event wasn't handled by the compositor, notify the client with * pointer focus that a button press has occurred */ wlr_seat_pointer_notify_button(seat, event->time_msec, event->button, event->state); } void chvt(const Arg *arg) { wlr_session_change_vt(wlr_backend_get_session(backend), arg->ui); } void checkidleinhibitor(struct wlr_surface *exclude) { int inhibited = 0; struct wlr_idle_inhibitor_v1 *inhibitor; wl_list_for_each(inhibitor, &idle_inhibit_mgr->inhibitors, link) { struct wlr_surface *surface = wlr_surface_get_root_surface(inhibitor->surface); struct wlr_scene_tree *tree = surface->data; if (exclude != surface && (bypass_surface_visibility || (!tree || tree->node.enabled))) { inhibited = 1; break; } } wlr_idle_set_enabled(idle, NULL, !inhibited); wlr_idle_notifier_v1_set_inhibited(idle_notifier, inhibited); } void cleanup(void) { #ifdef XWAYLAND wlr_xwayland_destroy(xwayland); #endif wl_display_destroy_clients(dpy); if (child_pid > 0) { kill(child_pid, SIGTERM); waitpid(child_pid, NULL, 0); } wlr_backend_destroy(backend); wlr_renderer_destroy(drw); wlr_allocator_destroy(alloc); wlr_xcursor_manager_destroy(cursor_mgr); wlr_cursor_destroy(cursor); wlr_output_layout_destroy(output_layout); wlr_seat_destroy(seat); wl_display_destroy(dpy); } void cleanupkeyboard(struct wl_listener *listener, void *data) { Keyboard *kb = wl_container_of(listener, kb, destroy); wl_event_source_remove(kb->key_repeat_source); wl_list_remove(&kb->link); wl_list_remove(&kb->modifiers.link); wl_list_remove(&kb->key.link); wl_list_remove(&kb->destroy.link); free(kb); } void cleanupmon(struct wl_listener *listener, void *data) { Monitor *m = wl_container_of(listener, m, destroy); LayerSurface *l, *tmp; int i; for (i = 0; i <= ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY; i++) wl_list_for_each_safe(l, tmp, &m->layers[i], link) wlr_layer_surface_v1_destroy(l->layer_surface); wl_list_remove(&m->destroy.link); wl_list_remove(&m->frame.link); wl_list_remove(&m->link); m->wlr_output->data = NULL; wlr_output_layout_remove(output_layout, m->wlr_output); wlr_scene_output_destroy(m->scene_output); wlr_scene_node_destroy(&m->fullscreen_bg->node); closemon(m); free(m); } void closemon(Monitor *m) { /* update selmon if needed and * move closed monitor's clients to the focused one */ Client *c; if (wl_list_empty(&mons)) { selmon = NULL; } else if (m == selmon) { int nmons = wl_list_length(&mons), i = 0; do /* don't switch to disabled mons */ selmon = wl_container_of(mons.next, selmon, link); while (!selmon->wlr_output->enabled && i++ < nmons); } wl_list_for_each(c, &clients, link) { if (c->isfloating && c->geom.x > m->m.width) resize(c, (struct wlr_box){.x = c->geom.x - m->w.width, .y = c->geom.y, .width = c->geom.width, .height = c->geom.height}, 0); if (c->mon == m) setmon(c, selmon, c->tags); } focusclient(focustop(selmon), 1); printstatus(); } void commitlayersurfacenotify(struct wl_listener *listener, void *data) { LayerSurface *layersurface = wl_container_of(listener, layersurface, surface_commit); struct wlr_layer_surface_v1 *wlr_layer_surface = layersurface->layer_surface; struct wlr_output *wlr_output = wlr_layer_surface->output; /* For some reason this layersurface have no monitor, this can be because * its monitor has just been destroyed */ if (!wlr_output || !(layersurface->mon = wlr_output->data)) return; if (layers[wlr_layer_surface->current.layer] != layersurface->scene->node.parent) { wlr_scene_node_reparent(&layersurface->scene->node, layers[wlr_layer_surface->current.layer]); wlr_scene_node_reparent(&layersurface->popups->node, layers[wlr_layer_surface->current.layer]); wl_list_remove(&layersurface->link); wl_list_insert(&layersurface->mon->layers[wlr_layer_surface->current.layer], &layersurface->link); } if (wlr_layer_surface->current.layer < ZWLR_LAYER_SHELL_V1_LAYER_TOP) wlr_scene_node_reparent(&layersurface->popups->node, layers[LyrTop]); if (wlr_layer_surface->current.committed == 0 && layersurface->mapped == wlr_layer_surface->mapped) return; layersurface->mapped = wlr_layer_surface->mapped; arrangelayers(layersurface->mon); } void commitnotify(struct wl_listener *listener, void *data) { Client *c = wl_container_of(listener, c, commit); struct wlr_box box = {0}; client_get_geometry(c, &box); if (c->mon && !wlr_box_empty(&box) && (box.width != c->geom.width - 2 * c->bw || box.height != c->geom.height - 2 * c->bw)) c->isfloating ? resize(c, c->geom, 1) : arrange(c->mon); /* mark a pending resize as completed */ if (c->resize && c->resize <= c->surface.xdg->current.configure_serial) c->resize = 0; } void createdecoration(struct wl_listener *listener, void *data) { struct wlr_xdg_toplevel_decoration_v1 *dec = data; wlr_xdg_toplevel_decoration_v1_set_mode(dec, WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE); } void createidleinhibitor(struct wl_listener *listener, void *data) { struct wlr_idle_inhibitor_v1 *idle_inhibitor = data; wl_signal_add(&idle_inhibitor->events.destroy, &idle_inhibitor_destroy); checkidleinhibitor(NULL); } void createkeyboard(struct wlr_keyboard *keyboard) { struct xkb_context *context; struct xkb_keymap *keymap; Keyboard *kb = keyboard->data = ecalloc(1, sizeof(*kb)); kb->wlr_keyboard = keyboard; /* Prepare an XKB keymap and assign it to the keyboard. */ context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); keymap = xkb_keymap_new_from_names(context, &xkb_rules, XKB_KEYMAP_COMPILE_NO_FLAGS); wlr_keyboard_set_keymap(keyboard, keymap); xkb_keymap_unref(keymap); xkb_context_unref(context); wlr_keyboard_set_repeat_info(keyboard, repeat_rate, repeat_delay); /* Here we set up listeners for keyboard events. */ LISTEN(&keyboard->events.modifiers, &kb->modifiers, keypressmod); LISTEN(&keyboard->events.key, &kb->key, keypress); LISTEN(&keyboard->base.events.destroy, &kb->destroy, cleanupkeyboard); wlr_seat_set_keyboard(seat, keyboard); kb->key_repeat_source = wl_event_loop_add_timer( wl_display_get_event_loop(dpy), keyrepeat, kb); /* And add the keyboard to our list of keyboards */ wl_list_insert(&keyboards, &kb->link); } void createlayersurface(struct wl_listener *listener, void *data) { struct wlr_layer_surface_v1 *wlr_layer_surface = data; LayerSurface *layersurface; struct wlr_layer_surface_v1_state old_state; if (!wlr_layer_surface->output) wlr_layer_surface->output = selmon ? selmon->wlr_output : NULL; if (!wlr_layer_surface->output) wlr_layer_surface_v1_destroy(wlr_layer_surface); layersurface = ecalloc(1, sizeof(LayerSurface)); layersurface->type = LayerShell; LISTEN(&wlr_layer_surface->surface->events.commit, &layersurface->surface_commit, commitlayersurfacenotify); LISTEN(&wlr_layer_surface->events.destroy, &layersurface->destroy, destroylayersurfacenotify); LISTEN(&wlr_layer_surface->events.map, &layersurface->map, maplayersurfacenotify); LISTEN(&wlr_layer_surface->events.unmap, &layersurface->unmap, unmaplayersurfacenotify); layersurface->layer_surface = wlr_layer_surface; layersurface->mon = wlr_layer_surface->output->data; wlr_layer_surface->data = layersurface; layersurface->scene_layer = wlr_scene_layer_surface_v1_create( layers[wlr_layer_surface->pending.layer], wlr_layer_surface); layersurface->scene = layersurface->scene_layer->tree; layersurface->popups = wlr_layer_surface->surface->data = wlr_scene_tree_create(layers[wlr_layer_surface->pending.layer]); layersurface->scene->node.data = layersurface; wl_list_insert(&layersurface->mon->layers[wlr_layer_surface->pending.layer], &layersurface->link); /* Temporarily set the layer's current state to pending * so that we can easily arrange it */ old_state = wlr_layer_surface->current; wlr_layer_surface->current = wlr_layer_surface->pending; layersurface->mapped = 1; arrangelayers(layersurface->mon); wlr_layer_surface->current = old_state; } void createlocksurface(struct wl_listener *listener, void *data) { SessionLock *lock = wl_container_of(listener, lock, new_surface); struct wlr_session_lock_surface_v1 *lock_surface = data; Monitor *m = lock_surface->output->data; struct wlr_scene_tree *scene_tree = lock_surface->surface->data = wlr_scene_subsurface_tree_create(lock->scene, lock_surface->surface); m->lock_surface = lock_surface; wlr_scene_node_set_position(&scene_tree->node, m->m.x, m->m.y); wlr_session_lock_surface_v1_configure(lock_surface, m->m.width, m->m.height); LISTEN(&lock_surface->events.destroy, &m->destroy_lock_surface, destroylocksurface); if (m == selmon) client_notify_enter(lock_surface->surface, wlr_seat_get_keyboard(seat)); } void createmon(struct wl_listener *listener, void *data) { /* This event is raised by the backend when a new output (aka a display or * monitor) becomes available. */ struct wlr_output *wlr_output = data; const MonitorRule *r; size_t i; Monitor *m = wlr_output->data = ecalloc(1, sizeof(*m)); m->wlr_output = wlr_output; wlr_output_init_render(wlr_output, alloc, drw); /* Initialize monitor state using configured rules */ for (i = 0; i < LENGTH(m->layers); i++) wl_list_init(&m->layers[i]); m->tagset[0] = m->tagset[1] = 1; for (r = monrules; r < END(monrules); r++) { if (!r->name || strstr(wlr_output->name, r->name)) { m->mfact = r->mfact; m->nmaster = r->nmaster; wlr_output_set_scale(wlr_output, r->scale); wlr_xcursor_manager_load(cursor_mgr, r->scale); m->lt[0] = m->lt[1] = r->lt; wlr_output_set_transform(wlr_output, r->rr); m->m.x = r->x; m->m.y = r->y; break; } } /* The mode is a tuple of (width, height, refresh rate), and each * monitor supports only a specific set of modes. We just pick the * monitor's preferred mode; a more sophisticated compositor would let * the user configure it. */ wlr_output_set_mode(wlr_output, wlr_output_preferred_mode(wlr_output)); /* Set up event listeners */ LISTEN(&wlr_output->events.frame, &m->frame, rendermon); LISTEN(&wlr_output->events.destroy, &m->destroy, cleanupmon); wlr_output_enable(wlr_output, 1); if (!wlr_output_commit(wlr_output)) return; /* Try to enable adaptive sync, note that not all monitors support it. * wlr_output_commit() will deactivate it in case it cannot be enabled */ wlr_output_enable_adaptive_sync(wlr_output, 1); wlr_output_commit(wlr_output); wl_list_insert(&mons, &m->link); printstatus(); /* The xdg-protocol specifies: * * 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. * */ /* updatemons() will resize and set correct position */ m->fullscreen_bg = wlr_scene_rect_create(layers[LyrFS], 0, 0, fullscreen_bg); wlr_scene_node_set_enabled(&m->fullscreen_bg->node, 0); /* Adds this to the output layout in the order it was configured in. * * The output layout utility automatically adds a wl_output global to the * display, which Wayland clients can see to find out information about the * output (such as DPI, scale factor, manufacturer, etc). */ m->scene_output = wlr_scene_output_create(scene, wlr_output); if (m->m.x < 0 || m->m.y < 0) wlr_output_layout_add_auto(output_layout, wlr_output); else wlr_output_layout_add(output_layout, wlr_output, m->m.x, m->m.y); } void createnotify(struct wl_listener *listener, void *data) { /* This event is raised when wlr_xdg_shell receives a new xdg surface from a * client, either a toplevel (application window) or popup, * or when wlr_layer_shell receives a new popup from a layer. * If you want to do something tricky with popups you should check if * its parent is wlr_xdg_shell or wlr_layer_shell */ struct wlr_xdg_surface *xdg_surface = data; Client *c = NULL; LayerSurface *l = NULL; if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP) { struct wlr_box box; int type = toplevel_from_wlr_surface(xdg_surface->surface, &c, &l); if (!xdg_surface->popup->parent || type < 0) return; xdg_surface->surface->data = wlr_scene_xdg_surface_create( xdg_surface->popup->parent->data, xdg_surface); if ((l && !l->mon) || (c && !c->mon)) return; box = type == LayerShell ? l->mon->m : c->mon->w; box.x -= (type == LayerShell ? l->geom.x : c->geom.x); box.y -= (type == LayerShell ? l->geom.y : c->geom.y); wlr_xdg_popup_unconstrain_from_box(xdg_surface->popup, &box); return; } else if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_NONE) return; /* Allocate a Client for this surface */ c = xdg_surface->data = ecalloc(1, sizeof(*c)); c->surface.xdg = xdg_surface; c->bw = borderpx; wl_client_get_credentials(c->surface.xdg->client->client, &c->pid, NULL, NULL); LISTEN(&xdg_surface->events.map, &c->map, mapnotify); LISTEN(&xdg_surface->events.unmap, &c->unmap, unmapnotify); LISTEN(&xdg_surface->events.destroy, &c->destroy, destroynotify); LISTEN(&xdg_surface->toplevel->events.set_title, &c->set_title, updatetitle); LISTEN(&xdg_surface->toplevel->events.request_fullscreen, &c->fullscreen, fullscreennotify); LISTEN(&xdg_surface->toplevel->events.request_maximize, &c->maximize, maximizenotify); } void createpointer(struct wlr_pointer *pointer) { if (wlr_input_device_is_libinput(&pointer->base)) { struct libinput_device *libinput_device = (struct libinput_device*) wlr_libinput_get_device_handle(&pointer->base); if (libinput_device_config_tap_get_finger_count(libinput_device)) { libinput_device_config_tap_set_enabled(libinput_device, tap_to_click); libinput_device_config_tap_set_drag_enabled(libinput_device, tap_and_drag); libinput_device_config_tap_set_drag_lock_enabled(libinput_device, drag_lock); libinput_device_config_tap_set_button_map(libinput_device, button_map); } if (libinput_device_config_scroll_has_natural_scroll(libinput_device)) libinput_device_config_scroll_set_natural_scroll_enabled(libinput_device, natural_scrolling); if (libinput_device_config_dwt_is_available(libinput_device)) libinput_device_config_dwt_set_enabled(libinput_device, disable_while_typing); if (libinput_device_config_left_handed_is_available(libinput_device)) libinput_device_config_left_handed_set(libinput_device, left_handed); if (libinput_device_config_middle_emulation_is_available(libinput_device)) libinput_device_config_middle_emulation_set_enabled(libinput_device, middle_button_emulation); if (libinput_device_config_scroll_get_methods(libinput_device) != LIBINPUT_CONFIG_SCROLL_NO_SCROLL) libinput_device_config_scroll_set_method (libinput_device, scroll_method); if (libinput_device_config_click_get_methods(libinput_device) != LIBINPUT_CONFIG_CLICK_METHOD_NONE) libinput_device_config_click_set_method (libinput_device, click_method); if (libinput_device_config_send_events_get_modes(libinput_device)) libinput_device_config_send_events_set_mode(libinput_device, send_events_mode); if (libinput_device_config_accel_is_available(libinput_device)) { libinput_device_config_accel_set_profile(libinput_device, accel_profile); libinput_device_config_accel_set_speed(libinput_device, accel_speed); } } wlr_cursor_attach_input_device(cursor, &pointer->base); } void cursorframe(struct wl_listener *listener, void *data) { /* This event is forwarded by the cursor when a pointer emits an frame * event. Frame events are sent after regular pointer events to group * multiple events together. For instance, two axis events may happen at the * same time, in which case a frame event won't be sent in between. */ /* Notify the client with pointer focus of the frame event. */ wlr_seat_pointer_notify_frame(seat); } void destroydragicon(struct wl_listener *listener, void *data) { struct wlr_drag_icon *icon = data; wlr_scene_node_destroy(icon->data); /* Focus enter isn't sent during drag, so refocus the focused node. */ focusclient(focustop(selmon), 1); motionnotify(0); } void destroyidleinhibitor(struct wl_listener *listener, void *data) { /* `data` is the wlr_surface of the idle inhibitor being destroyed, * at this point the idle inhibitor is still in the list of the manager */ checkidleinhibitor(wlr_surface_get_root_surface(data)); } void destroylayersurfacenotify(struct wl_listener *listener, void *data) { LayerSurface *layersurface = wl_container_of(listener, layersurface, destroy); wl_list_remove(&layersurface->link); wl_list_remove(&layersurface->destroy.link); wl_list_remove(&layersurface->map.link); wl_list_remove(&layersurface->unmap.link); wl_list_remove(&layersurface->surface_commit.link); wlr_scene_node_destroy(&layersurface->scene->node); free(layersurface); } void destroylock(SessionLock *lock, int unlock) { wlr_seat_keyboard_notify_clear_focus(seat); if ((locked = !unlock)) goto destroy; wlr_scene_node_set_enabled(&locked_bg->node, 0); focusclient(focustop(selmon), 0); motionnotify(0); destroy: wl_list_remove(&lock->new_surface.link); wl_list_remove(&lock->unlock.link); wl_list_remove(&lock->destroy.link); wlr_scene_node_destroy(&lock->scene->node); cur_lock = NULL; free(lock); } void destroylocksurface(struct wl_listener *listener, void *data) { Monitor *m = wl_container_of(listener, m, destroy_lock_surface); struct wlr_session_lock_surface_v1 *surface, *lock_surface = m->lock_surface; m->lock_surface = NULL; wl_list_remove(&m->destroy_lock_surface.link); if (lock_surface->surface == seat->keyboard_state.focused_surface) { if (locked && cur_lock && !wl_list_empty(&cur_lock->surfaces)) { surface = wl_container_of(cur_lock->surfaces.next, surface, link); client_notify_enter(surface->surface, wlr_seat_get_keyboard(seat)); } else if (!locked) { focusclient(focustop(selmon), 1); } else { wlr_seat_keyboard_clear_focus(seat); } } } void destroynotify(struct wl_listener *listener, void *data) { /* Called when the surface is destroyed and should never be shown again. */ Client *c = wl_container_of(listener, c, destroy); wl_list_remove(&c->map.link); wl_list_remove(&c->unmap.link); wl_list_remove(&c->destroy.link); wl_list_remove(&c->set_title.link); wl_list_remove(&c->fullscreen.link); #ifdef XWAYLAND if (c->type != XDGShell) { wl_list_remove(&c->configure.link); wl_list_remove(&c->set_hints.link); wl_list_remove(&c->activate.link); } #endif free(c); } void destroysessionlock(struct wl_listener *listener, void *data) { SessionLock *lock = wl_container_of(listener, lock, destroy); destroylock(lock, 0); } void destroysessionmgr(struct wl_listener *listener, void *data) { wl_list_remove(&session_lock_create_lock.link); wl_list_remove(&session_lock_mgr_destroy.link); } Monitor * dirtomon(enum wlr_direction dir) { struct wlr_output *next; if (!wlr_output_layout_get(output_layout, selmon->wlr_output)) return selmon; if ((next = wlr_output_layout_adjacent_output(output_layout, dir, selmon->wlr_output, selmon->m.x, selmon->m.y))) return next->data; if ((next = wlr_output_layout_farthest_output(output_layout, dir ^ (WLR_DIRECTION_LEFT|WLR_DIRECTION_RIGHT), selmon->wlr_output, selmon->m.x, selmon->m.y))) return next->data; return selmon; } void focusclient(Client *c, int lift) { struct wlr_surface *old = seat->keyboard_state.focused_surface; int i; if (locked) return; /* Raise client in stacking order if requested */ if (c && lift) wlr_scene_node_raise_to_top(&c->scene->node); if (c && client_surface(c) == old) return; /* Put the new client atop the focus stack and select its monitor */ if (c && !client_is_unmanaged(c)) { wl_list_remove(&c->flink); wl_list_insert(&fstack, &c->flink); selmon = c->mon; c->isurgent = 0; client_restack_surface(c); /* Don't change border color if there is an exclusive focus or we are * handling a drag operation */ if (!exclusive_focus && !seat->drag) for (i = 0; i < 4; i++) wlr_scene_rect_set_color(c->border[i], focuscolor); } /* Deactivate old client if focus is changing */ if (old && (!c || client_surface(c) != old)) { /* If an overlay is focused, don't focus or activate the client, * but only update its position in fstack to render its border with focuscolor * and focus it after the overlay is closed. */ Client *w = NULL; LayerSurface *l = NULL; int type = toplevel_from_wlr_surface(old, &w, &l); if (type == LayerShell && l->scene->node.enabled && l->layer_surface->current.layer >= ZWLR_LAYER_SHELL_V1_LAYER_TOP) { return; } else if (w && w == exclusive_focus && client_wants_focus(w)) { return; /* Don't deactivate old client if the new one wants focus, as this causes issues with winecfg * and probably other clients */ } else if (w && !client_is_unmanaged(w) && (!c || !client_wants_focus(c))) { for (i = 0; i < 4; i++) wlr_scene_rect_set_color(w->border[i], bordercolor); client_activate_surface(old, 0); } } printstatus(); if (!c) { /* With no client, all we have left is to clear focus */ wlr_seat_keyboard_notify_clear_focus(seat); return; } /* Change cursor surface */ motionnotify(0); /* Have a client, so focus its top-level wlr_surface */ client_notify_enter(client_surface(c), wlr_seat_get_keyboard(seat)); /* Activate the new client */ client_activate_surface(client_surface(c), 1); } void focusmon(const Arg *arg) { int i = 0, nmons = wl_list_length(&mons); if (nmons) do /* don't switch to disabled mons */ selmon = dirtomon(arg->i); while (!selmon->wlr_output->enabled && i++ < nmons); focusclient(focustop(selmon), 1); } void focusstack(const Arg *arg) { /* Focus the next or previous client (in tiling order) on selmon */ Client *c, *sel = focustop(selmon); if (!sel || sel->isfullscreen) return; if (arg->i > 0) { wl_list_for_each(c, &sel->link, link) { if (&c->link == &clients) continue; /* wrap past the sentinel node */ if (VISIBLEON(c, selmon)) break; /* found it */ } } else { wl_list_for_each_reverse(c, &sel->link, link) { if (&c->link == &clients) continue; /* wrap past the sentinel node */ if (VISIBLEON(c, selmon)) break; /* found it */ } } /* If only one client is visible on selmon, then c == sel */ focusclient(c, 1); } /* We probably should change the name of this, it sounds like * will focus the topmost client of this mon, when actually will * only return that client */ Client * focustop(Monitor *m) { Client *c; wl_list_for_each(c, &fstack, flink) if (VISIBLEON(c, m)) return c; return NULL; } void fullscreennotify(struct wl_listener *listener, void *data) { Client *c = wl_container_of(listener, c, fullscreen); setfullscreen(c, client_wants_fullscreen(c)); } pid_t getparentprocess(pid_t p) { unsigned int v = 0; FILE *f; char buf[256]; snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p); if (!(f = fopen(buf, "r"))) return 0; fscanf(f, "%*u %*s %*c %u", &v); fclose(f); return (pid_t)v; } int isdescprocess(pid_t p, pid_t c) { while (p != c && c != 0) c = getparentprocess(c); return (int)c; } Client * termforwin(Client *w) { Client *c; if (!w->pid || w->isterm || w->noswallow) return NULL; wl_list_for_each(c, &clients, link) if (c->isterm && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid)) return c; return NULL; } void swallow(Client *c, Client *w) { c->bw = w->bw; c->isfloating = w->isfloating; c->isurgent = w->isurgent; c->isfullscreen = w->isfullscreen; resize(c, w->geom, 0); wl_list_insert(&w->link, &c->link); wl_list_insert(&w->flink, &c->flink); wlr_scene_node_set_enabled(&w->scene->node, 0); wlr_scene_node_set_enabled(&c->scene->node, 1); } void incnmaster(const Arg *arg) { if (!arg || !selmon) return; selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); arrange(selmon); } void inputdevice(struct wl_listener *listener, void *data) { /* This event is raised by the backend when a new input device becomes * available. */ struct wlr_input_device *device = data; uint32_t caps; switch (device->type) { case WLR_INPUT_DEVICE_KEYBOARD: createkeyboard(wlr_keyboard_from_input_device(device)); break; case WLR_INPUT_DEVICE_POINTER: createpointer(wlr_pointer_from_input_device(device)); break; default: /* TODO handle other input device types */ break; } /* We need to let the wlr_seat know what our capabilities are, which is * communiciated to the client. In dwl we always have a cursor, even if * there are no pointer devices, so we always include that capability. */ /* TODO do we actually require a cursor? */ caps = WL_SEAT_CAPABILITY_POINTER; if (!wl_list_empty(&keyboards)) caps |= WL_SEAT_CAPABILITY_KEYBOARD; wlr_seat_set_capabilities(seat, caps); } int keybinding(uint32_t mods, xkb_keysym_t sym) { /* * Here we handle compositor keybindings. This is when the compositor is * processing keys, rather than passing them on to the client for its own * processing. */ int handled = 0; const Key *k; for (k = keys; k < END(keys); k++) { if (CLEANMASK(mods) == CLEANMASK(k->mod) && sym == k->keysym && k->func) { k->func(&k->arg); handled = 1; } } return handled; } void keypress(struct wl_listener *listener, void *data) { int i; /* This event is raised when a key is pressed or released. */ Keyboard *kb = wl_container_of(listener, kb, key); struct wlr_keyboard_key_event *event = data; /* Translate libinput keycode -> xkbcommon */ uint32_t keycode = event->keycode + 8; /* Get a list of keysyms based on the keymap for this keyboard */ const xkb_keysym_t *syms; int nsyms = xkb_state_key_get_syms( kb->wlr_keyboard->xkb_state, keycode, &syms); int handled = 0; uint32_t mods = wlr_keyboard_get_modifiers(kb->wlr_keyboard); IDLE_NOTIFY_ACTIVITY; /* On _press_ if there is no active screen locker, * attempt to process a compositor keybinding. */ if (!locked && !input_inhibit_mgr->active_inhibitor && event->state == WL_KEYBOARD_KEY_STATE_PRESSED) for (i = 0; i < nsyms; i++) handled = keybinding(mods, syms[i]) || handled; if (handled && kb->wlr_keyboard->repeat_info.delay > 0) { kb->mods = mods; kb->keysyms = syms; kb->nsyms = nsyms; wl_event_source_timer_update(kb->key_repeat_source, kb->wlr_keyboard->repeat_info.delay); } else { kb->nsyms = 0; wl_event_source_timer_update(kb->key_repeat_source, 0); } if (!handled) { /* Pass unhandled keycodes along to the client. */ wlr_seat_set_keyboard(seat, kb->wlr_keyboard); wlr_seat_keyboard_notify_key(seat, event->time_msec, event->keycode, event->state); } } void keypressmod(struct wl_listener *listener, void *data) { /* This event is raised when a modifier key, such as shift or alt, is * pressed. We simply communicate this to the client. */ Keyboard *kb = wl_container_of(listener, kb, modifiers); /* * A seat can only have one keyboard, but this is a limitation of the * Wayland protocol - not wlroots. We assign all connected keyboards to the * same seat. You can swap out the underlying wlr_keyboard like this and * wlr_seat handles this transparently. */ wlr_seat_set_keyboard(seat, kb->wlr_keyboard); /* Send modifiers to the client. */ wlr_seat_keyboard_notify_modifiers(seat, &kb->wlr_keyboard->modifiers); } int keyrepeat(void *data) { Keyboard *kb = data; int i; if (kb->nsyms && kb->wlr_keyboard->repeat_info.rate > 0) { wl_event_source_timer_update(kb->key_repeat_source, 1000 / kb->wlr_keyboard->repeat_info.rate); for (i = 0; i < kb->nsyms; i++) keybinding(kb->mods, kb->keysyms[i]); } return 0; } void killclient(const Arg *arg) { Client *sel = focustop(selmon); if (sel) client_send_close(sel); } void locksession(struct wl_listener *listener, void *data) { struct wlr_session_lock_v1 *session_lock = data; SessionLock *lock; wlr_scene_node_set_enabled(&locked_bg->node, 1); if (cur_lock) { wlr_session_lock_v1_destroy(session_lock); return; } lock = ecalloc(1, sizeof(*lock)); focusclient(NULL, 0); lock->scene = wlr_scene_tree_create(layers[LyrBlock]); cur_lock = lock->lock = session_lock; locked = 1; session_lock->data = lock; LISTEN(&session_lock->events.new_surface, &lock->new_surface, createlocksurface); LISTEN(&session_lock->events.destroy, &lock->destroy, destroysessionlock); LISTEN(&session_lock->events.unlock, &lock->unlock, unlocksession); wlr_session_lock_v1_send_locked(session_lock); } void maplayersurfacenotify(struct wl_listener *listener, void *data) { LayerSurface *l = wl_container_of(listener, l, map); wlr_surface_send_enter(l->layer_surface->surface, l->mon->wlr_output); motionnotify(0); } void mapnotify(struct wl_listener *listener, void *data) { /* Called when the surface is mapped, or ready to display on-screen. */ Client *p, *w, *t, *c = wl_container_of(listener, c, map); Monitor *m; int i; /* Create scene tree for this client and its border */ c->scene = wlr_scene_tree_create(layers[LyrTile]); wlr_scene_node_set_enabled(&c->scene->node, c->type != XDGShell); c->scene_surface = c->type == XDGShell ? wlr_scene_xdg_surface_create(c->scene, c->surface.xdg) : wlr_scene_subsurface_tree_create(c->scene, client_surface(c)); if (client_surface(c)) { client_surface(c)->data = c->scene; /* Ideally we should do this in createnotify{,x11} but at that moment * wlr_xwayland_surface doesn't have wlr_surface yet. */ LISTEN(&client_surface(c)->events.commit, &c->commit, commitnotify); } c->scene->node.data = c->scene_surface->node.data = c; /* Handle unmanaged clients first so we can return prior create borders */ if (client_is_unmanaged(c)) { client_get_geometry(c, &c->geom); /* Unmanaged clients always are floating */ wlr_scene_node_reparent(&c->scene->node, layers[LyrFloat]); wlr_scene_node_set_position(&c->scene->node, c->geom.x + borderpx, c->geom.y + borderpx); if (client_wants_focus(c)) { focusclient(c, 1); exclusive_focus = c; } goto unset_fullscreen; } for (i = 0; i < 4; i++) { c->border[i] = wlr_scene_rect_create(c->scene, 0, 0, bordercolor); c->border[i]->node.data = c; } /* Initialize client geometry with room for border */ client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT); client_get_geometry(c, &c->geom); c->geom.width += 2 * c->bw; c->geom.height += 2 * c->bw; /* Insert this client into client lists. */ wl_list_insert(&clients, &c->link); wl_list_insert(&fstack, &c->flink); /* Set initial monitor, tags, floating status, and focus: * we always consider floating, clients that have parent and thus * we set the same tags and monitor than its parent, if not * try to apply rules for them */ /* TODO: https://github.com/djpohly/dwl/pull/334#issuecomment-1330166324 */ if (c->type == XDGShell && (p = client_get_parent(c))) { c->isfloating = 1; wlr_scene_node_reparent(&c->scene->node, layers[LyrFloat]); setmon(c, p->mon, p->tags); } else { applyrules(c); } printstatus(); if (!c->noswallow) { t = termforwin(c); if (t) { c->swallowedby = t; t->swallowing = c; wl_list_remove(&c->link); wl_list_remove(&c->flink); swallow(c,t); wl_list_remove(&t->link); wl_list_remove(&t->flink); arrange(c->mon); } } unset_fullscreen: m = c->mon ? c->mon : xytomon(c->geom.x, c->geom.y); wl_list_for_each(w, &clients, link) if (w != c && w->isfullscreen && m == w->mon && (w->tags & c->tags)) setfullscreen(w, 0); } void maximizenotify(struct wl_listener *listener, void *data) { /* This event is raised when a client would like to maximize itself, * typically because the user clicked on the maximize button on * client-side decorations. dwl doesn't support maximization, but * to conform to xdg-shell protocol we still must send a configure. * wlr_xdg_surface_schedule_configure() is used to send an empty reply. */ Client *c = wl_container_of(listener, c, maximize); wlr_xdg_surface_schedule_configure(c->surface.xdg); } void monocle(Monitor *m) { Client *c; wl_list_for_each(c, &clients, link) { if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen) continue; resize(c, m->w, 0); } if ((c = focustop(m))) wlr_scene_node_raise_to_top(&c->scene->node); } void motionabsolute(struct wl_listener *listener, void *data) { /* This event is forwarded by the cursor when a pointer emits an _absolute_ * motion event, from 0..1 on each axis. This happens, for example, when * wlroots is running under a Wayland window rather than KMS+DRM, and you * move the mouse over the window. You could enter the window from any edge, * so we have to warp the mouse there. There is also some hardware which * emits these events. */ struct wlr_pointer_motion_absolute_event *event = data; wlr_cursor_warp_absolute(cursor, &event->pointer->base, event->x, event->y); motionnotify(event->time_msec); } void motionnotify(uint32_t time) { double sx = 0, sy = 0; Client *c = NULL, *w = NULL; LayerSurface *l = NULL; int type; struct wlr_surface *surface = NULL; struct wlr_drag_icon *icon; /* time is 0 in internal calls meant to restore pointer focus. */ if (time) { IDLE_NOTIFY_ACTIVITY; /* Update selmon (even while dragging a window) */ if (sloppyfocus) selmon = xytomon(cursor->x, cursor->y); } /* Update drag icon's position if any */ if (seat->drag && (icon = seat->drag->icon)) wlr_scene_node_set_position(icon->data, cursor->x + icon->surface->sx, cursor->y + icon->surface->sy); /* If we are currently grabbing the mouse, handle and return */ if (cursor_mode == CurMove) { /* Move the grabbed client to the new position. */ resize(grabc, (struct wlr_box){.x = cursor->x - grabcx, .y = cursor->y - grabcy, .width = grabc->geom.width, .height = grabc->geom.height}, 1); return; } else if (cursor_mode == CurResize) { resize(grabc, (struct wlr_box){.x = grabc->geom.x, .y = grabc->geom.y, .width = cursor->x - grabc->geom.x, .height = cursor->y - grabc->geom.y}, 1); return; } /* Find the client under the pointer and send the event along. */ xytonode(cursor->x, cursor->y, &surface, &c, NULL, &sx, &sy); if (cursor_mode == CurPressed && !seat->drag) { if ((type = toplevel_from_wlr_surface( seat->pointer_state.focused_surface, &w, &l)) >= 0) { c = w; surface = seat->pointer_state.focused_surface; sx = cursor->x - (type == LayerShell ? l->geom.x : w->geom.x); sy = cursor->y - (type == LayerShell ? l->geom.y : w->geom.y); } } /* If there's no client surface under the cursor, set the cursor image to a * default. This is what makes the cursor image appear when you move it * off of a client or over its border. */ if (!surface && !seat->drag && (!cursor_image || strcmp(cursor_image, "left_ptr"))) wlr_xcursor_manager_set_cursor_image(cursor_mgr, (cursor_image = "left_ptr"), cursor); pointerfocus(c, surface, sx, sy, time); } void motionrelative(struct wl_listener *listener, void *data) { /* This event is forwarded by the cursor when a pointer emits a _relative_ * pointer motion event (i.e. a delta) */ struct wlr_pointer_motion_event *event = data; /* The cursor doesn't move unless we tell it to. The cursor automatically * handles constraining the motion to the output layout, as well as any * special configuration applied for the specific input device which * generated the event. You can pass NULL for the device if you want to move * the cursor around without any input. */ wlr_cursor_move(cursor, &event->pointer->base, event->delta_x, event->delta_y); motionnotify(event->time_msec); } void moveresize(const Arg *arg) { if (cursor_mode != CurNormal && cursor_mode != CurPressed) return; xytonode(cursor->x, cursor->y, NULL, &grabc, NULL, NULL, NULL); if (!grabc || client_is_unmanaged(grabc) || grabc->isfullscreen) return; /* Float the window and tell motionnotify to grab it */ setfloating(grabc, 1); switch (cursor_mode = arg->ui) { case CurMove: grabcx = cursor->x - grabc->geom.x; grabcy = cursor->y - grabc->geom.y; wlr_xcursor_manager_set_cursor_image(cursor_mgr, (cursor_image = "fleur"), cursor); break; case CurResize: /* Doesn't work for X11 output - the next absolute motion event * returns the cursor to where it started */ wlr_cursor_warp_closest(cursor, NULL, grabc->geom.x + grabc->geom.width, grabc->geom.y + grabc->geom.height); wlr_xcursor_manager_set_cursor_image(cursor_mgr, (cursor_image = "bottom_right_corner"), cursor); break; } } void outputmgrapply(struct wl_listener *listener, void *data) { struct wlr_output_configuration_v1 *config = data; outputmgrapplyortest(config, 0); } void outputmgrapplyortest(struct wlr_output_configuration_v1 *config, int test) { /* * Called when a client such as wlr-randr requests a change in output * configuration. This is only one way that the layout can be changed, * so any Monitor information should be updated by updatemons() after an * output_layout.change event, not here. */ struct wlr_output_configuration_head_v1 *config_head; int ok = 1; wl_list_for_each(config_head, &config->heads, link) { struct wlr_output *wlr_output = config_head->state.output; Monitor *m = wlr_output->data; wlr_output_enable(wlr_output, config_head->state.enabled); if (!config_head->state.enabled) goto apply_or_test; if (config_head->state.mode) wlr_output_set_mode(wlr_output, config_head->state.mode); else wlr_output_set_custom_mode(wlr_output, config_head->state.custom_mode.width, config_head->state.custom_mode.height, config_head->state.custom_mode.refresh); /* Don't move monitors if position wouldn't change, this to avoid * wlroots marking the output as manually configured */ if (m->m.x != config_head->state.x || m->m.y != config_head->state.y) wlr_output_layout_move(output_layout, wlr_output, config_head->state.x, config_head->state.y); wlr_output_set_transform(wlr_output, config_head->state.transform); wlr_output_set_scale(wlr_output, config_head->state.scale); wlr_output_enable_adaptive_sync(wlr_output, config_head->state.adaptive_sync_enabled); apply_or_test: if (test) { ok &= wlr_output_test(wlr_output); wlr_output_rollback(wlr_output); } else { ok &= wlr_output_commit(wlr_output); } } if (ok) wlr_output_configuration_v1_send_succeeded(config); else wlr_output_configuration_v1_send_failed(config); wlr_output_configuration_v1_destroy(config); /* TODO: use a wrapper function? */ updatemons(NULL, NULL); } void outputmgrtest(struct wl_listener *listener, void *data) { struct wlr_output_configuration_v1 *config = data; outputmgrapplyortest(config, 1); } void pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy, uint32_t time) { struct timespec now; int internal_call = !time; if (sloppyfocus && !internal_call && c && !client_is_unmanaged(c)) focusclient(c, 0); /* If surface is NULL, clear pointer focus */ if (!surface) { wlr_seat_pointer_notify_clear_focus(seat); return; } if (internal_call) { clock_gettime(CLOCK_MONOTONIC, &now); time = now.tv_sec * 1000 + now.tv_nsec / 1000000; } /* Let the client know that the mouse cursor has entered one * of its surfaces, and make keyboard focus follow if desired. * wlroots makes this a no-op if surface is already focused */ wlr_seat_pointer_notify_enter(seat, surface, sx, sy); wlr_seat_pointer_notify_motion(seat, time, sx, sy); } void printstatus(void) { Monitor *m = NULL; Client *c; unsigned int occ, urg, sel; const char *appid, *title; wl_list_for_each(m, &mons, link) { occ = urg = 0; wl_list_for_each(c, &clients, link) { if (c->mon != m) continue; occ |= c->tags; if (c->isurgent) urg |= c->tags; } if ((c = focustop(m))) { title = client_get_title(c); appid = client_get_appid(c); printf("%s title %s\n", m->wlr_output->name, title ? title : broken); printf("%s appid %s\n", m->wlr_output->name, appid ? appid : broken); printf("%s fullscreen %u\n", m->wlr_output->name, c->isfullscreen); printf("%s floating %u\n", m->wlr_output->name, c->isfloating); sel = c->tags; } else { printf("%s title \n", m->wlr_output->name); printf("%s appid \n", m->wlr_output->name); printf("%s fullscreen \n", m->wlr_output->name); printf("%s floating \n", m->wlr_output->name); sel = 0; } printf("%s selmon %u\n", m->wlr_output->name, m == selmon); printf("%s tags %u %u %u %u\n", m->wlr_output->name, occ, m->tagset[m->seltags], sel, urg); printf("%s layout %s\n", m->wlr_output->name, m->lt[m->sellt]->symbol); } fflush(stdout); } void quit(const Arg *arg) { wl_display_terminate(dpy); } void quitsignal(int signo) { quit(NULL); } void rendermon(struct wl_listener *listener, void *data) { /* This function is called every time an output is ready to display a frame, * generally at the output's refresh rate (e.g. 60Hz). */ Monitor *m = wl_container_of(listener, m, frame); Client *c; struct timespec now; /* Render if no XDG clients have an outstanding resize and are visible on * this monitor. */ wl_list_for_each(c, &clients, link) if (c->resize && !c->isfloating && client_is_rendered_on_mon(c, m) && !client_is_stopped(c)) goto skip; if (!wlr_scene_output_commit(m->scene_output)) return; skip: /* Let clients know a frame has been rendered */ clock_gettime(CLOCK_MONOTONIC, &now); wlr_scene_output_send_frame_done(m->scene_output, &now); } void requeststartdrag(struct wl_listener *listener, void *data) { struct wlr_seat_request_start_drag_event *event = data; if (wlr_seat_validate_pointer_grab_serial(seat, event->origin, event->serial)) wlr_seat_start_pointer_drag(seat, event->drag, event->serial); else wlr_data_source_destroy(event->drag->source); } void resize(Client *c, struct wlr_box geo, int interact) { struct wlr_box *bbox = interact ? &sgeom : &c->mon->w; client_set_bounds(c, geo.width, geo.height); c->geom = geo; applybounds(c, bbox); /* Update scene-graph, including borders */ wlr_scene_node_set_position(&c->scene->node, c->geom.x, c->geom.y); wlr_scene_node_set_position(&c->scene_surface->node, c->bw, c->bw); wlr_scene_rect_set_size(c->border[0], c->geom.width, c->bw); wlr_scene_rect_set_size(c->border[1], c->geom.width, c->bw); wlr_scene_rect_set_size(c->border[2], c->bw, c->geom.height - 2 * c->bw); wlr_scene_rect_set_size(c->border[3], c->bw, c->geom.height - 2 * c->bw); wlr_scene_node_set_position(&c->border[1]->node, 0, c->geom.height - c->bw); wlr_scene_node_set_position(&c->border[2]->node, 0, c->bw); wlr_scene_node_set_position(&c->border[3]->node, c->geom.width - c->bw, c->bw); /* this is a no-op if size hasn't changed */ c->resize = client_set_size(c, c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw); } void run(char *startup_cmd) { /* Add a Unix socket to the Wayland display. */ const char *socket = wl_display_add_socket_auto(dpy); struct sigaction sa = {.sa_flags = SA_RESTART, .sa_handler = SIG_IGN}; sigemptyset(&sa.sa_mask); if (!socket) die("startup: display_add_socket_auto"); setenv("WAYLAND_DISPLAY", socket, 1); /* Start the backend. This will enumerate outputs and inputs, become the DRM * master, etc */ if (!wlr_backend_start(backend)) die("startup: backend_start"); /* Now that the socket exists and the backend is started, run the startup command */ if (startup_cmd) { int piperw[2]; if (pipe(piperw) < 0) die("startup: pipe:"); if ((child_pid = fork()) < 0) die("startup: fork:"); if (child_pid == 0) { dup2(piperw[0], STDIN_FILENO); close(piperw[0]); close(piperw[1]); execl("/bin/sh", "/bin/sh", "-c", startup_cmd, NULL); die("startup: execl:"); } dup2(piperw[1], STDOUT_FILENO); close(piperw[1]); close(piperw[0]); } /* If nobody is reading the status output, don't terminate */ sigaction(SIGPIPE, &sa, NULL); printstatus(); /* At this point the outputs are initialized, choose initial selmon based on * cursor position, and set default cursor image */ selmon = xytomon(cursor->x, cursor->y); /* TODO hack to get cursor to display in its initial location (100, 100) * instead of (0, 0) and then jumping. still may not be fully * initialized, as the image/coordinates are not transformed for the * monitor when displayed here */ wlr_cursor_warp_closest(cursor, NULL, cursor->x, cursor->y); wlr_xcursor_manager_set_cursor_image(cursor_mgr, cursor_image, cursor); /* Run the Wayland event loop. This does not return until you exit the * compositor. Starting the backend rigged up all of the necessary event * loop configuration to listen to libinput events, DRM events, generate * frame events at the refresh rate, and so on. */ wl_display_run(dpy); } void setcursor(struct wl_listener *listener, void *data) { /* This event is raised by the seat when a client provides a cursor image */ struct wlr_seat_pointer_request_set_cursor_event *event = data; /* If we're "grabbing" the cursor, don't use the client's image, we will * restore it after "grabbing" sending a leave event, followed by a enter * event, which will result in the client requesting set the cursor surface */ if (cursor_mode != CurNormal && cursor_mode != CurPressed) return; cursor_image = NULL; /* This can be sent by any client, so we check to make sure this one is * actually has pointer focus first. If so, we can tell the cursor to * use the provided surface as the cursor image. It will set the * hardware cursor on the output that it's currently on and continue to * do so as the cursor moves between outputs. */ if (event->seat_client == seat->pointer_state.focused_client) wlr_cursor_set_surface(cursor, event->surface, event->hotspot_x, event->hotspot_y); } void setfloating(Client *c, int floating) { c->isfloating = floating; wlr_scene_node_reparent(&c->scene->node, layers[c->isfloating ? LyrFloat : LyrTile]); arrange(c->mon); printstatus(); } void setfullscreen(Client *c, int fullscreen) { c->isfullscreen = fullscreen; if (!c->mon) return; c->bw = fullscreen ? 0 : borderpx; client_set_fullscreen(c, fullscreen); wlr_scene_node_reparent(&c->scene->node, layers[fullscreen ? LyrFS : c->isfloating ? LyrFloat : LyrTile]); if (fullscreen) { c->prev = c->geom; resize(c, c->mon->m, 0); } else { /* restore previous size instead of arrange for floating windows since * client positions are set by the user and cannot be recalculated */ resize(c, c->prev, 0); } arrange(c->mon); printstatus(); } void setlayout(const Arg *arg) { if (!selmon) return; if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) selmon->sellt ^= 1; if (arg && arg->v) selmon->lt[selmon->sellt] = (Layout *)arg->v; /* TODO change layout symbol? */ arrange(selmon); printstatus(); } /* arg > 1.0 will set mfact absolutely */ void setmfact(const Arg *arg) { float f; if (!arg || !selmon || !selmon->lt[selmon->sellt]->arrange) return; f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; if (f < 0.1 || f > 0.9) return; selmon->mfact = f; arrange(selmon); } void setmon(Client *c, Monitor *m, unsigned int newtags) { Monitor *oldmon = c->mon; if (oldmon == m) return; c->mon = m; c->prev = c->geom; /* TODO leave/enter is not optimal but works */ if (oldmon) { wlr_surface_send_leave(client_surface(c), oldmon->wlr_output); arrange(oldmon); } if (m) { /* Make sure window actually overlaps with the monitor */ resize(c, c->geom, 0); wlr_surface_send_enter(client_surface(c), m->wlr_output); c->tags = newtags ? newtags : m->tagset[m->seltags]; /* assign tags of target monitor */ setfullscreen(c, c->isfullscreen); /* This will call arrange(c->mon) */ } focusclient(focustop(selmon), 1); } void setpsel(struct wl_listener *listener, void *data) { /* This event is raised by the seat when a client wants to set the selection, * usually when the user copies something. wlroots allows compositors to * ignore such requests if they so choose, but in dwl we always honor */ struct wlr_seat_request_set_primary_selection_event *event = data; wlr_seat_set_primary_selection(seat, event->source, event->serial); } void setsel(struct wl_listener *listener, void *data) { /* This event is raised by the seat when a client wants to set the selection, * usually when the user copies something. wlroots allows compositors to * ignore such requests if they so choose, but in dwl we always honor */ struct wlr_seat_request_set_selection_event *event = data; wlr_seat_set_selection(seat, event->source, event->serial); } void setup(void) { struct sigaction sa_term = {.sa_flags = SA_RESTART, .sa_handler = quitsignal}; struct sigaction sa_sigchld = { #ifdef XWAYLAND .sa_flags = SA_RESTART, .sa_handler = sigchld, #else .sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART, .sa_handler = SIG_IGN, #endif }; sigemptyset(&sa_term.sa_mask); sigemptyset(&sa_sigchld.sa_mask); /* The Wayland display is managed by libwayland. It handles accepting * clients from the Unix socket, manging Wayland globals, and so on. */ dpy = wl_display_create(); /* Set up signal handlers */ sigaction(SIGCHLD, &sa_sigchld, NULL); sigaction(SIGINT, &sa_term, NULL); sigaction(SIGTERM, &sa_term, NULL); /* The backend is a wlroots feature which abstracts the underlying input and * output hardware. The autocreate option will choose the most suitable * backend based on the current environment, such as opening an X11 window * if an X11 server is running. The NULL argument here optionally allows you * to pass in a custom renderer if wlr_renderer doesn't meet your needs. The * backend uses the renderer, for example, to fall back to software cursors * if the backend does not support hardware cursors (some older GPUs * don't). */ if (!(backend = wlr_backend_autocreate(dpy))) die("couldn't create backend"); /* Initialize the scene graph used to lay out windows */ scene = wlr_scene_create(); layers[LyrBg] = wlr_scene_tree_create(&scene->tree); layers[LyrBottom] = wlr_scene_tree_create(&scene->tree); layers[LyrTile] = wlr_scene_tree_create(&scene->tree); layers[LyrFloat] = wlr_scene_tree_create(&scene->tree); layers[LyrFS] = wlr_scene_tree_create(&scene->tree); layers[LyrTop] = wlr_scene_tree_create(&scene->tree); layers[LyrOverlay] = wlr_scene_tree_create(&scene->tree); layers[LyrDragIcon] = wlr_scene_tree_create(&scene->tree); layers[LyrBlock] = wlr_scene_tree_create(&scene->tree); /* Create a renderer with the default implementation */ if (!(drw = wlr_renderer_autocreate(backend))) die("couldn't create renderer"); wlr_renderer_init_wl_display(drw, dpy); /* Create a default allocator */ if (!(alloc = wlr_allocator_autocreate(backend, drw))) die("couldn't create allocator"); /* This creates some hands-off wlroots interfaces. The compositor is * necessary for clients to allocate surfaces and the data device manager * handles the clipboard. Each of these wlroots interfaces has room for you * to dig your fingers in and play with their behavior if you want. Note that * the clients cannot set the selection directly without compositor approval, * see the setsel() function. */ compositor = wlr_compositor_create(dpy, drw); wlr_export_dmabuf_manager_v1_create(dpy); wlr_screencopy_manager_v1_create(dpy); wlr_data_control_manager_v1_create(dpy); wlr_data_device_manager_create(dpy); wlr_gamma_control_manager_v1_create(dpy); wlr_primary_selection_v1_device_manager_create(dpy); wlr_viewporter_create(dpy); wlr_single_pixel_buffer_manager_v1_create(dpy); wlr_subcompositor_create(dpy); /* Initializes the interface used to implement urgency hints */ activation = wlr_xdg_activation_v1_create(dpy); wl_signal_add(&activation->events.request_activate, &request_activate); /* Creates an output layout, which a wlroots utility for working with an * arrangement of screens in a physical layout. */ output_layout = wlr_output_layout_create(); wl_signal_add(&output_layout->events.change, &layout_change); wlr_xdg_output_manager_v1_create(dpy, output_layout); /* Configure a listener to be notified when new outputs are available on the * backend. */ wl_list_init(&mons); wl_signal_add(&backend->events.new_output, &new_output); /* Set up our client lists and the xdg-shell. The xdg-shell is a * Wayland protocol which is used for application windows. For more * detail on shells, refer to the article: * * https://drewdevault.com/2018/07/29/Wayland-shells.html */ wl_list_init(&clients); wl_list_init(&fstack); idle = wlr_idle_create(dpy); idle_notifier = wlr_idle_notifier_v1_create(dpy); idle_inhibit_mgr = wlr_idle_inhibit_v1_create(dpy); wl_signal_add(&idle_inhibit_mgr->events.new_inhibitor, &idle_inhibitor_create); layer_shell = wlr_layer_shell_v1_create(dpy); wl_signal_add(&layer_shell->events.new_surface, &new_layer_shell_surface); xdg_shell = wlr_xdg_shell_create(dpy, 4); wl_signal_add(&xdg_shell->events.new_surface, &new_xdg_surface); input_inhibit_mgr = wlr_input_inhibit_manager_create(dpy); session_lock_mgr = wlr_session_lock_manager_v1_create(dpy); wl_signal_add(&session_lock_mgr->events.new_lock, &session_lock_create_lock); wl_signal_add(&session_lock_mgr->events.destroy, &session_lock_mgr_destroy); locked_bg = wlr_scene_rect_create(layers[LyrBlock], sgeom.width, sgeom.height, (float [4]){0.1, 0.1, 0.1, 1.0}); wlr_scene_node_set_enabled(&locked_bg->node, 0); /* Use decoration protocols to negotiate server-side decorations */ wlr_server_decoration_manager_set_default_mode( wlr_server_decoration_manager_create(dpy), WLR_SERVER_DECORATION_MANAGER_MODE_SERVER); xdg_decoration_mgr = wlr_xdg_decoration_manager_v1_create(dpy); wl_signal_add(&xdg_decoration_mgr->events.new_toplevel_decoration, &new_xdg_decoration); /* * Creates a cursor, which is a wlroots utility for tracking the cursor * image shown on screen. */ cursor = wlr_cursor_create(); wlr_cursor_attach_output_layout(cursor, output_layout); /* Creates an xcursor manager, another wlroots utility which loads up * Xcursor themes to source cursor images from and makes sure that cursor * images are available at all scale factors on the screen (necessary for * HiDPI support). Scaled cursors will be loaded with each output. */ cursor_mgr = wlr_xcursor_manager_create(NULL, 24); /* * wlr_cursor *only* displays an image on screen. It does not move around * when the pointer moves. However, we can attach input devices to it, and * it will generate aggregate events for all of them. In these events, we * can choose how we want to process them, forwarding them to clients and * moving the cursor around. More detail on this process is described in my * input handling blog post: * * https://drewdevault.com/2018/07/17/Input-handling-in-wlroots.html * * And more comments are sprinkled throughout the notify functions above. */ wl_signal_add(&cursor->events.motion, &cursor_motion); wl_signal_add(&cursor->events.motion_absolute, &cursor_motion_absolute); wl_signal_add(&cursor->events.button, &cursor_button); wl_signal_add(&cursor->events.axis, &cursor_axis); wl_signal_add(&cursor->events.frame, &cursor_frame); /* * Configures a seat, which is a single "seat" at which a user sits and * operates the computer. This conceptually includes up to one keyboard, * pointer, touch, and drawing tablet device. We also rig up a listener to * let us know when new input devices are available on the backend. */ wl_list_init(&keyboards); wl_signal_add(&backend->events.new_input, &new_input); virtual_keyboard_mgr = wlr_virtual_keyboard_manager_v1_create(dpy); wl_signal_add(&virtual_keyboard_mgr->events.new_virtual_keyboard, &new_virtual_keyboard); seat = wlr_seat_create(dpy, "seat0"); wl_signal_add(&seat->events.request_set_cursor, &request_cursor); wl_signal_add(&seat->events.request_set_selection, &request_set_sel); wl_signal_add(&seat->events.request_set_primary_selection, &request_set_psel); wl_signal_add(&seat->events.request_start_drag, &request_start_drag); wl_signal_add(&seat->events.start_drag, &start_drag); output_mgr = wlr_output_manager_v1_create(dpy); wl_signal_add(&output_mgr->events.apply, &output_mgr_apply); wl_signal_add(&output_mgr->events.test, &output_mgr_test); wlr_scene_set_presentation(scene, wlr_presentation_create(dpy, backend)); #ifdef XWAYLAND /* * Initialise the XWayland X server. * It will be started when the first X client is started. */ xwayland = wlr_xwayland_create(dpy, compositor, 1); if (xwayland) { wl_signal_add(&xwayland->events.ready, &xwayland_ready); wl_signal_add(&xwayland->events.new_surface, &new_xwayland_surface); setenv("DISPLAY", xwayland->display_name, 1); } else { fprintf(stderr, "failed to setup XWayland X server, continuing without it\n"); } #endif } void spawn(const Arg *arg) { if (fork() == 0) { dup2(STDERR_FILENO, STDOUT_FILENO); setsid(); execvp(((char **)arg->v)[0], (char **)arg->v); die("dwl: execvp %s failed:", ((char **)arg->v)[0]); } } void startdrag(struct wl_listener *listener, void *data) { struct wlr_drag *drag = data; if (!drag->icon) return; drag->icon->data = wlr_scene_subsurface_tree_create(layers[LyrDragIcon], drag->icon->surface); motionnotify(0); wl_signal_add(&drag->icon->events.destroy, &drag_icon_destroy); } void tag(const Arg *arg) { Client *sel = focustop(selmon); if (sel && arg->ui & TAGMASK) { sel->tags = arg->ui & TAGMASK; focusclient(focustop(selmon), 1); arrange(selmon); } printstatus(); } void tagmon(const Arg *arg) { Client *sel = focustop(selmon); if (sel) setmon(sel, dirtomon(arg->i), 0); } void tile(Monitor *m) { unsigned int i, n = 0, mw, my, ty; Client *c; wl_list_for_each(c, &clients, link) if (VISIBLEON(c, m) && !c->isfloating && !c->isfullscreen) n++; if (n == 0) return; if (n > m->nmaster) mw = m->nmaster ? m->w.width * m->mfact : 0; else mw = m->w.width; i = my = ty = 0; wl_list_for_each(c, &clients, link) { if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen) continue; if (i < m->nmaster) { resize(c, (struct wlr_box){.x = m->w.x, .y = m->w.y + my, .width = mw, .height = (m->w.height - my) / (MIN(n, m->nmaster) - i)}, 0); my += c->geom.height; } else { resize(c, (struct wlr_box){.x = m->w.x + mw, .y = m->w.y + ty, .width = m->w.width - mw, .height = (m->w.height - ty) / (n - i)}, 0); ty += c->geom.height; } i++; } } void togglefloating(const Arg *arg) { Client *sel = focustop(selmon); /* return if fullscreen */ if (sel && !sel->isfullscreen) setfloating(sel, !sel->isfloating); } void togglefullscreen(const Arg *arg) { Client *sel = focustop(selmon); if (sel) setfullscreen(sel, !sel->isfullscreen); } void toggletag(const Arg *arg) { unsigned int newtags; Client *sel = focustop(selmon); if (!sel) return; newtags = sel->tags ^ (arg->ui & TAGMASK); if (newtags) { sel->tags = newtags; focusclient(focustop(selmon), 1); arrange(selmon); } printstatus(); } void toggleview(const Arg *arg) { unsigned int newtagset = selmon ? selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK) : 0; if (newtagset) { selmon->tagset[selmon->seltags] = newtagset; focusclient(focustop(selmon), 1); arrange(selmon); } printstatus(); } void unlocksession(struct wl_listener *listener, void *data) { SessionLock *lock = wl_container_of(listener, lock, unlock); destroylock(lock, 1); } void unmaplayersurfacenotify(struct wl_listener *listener, void *data) { LayerSurface *layersurface = wl_container_of(listener, layersurface, unmap); layersurface->mapped = 0; wlr_scene_node_set_enabled(&layersurface->scene->node, 0); if (layersurface == exclusive_focus) exclusive_focus = NULL; if (layersurface->layer_surface->output && (layersurface->mon = layersurface->layer_surface->output->data)) arrangelayers(layersurface->mon); if (layersurface->layer_surface->surface == seat->keyboard_state.focused_surface) focusclient(focustop(selmon), 1); motionnotify(0); } void unmapnotify(struct wl_listener *listener, void *data) { /* Called when the surface is unmapped, and should no longer be shown. */ Client *c = wl_container_of(listener, c, unmap); if (c == grabc) { cursor_mode = CurNormal; grabc = NULL; } if (c->swallowing) { c->swallowing->swallowedby = NULL; c->swallowing = NULL; } if (c->swallowedby) { setfullscreen(c->swallowedby, 0); swallow(c->swallowedby, c); c->swallowedby->swallowing = NULL; c->swallowedby = NULL; } if (client_is_unmanaged(c)) { if (c == exclusive_focus) exclusive_focus = NULL; if (client_surface(c) == seat->keyboard_state.focused_surface) focusclient(focustop(selmon), 1); } else { wl_list_remove(&c->link); setmon(c, NULL, 0); wl_list_remove(&c->flink); } wl_list_remove(&c->commit.link); wlr_scene_node_destroy(&c->scene->node); printstatus(); motionnotify(0); } void updatemons(struct wl_listener *listener, void *data) { /* * Called whenever the output layout changes: adding or removing a * monitor, changing an output's mode or position, etc. This is where * the change officially happens and we update geometry, window * positions, focus, and the stored configuration in wlroots' * output-manager implementation. */ struct wlr_output_configuration_v1 *config = wlr_output_configuration_v1_create(); Client *c; struct wlr_output_configuration_head_v1 *config_head; Monitor *m; /* First remove from the layout the disabled monitors */ wl_list_for_each(m, &mons, link) { if (m->wlr_output->enabled) continue; config_head = wlr_output_configuration_head_v1_create(config, m->wlr_output); config_head->state.enabled = 0; /* Remove this output from the layout to avoid cursor enter inside it */ wlr_output_layout_remove(output_layout, m->wlr_output); closemon(m); memset(&m->m, 0, sizeof(m->m)); memset(&m->w, 0, sizeof(m->w)); } /* Insert outputs that need to */ wl_list_for_each(m, &mons, link) if (m->wlr_output->enabled && !wlr_output_layout_get(output_layout, m->wlr_output)) wlr_output_layout_add_auto(output_layout, m->wlr_output); /* Now that we update the output layout we can get its box */ wlr_output_layout_get_box(output_layout, NULL, &sgeom); /* Make sure the clients are hidden when dwl is locked */ wlr_scene_node_set_position(&locked_bg->node, sgeom.x, sgeom.y); wlr_scene_rect_set_size(locked_bg, sgeom.width, sgeom.height); wl_list_for_each(m, &mons, link) { if (!m->wlr_output->enabled) continue; config_head = wlr_output_configuration_head_v1_create(config, m->wlr_output); /* Get the effective monitor geometry to use for surfaces */ wlr_output_layout_get_box(output_layout, m->wlr_output, &(m->m)); wlr_output_layout_get_box(output_layout, m->wlr_output, &(m->w)); wlr_scene_output_set_position(m->scene_output, m->m.x, m->m.y); wlr_scene_node_set_position(&m->fullscreen_bg->node, m->m.x, m->m.y); wlr_scene_rect_set_size(m->fullscreen_bg, m->m.width, m->m.height); if (m->lock_surface) { struct wlr_scene_tree *scene_tree = m->lock_surface->surface->data; wlr_scene_node_set_position(&scene_tree->node, m->m.x, m->m.y); wlr_session_lock_surface_v1_configure(m->lock_surface, m->m.width, m->m.height); } /* Calculate the effective monitor geometry to use for clients */ arrangelayers(m); /* Don't move clients to the left output when plugging monitors */ arrange(m); config_head->state.enabled = 1; config_head->state.mode = m->wlr_output->current_mode; config_head->state.x = m->m.x; config_head->state.y = m->m.y; } if (selmon && selmon->wlr_output->enabled) { wl_list_for_each(c, &clients, link) if (!c->mon && client_is_mapped(c)) setmon(c, selmon, c->tags); if (selmon->lock_surface) client_notify_enter(selmon->lock_surface->surface, wlr_seat_get_keyboard(seat)); } wlr_output_manager_v1_set_configuration(output_mgr, config); } void updatetitle(struct wl_listener *listener, void *data) { Client *c = wl_container_of(listener, c, set_title); if (c == focustop(c->mon)) printstatus(); } void urgent(struct wl_listener *listener, void *data) { struct wlr_xdg_activation_v1_request_activate_event *event = data; Client *c = NULL; toplevel_from_wlr_surface(event->surface, &c, NULL); if (c && c != focustop(selmon)) { c->isurgent = 1; printstatus(); } } void view(const Arg *arg) { if (!selmon || (arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) return; selmon->seltags ^= 1; /* toggle sel tagset */ if (arg->ui & TAGMASK) selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; focusclient(focustop(selmon), 1); arrange(selmon); printstatus(); } void virtualkeyboard(struct wl_listener *listener, void *data) { struct wlr_virtual_keyboard_v1 *keyboard = data; createkeyboard(&keyboard->keyboard); } Monitor * xytomon(double x, double y) { struct wlr_output *o = wlr_output_layout_output_at(output_layout, x, y); return o ? o->data : NULL; } struct wlr_scene_node * xytonode(double x, double y, struct wlr_surface **psurface, Client **pc, LayerSurface **pl, double *nx, double *ny) { struct wlr_scene_node *node, *pnode; struct wlr_surface *surface = NULL; Client *c = NULL; LayerSurface *l = NULL; const int *layer; int focus_order[] = { LyrBlock, LyrOverlay, LyrTop, LyrFS, LyrFloat, LyrTile, LyrBottom, LyrBg }; for (layer = focus_order; layer < END(focus_order); layer++) { if ((node = wlr_scene_node_at(&layers[*layer]->node, x, y, nx, ny))) { if (node->type == WLR_SCENE_NODE_BUFFER) surface = wlr_scene_surface_from_buffer( wlr_scene_buffer_from_node(node))->surface; /* Walk the tree to find a node that knows the client */ for (pnode = node; pnode && !c; pnode = &pnode->parent->node) c = pnode->data; if (c && c->type == LayerShell) { c = NULL; l = pnode->data; } } if (surface) break; } if (psurface) *psurface = surface; if (pc) *pc = c; if (pl) *pl = l; return node; } void zoom(const Arg *arg) { Client *c, *sel = focustop(selmon); if (!sel || !selmon || !selmon->lt[selmon->sellt]->arrange || sel->isfloating) return; /* Search for the first tiled window that is not sel, marking sel as * NULL if we pass it along the way */ wl_list_for_each(c, &clients, link) if (VISIBLEON(c, selmon) && !c->isfloating) { if (c != sel) break; sel = NULL; } /* Return if no other tiled window was found */ if (&c->link == &clients) return; /* If we passed sel, move c to the front; otherwise, move sel to the * front */ if (!sel) sel = c; wl_list_remove(&sel->link); wl_list_insert(&clients, &sel->link); focusclient(sel, 1); arrange(selmon); } #ifdef XWAYLAND void activatex11(struct wl_listener *listener, void *data) { Client *c = wl_container_of(listener, c, activate); /* Only "managed" windows can be activated */ if (c->type == X11Managed) wlr_xwayland_surface_activate(c->surface.xwayland, 1); } void configurex11(struct wl_listener *listener, void *data) { Client *c = wl_container_of(listener, c, configure); struct wlr_xwayland_surface_configure_event *event = data; if (!c->mon) return; if (c->isfloating || c->type == X11Unmanaged) resize(c, (struct wlr_box){.x = event->x, .y = event->y, .width = event->width, .height = event->height}, 0); else arrange(c->mon); } void createnotifyx11(struct wl_listener *listener, void *data) { struct wlr_xwayland_surface *xsurface = data; Client *c; /* Allocate a Client for this surface */ c = xsurface->data = ecalloc(1, sizeof(*c)); c->surface.xwayland = xsurface; c->type = xsurface->override_redirect ? X11Unmanaged : X11Managed; c->bw = borderpx; /* Listen to the various events it can emit */ LISTEN(&xsurface->events.map, &c->map, mapnotify); LISTEN(&xsurface->events.unmap, &c->unmap, unmapnotify); LISTEN(&xsurface->events.request_activate, &c->activate, activatex11); LISTEN(&xsurface->events.request_configure, &c->configure, configurex11); LISTEN(&xsurface->events.set_hints, &c->set_hints, sethints); LISTEN(&xsurface->events.set_title, &c->set_title, updatetitle); LISTEN(&xsurface->events.destroy, &c->destroy, destroynotify); LISTEN(&xsurface->events.request_fullscreen, &c->fullscreen, fullscreennotify); } Atom getatom(xcb_connection_t *xc, const char *name) { Atom atom = 0; xcb_intern_atom_reply_t *reply; xcb_intern_atom_cookie_t cookie = xcb_intern_atom(xc, 0, strlen(name), name); if ((reply = xcb_intern_atom_reply(xc, cookie, NULL))) atom = reply->atom; free(reply); return atom; } void sethints(struct wl_listener *listener, void *data) { Client *c = wl_container_of(listener, c, set_hints); if (c != focustop(selmon)) { c->isurgent = xcb_icccm_wm_hints_get_urgency(c->surface.xwayland->hints); printstatus(); } } void sigchld(int unused) { siginfo_t in; /* We should be able to remove this function in favor of a simple * struct sigaction sa = {.sa_handler = SIG_IGN}; * sigaction(SIGCHLD, &sa, NULL); * but the Xwayland implementation in wlroots currently prevents us from * setting our own disposition for SIGCHLD. */ /* WNOWAIT leaves the child in a waitable state, in case this is the * XWayland process */ while (!waitid(P_ALL, 0, &in, WEXITED|WNOHANG|WNOWAIT) && in.si_pid && (!xwayland || in.si_pid != xwayland->server->pid)) waitpid(in.si_pid, NULL, 0); } void xwaylandready(struct wl_listener *listener, void *data) { struct wlr_xcursor *xcursor; xcb_connection_t *xc = xcb_connect(xwayland->display_name, NULL); int err = xcb_connection_has_error(xc); if (err) { fprintf(stderr, "xcb_connect to X server failed with code %d\n. Continuing with degraded functionality.\n", err); return; } /* Collect atoms we are interested in. If getatom returns 0, we will * not detect that window type. */ netatom[NetWMWindowTypeDialog] = getatom(xc, "_NET_WM_WINDOW_TYPE_DIALOG"); netatom[NetWMWindowTypeSplash] = getatom(xc, "_NET_WM_WINDOW_TYPE_SPLASH"); netatom[NetWMWindowTypeToolbar] = getatom(xc, "_NET_WM_WINDOW_TYPE_TOOLBAR"); netatom[NetWMWindowTypeUtility] = getatom(xc, "_NET_WM_WINDOW_TYPE_UTILITY"); /* assign the one and only seat */ wlr_xwayland_set_seat(xwayland, seat); /* Set the default XWayland cursor to match the rest of dwl. */ if ((xcursor = wlr_xcursor_manager_get_xcursor(cursor_mgr, "left_ptr", 1))) wlr_xwayland_set_cursor(xwayland, xcursor->images[0]->buffer, xcursor->images[0]->width * 4, xcursor->images[0]->width, xcursor->images[0]->height, xcursor->images[0]->hotspot_x, xcursor->images[0]->hotspot_y); xcb_disconnect(xc); } #endif int main(int argc, char *argv[]) { char *startup_cmd = NULL; int c; while ((c = getopt(argc, argv, "s:hv")) != -1) { if (c == 's') startup_cmd = optarg; else if (c == 'v') die("dwl " VERSION); else goto usage; } if (optind < argc) goto usage; /* Wayland requires XDG_RUNTIME_DIR for creating its communications socket */ if (!getenv("XDG_RUNTIME_DIR")) die("XDG_RUNTIME_DIR must be set"); setup(); run(startup_cmd); cleanup(); return EXIT_SUCCESS; usage: die("Usage: %s [-v] [-s startup command]", argv[0]); }