dwl/dwl.c
2023-04-13 23:19:37 +03:00

3172 lines
99 KiB
C

/*
* See LICENSE file for copyright and license details.
*/
#include <getopt.h>
#include <libinput.h>
#include <limits.h>
#include <linux/input-event-codes.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/backend.h>
#include <wlr/backend/libinput.h>
#include <wlr/render/allocator.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_data_control_v1.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_export_dmabuf_v1.h>
#include <wlr/types/wlr_gamma_control_v1.h>
#include <wlr/types/wlr_idle.h>
#include <wlr/types/wlr_idle_inhibit_v1.h>
#include <wlr/types/wlr_idle_notify_v1.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_input_inhibitor.h>
#include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_layer_shell_v1.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output_management_v1.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/types/wlr_presentation_time.h>
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_server_decoration.h>
#include <wlr/types/wlr_session_lock_v1.h>
#include <wlr/types/wlr_single_pixel_buffer_v1.h>
#include <wlr/types/wlr_subcompositor.h>
#include <wlr/types/wlr_viewporter.h>
#include <wlr/types/wlr_virtual_keyboard_v1.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/types/wlr_xdg_activation_v1.h>
#include <wlr/types/wlr_xdg_decoration_v1.h>
#include <wlr/types/wlr_xdg_output_v1.h>
#include <wlr/types/wlr_xdg_shell.h>
#include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h>
#ifdef XWAYLAND
#include <wlr/xwayland.h>
#include <X11/Xlib.h>
#include <xcb/xcb_icccm.h>
#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] || (C)->issticky))
#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 Pertag Pertag;
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, issticky;
char scratchkey;
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];
Pertag *pertag;
int gappih; /* horizontal gap between windows */
int gappiv; /* vertical gap between windows */
int gappoh; /* horizontal outer gaps */
int gappov; /* vertical outer gaps */
unsigned int seltags;
unsigned int sellt;
unsigned int tagset[2];
double mfact;
int nmaster;
char ltsymbol[16];
};
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;
const char scratchkey;
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 autostartexec(void);
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 focusmaster(const Arg *arg);
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 handlecursoractivity(bool restore_focus);
static int hidecursor(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 movestack(const Arg *arg);
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 sigchld(int unused);
static void spawn(const Arg *arg);
static void spawnscratch(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 togglefloating(const Arg *arg);
static void togglesticky(const Arg *arg);
static void togglefullscreen(const Arg *arg);
static void togglescratch(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 wl_event_source *hide_source;
static bool cursor_hidden = false;
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;
static const struct xkb_rule_names en_rules = {.layout = "us"};
static struct xkb_context *en_context;
static struct xkb_keymap *en_keymap;
static struct xkb_state *en_state;
/* 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 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"
struct Pertag {
unsigned int curtag, prevtag; /* current and previous tag */
int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes */
};
/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
static pid_t *autostart_pids;
static size_t autostart_len;
/* 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 them max size to INT_MAX, which does not violates
* the protocol but its innecesary, they can set them 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
autostartexec(void) {
const char *const *p;
size_t i = 0;
/* count entries */
for (p = autostart; *p; autostart_len++, p++)
while (*++p);
autostart_pids = calloc(autostart_len, sizeof(pid_t));
for (p = autostart; *p; i++, p++) {
if ((autostart_pids[i] = fork()) == 0) {
setsid();
execvp(*p, (char *const *)p);
die("dwl: execvp %s:", *p);
}
/* skip arguments */
while (*++p);
}
}
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);
c->scratchkey = 0;
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->scratchkey = r->scratchkey;
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;
}
}
c->geom.x = (mon->w.width - c->geom.width) / 2 + mon->m.x;
c->geom.y = (mon->w.height - c->geom.height) / 2 + mon->m.y;
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);
strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, LENGTH(m->ltsymbol));
if (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;
handlecursoractivity(true);
/* 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;
handlecursoractivity(true);
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, unused_lx, unused_ly;
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
|| wlr_scene_node_coords(&tree->node, &unused_lx, &unused_ly)))) {
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);
xkb_state_unref(en_state);
xkb_keymap_unref(en_keymap);
xkb_context_unref(en_context);
}
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->gappih = gappih;
m->gappiv = gappiv;
m->gappoh = gappoh;
m->gappov = gappov;
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();
m->pertag = calloc(1, sizeof(Pertag));
m->pertag->curtag = m->pertag->prevtag = 1;
for (i = 0; i <= LENGTH(tags); i++) {
m->pertag->nmasters[i] = m->nmaster;
m->pertag->mfacts[i] = m->mfact;
m->pertag->ltidxs[i][0] = m->lt[0];
m->pertag->ltidxs[i][1] = m->lt[1];
m->pertag->sellts[i] = m->sellt;
}
/* 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);
strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, LENGTH(m->ltsymbol));
}
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, unused_lx, unused_ly;
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 && wlr_scene_node_coords(&l->scene->node, &unused_lx, &unused_ly)
&& 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
focusmaster(const Arg *arg)
{
Client *c;
c = wl_container_of(clients.next, c, link);
focusclient(c, 0);
}
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));
}
void
handlecursoractivity(bool restore_focus)
{
wl_event_source_timer_update(hide_source, cursor_timeout * 1000);
if (cursor_hidden) {
wlr_xcursor_manager_set_cursor_image(cursor_mgr, "left_ptr", cursor);
cursor_hidden = false;
if (restore_focus)
motionnotify(0);
}
}
int
hidecursor(void *data)
{
wlr_cursor_set_image(cursor, NULL, 0, 0, 0, 0, 0, 0);
wlr_seat_pointer_notify_clear_focus(seat);
cursor_hidden = true;
return 1;
}
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 = selmon->pertag->nmasters[selmon->pertag->curtag] = 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(
en_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, *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. */
if (clients.prev)
// tile at the bottom
wl_list_insert(clients.prev, &c->link);
else
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) {
Client *p = termforwin(c);
if (p) {
c->swallowedby = p;
p->swallowing = c;
wl_list_remove(&c->link);
wl_list_remove(&c->flink);
swallow(c,p);
wl_list_remove(&p->link);
wl_list_remove(&p->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;
int n = 0;
wl_list_for_each(c, &clients, link) {
if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
continue;
resize(c, m->w, 0);
n++;
}
if (n)
snprintf(m->ltsymbol, LENGTH(m->ltsymbol), "[%d]", n);
if ((c = focustop(m)))
wlr_scene_node_raise_to_top(&c->scene->node);
}
void
movestack(const Arg *arg)
{
Client *c;
Client *sel = focustop(selmon);
if (wl_list_length(&clients) <= 1) {
return;
}
if (arg->i > 0) {
wl_list_for_each(c, &sel->link, link) {
if (VISIBLEON(c, selmon) || &c->link == &clients) {
break; /* found it */
}
}
} else {
wl_list_for_each_reverse(c, &sel->link, link) {
if (VISIBLEON(c, selmon) || &c->link == &clients) {
break; /* found it */
}
}
/* backup one client */
c = wl_container_of(c->link.prev, c, link);
}
wl_list_remove(&sel->link);
wl_list_insert(&c->link, &sel->link);
arrange(selmon);
}
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;
handlecursoractivity(false);
/* 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.
* Don't show the cursor when calling motionnotify(0) to restore pointer focus. */
if (!cursor_hidden)
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->ltsymbol);
}
fflush(stdout);
}
void
quit(const Arg *arg)
{
size_t i;
/* kill child processes */
for (i = 0; i < autostart_len; i++) {
if (0 < autostart_pids[i]) {
kill(autostart_pids[i], SIGTERM);
waitpid(autostart_pids[i], NULL, 0);
}
}
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 */
autostartexec();
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);
handlecursoractivity(false);
/* 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 = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
if (arg && arg->v)
selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
/* TODO change layout symbol? */
strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, LENGTH(selmon->ltsymbol));
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 = selmon->pertag->mfacts[selmon->pertag->curtag] = 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);
/* Make dwl a subreaper */
prctl(PR_SET_CHILD_SUBREAPER, 1);
/* 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</