dwl/dwl.c

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/*
* See LICENSE file for copyright and license details.
*/
#define _POSIX_C_SOURCE 200809L
#include <getopt.h>
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#include <libinput.h>
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#include <linux/input-event-codes.h>
#include <signal.h>
#include <stdio.h>
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#include <stdlib.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/backend.h>
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#include <wlr/backend/libinput.h>
#include <wlr/render/allocator.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_data_control_v1.h>
#include <wlr/types/wlr_data_device.h>
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#include <wlr/types/wlr_export_dmabuf_v1.h>
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#include <wlr/types/wlr_gamma_control_v1.h>
#include <wlr/types/wlr_idle.h>
#include <wlr/types/wlr_idle_inhibit_v1.h>
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#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_input_inhibitor.h>
#include <wlr/types/wlr_keyboard.h>
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#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>
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#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_scene.h>
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#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_server_decoration.h>
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#include <wlr/types/wlr_viewporter.h>
#include <wlr/types/wlr_virtual_keyboard_v1.h>
#include <wlr/types/wlr_xcursor_manager.h>
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#include <wlr/types/wlr_xdg_activation_v1.h>
#include <wlr/types/wlr_xdg_decoration_v1.h>
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#include <wlr/types/wlr_xdg_output_v1.h>
#include <wlr/types/wlr_xdg_shell.h>
#include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h>
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#ifdef XWAYLAND
#include <X11/Xlib.h>
#include <wlr/xwayland.h>
#endif
#include "util.h"
/* macros */
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#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define MIN(A, B) ((A) < (B) ? (A) : (B))
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#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])
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#define END(A) ((A) + LENGTH(A))
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#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define LISTEN(E, L, H) wl_signal_add((E), ((L)->notify = (H), (L)))
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/* enums */
enum { CurNormal, CurMove, CurResize }; /* cursor */
enum { XDGShell, LayerShell, X11Managed, X11Unmanaged }; /* client types */
enum { LyrBg, LyrBottom, LyrTop, LyrOverlay, LyrTile, LyrFloat, LyrNoFocus, NUM_LAYERS }; /* scene layers */
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#ifdef XWAYLAND
enum { NetWMWindowTypeDialog, NetWMWindowTypeSplash, NetWMWindowTypeToolbar,
NetWMWindowTypeUtility, NetLast }; /* EWMH atoms */
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#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 {
/* Must be first */
unsigned int type; /* XDGShell or X11* */
struct wlr_scene_node *scene;
struct wlr_scene_rect *border[4]; /* top, bottom, left, right */
struct wlr_scene_node *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 unmap;
struct wl_listener destroy;
struct wl_listener set_title;
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struct wl_listener fullscreen;
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struct wlr_box geom, prev; /* layout-relative, includes border */
Monitor *mon;
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#ifdef XWAYLAND
struct wl_listener activate;
struct wl_listener configure;
struct wl_listener set_hints;
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#endif
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int bw;
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unsigned int tags;
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int isfloating, isurgent;
uint32_t resize; /* configure serial of a pending resize */
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int isfullscreen;
} Client;
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typedef struct {
uint32_t singular_anchor;
uint32_t anchor_triplet;
int *positive_axis;
int *negative_axis;
int margin;
} Edge;
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_input_device *device;
struct wl_listener modifiers;
struct wl_listener key;
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struct wl_listener destroy;
} Keyboard;
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typedef struct {
/* Must be first */
unsigned int type; /* LayerShell */
int mapped;
struct wlr_scene_node *scene;
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struct wl_list link;
struct wlr_layer_surface_v1 *layer_surface;
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struct wl_listener destroy;
struct wl_listener map;
struct wl_listener unmap;
struct wl_listener surface_commit;
struct wlr_box geo;
} LayerSurface;
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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 wl_listener frame;
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struct wl_listener destroy;
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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];
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unsigned int seltags;
unsigned int sellt;
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unsigned int tagset[2];
double mfact;
int nmaster;
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int un_map; /* If a map/unmap happened on this monitor, then this should be true */
};
typedef struct {
const char *name;
float mfact;
int nmaster;
float scale;
const Layout *lt;
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enum wl_output_transform rr;
} MonitorRule;
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typedef struct {
const char *id;
const char *title;
unsigned int tags;
int isfloating;
int monitor;
} Rule;
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/* function declarations */
static void applybounds(Client *c, struct wlr_box *bbox);
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static void applyexclusive(struct wlr_box *usable_area, uint32_t anchor,
int32_t exclusive, int32_t margin_top, int32_t margin_right,
int32_t margin_bottom, int32_t margin_left);
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static void applyrules(Client *c);
static void arrange(Monitor *m);
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static void arrangelayer(Monitor *m, struct wl_list *list,
struct wlr_box *usable_area, int exclusive);
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static void arrangelayers(Monitor *m);
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static void axisnotify(struct wl_listener *listener, void *data);
static void buttonpress(struct wl_listener *listener, void *data);
static void chvt(const Arg *arg);
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static void cleanup(void);
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static void cleanupkeyboard(struct wl_listener *listener, void *data);
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static void cleanupmon(struct wl_listener *listener, void *data);
static void closemon(Monitor *m);
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static void commitlayersurfacenotify(struct wl_listener *listener, void *data);
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static void commitnotify(struct wl_listener *listener, void *data);
static void createidleinhibitor(struct wl_listener *listener, void *data);
static void createkeyboard(struct wlr_input_device *device);
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static void createlayersurface(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_input_device *device);
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static void cursorframe(struct wl_listener *listener, void *data);
static void destroyidleinhibitor(struct wl_listener *listener, void *data);
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static void destroylayersurfacenotify(struct wl_listener *listener, void *data);
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static void destroynotify(struct wl_listener *listener, void *data);
static Monitor *dirtomon(enum wlr_direction dir);
static void dragicondestroy(struct wl_listener *listener, void *data);
static void focusclient(Client *c, int lift);
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static void focusmon(const Arg *arg);
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static void focusstack(const Arg *arg);
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static Client *focustop(Monitor *m);
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static void fullscreennotify(struct wl_listener *listener, void *data);
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static void incnmaster(const Arg *arg);
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static void inputdevice(struct wl_listener *listener, void *data);
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static int keybinding(uint32_t mods, xkb_keysym_t sym);
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static void keypress(struct wl_listener *listener, void *data);
static void keypressmod(struct wl_listener *listener, void *data);
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static void killclient(const Arg *arg);
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static void maplayersurfacenotify(struct wl_listener *listener, void *data);
static void mapnotify(struct wl_listener *listener, void *data);
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static void monocle(Monitor *m);
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static void motionabsolute(struct wl_listener *listener, void *data);
static void motionnotify(uint32_t time);
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static void motionrelative(struct wl_listener *listener, void *data);
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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);
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static void pointerfocus(Client *c, struct wlr_surface *surface,
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double sx, double sy, uint32_t time);
static void printstatus(void);
static void quit(const Arg *arg);
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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, int x, int y, int w, int h, int interact);
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static void run(char *startup_cmd);
static Client *selclient(void);
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static void setcursor(struct wl_listener *listener, void *data);
static void setfloating(Client *c, int floating);
static void setfullscreen(Client *c, int fullscreen);
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static void setlayout(const Arg *arg);
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static void setmfact(const Arg *arg);
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static void setmon(Client *c, Monitor *m, unsigned int newtags);
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static void setpsel(struct wl_listener *listener, void *data);
static void setsel(struct wl_listener *listener, void *data);
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static void setup(void);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void startdrag(struct wl_listener *listener, void *data);
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static void tag(const Arg *arg);
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static void tagmon(const Arg *arg);
static void tile(Monitor *m);
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static void togglefloating(const Arg *arg);
static void togglefullscreen(const Arg *arg);
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static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
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static void unmaplayersurface(LayerSurface *layersurface);
static void unmaplayersurfacenotify(struct wl_listener *listener, void *data);
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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);
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static void urgent(struct wl_listener *listener, void *data);
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static void view(const Arg *arg);
static void virtualkeyboard(struct wl_listener *listener, void *data);
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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);
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static void zoom(const Arg *arg);
/* variables */
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static const char broken[] = "broken";
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static struct wl_display *dpy;
static struct wlr_backend *backend;
static struct wlr_scene *scene;
static struct wlr_scene_node *layers[NUM_LAYERS];
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static struct wlr_renderer *drw;
static struct wlr_allocator *alloc;
static struct wlr_compositor *compositor;
static struct wlr_xdg_shell *xdg_shell;
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static struct wlr_xdg_activation_v1 *activation;
static struct wl_list clients; /* tiling order */
static struct wl_list fstack; /* focus order */
static struct wlr_idle *idle;
static struct wlr_idle_inhibit_manager_v1 *idle_inhibit_mgr;
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static struct wlr_input_inhibit_manager *input_inhibit_mgr;
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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_seat *seat;
static struct wl_list keyboards;
static unsigned int cursor_mode;
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static Client *grabc;
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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;
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/* 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 idle_inhibitor_create = {.notify = createidleinhibitor};
static struct wl_listener idle_inhibitor_destroy = {.notify = destroyidleinhibitor};
static struct wl_listener layout_change = {.notify = updatemons};
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static struct wl_listener new_input = {.notify = inputdevice};
static struct wl_listener new_virtual_keyboard = {.notify = virtualkeyboard};
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static struct wl_listener new_output = {.notify = createmon};
static struct wl_listener new_xdg_surface = {.notify = createnotify};
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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};
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static struct wl_listener request_activate = {.notify = urgent};
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static struct wl_listener request_cursor = {.notify = setcursor};
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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 drag_icon_destroy = {.notify = dragicondestroy};
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#ifdef XWAYLAND
static void activatex11(struct wl_listener *listener, void *data);
static void configurex11(struct wl_listener *listener, void *data);
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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);
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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};
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static struct wlr_xwayland *xwayland;
static Atom netatom[NetLast];
#endif
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/* configuration, allows nested code to access above variables */
#include "config.h"
/* attempt to encapsulate suck into one file */
#include "client.h"
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/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
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/* function implementations */
void
applybounds(Client *c, struct wlr_box *bbox)
{
/* set minimum possible */
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c->geom.width = MAX(1, c->geom.width);
c->geom.height = MAX(1, 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;
}
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void
applyexclusive(struct wlr_box *usable_area,
uint32_t anchor, int32_t exclusive,
int32_t margin_top, int32_t margin_right,
int32_t margin_bottom, int32_t margin_left) {
Edge edges[] = {
{ /* Top */
.singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
.anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
.positive_axis = &usable_area->y,
.negative_axis = &usable_area->height,
.margin = margin_top,
},
{ /* Bottom */
.singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = NULL,
.negative_axis = &usable_area->height,
.margin = margin_bottom,
},
{ /* Left */
.singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT,
.anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = &usable_area->x,
.negative_axis = &usable_area->width,
.margin = margin_left,
},
{ /* Right */
.singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT,
.anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = NULL,
.negative_axis = &usable_area->width,
.margin = margin_right,
}
};
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for (size_t i = 0; i < LENGTH(edges); i++) {
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if ((anchor == edges[i].singular_anchor || anchor == edges[i].anchor_triplet)
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&& exclusive + edges[i].margin > 0) {
if (edges[i].positive_axis)
*edges[i].positive_axis += exclusive + edges[i].margin;
if (edges[i].negative_axis)
*edges[i].negative_axis -= exclusive + edges[i].margin;
break;
}
}
}
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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)))
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appid = broken;
if (!(title = client_get_title(c)))
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title = broken;
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for (r = rules; r < END(rules); r++) {
if ((!r->title || strstr(title, r->title))
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&& (!r->id || strstr(appid, r->id))) {
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c->isfloating = r->isfloating;
newtags |= r->tags;
i = 0;
wl_list_for_each(m, &mons, link)
if (r->monitor == i++)
mon = m;
}
}
wlr_scene_node_reparent(c->scene, layers[c->isfloating ? LyrFloat : LyrTile]);
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setmon(c, mon, newtags);
}
void
arrange(Monitor *m)
{
Client *c;
wl_list_for_each(c, &clients, link)
wlr_scene_node_set_enabled(c->scene, VISIBLEON(c, c->mon));
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
/* TODO recheck pointer focus here... or in resize()? */
}
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void
arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, int exclusive)
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{
LayerSurface *layersurface;
struct wlr_box full_area = m->m;
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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;
struct wlr_box bounds;
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struct wlr_box box = {
.width = state->desired_width,
.height = state->desired_height
};
const uint32_t both_horiz = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT
| ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
const uint32_t both_vert = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP
| ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
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if (exclusive != (state->exclusive_zone > 0))
continue;
bounds = state->exclusive_zone == -1 ? full_area : *usable_area;
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/* Horizontal axis */
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if ((state->anchor & both_horiz) && box.width == 0) {
box.x = bounds.x;
box.width = bounds.width;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
box.x = bounds.x;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
box.x = bounds.x + (bounds.width - box.width);
} else {
box.x = bounds.x + ((bounds.width / 2) - (box.width / 2));
}
/* Vertical axis */
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if ((state->anchor & both_vert) && box.height == 0) {
box.y = bounds.y;
box.height = bounds.height;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
box.y = bounds.y;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
box.y = bounds.y + (bounds.height - box.height);
} else {
box.y = bounds.y + ((bounds.height / 2) - (box.height / 2));
}
/* Margin */
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if ((state->anchor & both_horiz) == both_horiz) {
box.x += state->margin.left;
box.width -= state->margin.left + state->margin.right;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
box.x += state->margin.left;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
box.x -= state->margin.right;
}
if ((state->anchor & both_vert) == both_vert) {
box.y += state->margin.top;
box.height -= state->margin.top + state->margin.bottom;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
box.y += state->margin.top;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
box.y -= state->margin.bottom;
}
if (box.width < 0 || box.height < 0) {
wlr_layer_surface_v1_destroy(wlr_layer_surface);
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continue;
}
layersurface->geo = box;
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if (state->exclusive_zone > 0)
applyexclusive(usable_area, state->anchor, state->exclusive_zone,
state->margin.top, state->margin.right,
state->margin.bottom, state->margin.left);
wlr_scene_node_set_position(layersurface->scene, box.x, box.y);
wlr_layer_surface_v1_configure(wlr_layer_surface, box.width, box.height);
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}
}
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;
struct wlr_keyboard *kb = wlr_seat_get_keyboard(seat);
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/* Arrange exclusive surfaces from top->bottom */
for (i = 3; i >= 0; i--)
arrangelayer(m, &m->layers[i], &usable_area, 1);
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if (memcmp(&usable_area, &m->w, sizeof(struct wlr_box))) {
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m->w = usable_area;
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arrange(m);
}
/* Arrange non-exlusive surfaces from top->bottom */
for (i = 3; i >= 0; i--)
arrangelayer(m, &m->layers[i], &usable_area, 0);
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/* Find topmost keyboard interactive layer, if such a layer exists */
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for (size_t i = 0; i < LENGTH(layers_above_shell); i++) {
wl_list_for_each_reverse(layersurface,
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&m->layers[layers_above_shell[i]], link) {
if (layersurface->layer_surface->current.keyboard_interactive &&
layersurface->layer_surface->mapped) {
/* Deactivate the focused client. */
focusclient(NULL, 0);
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if (kb)
wlr_seat_keyboard_notify_enter(seat, layersurface->layer_surface->surface,
kb->keycodes, kb->num_keycodes, &kb->modifiers);
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else
wlr_seat_keyboard_notify_enter(seat, layersurface->layer_surface->surface, NULL, 0, NULL);
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return;
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}
}
}
}
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void
axisnotify(struct wl_listener *listener, void *data)
{
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/* This event is forwarded by the cursor when a pointer emits an axis event,
* for example when you move the scroll wheel. */
struct wlr_event_pointer_axis *event = data;
wlr_idle_notify_activity(idle, seat);
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/* Notify the client with pointer focus of the axis event. */
wlr_seat_pointer_notify_axis(seat,
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event->time_msec, event->orientation, event->delta,
event->delta_discrete, event->source);
}
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void
buttonpress(struct wl_listener *listener, void *data)
{
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struct wlr_event_pointer_button *event = data;
struct wlr_keyboard *keyboard;
uint32_t mods;
Client *c;
const Button *b;
wlr_idle_notify_activity(idle, seat);
switch (event->state) {
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case WLR_BUTTON_PRESSED:
/* Change focus if the button was _pressed_ over a client */
xytonode(cursor->x, cursor->y, NULL, &c, NULL, NULL, NULL);
/* Don't focus unmanaged clients */
if (c && !client_is_unmanaged(c))
focusclient(c, 1);
keyboard = wlr_seat_get_keyboard(seat);
mods = keyboard ? wlr_keyboard_get_modifiers(keyboard) : 0;
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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:
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/* If you released any buttons, we exit interactive move/resize mode. */
/* TODO should reset to the pointer focus's current setcursor */
if (cursor_mode != CurNormal) {
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wlr_xcursor_manager_set_cursor_image(cursor_mgr, "left_ptr", cursor);
cursor_mode = CurNormal;
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/* Drop the window off on its new monitor */
selmon = xytomon(cursor->x, cursor->y);
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setmon(grabc, selmon, 0);
return;
}
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);
}
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void
chvt(const Arg *arg)
{
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wlr_session_change_vt(wlr_backend_get_session(backend), arg->ui);
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}
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void
cleanup(void)
{
#ifdef XWAYLAND
wlr_xwayland_destroy(xwayland);
#endif
wl_display_destroy_clients(dpy);
wlr_backend_destroy(backend);
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wlr_xcursor_manager_destroy(cursor_mgr);
wlr_cursor_destroy(cursor);
wlr_output_layout_destroy(output_layout);
wlr_seat_destroy(seat);
wl_display_destroy(dpy);
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}
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void
cleanupkeyboard(struct wl_listener *listener, void *data)
{
struct wlr_input_device *device = data;
Keyboard *kb = device->data;
wl_list_remove(&kb->link);
wl_list_remove(&kb->modifiers.link);
wl_list_remove(&kb->key.link);
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wl_list_remove(&kb->destroy.link);
free(kb);
}
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void
cleanupmon(struct wl_listener *listener, void *data)
{
struct wlr_output *wlr_output = data;
Monitor *m = wlr_output->data;
int nmons, i = 0;
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wl_list_remove(&m->destroy.link);
wl_list_remove(&m->frame.link);
wl_list_remove(&m->link);
wlr_output_layout_remove(output_layout, m->wlr_output);
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wlr_scene_output_destroy(m->scene_output);
if ((nmons = wl_list_length(&mons)))
do /* don't switch to disabled mons */
selmon = wl_container_of(mons.prev, selmon, link);
while (!selmon->wlr_output->enabled && i++ < nmons);
focusclient(focustop(selmon), 1);
closemon(m);
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free(m);
}
void
closemon(Monitor *m)
{
/* move closed monitor's clients to the focused one */
Client *c;
wl_list_for_each(c, &clients, link) {
if (c->isfloating && c->geom.x > m->m.width)
resize(c, c->geom.x - m->w.width, c->geom.y,
c->geom.width, c->geom.height, 0);
if (c->mon == m)
setmon(c, selmon, c->tags);
}
printstatus();
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}
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void
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commitlayersurfacenotify(struct wl_listener *listener, void *data)
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{
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;
Monitor *m;
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wlr_scene_node_reparent(layersurface->scene,
layers[wlr_layer_surface->current.layer]);
if (!wlr_output || !(m = wlr_output->data))
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return;
if (wlr_layer_surface->current.committed == 0
&& layersurface->mapped == wlr_layer_surface->mapped)
return;
layersurface->mapped = wlr_layer_surface->mapped;
if (layers[wlr_layer_surface->current.layer] != layersurface->scene) {
wl_list_remove(&layersurface->link);
wl_list_insert(&m->layers[wlr_layer_surface->current.layer],
&layersurface->link);
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}
arrangelayers(m);
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}
void
commitnotify(struct wl_listener *listener, void *data)
{
Client *c = wl_container_of(listener, c, commit);
/* mark a pending resize as completed */
if (c->resize && c->resize <= c->surface.xdg->current.configure_serial)
c->resize = 0;
else if (c->resize)
c->resize = client_set_size(c, c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw);
}
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);
wlr_idle_set_enabled(idle, seat, 0);
}
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void
createkeyboard(struct wlr_input_device *device)
{
struct xkb_context *context;
struct xkb_keymap *keymap;
Keyboard *kb = device->data = ecalloc(1, sizeof(*kb));
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kb->device = device;
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/* Prepare an XKB keymap and assign it to the keyboard. */
context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
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keymap = xkb_keymap_new_from_names(context, &xkb_rules,
XKB_KEYMAP_COMPILE_NO_FLAGS);
wlr_keyboard_set_keymap(device->keyboard, keymap);
xkb_keymap_unref(keymap);
xkb_context_unref(context);
wlr_keyboard_set_repeat_info(device->keyboard, repeat_rate, repeat_delay);
/* Here we set up listeners for keyboard events. */
LISTEN(&device->keyboard->events.modifiers, &kb->modifiers, keypressmod);
LISTEN(&device->keyboard->events.key, &kb->key, keypress);
LISTEN(&device->events.destroy, &kb->destroy, cleanupkeyboard);
wlr_seat_set_keyboard(seat, device);
/* And add the keyboard to our list of keyboards */
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wl_list_insert(&keyboards, &kb->link);
}
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void
createlayersurface(struct wl_listener *listener, void *data)
{
struct wlr_layer_surface_v1 *wlr_layer_surface = data;
LayerSurface *layersurface;
Monitor *m;
struct wlr_layer_surface_v1_state old_state;
if (!wlr_layer_surface->output) {
wlr_layer_surface->output = selmon->wlr_output;
}
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;
wlr_layer_surface->data = layersurface;
m = wlr_layer_surface->output->data;
layersurface->scene = wlr_layer_surface->surface->data =
wlr_scene_subsurface_tree_create(layers[wlr_layer_surface->pending.layer],
wlr_layer_surface->surface);
layersurface->scene->data = layersurface;
wl_list_insert(&m->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;
arrangelayers(m);
wlr_layer_surface->current = old_state;
}
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void
createmon(struct wl_listener *listener, void *data)
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{
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/* This event is raised by the backend when a new output (aka a display or
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* monitor) becomes available. */
struct wlr_output *wlr_output = data;
const MonitorRule *r;
Monitor *m = wlr_output->data = ecalloc(1, sizeof(*m));
m->wlr_output = wlr_output;
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wlr_output_init_render(wlr_output, alloc, drw);
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/* Initialize monitor state using configured rules */
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for (size_t i = 0; i < LENGTH(m->layers); i++)
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wl_list_init(&m->layers[i]);
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m->tagset[0] = m->tagset[1] = 1;
for (r = monrules; r < END(monrules); r++) {
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if (!r->name || strstr(wlr_output->name, r->name)) {
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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;
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wlr_output_set_transform(wlr_output, r->rr);
break;
}
}
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/* 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));
wlr_output_enable_adaptive_sync(wlr_output, 1);
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/* 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;
wl_list_insert(&mons, &m->link);
printstatus();
/* Adds this to the output layout in the order it was configured in.
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*
* 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);
wlr_output_layout_add_auto(output_layout, wlr_output);
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/* If length == 1 we need update selmon.
* Maybe it will change in run(). */
if (wl_list_length(&mons) == 1) {
Client *c;
selmon = m;
/* If there is any client, set c->mon to this monitor */
wl_list_for_each(c, &clients, link)
setmon(c, m, c->tags);
}
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}
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void
createnotify(struct wl_listener *listener, void *data)
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{
/* This event is raised when wlr_xdg_shell receives a new xdg surface from a
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* 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 */
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struct wlr_xdg_surface *xdg_surface = data;
Client *c;
if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP) {
struct wlr_box box;
xdg_surface->surface->data = wlr_scene_xdg_surface_create(
xdg_surface->popup->parent->data, xdg_surface);
if (!(c = client_from_popup(xdg_surface->popup)) || !c->mon)
return;
box = c->mon->m;
box.x -= c->geom.x;
box.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)
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return;
/* Allocate a Client for this surface */
c = xdg_surface->data = ecalloc(1, sizeof(*c));
c->surface.xdg = xdg_surface;
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c->bw = borderpx;
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LISTEN(&xdg_surface->surface->events.commit, &c->commit, commitnotify);
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);
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c->isfullscreen = 0;
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}
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void
createpointer(struct wlr_input_device *device)
{
if (wlr_input_device_is_libinput(device)) {
struct libinput_device *libinput_device = (struct libinput_device*)
wlr_libinput_get_device_handle(device);
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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);
}
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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_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);
}
}
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wlr_cursor_attach_input_device(cursor, device);
}
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void
cursorframe(struct wl_listener *listener, void *data)
{
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/* 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
destroyidleinhibitor(struct wl_listener *listener, void *data)
{
/* I've been testing and at this point the inhibitor has not yet been
* removed from the list, checking if it has at least one item. */
wlr_idle_set_enabled(idle, seat, wl_list_length(&idle_inhibit_mgr->inhibitors) <= 1);
}
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void
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destroylayersurfacenotify(struct wl_listener *listener, void *data)
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{
LayerSurface *layersurface = wl_container_of(listener, layersurface, destroy);
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if (layersurface->layer_surface->mapped)
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unmaplayersurface(layersurface);
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);
if (layersurface->layer_surface->output) {
Monitor *m = layersurface->layer_surface->output->data;
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if (m)
arrangelayers(m);
layersurface->layer_surface->output = NULL;
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}
free(layersurface);
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}
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void
destroynotify(struct wl_listener *listener, void *data)
{
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/* 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);
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wl_list_remove(&c->fullscreen.link);
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#ifdef XWAYLAND
if (c->type != XDGShell) {
wl_list_remove(&c->configure.link);
wl_list_remove(&c->set_hints.link);
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wl_list_remove(&c->activate.link);
} else
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#endif
wl_list_remove(&c->commit.link);
free(c);
}
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Monitor *
dirtomon(enum wlr_direction dir)
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{
struct wlr_output *next;
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;
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}
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void
dragicondestroy(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(selclient(), 1);
motionnotify(0);
}
void
focusclient(Client *c, int lift)
{
struct wlr_surface *old = seat->keyboard_state.focused_surface;
struct wlr_keyboard *kb;
int i;
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/* Raise client in stacking order if requested */
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if (c && lift)
wlr_scene_node_raise_to_top(c->scene);
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if (c && client_surface(c) == old)
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return;
/* Put the new client atop the focus stack and select its monitor */
if (c) {
wl_list_remove(&c->flink);
wl_list_insert(&fstack, &c->flink);
selmon = c->mon;
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c->isurgent = 0;
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.
* It's probably pointless to check if old is a layer surface
* since it can't be anything else at this point. */
if (wlr_surface_is_layer_surface(old)) {
struct wlr_layer_surface_v1 *wlr_layer_surface =
wlr_layer_surface_v1_from_wlr_surface(old);
if (wlr_layer_surface->mapped && (
wlr_layer_surface->current.layer == ZWLR_LAYER_SHELL_V1_LAYER_TOP ||
wlr_layer_surface->current.layer == ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY
))
return;
} else {
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Client *w;
if (old->role_data && (w = client_from_wlr_surface(old)))
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for (i = 0; i < 4; i++)
wlr_scene_rect_set_color(w->border[i], bordercolor);
client_activate_surface(old, 0);
}
}
printstatus();
wlr_idle_set_enabled(idle, seat, wl_list_empty(&idle_inhibit_mgr->inhibitors));
if (!c) {
/* With no client, all we have left is to clear focus */
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wlr_seat_keyboard_notify_clear_focus(seat);
return;
}
#ifdef XWAYLAND
/* This resolves an issue where the last spawned xwayland client
* receives all pointer activity.
*/
if (c->type == X11Managed)
wlr_xwayland_surface_restack(c->surface.xwayland, NULL,
XCB_STACK_MODE_ABOVE);
#endif
/* Have a client, so focus its top-level wlr_surface */
kb = wlr_seat_get_keyboard(seat);
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if (kb)
wlr_seat_keyboard_notify_enter(seat, client_surface(c),
kb->keycodes, kb->num_keycodes, &kb->modifiers);
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else
wlr_seat_keyboard_notify_enter(seat, client_surface(c), NULL, 0, NULL);
/* Activate the new client */
client_activate_surface(client_surface(c), 1);
}
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void
focusmon(const Arg *arg)
{
do
selmon = dirtomon(arg->i);
while (!selmon->wlr_output->enabled);
focusclient(focustop(selmon), 1);
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}
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void
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focusstack(const Arg *arg)
{
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/* Focus the next or previous client (in tiling order) on selmon */
Client *c, *sel = selclient();
if (!sel || (sel->isfullscreen && lockfullscreen))
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return;
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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 */
}
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}
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/* If only one client is visible on selmon, then c == sel */
focusclient(c, 1);
}
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Client *
focustop(Monitor *m)
{
Client *c;
wl_list_for_each(c, &fstack, flink)
if (VISIBLEON(c, m))
return c;
return NULL;
}
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void
fullscreennotify(struct wl_listener *listener, void *data)
{
Client *c = wl_container_of(listener, c, fullscreen);
int fullscreen = client_wants_fullscreen(c);
if (!c->mon) {
/* if the client is not mapped yet, let mapnotify() call setfullscreen() */
c->isfullscreen = fullscreen;
return;
}
setfullscreen(c, fullscreen);
}
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void
incnmaster(const Arg *arg)
{
selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
arrange(selmon);
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}
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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;
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switch (device->type) {
case WLR_INPUT_DEVICE_KEYBOARD:
createkeyboard(device);
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break;
case WLR_INPUT_DEVICE_POINTER:
createpointer(device);
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break;
default:
/* TODO handle other input device types */
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break;
}
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/* 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;
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if (!wl_list_empty(&keyboards))
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caps |= WL_SEAT_CAPABILITY_KEYBOARD;
wlr_seat_set_capabilities(seat, caps);
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}
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int
keybinding(uint32_t mods, xkb_keysym_t sym)
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{
/*
* 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.
*/
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int handled = 0;
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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);
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handled = 1;
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}
}
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return handled;
}
void
keypress(struct wl_listener *listener, void *data)
{
int i;
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/* This event is raised when a key is pressed or released. */
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Keyboard *kb = wl_container_of(listener, kb, key);
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struct wlr_event_keyboard_key *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(
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kb->device->keyboard->xkb_state, keycode, &syms);
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int handled = 0;
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uint32_t mods = wlr_keyboard_get_modifiers(kb->device->keyboard);
wlr_idle_notify_activity(idle, seat);
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/* On _press_ if there is no active screen locker,
* attempt to process a compositor keybinding. */
if (!input_inhibit_mgr->active_inhibitor
&& event->state == WL_KEYBOARD_KEY_STATE_PRESSED)
for (i = 0; i < nsyms; i++)
handled = keybinding(mods, syms[i]) || handled;
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if (!handled) {
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/* Pass unhandled keycodes along to the client. */
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wlr_seat_set_keyboard(seat, kb->device);
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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. */
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Keyboard *kb = wl_container_of(listener, kb, modifiers);
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/*
* 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.
*/
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wlr_seat_set_keyboard(seat, kb->device);
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/* Send modifiers to the client. */
wlr_seat_keyboard_notify_modifiers(seat,
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&kb->device->keyboard->modifiers);
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}
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void
killclient(const Arg *arg)
{
Client *sel = selclient();
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if (sel)
client_send_close(sel);
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}
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void
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maplayersurfacenotify(struct wl_listener *listener, void *data)
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{
LayerSurface *layersurface = wl_container_of(listener, layersurface, map);
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wlr_surface_send_enter(layersurface->layer_surface->surface,
layersurface->layer_surface->output);
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motionnotify(0);
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}
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void
mapnotify(struct wl_listener *listener, void *data)
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{
/* Called when the surface is mapped, or ready to display on-screen. */
Client *c = wl_container_of(listener, c, map);
int i;
/* Create scene tree for this client and its border */
c->scene = &wlr_scene_tree_create(layers[LyrTile])->node;
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;
c->scene->data = c->scene_surface->data = c;
if (client_is_unmanaged(c)) {
client_get_geometry(c, &c->geom);
/* Floating */
wlr_scene_node_reparent(c->scene, layers[LyrFloat]);
wlr_scene_node_set_position(c->scene, c->geom.x + borderpx,
c->geom.y + borderpx);
return;
}
for (i = 0; i < 4; i++) {
c->border[i] = wlr_scene_rect_create(c->scene, 0, 0, bordercolor);
c->border[i]->node.data = c;
wlr_scene_rect_set_color(c->border[i], bordercolor);
}
/* 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;
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/* Insert this client into client lists. */
wl_list_insert(&clients, &c->link);
wl_list_insert(&fstack, &c->flink);
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/* Set initial monitor, tags, floating status, and focus */
applyrules(c);
printstatus();
if (c->isfullscreen)
setfullscreen(c, 1);
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c->mon->un_map = 1;
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}
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void
monocle(Monitor *m)
{
Client *c;
wl_list_for_each(c, &clients, link) {
if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
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continue;
resize(c, m->w.x, m->w.y, m->w.width, m->w.height, 0);
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}
focusclient(focustop(m), 1);
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}
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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_event_pointer_motion_absolute *event = data;
wlr_cursor_warp_absolute(cursor, event->device, event->x, event->y);
motionnotify(event->time_msec);
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}
void
motionnotify(uint32_t time)
{
double sx = 0, sy = 0;
Client *c = NULL;
struct wlr_surface *surface = NULL;
struct wlr_drag_icon *icon;
/* time is 0 in internal calls meant to restore pointer focus. */
if (time) {
wlr_idle_notify_activity(idle, seat);
/* Update selmon (even while dragging a window) */
if (sloppyfocus)
selmon = xytomon(cursor->x, cursor->y);
}
if (seat->drag && (icon = seat->drag->icon))
wlr_scene_node_set_position(icon->data, cursor->x + icon->surface->sx,
cursor->y + icon->surface->sy);
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/* If we are currently grabbing the mouse, handle and return */
if (cursor_mode == CurMove) {
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/* Move the grabbed client to the new position. */
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resize(grabc, cursor->x - grabcx, cursor->y - grabcy,
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grabc->geom.width, grabc->geom.height, 1);
return;
} else if (cursor_mode == CurResize) {
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resize(grabc, grabc->geom.x, grabc->geom.y,
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cursor->x - grabc->geom.x,
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);
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/* If there's no client surface under the cursor, set the cursor image to a
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* default. This is what makes the cursor image appear when you move it
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* off of a client or over its border. */
if (!surface && time)
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wlr_xcursor_manager_set_cursor_image(cursor_mgr, "left_ptr", cursor);
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pointerfocus(c, surface, sx, sy, time);
}
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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_event_pointer_motion *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. */
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wlr_cursor_move(cursor, event->device, event->delta_x, event->delta_y);
motionnotify(event->time_msec);
}
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void
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moveresize(const Arg *arg)
{
if (cursor_mode != CurNormal)
return;
xytonode(cursor->x, cursor->y, NULL, &grabc, NULL, NULL, NULL);
if (!grabc || client_is_unmanaged(grabc))
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return;
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/* Float the window and tell motionnotify to grab it */
setfloating(grabc, 1);
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switch (cursor_mode = arg->ui) {
case CurMove:
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grabcx = cursor->x - grabc->geom.x;
grabcy = cursor->y - grabc->geom.y;
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wlr_xcursor_manager_set_cursor_image(cursor_mgr, "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,
"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;
wlr_output_enable(wlr_output, config_head->state.enabled);
if (config_head->state.enabled) {
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);
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);
}
if (!(ok = wlr_output_test(wlr_output)))
break;
}
wl_list_for_each(config_head, &config->heads, link) {
if (ok && !test)
wlr_output_commit(config_head->state.output);
else
wlr_output_rollback(config_head->state.output);
}
if (ok)
wlr_output_configuration_v1_send_succeeded(config);
else
wlr_output_configuration_v1_send_failed(config);
wlr_output_configuration_v1_destroy(config);
}
void
outputmgrtest(struct wl_listener *listener, void *data)
{
struct wlr_output_configuration_v1 *config = data;
outputmgrapplyortest(config, 1);
}
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void
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pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
uint32_t time)
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{
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);
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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 */
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wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
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}
void
printstatus(void)
{
Monitor *m = NULL;
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Client *c;
unsigned int occ, urg, sel;
wl_list_for_each(m, &mons, link) {
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occ = urg = 0;
wl_list_for_each(c, &clients, link) {
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if (c->mon != m)
continue;
occ |= c->tags;
if (c->isurgent)
urg |= c->tags;
}
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if ((c = focustop(m))) {
printf("%s title %s\n", m->wlr_output->name, client_get_title(c));
printf("%s fullscreen %u\n", m->wlr_output->name, c->isfullscreen);
printf("%s floating %u\n", m->wlr_output->name, c->isfloating);
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sel = c->tags;
} else {
printf("%s title \n", m->wlr_output->name);
printf("%s fullscreen \n", m->wlr_output->name);
printf("%s floating \n", m->wlr_output->name);
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sel = 0;
}
printf("%s selmon %u\n", m->wlr_output->name, m == selmon);
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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);
}
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void
quit(const Arg *arg)
{
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wl_display_terminate(dpy);
}
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void
quitsignal(int signo)
{
quit(NULL);
}
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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;
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int skip = 0;
struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
/* Render if no XDG clients have an outstanding resize and are visible on
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* this monitor. */
/* Checking m->un_map for every client is not optimal but works */
wl_list_for_each(c, &clients, link) {
if ((c->resize && m->un_map) || (c->type == XDGShell
&& (c->surface.xdg->pending.geometry.width !=
c->surface.xdg->current.geometry.width
|| c->surface.xdg->pending.geometry.height !=
c->surface.xdg->current.geometry.height))) {
/* Lie */
wlr_surface_send_frame_done(client_surface(c), &now);
skip = 1;
}
}
if (!skip && !wlr_scene_output_commit(m->scene_output))
return;
/* Let clients know a frame has been rendered */
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wlr_scene_output_send_frame_done(m->scene_output, &now);
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m->un_map = 0;
}
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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, int x, int y, int w, int h, int interact)
{
int min_width = 0, min_height = 0;
struct wlr_box *bbox = interact ? &sgeom : &c->mon->w;
client_min_size(c, &min_width, &min_height);
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c->geom.x = x;
c->geom.y = y;
c->geom.width = MAX(min_width + 2 * c->bw, w);
c->geom.height = MAX(min_height + 2 * c->bw, h);
applybounds(c, bbox);
/* Update scene-graph, including borders */
wlr_scene_node_set_position(c->scene, c->geom.x, c->geom.y);
wlr_scene_node_set_position(c->scene_surface, 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);
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/* wlroots makes this 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);
}
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void
run(char *startup_cmd)
{
pid_t startup_pid = -1;
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/* Add a Unix socket to the Wayland display. */
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const char *socket = wl_display_add_socket_auto(dpy);
if (!socket)
die("startup: display_add_socket_auto");
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setenv("WAYLAND_DISPLAY", socket, 1);
/* Now that the socket exists, run the startup command */
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if (startup_cmd) {
int piperw[2];
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if (pipe(piperw) < 0)
die("startup: pipe:");
if ((startup_pid = fork()) < 0)
die("startup: fork:");
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if (startup_pid == 0) {
dup2(piperw[0], STDIN_FILENO);
close(piperw[0]);
close(piperw[1]);
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execl("/bin/sh", "/bin/sh", "-c", startup_cmd, NULL);
die("startup: execl:");
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}
dup2(piperw[1], STDOUT_FILENO);
close(piperw[1]);
close(piperw[0]);
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}
/* If nobody is reading the status output, don't terminate */
signal(SIGPIPE, SIG_IGN);
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printstatus();
/* 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 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, "left_ptr", cursor);
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/* 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. */
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wl_display_run(dpy);
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if (startup_cmd) {
kill(startup_pid, SIGTERM);
waitpid(startup_pid, NULL, 0);
}
}
Client *
selclient(void)
{
Client *c = wl_container_of(fstack.next, c, flink);
if (wl_list_empty(&fstack) || !VISIBLEON(c, selmon))
return NULL;
return c;
}
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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;
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/* If we're "grabbing" the cursor, don't use the client's image */
/* TODO still need to save the provided surface to restore later */
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if (cursor_mode != CurNormal)
return;
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/* This can be sent by any client, so we check to make sure this one is
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* 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,
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event->hotspot_x, event->hotspot_y);
}
void
setfloating(Client *c, int floating)
{
c->isfloating = floating;
wlr_scene_node_reparent(c->scene, layers[c->isfloating ? LyrFloat : LyrTile]);
arrange(c->mon);
printstatus();
}
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void
setfullscreen(Client *c, int fullscreen)
{
c->isfullscreen = fullscreen;
c->bw = fullscreen ? 0 : borderpx;
client_set_fullscreen(c, fullscreen);
if (fullscreen) {
c->prev = c->geom;
resize(c, c->mon->m.x, c->mon->m.y, c->mon->m.width, c->mon->m.height, 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.x, c->prev.y, c->prev.width, c->prev.height, 0);
}
arrange(c->mon);
printstatus();
}
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void
setlayout(const Arg *arg)
{
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();
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}
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/* arg > 1.0 will set mfact absolutely */
void
setmfact(const Arg *arg)
{
float f;
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if (!arg || !selmon->lt[selmon->sellt]->arrange)
return;
f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
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if (f < 0.1 || f > 0.9)
return;
selmon->mfact = f;
arrange(selmon);
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}
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void
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setmon(Client *c, Monitor *m, unsigned int newtags)
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{
Monitor *oldmon = c->mon;
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if (oldmon == m)
return;
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c->mon = m;
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/* TODO leave/enter is not optimal but works */
if (oldmon) {
wlr_surface_send_leave(client_surface(c), oldmon->wlr_output);
arrange(oldmon);
}
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if (m) {
/* Make sure window actually overlaps with the monitor */
resize(c, c->geom.x, c->geom.y, c->geom.width, c->geom.height, 0);
wlr_surface_send_enter(client_surface(c), m->wlr_output);
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c->tags = newtags ? newtags : m->tagset[m->seltags]; /* assign tags of target monitor */
arrange(m);
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}
focusclient(focustop(selmon), 1);
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}
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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);
}
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void
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setup(void)
{
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/* 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();
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/* Set up signal handlers */
sigchld(0);
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signal(SIGINT, quitsignal);
signal(SIGTERM, quitsignal);
/* 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->node)->node;
layers[LyrBottom] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrTile] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrFloat] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrTop] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrOverlay] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrNoFocus] = &wlr_scene_tree_create(&scene->node)->node;
/* Create a renderer with the default implementation */
if (!(drw = wlr_renderer_autocreate(backend)))
die("couldn't create renderer");
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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);
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wlr_export_dmabuf_manager_v1_create(dpy);
wlr_screencopy_manager_v1_create(dpy);
wlr_data_control_manager_v1_create(dpy);
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wlr_data_device_manager_create(dpy);
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wlr_gamma_control_manager_v1_create(dpy);
wlr_primary_selection_v1_device_manager_create(dpy);
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wlr_viewporter_create(dpy);
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/* 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);
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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);
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idle = wlr_idle_create(dpy);
idle_inhibit_mgr = wlr_idle_inhibit_v1_create(dpy);
wl_signal_add(&idle_inhibit_mgr->events.new_inhibitor, &idle_inhibitor_create);
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layer_shell = wlr_layer_shell_v1_create(dpy);
wl_signal_add(&layer_shell->events.new_surface, &new_layer_shell_surface);
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xdg_shell = wlr_xdg_shell_create(dpy);
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wl_signal_add(&xdg_shell->events.new_surface, &new_xdg_surface);
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input_inhibit_mgr = wlr_input_inhibit_manager_create(dpy);
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/* 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);
wlr_xdg_decoration_manager_v1_create(dpy);
/*
* 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);
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seat = wlr_seat_create(dpy, "seat0");
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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));
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#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");
}
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#endif
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}
void
sigchld(int unused)
{
/* We should be able to remove this function in favor of a simple
* signal(SIGCHLD, SIG_IGN);
* but the Xwayland implementation in wlroots currently prevents us from
* setting our own disposition for SIGCHLD.
*/
if (signal(SIGCHLD, sigchld) == SIG_ERR)
die("can't install SIGCHLD handler:");
while (0 < waitpid(-1, NULL, WNOHANG))
;
}
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void
spawn(const Arg *arg)
{
if (fork() == 0) {
dup2(STDERR_FILENO, STDOUT_FILENO);
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setsid();
execvp(((char **)arg->v)[0], (char **)arg->v);
die("dwl: execvp %s failed:", ((char **)arg->v)[0]);
}
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}
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[LyrNoFocus], drag->icon->surface);
motionnotify(0);
wl_signal_add(&drag->icon->events.destroy, &drag_icon_destroy);
}
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void
tag(const Arg *arg)
{
Client *sel = selclient();
if (sel && arg->ui & TAGMASK) {
sel->tags = arg->ui & TAGMASK;
focusclient(focustop(selmon), 1);
arrange(selmon);
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}
printstatus();
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}
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void
tagmon(const Arg *arg)
{
Client *sel = selclient();
if (!sel)
return;
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setmon(sel, dirtomon(arg->i), 0);
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}
void
tile(Monitor *m)
{
unsigned int i, n = 0, h, mw, my, ty;
Client *c;
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wl_list_for_each(c, &clients, link)
if (VISIBLEON(c, m) && !c->isfloating && !c->isfullscreen)
n++;
if (n == 0)
return;
if (n > m->nmaster)
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mw = m->nmaster ? m->w.width * m->mfact : 0;
else
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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) {
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h = (m->w.height - my) / (MIN(n, m->nmaster) - i);
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resize(c, m->w.x, m->w.y + my, mw, h, 0);
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my += c->geom.height;
} else {
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h = (m->w.height - ty) / (n - i);
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resize(c, m->w.x + mw, m->w.y + ty, m->w.width - mw, h, 0);
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ty += c->geom.height;
}
i++;
}
}
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void
togglefloating(const Arg *arg)
{
Client *sel = selclient();
/* return if fullscreen */
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if (sel && !sel->isfullscreen)
setfloating(sel, !sel->isfloating);
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}
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void
togglefullscreen(const Arg *arg)
{
Client *sel = selclient();
if (sel)
setfullscreen(sel, !sel->isfullscreen);
}
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void
toggletag(const Arg *arg)
{
unsigned int newtags;
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Client *sel = selclient();
if (!sel)
return;
newtags = sel->tags ^ (arg->ui & TAGMASK);
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if (newtags) {
sel->tags = newtags;
focusclient(focustop(selmon), 1);
arrange(selmon);
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}
printstatus();
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}
void
toggleview(const Arg *arg)
{
unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
if (newtagset) {
selmon->tagset[selmon->seltags] = newtagset;
focusclient(focustop(selmon), 1);
arrange(selmon);
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}
printstatus();
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}
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void
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unmaplayersurface(LayerSurface *layersurface)
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{
layersurface->layer_surface->mapped = 0;
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if (layersurface->layer_surface->surface ==
seat->keyboard_state.focused_surface)
focusclient(selclient(), 1);
motionnotify(0);
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}
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void
unmaplayersurfacenotify(struct wl_listener *listener, void *data)
{
LayerSurface *layersurface = wl_container_of(listener, layersurface, unmap);
unmaplayersurface(layersurface);
}
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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;
}
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if (c->mon)
c->mon->un_map = 1;
if (client_is_unmanaged(c)) {
wlr_scene_node_destroy(c->scene);
return;
}
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wl_list_remove(&c->link);
setmon(c, NULL, 0);
wl_list_remove(&c->flink);
wlr_scene_node_destroy(c->scene);
printstatus();
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}
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void
updatemons(struct wl_listener *listener, void *data)
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{
/*
* 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();
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Monitor *m;
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sgeom = *wlr_output_layout_get_box(output_layout, NULL);
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wl_list_for_each(m, &mons, link) {
struct wlr_output_configuration_head_v1 *config_head =
wlr_output_configuration_head_v1_create(config, m->wlr_output);
/* TODO: move clients off disabled monitors */
/* TODO: move focus if selmon is disabled */
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/* Get the effective monitor geometry to use for surfaces */
m->m = m->w = *wlr_output_layout_get_box(output_layout, m->wlr_output);
wlr_scene_output_set_position(m->scene_output, m->m.x, m->m.y);
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/* 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 = m->wlr_output->enabled;
config_head->state.mode = m->wlr_output->current_mode;
config_head->state.x = m->m.x;
config_head->state.y = m->m.y;
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}
wlr_output_manager_v1_set_configuration(output_mgr, config);
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}
void
updatetitle(struct wl_listener *listener, void *data)
{
Client *c = wl_container_of(listener, c, set_title);
if (c == focustop(c->mon))
printstatus();
}
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void
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urgent(struct wl_listener *listener, void *data)
{
struct wlr_xdg_activation_v1_request_activate_event *event = data;
Client *c = client_from_wlr_surface(event->surface);
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if (c != selclient()) {
c->isurgent = 1;
printstatus();
}
}
void
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view(const Arg *arg)
{
if ((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();
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}
void
virtualkeyboard(struct wl_listener *listener, void *data)
{
struct wlr_virtual_keyboard_v1 *keyboard = data;
struct wlr_input_device *device = &keyboard->input_device;
createkeyboard(device);
}
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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)
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{
struct wlr_scene_node *node, *pnode;
struct wlr_surface *surface = NULL;
Client *c = NULL;
LayerSurface *l = NULL;
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const int *layer;
int focus_order[] = { LyrOverlay, LyrTop, LyrFloat, LyrTile, LyrBottom, LyrBg };
2022-04-15 15:40:02 -07:00
for (layer = focus_order; layer < END(focus_order); layer++) {
if ((node = wlr_scene_node_at(layers[*layer], x, y, nx, ny))) {
if (node->type == WLR_SCENE_NODE_SURFACE)
surface = wlr_scene_surface_from_node(node)->surface;
/* Walk the tree to find a node that knows the client */
for (pnode = node; pnode && !c; pnode = pnode->parent)
c = pnode->data;
if (c && c->type == LayerShell) {
c = NULL;
l = pnode->data;
}
}
if (surface)
break;
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}
if (psurface) *psurface = surface;
if (pc) *pc = c;
if (pl) *pl = l;
return node;
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}
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void
zoom(const Arg *arg)
{
Client *c, *sel = selclient();
2020-07-24 08:12:41 -07:00
if (!sel || !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 */
2020-07-24 08:12:41 -07:00
wl_list_for_each(c, &clients, link)
if (VISIBLEON(c, selmon) && !c->isfloating) {
if (c != sel)
2020-07-24 08:12:41 -07:00
break;
sel = NULL;
2020-07-24 08:12:41 -07:00
}
/* Return if no other tiled window was found */
if (&c->link == &clients)
2020-07-24 08:12:41 -07:00
return;
/* If we passed sel, move c to the front; otherwise, move sel to the
* front */
if (!sel)
sel = c;
2020-07-24 08:12:41 -07:00
wl_list_remove(&sel->link);
wl_list_insert(&clients, &sel->link);
focusclient(sel, 1);
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arrange(selmon);
}
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#ifdef XWAYLAND
void
activatex11(struct wl_listener *listener, void *data)
{
2021-02-14 10:43:10 -08:00
Client *c = wl_container_of(listener, c, activate);
2020-08-10 10:50:56 -07:00
2021-02-14 10:43:10 -08:00
/* Only "managed" windows can be activated */
if (c->type == X11Managed)
wlr_xwayland_surface_activate(c->surface.xwayland, 1);
2020-08-10 10:50:56 -07:00
}
void
configurex11(struct wl_listener *listener, void *data)
{
Client *c = wl_container_of(listener, c, configure);
struct wlr_xwayland_surface_configure_event *event = data;
wlr_xwayland_surface_configure(c->surface.xwayland,
event->x, event->y, event->width, event->height);
}
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void
createnotifyx11(struct wl_listener *listener, void *data)
{
2020-12-24 19:39:45 -08:00
struct wlr_xwayland_surface *xwayland_surface = data;
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Client *c;
wl_list_for_each(c, &clients, link)
if (c->isfullscreen && VISIBLEON(c, c->mon))
setfullscreen(c, 0);
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/* Allocate a Client for this surface */
c = xwayland_surface->data = ecalloc(1, sizeof(*c));
2020-08-10 10:50:56 -07:00
c->surface.xwayland = xwayland_surface;
c->type = xwayland_surface->override_redirect ? X11Unmanaged : X11Managed;
c->bw = borderpx;
c->isfullscreen = 0;
2020-08-10 10:50:56 -07:00
/* Listen to the various events it can emit */
LISTEN(&xwayland_surface->events.map, &c->map, mapnotify);
LISTEN(&xwayland_surface->events.unmap, &c->unmap, unmapnotify);
2022-03-11 21:02:37 -08:00
LISTEN(&xwayland_surface->events.request_activate, &c->activate, activatex11);
LISTEN(&xwayland_surface->events.request_configure, &c->configure,
configurex11);
LISTEN(&xwayland_surface->events.set_hints, &c->set_hints, sethints);
LISTEN(&xwayland_surface->events.set_title, &c->set_title, updatetitle);
LISTEN(&xwayland_surface->events.destroy, &c->destroy, destroynotify);
LISTEN(&xwayland_surface->events.request_fullscreen, &c->fullscreen,
fullscreennotify);
2020-08-10 10:50:56 -07:00
}
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);
2020-08-10 10:50:56 -07:00
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 != selclient()) {
c->isurgent = c->surface.xwayland->hints_urgency;
printstatus();
}
}
2020-08-10 10:50:56 -07:00
void
xwaylandready(struct wl_listener *listener, void *data)
{
2020-12-24 19:39:45 -08:00
struct wlr_xcursor *xcursor;
2020-08-10 10:50:56 -07:00
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");
2020-08-10 10:50:56 -07:00
/* 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);
2020-08-10 10:50:56 -07:00
xcb_disconnect(xc);
}
#endif
2020-04-21 16:57:04 -07:00
int
main(int argc, char *argv[])
{
char *startup_cmd = NULL;
int c;
2020-08-18 22:30:00 -07:00
2022-05-09 12:52:03 -07:00
while ((c = getopt(argc, argv, "s:hv")) != -1) {
2020-08-18 22:30:00 -07:00
if (c == 's')
2020-04-21 16:57:04 -07:00
startup_cmd = optarg;
2022-05-09 12:52:03 -07:00
else if (c == 'v')
die("dwl " VERSION);
2020-08-18 22:30:00 -07:00
else
2020-06-03 13:05:12 -07:00
goto usage;
2020-04-21 16:57:04 -07:00
}
2020-06-03 13:05:12 -07:00
if (optind < argc)
goto usage;
2020-04-21 16:57:04 -07:00
/* Wayland requires XDG_RUNTIME_DIR for creating its communications socket */
if (!getenv("XDG_RUNTIME_DIR"))
die("XDG_RUNTIME_DIR must be set");
2020-04-21 16:57:04 -07:00
setup();
run(startup_cmd);
2020-08-18 22:32:57 -07:00
cleanup();
2020-04-23 20:20:54 -07:00
return EXIT_SUCCESS;
2020-06-03 13:05:12 -07:00
usage:
die("Usage: %s [-v] [-s startup command]", argv[0]);
}