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Support pointer constraints and relative pointer protocols

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Fixes: https://codeberg.org/dwl/dwl/issues/489
FIxes: https://codeberg.org/dwl/dwl/issues/317
This commit is contained in:
Forrest Bushstone
2024-02-26 16:43:01 -05:00
committed by Leonardo Hernández Hernández
parent 8006e79200
commit ea33ce9ae6
2 changed files with 129 additions and 23 deletions
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17
Makefile
View File

@@ -16,7 +16,7 @@ LDLIBS = `$(PKG_CONFIG) --libs $(PKGS)` $(LIBS)
all: dwl
dwl: dwl.o util.o
$(CC) dwl.o util.o $(LDLIBS) $(LDFLAGS) $(DWLCFLAGS) -o $@
dwl.o: dwl.c config.mk config.h client.h cursor-shape-v1-protocol.h xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h
dwl.o: dwl.c config.mk config.h client.h cursor-shape-v1-protocol.h pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h xdg-shell-protocol.h
util.o: util.c util.h
# wayland-scanner is a tool which generates C headers and rigging for Wayland
@@ -25,15 +25,18 @@ util.o: util.c util.h
WAYLAND_SCANNER = `$(PKG_CONFIG) --variable=wayland_scanner wayland-scanner`
WAYLAND_PROTOCOLS = `$(PKG_CONFIG) --variable=pkgdatadir wayland-protocols`
xdg-shell-protocol.h:
$(WAYLAND_SCANNER) server-header \
$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
wlr-layer-shell-unstable-v1-protocol.h:
$(WAYLAND_SCANNER) server-header \
protocols/wlr-layer-shell-unstable-v1.xml $@
cursor-shape-v1-protocol.h:
$(WAYLAND_SCANNER) server-header \
$(WAYLAND_PROTOCOLS)/staging/cursor-shape/cursor-shape-v1.xml $@
pointer-constraints-unstable-v1-protocol.h:
$(WAYLAND_SCANNER) server-header \
$(WAYLAND_PROTOCOLS)/unstable/pointer-constraints/pointer-constraints-unstable-v1.xml $@
wlr-layer-shell-unstable-v1-protocol.h:
$(WAYLAND_SCANNER) server-header \
protocols/wlr-layer-shell-unstable-v1.xml $@
xdg-shell-protocol.h:
$(WAYLAND_SCANNER) server-header \
$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
config.h:
cp config.def.h $@

135
dwl.c
View File

@@ -35,9 +35,11 @@
#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_pointer_constraints_v1.h>
#include <wlr/types/wlr_presentation_time.h>
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_relative_pointer_v1.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_seat.h>
@@ -54,6 +56,7 @@
#include <wlr/types/wlr_xdg_output_v1.h>
#include <wlr/types/wlr_xdg_shell.h>
#include <wlr/util/log.h>
#include <wlr/util/region.h>
#include <xkbcommon/xkbcommon.h>
#ifdef XWAYLAND
#include <wlr/xwayland.h>
@@ -214,6 +217,11 @@ typedef struct {
int x, y;
} MonitorRule;
typedef struct {
struct wlr_pointer_constraint_v1 *constraint;
struct wl_listener destroy;
} PointerConstraint;
typedef struct {
const char *id;
const char *title;
@@ -255,7 +263,10 @@ static void createlocksurface(struct wl_listener *listener, void *data);
static void createmon(struct wl_listener *listener, void *data);
static void createnotify(struct wl_listener *listener, void *data);
static void createpointer(struct wlr_pointer *pointer);
static void createpointerconstraint(struct wl_listener *listener, void *data);
static void cursorconstrain(struct wlr_pointer_constraint_v1 *constraint);
static void cursorframe(struct wl_listener *listener, void *data);
static void cursorwarptohint(void);
static void destroydecoration(struct wl_listener *listener, void *data);
static void destroydragicon(struct wl_listener *listener, void *data);
static void destroyidleinhibitor(struct wl_listener *listener, void *data);
@@ -263,6 +274,7 @@ static void destroylayersurfacenotify(struct wl_listener *listener, void *data);
static void destroylock(SessionLock *lock, int unlocked);
static void destroylocksurface(struct wl_listener *listener, void *data);
static void destroynotify(struct wl_listener *listener, void *data);
static void destroypointerconstraint(struct wl_listener *listener, void *data);
static void destroysessionlock(struct wl_listener *listener, void *data);
static void destroysessionmgr(struct wl_listener *listener, void *data);
static Monitor *dirtomon(enum wlr_direction dir);
@@ -285,7 +297,8 @@ static void mapnotify(struct wl_listener *listener, void *data);
static void maximizenotify(struct wl_listener *listener, void *data);
static void monocle(Monitor *m);
static void motionabsolute(struct wl_listener *listener, void *data);
static void motionnotify(uint32_t time);
static void motionnotify(uint32_t time, struct wlr_input_device *device, double sx,
double sy, double sx_unaccel, double sy_unaccel);
static void motionrelative(struct wl_listener *listener, void *data);
static void moveresize(const Arg *arg);
static void outputmgrapply(struct wl_listener *listener, void *data);
@@ -366,6 +379,10 @@ static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
static struct wlr_virtual_pointer_manager_v1 *virtual_pointer_mgr;
static struct wlr_cursor_shape_manager_v1 *cursor_shape_mgr;
static struct wlr_pointer_constraints_v1 *pointer_constraints;
static struct wlr_relative_pointer_manager_v1 *relative_pointer_mgr;
static struct wlr_pointer_constraint_v1 *active_constraint;
static struct wlr_cursor *cursor;
static struct wlr_xcursor_manager *cursor_mgr;
@@ -478,7 +495,7 @@ arrange(Monitor *m)
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
checkidleinhibitor(NULL);
}
@@ -1015,6 +1032,28 @@ createpointer(struct wlr_pointer *pointer)
wlr_cursor_attach_input_device(cursor, &pointer->base);
}
void
createpointerconstraint(struct wl_listener *listener, void *data)
{
PointerConstraint *pointer_constraint = ecalloc(1, sizeof(*pointer_constraint));
pointer_constraint->constraint = data;
LISTEN(&pointer_constraint->constraint->events.destroy,
&pointer_constraint->destroy, destroypointerconstraint);
}
void
cursorconstrain(struct wlr_pointer_constraint_v1 *constraint)
{
if (active_constraint == constraint)
return;
if (active_constraint)
wlr_pointer_constraint_v1_send_deactivated(active_constraint);
active_constraint = constraint;
wlr_pointer_constraint_v1_send_activated(constraint);
}
void
cursorframe(struct wl_listener *listener, void *data)
{
@@ -1026,6 +1065,21 @@ cursorframe(struct wl_listener *listener, void *data)
wlr_seat_pointer_notify_frame(seat);
}
void
cursorwarptohint(void)
{
Client *c = NULL;
double sx = active_constraint->current.cursor_hint.x;
double sy = active_constraint->current.cursor_hint.y;
toplevel_from_wlr_surface(active_constraint->surface, &c, NULL);
/* TODO: wlroots 0.18: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4478 */
if (c && (active_constraint->current.committed & WLR_POINTER_CONSTRAINT_V1_STATE_CURSOR_HINT )) {
wlr_cursor_warp(cursor, NULL, sx + c->geom.x + c->bw, sy + c->geom.y + c->bw);
wlr_seat_pointer_warp(active_constraint->seat, sx, sy);
}
}
void
destroydecoration(struct wl_listener *listener, void *data)
{
@@ -1040,7 +1094,7 @@ destroydragicon(struct wl_listener *listener, void *data)
{
/* Focus enter isn't sent during drag, so refocus the focused node. */
focusclient(focustop(selmon), 1);
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
}
void
@@ -1076,7 +1130,7 @@ destroylock(SessionLock *lock, int unlock)
wlr_scene_node_set_enabled(&locked_bg->node, 0);
focusclient(focustop(selmon), 0);
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
destroy:
wl_list_remove(&lock->new_surface.link);
@@ -1135,6 +1189,20 @@ destroynotify(struct wl_listener *listener, void *data)
free(c);
}
void
destroypointerconstraint(struct wl_listener *listener, void *data)
{
PointerConstraint *pointer_constraint = wl_container_of(listener, pointer_constraint, destroy);
if (active_constraint == pointer_constraint->constraint) {
cursorwarptohint();
active_constraint = NULL;
}
wl_list_remove(&pointer_constraint->destroy.link);
free(pointer_constraint);
}
void
destroysessionlock(struct wl_listener *listener, void *data)
{
@@ -1231,7 +1299,7 @@ focusclient(Client *c, int lift)
}
/* Change cursor surface */
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
/* Have a client, so focus its top-level wlr_surface */
client_notify_enter(client_surface(c), wlr_seat_get_keyboard(seat));
@@ -1490,7 +1558,7 @@ locksession(struct wl_listener *listener, void *data)
void
maplayersurfacenotify(struct wl_listener *listener, void *data)
{
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
}
void
@@ -1605,20 +1673,50 @@ motionabsolute(struct wl_listener *listener, void *data)
* so we have to warp the mouse there. There is also some hardware which
* emits these events. */
struct wlr_pointer_motion_absolute_event *event = data;
wlr_cursor_warp_absolute(cursor, &event->pointer->base, event->x, event->y);
motionnotify(event->time_msec);
double lx, ly, dx, dy;
wlr_cursor_absolute_to_layout_coords(cursor, &event->pointer->base, event->x, event->y, &lx, &ly);
dx = lx - cursor->x;
dy = ly - cursor->y;
motionnotify(event->time_msec, &event->pointer->base, dx, dy, dx, dy);
}
void
motionnotify(uint32_t time)
motionnotify(uint32_t time, struct wlr_input_device *device, double dx, double dy,
double dx_unaccel, double dy_unaccel)
{
double sx = 0, sy = 0;
double sx = 0, sy = 0, sx_confined, sy_confined;
Client *c = NULL, *w = NULL;
LayerSurface *l = NULL;
struct wlr_surface *surface = NULL;
struct wlr_pointer_constraint_v1 *constraint;
/* time is 0 in internal calls meant to restore pointer focus. */
if (time) {
wlr_relative_pointer_manager_v1_send_relative_motion(
relative_pointer_mgr, seat, (uint64_t)time * 1000,
dx, dy, dx_unaccel, dy_unaccel);
wl_list_for_each(constraint, &pointer_constraints->constraints, link)
cursorconstrain(constraint);
if (active_constraint && cursor_mode != CurResize && cursor_mode != CurMove) {
toplevel_from_wlr_surface(active_constraint->surface, &c, NULL);
if (c && active_constraint->surface == seat->pointer_state.focused_surface) {
sx = cursor->x - c->geom.x - c->bw;
sy = cursor->y - c->geom.y - c->bw;
if (wlr_region_confine(&active_constraint->region, sx, sy,
sx + dx, sy + dy, &sx_confined, &sy_confined)) {
dx = sx_confined - sx;
dy = sy_confined - sy;
}
if (active_constraint->type == WLR_POINTER_CONSTRAINT_V1_LOCKED)
return;
}
}
wlr_cursor_move(cursor, device, dx, dy);
wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);
/* Update selmon (even while dragging a window) */
@@ -1672,8 +1770,8 @@ motionrelative(struct wl_listener *listener, void *data)
* special configuration applied for the specific input device which
* generated the event. You can pass NULL for the device if you want to move
* the cursor around without any input. */
wlr_cursor_move(cursor, &event->pointer->base, event->delta_x, event->delta_y);
motionnotify(event->time_msec);
motionnotify(event->time_msec, &event->pointer->base, event->delta_x, event->delta_y,
event->unaccel_dx, event->unaccel_dy);
}
void
@@ -1781,7 +1879,8 @@ pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
{
struct timespec now;
if (sloppyfocus && time && c && !client_is_unmanaged(c))
if ((!active_constraint || active_constraint->surface != surface) &&
sloppyfocus && time && c && !client_is_unmanaged(c))
focusclient(c, 0);
/* If surface is NULL, clear pointer focus */
@@ -1800,7 +1899,6 @@ pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
* wlroots makes this a no-op if surface is already focused */
wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
}
void
@@ -2295,6 +2393,11 @@ setup(void)
xdg_decoration_mgr = wlr_xdg_decoration_manager_v1_create(dpy);
LISTEN_STATIC(&xdg_decoration_mgr->events.new_toplevel_decoration, createdecoration);
pointer_constraints = wlr_pointer_constraints_v1_create(dpy);
LISTEN_STATIC(&pointer_constraints->events.new_constraint, createpointerconstraint);
relative_pointer_mgr = wlr_relative_pointer_manager_v1_create(dpy);
/*
* Creates a cursor, which is a wlroots utility for tracking the cursor
* image shown on screen.
@@ -2561,7 +2664,7 @@ unmaplayersurfacenotify(struct wl_listener *listener, void *data)
arrangelayers(l->mon);
if (l->layer_surface->surface == seat->keyboard_state.focused_surface)
focusclient(focustop(selmon), 1);
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
}
void
@@ -2587,7 +2690,7 @@ unmapnotify(struct wl_listener *listener, void *data)
wlr_scene_node_destroy(&c->scene->node);
printstatus();
motionnotify(0);
motionnotify(0, NULL, 0, 0, 0, 0);
}
void