From b91239c8ac5cd17239c3aa830831b9d4e97c9f61 Mon Sep 17 00:00:00 2001 From: Forrest Bushstone Date: Tue, 30 Jan 2024 16:02:31 -0500 Subject: [PATCH] Support pointer constraints and relative pointer protocols --- Makefile | 17 ++++--- dwl.c | 135 ++++++++++++++++++++++++++++++++++++++++++++++++------- 2 files changed, 129 insertions(+), 23 deletions(-) diff --git a/Makefile b/Makefile index 0822ddc..a67fdd3 100644 --- a/Makefile +++ b/Makefile @@ -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 $@ diff --git a/dwl.c b/dwl.c index c8283b7..6d9d896 100644 --- a/dwl.c +++ b/dwl.c @@ -35,9 +35,11 @@ #include #include #include +#include #include #include #include +#include #include #include #include @@ -54,6 +56,7 @@ #include #include #include +#include #include #ifdef XWAYLAND #include @@ -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; @@ -479,7 +496,7 @@ 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 +1065,35 @@ 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 +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 destroydecoration(struct wl_listener *listener, void *data) { @@ -1040,7 +1108,7 @@ 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 +1144,7 @@ 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); @@ -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 @@ -1606,20 +1674,50 @@ 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->keyboard_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) */ @@ -1673,8 +1771,8 @@ 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 @@ -1779,7 +1877,8 @@ pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy, { struct timespec now; - if (sloppyfocus && time && c && !client_is_unmanaged(c)) + if (surface != seat->pointer_state.focused_surface && + sloppyfocus && time && c && !client_is_unmanaged(c)) focusclient(c, 0); /* If surface is NULL, clear pointer focus */ @@ -1798,7 +1897,6 @@ 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 @@ -2291,6 +2389,11 @@ 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. @@ -2557,7 +2660,7 @@ 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 @@ -2583,7 +2686,7 @@ 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