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pointer-constraints: refactoring

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* Rename the constraint_create signal to new_constraint for
  consistency
* Move the constraint_destroy signal to the constraint itself
* Use rotate_child_position instead of duplicating logic
* Fix inert constraint resource handling
* Style fixes
master
emersion 6 years ago
parent 31cc2fa4f9
commit dac4f8e19f
9 changed files with 126 additions and 115 deletions
Show Stats Download Patch File Download Diff File

3
include/rootston/desktop.h
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@ -68,8 +68,7 @@ struct roots_desktop {
struct wl_listener input_inhibit_activate; struct wl_listener input_inhibit_activate;
struct wl_listener input_inhibit_deactivate; struct wl_listener input_inhibit_deactivate;
struct wl_listener virtual_keyboard_new; struct wl_listener virtual_keyboard_new;
struct wl_listener constraint_create; struct wl_listener pointer_constraint;
struct wl_listener constraint_destroy;
#ifdef WLR_HAS_XWAYLAND #ifdef WLR_HAS_XWAYLAND
struct wlr_xwayland *xwayland; struct wlr_xwayland *xwayland;

3
include/rootston/output.h
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@ -28,6 +28,9 @@ struct roots_output {
struct wl_listener damage_destroy; struct wl_listener damage_destroy;
}; };
void rotate_child_position(double *sx, double *sy, double sw, double sh,
double pw, double ph, float rotation);
void handle_new_output(struct wl_listener *listener, void *data); void handle_new_output(struct wl_listener *listener, void *data);
struct roots_view; struct roots_view;

6
include/rootston/seat.h
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@ -122,6 +122,12 @@ struct roots_tablet_tool {
struct wl_listener tablet_destroy; struct wl_listener tablet_destroy;
}; };
struct roots_pointer_constraint {
struct wlr_pointer_constraint_v1 *constraint;
struct wl_listener destroy;
};
struct roots_seat *roots_seat_create(struct roots_input *input, char *name); struct roots_seat *roots_seat_create(struct roots_input *input, char *name);
void roots_seat_destroy(struct roots_seat *seat); void roots_seat_destroy(struct roots_seat *seat);

22
include/wlr/types/wlr_pointer_constraints_v1.h
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@ -48,6 +48,10 @@ struct wlr_pointer_constraint_v1 {
struct wl_list link; // wlr_pointer_constraints_v1::constraints struct wl_list link; // wlr_pointer_constraints_v1::constraints
struct {
struct wl_signal destroy;
} events;
void *data; void *data;
}; };
@ -59,15 +63,9 @@ struct wlr_pointer_constraints_v1 {
/** /**
* Called when a new pointer constraint is created. * Called when a new pointer constraint is created.
* *
* data: wlr_pointer_constraint_v1* * data: struct wlr_pointer_constraint_v1 *
*/ */
struct wl_signal constraint_create; struct wl_signal new_constraint;
/**
* Called when a pointer constraint is destroyed.
*
* data: wlr_pointer_constraint_v1*
*/
struct wl_signal constraint_destroy;
} events; } events;
struct wl_list constraints; // wlr_pointer_constraint_v1::link struct wl_list constraints; // wlr_pointer_constraint_v1::link
@ -78,10 +76,11 @@ struct wlr_pointer_constraints_v1 {
struct wlr_pointer_constraints_v1 *wlr_pointer_constraints_v1_create( struct wlr_pointer_constraints_v1 *wlr_pointer_constraints_v1_create(
struct wl_display *display); struct wl_display *display);
void wlr_pointer_constraints_v1_destroy( void wlr_pointer_constraints_v1_destroy(
struct wlr_pointer_constraints_v1 *wlr_pointer_constraints_v1); struct wlr_pointer_constraints_v1 *pointer_constraints);
struct wlr_pointer_constraint_v1 *wlr_pointer_constraints_v1_constraint_for_surface( struct wlr_pointer_constraint_v1 *
struct wlr_pointer_constraints_v1 *wlr_pointer_constraints_v1, wlr_pointer_constraints_v1_constraint_for_surface(
struct wlr_pointer_constraints_v1 *pointer_constraints,
struct wlr_surface *surface, struct wlr_seat *seat); struct wlr_surface *surface, struct wlr_seat *seat);
void wlr_pointer_constraint_v1_send_activated( void wlr_pointer_constraint_v1_send_activated(
@ -89,5 +88,4 @@ void wlr_pointer_constraint_v1_send_activated(
void wlr_pointer_constraint_v1_send_deactivated( void wlr_pointer_constraint_v1_send_deactivated(
struct wlr_pointer_constraint_v1 *constraint); struct wlr_pointer_constraint_v1 *constraint);
#endif #endif

66
rootston/cursor.c
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@ -572,32 +572,45 @@ void roots_cursor_handle_constraint_commit(struct roots_cursor *cursor) {
} }
} }
static void handle_constraint_commit(struct wl_listener *listener,
void *data) {
struct roots_cursor *cursor =
wl_container_of(listener, cursor, constraint_commit);
assert(cursor->active_constraint->surface == data);
roots_cursor_handle_constraint_commit(cursor);
}
void roots_cursor_constrain(struct roots_cursor *cursor, void roots_cursor_constrain(struct roots_cursor *cursor,
struct wlr_pointer_constraint_v1 *constraint, double sx, double sy) { struct wlr_pointer_constraint_v1 *constraint, double sx, double sy) {
if (cursor->active_constraint != constraint) { if (cursor->active_constraint == constraint) {
wlr_log(WLR_DEBUG, "roots_cursor_constrain(%p, %p)", cursor, constraint); return;
wlr_log(WLR_DEBUG, "cursor->active_constraint: %p", cursor->active_constraint); }
if (cursor->active_constraint) {
wlr_pointer_constraint_v1_send_deactivated(cursor->active_constraint);
if (cursor->constraint_commit.link.next) {
wl_list_remove(&cursor->constraint_commit.link);
}
}
cursor->active_constraint = constraint; wlr_log(WLR_DEBUG, "roots_cursor_constrain(%p, %p)",
cursor, constraint);
wlr_log(WLR_DEBUG, "cursor->active_constraint: %p",
cursor->active_constraint);
if (!constraint) { wl_list_remove(&cursor->constraint_commit.link);
return; wl_list_init(&cursor->constraint_commit.link);
} if (cursor->active_constraint) {
wlr_pointer_constraint_v1_send_deactivated(
cursor->active_constraint);
}
wlr_pointer_constraint_v1_send_activated(constraint); cursor->active_constraint = constraint;
wl_signal_add(&constraint->surface->events.commit,
&cursor->constraint_commit); if (constraint == NULL) {
} else if (constraint == NULL) {
return; return;
} }
wlr_pointer_constraint_v1_send_activated(constraint);
wl_list_remove(&cursor->constraint_commit.link);
wl_signal_add(&constraint->surface->events.commit,
&cursor->constraint_commit);
cursor->constraint_commit.notify = handle_constraint_commit;
pixman_region32_clear(&cursor->confine); pixman_region32_clear(&cursor->confine);
pixman_region32_t *region = &constraint->region; pixman_region32_t *region = &constraint->region;
@ -612,20 +625,11 @@ void roots_cursor_constrain(struct roots_cursor *cursor,
double sx = (boxes[0].x1 + boxes[0].x2) / 2.; double sx = (boxes[0].x1 + boxes[0].x2) / 2.;
double sy = (boxes[0].y1 + boxes[0].y2) / 2.; double sy = (boxes[0].y1 + boxes[0].y2) / 2.;
double lx, ly; rotate_child_position(&sx, &sy, 0, 0, view->width, view->height,
if (view->rotation == 0.0) { view->rotation);
lx = sx + view->x;
ly = sy + view->y;
} else {
double c = cos(view->rotation);
double s = sin(view->rotation);
double center_x = view->width / 2.;
double center_y = view->height / 2.;
lx = c * (sx - center_x) - s * (sy - center_y) + center_x + view->x; double lx = view->x + sx;
ly = s * (sx - center_x) + c * (sy - center_y) + center_y + view->y; double ly = view->y + sy;
}
wlr_cursor_warp_closest(cursor->cursor, NULL, lx, ly); wlr_cursor_warp_closest(cursor->cursor, NULL, lx, ly);
} }

89
rootston/desktop.c
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@ -777,52 +777,59 @@ static void input_inhibit_deactivate(struct wl_listener *listener, void *data) {
} }
} }
static void handle_constraint_create( static void handle_constraint_destroy(struct wl_listener *listener,
struct wl_listener *listener, void *data) {
struct wlr_pointer_constraint_v1 *constraint) { struct roots_pointer_constraint *constraint =
struct roots_seat* seat = constraint->seat->data; wl_container_of(listener, constraint, destroy);
struct wlr_pointer_constraint_v1 *wlr_constraint = data;
struct roots_seat *seat = wlr_constraint->seat->data;
double sx, sy; wl_list_remove(&constraint->destroy.link);
struct wlr_surface *surface = desktop_surface_at(seat->input->server->desktop,
seat->cursor->cursor->x, seat->cursor->cursor->y, &sx, &sy, NULL);
if (surface == constraint->surface) { if (seat->cursor->active_constraint == wlr_constraint) {
assert(!seat->cursor->active_constraint); wl_list_remove(&seat->cursor->constraint_commit.link);
roots_cursor_constrain(seat->cursor, constraint, sx, sy); wl_list_init(&seat->cursor->constraint_commit.link);
} seat->cursor->active_constraint = NULL;
}
static void handle_constraint_destroy( if (wlr_constraint->current.committed &
struct wl_listener *listener,
struct wlr_pointer_constraint_v1 *constraint) {
struct roots_seat* seat = constraint->seat->data;
if (seat->cursor->active_constraint == constraint) {
roots_cursor_constrain(seat->cursor, NULL, NAN, NAN);
if (constraint->current.committed &
WLR_POINTER_CONSTRAINT_V1_STATE_CURSOR_HINT && WLR_POINTER_CONSTRAINT_V1_STATE_CURSOR_HINT &&
seat->cursor->pointer_view) { seat->cursor->pointer_view) {
double sx = constraint->current.cursor_hint.x; double sx = wlr_constraint->current.cursor_hint.x;
double sy = constraint->current.cursor_hint.y; double sy = wlr_constraint->current.cursor_hint.y;
struct roots_view *view = seat->cursor->pointer_view->view; struct roots_view *view = seat->cursor->pointer_view->view;
rotate_child_position(&sx, &sy, 0, 0, view->width, view->height,
view->rotation);
double lx = view->x + sx;
double ly = view->y + sy;
double lx, ly; wlr_cursor_warp(seat->cursor->cursor, NULL, lx, ly);
if (view->rotation == 0.0) { }
lx = sx + view->x; }
ly = sy + view->y;
} else {
double c = cos(view->rotation);
double s = sin(view->rotation);
double center_x = view->width / 2.; free(constraint);
double center_y = view->height / 2.; }
lx = c * (sx - center_x) - s * (sy - center_y) + center_x + view->x; static void handle_pointer_constraint(struct wl_listener *listener,
ly = s * (sx - center_x) + c * (sy - center_y) + center_y + view->y; void *data) {
} struct wlr_pointer_constraint_v1 *wlr_constraint = data;
struct roots_seat *seat = wlr_constraint->seat->data;
wlr_cursor_warp(seat->cursor->cursor, NULL, lx, ly); struct roots_pointer_constraint *constraint =
} calloc(1, sizeof(struct roots_pointer_constraint));
constraint->constraint = wlr_constraint;
constraint->destroy.notify = handle_constraint_destroy;
wl_signal_add(&wlr_constraint->events.destroy, &constraint->destroy);
double sx, sy;
struct wlr_surface *surface = desktop_surface_at(
seat->input->server->desktop,
seat->cursor->cursor->x, seat->cursor->cursor->y, &sx, &sy, NULL);
if (surface == wlr_constraint->surface) {
assert(!seat->cursor->active_constraint);
roots_cursor_constrain(seat->cursor, wlr_constraint, sx, sy);
} }
} }
@ -956,13 +963,11 @@ struct roots_desktop *desktop_create(struct roots_server *server,
&desktop->xdg_toplevel_decoration); &desktop->xdg_toplevel_decoration);
desktop->xdg_toplevel_decoration.notify = handle_xdg_toplevel_decoration; desktop->xdg_toplevel_decoration.notify = handle_xdg_toplevel_decoration;
desktop->pointer_constraints = wlr_pointer_constraints_v1_create(server->wl_display); desktop->pointer_constraints =
desktop->constraint_destroy.notify = (wl_notify_func_t)handle_constraint_destroy; wlr_pointer_constraints_v1_create(server->wl_display);
wl_signal_add(&desktop->pointer_constraints->events.constraint_destroy, desktop->pointer_constraint.notify = handle_pointer_constraint;
&desktop->constraint_destroy); wl_signal_add(&desktop->pointer_constraints->events.new_constraint,
desktop->constraint_create.notify = (wl_notify_func_t)handle_constraint_create; &desktop->pointer_constraint);
wl_signal_add(&desktop->pointer_constraints->events.constraint_create,
&desktop->constraint_create);
return desktop; return desktop;
} }

2
rootston/output.c
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@ -22,7 +22,7 @@
* Rotate a child's position relative to a parent. The parent size is (pw, ph), * Rotate a child's position relative to a parent. The parent size is (pw, ph),
* the child position is (*sx, *sy) and its size is (sw, sh). * the child position is (*sx, *sy) and its size is (sw, sh).
*/ */
static void rotate_child_position(double *sx, double *sy, double sw, double sh, void rotate_child_position(double *sx, double *sy, double sw, double sh,
double pw, double ph, float rotation) { double pw, double ph, float rotation) {
if (rotation != 0.0) { if (rotation != 0.0) {
// Coordinates relative to the center of the subsurface // Coordinates relative to the center of the subsurface

9
rootston/seat.c
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@ -307,14 +307,6 @@ static void handle_pointer_focus_change(struct wl_listener *listener,
roots_cursor_handle_focus_change(cursor, event); roots_cursor_handle_focus_change(cursor, event);
} }
static void handle_constraint_commit(struct wl_listener *listener,
void *data) {
struct roots_cursor *cursor =
wl_container_of(listener, cursor, constraint_commit);
assert(cursor->active_constraint->surface == data);
roots_cursor_handle_constraint_commit(cursor);
}
static void seat_reset_device_mappings(struct roots_seat *seat, static void seat_reset_device_mappings(struct roots_seat *seat,
struct wlr_input_device *device) { struct wlr_input_device *device) {
struct wlr_cursor *cursor = seat->cursor->cursor; struct wlr_cursor *cursor = seat->cursor->cursor;
@ -456,7 +448,6 @@ static void roots_seat_init_cursor(struct roots_seat *seat) {
seat->cursor->focus_change.notify = handle_pointer_focus_change; seat->cursor->focus_change.notify = handle_pointer_focus_change;
wl_list_init(&seat->cursor->constraint_commit.link); wl_list_init(&seat->cursor->constraint_commit.link);
seat->cursor->constraint_commit.notify = handle_constraint_commit;
} }
static void roots_drag_icon_handle_surface_commit(struct wl_listener *listener, static void roots_drag_icon_handle_surface_commit(struct wl_listener *listener,

41
types/wlr_pointer_constraints_v1.c
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@ -1,14 +1,13 @@
#include <assert.h> #include <assert.h>
#include <limits.h> #include <limits.h>
#include <pixman.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdlib.h> #include <stdlib.h>
#include <pixman.h>
#include <wayland-server.h> #include <wayland-server.h>
#include <wlr/types/wlr_box.h> #include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_pointer_constraints_v1.h> #include <wlr/types/wlr_pointer_constraints_v1.h>
#include <wlr/types/wlr_region.h> #include <wlr/types/wlr_region.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include "util/signal.h" #include "util/signal.h"
static const struct zwp_locked_pointer_v1_interface locked_pointer_impl; static const struct zwp_locked_pointer_v1_interface locked_pointer_impl;
@ -47,16 +46,13 @@ static void pointer_constraint_destroy(struct wlr_pointer_constraint_v1 *constra
wlr_log(WLR_DEBUG, "destroying constraint %p", constraint); wlr_log(WLR_DEBUG, "destroying constraint %p", constraint);
wlr_signal_emit_safe(&constraint->events.destroy, constraint);
wl_resource_set_user_data(constraint->resource, NULL); wl_resource_set_user_data(constraint->resource, NULL);
wl_list_remove(&constraint->link); wl_list_remove(&constraint->link);
wl_list_remove(&constraint->surface_commit.link); wl_list_remove(&constraint->surface_commit.link);
wl_list_remove(&constraint->surface_destroy.link); wl_list_remove(&constraint->surface_destroy.link);
wl_list_remove(&constraint->seat_destroy.link); wl_list_remove(&constraint->seat_destroy.link);
wlr_signal_emit_safe(
&constraint->pointer_constraints->events.constraint_destroy,
constraint);
pixman_region32_fini(&constraint->current.region); pixman_region32_fini(&constraint->current.region);
pixman_region32_fini(&constraint->pending.region); pixman_region32_fini(&constraint->pending.region);
pixman_region32_fini(&constraint->region); pixman_region32_fini(&constraint->region);
@ -87,6 +83,9 @@ static void pointer_constraint_handle_set_region(struct wl_client *client,
struct wl_resource *resource, struct wl_resource *region_resource) { struct wl_resource *resource, struct wl_resource *region_resource) {
struct wlr_pointer_constraint_v1 *constraint = struct wlr_pointer_constraint_v1 *constraint =
pointer_constraint_from_resource(resource); pointer_constraint_from_resource(resource);
if (constraint == NULL) {
return;
}
pointer_constraint_set_region(constraint, region_resource); pointer_constraint_set_region(constraint, region_resource);
} }
@ -95,13 +94,16 @@ static void pointer_constraint_set_cursor_position_hint(struct wl_client *client
struct wl_resource *resource, wl_fixed_t x, wl_fixed_t y) { struct wl_resource *resource, wl_fixed_t x, wl_fixed_t y) {
struct wlr_pointer_constraint_v1 *constraint = struct wlr_pointer_constraint_v1 *constraint =
pointer_constraint_from_resource(resource); pointer_constraint_from_resource(resource);
if (constraint == NULL) {
return;
}
constraint->pending.cursor_hint.x = wl_fixed_to_double(x); constraint->pending.cursor_hint.x = wl_fixed_to_double(x);
constraint->pending.cursor_hint.y = wl_fixed_to_double(y); constraint->pending.cursor_hint.y = wl_fixed_to_double(y);
constraint->pending.committed |= WLR_POINTER_CONSTRAINT_V1_STATE_CURSOR_HINT; constraint->pending.committed |= WLR_POINTER_CONSTRAINT_V1_STATE_CURSOR_HINT;
} }
static void pointer_constraint_handle_commit( static void pointer_constraint_commit(
struct wlr_pointer_constraint_v1 *constraint) { struct wlr_pointer_constraint_v1 *constraint) {
if (constraint->pending.committed & if (constraint->pending.committed &
WLR_POINTER_CONSTRAINT_V1_STATE_REGION) { WLR_POINTER_CONSTRAINT_V1_STATE_REGION) {
@ -130,7 +132,7 @@ static void handle_surface_commit(struct wl_listener *listener, void *data) {
struct wlr_pointer_constraint_v1 *constraint = struct wlr_pointer_constraint_v1 *constraint =
wl_container_of(listener, constraint, surface_commit); wl_container_of(listener, constraint, surface_commit);
pointer_constraint_handle_commit(constraint); pointer_constraint_commit(constraint);
} }
static void handle_surface_destroy(struct wl_listener *listener, void *data) { static void handle_surface_destroy(struct wl_listener *listener, void *data) {
@ -188,7 +190,6 @@ static void pointer_constraint_create(struct wl_client *client,
struct wl_resource *resource = locked_pointer ? struct wl_resource *resource = locked_pointer ?
wl_resource_create(client, &zwp_locked_pointer_v1_interface, version, id) : wl_resource_create(client, &zwp_locked_pointer_v1_interface, version, id) :
wl_resource_create(client, &zwp_confined_pointer_v1_interface, version, id); wl_resource_create(client, &zwp_confined_pointer_v1_interface, version, id);
if (resource == NULL) { if (resource == NULL) {
wl_client_post_no_memory(client); wl_client_post_no_memory(client);
return; return;
@ -196,6 +197,7 @@ static void pointer_constraint_create(struct wl_client *client,
struct wlr_pointer_constraint_v1 *constraint = calloc(1, sizeof(*constraint)); struct wlr_pointer_constraint_v1 *constraint = calloc(1, sizeof(*constraint));
if (constraint == NULL) { if (constraint == NULL) {
wl_resource_destroy(resource);
wl_client_post_no_memory(client); wl_client_post_no_memory(client);
return; return;
} }
@ -207,13 +209,15 @@ static void pointer_constraint_create(struct wl_client *client,
constraint->type = type; constraint->type = type;
constraint->pointer_constraints = pointer_constraints; constraint->pointer_constraints = pointer_constraints;
wl_signal_init(&constraint->events.destroy);
pixman_region32_init(&constraint->region); pixman_region32_init(&constraint->region);
pixman_region32_init(&constraint->pending.region); pixman_region32_init(&constraint->pending.region);
pixman_region32_init(&constraint->current.region); pixman_region32_init(&constraint->current.region);
pointer_constraint_set_region(constraint, region_resource); pointer_constraint_set_region(constraint, region_resource);
pointer_constraint_handle_commit(constraint); pointer_constraint_commit(constraint);
constraint->surface_commit.notify = handle_surface_commit; constraint->surface_commit.notify = handle_surface_commit;
wl_signal_add(&surface->events.commit, &constraint->surface_commit); wl_signal_add(&surface->events.commit, &constraint->surface_commit);
@ -224,16 +228,18 @@ static void pointer_constraint_create(struct wl_client *client,
constraint->seat_destroy.notify = handle_seat_destroy; constraint->seat_destroy.notify = handle_seat_destroy;
wl_signal_add(&seat->events.destroy, &constraint->seat_destroy); wl_signal_add(&seat->events.destroy, &constraint->seat_destroy);
wl_resource_set_implementation(constraint->resource, void *impl = locked_pointer ?
locked_pointer ? (void*)&locked_pointer_impl : (void*)&confined_pointer_impl, (void *)&locked_pointer_impl : (void *)&confined_pointer_impl;
constraint, pointer_constraint_destroy_resource); wl_resource_set_implementation(constraint->resource, impl, constraint,
pointer_constraint_destroy_resource);
wlr_log(WLR_DEBUG, "new %s_pointer %p (res %p)", wlr_log(WLR_DEBUG, "new %s_pointer %p (res %p)",
locked_pointer ? "locked" : "confined", constraint, constraint->resource); locked_pointer ? "locked" : "confined",
constraint, constraint->resource);
wl_list_insert(&pointer_constraints->constraints, &constraint->link); wl_list_insert(&pointer_constraints->constraints, &constraint->link);
wlr_signal_emit_safe(&pointer_constraints->events.constraint_create, wlr_signal_emit_safe(&pointer_constraints->events.new_constraint,
constraint); constraint);
} }
@ -303,8 +309,7 @@ struct wlr_pointer_constraints_v1 *wlr_pointer_constraints_v1_create(
wl_list_init(&pointer_constraints->resources); wl_list_init(&pointer_constraints->resources);
wl_list_init(&pointer_constraints->constraints); wl_list_init(&pointer_constraints->constraints);
wl_signal_init(&pointer_constraints->events.constraint_create); wl_signal_init(&pointer_constraints->events.new_constraint);
wl_signal_init(&pointer_constraints->events.constraint_destroy);
return pointer_constraints; return pointer_constraints;
} }

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