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wlr-seat: pointer grab interface

This commit is contained in:
Tony Crisci 2017-10-05 13:28:26 -04:00
parent 30eabf38b8
commit 17b134e178
3 changed files with 165 additions and 6 deletions
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83
include/wlr/types/wlr_seat.h
View File

@ -24,6 +24,30 @@ struct wlr_seat_handle {
struct wl_list link;
};
struct wlr_seat_pointer_grab;
struct wlr_pointer_grab_interface {
void (*enter)(struct wlr_seat_pointer_grab *grab,
struct wlr_surface *surface, double sx, double sy);
void (*motion)(struct wlr_seat_pointer_grab *grab, uint32_t time,
double sx, double sy);
uint32_t (*button)(struct wlr_seat_pointer_grab *grab, uint32_t time,
uint32_t button, uint32_t state);
void (*axis)(struct wlr_seat_pointer_grab *grab, uint32_t time,
enum wlr_axis_orientation orientation, double value);
void (*cancel)(struct wlr_seat_pointer_grab *grab);
};
/**
* Passed to `wlr_seat_pointer_start_grab()` to start a grab of the pointer. The
* grabber is responsible for handling pointer events for the seat.
*/
struct wlr_seat_pointer_grab {
const struct wlr_pointer_grab_interface *interface;
struct wlr_seat *seat;
void *data;
};
struct wlr_seat_pointer_state {
struct wlr_seat *wlr_seat;
struct wlr_seat_handle *focused_handle;
@ -31,6 +55,9 @@ struct wlr_seat_pointer_state {
struct wl_listener surface_destroy;
struct wl_listener resource_destroy;
struct wlr_seat_pointer_grab *grab;
struct wlr_seat_pointer_grab *default_grab;
};
struct wlr_seat_keyboard {
@ -109,6 +136,8 @@ bool wlr_seat_pointer_surface_has_focus(struct wlr_seat *wlr_seat,
* Send a pointer enter event to the given surface and consider it to be the
* focused surface for the pointer. This will send a leave event to the last
* surface that was entered. Coordinates for the enter event are surface-local.
* Compositor should use `wlr_seat_pointer_notify_enter()` to change pointer
* focus to respect pointer grabs.
*/
void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
struct wlr_surface *surface, double sx, double sy);
@ -120,21 +149,71 @@ void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat);
/**
* Send a motion event to the surface with pointer focus. Coordinates for the
* motion event are surface-local.
* motion event are surface-local. Compositors should use
* `wlr_seat_pointer_notify_motion()` to send motion events to respect pointer
* grabs.
*/
void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
double sx, double sy);
/**
* Send a button event to the surface with pointer focus. Coordinates for the
* button event are surface-local. Returns the serial.
* button event are surface-local. Returns the serial. Compositors should use
* `wlr_seat_pointer_notify_button()` to send button events to respect pointer
* grabs.
*/
uint32_t wlr_seat_pointer_send_button(struct wlr_seat *wlr_seat, uint32_t time,
uint32_t button, uint32_t state);
/**
* Send an axis event to the surface with pointer focus. Compositors should use
* `wlr_seat_pointer_notify_axis()` to send axis events to respect pointer
* grabs.
**/
void wlr_seat_pointer_send_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value);
/**
* Start a grab of the pointer of this seat. The grabber is responsible for
* handling all pointer events until the grab ends.
*/
void wlr_seat_pointer_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_pointer_grab *grab);
/**
* End the grab of the pointer of this seat. This reverts the grab back to the
* default grab for the pointer.
*/
void wlr_seat_pointer_end_grab(struct wlr_seat *wlr_seat);
/**
* Notify the seat of a pointer enter event to the given surface and request it to be the
* focused surface for the pointer. Pass surface-local coordinates where the
* enter occurred.
*/
void wlr_seat_pointer_notify_enter(struct wlr_seat *wlr_seat,
struct wlr_surface *surface, double sx, double sy);
/**
* Notify the seat of motion over the given surface. Pass surface-local
* coordinates where the pointer motion occurred.
*/
void wlr_seat_pointer_notify_motion(struct wlr_seat *wlr_seat, uint32_t time,
double sx, double sy);
/**
* Notify the seat that a button has been pressed. Returns the serial of the
* button press or zero if no button press was sent.
*/
uint32_t wlr_seat_pointer_notify_button(struct wlr_seat *wlr_seat,
uint32_t time, uint32_t button, uint32_t state);
/**
* Notify the seat of an axis event.
*/
void wlr_seat_pointer_notify_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value);
/**
* Attaches this keyboard to the seat. Key events from this keyboard will be
* propegated to the focused client.

8
rootston/cursor.c
View File

@ -55,8 +55,8 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
view = view_at(desktop, input->cursor->x, input->cursor->y, &surface,
&sx, &sy);
if (view) {
wlr_seat_pointer_enter(input->wl_seat, surface, sx, sy);
wlr_seat_pointer_send_motion(input->wl_seat, time, sx, sy);
wlr_seat_pointer_notify_enter(input->wl_seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(input->wl_seat, time, sx, sy);
} else {
wlr_seat_pointer_clear_focus(input->wl_seat);
}
@ -137,7 +137,7 @@ static void handle_cursor_axis(struct wl_listener *listener, void *data) {
struct roots_input *input =
wl_container_of(listener, input, cursor_axis);
struct wlr_event_pointer_axis *event = data;
wlr_seat_pointer_send_axis(input->wl_seat, event->time_sec,
wlr_seat_pointer_notify_axis(input->wl_seat, event->time_sec,
event->orientation, event->delta);
}
@ -149,7 +149,7 @@ static void do_cursor_button_press(struct roots_input *input,
double sx, sy;
struct roots_view *view = view_at(desktop,
input->cursor->x, input->cursor->y, &surface, &sx, &sy);
uint32_t serial = wlr_seat_pointer_send_button(
uint32_t serial = wlr_seat_pointer_notify_button(
input->wl_seat, time, button, state);
int i;
switch (state) {

80
types/wlr_seat.c
View File

@ -173,6 +173,38 @@ static void wl_seat_bind(struct wl_client *wl_client, void *_wlr_seat,
wl_signal_emit(&wlr_seat->events.client_bound, handle);
}
static void default_pointer_enter(struct wlr_seat_pointer_grab *grab,
struct wlr_surface *surface, double sx, double sy) {
wlr_seat_pointer_enter(grab->seat, surface, sx, sy);
}
static void default_pointer_motion(struct wlr_seat_pointer_grab *grab,
uint32_t time, double sx, double sy) {
wlr_seat_pointer_send_motion(grab->seat, time, sx, sy);
}
static uint32_t default_pointer_button(struct wlr_seat_pointer_grab *grab,
uint32_t time, uint32_t button, uint32_t state) {
return wlr_seat_pointer_send_button(grab->seat, time, button, state);
}
static void default_pointer_axis(struct wlr_seat_pointer_grab *grab,
uint32_t time, enum wlr_axis_orientation orientation, double value) {
wlr_seat_pointer_send_axis(grab->seat, time, orientation, value);
}
static void default_pointer_cancel(struct wlr_seat_pointer_grab *grab) {
// cannot be cancelled
}
static const struct wlr_pointer_grab_interface default_pointer_grab_impl = {
.enter = default_pointer_enter,
.motion = default_pointer_motion,
.button = default_pointer_button,
.axis = default_pointer_axis,
.cancel = default_pointer_cancel,
};
struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
struct wlr_seat *wlr_seat = calloc(1, sizeof(struct wlr_seat));
if (!wlr_seat) {
@ -183,6 +215,17 @@ struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
wl_list_init(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_init(&wlr_seat->pointer_state.resource_destroy.link);
struct wlr_seat_pointer_grab *default_grab =
calloc(1, sizeof(struct wlr_seat_pointer_grab));
if (!default_grab) {
free(wlr_seat);
return NULL;
}
default_grab->interface = &default_pointer_grab_impl;
default_grab->seat = wlr_seat;
wlr_seat->pointer_state.default_grab = default_grab;
wlr_seat->pointer_state.grab = default_grab;
wlr_seat->keyboard_state.wlr_seat = wlr_seat;
wl_list_init(&wlr_seat->keyboard_state.resource_destroy.link);
wl_list_init(
@ -218,6 +261,7 @@ void wlr_seat_destroy(struct wlr_seat *wlr_seat) {
}
wl_global_destroy(wlr_seat->wl_global);
free(wlr_seat->pointer_state.default_grab);
free(wlr_seat->data_device);
free(wlr_seat->name);
free(wlr_seat);
@ -386,6 +430,42 @@ void wlr_seat_pointer_send_axis(struct wlr_seat *wlr_seat, uint32_t time,
pointer_send_frame(pointer);
}
void wlr_seat_pointer_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_pointer_grab *grab) {
grab->seat = wlr_seat;
wlr_seat->pointer_state.grab = grab;
// TODO: replay the last enter
}
void wlr_seat_pointer_end_grab(struct wlr_seat *wlr_seat) {
wlr_seat->pointer_state.grab = wlr_seat->pointer_state.default_grab;
// TODO: replay the last enter
}
void wlr_seat_pointer_notify_enter(struct wlr_seat *wlr_seat,
struct wlr_surface *surface, double sx, double sy) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->enter(grab, surface, sx, sy);
}
void wlr_seat_pointer_notify_motion(struct wlr_seat *wlr_seat, uint32_t time,
double sx, double sy) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->motion(grab, time, sx, sy);
}
uint32_t wlr_seat_pointer_notify_button(struct wlr_seat *wlr_seat,
uint32_t time, uint32_t button, uint32_t state) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
return grab->interface->button(grab, time, button, state);
}
void wlr_seat_pointer_notify_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->axis(grab, time, orientation, value);
}
static void keyboard_switch_seat_keyboard(struct wlr_seat_handle *handle,
struct wlr_seat_keyboard *seat_kb) {
if (handle->seat_keyboard == seat_kb) {