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#define _POSIX_C_SOURCE 200809L
#include <wlr/types/wlr_cursor.h>
#include "sway/input/cursor.h"
#include "sway/input/seat.h"
#include "sway/tree/view.h"
struct seatop_down_event {
struct sway_container *con;
double ref_lx, ref_ly; // cursor's x/y at start of op
double ref_con_lx, ref_con_ly; // container's x/y at start of op
bool moved;
};
static void handle_motion(struct sway_seat *seat, uint32_t time_msec) {
struct seatop_down_event *e = seat->seatop_data;
struct sway_container *con = e->con;
if (seat_is_input_allowed(seat, con->view->surface)) {
double moved_x = seat->cursor->cursor->x - e->ref_lx;
double moved_y = seat->cursor->cursor->y - e->ref_ly;
double sx = e->ref_con_lx + moved_x;
double sy = e->ref_con_ly + moved_y;
wlr_seat_pointer_notify_motion(seat->wlr_seat, time_msec, sx, sy);
}
e->moved = true;
}
static void handle_finish(struct sway_seat *seat) {
struct seatop_down_event *e = seat->seatop_data;
// Set the cursor's previous coords to the x/y at the start of the
// operation, so the container change will be detected if using
// focus_follows_mouse and the cursor moved off the original container
// during the operation.
seat->cursor->previous.x = e->ref_lx;
seat->cursor->previous.y = e->ref_ly;
if (e->moved) {
cursor_send_pointer_motion(seat->cursor, 0);
}
}
static void handle_abort(struct sway_seat *seat) {
cursor_set_image(seat->cursor, "left_ptr", NULL);
}
static void handle_unref(struct sway_seat *seat, struct sway_container *con) {
struct seatop_down_event *e = seat->seatop_data;
if (e->con == con) {
seatop_abort(seat);
}
}
static const struct sway_seatop_impl seatop_impl = {
.motion = handle_motion,
.finish = handle_finish,
.abort = handle_abort,
.unref = handle_unref,
};
void seatop_begin_down(struct sway_seat *seat,
struct sway_container *con, uint32_t button, int sx, int sy) {
seatop_abort(seat);
struct seatop_down_event *e =
calloc(1, sizeof(struct seatop_down_event));
if (!e) {
return;
}
e->con = con;
e->ref_lx = seat->cursor->cursor->x;
e->ref_ly = seat->cursor->cursor->y;
e->ref_con_lx = sx;
e->ref_con_ly = sy;
e->moved = false;
seat->seatop_impl = &seatop_impl;
seat->seatop_data = e;
seat->seatop_button = button;
container_raise_floating(con);
}
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