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#define _XOPEN_SOURCE 700
#ifdef __linux__
#include <linux/input-event-codes.h>
#elif __FreeBSD__
#include <dev/evdev/input-event-codes.h>
#endif
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include "list.h"
#include "log.h"
#include "sway/input/cursor.h"
#include "sway/layers.h"
#include "sway/output.h"
#include "sway/tree/view.h"
#include "wlr-layer-shell-unstable-v1-protocol.h"
static void cursor_update_position(struct sway_cursor *cursor) {
double x = cursor->cursor->x;
double y = cursor->cursor->y;
cursor->x = x;
cursor->y = y;
}
static struct wlr_surface *layer_surface_at(struct sway_output *output,
struct wl_list *layer, double ox, double oy, double *sx, double *sy) {
struct sway_layer_surface *sway_layer;
wl_list_for_each_reverse(sway_layer, layer, link) {
struct wlr_surface *wlr_surface =
sway_layer->layer_surface->surface;
double _sx = ox - sway_layer->geo.x;
double _sy = oy - sway_layer->geo.y;
// TODO: Test popups/subsurfaces
if (wlr_surface_point_accepts_input(wlr_surface, _sx, _sy)) {
*sx = _sx;
*sy = _sy;
return wlr_surface;
}
}
return NULL;
}
/**
* Returns the container at the cursor's position. If there is a surface at that
* location, it is stored in **surface (it may not be a view).
*/
static struct sway_container *container_at_cursor(struct sway_cursor *cursor,
struct wlr_surface **surface, double *sx, double *sy) {
// check for unmanaged views first
struct wl_list *unmanaged = &root_container.sway_root->unmanaged_views;
struct sway_view *view;
wl_list_for_each_reverse(view, unmanaged, unmanaged_view_link) {
if (view->type == SWAY_XWAYLAND_VIEW) {
struct wlr_xwayland_surface *xsurface = view->wlr_xwayland_surface;
struct wlr_box box = {
.x = xsurface->x,
.y = xsurface->y,
.width = xsurface->width,
.height = xsurface->height,
};
if (wlr_box_contains_point(&box, cursor->x, cursor->y)) {
*surface = xsurface->surface;
*sx = cursor->x - box.x;
*sy = cursor->y - box.y;
return view->swayc;
}
}
}
// find the output the cursor is on
struct wlr_output_layout *output_layout =
root_container.sway_root->output_layout;
struct wlr_output *wlr_output =
wlr_output_layout_output_at(output_layout, cursor->x, cursor->y);
if (wlr_output == NULL) {
return NULL;
}
struct sway_output *output = wlr_output->data;
double ox = cursor->x, oy = cursor->y;
wlr_output_layout_output_coords(output_layout, wlr_output, &ox, &oy);
// find the focused workspace on the output for this seat
struct sway_container *ws =
sway_seat_get_focus_inactive(cursor->seat, output->swayc);
if (ws && ws->type != C_WORKSPACE) {
ws = container_parent(ws, C_WORKSPACE);
}
if (!ws) {
return output->swayc;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
ox, oy, sx, sy))) {
return ws;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
ox, oy, sx, sy))) {
return ws;
}
struct sway_container *c;
if ((c = container_at(ws, cursor->x, cursor->y, surface, sx, sy))) {
return c;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
ox, oy, sx, sy))) {
return ws;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
ox, oy, sx, sy))) {
return ws;
}
return NULL;
}
static void cursor_send_pointer_motion(struct sway_cursor *cursor,
uint32_t time) {
struct wlr_seat *seat = cursor->seat->wlr_seat;
struct wlr_surface *surface = NULL;
double sx, sy;
container_at_cursor(cursor, &surface, &sx, &sy);
// reset cursor if switching between clients
struct wl_client *client = NULL;
if (surface != NULL) {
client = wl_resource_get_client(surface->resource);
}
if (client != cursor->image_client) {
wlr_xcursor_manager_set_cursor_image(cursor->xcursor_manager,
"left_ptr", cursor->cursor);
cursor->image_client = client;
}
// send pointer enter/leave
if (surface != NULL) {
wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
} else {
wlr_seat_pointer_clear_focus(seat);
}
}
static void handle_cursor_motion(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, motion);
struct wlr_event_pointer_motion *event = data;
wlr_cursor_move(cursor->cursor, event->device,
event->delta_x, event->delta_y);
cursor_update_position(cursor);
cursor_send_pointer_motion(cursor, event->time_msec);
}
static void handle_cursor_motion_absolute(struct wl_listener *listener,
void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, motion_absolute);
struct wlr_event_pointer_motion_absolute *event = data;
wlr_cursor_warp_absolute(cursor->cursor, event->device, event->x, event->y);
cursor_update_position(cursor);
cursor_send_pointer_motion(cursor, event->time_msec);
}
static void handle_cursor_button(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, button);
struct wlr_event_pointer_button *event = data;
if (event->button == BTN_LEFT) {
struct wlr_surface *surface = NULL;
double sx, sy;
struct sway_container *cont =
container_at_cursor(cursor, &surface, &sx, &sy);
// Avoid moving keyboard focus from a surface that accepts it to one
// that does not unless the change would move us to a new workspace.
//
// This prevents, for example, losing focus when clicking on swaybar.
//
// TODO: Replace this condition with something like
// !surface_accepts_keyboard_input
if (surface && cont->type != C_VIEW) {
struct sway_container *new_ws = cont;
if (new_ws && new_ws->type != C_WORKSPACE) {
new_ws = container_parent(new_ws, C_WORKSPACE);
}
struct sway_container *old_ws = sway_seat_get_focus(cursor->seat);
if (old_ws && old_ws->type != C_WORKSPACE) {
old_ws = container_parent(old_ws, C_WORKSPACE);
}
if (new_ws != old_ws) {
sway_seat_set_focus(cursor->seat, cont);
}
} else {
sway_seat_set_focus(cursor->seat, cont);
}
}
wlr_seat_pointer_notify_button(cursor->seat->wlr_seat, event->time_msec,
event->button, event->state);
}
static void handle_cursor_axis(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, axis);
struct wlr_event_pointer_axis *event = data;
wlr_seat_pointer_notify_axis(cursor->seat->wlr_seat, event->time_msec,
event->orientation, event->delta);
}
static void handle_touch_down(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_down);
struct wlr_event_touch_down *event = data;
wlr_log(L_DEBUG, "TODO: handle touch down event: %p", event);
}
static void handle_touch_up(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_up);
struct wlr_event_touch_up *event = data;
wlr_log(L_DEBUG, "TODO: handle touch up event: %p", event);
}
static void handle_touch_motion(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, touch_motion);
struct wlr_event_touch_motion *event = data;
wlr_log(L_DEBUG, "TODO: handle touch motion event: %p", event);
}
static void handle_tool_axis(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_axis);
struct wlr_event_tablet_tool_axis *event = data;
wlr_log(L_DEBUG, "TODO: handle tool axis event: %p", event);
}
static void handle_tool_tip(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_tip);
struct wlr_event_tablet_tool_tip *event = data;
wlr_log(L_DEBUG, "TODO: handle tool tip event: %p", event);
}
static void handle_request_set_cursor(struct wl_listener *listener,
void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, request_set_cursor);
struct wlr_seat_pointer_request_set_cursor_event *event = data;
struct wl_client *focused_client = NULL;
struct wlr_surface *focused_surface =
cursor->seat->wlr_seat->pointer_state.focused_surface;
if (focused_surface != NULL) {
focused_client = wl_resource_get_client(focused_surface->resource);
}
// TODO: check cursor mode
if (focused_client == NULL ||
event->seat_client->client != focused_client) {
wlr_log(L_DEBUG, "denying request to set cursor from unfocused client");
return;
}
wlr_cursor_set_surface(cursor->cursor, event->surface, event->hotspot_x,
event->hotspot_y);
cursor->image_client = focused_client;
}
void sway_cursor_destroy(struct sway_cursor *cursor) {
if (!cursor) {
return;
}
wlr_xcursor_manager_destroy(cursor->xcursor_manager);
wlr_cursor_destroy(cursor->cursor);
free(cursor);
}
struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
struct sway_cursor *cursor = calloc(1, sizeof(struct sway_cursor));
if (!sway_assert(cursor, "could not allocate sway cursor")) {
return NULL;
}
struct wlr_cursor *wlr_cursor = wlr_cursor_create();
if (!sway_assert(wlr_cursor, "could not allocate wlr cursor")) {
free(cursor);
return NULL;
}
cursor->seat = seat;
wlr_cursor_attach_output_layout(wlr_cursor,
root_container.sway_root->output_layout);
// input events
wl_signal_add(&wlr_cursor->events.motion, &cursor->motion);
cursor->motion.notify = handle_cursor_motion;
wl_signal_add(&wlr_cursor->events.motion_absolute,
&cursor->motion_absolute);
cursor->motion_absolute.notify = handle_cursor_motion_absolute;
wl_signal_add(&wlr_cursor->events.button, &cursor->button);
cursor->button.notify = handle_cursor_button;
wl_signal_add(&wlr_cursor->events.axis, &cursor->axis);
cursor->axis.notify = handle_cursor_axis;
wl_signal_add(&wlr_cursor->events.touch_down, &cursor->touch_down);
cursor->touch_down.notify = handle_touch_down;
wl_signal_add(&wlr_cursor->events.touch_up, &cursor->touch_up);
cursor->touch_up.notify = handle_touch_up;
wl_signal_add(&wlr_cursor->events.touch_motion,
&cursor->touch_motion);
cursor->touch_motion.notify = handle_touch_motion;
wl_signal_add(&wlr_cursor->events.tablet_tool_axis,
&cursor->tool_axis);
cursor->tool_axis.notify = handle_tool_axis;
wl_signal_add(&wlr_cursor->events.tablet_tool_tip, &cursor->tool_tip);
cursor->tool_tip.notify = handle_tool_tip;
wl_signal_add(&seat->wlr_seat->events.request_set_cursor,
&cursor->request_set_cursor);
cursor->request_set_cursor.notify = handle_request_set_cursor;
cursor->cursor = wlr_cursor;
return cursor;
}
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