diff options
Diffstat (limited to 'backend')
| -rw-r--r-- | backend/wayland/seat.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/backend/wayland/seat.c b/backend/wayland/seat.c index 71e04de6..a23a4c91 100644 --- a/backend/wayland/seat.c +++ b/backend/wayland/seat.c @@ -276,6 +276,95 @@ static struct wl_keyboard_listener keyboard_listener = { .repeat_info = keyboard_handle_repeat_info }; +static void touch_coordinates_to_absolute(struct wlr_wl_input_device *device, + wl_fixed_t x, wl_fixed_t y, double *sx, double *sy) { + // TODO: each output needs its own touch + struct wlr_wl_output *output, *tmp; + wl_list_for_each_safe(output, tmp, &device->backend->outputs, link) { + *sx = wl_fixed_to_double(x) / output->wlr_output.width; + *sy = wl_fixed_to_double(y) / output->wlr_output.height; + return; // Choose the first output in the list + } + + *sx = *sy = 0; +} + +static void touch_handle_down(void *data, struct wl_touch *wl_touch, + uint32_t serial, uint32_t time, struct wl_surface *surface, + int32_t id, wl_fixed_t x, wl_fixed_t y) { + struct wlr_wl_input_device *device = data; + assert(device && device->wlr_input_device.touch); + + double sx, sy; + touch_coordinates_to_absolute(device, x, y, &sx, &sy); + struct wlr_event_touch_down event = { + .device = &device->wlr_input_device, + .time_msec = time, + .touch_id = id, + .x = sx, + .y = sy + }; + wlr_signal_emit_safe(&device->wlr_input_device.touch->events.down, &event); +} + +static void touch_handle_up(void *data, struct wl_touch *wl_touch, + uint32_t serial, uint32_t time, int32_t id) { + struct wlr_wl_input_device *device = data; + assert(device && device->wlr_input_device.touch); + + struct wlr_event_touch_up event = { + .device = &device->wlr_input_device, + .time_msec = time, + .touch_id = id, + }; + wlr_signal_emit_safe(&device->wlr_input_device.touch->events.up, &event); +} + +static void touch_handle_motion(void *data, struct wl_touch *wl_touch, + uint32_t time, int32_t id, wl_fixed_t x, wl_fixed_t y) { + struct wlr_wl_input_device *device = data; + assert(device && device->wlr_input_device.touch); + + double sx, sy; + touch_coordinates_to_absolute(device, x, y, &sx, &sy); + struct wlr_event_touch_motion event = { + .device = &device->wlr_input_device, + .time_msec = time, + .touch_id = id, + .x = sx, + .y = sy + }; + wlr_signal_emit_safe(&device->wlr_input_device.touch->events.motion, &event); +} + +static void touch_handle_frame(void *data, struct wl_touch *wl_touch) { + // no-op +} + +static void touch_handle_cancel(void *data, struct wl_touch *wl_touch) { + // no-op +} + +static void touch_handle_shape(void *data, struct wl_touch *wl_touch, + int32_t id, wl_fixed_t major, wl_fixed_t minor) { + // no-op +} + +static void touch_handle_orientation(void *data, struct wl_touch *wl_touch, + int32_t id, wl_fixed_t orientation) { + // no-op +} + +static struct wl_touch_listener touch_listener = { + .down = touch_handle_down, + .up = touch_handle_up, + .motion = touch_handle_motion, + .frame = touch_handle_frame, + .cancel = touch_handle_cancel, + .shape = touch_handle_shape, + .orientation = touch_handle_orientation, +}; + static struct wlr_wl_input_device *get_wl_input_device_from_input_device( struct wlr_input_device *wlr_dev) { assert(wlr_input_device_is_wl(wlr_dev)); @@ -563,6 +652,28 @@ void create_wl_keyboard(struct wl_keyboard *wl_keyboard, struct wlr_wl_backend * wlr_signal_emit_safe(&wl->backend.events.new_input, wlr_dev); } +void create_wl_touch(struct wl_touch *wl_touch, struct wlr_wl_backend *wl) { + struct wlr_wl_input_device *dev = + create_wl_input_device(wl, WLR_INPUT_DEVICE_TOUCH); + if (!dev) { + return; + } + + struct wlr_input_device *wlr_dev = &dev->wlr_input_device; + + wlr_dev->touch = calloc(1, sizeof(*wlr_dev->touch)); + if (!wlr_dev->touch) { + wlr_log_errno(WLR_ERROR, "Allocation failed"); + free(dev); + return; + } + wlr_touch_init(wlr_dev->touch, NULL); + + wl_touch_add_listener(wl_touch, &touch_listener, dev); + wlr_signal_emit_safe(&wl->backend.events.new_input, wlr_dev); +} + + static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat, enum wl_seat_capability caps) { struct wlr_wl_backend *backend = data; @@ -614,6 +725,28 @@ static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat, } assert(backend->keyboard == NULL); // free'ed by input_device_destroy } + + if ((caps & WL_SEAT_CAPABILITY_TOUCH) && backend->touch == NULL) { + wlr_log(WLR_DEBUG, "seat %p offered touch", (void *)wl_seat); + + backend->touch = wl_seat_get_touch(wl_seat); + if (backend->started) { + create_wl_touch(backend->touch, backend); + } + } + if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && backend->touch != NULL) { + wlr_log(WLR_DEBUG, "seat %p dropped touch", (void *)wl_seat); + + struct wlr_input_device *device, *tmp; + wl_list_for_each_safe(device, tmp, &backend->devices, link) { + if (device->type == WLR_INPUT_DEVICE_TOUCH) { + wlr_input_device_destroy(device); + } + } + + wl_touch_release(backend->touch); + backend->touch = NULL; + } } static void seat_handle_name(void *data, struct wl_seat *wl_seat, |