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352 lines
11 KiB
352 lines
11 KiB
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_input_device.h>
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#include <wlr/util/log.h>
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static void resource_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static void wl_pointer_set_cursor(struct wl_client *client,
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struct wl_resource *resource,
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uint32_t serial,
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struct wl_resource *surface,
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int32_t hotspot_x,
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int32_t hotspot_y) {
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wlr_log(L_DEBUG, "TODO: wl_pointer_set_cursor");
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}
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static const struct wl_pointer_interface wl_pointer_impl = {
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.set_cursor = wl_pointer_set_cursor,
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.release = resource_destroy
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};
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static void wl_pointer_destroy(struct wl_resource *resource) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
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if (handle->pointer) {
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handle->pointer = NULL;
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}
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}
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static void wl_seat_get_pointer(struct wl_client *client,
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struct wl_resource *_handle, uint32_t id) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
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if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_POINTER)) {
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return;
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}
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if (handle->pointer) {
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// TODO: this is probably a protocol violation but it simplifies our
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// code and it'd be stupid for clients to create several pointers for
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// the same seat
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wl_resource_destroy(handle->pointer);
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}
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handle->pointer = wl_resource_create(client, &wl_pointer_interface,
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wl_resource_get_version(_handle), id);
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wl_resource_set_implementation(handle->pointer, &wl_pointer_impl,
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handle, &wl_pointer_destroy);
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}
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static const struct wl_keyboard_interface wl_keyboard_impl = {
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.release = resource_destroy
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};
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static void wl_keyboard_destroy(struct wl_resource *resource) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
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if (handle->keyboard) {
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handle->keyboard = NULL;
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}
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}
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static void wl_seat_get_keyboard(struct wl_client *client,
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struct wl_resource *_handle, uint32_t id) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
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if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_KEYBOARD)) {
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return;
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}
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if (handle->keyboard) {
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// TODO: this is probably a protocol violation but it simplifies our
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// code and it'd be stupid for clients to create several pointers for
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// the same seat
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wl_resource_destroy(handle->keyboard);
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}
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handle->keyboard = wl_resource_create(client, &wl_keyboard_interface,
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wl_resource_get_version(_handle), id);
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wl_resource_set_implementation(handle->keyboard, &wl_keyboard_impl,
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handle, &wl_keyboard_destroy);
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wl_signal_emit(&handle->wlr_seat->events.keyboard_bound, handle);
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}
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static const struct wl_touch_interface wl_touch_impl = {
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.release = resource_destroy
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};
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static void wl_touch_destroy(struct wl_resource *resource) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
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if (handle->touch) {
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handle->touch = NULL;
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}
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}
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static void wl_seat_get_touch(struct wl_client *client,
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struct wl_resource *_handle, uint32_t id) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
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if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_TOUCH)) {
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return;
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}
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if (handle->touch) {
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// TODO: this is probably a protocol violation but it simplifies our
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// code and it'd be stupid for clients to create several pointers for
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// the same seat
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wl_resource_destroy(handle->touch);
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}
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handle->touch = wl_resource_create(client, &wl_touch_interface,
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wl_resource_get_version(_handle), id);
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wl_resource_set_implementation(handle->touch, &wl_touch_impl,
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handle, &wl_touch_destroy);
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}
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static void wlr_seat_handle_resource_destroy(struct wl_resource *resource) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
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if (handle == handle->wlr_seat->pointer_state.focused_handle) {
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handle->wlr_seat->pointer_state.focused_handle = NULL;
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}
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if (handle->pointer) {
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wl_resource_destroy(handle->pointer);
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}
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if (handle->keyboard) {
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wl_resource_destroy(handle->keyboard);
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}
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if (handle->touch) {
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wl_resource_destroy(handle->touch);
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}
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if (handle->data_device) {
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wl_resource_destroy(handle->data_device);
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}
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wl_signal_emit(&handle->wlr_seat->events.client_unbound, handle);
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wl_list_remove(&handle->link);
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free(handle);
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}
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struct wl_seat_interface wl_seat_impl = {
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.get_pointer = wl_seat_get_pointer,
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.get_keyboard = wl_seat_get_keyboard,
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.get_touch = wl_seat_get_touch,
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.release = resource_destroy
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};
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static void wl_seat_bind(struct wl_client *wl_client, void *_wlr_seat,
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uint32_t version, uint32_t id) {
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struct wlr_seat *wlr_seat = _wlr_seat;
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assert(wl_client && wlr_seat);
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if (version > 6) {
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wlr_log(L_ERROR,
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"Client requested unsupported wl_seat version, disconnecting");
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wl_client_destroy(wl_client);
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return;
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}
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struct wlr_seat_handle *handle = calloc(1, sizeof(struct wlr_seat_handle));
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handle->wl_resource = wl_resource_create(
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wl_client, &wl_seat_interface, version, id);
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handle->wlr_seat = wlr_seat;
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wl_resource_set_implementation(handle->wl_resource, &wl_seat_impl,
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handle, wlr_seat_handle_resource_destroy);
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wl_list_insert(&wlr_seat->handles, &handle->link);
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wl_seat_send_capabilities(handle->wl_resource, wlr_seat->capabilities);
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wl_signal_emit(&wlr_seat->events.client_bound, handle);
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}
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struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
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struct wlr_seat *wlr_seat = calloc(1, sizeof(struct wlr_seat));
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if (!wlr_seat) {
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return NULL;
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}
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wlr_seat->pointer_state.wlr_seat = wlr_seat;
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struct wl_global *wl_global = wl_global_create(display,
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&wl_seat_interface, 6, wlr_seat, wl_seat_bind);
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if (!wl_global) {
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free(wlr_seat);
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return NULL;
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}
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wlr_seat->wl_global = wl_global;
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wlr_seat->display = display;
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wlr_seat->name = strdup(name);
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wl_list_init(&wlr_seat->handles);
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wl_signal_init(&wlr_seat->events.client_bound);
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wl_signal_init(&wlr_seat->events.client_unbound);
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wl_signal_init(&wlr_seat->events.keyboard_bound);
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wl_list_init(&wlr_seat->pointer_state.focus_resource_destroy_listener.link);
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wl_list_init(&wlr_seat->pointer_state.focus_surface_destroy_listener.link);
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return wlr_seat;
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}
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void wlr_seat_destroy(struct wlr_seat *wlr_seat) {
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if (!wlr_seat) {
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return;
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}
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struct wlr_seat_handle *handle, *tmp;
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wl_list_for_each_safe(handle, tmp, &wlr_seat->handles, link) {
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// will destroy other resources as well
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wl_resource_destroy(handle->wl_resource);
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}
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wl_global_destroy(wlr_seat->wl_global);
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free(wlr_seat->data_device);
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free(wlr_seat->name);
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free(wlr_seat);
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}
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struct wlr_seat_handle *wlr_seat_handle_for_client(struct wlr_seat *wlr_seat,
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struct wl_client *client) {
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assert(wlr_seat);
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struct wlr_seat_handle *handle;
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wl_list_for_each(handle, &wlr_seat->handles, link) {
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if (wl_resource_get_client(handle->wl_resource) == client) {
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return handle;
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}
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}
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return NULL;
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}
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void wlr_seat_set_capabilities(struct wlr_seat *wlr_seat,
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uint32_t capabilities) {
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wlr_seat->capabilities = capabilities;
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struct wlr_seat_handle *handle;
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wl_list_for_each(handle, &wlr_seat->handles, link) {
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wl_seat_send_capabilities(handle->wl_resource, capabilities);
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}
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}
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void wlr_seat_set_name(struct wlr_seat *wlr_seat, const char *name) {
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free(wlr_seat->name);
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wlr_seat->name = strdup(name);
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struct wlr_seat_handle *handle;
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wl_list_for_each(handle, &wlr_seat->handles, link) {
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wl_seat_send_name(handle->wl_resource, name);
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}
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}
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bool wlr_seat_pointer_surface_has_focus(struct wlr_seat *wlr_seat,
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struct wlr_surface *surface) {
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return surface == wlr_seat->pointer_state.focused_surface;
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}
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static void handle_pointer_focus_surface_destroyed(
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struct wl_listener *listener, void *data) {
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struct wlr_seat_pointer_state *state =
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wl_container_of(listener, state, focus_surface_destroy_listener);
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state->focused_surface = NULL;
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wlr_seat_pointer_clear_focus(state->wlr_seat);
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}
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static void handle_pointer_focus_resource_destroyed(
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struct wl_listener *listener, void *data) {
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struct wlr_seat_pointer_state *state =
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wl_container_of(listener, state, focus_resource_destroy_listener);
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state->focused_surface = NULL;
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wlr_seat_pointer_clear_focus(state->wlr_seat);
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}
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void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
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struct wlr_surface *surface, double sx, double sy) {
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assert(wlr_seat);
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if (wlr_seat->pointer_state.focused_surface == surface) {
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// this surface already got an enter notify
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return;
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}
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struct wlr_seat_handle *handle = NULL;
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if (surface) {
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struct wl_client *client = wl_resource_get_client(surface->resource);
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handle = wlr_seat_handle_for_client(wlr_seat, client);
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}
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struct wlr_seat_handle *focused_handle =
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wlr_seat->pointer_state.focused_handle;
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struct wlr_surface *focused_surface =
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wlr_seat->pointer_state.focused_surface;
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// leave the previously entered surface
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if (focused_handle && focused_surface) {
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uint32_t serial = wl_display_next_serial(wlr_seat->display);
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wl_pointer_send_leave(focused_handle->pointer, serial,
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focused_surface->resource);
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wl_pointer_send_frame(focused_handle->pointer);
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}
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// enter the current surface
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if (handle) {
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uint32_t serial = wl_display_next_serial(wlr_seat->display);
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wl_pointer_send_enter(handle->pointer, serial, surface->resource,
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wl_fixed_from_double(sx), wl_fixed_from_double(sy));
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wl_pointer_send_frame(handle->pointer);
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}
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// reinitialize the focus destroy events
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wl_list_remove(
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&wlr_seat->pointer_state.focus_surface_destroy_listener.link);
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wl_list_init(&wlr_seat->pointer_state.focus_surface_destroy_listener.link);
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wl_list_remove(
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&wlr_seat->pointer_state.focus_resource_destroy_listener.link);
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wl_list_init(&wlr_seat->pointer_state.focus_resource_destroy_listener.link);
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if (surface) {
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wl_signal_add(&surface->signals.destroy,
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&wlr_seat->pointer_state.focus_surface_destroy_listener);
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wl_resource_add_destroy_listener(surface->resource,
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&wlr_seat->pointer_state.focus_resource_destroy_listener);
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wlr_seat->pointer_state.focus_resource_destroy_listener.notify =
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handle_pointer_focus_resource_destroyed;
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wlr_seat->pointer_state.focus_surface_destroy_listener.notify =
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handle_pointer_focus_surface_destroyed;
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}
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wlr_seat->pointer_state.focused_handle = handle;
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wlr_seat->pointer_state.focused_surface = surface;
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// TODO: send focus change event
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}
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void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat) {
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wlr_seat_pointer_enter(wlr_seat, NULL, 0, 0);
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}
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void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
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double sx, double sy) {
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if (!wlr_seat->pointer_state.focused_handle) {
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// nobody to send the event to
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return;
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}
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wl_pointer_send_motion(wlr_seat->pointer_state.focused_handle->pointer,
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time, wl_fixed_from_double(sx), wl_fixed_from_double(sy));
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wl_pointer_send_frame(wlr_seat->pointer_state.focused_handle->pointer);
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}
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void wlr_seat_pointer_send_button(struct wlr_seat *wlr_seat, uint32_t time,
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uint32_t button, uint32_t state) {
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if (!wlr_seat->pointer_state.focused_handle) {
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// nobody to send the event to
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return;
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}
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uint32_t serial = wl_display_next_serial(wlr_seat->display);
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wl_pointer_send_button(wlr_seat->pointer_state.focused_handle->pointer,
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serial, time, button, state);
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wl_pointer_send_frame(wlr_seat->pointer_state.focused_handle->pointer);
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}
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