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authorDrew DeVault <sir@cmpwn.com>2017-08-16 08:50:43 -0400
committernyorain <nyorain@gmail.com>2017-08-17 12:57:04 +0200
commitaf5db7a44c409f2f333d52ddf339f7604ffe1d3e (patch)
treecb47599d135922cea43e244925fc09bc202dbb5b
parente7fa4f12e16cf2a38b5bea064e89a53d88857274 (diff)
Initial pass on wlr_seat
-rw-r--r--include/wlr/types/wlr_seat.h59
-rw-r--r--types/meson.build1
-rw-r--r--types/wlr_seat.c156
3 files changed, 216 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_seat.h b/include/wlr/types/wlr_seat.h
new file mode 100644
index 00000000..15efa486
--- /dev/null
+++ b/include/wlr/types/wlr_seat.h
@@ -0,0 +1,59 @@
+#ifndef _WLR_TYPES_SEAT_H
+#define _WLR_TYPES_SEAT_H
+#include <wayland-server.h>
+
+/**
+ * Contains state for a single client's bound wl_seat resource and can be used
+ * to issue input events to that client. The lifetime of these objects is
+ * managed by wlr_seat; some may be NULL.
+ */
+struct wlr_seat_handle {
+ struct wl_resource *wl_resource;
+ struct wlr_seat *wlr_seat;
+
+ struct wl_resource *pointer;
+ struct wl_resource *keyboard;
+ struct wl_resource *touch;
+
+ struct wl_list link;
+};
+
+struct wlr_seat {
+ struct wl_global *wl_global;
+ struct wl_list handles;
+ char *name;
+ uint32_t capabilities;
+
+ struct {
+ struct wl_signal client_bound;
+ struct wl_signal client_unbound;
+ } events;
+
+ void *data;
+};
+
+
+/**
+ * Allocates a new wlr_seat and adds a wl_seat global to the display.
+ */
+struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name);
+/**
+ * Destroys a wlr_seat and removes its wl_seat global.
+ */
+void wlr_seat_destroy(struct wlr_seat *wlr_seat);
+/**
+ * Gets a wlr_seat_handle for the specified client, or returns NULL if no
+ * handle is bound for that client.
+ */
+struct wlr_seat_handle *wlr_seat_handle_for_client(struct wlr_seat *wlr_seat,
+ struct wl_client *client);
+/**
+ * Updates the capabilities available on this seat.
+ */
+void wlr_seat_set_capabilities(struct wlr_seat *wlr_seat, uint32_t capabilities);
+/**
+ * Updates the name of this seat.
+ */
+void wlr_seat_set_name(struct wlr_seat *wlr_seat, const char *name);
+
+#endif
diff --git a/types/meson.build b/types/meson.build
index 943c83c3..61dd913c 100644
--- a/types/meson.build
+++ b/types/meson.build
@@ -4,6 +4,7 @@ lib_wlr_types = static_library('wlr_types', files(
'wlr_output.c',
'wlr_pointer.c',
'wlr_region.c',
+ 'wlr_seat.c',
'wlr_surface.c',
'wlr_tablet_pad.c',
'wlr_tablet_tool.c',
diff --git a/types/wlr_seat.c b/types/wlr_seat.c
new file mode 100644
index 00000000..2d79bdfe
--- /dev/null
+++ b/types/wlr_seat.c
@@ -0,0 +1,156 @@
+#define _POSIX_C_SOURCE 200809L
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_seat.h>
+#include <wlr/util/log.h>
+
+static void wl_pointer_set_cursor(struct wl_client *client,
+ struct wl_resource *resource,
+ uint32_t serial,
+ struct wl_resource *surface,
+ int32_t hotspot_x,
+ int32_t hotspot_y) {
+ wlr_log(L_DEBUG, "TODO: wl_pointer_set_cursor");
+}
+
+static void wl_pointer_destroy(struct wl_resource *resource) {
+ struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
+ if (handle->pointer) {
+ wl_resource_destroy(handle->pointer);
+ handle->pointer = NULL;
+ }
+}
+
+static void wl_pointer_release(struct wl_client *client,
+ struct wl_resource *resource) {
+ wl_pointer_destroy(resource);
+}
+
+struct wl_pointer_interface wl_pointer_impl = {
+ .set_cursor = wl_pointer_set_cursor,
+ .release = wl_pointer_release
+};
+
+static void wl_seat_get_pointer(struct wl_client *client,
+ struct wl_resource *_handle, uint32_t id) {
+ struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
+ if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_KEYBOARD)) {
+ // TODO: Show error?
+ return;
+ }
+ if (handle->pointer) {
+ // TODO: this is probably a protocol violation but it simplifies our
+ // code and it'd be stupid for clients to create several pointers for
+ // the same seat
+ wl_resource_destroy(handle->pointer);
+ }
+ handle->pointer = wl_resource_create(client, &wl_pointer_interface, 5, id);
+ wl_resource_set_implementation(handle->pointer, &wl_pointer_impl,
+ handle, NULL);
+}
+
+static void wl_seat_get_keyboard(struct wl_client *client,
+ struct wl_resource *_handle, uint32_t id) {
+ wlr_log(L_DEBUG, "TODO: wl_seat_get_keyboard");
+}
+
+static void wl_seat_get_touch(struct wl_client *client,
+ struct wl_resource *_handle, uint32_t id) {
+ wlr_log(L_DEBUG, "TODO: wl_seat_get_touch");
+}
+
+static void wl_seat_destroy(struct wl_resource *resource) {
+ struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
+ if (handle->pointer) {
+ wl_resource_destroy(handle->pointer);
+ }
+ if (handle->keyboard) {
+ wl_resource_destroy(handle->pointer);
+ }
+ if (handle->touch) {
+ wl_resource_destroy(handle->pointer);
+ }
+ wl_signal_emit(&handle->wlr_seat->events.client_unbound, handle);
+ wl_list_remove(&handle->link);
+ free(handle);
+}
+
+static void wl_seat_release(struct wl_client *client,
+ struct wl_resource *resource) {
+ wl_seat_destroy(resource);
+}
+
+struct wl_seat_interface wl_seat_impl = {
+ .get_pointer = wl_seat_get_pointer,
+ .get_keyboard = wl_seat_get_keyboard,
+ .get_touch = wl_seat_get_touch,
+ .release = wl_seat_release
+};
+
+static void wl_seat_bind(struct wl_client *wl_client, void *_wlr_seat,
+ uint32_t version, uint32_t id) {
+ struct wlr_seat *wlr_seat = _wlr_seat;
+ assert(wl_client && wlr_seat);
+ if (version > 5) {
+ wlr_log(L_ERROR, "Client requested unsupported wl_seat version, disconnecting");
+ wl_client_destroy(wl_client);
+ return;
+ }
+ struct wlr_seat_handle *handle = calloc(1, sizeof(struct wlr_seat_handle));
+ handle->wl_resource = wl_resource_create(
+ wl_client, &wl_seat_interface, version, id);
+ handle->wlr_seat = wlr_seat;
+ wl_resource_set_implementation(handle->wl_resource, &wl_seat_impl,
+ handle, wl_seat_destroy);
+ wl_list_insert(&wlr_seat->handles, &handle->link);
+ wl_seat_send_capabilities(handle->wl_resource, wlr_seat->capabilities);
+ wl_signal_emit(&wlr_seat->events.client_bound, handle);
+}
+
+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) {
+ return NULL;
+ }
+ struct wl_global *wl_global = wl_global_create(display,
+ &wl_seat_interface, 5, wlr_seat, wl_seat_bind);
+ if (!wl_global) {
+ free(wlr_seat);
+ return NULL;
+ }
+ wlr_seat->wl_global = wl_global;
+ wlr_seat->name = strdup(name);
+ wl_list_init(&wlr_seat->handles);
+ wl_signal_init(&wlr_seat->events.client_bound);
+ wl_signal_init(&wlr_seat->events.client_unbound);
+ return wlr_seat;
+}
+
+void wlr_seat_destroy(struct wlr_seat *wlr_seat) {
+ // TODO
+}
+
+struct wlr_seat_handle *wlr_seat_handle_for_client(struct wlr_seat *wlr_seat,
+ struct wl_client *client) {
+ assert(wlr_seat);
+ struct wlr_seat_handle *handle;
+ wl_list_for_each(handle, &wlr_seat->handles, link) {
+ if (wl_resource_get_client(handle->wl_resource) == client) {
+ return handle;
+ }
+ }
+ return NULL;
+}
+
+void wlr_seat_set_capabilities(struct wlr_seat *wlr_seat,
+ uint32_t capabilities) {
+ // TODO: If e.g. pointer was removed, destroy all client pointer resources
+ wlr_seat->capabilities = capabilities;
+}
+
+void wlr_seat_set_name(struct wlr_seat *wlr_seat, const char *name) {
+ free(wlr_seat->name);
+ wlr_seat->name = strdup(name);
+}