Initialize seat pointer in swaybar

1 files changed, 105 insertions, 0 deletions

diff --git a/swaybar/bar.c b/swaybar/bar.c
index 0fc41517..e7b8b2ca 100644
--- a/swaybar/bar.c
+++ b/swaybar/bar.c
@@ -9,7 +9,13 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <wayland-client.h>
+#include <wayland-cursor.h>
 #include <wlr/util/log.h>
+#ifdef __FreeBSD__
+#include <dev/evdev/input-event-codes.h>
+#else
+#include <linux/input-event-codes.h>
+#endif
 #include "swaybar/render.h"
 #include "swaybar/config.h"
 #include "swaybar/event_loop.h"
@@ -56,12 +62,102 @@ struct zwlr_layer_surface_v1_listener layer_surface_listener = {
         .closed = layer_surface_closed,
 };
 
+static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
+                uint32_t serial, struct wl_surface *surface,
+                wl_fixed_t surface_x, wl_fixed_t surface_y) {
+        struct swaybar *bar = data;
+        struct swaybar_pointer *pointer = &bar->pointer;
+        wl_surface_attach(pointer->cursor_surface,
+                        wl_cursor_image_get_buffer(pointer->cursor_image), 0, 0);
+        wl_pointer_set_cursor(wl_pointer, serial, pointer->cursor_surface,
+                        pointer->cursor_image->hotspot_x,
+                        pointer->cursor_image->hotspot_y);
+        wl_surface_commit(pointer->cursor_surface);
+}
+
+static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
+                uint32_t serial, struct wl_surface *surface) {
+        // Who cares
+}
+
+static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
+                uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
+        wlr_log(L_DEBUG, "motion");
+        // TODO
+}
+
+static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
+                uint32_t serial, uint32_t time, uint32_t button, uint32_t state) {
+        wlr_log(L_DEBUG, "button");
+        // TODO
+}
+
+static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
+                uint32_t time, uint32_t axis, wl_fixed_t value) {
+        wlr_log(L_DEBUG, "axis");
+        // TODO
+}
+
+static void wl_pointer_frame(void *data, struct wl_pointer *wl_pointer) {
+        // Who cares
+}
+
+static void wl_pointer_axis_source(void *data, struct wl_pointer *wl_pointer,
+                uint32_t axis_source) {
+        // Who cares
+}
+
+static void wl_pointer_axis_stop(void *data, struct wl_pointer *wl_pointer,
+                uint32_t time, uint32_t axis) {
+        // Who cares
+}
+
+static void wl_pointer_axis_discrete(void *data, struct wl_pointer *wl_pointer,
+                uint32_t axis, int32_t discrete) {
+        // Who cares
+}
+
+struct wl_pointer_listener pointer_listener = {
+        .enter = wl_pointer_enter,
+        .leave = wl_pointer_leave,
+        .motion = wl_pointer_motion,
+        .button = wl_pointer_button,
+        .axis = wl_pointer_axis,
+        .frame = wl_pointer_frame,
+        .axis_source = wl_pointer_axis_source,
+        .axis_stop = wl_pointer_axis_stop,
+        .axis_discrete = wl_pointer_axis_discrete,
+};
+
+static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
+                enum wl_seat_capability caps) {
+        struct swaybar *bar = data;
+        if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
+                bar->pointer.pointer = wl_seat_get_pointer(wl_seat);
+                wl_pointer_add_listener(bar->pointer.pointer, &pointer_listener, bar);
+        }
+}
+
+static void seat_handle_name(void *data, struct wl_seat *wl_seat,
+                const char *name) {
+        // Who cares
+}
+
+const struct wl_seat_listener seat_listener = {
+        .capabilities = seat_handle_capabilities,
+        .name = seat_handle_name,
+};
+
 static void handle_global(void *data, struct wl_registry *registry,
                 uint32_t name, const char *interface, uint32_t version) {
         struct swaybar *bar = data;
         if (strcmp(interface, wl_compositor_interface.name) == 0) {
                 bar->compositor = wl_registry_bind(registry, name,
                                 &wl_compositor_interface, 1);
+        } else if (strcmp(interface, wl_seat_interface.name) == 0) {
+                bar->seat = wl_registry_bind(registry, name,
+                                &wl_seat_interface, 1);
+                wl_seat_add_listener(bar->seat, &seat_listener, bar);
         } else if (strcmp(interface, wl_shm_interface.name) == 0) {
                 bar->shm = wl_registry_bind(registry, name,
                                 &wl_shm_interface, 1);
@@ -116,6 +212,15 @@ void bar_setup(struct swaybar *bar,
         wl_registry_add_listener(registry, &registry_listener, bar);
         wl_display_roundtrip(bar->display);
         assert(bar->compositor && bar->layer_shell && bar->shm);
+        struct swaybar_pointer *pointer = &bar->pointer;
+
+        assert(pointer->cursor_theme = wl_cursor_theme_load(NULL, 16, bar->shm));
+        struct wl_cursor *cursor;
+        assert(cursor = wl_cursor_theme_get_cursor(
+                                pointer->cursor_theme, "left_ptr"));
+        pointer->cursor_image = cursor->images[0];
+        assert(pointer->cursor_surface =
+                        wl_compositor_create_surface(bar->compositor));
 
         // TODO: we might not necessarily be meant to do all of the outputs
         struct swaybar_output *output;