reorganized into seat file and cursor file

src/seat.zig

@@ -0,0 +1,45 @@
+const Seat = @This();
+
+const std = @import("std");
+const server = &@import("main.zig").server;
+
+const wlr = @import("wlroots");
+const wl = @import("wayland").server.wl;
+
+wlr_seat: *wlr.Seat,
+
+request_set_cursor: wl.Listener(*wlr.Seat.event.RequestSetCursor) = .init(handleRequestSetCursor),
+request_set_selection: wl.Listener(*wlr.Seat.event.RequestSetSelection) = .init(handleRequestSetSelection),
+// request_set_primary_selection
+// request_start_drage
+
+pub fn init(self: *Seat) !void {
+  self.* = .{
+    .wlr_seat = try wlr.Seat.create(server.wl_server, "default"),
+  };
+
+  self.wlr_seat.events.request_set_cursor.add(&self.request_set_cursor);
+  self.wlr_seat.events.request_set_selection.add(&self.request_set_selection);
+}
+
+pub fn deinit(self: *Seat) void {
+  self.wlr_seat.destroy();
+
+  self.request_set_cursor.link.remove();
+  self.request_set_selection.link.remove();
+}
+
+fn handleRequestSetCursor(
+  _: *wl.Listener(*wlr.Seat.event.RequestSetCursor),
+  event: *wlr.Seat.event.RequestSetCursor,
+) void {
+  if (event.seat_client == server.seat.wlr_seat.pointer_state.focused_client)
+  server.cursor.wlr_cursor.setSurface(event.surface, event.hotspot_x, event.hotspot_y);
+}
+
+fn handleRequestSetSelection (
+  _: *wl.Listener(*wlr.Seat.event.RequestSetSelection),
+  event: *wlr.Seat.event.RequestSetSelection,
+) void {
+  server.seat.wlr_seat.setSelection(event.source, event.serial);
+}