sway xcursor manager

include/sway/input/cursor.h

@@ -5,6 +5,7 @@
 
 struct sway_cursor {
 	struct wlr_cursor *cursor;
+	struct wlr_xcursor_manager *xcursor_manager;
 
 	struct wl_listener motion;
 	struct wl_listener motion_absolute;

include/sway/input/seat.h

@@ -18,4 +18,6 @@ void sway_seat_add_device(struct sway_seat *seat,
 void sway_seat_remove_device(struct sway_seat *seat,
 		struct wlr_input_device *device);
 
+void sway_seat_configure_xcursor(struct sway_seat *seat);
+
 #endif

sway/input/seat.c

@@ -1,8 +1,10 @@
 #define _XOPEN_SOURCE 700
 #include <wlr/types/wlr_cursor.h>
+#include <wlr/types/wlr_xcursor_manager.h>
 #include "sway/input/seat.h"
 #include "sway/input/cursor.h"
 #include "sway/input/input-manager.h"
+#include "sway/output.h"
 #include "log.h"
 
 struct sway_seat *sway_seat_create(struct wl_display *display,
@@ -29,6 +31,8 @@ struct sway_seat *sway_seat_create(struct wl_display *display,
 		WL_SEAT_CAPABILITY_POINTER |
 		WL_SEAT_CAPABILITY_TOUCH);
 
+	sway_seat_configure_xcursor(seat);
+
 	return seat;
 }
 
@@ -74,3 +78,37 @@ void sway_seat_remove_device(struct sway_seat *seat,
 			break;
 	}
 }
+
+void sway_seat_configure_xcursor(struct sway_seat *seat) {
+	// TODO configure theme and size
+	const char *cursor_theme = "default";
+
+	if (seat->cursor->xcursor_manager) {
+		wlr_xcursor_manager_destroy(seat->cursor->xcursor_manager);
+	}
+
+	seat->cursor->xcursor_manager =
+		wlr_xcursor_manager_create(NULL, 24);
+	if (sway_assert(seat->cursor->xcursor_manager,
+				"Cannot create XCursor manager for theme %s", cursor_theme)) {
+		return;
+	}
+
+	for (int i = 0; i < root_container.children->length; ++i) {
+		swayc_t *output_container = root_container.children->items[i];
+		struct wlr_output *output =
+			output_container->sway_output->wlr_output;
+		bool result =
+			wlr_xcursor_manager_load(seat->cursor->xcursor_manager,
+				output->scale);
+
+		sway_assert(result,
+			"Cannot load xcursor theme for output '%s' with scale %d",
+			output->name, output->scale);
+	}
+
+	wlr_xcursor_manager_set_cursor_image(seat->cursor->xcursor_manager,
+		"left_ptr", seat->cursor->cursor);
+	wlr_cursor_warp(seat->cursor->cursor, NULL, seat->cursor->cursor->x,
+		seat->cursor->cursor->y);
+}