Focus layer-shell

include/desktop/desktop.h

@@ -18,8 +18,7 @@ struct kiwmi_desktop {
     struct wlr_data_device_manager *data_device_manager;
     struct wlr_output_layout *output_layout;
     struct wl_list outputs; // struct kiwmi_output::link
-    struct kiwmi_view *focused_view;
-    struct wl_list views; // struct kiwmi_view::link
+    struct wl_list views;   // struct kiwmi_view::link
 
     struct wl_listener xdg_shell_new_surface;
     struct wl_listener layer_shell_new_surface;

include/input/seat.h

@@ -9,16 +9,27 @@
 #define KIWMI_INPUT_SEAT_H
 
 #include <wayland-server.h>
+#include <wlr/types/wlr_surface.h>
 
+#include "desktop/layer_shell.h"
+#include "desktop/view.h"
 #include "input/input.h"
 
 struct kiwmi_seat {
     struct kiwmi_input *input;
     struct wlr_seat *seat;
 
+    struct kiwmi_view *focused_view;
+    struct kiwmi_layer *focused_layer;
+
     struct wl_listener request_set_cursor;
 };
 
+void
+seat_focus_surface(struct kiwmi_seat *seat, struct wlr_surface *wlr_surface);
+void seat_focus_layer(struct kiwmi_seat *seat, struct kiwmi_layer *layer);
+void seat_focus_view(struct kiwmi_seat *seat, struct kiwmi_view *view);
+
 struct kiwmi_seat *seat_create(struct kiwmi_input *input);
 void seat_destroy(struct kiwmi_seat *seat);
 

kiwmi/desktop/desktop.c

@@ -28,6 +28,7 @@ bool
 desktop_init(struct kiwmi_desktop *desktop, struct wlr_renderer *renderer)
 {
     struct kiwmi_server *server = wl_container_of(desktop, server, desktop);
+
     desktop->compositor = wlr_compositor_create(server->wl_display, renderer);
     desktop->data_device_manager =
         wlr_data_device_manager_create(server->wl_display);
@@ -49,8 +50,6 @@ desktop_init(struct kiwmi_desktop *desktop, struct wlr_renderer *renderer)
         &desktop->layer_shell->events.new_surface,
         &desktop->layer_shell_new_surface);
 
-    desktop->focused_view = NULL;
-
     wl_list_init(&desktop->outputs);
     wl_list_init(&desktop->views);
 

kiwmi/desktop/layer_shell.c

@@ -14,8 +14,8 @@
 #include <wlr/util/log.h>
 
 #include "desktop/desktop.h"
-#include "wayland-util.h"
-#include "wlr-layer-shell-unstable-v1-protocol.h"
+#include "input/seat.h"
+#include "server.h"
 
 static void
 kiwmi_layer_destroy_notify(struct wl_listener *listener, void *UNUSED(data))
@@ -27,6 +27,8 @@ kiwmi_layer_destroy_notify(struct wl_listener *listener, void *UNUSED(data))
 
     wlr_layer_surface_v1_close(layer->layer_surface);
 
+    arrange_layers(layer->output);
+
     free(layer);
 }
 
@@ -291,7 +293,11 @@ arrange_layers(struct kiwmi_output *output)
         }
     }
 
-    // TODO: focus topmost
+    struct kiwmi_desktop *desktop = output->desktop;
+    struct kiwmi_server *server   = wl_container_of(desktop, server, desktop);
+    struct kiwmi_seat *seat       = server->input.seat;
+
+    seat_focus_layer(seat, topmost);
 }
 
 void

kiwmi/desktop/view.c

@@ -81,41 +81,6 @@ view_surface_at(
     return NULL;
 }
 
-void
-view_focus(struct kiwmi_view *view)
-{
-    if (!view) {
-        return;
-    }
-
-    struct kiwmi_desktop *desktop = view->desktop;
-    struct kiwmi_server *server   = wl_container_of(desktop, server, desktop);
-    struct wlr_seat *seat         = server->input.seat->seat;
-
-    if (view == desktop->focused_view) {
-        return;
-    }
-
-    if (desktop->focused_view) {
-        view_set_activated(desktop->focused_view, false);
-    }
-
-    struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
-
-    // move view to front
-    wl_list_remove(&view->link);
-    wl_list_insert(&desktop->views, &view->link);
-
-    desktop->focused_view = view;
-    view_set_activated(view, true);
-    wlr_seat_keyboard_notify_enter(
-        seat,
-        view->wlr_surface,
-        keyboard->keycodes,
-        keyboard->num_keycodes,
-        &keyboard->modifiers);
-}
-
 static bool
 surface_at(
     struct kiwmi_view *view,

kiwmi/desktop/xdg_shell.c

@@ -13,6 +13,8 @@
 
 #include "desktop/desktop.h"
 #include "desktop/view.h"
+#include "input/input.h"
+#include "input/seat.h"
 #include "server.h"
 
 static void
@@ -38,9 +40,11 @@ xdg_surface_destroy_notify(struct wl_listener *listener, void *UNUSED(data))
 {
     struct kiwmi_view *view       = wl_container_of(listener, view, destroy);
     struct kiwmi_desktop *desktop = view->desktop;
+    struct kiwmi_server *server   = wl_container_of(desktop, server, desktop);
+    struct kiwmi_seat *seat       = server->input.seat;
 
-    if (desktop->focused_view == view) {
-        desktop->focused_view = NULL;
+    if (seat->focused_view == view) {
+        seat->focused_view = NULL;
     }
 
     wl_list_remove(&view->link);

kiwmi/input/seat.c

@@ -9,14 +9,82 @@
 
 #include <stdlib.h>
 
-#include <wayland-server.h>
 #include <wlr/types/wlr_cursor.h>
+#include <wlr/types/wlr_layer_shell_v1.h>
 #include <wlr/types/wlr_seat.h>
 #include <wlr/util/log.h>
 
+#include "desktop/layer_shell.h"
+#include "desktop/view.h"
 #include "input/cursor.h"
 #include "server.h"
 
+void
+seat_focus_surface(struct kiwmi_seat *seat, struct wlr_surface *wlr_surface)
+{
+    if (seat->focused_layer) {
+        return;
+    }
+
+    struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat->seat);
+    if (!keyboard) {
+        wlr_seat_keyboard_enter(seat->seat, wlr_surface, NULL, 0, NULL);
+    }
+
+    wlr_seat_keyboard_enter(
+        seat->seat,
+        wlr_surface,
+        keyboard->keycodes,
+        keyboard->num_keycodes,
+        &keyboard->modifiers);
+}
+
+void
+seat_focus_view(struct kiwmi_seat *seat, struct kiwmi_view *view)
+{
+    if (!view) {
+        seat_focus_surface(seat, NULL);
+    }
+
+    struct kiwmi_desktop *desktop = view->desktop;
+
+    if (seat->focused_view) {
+        view_set_activated(seat->focused_view, false);
+    }
+
+    // move view to front
+    wl_list_remove(&view->link);
+    wl_list_insert(&desktop->views, &view->link);
+
+    seat->focused_view = view;
+    view_set_activated(view, true);
+    seat_focus_surface(seat, view->wlr_surface);
+}
+
+void
+seat_focus_layer(struct kiwmi_seat *seat, struct kiwmi_layer *layer)
+{
+    if (!layer) {
+        if (seat->focused_layer) {
+            seat_focus_surface(seat, NULL);
+            seat_focus_surface(
+                seat, seat->focused_layer->layer_surface->surface);
+        }
+
+        return;
+    }
+
+    if (seat->focused_layer == layer) {
+        return;
+    }
+
+    seat->focused_layer = NULL;
+
+    seat_focus_surface(seat, layer->layer_surface->surface);
+
+    seat->focused_layer = layer;
+}
+
 static void
 request_set_cursor_notify(struct wl_listener *listener, void *data)
 {
@@ -57,6 +125,9 @@ seat_create(struct kiwmi_input *input)
     seat->input = input;
     seat->seat  = wlr_seat_create(server->wl_display, "seat-0");
 
+    seat->focused_view  = NULL;
+    seat->focused_layer = NULL;
+
     seat->request_set_cursor.notify = request_set_cursor_notify;
     wl_signal_add(
         &seat->seat->events.request_set_cursor, &seat->request_set_cursor);

kiwmi/luak/kiwmi_server.c

@@ -18,6 +18,8 @@
 
 #include "desktop/view.h"
 #include "input/cursor.h"
+#include "input/input.h"
+#include "input/seat.h"
 #include "luak/kiwmi_cursor.h"
 #include "luak/kiwmi_keyboard.h"
 #include "luak/kiwmi_lua_callback.h"
@@ -47,12 +49,12 @@ l_kiwmi_server_focused_view(lua_State *L)
     struct kiwmi_server *server =
         *(struct kiwmi_server **)luaL_checkudata(L, 1, "kiwmi_server");
 
-    if (!server->desktop.focused_view) {
+    if (!server->input.seat->focused_view) {
         return 0;
     }
 
     lua_pushcfunction(L, luaK_kiwmi_view_new);
-    lua_pushlightuserdata(L, server->desktop.focused_view);
+    lua_pushlightuserdata(L, server->input.seat->focused_view);
     if (lua_pcall(L, 1, 1, 0)) {
         wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
         return 0;

kiwmi/luak/kiwmi_view.c

@@ -10,10 +10,12 @@
 #include <string.h>
 
 #include <lauxlib.h>
+#include <wayland-server.h>
 #include <wlr/util/edges.h>
 #include <wlr/util/log.h>
 
 #include "desktop/view.h"
+#include "input/seat.h"
 #include "luak/kiwmi_lua_callback.h"
 #include "server.h"
 
@@ -34,7 +36,11 @@ l_kiwmi_view_focus(lua_State *L)
     struct kiwmi_view *view =
         *(struct kiwmi_view **)luaL_checkudata(L, 1, "kiwmi_view");
 
-    view_focus(view);
+    struct kiwmi_desktop *desktop = view->desktop;
+    struct kiwmi_server *server   = wl_container_of(desktop, server, desktop);
+    struct kiwmi_seat *seat       = server->input.seat;
+
+    seat_focus_view(seat, view);
 
     return 0;
 }