layer shell and others

2026-05-17 20:03:02 +07:00
parent 62dbb3a54e
commit 5d81826183
26 changed files with 3616 additions and 298 deletions
@@ -0,0 +1,87 @@
+#include <wlr/types/wlr_layer_shell_v1.h>
+
+#include "focus.h"
+#include "layout.h"
+#include "output.h"
+#include "types.h"
+
+/* arrange layers logic from dwl */
+
+static void layer_arrange(absn_output *output, struct wl_list *list,
+                          struct wlr_box *usable_area, int exclusive)
+{
+    absn_layer_surface *layer_surface;
+    wl_list_for_each(layer_surface, list, link)
+    {
+        struct wlr_layer_surface_v1 *surface = layer_surface->wlr;
+
+        if (!surface->initialized) {
+            continue;
+        }
+
+        if (exclusive != (surface->current.exclusive_zone > 0)) {
+            continue;
+        }
+
+        wlr_scene_layer_surface_v1_configure(layer_surface->scene_layer,
+                                             &output->geom, usable_area);
+        wlr_scene_node_set_position(&layer_surface->popups->node,
+                                    layer_surface->scene_tree->node.x,
+                                    layer_surface->scene_tree->node.y);
+    }
+}
+
+void layers_arrange(absn_output *output)
+{
+    if (!output->wlr->enabled) {
+        return;
+    }
+
+    struct wlr_box usable_area = output->usable_area;
+
+    /* Arrange non-exclusive surfaces from top->bottom */
+    for (int i = 3; i >= 0; --i) {
+        layer_arrange(output, &output->layers[i], &usable_area, 1);
+    }
+
+    if (!wlr_box_equal(&output->usable_area, &usable_area)) {
+        output->usable_area = usable_area;
+        output_arrange(output);
+    }
+
+    /* Arrange non-exclusive surfaces from top->bottom */
+    for (int i = 3; i >= 0; --i) {
+        layer_arrange(output, &output->layers[i], &usable_area, 0);
+    }
+
+    uint32_t layers_above_shell[] = {
+        ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY,
+        ZWLR_LAYER_SHELL_V1_LAYER_TOP,
+    };
+
+    int layers_above_shell_count =
+        sizeof(layers_above_shell) / sizeof(layers_above_shell[0]);
+    absn_layer_surface *layer_surface;
+    for (int i = 0; i < layers_above_shell_count; ++i) {
+        wl_list_for_each_reverse(layer_surface,
+                                 &output->layers[layers_above_shell[i]], link)
+        {
+            if (!layer_surface->wlr->current.keyboard_interactive ||
+                !layer_surface->mapped) {
+                continue;
+            }
+
+            unfocus_toplevel(output->server->focused_toplevel);
+            output->server->exclusive_focus = layer_surface;
+            struct wlr_keyboard *keyboard =
+                wlr_seat_get_keyboard(output->server->seat);
+            if (keyboard) {
+                wlr_seat_keyboard_notify_enter(
+                    output->server->seat, layer_surface->wlr->surface,
+                    keyboard->keycodes, keyboard->num_keycodes,
+                    &keyboard->modifiers);
+            }
+            return;
+        }
+    }
+}