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#include <stdlib.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_scene.h>
struct wlr_scene_output_layout {
struct wlr_output_layout *layout;
struct wlr_scene *scene;
struct wl_list outputs; // wlr_scene_output_layout_output.link
struct wl_listener layout_add;
struct wl_listener layout_change;
struct wl_listener layout_destroy;
struct wl_listener scene_destroy;
};
struct wlr_scene_output_layout_output {
struct wlr_output_layout_output *layout_output;
struct wlr_scene_output *scene_output;
struct wl_list link; // wlr_scene_output_layout.outputs
struct wl_listener layout_output_destroy;
struct wl_listener scene_output_destroy;
};
static void scene_output_layout_output_destroy(
struct wlr_scene_output_layout_output *solo) {
wl_list_remove(&solo->layout_output_destroy.link);
wl_list_remove(&solo->scene_output_destroy.link);
wl_list_remove(&solo->link);
wlr_scene_output_destroy(solo->scene_output);
free(solo);
}
static void scene_output_layout_output_handle_layout_output_destroy(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout_output *solo =
wl_container_of(listener, solo, layout_output_destroy);
scene_output_layout_output_destroy(solo);
}
static void scene_output_layout_output_handle_scene_output_destroy(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout_output *solo =
wl_container_of(listener, solo, scene_output_destroy);
solo->scene_output = NULL;
scene_output_layout_output_destroy(solo);
}
static void scene_output_layout_destroy(struct wlr_scene_output_layout *sol) {
struct wlr_scene_output_layout_output *solo, *tmp;
wl_list_for_each_safe(solo, tmp, &sol->outputs, link) {
scene_output_layout_output_destroy(solo);
}
wl_list_remove(&sol->layout_add.link);
wl_list_remove(&sol->layout_change.link);
wl_list_remove(&sol->layout_destroy.link);
wl_list_remove(&sol->scene_destroy.link);
free(sol);
}
static void scene_output_layout_handle_layout_change(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout *sol =
wl_container_of(listener, sol, layout_change);
struct wlr_scene_output_layout_output *solo;
wl_list_for_each(solo, &sol->outputs, link) {
wlr_scene_output_set_position(solo->scene_output,
solo->layout_output->x, solo->layout_output->y);
}
}
static void scene_output_layout_add(struct wlr_scene_output_layout *sol,
struct wlr_output_layout_output *lo) {
struct wlr_scene_output_layout_output *solo = calloc(1, sizeof(*solo));
if (solo == NULL) {
return;
}
solo->scene_output = wlr_scene_output_create(sol->scene, lo->output);
if (solo->scene_output == NULL) {
free(solo);
return;
}
solo->layout_output = lo;
solo->layout_output_destroy.notify =
scene_output_layout_output_handle_layout_output_destroy;
wl_signal_add(&lo->events.destroy, &solo->layout_output_destroy);
solo->scene_output_destroy.notify =
scene_output_layout_output_handle_scene_output_destroy;
wl_signal_add(&solo->scene_output->events.destroy,
&solo->scene_output_destroy);
wl_list_insert(&sol->outputs, &solo->link);
wlr_scene_output_set_position(solo->scene_output, lo->x, lo->y);
}
static void scene_output_layout_handle_layout_add(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout *sol =
wl_container_of(listener, sol, layout_add);
struct wlr_output_layout_output *lo = data;
scene_output_layout_add(sol, lo);
}
static void scene_output_layout_handle_layout_destroy(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout *sol =
wl_container_of(listener, sol, layout_destroy);
scene_output_layout_destroy(sol);
}
static void scene_output_layout_handle_scene_destroy(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout *sol =
wl_container_of(listener, sol, scene_destroy);
scene_output_layout_destroy(sol);
}
bool wlr_scene_attach_output_layout(struct wlr_scene *scene,
struct wlr_output_layout *output_layout) {
struct wlr_scene_output_layout *sol = calloc(1, sizeof(*sol));
if (sol == NULL) {
return false;
}
sol->scene = scene;
sol->layout = output_layout;
wl_list_init(&sol->outputs);
sol->layout_destroy.notify = scene_output_layout_handle_layout_destroy;
wl_signal_add(&output_layout->events.destroy, &sol->layout_destroy);
sol->layout_change.notify = scene_output_layout_handle_layout_change;
wl_signal_add(&output_layout->events.change, &sol->layout_change);
sol->layout_add.notify = scene_output_layout_handle_layout_add;
wl_signal_add(&output_layout->events.add, &sol->layout_add);
sol->scene_destroy.notify = scene_output_layout_handle_scene_destroy;
wl_signal_add(&scene->tree.node.events.destroy, &sol->scene_destroy);
struct wlr_output_layout_output *lo;
wl_list_for_each(lo, &output_layout->outputs, link) {
scene_output_layout_add(sol, lo);
}
return true;
}
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