425 lines
13 KiB
C
425 lines
13 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <wlr/types/wlr_xdg_foreign_v1.h>
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#include <wlr/types/wlr_xdg_shell.h>
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#include <wlr/util/log.h>
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#include "xdg-foreign-unstable-v1-protocol.h"
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#define FOREIGN_V1_VERSION 1
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static const struct zxdg_exported_v1_interface xdg_exported_impl;
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static const struct zxdg_imported_v1_interface xdg_imported_impl;
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static const struct zxdg_exporter_v1_interface xdg_exporter_impl;
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static const struct zxdg_importer_v1_interface xdg_importer_impl;
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static struct wlr_xdg_imported_v1 *xdg_imported_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zxdg_imported_v1_interface,
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&xdg_imported_impl));
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return wl_resource_get_user_data(resource);
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}
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static void xdg_imported_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static struct wlr_xdg_toplevel *verify_is_toplevel(struct wl_resource *resource,
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struct wlr_surface *surface) {
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if (!wlr_surface_is_xdg_surface(surface)) {
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wl_resource_post_error(resource, -1, "surface must be an xdg_surface");
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return NULL;
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}
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struct wlr_xdg_surface *xdg_surface =
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wlr_xdg_surface_from_wlr_surface(surface);
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if (xdg_surface == NULL || xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) {
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wl_resource_post_error(resource, -1, "surface must be an xdg_toplevel");
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return NULL;
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}
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return xdg_surface->toplevel;
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}
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static void destroy_imported_child(struct wlr_xdg_imported_child_v1 *child) {
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wl_list_remove(&child->xdg_toplevel_set_parent.link);
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wl_list_remove(&child->xdg_surface_unmap.link);
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wl_list_remove(&child->link);
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free(child);
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}
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static void handle_child_xdg_surface_unmap(
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struct wl_listener *listener, void *data) {
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struct wlr_xdg_imported_child_v1 *child =
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wl_container_of(listener, child, xdg_surface_unmap);
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destroy_imported_child(child);
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}
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static void handle_xdg_toplevel_set_parent(
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struct wl_listener *listener, void *data) {
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struct wlr_xdg_imported_child_v1 *child =
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wl_container_of(listener, child, xdg_toplevel_set_parent);
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destroy_imported_child(child);
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}
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static void xdg_imported_handle_set_parent_of(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *child_resource) {
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struct wlr_xdg_imported_v1 *imported =
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xdg_imported_from_resource(resource);
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if (imported == NULL) {
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return;
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}
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struct wlr_surface *wlr_surface = imported->exported->surface;
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struct wlr_surface *wlr_surface_child =
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wlr_surface_from_resource(child_resource);
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struct wlr_xdg_toplevel *child_toplevel =
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verify_is_toplevel(resource, wlr_surface_child);
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if (!child_toplevel) {
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return;
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}
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struct wlr_xdg_surface *surface =
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wlr_xdg_surface_from_wlr_surface(wlr_surface);
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if (!surface->mapped) {
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wlr_xdg_toplevel_set_parent(child_toplevel, NULL);
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return;
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}
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struct wlr_xdg_imported_child_v1 *child;
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wl_list_for_each(child, &imported->children, link) {
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if (child->surface == wlr_surface_child) {
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return;
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}
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}
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child = calloc(1, sizeof(struct wlr_xdg_imported_child_v1));
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if (child == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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child->surface = wlr_surface_child;
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child->xdg_surface_unmap.notify = handle_child_xdg_surface_unmap;
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child->xdg_toplevel_set_parent.notify = handle_xdg_toplevel_set_parent;
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wlr_xdg_toplevel_set_parent(child_toplevel, surface->toplevel);
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wl_signal_add(&child_toplevel->base->events.unmap,
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&child->xdg_surface_unmap);
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wl_signal_add(&child_toplevel->events.set_parent,
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&child->xdg_toplevel_set_parent);
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wl_list_insert(&imported->children, &child->link);
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}
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static const struct zxdg_imported_v1_interface xdg_imported_impl = {
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.destroy = xdg_imported_handle_destroy,
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.set_parent_of = xdg_imported_handle_set_parent_of
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};
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static struct wlr_xdg_exported_v1 *xdg_exported_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zxdg_exported_v1_interface,
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&xdg_exported_impl));
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return wl_resource_get_user_data(resource);
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}
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static void xdg_exported_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static const struct zxdg_exported_v1_interface xdg_exported_impl = {
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.destroy = xdg_exported_handle_destroy
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};
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static void xdg_exporter_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static struct wlr_xdg_foreign_v1 *xdg_foreign_from_exporter_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zxdg_exporter_v1_interface,
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&xdg_exporter_impl));
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return wl_resource_get_user_data(resource);
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}
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static void destroy_imported(struct wlr_xdg_imported_v1 *imported) {
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imported->exported = NULL;
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struct wlr_xdg_imported_child_v1 *child, *child_tmp;
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wl_list_for_each_safe(child, child_tmp, &imported->children, link) {
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struct wlr_xdg_surface *xdg_child =
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wlr_xdg_surface_from_wlr_surface(child->surface);
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wlr_xdg_toplevel_set_parent(xdg_child->toplevel, NULL);
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}
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wl_list_remove(&imported->exported_destroyed.link);
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wl_list_init(&imported->exported_destroyed.link);
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wl_list_remove(&imported->link);
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wl_list_init(&imported->link);
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wl_resource_set_user_data(imported->resource, NULL);
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free(imported);
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}
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static void destroy_exported(struct wlr_xdg_exported_v1 *exported) {
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wlr_xdg_foreign_exported_finish(&exported->base);
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wl_list_remove(&exported->xdg_surface_unmap.link);
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wl_list_remove(&exported->link);
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wl_resource_set_user_data(exported->resource, NULL);
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free(exported);
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}
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static void xdg_exported_handle_resource_destroy(
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struct wl_resource *resource) {
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struct wlr_xdg_exported_v1 *exported =
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xdg_exported_from_resource(resource);
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if (exported) {
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destroy_exported(exported);
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}
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}
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static void handle_xdg_surface_unmap(
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struct wl_listener *listener, void *data) {
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struct wlr_xdg_exported_v1 *exported =
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wl_container_of(listener, exported, xdg_surface_unmap);
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destroy_exported(exported);
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}
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static void xdg_exporter_handle_export(struct wl_client *wl_client,
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struct wl_resource *client_resource,
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uint32_t id,
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struct wl_resource *surface_resource) {
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struct wlr_xdg_foreign_v1 *foreign =
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xdg_foreign_from_exporter_resource(client_resource);
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struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
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struct wlr_xdg_toplevel *xdg_toplevel =
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verify_is_toplevel(client_resource, surface);
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if (!xdg_toplevel) {
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return;
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}
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struct wlr_xdg_exported_v1 *exported =
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calloc(1, sizeof(struct wlr_xdg_exported_v1));
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if (exported == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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if (!wlr_xdg_foreign_exported_init(&exported->base, foreign->registry)) {
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wl_client_post_no_memory(wl_client);
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free(exported);
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return;
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}
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exported->base.surface = surface;
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exported->resource = wl_resource_create(wl_client, &zxdg_exported_v1_interface,
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wl_resource_get_version(client_resource), id);
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if (exported->resource == NULL) {
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wlr_xdg_foreign_exported_finish(&exported->base);
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wl_client_post_no_memory(wl_client);
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free(exported);
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return;
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}
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wl_resource_set_implementation(exported->resource, &xdg_exported_impl,
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exported, xdg_exported_handle_resource_destroy);
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wl_list_insert(&foreign->exporter.objects, &exported->link);
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zxdg_exported_v1_send_handle(exported->resource, exported->base.handle);
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exported->xdg_surface_unmap.notify = handle_xdg_surface_unmap;
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wl_signal_add(&xdg_toplevel->base->events.unmap, &exported->xdg_surface_unmap);
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}
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static const struct zxdg_exporter_v1_interface xdg_exporter_impl = {
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.destroy = xdg_exporter_handle_destroy,
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.export = xdg_exporter_handle_export
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};
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static void xdg_exporter_bind(struct wl_client *wl_client, void *data,
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uint32_t version, uint32_t id) {
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struct wlr_xdg_foreign_v1 *foreign = data;
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struct wl_resource *exporter_resource =
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wl_resource_create(wl_client, &zxdg_exporter_v1_interface, version, id);
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if (exporter_resource == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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wl_resource_set_implementation(exporter_resource, &xdg_exporter_impl,
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foreign, NULL);
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}
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static struct wlr_xdg_foreign_v1 *xdg_foreign_from_importer_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zxdg_importer_v1_interface,
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&xdg_importer_impl));
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return wl_resource_get_user_data(resource);
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}
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static void xdg_importer_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static void xdg_imported_handle_resource_destroy(
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struct wl_resource *resource) {
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struct wlr_xdg_imported_v1 *imported = xdg_imported_from_resource(resource);
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if (!imported) {
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return;
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}
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destroy_imported(imported);
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}
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static void xdg_imported_handle_exported_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_xdg_imported_v1 *imported =
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wl_container_of(listener, imported, exported_destroyed);
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zxdg_imported_v1_send_destroyed(imported->resource);
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destroy_imported(imported);
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}
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static void xdg_importer_handle_import(struct wl_client *wl_client,
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struct wl_resource *client_resource,
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uint32_t id,
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const char *handle) {
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struct wlr_xdg_foreign_v1 *foreign =
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xdg_foreign_from_importer_resource(client_resource);
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struct wlr_xdg_imported_v1 *imported =
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calloc(1, sizeof(struct wlr_xdg_imported_v1));
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if (imported == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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imported->exported = wlr_xdg_foreign_registry_find_by_handle(
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foreign->registry, handle);
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imported->resource = wl_resource_create(wl_client, &zxdg_imported_v1_interface,
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wl_resource_get_version(client_resource), id);
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if (imported->resource == NULL) {
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wl_client_post_no_memory(wl_client);
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free(imported);
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return;
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}
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wl_resource_set_implementation(imported->resource, &xdg_imported_impl,
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imported, xdg_imported_handle_resource_destroy);
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if (imported->exported == NULL) {
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wl_resource_set_user_data(imported->resource, NULL);
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zxdg_imported_v1_send_destroyed(imported->resource);
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free(imported);
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return;
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}
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wl_list_init(&imported->children);
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wl_list_insert(&foreign->importer.objects, &imported->link);
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imported->exported_destroyed.notify = xdg_imported_handle_exported_destroy;
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wl_signal_add(&imported->exported->events.destroy, &imported->exported_destroyed);
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}
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static const struct zxdg_importer_v1_interface xdg_importer_impl = {
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.destroy = xdg_importer_handle_destroy,
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.import = xdg_importer_handle_import
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};
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static void xdg_importer_bind(struct wl_client *wl_client, void *data,
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uint32_t version, uint32_t id) {
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struct wlr_xdg_foreign_v1 *foreign = data;
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struct wl_resource *importer_resource =
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wl_resource_create(wl_client, &zxdg_importer_v1_interface, version, id);
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if (importer_resource == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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wl_resource_set_implementation(importer_resource, &xdg_importer_impl,
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foreign, NULL);
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}
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static void xdg_foreign_destroy(struct wlr_xdg_foreign_v1 *foreign) {
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if (!foreign) {
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return;
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}
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wl_signal_emit_mutable(&foreign->events.destroy, NULL);
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wl_list_remove(&foreign->foreign_registry_destroy.link);
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wl_list_remove(&foreign->display_destroy.link);
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wl_global_destroy(foreign->exporter.global);
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wl_global_destroy(foreign->importer.global);
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free(foreign);
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_xdg_foreign_v1 *foreign =
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wl_container_of(listener, foreign, display_destroy);
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xdg_foreign_destroy(foreign);
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}
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static void handle_foreign_registry_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_xdg_foreign_v1 *foreign =
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wl_container_of(listener, foreign, foreign_registry_destroy);
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xdg_foreign_destroy(foreign);
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}
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struct wlr_xdg_foreign_v1 *wlr_xdg_foreign_v1_create(
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struct wl_display *display, struct wlr_xdg_foreign_registry *registry) {
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struct wlr_xdg_foreign_v1 *foreign = calloc(1,
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sizeof(struct wlr_xdg_foreign_v1));
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if (!foreign) {
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return NULL;
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}
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foreign->exporter.global = wl_global_create(display,
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&zxdg_exporter_v1_interface,
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FOREIGN_V1_VERSION, foreign,
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xdg_exporter_bind);
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if (!foreign->exporter.global) {
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free(foreign);
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return NULL;
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}
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foreign->importer.global = wl_global_create(display,
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&zxdg_importer_v1_interface,
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FOREIGN_V1_VERSION, foreign,
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xdg_importer_bind);
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if (!foreign->importer.global) {
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wl_global_destroy(foreign->exporter.global);
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free(foreign);
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return NULL;
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}
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foreign->registry = registry;
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wl_signal_init(&foreign->events.destroy);
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wl_list_init(&foreign->exporter.objects);
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wl_list_init(&foreign->importer.objects);
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foreign->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &foreign->display_destroy);
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foreign->foreign_registry_destroy.notify = handle_foreign_registry_destroy;
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wl_signal_add(®istry->events.destroy, &foreign->foreign_registry_destroy);
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return foreign;
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}
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