ext-session-lock-v1: new protocol implementation
This implements the new ext-session-lock-v1 protocol [1]. [1]: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/131
This commit is contained in:
Isaac Freund
parent
1e3662ce57
commit
9de992b9fe
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@ -0,0 +1,98 @@
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/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_TYPES_WLR_SESSION_LOCK_H
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#define WLR_TYPES_WLR_SESSION_LOCK_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <wayland-server-core.h>
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struct wlr_session_lock_manager_v1 {
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struct wl_global *global;
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struct {
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struct wl_signal new_lock; // struct wlr_session_lock_v1 *
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struct wl_signal destroy;
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} events;
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void *data;
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// private state
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struct wl_listener display_destroy;
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};
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struct wlr_session_lock_v1 {
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struct wl_resource *resource;
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struct wl_list surfaces; // struct wlr_session_lock_surface_v1::link
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struct {
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struct wl_signal new_surface; // struct wlr_session_lock_surface_v1 *
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struct wl_signal unlock;
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struct wl_signal destroy;
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} events;
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void *data;
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};
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struct wlr_session_lock_surface_v1_state {
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uint32_t width, height;
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uint32_t configure_serial;
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};
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struct wlr_session_lock_surface_v1_configure {
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struct wl_list link; // wlr_session_lock_surface_v1::configure_list
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uint32_t serial;
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uint32_t width, height;
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};
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struct wlr_session_lock_surface_v1 {
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struct wl_resource *resource;
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struct wl_list link; // wlr_session_lock_v1::surfaces
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struct wlr_output *output;
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struct wlr_surface *surface;
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bool configured, mapped;
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struct wl_list configure_list; // wlr_session_lock_surface_v1_configure::link
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struct wlr_session_lock_surface_v1_state current;
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struct wlr_session_lock_surface_v1_state pending;
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struct {
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struct wl_signal map;
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struct wl_signal destroy;
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} events;
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void *data;
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// private state
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struct wl_listener output_destroy;
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struct wl_listener surface_destroy;
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};
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struct wlr_session_lock_manager_v1 *wlr_session_lock_manager_v1_create(
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struct wl_display *display);
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void wlr_session_lock_v1_send_locked(struct wlr_session_lock_v1 *lock);
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void wlr_session_lock_v1_destroy(struct wlr_session_lock_v1 *lock);
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uint32_t wlr_session_lock_surface_v1_configure(
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struct wlr_session_lock_surface_v1 *lock_surface,
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uint32_t width, uint32_t height);
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bool wlr_surface_is_session_lock_surface_v1(struct wlr_surface *surface);
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struct wlr_session_lock_surface_v1 *wlr_session_lock_surface_v1_from_wlr_surface(
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struct wlr_surface *surface);
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#endif
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@ -1,5 +1,5 @@
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wayland_protos = dependency('wayland-protocols',
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version: '>=1.24',
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version: '>=1.25',
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fallback: 'wayland-protocols',
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default_options: ['tests=false'],
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)
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@ -20,6 +20,7 @@ protocols = {
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# Staging upstream protocols
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'xdg-activation-v1': wl_protocol_dir / 'staging/xdg-activation/xdg-activation-v1.xml',
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'drm-lease-v1': wl_protocol_dir / 'staging/drm-lease/drm-lease-v1.xml',
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'ext-session-lock-v1': wl_protocol_dir / 'staging/ext-session-lock/ext-session-lock-v1.xml',
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# Unstable upstream protocols
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'fullscreen-shell-unstable-v1': wl_protocol_dir / 'unstable/fullscreen-shell/fullscreen-shell-unstable-v1.xml',
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@ -59,6 +59,7 @@ wlr_files += files(
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'wlr_relative_pointer_v1.c',
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'wlr_screencopy_v1.c',
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'wlr_server_decoration.c',
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'wlr_session_lock_v1.c',
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'wlr_subcompositor.c',
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'wlr_switch.c',
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'wlr_tablet_pad.c',
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@ -0,0 +1,457 @@
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#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdlib.h>
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#include <wayland-server-core.h>
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#include <wlr/types/wlr_session_lock_v1.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/util/log.h>
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#include "util/signal.h"
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#include "ext-session-lock-v1-protocol.h"
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#define SESSION_LOCK_VERSION 1
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static void resource_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 ext_session_lock_manager_v1_interface lock_manager_implementation;
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static const struct ext_session_lock_v1_interface lock_implementation;
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static const struct ext_session_lock_surface_v1_interface lock_surface_implementation;
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static struct wlr_session_lock_manager_v1 *lock_manager_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&ext_session_lock_manager_v1_interface, &lock_manager_implementation));
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struct wlr_session_lock_manager_v1 *lock_manager =
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wl_resource_get_user_data(resource);
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assert(lock_manager != NULL);
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return lock_manager;
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}
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static struct wlr_session_lock_v1 *lock_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&ext_session_lock_v1_interface, &lock_implementation));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_session_lock_surface_v1 *lock_surface_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&ext_session_lock_surface_v1_interface, &lock_surface_implementation));
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return wl_resource_get_user_data(resource);
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}
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static const struct wlr_surface_role lock_surface_role;
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bool wlr_surface_is_session_lock_surface_v1(struct wlr_surface *surface) {
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return surface->role == &lock_surface_role;
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}
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struct wlr_session_lock_surface_v1 *wlr_session_lock_surface_v1_from_wlr_surface(
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struct wlr_surface *surface) {
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assert(wlr_surface_is_session_lock_surface_v1(surface));
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return (struct wlr_session_lock_surface_v1 *)surface->role_data;
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}
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uint32_t wlr_session_lock_surface_v1_configure(
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struct wlr_session_lock_surface_v1 *lock_surface,
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uint32_t width, uint32_t height) {
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struct wlr_session_lock_surface_v1_configure *configure =
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calloc(1, sizeof(struct wlr_session_lock_surface_v1_configure));
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if (configure == NULL) {
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wl_resource_post_no_memory(lock_surface->resource);
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return lock_surface->pending.configure_serial;
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}
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struct wl_display *display =
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wl_client_get_display(wl_resource_get_client(lock_surface->resource));
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configure->width = width;
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configure->height = height;
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configure->serial = wl_display_next_serial(display);
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wl_list_insert(lock_surface->configure_list.prev, &configure->link);
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ext_session_lock_surface_v1_send_configure(lock_surface->resource,
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configure->serial, configure->width, configure->height);
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return configure->serial;
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}
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static void lock_surface_handle_ack_configure(struct wl_client *client,
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struct wl_resource *resource, uint32_t serial) {
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struct wlr_session_lock_surface_v1 *lock_surface =
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lock_surface_from_resource(resource);
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if (lock_surface == NULL) {
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return;
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}
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// First find the ack'ed configure
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bool found = false;
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struct wlr_session_lock_surface_v1_configure *configure, *tmp;
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wl_list_for_each(configure, &lock_surface->configure_list, link) {
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if (configure->serial == serial) {
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found = true;
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break;
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}
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}
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if (!found) {
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wl_resource_post_error(resource,
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EXT_SESSION_LOCK_SURFACE_V1_ERROR_INVALID_SERIAL,
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"ack_configure serial %" PRIu32
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" does not match any configure serial", serial);
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return;
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}
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// Then remove old configures from the list
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wl_list_for_each_safe(configure, tmp, &lock_surface->configure_list, link) {
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if (configure->serial == serial) {
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break;
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}
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wl_list_remove(&configure->link);
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free(configure);
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}
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lock_surface->pending.configure_serial = configure->serial;
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lock_surface->pending.width = configure->width;
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lock_surface->pending.height = configure->height;
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lock_surface->configured = true;
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wl_list_remove(&configure->link);
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free(configure);
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}
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static const struct ext_session_lock_surface_v1_interface lock_surface_implementation = {
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.destroy = resource_handle_destroy,
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.ack_configure = lock_surface_handle_ack_configure,
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};
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static void lock_surface_role_commit(struct wlr_surface *surface) {
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struct wlr_session_lock_surface_v1 *lock_surface =
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wlr_session_lock_surface_v1_from_wlr_surface(surface);
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if (lock_surface == NULL) {
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return;
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}
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if (!lock_surface->configured) {
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wl_resource_post_error(lock_surface->resource,
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EXT_SESSION_LOCK_SURFACE_V1_ERROR_COMMIT_BEFORE_FIRST_ACK,
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"session lock surface has never been configured");
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return;
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}
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if (surface->current.width < 0 || surface->current.height < 0 ||
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(uint32_t)surface->current.width != lock_surface->pending.width ||
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(uint32_t)surface->current.height != lock_surface->pending.height) {
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wl_resource_post_error(lock_surface->resource,
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EXT_SESSION_LOCK_SURFACE_V1_ERROR_DIMENSIONS_MISMATCH,
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"committed surface dimensions do not match last acked configure");
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return;
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}
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lock_surface->current = lock_surface->pending;
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if (!lock_surface->mapped) {
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lock_surface->mapped = true;
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wlr_signal_emit_safe(&lock_surface->events.map, NULL);
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}
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}
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static void lock_surface_role_precommit(struct wlr_surface *surface,
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const struct wlr_surface_state *state) {
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struct wlr_session_lock_surface_v1 *lock_surface =
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wlr_session_lock_surface_v1_from_wlr_surface(surface);
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if (lock_surface == NULL) {
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return;
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}
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if (state->committed & WLR_SURFACE_STATE_BUFFER && state->buffer == NULL) {
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wl_resource_post_error(lock_surface->resource,
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EXT_SESSION_LOCK_SURFACE_V1_ERROR_NULL_BUFFER,
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"session lock surfaces committed with null buffer");
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return;
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}
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}
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static const struct wlr_surface_role lock_surface_role = {
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.name = "ext_session_lock_surface_v1",
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.commit = lock_surface_role_commit,
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.precommit = lock_surface_role_precommit,
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};
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static void lock_surface_destroy(
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struct wlr_session_lock_surface_v1 *lock_surface) {
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wlr_signal_emit_safe(&lock_surface->events.destroy, NULL);
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wl_list_remove(&lock_surface->link);
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struct wlr_session_lock_surface_v1_configure *configure, *tmp;
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wl_list_for_each_safe(configure, tmp, &lock_surface->configure_list, link) {
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wl_list_remove(&configure->link);
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free(configure);
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}
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assert(wl_list_empty(&lock_surface->events.map.listener_list));
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assert(wl_list_empty(&lock_surface->events.destroy.listener_list));
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wl_list_remove(&lock_surface->output_destroy.link);
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wl_list_remove(&lock_surface->surface_destroy.link);
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lock_surface->surface->role_data = NULL;
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wl_resource_set_user_data(lock_surface->resource, NULL);
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free(lock_surface);
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}
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static void lock_surface_handle_output_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_session_lock_surface_v1 *lock_surface =
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wl_container_of(listener, lock_surface, output_destroy);
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lock_surface_destroy(lock_surface);
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}
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static void lock_surface_handle_surface_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_session_lock_surface_v1 *lock_surface =
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wl_container_of(listener, lock_surface, surface_destroy);
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lock_surface_destroy(lock_surface);
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}
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static void lock_surface_resource_destroy(struct wl_resource *resource) {
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struct wlr_session_lock_surface_v1 *lock_surface =
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lock_surface_from_resource(resource);
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if (lock_surface != NULL) {
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lock_surface_destroy(lock_surface);
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}
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}
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static void lock_handle_get_lock_surface(struct wl_client *client,
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struct wl_resource *lock_resource, uint32_t id,
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struct wl_resource *surface_resource,
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struct wl_resource *output_resource) {
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// We always need to create a lock surface resource to stay in sync
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// with the client, even if the lock resource or output resource is
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// inert. For example, if the compositor denies the lock and immediately
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// calls wlr_session_lock_v1_destroy() the client may have already sent
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// get_lock_surface requests.
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struct wl_resource *lock_surface_resource = wl_resource_create(
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client, &ext_session_lock_surface_v1_interface,
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wl_resource_get_version(lock_resource), id);
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if (lock_surface_resource == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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// Leave the lock surface resource inert for now, we will set the
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// user data at the end of this function if everything is successful.
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wl_resource_set_implementation(lock_surface_resource,
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&lock_surface_implementation, NULL,
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lock_surface_resource_destroy);
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struct wlr_session_lock_v1 *lock = lock_from_resource(lock_resource);
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if (lock == NULL) {
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return;
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}
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struct wlr_output *output = wlr_output_from_resource(output_resource);
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if (output == NULL) {
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return;
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}
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struct wlr_session_lock_surface_v1 *other;
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wl_list_for_each(other, &lock->surfaces, link) {
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if (other->output == output) {
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wl_resource_post_error(lock_resource,
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EXT_SESSION_LOCK_V1_ERROR_DUPLICATE_OUTPUT,
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"session lock surface already created for the given output");
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return;
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}
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}
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struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
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if (wlr_surface_has_buffer(surface)) {
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wl_resource_post_error(lock_resource,
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EXT_SESSION_LOCK_V1_ERROR_ALREADY_CONSTRUCTED,
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"surface already has a buffer attached");
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return;
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}
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struct wlr_session_lock_surface_v1 *lock_surface =
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calloc(1, sizeof(struct wlr_session_lock_surface_v1));
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if (lock_surface == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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if (!wlr_surface_set_role(surface, &lock_surface_role, lock_surface,
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lock_resource, EXT_SESSION_LOCK_V1_ERROR_ROLE)) {
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free(lock_surface);
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return;
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}
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lock_surface->resource = lock_surface_resource;
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wl_resource_set_user_data(lock_surface_resource, lock_surface);
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wl_list_insert(&lock->surfaces, &lock_surface->link);
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lock_surface->output = output;
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lock_surface->surface = surface;
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wl_list_init(&lock_surface->configure_list);
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wl_signal_init(&lock_surface->events.map);
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wl_signal_init(&lock_surface->events.destroy);
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wl_signal_add(&output->events.destroy, &lock_surface->output_destroy);
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lock_surface->output_destroy.notify = lock_surface_handle_output_destroy;
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wl_signal_add(&surface->events.destroy, &lock_surface->surface_destroy);
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lock_surface->surface_destroy.notify = lock_surface_handle_surface_destroy;
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wlr_signal_emit_safe(&lock->events.new_surface, lock_surface);
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}
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static void lock_handle_unlock_and_destroy(struct wl_client *client,
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struct wl_resource *lock_resource) {
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struct wlr_session_lock_v1 *lock = lock_from_resource(lock_resource);
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if (lock == NULL) {
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return;
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}
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wlr_signal_emit_safe(&lock->events.unlock, NULL);
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wl_resource_destroy(lock_resource);
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}
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||||
|
||||
static const struct ext_session_lock_v1_interface lock_implementation = {
|
||||
.destroy = resource_handle_destroy,
|
||||
.get_lock_surface = lock_handle_get_lock_surface,
|
||||
.unlock_and_destroy = lock_handle_unlock_and_destroy,
|
||||
};
|
||||
|
||||
void wlr_session_lock_v1_send_locked(struct wlr_session_lock_v1 *lock) {
|
||||
ext_session_lock_v1_send_locked(lock->resource);
|
||||
}
|
||||
|
||||
static void lock_destroy(struct wlr_session_lock_v1 *lock) {
|
||||
struct wlr_session_lock_surface_v1 *lock_surface, *tmp;
|
||||
wl_list_for_each_safe(lock_surface, tmp, &lock->surfaces, link) {
|
||||
lock_surface_destroy(lock_surface);
|
||||
}
|
||||
assert(wl_list_empty(&lock->surfaces));
|
||||
|
||||
wlr_signal_emit_safe(&lock->events.destroy, NULL);
|
||||
|
||||
assert(wl_list_empty(&lock->events.new_surface.listener_list));
|
||||
assert(wl_list_empty(&lock->events.unlock.listener_list));
|
||||
assert(wl_list_empty(&lock->events.destroy.listener_list));
|
||||
|
||||
wl_resource_set_user_data(lock->resource, NULL);
|
||||
free(lock);
|
||||
}
|
||||
|
||||
void wlr_session_lock_v1_destroy(struct wlr_session_lock_v1 *lock) {
|
||||
ext_session_lock_v1_send_finished(lock->resource);
|
||||
lock_destroy(lock);
|
||||
}
|
||||
|
||||
static void lock_resource_destroy(struct wl_resource *lock_resource) {
|
||||
struct wlr_session_lock_v1 *lock = lock_from_resource(lock_resource);
|
||||
if (lock != NULL) {
|
||||
lock_destroy(lock);
|
||||
}
|
||||
}
|
||||
|
||||
static void lock_manager_handle_lock(struct wl_client *client,
|
||||
struct wl_resource *manager_resource, uint32_t id) {
|
||||
struct wlr_session_lock_manager_v1 *lock_manager =
|
||||
lock_manager_from_resource(manager_resource);
|
||||
|
||||
struct wlr_session_lock_v1 *lock =
|
||||
calloc(1, sizeof(struct wlr_session_lock_v1));
|
||||
if (lock == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
|
||||
lock->resource = wl_resource_create(client, &ext_session_lock_v1_interface,
|
||||
wl_resource_get_version(manager_resource), id);
|
||||
if (lock->resource == NULL) {
|
||||
free(lock);
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
|
||||
wl_list_init(&lock->surfaces);
|
||||
|
||||
wl_signal_init(&lock->events.new_surface);
|
||||
wl_signal_init(&lock->events.unlock);
|
||||
wl_signal_init(&lock->events.destroy);
|
||||
|
||||
wl_resource_set_implementation(lock->resource, &lock_implementation,
|
||||
lock, lock_resource_destroy);
|
||||
|
||||
wlr_signal_emit_safe(&lock_manager->events.new_lock, lock);
|
||||
}
|
||||
|
||||
static const struct ext_session_lock_manager_v1_interface lock_manager_implementation = {
|
||||
.destroy = resource_handle_destroy,
|
||||
.lock = lock_manager_handle_lock,
|
||||
};
|
||||
|
||||
static void lock_manager_bind(struct wl_client *client, void *data,
|
||||
uint32_t version, uint32_t id) {
|
||||
struct wlr_session_lock_manager_v1 *lock_manager = data;
|
||||
|
||||
struct wl_resource *resource = wl_resource_create(
|
||||
client, &ext_session_lock_manager_v1_interface, version, id);
|
||||
if (resource == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(resource, &lock_manager_implementation,
|
||||
lock_manager, NULL);
|
||||
}
|
||||
|
||||
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
||||
struct wlr_session_lock_manager_v1 *lock_manager =
|
||||
wl_container_of(listener, lock_manager, display_destroy);
|
||||
wlr_signal_emit_safe(&lock_manager->events.destroy, NULL);
|
||||
wl_list_remove(&lock_manager->display_destroy.link);
|
||||
|
||||
wl_global_destroy(lock_manager->global);
|
||||
|
||||
assert(wl_list_empty(&lock_manager->events.new_lock.listener_list));
|
||||
assert(wl_list_empty(&lock_manager->events.destroy.listener_list));
|
||||
|
||||
free(lock_manager);
|
||||
}
|
||||
|
||||
struct wlr_session_lock_manager_v1 *wlr_session_lock_manager_v1_create(struct wl_display *display) {
|
||||
struct wlr_session_lock_manager_v1 *lock_manager =
|
||||
calloc(1, sizeof(struct wlr_session_lock_manager_v1));
|
||||
if (lock_manager == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct wl_global *global = wl_global_create(display,
|
||||
&ext_session_lock_manager_v1_interface, SESSION_LOCK_VERSION,
|
||||
lock_manager, lock_manager_bind);
|
||||
if (global == NULL) {
|
||||
free(lock_manager);
|
||||
return NULL;
|
||||
}
|
||||
lock_manager->global = global;
|
||||
|
||||
wl_signal_init(&lock_manager->events.new_lock);
|
||||
wl_signal_init(&lock_manager->events.destroy);
|
||||
|
||||
lock_manager->display_destroy.notify = handle_display_destroy;
|
||||
wl_display_add_destroy_listener(display, &lock_manager->display_destroy);
|
||||
|
||||
return lock_manager;
|
||||
}
|
||||
Loading…
Reference in New Issue