mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
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wlr_xdg_session_management_v1: new protocol implementation
See https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/18
This commit is contained in:
Simon Ser
parent
35c35530a3
commit
781748d25d
4 changed files with 580 additions and 1 deletions
145
include/wlr/types/wlr_xdg_session_management_v1.h
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145
include/wlr/types/wlr_xdg_session_management_v1.h
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@ -0,0 +1,145 @@
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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_XDG_SESSION_MANAGEMENT_V1_H
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#define WLR_TYPES_WLR_XDG_SESSION_MANAGEMENT_V1_H
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#include <wayland-server-core.h>
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#include <wayland-protocols/xdg-session-management-v1-enum.h>
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/**
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* A toplevel part of a session.
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*/
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struct wlr_xdg_toplevel_session_v1 {
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struct wl_resource *resource;
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struct wlr_xdg_session_v1 *session;
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struct wlr_xdg_toplevel *toplevel;
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struct wl_list link; // wlr_xdg_session_v1.toplevels
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// Client-provided identifier, unique per session.
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char *name;
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struct {
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struct wl_signal destroy;
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// Toplevel session name has changed.
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struct wl_signal rename;
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} events;
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struct {
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bool restorable;
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struct wl_listener toplevel_destroy;
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} WLR_PRIVATE;
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};
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struct wlr_xdg_session_v1_remove_toplevel_event {
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const char *name;
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};
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/**
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* An application session.
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*
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* When a new session is created, compositors should load any saved state based
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* on wlr_xdg_session_v1.id (if non-NULL), then call
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* wlr_xdg_session_v1_notify_created() or wlr_xdg_session_v1_notify_restored().
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*
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* Compositors should save toplevel state for all toplevels added to the
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* session.
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*/
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struct wlr_xdg_session_v1 {
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struct wl_resource *resource;
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struct wl_list link; // wlr_xdg_session_manager_v1.sessions
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enum xdg_session_manager_v1_reason reason;
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char *id;
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struct wl_list toplevels; // wlr_xdg_toplevel_session_v1.link
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struct {
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struct wl_signal destroy;
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// All session saved state should be erased.
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struct wl_signal remove;
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// Toplevel state should be tracked as part of the session.
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struct wl_signal add_toplevel; // struct wlr_xdg_toplevel_session_v1 *
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// If the toplevel state was saved, it should be restored and
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// wlr_xdg_toplevel_session_v1_notify_restored() should be called. Then
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// toplevel state should be tracked as part of the session.
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struct wl_signal restore_toplevel; // struct wlr_xdg_toplevel_session_v1 *
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// Toplevel state should no longer be tracked as part of the session.
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struct wl_signal remove_toplevel; // struct wlr_xdg_session_v1_remove_toplevel_event *
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} events;
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struct {
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bool initialized; // added or restored
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} WLR_PRIVATE;
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};
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/**
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* Session manager global.
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*/
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struct wlr_xdg_session_manager_v1 {
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struct wl_global *global;
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struct wl_list sessions; // wlr_xdg_session_v1.link
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struct {
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struct wl_signal destroy;
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struct wl_signal new_session; // struct wlr_xdg_session_v1 *
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} events;
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struct {
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struct wl_listener display_destroy;
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} WLR_PRIVATE;
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};
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/**
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* Create the session manager global.
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*/
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struct wlr_xdg_session_manager_v1 *wlr_xdg_session_manager_v1_create(
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struct wl_display *display, uint32_t version);
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/**
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* Notify that a new session state has been created.
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*
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* This function should be called in response to
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* wlr_xdg_session_manager_v1.events.new_session if no state could be restored.
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*/
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void wlr_xdg_session_v1_notify_created(struct wlr_xdg_session_v1 *session, const char *session_id);
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/**
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* Notify that the session has been restored.
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*
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* This function should be called in response to
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* wlr_xdg_session_manager_v1.events.new_session if at least some state could
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* be restored.
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*/
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void wlr_xdg_session_v1_notify_restored(struct wlr_xdg_session_v1 *session);
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/**
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* Notify that the session has been taken over by another client.
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*
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* This function destroys the session.
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*/
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void wlr_xdg_session_v1_notify_replaced_and_destroy(struct wlr_xdg_session_v1 *session);
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/**
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* Notify that the toplevel state has been restored.
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*
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* This event is part of a toplevel configure sequence.
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*
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* This function should be called in response to
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* wlr_xdg_session_v1.events.restore_toplevel if the toplevel was successfully
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* restored.
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*/
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uint32_t wlr_xdg_toplevel_session_v1_notify_restored(
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struct wlr_xdg_toplevel_session_v1 *toplevel_session);
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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: '>=1.47',
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version: '>=1.48',
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fallback: 'wayland-protocols',
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default_options: ['tests=false'],
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)
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@ -44,6 +44,7 @@ protocols = {
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'single-pixel-buffer-v1': wl_protocol_dir / 'staging/single-pixel-buffer/single-pixel-buffer-v1.xml',
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'xdg-activation-v1': wl_protocol_dir / 'staging/xdg-activation/xdg-activation-v1.xml',
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'xdg-dialog-v1': wl_protocol_dir / 'staging/xdg-dialog/xdg-dialog-v1.xml',
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'xdg-session-management-v1': wl_protocol_dir / 'staging/xdg-session-management/xdg-session-management-v1.xml',
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'xdg-system-bell-v1': wl_protocol_dir / 'staging/xdg-system-bell/xdg-system-bell-v1.xml',
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'xdg-toplevel-icon-v1': wl_protocol_dir / 'staging/xdg-toplevel-icon/xdg-toplevel-icon-v1.xml',
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'xdg-toplevel-tag-v1': wl_protocol_dir / 'staging/xdg-toplevel-tag/xdg-toplevel-tag-v1.xml',
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@ -105,6 +105,7 @@ wlr_files += files(
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'wlr_xdg_foreign_v2.c',
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'wlr_xdg_foreign_registry.c',
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'wlr_xdg_output_v1.c',
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'wlr_xdg_session_management_v1.c',
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'wlr_xdg_system_bell_v1.c',
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'wlr_xdg_toplevel_icon_v1.c',
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'wlr_xdg_toplevel_tag_v1.c',
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432
types/wlr_xdg_session_management_v1.c
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432
types/wlr_xdg_session_management_v1.c
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@ -0,0 +1,432 @@
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wlr/types/wlr_xdg_session_management_v1.h>
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#include <wlr/types/wlr_xdg_shell.h>
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#include "xdg-session-management-v1-protocol.h"
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#define MANAGER_VERSION 1
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static const struct xdg_toplevel_session_v1_interface toplevel_session_impl;
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static const struct xdg_session_v1_interface session_impl;
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static const struct xdg_session_manager_v1_interface manager_impl;
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static struct wlr_xdg_toplevel_session_v1 *toplevel_session_from_resource(struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &xdg_toplevel_session_v1_interface, &toplevel_session_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_xdg_session_v1 *session_from_resource(struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &xdg_session_v1_interface, &session_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_xdg_session_manager_v1 *manager_from_resource(struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &xdg_session_manager_v1_interface, &manager_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_xdg_toplevel_session_v1 *session_find_toplevel(struct wlr_xdg_session_v1 *session,
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const char *name);
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static void toplevel_session_handle_rename(struct wl_client *client,
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struct wl_resource *toplevel_session_resource, const char *name) {
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struct wlr_xdg_toplevel_session_v1 *toplevel_session =
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toplevel_session_from_resource(toplevel_session_resource);
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if (toplevel_session == NULL) {
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return;
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}
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if (strcmp(toplevel_session->name, name) == 0) {
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return;
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}
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if (session_find_toplevel(toplevel_session->session, name) != NULL) {
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wl_resource_post_error(toplevel_session_resource,
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XDG_SESSION_V1_ERROR_NAME_IN_USE,
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"Name already in use by another toplevel in the same session");
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return;
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}
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char *name_copy = strdup(name);
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if (name_copy == NULL) {
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wl_resource_post_no_memory(toplevel_session_resource);
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return;
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}
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free(toplevel_session->name);
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toplevel_session->name = name_copy;
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wl_signal_emit_mutable(&toplevel_session->events.rename, NULL);
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}
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static void toplevel_session_handle_destroy(struct wl_client *client,
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struct wl_resource *toplevel_session_resource) {
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wl_resource_destroy(toplevel_session_resource);
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}
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static const struct xdg_toplevel_session_v1_interface toplevel_session_impl = {
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.destroy = toplevel_session_handle_destroy,
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.rename = toplevel_session_handle_rename,
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};
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uint32_t wlr_xdg_toplevel_session_v1_notify_restored(
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struct wlr_xdg_toplevel_session_v1 *toplevel_session) {
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assert(toplevel_session->restorable);
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toplevel_session->restorable = false;
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xdg_toplevel_session_v1_send_restored(toplevel_session->resource);
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return wlr_xdg_surface_schedule_configure(toplevel_session->toplevel->base);
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}
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static void toplevel_session_destroy(struct wlr_xdg_toplevel_session_v1 *toplevel_session) {
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if (toplevel_session == NULL) {
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return;
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}
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wl_list_remove(&toplevel_session->toplevel_destroy.link);
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wl_signal_emit_mutable(&toplevel_session->events.destroy, NULL);
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assert(wl_list_empty(&toplevel_session->events.destroy.listener_list));
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assert(wl_list_empty(&toplevel_session->events.rename.listener_list));
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wl_resource_set_user_data(toplevel_session->resource, NULL); // make inert
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wl_list_remove(&toplevel_session->link);
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free(toplevel_session->name);
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free(toplevel_session);
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}
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static void toplevel_session_handle_resource_destroy(struct wl_resource *resource) {
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struct wlr_xdg_toplevel_session_v1 *toplevel_session = toplevel_session_from_resource(resource);
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toplevel_session_destroy(toplevel_session);
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}
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static void toplevel_session_handle_toplevel_destroy(struct wl_listener *listener, void *data) {
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struct wlr_xdg_toplevel_session_v1 *toplevel_session =
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wl_container_of(listener, toplevel_session, toplevel_destroy);
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toplevel_session_destroy(toplevel_session);
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}
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static void session_handle_remove(struct wl_client *client, struct wl_resource *session_resource) {
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struct wlr_xdg_session_v1 *session = session_from_resource(session_resource);
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wl_signal_emit_mutable(&session->events.remove, NULL);
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}
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static struct wlr_xdg_toplevel_session_v1 *session_find_toplevel(struct wlr_xdg_session_v1 *session,
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const char *name) {
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struct wlr_xdg_toplevel_session_v1 *toplevel_session;
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wl_list_for_each(toplevel_session, &session->toplevels, link) {
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if (strcmp(toplevel_session->name, name) == 0) {
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return toplevel_session;
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}
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}
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return NULL;
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}
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static struct wlr_xdg_toplevel_session_v1 *session_create_toplevel(struct wl_resource *session_resource,
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uint32_t id, struct wl_resource *toplevel_resource, const char *name) {
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struct wlr_xdg_session_v1 *session = session_from_resource(session_resource);
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struct wlr_xdg_toplevel *toplevel = wlr_xdg_toplevel_from_resource(toplevel_resource);
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struct wl_client *client = wl_resource_get_client(session_resource);
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uint32_t version = wl_resource_get_version(session_resource);
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struct wl_resource *resource = wl_resource_create(client,
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&xdg_toplevel_session_v1_interface, version, id);
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if (resource == NULL) {
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wl_resource_post_no_memory(session_resource);
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return NULL;
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}
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wl_resource_set_implementation(resource, &toplevel_session_impl, NULL,
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toplevel_session_handle_resource_destroy);
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if (session == NULL || toplevel == NULL) {
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return NULL;
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}
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if (session_find_toplevel(session, name) != NULL) {
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wl_resource_post_error(session->resource, XDG_SESSION_V1_ERROR_NAME_IN_USE,
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"Name already in use by a toplevel in the same session");
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return NULL;
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}
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// TODO: post already_added error if toplevel was already added to *any* session
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struct wlr_xdg_toplevel_session_v1 *toplevel_session;
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wl_list_for_each(toplevel_session, &session->toplevels, link) {
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if (toplevel_session->toplevel == toplevel) {
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wl_resource_post_error(session->resource, XDG_SESSION_V1_ERROR_ALREADY_ADDED,
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"Toplevel already added to session");
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return NULL;
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}
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}
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toplevel_session = calloc(1, sizeof(*toplevel_session));
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if (toplevel_session == NULL) {
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wl_resource_post_no_memory(session_resource);
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return NULL;
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}
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toplevel_session->resource = resource;
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toplevel_session->session = session;
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toplevel_session->toplevel = toplevel;
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toplevel_session->name = strdup(name);
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if (toplevel_session->name == NULL) {
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wl_resource_post_no_memory(session_resource);
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free(toplevel_session);
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return NULL;
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}
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toplevel_session->toplevel_destroy.notify = toplevel_session_handle_toplevel_destroy;
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wl_signal_add(&toplevel->events.destroy, &toplevel_session->toplevel_destroy);
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wl_resource_set_user_data(resource, toplevel_session);
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wl_list_insert(&session->toplevels, &toplevel_session->link);
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return toplevel_session;
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}
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static void session_handle_add_toplevel(struct wl_client *client, struct wl_resource *session_resource,
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uint32_t id, struct wl_resource *toplevel_resource, const char *name) {
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struct wlr_xdg_session_v1 *session = session_from_resource(session_resource);
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struct wlr_xdg_toplevel_session_v1 *toplevel_session =
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session_create_toplevel(session_resource, id, toplevel_resource, name);
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if (toplevel_session == NULL) {
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return;
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}
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wl_signal_emit_mutable(&session->events.add_toplevel, toplevel_session);
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}
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static void session_handle_restore_toplevel(struct wl_client *client, struct wl_resource *session_resource,
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uint32_t id, struct wl_resource *toplevel_resource, const char *name) {
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struct wlr_xdg_session_v1 *session = session_from_resource(session_resource);
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struct wlr_xdg_toplevel *toplevel = wlr_xdg_toplevel_from_resource(toplevel_resource);
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if (toplevel && toplevel->base->surface->mapped) {
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wl_resource_post_error(session_resource, XDG_SESSION_V1_ERROR_ALREADY_MAPPED,
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"Restored toplevel is already mapped");
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return;
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}
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struct wlr_xdg_toplevel_session_v1 *toplevel_session =
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session_create_toplevel(session_resource, id, toplevel_resource, name);
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if (toplevel_session == NULL) {
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return;
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}
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toplevel_session->restorable = true;
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wl_signal_emit_mutable(&session->events.restore_toplevel, toplevel_session);
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}
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static void session_handle_remove_toplevel(struct wl_client *client, struct wl_resource *session_resource,
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const char *name) {
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struct wlr_xdg_session_v1 *session = session_from_resource(session_resource);
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if (session == NULL) {
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return;
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}
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struct wlr_xdg_session_v1_remove_toplevel_event event = {
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.name = name,
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};
|
||||
wl_signal_emit_mutable(&session->events.remove_toplevel, &event);
|
||||
|
||||
struct wlr_xdg_toplevel_session_v1 *toplevel_session = session_find_toplevel(session, name);
|
||||
toplevel_session_destroy(toplevel_session);
|
||||
}
|
||||
|
||||
static void session_handle_destroy(struct wl_client *client, struct wl_resource *session_resource) {
|
||||
wl_resource_destroy(session_resource);
|
||||
}
|
||||
|
||||
static const struct xdg_session_v1_interface session_impl = {
|
||||
.destroy = session_handle_destroy,
|
||||
.remove = session_handle_remove,
|
||||
.add_toplevel = session_handle_add_toplevel,
|
||||
.restore_toplevel = session_handle_restore_toplevel,
|
||||
.remove_toplevel = session_handle_remove_toplevel,
|
||||
};
|
||||
|
||||
static void session_destroy(struct wlr_xdg_session_v1 *session) {
|
||||
if (session == NULL) {
|
||||
return;
|
||||
}
|
||||
|
||||
wl_signal_emit_mutable(&session->events.destroy, NULL);
|
||||
|
||||
assert(wl_list_empty(&session->events.destroy.listener_list));
|
||||
assert(wl_list_empty(&session->events.remove.listener_list));
|
||||
assert(wl_list_empty(&session->events.add_toplevel.listener_list));
|
||||
assert(wl_list_empty(&session->events.restore_toplevel.listener_list));
|
||||
assert(wl_list_empty(&session->events.remove_toplevel.listener_list));
|
||||
|
||||
struct wlr_xdg_toplevel_session_v1 *toplevel_session, *toplevel_session_tmp;
|
||||
wl_list_for_each_safe(toplevel_session, toplevel_session_tmp, &session->toplevels, link) {
|
||||
toplevel_session_destroy(toplevel_session);
|
||||
}
|
||||
|
||||
wl_resource_set_user_data(session->resource, NULL); // make inert
|
||||
wl_list_remove(&session->link);
|
||||
free(session->id);
|
||||
free(session);
|
||||
}
|
||||
|
||||
static void session_handle_resource_destroy(struct wl_resource *resource) {
|
||||
struct wlr_xdg_session_v1 *session = session_from_resource(resource);
|
||||
session_destroy(session);
|
||||
}
|
||||
|
||||
void wlr_xdg_session_v1_notify_created(struct wlr_xdg_session_v1 *session, const char *session_id) {
|
||||
assert(!session->initialized);
|
||||
|
||||
char *session_id_copy = strdup(session_id);
|
||||
if (session_id_copy == NULL) {
|
||||
wl_resource_post_no_memory(session->resource);
|
||||
return;
|
||||
}
|
||||
free(session->id);
|
||||
session->id = session_id_copy;
|
||||
|
||||
xdg_session_v1_send_created(session->resource, session_id);
|
||||
|
||||
session->initialized = true;
|
||||
}
|
||||
|
||||
void wlr_xdg_session_v1_notify_restored(struct wlr_xdg_session_v1 *session) {
|
||||
assert(!session->initialized);
|
||||
assert(session->id != NULL);
|
||||
|
||||
xdg_session_v1_send_restored(session->resource);
|
||||
|
||||
session->initialized = true;
|
||||
}
|
||||
|
||||
void wlr_xdg_session_v1_notify_replaced_and_destroy(struct wlr_xdg_session_v1 *session) {
|
||||
xdg_session_v1_send_replaced(session->resource);
|
||||
session_destroy(session);
|
||||
}
|
||||
|
||||
static void manager_handle_get_session(struct wl_client *client,
|
||||
struct wl_resource *manager_resource, uint32_t id, uint32_t reason,
|
||||
const char *session_id) {
|
||||
struct wlr_xdg_session_manager_v1 *manager = manager_from_resource(manager_resource);
|
||||
uint32_t version = wl_resource_get_version(manager_resource);
|
||||
|
||||
if (!xdg_session_manager_v1_reason_is_valid(reason, version)) {
|
||||
wl_resource_post_error(manager_resource, XDG_SESSION_MANAGER_V1_ERROR_INVALID_REASON,
|
||||
"Invalid reason");
|
||||
return;
|
||||
}
|
||||
|
||||
struct wlr_xdg_session_v1 *sess;
|
||||
wl_list_for_each(sess, &manager->sessions, link) {
|
||||
if (wl_resource_get_client(sess->resource) == client && sess->id != NULL &&
|
||||
strcmp(sess->id, session_id) == 0) {
|
||||
wl_resource_post_error(manager_resource,
|
||||
XDG_SESSION_MANAGER_V1_ERROR_IN_USE,
|
||||
"Session ID already in use by another session object");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
struct wlr_xdg_session_v1 *session = calloc(1, sizeof(*session));
|
||||
if (session == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
|
||||
char *session_id_copy = NULL;
|
||||
if (session_id != NULL) {
|
||||
session_id_copy = strdup(session_id);
|
||||
if (session_id_copy == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
free(session);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
session->resource = wl_resource_create(client,
|
||||
&xdg_session_v1_interface, version, id);
|
||||
if (session->resource == NULL) {
|
||||
wl_resource_post_no_memory(manager_resource);
|
||||
free(session);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(session->resource, &session_impl, session,
|
||||
session_handle_resource_destroy);
|
||||
|
||||
wl_signal_init(&session->events.destroy);
|
||||
wl_signal_init(&session->events.remove);
|
||||
wl_signal_init(&session->events.add_toplevel);
|
||||
wl_signal_init(&session->events.restore_toplevel);
|
||||
wl_signal_init(&session->events.remove_toplevel);
|
||||
|
||||
session->reason = reason;
|
||||
session->id = session_id_copy;
|
||||
wl_list_init(&session->toplevels);
|
||||
|
||||
wl_list_insert(&manager->sessions, &session->link);
|
||||
|
||||
wl_signal_emit_mutable(&manager->events.new_session, session);
|
||||
}
|
||||
|
||||
static void manager_handle_destroy(struct wl_client *client, struct wl_resource *manager_resource) {
|
||||
wl_resource_destroy(manager_resource);
|
||||
}
|
||||
|
||||
static const struct xdg_session_manager_v1_interface manager_impl = {
|
||||
.destroy = manager_handle_destroy,
|
||||
.get_session = manager_handle_get_session,
|
||||
};
|
||||
|
||||
static void manager_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id) {
|
||||
struct wlr_xdg_session_manager_v1 *manager = data;
|
||||
|
||||
struct wl_resource *resource = wl_resource_create(client,
|
||||
&xdg_session_manager_v1_interface, version, id);
|
||||
if (resource == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(resource, &manager_impl, manager, NULL);
|
||||
}
|
||||
|
||||
static void manager_handle_display_destroy(struct wl_listener *listener, void *data) {
|
||||
struct wlr_xdg_session_manager_v1 *manager = wl_container_of(listener, manager, display_destroy);
|
||||
|
||||
wl_signal_emit_mutable(&manager->events.destroy, NULL);
|
||||
|
||||
assert(wl_list_empty(&manager->events.destroy.listener_list));
|
||||
assert(wl_list_empty(&manager->events.new_session.listener_list));
|
||||
|
||||
wl_list_remove(&manager->display_destroy.link);
|
||||
wl_global_destroy(manager->global);
|
||||
free(manager);
|
||||
}
|
||||
|
||||
struct wlr_xdg_session_manager_v1 *wlr_xdg_session_manager_v1_create(
|
||||
struct wl_display *display, uint32_t version) {
|
||||
assert(version <= MANAGER_VERSION);
|
||||
|
||||
struct wlr_xdg_session_manager_v1 *manager = calloc(1, sizeof(*manager));
|
||||
if (manager == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
manager->global = wl_global_create(display, &xdg_session_manager_v1_interface,
|
||||
version, manager, manager_bind);
|
||||
if (manager->global == NULL) {
|
||||
free(manager);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
wl_signal_init(&manager->events.destroy);
|
||||
wl_signal_init(&manager->events.new_session);
|
||||
|
||||
wl_list_init(&manager->sessions);
|
||||
|
||||
manager->display_destroy.notify = manager_handle_display_destroy;
|
||||
wl_display_add_destroy_listener(display, &manager->display_destroy);
|
||||
|
||||
return manager;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue