Add server-decoration skeleton
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emersion
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#ifndef WLR_TYPES_WLR_SERVER_DECORATION_H
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#define WLR_TYPES_WLR_SERVER_DECORATION_H
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#include <wayland-server.h>
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struct wlr_server_decoration_manager {
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struct wl_global *wl_global;
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struct wl_list decorations; // wlr_server_decoration::link
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void *data;
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};
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struct wlr_server_decoration {
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struct wl_resource *resource;
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struct wl_list link;
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struct {
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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_server_decoration_manager *wlr_server_decoration_manager_create(
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struct wl_display *display);
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void wlr_server_decoration_manager_destroy(
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struct wlr_server_decoration_manager *manager);
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#endif
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@ -24,12 +24,14 @@ protocols = [
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[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
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'gamma-control.xml',
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'screenshooter.xml',
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'server-decoration.xml',
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]
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client_protocols = [
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[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
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'gamma-control.xml',
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'screenshooter.xml',
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'server-decoration.xml',
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]
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wl_protos_src = []
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@ -0,0 +1,94 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="server_decoration">
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<copyright><![CDATA[
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Copyright (C) 2015 Martin Gräßlin
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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]]></copyright>
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<interface name="org_kde_kwin_server_decoration_manager" version="1">
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<description summary="Server side window decoration manager">
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This interface allows to coordinate whether the server should create
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a server-side window decoration around a wl_surface representing a
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shell surface (wl_shell_surface or similar). By announcing support
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for this interface the server indicates that it supports server
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side decorations.
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</description>
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<request name="create">
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<description summary="Create a server-side decoration object for a given surface">
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When a client creates a server-side decoration object it indicates
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that it supports the protocol. The client is supposed to tell the
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server whether it wants server-side decorations or will provide
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client-side decorations.
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If the client does not create a server-side decoration object for
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a surface the server interprets this as lack of support for this
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protocol and considers it as client-side decorated. Nevertheless a
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client-side decorated surface should use this protocol to indicate
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to the server that it does not want a server-side deco.
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</description>
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<arg name="id" type="new_id" interface="org_kde_kwin_server_decoration"/>
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<arg name="surface" type="object" interface="wl_surface"/>
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</request>
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<enum name="mode">
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<description summary="Possible values to use in request_mode and the event mode."/>
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<entry name="None" value="0" summary="Undecorated: The surface is not decorated at all, neither server nor client-side. An example is a popup surface which should not be decorated."/>
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<entry name="Client" value="1" summary="Client-side decoration: The decoration is part of the surface and the client."/>
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<entry name="Server" value="2" summary="Server-side decoration: The server embeds the surface into a decoration frame."/>
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</enum>
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<event name="default_mode">
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<description summary="The default mode used on the server">
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This event is emitted directly after binding the interface. It contains
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the default mode for the decoration. When a new server decoration object
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is created this new object will be in the default mode until the first
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request_mode is requested.
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The server may change the default mode at any time.
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</description>
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<arg name="mode" type="uint" summary="The default decoration mode applied to newly created server decorations."/>
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</event>
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</interface>
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<interface name="org_kde_kwin_server_decoration" version="1">
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<request name="release" type="destructor">
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<description summary="release the server decoration object"/>
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</request>
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<enum name="mode">
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<description summary="Possible values to use in request_mode and the event mode."/>
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<entry name="None" value="0" summary="Undecorated: The surface is not decorated at all, neither server nor client-side. An example is a popup surface which should not be decorated."/>
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<entry name="Client" value="1" summary="Client-side decoration: The decoration is part of the surface and the client."/>
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<entry name="Server" value="2" summary="Server-side decoration: The server embeds the surface into a decoration frame."/>
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</enum>
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<request name="request_mode">
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<description summary="The decoration mode the surface wants to use."/>
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<arg name="mode" type="uint" summary="The mode this surface wants to use."/>
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</request>
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<event name="mode">
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<description summary="The new decoration mode applied by the server">
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This event is emitted directly after the decoration is created and
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represents the base decoration policy by the server. E.g. a server
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which wants all surfaces to be client-side decorated will send Client,
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a server which wants server-side decoration will send Server.
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The client can request a different mode through the decoration request.
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The server will acknowledge this by another event with the same mode. So
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even if a server prefers server-side decoration it's possible to force a
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client-side decoration.
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The server may emit this event at any time. In this case the client can
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again request a different mode. It's the responsibility of the server to
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prevent a feedback loop.
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</description>
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<arg name="mode" type="uint" summary="The decoration mode applied to the surface by the server."/>
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</event>
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</interface>
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</protocol>
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@ -15,6 +15,7 @@ lib_wlr_types = static_library(
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'wlr_region.c',
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'wlr_screenshooter.c',
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'wlr_seat.c',
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'wlr_server_decoration.c',
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'wlr_surface.c',
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'wlr_tablet_pad.c',
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'wlr_tablet_tool.c',
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@ -0,0 +1,64 @@
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#include <assert.h>
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#include <stdlib.h>
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#include <server-decoration-protocol.h>
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#include <wlr/types/wlr_server_decoration.h>
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static const struct org_kde_kwin_server_decoration_manager_interface
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server_decoration_manager_impl = {
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// TODO
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};
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static void server_decoration_manager_bind(struct wl_client *client,
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void *_manager, uint32_t version, uint32_t id) {
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struct wlr_server_decoration_manager *manager = _manager;
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assert(client && manager);
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struct wl_resource *resource = wl_resource_create(client,
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&org_kde_kwin_server_decoration_manager_interface, version, id);
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if (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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wl_resource_set_implementation(resource, &server_decoration_manager_impl,
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manager, NULL);
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}
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static void server_decoration_destroy(
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struct wlr_server_decoration *decoration) {
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wl_signal_emit(&decoration->events.destroy, decoration);
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wl_resource_set_user_data(decoration->resource, NULL);
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wl_list_remove(&decoration->link);
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free(decoration);
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}
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struct wlr_server_decoration_manager *wlr_server_decoration_manager_create(
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struct wl_display *display) {
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struct wlr_server_decoration_manager *manager =
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calloc(1, sizeof(struct wlr_server_decoration_manager));
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if (manager == NULL) {
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return NULL;
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}
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manager->wl_global = wl_global_create(display,
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&org_kde_kwin_server_decoration_manager_interface, 1, manager,
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server_decoration_manager_bind);
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if (manager->wl_global == NULL) {
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free(manager);
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return NULL;
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}
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wl_list_init(&manager->decorations);
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return manager;
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}
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void wlr_server_decoration_manager_destroy(
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struct wlr_server_decoration_manager *manager) {
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if (manager == NULL) {
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return;
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}
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struct wlr_server_decoration *decoration, *tmp;
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wl_list_for_each_safe(decoration, tmp, &manager->decorations,
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link) {
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server_decoration_destroy(decoration);
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}
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wl_global_destroy(manager->wl_global);
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free(manager);
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}
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