1 /********************************************************************
2 Copyright © 2020 Roman Gilg <subdiff@gmail.com>
3 
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) version 3, or any
8 later version accepted by the membership of KDE e.V. (or its
9 successor approved by the membership of KDE e.V.), which shall
10 act as a proxy defined in Section 6 of version 3 of the license.
11 
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 Lesser General Public License for more details.
16 
17 You should have received a copy of the GNU Lesser General Public
18 License along with this library.  If not, see <http://www.gnu.org/licenses/>.
19 *********************************************************************/
20 #pragma once
21 
22 #include "subcompositor.h"
23 #include "surface_p.h"
24 
25 #include "wayland/resource.h"
26 
27 #include <QPoint>
28 
29 #include <wayland-server.h>
30 
31 namespace Wrapland::Server
32 {
33 
34 class Subsurface::Private : public Wayland::Resource<Subsurface>
35 {
36 public:
37     Private(Client* client,
38             uint32_t version,
39             uint32_t id,
40             Surface* surface,
41             Surface* parent,
42             Subsurface* q);
43 
44     /**
45      * Initializes the subsurface in relation to its parent. Needs to be after the subsurface
46      * is created already since we access its data from outside.
47      */
48     void init();
49 
50     void applyCached(bool force);
51     void commit();
52 
53     QPoint pos = QPoint(0, 0);
54     QPoint scheduledPos = QPoint();
55     bool scheduledPosChange = false;
56     Mode mode = Mode::Synchronized;
57 
58     Surface* surface = nullptr;
59     Surface* parent = nullptr;
60     SurfaceState cached;
61 
62 private:
63     void setMode(Mode mode);
64     void setPosition(const QPoint& pos);
65     void placeAbove(Surface* sibling);
66     void placeBelow(Surface* sibling);
67 
68     static void
69     setPositionCallback(wl_client* wlClient, wl_resource* wlResource, int32_t x, int32_t y);
70     static void
71     placeAboveCallback(wl_client* wlClient, wl_resource* wlResource, wl_resource* wlSibling);
72     static void
73     placeBelowCallback(wl_client* wlClient, wl_resource* wlResource, wl_resource* wlSibling);
74     static void setSyncCallback(wl_client* wlClient, wl_resource* wlResource);
75     static void setDeSyncCallback(wl_client* wlClient, wl_resource* wlResource);
76 
77     static const struct wl_subsurface_interface s_interface;
78 };
79 
80 }
81