1// Copyright (C) 2019 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qwaylandsurface_p.h"
5#include "qwaylanddisplay_p.h"
6#include "qwaylandscreen_p.h"
7
8#include <QtGui/QGuiApplication>
9
10QT_BEGIN_NAMESPACE
11
12namespace QtWaylandClient {
13
14QWaylandSurface::QWaylandSurface(QWaylandDisplay *display)
15 : wl_surface(display->createSurface(this))
16{
17 connect(qApp, &QGuiApplication::screenRemoved, this, &QWaylandSurface::handleScreenRemoved);
18 connect(qApp, &QGuiApplication::screenAdded, this, &QWaylandSurface::screensChanged);
19}
20
21QWaylandSurface::~QWaylandSurface()
22{
23 destroy();
24}
25
26QWaylandScreen *QWaylandSurface::oldestEnteredScreen()
27{
28 for (auto *screen : std::as_const(t&: m_screens)) {
29 // only report valid screens
30 // we can have some ouptuts waiting for xdg output information
31 // that are valid QPlatformScreens, but not valid QScreens
32 if (screen->screen())
33 return screen;
34 }
35 return nullptr;
36}
37
38QWaylandSurface *QWaylandSurface::fromWlSurface(::wl_surface *surface)
39{
40 if (auto *s = QtWayland::wl_surface::fromObject(surface))
41 return static_cast<QWaylandSurface *>(s);
42 return nullptr;
43}
44
45void QWaylandSurface::handleScreenRemoved(QScreen *qScreen)
46{
47 auto *platformScreen = qScreen->handle();
48 if (platformScreen->isPlaceholder())
49 return;
50
51 auto *waylandScreen = static_cast<QWaylandScreen *>(qScreen->handle());
52 if (m_screens.removeOne(t: waylandScreen))
53 emit screensChanged();
54}
55
56void QWaylandSurface::surface_enter(wl_output *output)
57{
58 auto addedScreen = QWaylandScreen::fromWlOutput(output);
59
60 if (!addedScreen)
61 return;
62
63 if (m_screens.contains(t: addedScreen)) {
64 qCWarning(lcQpaWayland)
65 << "Ignoring unexpected wl_surface.enter received for output with id:"
66 << wl_proxy_get_id(reinterpret_cast<wl_proxy *>(output))
67 << "screen name:" << addedScreen->name() << "screen model:" << addedScreen->model()
68 << "This is most likely a bug in the compositor.";
69 return;
70 }
71
72 m_screens.append(t: addedScreen);
73 emit screensChanged();
74}
75
76void QWaylandSurface::surface_leave(wl_output *output)
77{
78 auto *removedScreen = QWaylandScreen::fromWlOutput(output);
79
80 if (!removedScreen)
81 return;
82
83 bool wasRemoved = m_screens.removeOne(t: removedScreen);
84 if (!wasRemoved) {
85 qCWarning(lcQpaWayland)
86 << "Ignoring unexpected wl_surface.leave received for output with id:"
87 << wl_proxy_get_id(reinterpret_cast<wl_proxy *>(output))
88 << "screen name:" << removedScreen->name()
89 << "screen model:" << removedScreen->model()
90 << "This is most likely a bug in the compositor.";
91 return;
92 }
93 emit screensChanged();
94}
95
96void QWaylandSurface::surface_preferred_buffer_scale(int32_t scale)
97{
98 if (m_preferredBufferScale == scale)
99 return;
100 m_preferredBufferScale = scale;
101 Q_EMIT preferredBufferScaleChanged();
102}
103
104void QWaylandSurface::surface_preferred_buffer_transform(uint32_t transform)
105{
106 if (m_preferredBufferTransform == transform)
107 return;
108 m_preferredBufferTransform = static_cast<wl_output_transform>(transform);
109 Q_EMIT preferredBufferTransformChanged();
110}
111
112} // namespace QtWaylandClient
113
114QT_END_NAMESPACE
115
116#include "moc_qwaylandsurface_p.cpp"
117

source code of qtwayland/src/client/qwaylandsurface.cpp