summaryrefslogtreecommitdiffstats
path: root/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
blob: 9787fa5eba4523fa54e3b3d83506d0a4e874a72e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Copyright (C) 2017 Eurogiciel, author: <philippe.coval@eurogiciel.fr>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the config.tests of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qwaylandxdgshell_p.h"

#include <QtWaylandClient/private/qwaylanddisplay_p.h>
#include <QtWaylandClient/private/qwaylandwindow_p.h>
#include <QtWaylandClient/private/qwaylandinputdevice_p.h>
#include <QtWaylandClient/private/qwaylandscreen_p.h>
#include <QtWaylandClient/private/qwaylandabstractdecoration_p.h>

QT_BEGIN_NAMESPACE

namespace QtWaylandClient {

QWaylandXdgSurface::Toplevel::Toplevel(QWaylandXdgSurface *xdgSurface)
    : QtWayland::xdg_toplevel(xdgSurface->get_toplevel())
    , m_xdgSurface(xdgSurface)
{
    if (auto *decorationManager = m_xdgSurface->m_shell->decorationManager())
        m_decoration = decorationManager->createToplevelDecoration(object());

    QWindow *window = xdgSurface->window()->window();
    requestWindowStates(window->windowStates());
    requestWindowFlags(window->flags());
}

QWaylandXdgSurface::Toplevel::~Toplevel()
{
    if (m_applied.states & Qt::WindowActive) {
        QWaylandWindow *window = m_xdgSurface->window();
        window->display()->handleWindowDeactivated(window);
    }

    // The protocol spec requires that the decoration object is deleted before xdg_toplevel.
    delete m_decoration;
    m_decoration = nullptr;

    if (isInitialized())
        destroy();
}

void QWaylandXdgSurface::Toplevel::applyConfigure()
{
    if (!(m_applied.states & (Qt::WindowMaximized|Qt::WindowFullScreen)))
        m_normalSize = m_xdgSurface->m_window->window()->frameGeometry().size();

    if ((m_pending.states & Qt::WindowActive) && !(m_applied.states & Qt::WindowActive))
        m_xdgSurface->m_window->display()->handleWindowActivated(m_xdgSurface->m_window);

    if (!(m_pending.states & Qt::WindowActive) && (m_applied.states & Qt::WindowActive))
        m_xdgSurface->m_window->display()->handleWindowDeactivated(m_xdgSurface->m_window);

    // TODO: none of the other plugins send WindowActive either, but is it on purpose?
    Qt::WindowStates statesWithoutActive = m_pending.states & ~Qt::WindowActive;

    m_xdgSurface->m_window->handleWindowStatesChanged(statesWithoutActive);

    if (m_pending.size.isEmpty()) {
        // An empty size in the configure means it's up to the client to choose the size
        bool normalPending = !(m_pending.states & (Qt::WindowMaximized|Qt::WindowFullScreen));
        if (normalPending && !m_normalSize.isEmpty())
            m_xdgSurface->m_window->resizeFromApplyConfigure(m_normalSize);
    } else {
        m_xdgSurface->m_window->resizeFromApplyConfigure(m_pending.size);
    }

    QSize windowGeometrySize = m_xdgSurface->m_window->window()->frameGeometry().size();
    m_xdgSurface->set_window_geometry(0, 0, windowGeometrySize.width(), windowGeometrySize.height());
    m_applied = m_pending;
    qCDebug(lcQpaWayland) << "Applied pending xdg_toplevel configure event:" << m_applied.size << m_applied.states;
}

bool QWaylandXdgSurface::Toplevel::wantsDecorations()
{
    if (m_decoration && m_decoration->pending() == QWaylandXdgToplevelDecorationV1::mode_server_side)
        return false;

    return !(m_pending.states & Qt::WindowFullScreen);
}

void QWaylandXdgSurface::Toplevel::xdg_toplevel_configure(int32_t width, int32_t height, wl_array *states)
{
    m_pending.size = QSize(width, height);

    auto *xdgStates = static_cast<uint32_t *>(states->data);
    size_t numStates = states->size / sizeof(uint32_t);

    m_pending.states = Qt::WindowNoState;

    for (size_t i = 0; i < numStates; i++) {
        switch (xdgStates[i]) {
        case XDG_TOPLEVEL_STATE_ACTIVATED:
            m_pending.states |= Qt::WindowActive;
            break;
        case XDG_TOPLEVEL_STATE_MAXIMIZED:
            m_pending.states |= Qt::WindowMaximized;
            break;
        case XDG_TOPLEVEL_STATE_FULLSCREEN:
            m_pending.states |= Qt::WindowFullScreen;
            break;
        default:
            break;
        }
    }
    qCDebug(lcQpaWayland) << "Received xdg_toplevel.configure with" << m_pending.size
                          << "and" << m_pending.states;
}

void QWaylandXdgSurface::Toplevel::xdg_toplevel_close()
{
    m_xdgSurface->m_window->window()->close();
}

void QWaylandXdgSurface::Toplevel::requestWindowFlags(Qt::WindowFlags flags)
{
    if (m_decoration) {
        if (flags & Qt::FramelessWindowHint)
            m_decoration->requestMode(QWaylandXdgToplevelDecorationV1::mode_client_side);
        else
            m_decoration->unsetMode();
    }
}

void QWaylandXdgSurface::Toplevel::requestWindowStates(Qt::WindowStates states)
{
    // Re-send what's different from the applied state
    Qt::WindowStates changedStates = m_applied.states ^ states;

    if (changedStates & Qt::WindowMaximized) {
        if (states & Qt::WindowMaximized)
            set_maximized();
        else
            unset_maximized();
    }

    if (changedStates & Qt::WindowFullScreen) {
        if (states & Qt::WindowFullScreen)
            set_fullscreen(nullptr);
        else
            unset_fullscreen();
    }

    // Minimized state is not reported by the protocol, so always send it
    if (states & Qt::WindowMinimized) {
        set_minimized();
        m_xdgSurface->window()->handleWindowStatesChanged(states & ~Qt::WindowMinimized);
    }
}

QWaylandXdgSurface::Popup::Popup(QWaylandXdgSurface *xdgSurface, QWaylandXdgSurface *parent,
                                 QtWayland::xdg_positioner *positioner)
    : xdg_popup(xdgSurface->get_popup(parent->object(), positioner->object()))
    , m_xdgSurface(xdgSurface)
    , m_parent(parent)
{
}

QWaylandXdgSurface::Popup::~Popup()
{
    if (isInitialized())
        destroy();

    if (m_grabbing) {
        auto *shell = m_xdgSurface->m_shell;
        Q_ASSERT(shell->m_topmostPopup == this);
        shell->m_topmostPopup = m_parent->m_popup;
    }
}

void QWaylandXdgSurface::Popup::grab(QWaylandInputDevice *seat, uint serial)
{
    m_xdgSurface->m_shell->m_topmostPopup = this;
    xdg_popup::grab(seat->wl_seat(), serial);
    m_grabbing = true;
}

void QWaylandXdgSurface::Popup::xdg_popup_popup_done()
{
    m_xdgSurface->m_window->window()->close();
}

QWaylandXdgSurface::QWaylandXdgSurface(QWaylandXdgShell *shell, ::xdg_surface *surface, QWaylandWindow *window)
    : QWaylandShellSurface(window)
    , xdg_surface(surface)
    , m_shell(shell)
    , m_window(window)
{
    QWaylandDisplay *display = window->display();
    Qt::WindowType type = window->window()->type();
    auto *transientParent = window->transientParent();

    if (type == Qt::ToolTip && transientParent) {
        setPopup(transientParent);
    } else if (type == Qt::Popup && transientParent && display->lastInputDevice()) {
        setGrabPopup(transientParent, display->lastInputDevice(), display->lastInputSerial());
    } else {
        setToplevel();
        if (transientParent) {
            auto parentXdgSurface = static_cast<QWaylandXdgSurface *>(transientParent->shellSurface());
            if (parentXdgSurface)
                m_toplevel->set_parent(parentXdgSurface->m_toplevel->object());
        }
    }
}

QWaylandXdgSurface::~QWaylandXdgSurface()
{
    if (m_toplevel) {
        delete m_toplevel;
        m_toplevel = nullptr;
    }
    if (m_popup) {
        delete m_popup;
        m_popup = nullptr;
    }
    destroy();
}

void QWaylandXdgSurface::resize(QWaylandInputDevice *inputDevice, xdg_toplevel_resize_edge edges)
{
    Q_ASSERT(m_toplevel && m_toplevel->isInitialized());
    m_toplevel->resize(inputDevice->wl_seat(), inputDevice->serial(), edges);
}

void QWaylandXdgSurface::resize(QWaylandInputDevice *inputDevice, enum wl_shell_surface_resize edges)
{
    auto xdgEdges = reinterpret_cast<enum xdg_toplevel_resize_edge const *>(&edges);
    resize(inputDevice, *xdgEdges);
}


bool QWaylandXdgSurface::move(QWaylandInputDevice *inputDevice)
{
    if (m_toplevel && m_toplevel->isInitialized()) {
        m_toplevel->move(inputDevice->wl_seat(), inputDevice->serial());
        return true;
    }
    return false;
}

void QWaylandXdgSurface::setTitle(const QString &title)
{
    if (m_toplevel)
        m_toplevel->set_title(title);
}

void QWaylandXdgSurface::setAppId(const QString &appId)
{
    if (m_toplevel)
        m_toplevel->set_app_id(appId);
}

void QWaylandXdgSurface::setWindowFlags(Qt::WindowFlags flags)
{
    if (m_toplevel)
        m_toplevel->requestWindowFlags(flags);
}

bool QWaylandXdgSurface::isExposed() const
{
    return m_configured || m_pendingConfigureSerial;
}

bool QWaylandXdgSurface::handleExpose(const QRegion &region)
{
    if (!isExposed() && !region.isEmpty()) {
        m_exposeRegion = region;
        return true;
    }
    return false;
}

void QWaylandXdgSurface::applyConfigure()
{
    Q_ASSERT(m_pendingConfigureSerial != 0);

    if (m_toplevel)
        m_toplevel->applyConfigure();

    m_configured = true;
    ack_configure(m_pendingConfigureSerial);

    m_pendingConfigureSerial = 0;
}

bool QWaylandXdgSurface::wantsDecorations() const
{
    return m_toplevel && m_toplevel->wantsDecorations();
}

void QWaylandXdgSurface::requestWindowStates(Qt::WindowStates states)
{
    if (m_toplevel)
        m_toplevel->requestWindowStates(states);
    else
        qCWarning(lcQpaWayland) << "Non-toplevel surfaces can't request window states";
}

void QWaylandXdgSurface::setToplevel()
{
    Q_ASSERT(!m_toplevel && !m_popup);
    m_toplevel = new Toplevel(this);
}

void QWaylandXdgSurface::setPopup(QWaylandWindow *parent)
{
    Q_ASSERT(!m_toplevel && !m_popup);

    auto parentXdgSurface = static_cast<QWaylandXdgSurface *>(parent->shellSurface());

    auto positioner = new QtWayland::xdg_positioner(m_shell->create_positioner());
    // set_popup expects a position relative to the parent
    QPoint transientPos = m_window->geometry().topLeft(); // this is absolute
    transientPos -= parent->geometry().topLeft();
    if (parent->decoration()) {
        transientPos.setX(transientPos.x() + parent->decoration()->margins().left());
        transientPos.setY(transientPos.y() + parent->decoration()->margins().top());
    }
    positioner->set_anchor_rect(transientPos.x(), transientPos.y(), 1, 1);
    positioner->set_anchor(QtWayland::xdg_positioner::anchor_top_left);
    positioner->set_gravity(QtWayland::xdg_positioner::gravity_bottom_right);
    positioner->set_size(m_window->geometry().width(), m_window->geometry().height());
    m_popup = new Popup(this, parentXdgSurface, positioner);
    positioner->destroy();
    delete positioner;
}

void QWaylandXdgSurface::setGrabPopup(QWaylandWindow *parent, QWaylandInputDevice *device, int serial)
{
    auto parentXdgSurface = static_cast<QWaylandXdgSurface *>(parent->shellSurface());
    auto *top = m_shell->m_topmostPopup;

    if (top && top->m_xdgSurface != parentXdgSurface) {
        qCWarning(lcQpaWayland) << "setGrabPopup called for a surface that was not the topmost popup, positions might be off.";
        parent = top->m_xdgSurface->m_window;
    }
    setPopup(parent);
    m_popup->grab(device, serial);
}

void QWaylandXdgSurface::xdg_surface_configure(uint32_t serial)
{
    m_pendingConfigureSerial = serial;
    if (!m_configured) {
        // We have to do the initial applyConfigure() immediately, since that is the expose.
        applyConfigure();
    } else {
        // Later configures are probably resizes, so we have to queue them up for a time when we
        // are not painting to the window.
        m_window->applyConfigureWhenPossible();
    }

    if (!m_exposeRegion.isEmpty()) {
        m_window->handleExpose(m_exposeRegion);
        m_exposeRegion = QRegion();
    }
}

QWaylandXdgShell::QWaylandXdgShell(QWaylandDisplay *display, uint32_t id, uint32_t availableVersion)
    : QtWayland::xdg_wm_base(display->wl_registry(), id, qMin(availableVersion, 1u))
    , m_display(display)
{
    display->addRegistryListener(&QWaylandXdgShell::handleRegistryGlobal, this);
}

QWaylandXdgShell::~QWaylandXdgShell()
{
    m_display->removeListener(&QWaylandXdgShell::handleRegistryGlobal, this);
    destroy();
}

QWaylandXdgSurface *QWaylandXdgShell::getXdgSurface(QWaylandWindow *window)
{
    return new QWaylandXdgSurface(this, get_xdg_surface(window->object()), window);
}

void QWaylandXdgShell::xdg_wm_base_ping(uint32_t serial)
{
    pong(serial);
}

void QWaylandXdgShell::handleRegistryGlobal(void *data, wl_registry *registry, uint id,
                                            const QString &interface, uint version)
{
    QWaylandXdgShell *xdgShell = static_cast<QWaylandXdgShell *>(data);
    if (interface == QLatin1String(QWaylandXdgDecorationManagerV1::interface()->name))
        xdgShell->m_xdgDecorationManager.reset(new QWaylandXdgDecorationManagerV1(registry, id, version));
}

}

QT_END_NAMESPACE