Add xdg_shell_v6 support for Qt clients

Task-number: QTBUG-56174
Change-Id: I6610905d0c9f29be29e812bcac193ea2a7e4f107
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

1 files changed, 246 insertions, 0 deletions

diff --git a/src/client/qwaylandxdgshellv6.cpp b/src/client/qwaylandxdgshellv6.cpp
new file mode 100644
index 000000000..b45498d80
--- /dev/null
+++ b/src/client/qwaylandxdgshellv6.cpp
@@ -0,0 +1,246 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2014 Eurogiciel, author: <philippe.coval@eurogiciel.fr>
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the config.tests of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandxdgshellv6_p.h"
+
+#include "qwaylanddisplay_p.h"
+#include "qwaylandwindow_p.h"
+#include "qwaylandinputdevice_p.h"
+#include "qwaylandscreen_p.h"
+#include "qwaylandabstractdecoration_p.h"
+
+#include <QtCore/QDebug>
+
+QT_BEGIN_NAMESPACE
+
+namespace QtWaylandClient {
+
+QWaylandXdgSurfaceV6::Toplevel::Toplevel(QWaylandXdgSurfaceV6 *xdgSurface)
+    : QtWayland::zxdg_toplevel_v6(xdgSurface->get_toplevel())
+    , m_xdgSurface(xdgSurface)
+{
+}
+
+QWaylandXdgSurfaceV6::Toplevel::~Toplevel()
+{
+    if (isInitialized())
+        destroy();
+}
+
+void QWaylandXdgSurfaceV6::Toplevel::applyConfigure()
+{
+    //TODO: resize, activate etc
+    m_xdgSurface->m_window->configure(0, m_configureState.width, m_configureState.height);
+}
+
+void QWaylandXdgSurfaceV6::Toplevel::zxdg_toplevel_v6_configure(int32_t width, int32_t height, wl_array *states)
+{
+    m_configureState.width = width;
+    m_configureState.height = height;
+
+    uint32_t *state = reinterpret_cast<uint32_t *>(states->data);
+    size_t numStates = states->size / sizeof(uint32_t);
+    m_configureState.states.reserve(numStates);
+    m_configureState.states.clear();
+
+    for (size_t i = 0; i < numStates; i++)
+        m_configureState.states << state[i];
+}
+
+void QWaylandXdgSurfaceV6::Toplevel::zxdg_toplevel_v6_close()
+{
+}
+
+QWaylandXdgSurfaceV6::Popup::Popup(QWaylandXdgSurfaceV6 *xdgSurface, QWaylandXdgSurfaceV6 *parent,
+                                   QtWayland::zxdg_positioner_v6 *positioner)
+    : zxdg_popup_v6(xdgSurface->get_popup(parent->object(), positioner->object()))
+    , m_xdgSurface(xdgSurface)
+{
+}
+
+QWaylandXdgSurfaceV6::Popup::~Popup()
+{
+    if (isInitialized())
+        destroy();
+}
+
+void QWaylandXdgSurfaceV6::Popup::applyConfigure()
+{
+
+}
+
+void QWaylandXdgSurfaceV6::Popup::zxdg_popup_v6_popup_done()
+{
+    m_xdgSurface->m_window->window()->close();
+}
+
+QWaylandXdgSurfaceV6::QWaylandXdgSurfaceV6(QWaylandXdgShellV6 *shell, ::zxdg_surface_v6 *surface, QWaylandWindow *window)
+                    : QWaylandShellSurface(window)
+                    , zxdg_surface_v6(surface)
+                    , m_shell(shell)
+                    , m_window(window)
+                    , m_toplevel(nullptr)
+                    , m_popup(nullptr)
+                    , m_configured(false)
+{
+}
+
+QWaylandXdgSurfaceV6::~QWaylandXdgSurfaceV6()
+{
+    if (m_popup)
+        zxdg_popup_v6_destroy(m_popup->object());
+    destroy();
+}
+
+void QWaylandXdgSurfaceV6::resize(QWaylandInputDevice *inputDevice, zxdg_toplevel_v6_resize_edge edges)
+{
+    Q_ASSERT(m_toplevel && m_toplevel->isInitialized());
+    m_toplevel->resize(inputDevice->wl_seat(), inputDevice->serial(), edges);
+}
+
+void QWaylandXdgSurfaceV6::resize(QWaylandInputDevice *inputDevice, enum wl_shell_surface_resize edges)
+{
+    auto xdgEdges = reinterpret_cast<enum zxdg_toplevel_v6_resize_edge const * const>(&edges);
+    resize(inputDevice, *xdgEdges);
+}
+
+
+void QWaylandXdgSurfaceV6::move(QWaylandInputDevice *inputDevice)
+{
+    Q_ASSERT(m_toplevel && m_toplevel->isInitialized());
+    m_toplevel->move(inputDevice->wl_seat(), inputDevice->serial());
+}
+
+void QWaylandXdgSurfaceV6::setTitle(const QString &title)
+{
+    if (m_toplevel)
+        m_toplevel->set_title(title);
+}
+
+void QWaylandXdgSurfaceV6::setAppId(const QString &appId)
+{
+    if (m_toplevel)
+        m_toplevel->set_app_id(appId);
+}
+
+void QWaylandXdgSurfaceV6::setType(Qt::WindowType type, QWaylandWindow *transientParent)
+{
+    if (type == Qt::Popup && transientParent) {
+        setPopup(transientParent, m_window->display()->lastInputDevice(), m_window->display()->lastInputSerial());
+    } else {
+        setToplevel();
+        if (transientParent) {
+            auto parentXdgSurface = static_cast<QWaylandXdgSurfaceV6 *>(transientParent->shellSurface());
+            m_toplevel->set_parent(parentXdgSurface->m_toplevel->object());
+        }
+    }
+}
+
+bool QWaylandXdgSurfaceV6::handleExpose(const QRegion &region)
+{
+    if (!m_configured && !region.isEmpty()) {
+        m_exposeRegion = region;
+        return true;
+    }
+    return false;
+}
+
+void QWaylandXdgSurfaceV6::setToplevel()
+{
+    Q_ASSERT(!m_toplevel && !m_popup);
+    m_toplevel = new Toplevel(this);
+}
+
+void QWaylandXdgSurfaceV6::setPopup(QWaylandWindow *parent, QWaylandInputDevice *device, int serial)
+{
+    Q_ASSERT(!m_toplevel && !m_popup);
+
+    auto parentXdgSurface = static_cast<QWaylandXdgSurfaceV6 *>(parent->shellSurface());
+    auto positioner = new QtWayland::zxdg_positioner_v6(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::zxdg_positioner_v6::anchor_top | QtWayland::zxdg_positioner_v6::anchor_left);
+    positioner->set_gravity(QtWayland::zxdg_positioner_v6::gravity_bottom | QtWayland::zxdg_positioner_v6::gravity_right);
+    m_popup = new Popup(this, parentXdgSurface, positioner);
+    positioner->destroy();
+    delete positioner;
+    m_popup->grab(device->wl_seat(), serial);
+}
+
+void QWaylandXdgSurfaceV6::zxdg_surface_v6_configure(uint32_t serial)
+{
+    m_configured = true;
+    if (m_toplevel)
+        m_toplevel->applyConfigure();
+    else if (m_popup)
+        m_popup->applyConfigure();
+
+    if (!m_exposeRegion.isEmpty()) {
+        QWindowSystemInterface::handleExposeEvent(m_window->window(), m_exposeRegion);
+        m_exposeRegion = QRegion();
+    }
+    ack_configure(serial);
+}
+
+
+
+QWaylandXdgShellV6::QWaylandXdgShellV6(struct ::wl_registry *registry, uint32_t id, uint32_t availableVersion)
+                  : QtWayland::zxdg_shell_v6(registry, id, qMin(availableVersion, 1u))
+{
+}
+
+QWaylandXdgShellV6::~QWaylandXdgShellV6()
+{
+    destroy();
+}
+
+QWaylandXdgSurfaceV6 *QWaylandXdgShellV6::getXdgSurface(QWaylandWindow *window)
+{
+    return new QWaylandXdgSurfaceV6(this, get_xdg_surface(window->object()), window);
+}
+
+void QWaylandXdgShellV6::zxdg_shell_v6_ping(uint32_t serial)
+{
+    pong(serial);
+}
+
+}
+
+QT_END_NAMESPACE