qwaylandwlshell.cpp

Go to the documentation of this file.

// Copyright (C) 2017 The Qt Company Ltd.
// Copyright (C) 2017 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#include "qwaylandwlshell.h"
#include "qwaylandwlshell_p.h"
 
#if QT_CONFIG(wayland_compositor_quick)
#include "qwaylandwlshellintegration_p.h"
#endif
#include <QtWaylandCompositor/private/qwaylandutils_p.h>
 
#include <QtWaylandCompositor/QWaylandCompositor>
#include <QtWaylandCompositor/QWaylandView>
#include <QtWaylandCompositor/QWaylandOutput>
#include <QtWaylandCompositor/QWaylandClient>
 
#include <QtCore/QObject>
#include <QtCore/QDebug>
 
QT_BEGIN_NAMESPACE
 
QWaylandSurfaceRole QWaylandWlShellSurfacePrivate::s_role("wl_shell_surface");
 
QWaylandWlShellPrivate::QWaylandWlShellPrivate()
{
}
 
void QWaylandWlShellPrivate::shell_get_shell_surface(Resource *resource, uint32_t id, struct ::wl_resource *surface_res)
{
    Q_Q(QWaylandWlShell);
    QWaylandSurface *surface = QWaylandSurface::fromResource(surface_res);
 
    QWaylandResource shellSurfaceResource(wl_resource_create(resource->client(), &wl_shell_surface_interface,
                                                             wl_resource_get_version(resource->handle), id));
 
    // XXX FIXME
    // The role concept was formalized in wayland 1.7, so that release adds one error
    // code for each interface that implements a role, and we are supposed to pass here
    // the newly constructed resource and the correct error code so that if setting the
    // role fails, a proper error can be sent to the client.
    // However we're still using wayland 1.4, which doesn't have interface specific role
    // errors, so the best we can do is to use wl_display's object_id error.
    wl_resource *displayRes = wl_client_get_object(resource->client(), 1);
    if (!surface->setRole(QWaylandWlShellSurface::role(), displayRes, WL_DISPLAY_ERROR_INVALID_OBJECT))
        return;
 
    emit q->wlShellSurfaceRequested(surface, shellSurfaceResource);
 
    QWaylandWlShellSurface *shellSurface = QWaylandWlShellSurface::fromResource(shellSurfaceResource.resource());
    if (!shellSurface) {
        // A QWaylandWlShellSurface was not created in response to the wlShellSurfaceRequested
        // signal, so we create one as fallback here instead.
        shellSurface = new QWaylandWlShellSurface(q, surface, shellSurfaceResource);
    }
 
    m_shellSurfaces.append(shellSurface);
    emit q->wlShellSurfaceCreated(shellSurface);
}
 
void QWaylandWlShellPrivate::unregisterShellSurface(QWaylandWlShellSurface *shellSurface)
{
    if (!m_shellSurfaces.removeOne(shellSurface))
        qWarning("Unexpected state. Can't find registered shell surface.");
}
 
QWaylandWlShellSurfacePrivate::QWaylandWlShellSurfacePrivate()
{
}
 
QWaylandWlShellSurfacePrivate::~QWaylandWlShellSurfacePrivate()
{
}
 
void QWaylandWlShellSurfacePrivate::ping(uint32_t serial)
{
    m_pings.insert(serial);
    send_ping(serial);
}
 
void QWaylandWlShellSurfacePrivate::setWindowType(Qt::WindowType windowType)
{
    if (m_windowType == windowType)
        return;
    m_windowType = windowType;
 
    Q_Q(QWaylandWlShellSurface);
    emit q->windowTypeChanged();
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_destroy_resource(Resource *)
{
    Q_Q(QWaylandWlShellSurface);
 
    delete q;
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_move(Resource *resource,
                struct wl_resource *input_device_super,
                uint32_t serial)
{
    Q_UNUSED(resource);
    Q_UNUSED(serial);
 
    Q_Q(QWaylandWlShellSurface);
    QWaylandSeat *input_device = QWaylandSeat::fromSeatResource(input_device_super);
    emit q->startMove(input_device);
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_resize(Resource *resource,
                  struct wl_resource *input_device_super,
                  uint32_t serial,
                  uint32_t edges)
{
    Q_UNUSED(resource);
    Q_UNUSED(serial);
    Q_Q(QWaylandWlShellSurface);
 
    QWaylandSeat *input_device = QWaylandSeat::fromSeatResource(input_device_super);
    emit q->startResize(input_device, QWaylandWlShellSurface::ResizeEdge(edges));
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_toplevel(Resource *resource)
{
    Q_UNUSED(resource);
    Q_Q(QWaylandWlShellSurface);
    setWindowType(Qt::WindowType::Window);
    emit q->setDefaultToplevel();
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_transient(Resource *resource,
                      struct wl_resource *parent_surface_resource,
                      int x,
                      int y,
                      uint32_t flags)
{
 
    Q_UNUSED(resource);
    Q_Q(QWaylandWlShellSurface);
    QWaylandSurface *parent_surface = QWaylandSurface::fromResource(parent_surface_resource);
    setWindowType(Qt::WindowType::SubWindow);
    emit q->setTransient(parent_surface, QPoint(x,y), flags & WL_SHELL_SURFACE_TRANSIENT_INACTIVE);
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_fullscreen(Resource *resource,
                       uint32_t method,
                       uint32_t framerate,
                       struct wl_resource *output_resource)
{
    Q_UNUSED(resource);
    Q_UNUSED(method);
    Q_UNUSED(framerate);
    Q_Q(QWaylandWlShellSurface);
    QWaylandOutput *output = output_resource
            ? QWaylandOutput::fromResource(output_resource)
            : nullptr;
    setWindowType(Qt::WindowType::Window);
    emit q->setFullScreen(QWaylandWlShellSurface::FullScreenMethod(method), framerate, output);
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_popup(Resource *resource, wl_resource *input_device, uint32_t serial, wl_resource *parent, int32_t x, int32_t y, uint32_t flags)
{
    Q_UNUSED(resource);
    Q_UNUSED(serial);
    Q_UNUSED(flags);
    Q_Q(QWaylandWlShellSurface);
    QWaylandSeat *input = QWaylandSeat::fromSeatResource(input_device);
    QWaylandSurface *parentSurface = QWaylandSurface::fromResource(parent);
    setWindowType(Qt::WindowType::Popup);
    emit q->setPopup(input, parentSurface, QPoint(x,y));
 
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_maximized(Resource *resource,
                       struct wl_resource *output_resource)
{
    Q_UNUSED(resource);
    Q_Q(QWaylandWlShellSurface);
    QWaylandOutput *output = output_resource
            ? QWaylandOutput::fromResource(output_resource)
            : nullptr;
    setWindowType(Qt::WindowType::Window);
    emit q->setMaximized(output);
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_pong(Resource *resource,
                        uint32_t serial)
{
    Q_UNUSED(resource);
    Q_Q(QWaylandWlShellSurface);
    if (m_pings.remove(serial))
        emit q->pong();
    else
        qWarning("Received an unexpected pong!");
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_title(Resource *resource,
                             const QString &title)
{
    Q_UNUSED(resource);
    if (title == m_title)
        return;
    Q_Q(QWaylandWlShellSurface);
    m_title = title;
    emit q->titleChanged();
}
 
void QWaylandWlShellSurfacePrivate::shell_surface_set_class(Resource *resource,
                             const QString &className)
{
    Q_UNUSED(resource);
    if (className == m_className)
        return;
    Q_Q(QWaylandWlShellSurface);
    m_className = className;
    emit q->classNameChanged();
}
 
QWaylandWlShell::QWaylandWlShell()
    : QWaylandShellTemplate<QWaylandWlShell>(*new QWaylandWlShellPrivate())
{ }
 
QWaylandWlShell::QWaylandWlShell(QWaylandCompositor *compositor)
    : QWaylandShellTemplate<QWaylandWlShell>(compositor, *new QWaylandWlShellPrivate())
{ }
 
 
void QWaylandWlShell::initialize()
{
    Q_D(QWaylandWlShell);
    QWaylandShellTemplate::initialize();
    QWaylandCompositor *compositor = qobject_cast<QWaylandCompositor *>(extensionContainer());
    if (!compositor) {
        qWarning() << "Failed to find QWaylandCompositor when initializing QWaylandWlShell";
        return;
    }
    d->init(compositor->display(), 1);
}
 
QList<QWaylandWlShellSurface *> QWaylandWlShell::shellSurfaces() const
{
    Q_D(const QWaylandWlShell);
    return d->m_shellSurfaces;
}
 
QList<QWaylandWlShellSurface *> QWaylandWlShell::shellSurfacesForClient(QWaylandClient *client) const
{
    Q_D(const QWaylandWlShell);
    QList<QWaylandWlShellSurface *> surfsForClient;
    for (QWaylandWlShellSurface *shellSurface : d->m_shellSurfaces) {
        if (shellSurface->surface() && shellSurface->surface()->client() == client)
            surfsForClient.append(shellSurface);
    }
    return surfsForClient;
}
 
QList<QWaylandWlShellSurface *> QWaylandWlShell::mappedPopups() const
{
    Q_D(const QWaylandWlShell);
    QList<QWaylandWlShellSurface *> popupSurfaces;
    for (QWaylandWlShellSurface *shellSurface : d->m_shellSurfaces) {
        if (shellSurface->windowType() == Qt::WindowType::Popup
                && shellSurface->surface() && shellSurface->surface()->hasContent()) {
            popupSurfaces.append(shellSurface);
        }
    }
    return popupSurfaces;
}
 
QWaylandClient *QWaylandWlShell::popupClient() const
{
    Q_D(const QWaylandWlShell);
    for (QWaylandWlShellSurface *shellSurface : d->m_shellSurfaces) {
        if (shellSurface->windowType() == Qt::WindowType::Popup
                && shellSurface->surface() && shellSurface->surface()->hasContent()) {
            return shellSurface->surface()->client();
        }
    }
    return nullptr;
}
 
void QWaylandWlShell::closeAllPopups()
{
    const auto mapped = mappedPopups();
    for (QWaylandWlShellSurface *shellSurface : mapped)
        shellSurface->sendPopupDone();
}
 
const struct wl_interface *QWaylandWlShell::interface()
{
    return QWaylandWlShellPrivate::interface();
}
 
QByteArray QWaylandWlShell::interfaceName()
{
    return QWaylandWlShellPrivate::interfaceName();
}
 
QWaylandWlShellSurface::QWaylandWlShellSurface()
    : QWaylandShellSurfaceTemplate<QWaylandWlShellSurface>(*new QWaylandWlShellSurfacePrivate)
{
}
 
QWaylandWlShellSurface::QWaylandWlShellSurface(QWaylandWlShell *shell, QWaylandSurface *surface, const QWaylandResource &res)
    : QWaylandShellSurfaceTemplate<QWaylandWlShellSurface>(*new QWaylandWlShellSurfacePrivate)
{
    initialize(shell, surface, res);
}
 
QWaylandWlShellSurface::~QWaylandWlShellSurface()
{
    Q_D(QWaylandWlShellSurface);
    if (d->m_shell)
        QWaylandWlShellPrivate::get(d->m_shell)->unregisterShellSurface(this);
}
 
void QWaylandWlShellSurface::initialize(QWaylandWlShell *shell, QWaylandSurface *surface, const QWaylandResource &resource)
{
    Q_D(QWaylandWlShellSurface);
    d->m_shell = shell;
    d->m_surface = surface;
    d->init(resource.resource());
    setExtensionContainer(surface);
    emit surfaceChanged();
    emit shellChanged();
    QWaylandCompositorExtension::initialize();
}
 
void QWaylandWlShellSurface::initialize()
{
    QWaylandCompositorExtension::initialize();
}
 
const struct wl_interface *QWaylandWlShellSurface::interface()
{
    return QWaylandWlShellSurfacePrivate::interface();
}
 
QByteArray QWaylandWlShellSurface::interfaceName()
{
    return QWaylandWlShellSurfacePrivate::interfaceName();
}
 
QSize QWaylandWlShellSurface::sizeForResize(const QSizeF &size, const QPointF &delta, QWaylandWlShellSurface::ResizeEdge edge)
{
    qreal width = size.width();
    qreal height = size.height();
    if (edge & LeftEdge)
        width -= delta.x();
    else if (edge & RightEdge)
        width += delta.x();
 
    if (edge & TopEdge)
        height -= delta.y();
    else if (edge & BottomEdge)
        height += delta.y();
 
    QSizeF newSize(qMax(width, 1.0), qMax(height, 1.0));
    return newSize.toSize();
}
 
void QWaylandWlShellSurface::sendConfigure(const QSize &size, ResizeEdge edges)
{
    Q_D(QWaylandWlShellSurface);
    if (!size.isValid()) {
        qWarning() << "Can't configure wl_shell_surface with an invalid size" << size;
        return;
    }
    d->send_configure(edges, size.width(), size.height());
}
 
void QWaylandWlShellSurface::sendPopupDone()
{
    Q_D(QWaylandWlShellSurface);
    d->send_popup_done();
}
 
#if QT_CONFIG(wayland_compositor_quick)
QWaylandQuickShellIntegration *QWaylandWlShellSurface::createIntegration(QWaylandQuickShellSurfaceItem *item)
{
    return new QtWayland::WlShellIntegration(item);
}
#endif
 
QWaylandSurface *QWaylandWlShellSurface::surface() const
{
    Q_D(const QWaylandWlShellSurface);
    return d->m_surface;
}
 
QWaylandWlShell *QWaylandWlShellSurface::shell() const
{
    Q_D(const QWaylandWlShellSurface);
    return d->m_shell;
}
 
Qt::WindowType QWaylandWlShellSurface::windowType() const
{
    Q_D(const QWaylandWlShellSurface);
    return d->m_windowType;
}
 
QString QWaylandWlShellSurface::title() const
{
    Q_D(const QWaylandWlShellSurface);
    return d->m_title;
}
 
QString QWaylandWlShellSurface::className() const
{
    Q_D(const QWaylandWlShellSurface);
    return d->m_className;
}
 
QWaylandSurfaceRole *QWaylandWlShellSurface::role()
{
    return &QWaylandWlShellSurfacePrivate::s_role;
}
 
void QWaylandWlShellSurface::ping()
{
    Q_D(QWaylandWlShellSurface);
    uint32_t serial = d->m_surface->compositor()->nextSerial();
    d->ping(serial);
}
 
QWaylandWlShellSurface *QWaylandWlShellSurface::fromResource(wl_resource *resource)
{
    if (auto p = QtWayland::fromResource<QWaylandWlShellSurfacePrivate *>(resource))
        return p->q_func();
    return nullptr;
}
 
QT_END_NAMESPACE
 
#include "moc_qwaylandwlshell.cpp"