Source code
Revision control
Copy as Markdown
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "customextension.h"
#include <QtGui/QGuiApplication>
#include <QtGui/QWindow>
#include <QtGui/QPlatformSurfaceEvent>
#include <QtGui/qpa/qplatformnativeinterface.h>
#include <QDebug>
QT_BEGIN_NAMESPACE
CustomExtension::CustomExtension()
: QWaylandClientExtensionTemplate(/* Supported protocol version */ 1 )
{
connect(this, &CustomExtension::activeChanged, this, &CustomExtension::handleExtensionActive);
}
static inline struct ::wl_surface *getWlSurface(QWindow *window)
{
void *surf = QGuiApplication::platformNativeInterface()->nativeResourceForWindow("surface", window);
return static_cast<struct ::wl_surface *>(surf);
}
QWindow *CustomExtension::windowForSurface(struct ::wl_surface *surface)
{
for (QWindow *w : std::as_const(m_windows)) {
if (getWlSurface(w) == surface)
return w;
}
return nullptr;
}
bool CustomExtension::eventFilter(QObject *object, QEvent *event)
{
if (event->type() == QEvent::Expose) {
QWindow *window = qobject_cast<QWindow*>(object);
Q_ASSERT(window);
if (window->isExposed()) {
window->removeEventFilter(this);
QtWayland::qt_example_extension::register_surface(getWlSurface(window));
}
}
return false;
}
void CustomExtension::sendWindowRegistration(QWindow *window)
{
if (window->handle())
QtWayland::qt_example_extension::register_surface(getWlSurface(window));
else
window->installEventFilter(this); // register when created
}
void CustomExtension::registerWindow(QWindow *window)
{
m_windows << window;
if (isActive()) {
m_activated = true;
sendWindowRegistration(window);
}
}
CustomExtensionObject *CustomExtension::createCustomObject(const QString &color, const QString &text)
{
auto *obj = create_local_object(color, text);
return new CustomExtensionObject(obj, text);
}
//! [sendBounce]
void CustomExtension::sendBounce(QWindow *window, uint ms)
{
QtWayland::qt_example_extension::bounce(getWlSurface(window), ms);
}
//! [sendBounce]
void CustomExtension::sendSpin(QWindow *window, uint ms)
{
QtWayland::qt_example_extension::spin(getWlSurface(window), ms);
}
void CustomExtension::handleExtensionActive()
{
if (isActive() && !m_activated) {
m_activated = true;
for (QWindow *w : std::as_const(m_windows))
sendWindowRegistration(w);
}
}
void CustomExtension::example_extension_close(wl_surface *surface)
{
QWindow *w = windowForSurface(surface);
if (w)
w->close();
}
void CustomExtension::example_extension_set_font_size(wl_surface *surface, uint32_t pixel_size)
{
emit fontSize(windowForSurface(surface), pixel_size);
}
void CustomExtension::example_extension_set_window_decoration(uint32_t state)
{
bool shown = state;
for (QWindow *w : std::as_const(m_windows)) {
Qt::WindowFlags f = w->flags();
if (shown)
f &= ~Qt::FramelessWindowHint;
else
f |= Qt::FramelessWindowHint;
w->setFlags(f);
}
}
CustomExtensionObject::CustomExtensionObject(struct ::qt_example_local_object *wl_object, const QString &text)
: QWaylandClientExtensionTemplate<CustomExtensionObject>(1)
, QtWayland::qt_example_local_object(wl_object)
, m_text(text)
{
}
void CustomExtensionObject::example_local_object_clicked()
{
qDebug() << "Object clicked:" << m_text;
emit clicked();
}
void CustomExtensionObject::setText(const QString &text)
{
m_text = text;
set_text(text);
}
QT_END_NAMESPACE