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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtCore/QEvent>
#include <QtCore/QObject>
#include <QtGui/qwindow.h>
#include <QtGui/qguiapplication.h>
#include <QtGui/qoffscreensurface.h>
#include <QtGui/qpa/qwindowsysteminterface.h>
#include <QtGui/rhi/qrhi.h>
#include <qtwasmtestlib.h>
#include <emscripten.h>
#include <emscripten/val.h>
#include <functional>
#include <memory>
#include <vector>
namespace tst_qwasmcompositor_internal {
namespace {
class Window : public QWindow
{
Q_OBJECT
public:
Window();
~Window() override { qDebug() << "dtor Window"; }
void keyPressEvent(QKeyEvent *) final;
signals:
void exposed();
void keyEventReceived();
void initFailed();
protected:
private:
void init();
void exposeEvent(QExposeEvent *) override;
bool m_exposedOnce = false;
std::unique_ptr<QOffscreenSurface> m_fallbackSurface;
std::unique_ptr<QRhi> m_rhi;
};
Window::Window()
{
setSurfaceType(OpenGLSurface);
}
void Window::exposeEvent(QExposeEvent *)
{
if (isExposed() && !m_exposedOnce) {
m_exposedOnce = true;
init();
emit exposed();
}
}
void Window::keyPressEvent(QKeyEvent *)
{
emit keyEventReceived();
}
void Window::init()
{
QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers;
m_fallbackSurface.reset(QRhiGles2InitParams::newFallbackSurface());
QRhiGles2InitParams params;
params.fallbackSurface = m_fallbackSurface.get();
params.window = this;
// Double init of RHI causes the OpenGL context to be destroyed, which causes a bug with input.
m_rhi.reset(QRhi::create(QRhi::OpenGLES2, ¶ms, rhiFlags));
m_rhi.reset(QRhi::create(QRhi::OpenGLES2, ¶ms, rhiFlags));
if (!m_rhi)
emit initFailed();
}
} // namespace
} // namespace tst_qwasmcompositor_internal
using namespace emscripten;
class QWasmCompositorTest : public QObject
{
Q_OBJECT
public:
QWasmCompositorTest() : m_window(val::global("window")), m_testSupport(val::object())
{
m_window.set("testSupport", m_testSupport);
m_testSupport.set("qtSetContainerElements",
emscripten::val::module_property("qtSetContainerElements"));
}
~QWasmCompositorTest() noexcept
{
qDebug() << this << "In dtor";
for (auto it = m_cleanup.rbegin(); it != m_cleanup.rend(); ++it)
(*it)();
m_window.set("testSupport", emscripten::val::undefined());
}
private:
void init()
{
EM_ASM({
testSupport.screenElement = document.createElement("div");
testSupport.screenElement.id = "test-canvas-qwasmcompositor";
document.body.appendChild(testSupport.screenElement);
});
m_cleanup.emplace_back([]() mutable {
EM_ASM({
testSupport.qtSetContainerElements([]);
testSupport.screenElement.parentElement.removeChild(testSupport.screenElement);
});
});
EM_ASM({ testSupport.qtSetContainerElements([testSupport.screenElement]); });
}
template<class T>
T *Own(T *plainPtr)
{
m_cleanup.emplace_back([plainPtr]() mutable { delete plainPtr; });
return plainPtr;
}
val m_window;
val m_testSupport;
std::vector<std::function<void()>> m_cleanup;
private slots:
void testReceivingKeyboardEventsAfterOpenGLContextReset();
};
void QWasmCompositorTest::testReceivingKeyboardEventsAfterOpenGLContextReset()
{
init();
using Window = tst_qwasmcompositor_internal::Window;
Window *window = Own(new Window);
window->show();
window->requestActivate();
QWindowSystemInterface::flushWindowSystemEvents();
QObject::connect(window, &Window::keyEventReceived, []() { QWASMSUCCESS(); });
QObject::connect(window, &Window::initFailed,
[]() { QWASMFAIL("Cannot initialize test window"); });
QObject::connect(window, &Window::exposed, []() {
EM_ASM({
testSupport.screenElement.shadowRoot.querySelector('.qt-window')
.dispatchEvent(new KeyboardEvent('keydown', { key : 'a' }));
});
});
}
int main(int argc, char **argv)
{
auto testObject = std::make_shared<QWasmCompositorTest>();
QtWasmTest::initTestCase<QGuiApplication>(argc, argv, testObject);
return 0;
}
#include "qwasmcompositor_main.moc"
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