2026-04-06 00:20:51 -05:00

490 lines
14 KiB
C++

/*
This file is part of KDDockWidgets.
SPDX-FileCopyrightText: 2019 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Sérgio Martins <sergio.martins@kdab.com>
SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "Platform.h"
#include "Window_p.h"
#include "kddockwidgets/KDDockWidgets.h"
#include "kddockwidgets/core/EventFilterInterface.h"
#include "core/Platform_p.h"
#include "core/Utils_p.h"
#include "core/Logging_p.h"
#include "core/DelayedCall_p.h"
#include "qtcommon/View.h"
#include <QWindow>
#include <QDebug>
#include <QGuiApplication>
#include <QElapsedTimer>
#include <QScreen>
#include <QTimer>
#include <QFile>
#include <QOperatingSystemVersion>
using namespace KDDockWidgets;
using namespace KDDockWidgets::QtCommon;
using namespace KDDockWidgets::Core;
// clazy:excludeall=missing-qobject-macro
class Platform_qt::GlobalEventFilter : public QObject
{
public:
explicit GlobalEventFilter(Platform_qt *qq)
: q(qq)
{
if (qGuiApp) {
qGuiApp->installEventFilter(this);
} else {
qWarning() << Q_FUNC_INFO << "Expected a qGuiApp!";
}
}
bool eventFilter(QObject *o, QEvent *ev) override
{
if (ev->type() == QEvent::Expose)
return handleExpose(o);
else if (QMouseEvent *me = mouseEvent(ev))
return handleMouseEvent(o, me);
else if (isDnDEvent(ev))
return handleDnDEvent(o, ev);
else if (ev->type() == QEvent::Move)
return handleMoveEvent(o, ev);
else if (ev->type() != QEvent::Quit || m_isProcessingAppQuitEvent)
return false;
auto view = Platform_qt::instance()->qobjectAsView(o);
if (!view)
return false;
m_isProcessingAppQuitEvent = true;
qGuiApp->sendEvent(qApp, ev);
m_isProcessingAppQuitEvent = false;
return true;
}
bool handleMoveEvent(QObject *o, QEvent *)
{
if (q->d->m_globalEventFilters.empty())
return false;
auto view = Platform_qt::instance()->qobjectAsView(o);
for (EventFilterInterface *filter : std::as_const(q->d->m_globalEventFilters)) {
if (filter->onMoveEvent(view.get()))
return true;
}
return false;
}
bool handleDnDEvent(QObject *o, QEvent *ev)
{
if (q->d->m_globalEventFilters.empty())
return false;
if (auto view = Platform_qt::instance()->qobjectAsView(o)) {
for (EventFilterInterface *filter : std::as_const(q->d->m_globalEventFilters)) {
if (filter->onDnDEvent(view.get(), ev))
return true;
}
}
return false;
}
bool handleExpose(QObject *o)
{
if (q->d->m_globalEventFilters.empty())
return false;
auto window = Platform_qt::instance()->qobjectAsWindow(o);
if (!window)
return false;
for (EventFilterInterface *filter : std::as_const(q->d->m_globalEventFilters)) {
if (filter->enabled() && filter->onExposeEvent(window))
return true;
}
return false;
}
bool handleMouseEvent(QObject *watched, QMouseEvent *ev)
{
if (q->d->m_globalEventFilters.empty())
return false;
auto view = Platform_qt::instance()->qobjectAsView(watched);
// Make a copy, as there could be reentrancy and filters getting removed while event being
// processed
const auto filters = std::as_const(q->d->m_globalEventFilters);
for (EventFilterInterface *filter : filters) {
// Filter might have been deleted meanwhile
if (std::find(q->d->m_globalEventFilters.cbegin(), q->d->m_globalEventFilters.cend(),
filter)
== q->d->m_globalEventFilters.cend())
continue;
if (!filter->enabled())
continue;
if (filter->onMouseEvent(view.get(), ev))
return true;
switch (ev->type()) {
case QEvent::MouseButtonPress:
if (filter->onMouseButtonPress(view.get(), ev))
return true;
break;
case QEvent::MouseButtonRelease:
if (filter->onMouseButtonRelease(view.get(), ev))
return true;
break;
case QEvent::MouseMove:
if (filter->onMouseButtonMove(view.get(), ev))
return true;
break;
case QEvent::MouseButtonDblClick:
if (filter->onMouseDoubleClick(view.get(), ev))
return true;
break;
default:
break;
}
}
return false;
}
~GlobalEventFilter() override;
bool m_isProcessingAppQuitEvent = false;
Platform_qt *const q;
};
Platform_qt::GlobalEventFilter::~GlobalEventFilter() = default;
Platform_qt::Platform_qt()
: m_globalEventFilter(new GlobalEventFilter(this))
{
if (!qGuiApp)
qWarning() << "Please call KDDockWidgets::initPlatform() after QGuiApplication";
}
Platform_qt::~Platform_qt()
{
delete m_globalEventFilter;
}
std::shared_ptr<View> Platform_qt::focusedView() const
{
return qobjectAsView(qGuiApp->focusObject());
}
Core::Window::List Platform_qt::windows() const
{
Core::Window::List windows;
const auto qtwindows = qGuiApp->topLevelWindows();
windows.reserve(qtwindows.size());
for (QWindow *qtwindow : qtwindows) {
windows << windowFromQWindow(qtwindow);
}
return windows;
}
std::shared_ptr<Core::Window> Platform_qt::qobjectAsWindow(QObject *obj) const
{
if (auto window = qobject_cast<QWindow *>(obj))
return windowFromQWindow(window);
return nullptr;
}
int Platform_qt::screenNumberForWindow(std::shared_ptr<Core::Window> window) const
{
if (!window)
return -1;
return screenNumberForQWindow(static_cast<Window *>(window.get())->qtWindow());
}
int Platform_qt::screenNumberForPoint(Point pt) const
{
const auto screens = qGuiApp->screens();
for (int i = 0; i < screens.size(); ++i) {
if (screens[i]->geometry().contains(pt))
return i;
}
return -1;
}
int Platform_qt::screenNumberForQWindow(QWindow *window) const
{
if (QScreen *screen = window->screen()) {
return qGuiApp->screens().indexOf(screen);
}
return -1;
}
void Platform_qt::sendEvent(View *view, QEvent *ev) const
{
qGuiApp->sendEvent(QtCommon::View_qt::asQObject(view), ev);
}
bool Platform_qt::isProcessingAppQuitEvent() const
{
return m_globalEventFilter->m_isProcessingAppQuitEvent;
}
QString Platform_qt::applicationName() const
{
return qGuiApp->applicationName();
}
void Platform_qt::setMouseCursor(Qt::CursorShape shape, bool discardLast)
{
if (discardLast) {
qGuiApp->changeOverrideCursor(shape);
} else {
qGuiApp->setOverrideCursor(shape);
}
}
void Platform_qt::restoreMouseCursor()
{
qGuiApp->restoreOverrideCursor();
}
QPoint Platform_qt::cursorPos() const
{
return QCursor::pos();
}
void Platform_qt::setCursorPos(QPoint pos)
{
QCursor::setPos(pos);
}
Core::Platform::DisplayType Platform_qt::displayType() const
{
if (qGuiApp->platformName() == QLatin1String("wayland"))
return DisplayType::Wayland;
if (qGuiApp->platformName() == QLatin1String("offscreen"))
return DisplayType::QtOffscreen;
if (qGuiApp->platformName() == QLatin1String("xcb"))
return DisplayType::X11;
if (qGuiApp->platformName() == QLatin1String("eglfs"))
return DisplayType::QtEGLFS;
if (qGuiApp->platformName() == QLatin1String("windows"))
return DisplayType::Windows;
return DisplayType::Other;
}
bool Platform_qt::isLeftMouseButtonPressed() const
{
return qGuiApp->mouseButtons() & Qt::LeftButton;
}
/*static*/
Platform_qt *Platform_qt::instance()
{
return static_cast<Platform_qt *>(Platform::instance());
}
Screen::List Platform_qt::screens() const
{
const auto qscreens = qGuiApp->screens();
Screen::List screens;
screens.reserve(qscreens.size());
for (auto qscreen : qscreens) {
screens.push_back(std::make_shared<Screen_qt>(qscreen));
}
return screens;
}
Screen::Ptr Platform_qt::primaryScreen() const
{
return std::make_shared<Screen_qt>(qGuiApp->primaryScreen());
}
void Platform_qt::runDelayed(int ms, Core::DelayedCall *c)
{
QTimer::singleShot(ms, qGuiApp, [c] { c->call(); delete c; });
}
QByteArray Platform_qt::readFile(const QString &fileName, bool &ok) const
{
QFile f(fileName);
ok = f.open(QIODevice::ReadOnly);
if (!ok) {
KDDW_ERROR("Failed to open {}, error={}", fileName, f.errorString());
return {};
}
return f.readAll();
}
bool Platform_qt::supportsAeroSnap() const
{
#if defined(Q_OS_WIN)
// Aero-snap requires Windows 10
return QOperatingSystemVersion::current().majorVersion() >= 10;
#endif
return false;
}
#ifdef DOCKS_DEVELOPER_MODE
int Platform_qt::s_logicalDpiFactorOverride = 0;
// ctor used by the tests only
Platform_qt::Platform_qt(QCoreApplication *)
: m_globalEventFilter(new GlobalEventFilter(this))
{
// We want stability during tests.
// QMainWindow uses the factor for its margins, we don't want tests failing due
// to off by 1 or 2 pixels. Use 96dpi everywhere.
Platform_qt::s_logicalDpiFactorOverride = 1;
}
namespace KDDockWidgets::Tests {
static QtMessageHandler s_original = nullptr;
static bool shouldBlacklistWarning(const QString &msg, const QString &category)
{
if (category == QLatin1String("qt.qpa.xcb"))
return true;
#ifdef Q_OS_WIN
#if QT_VERSION == QT_VERSION_CHECK(6, 9, 0)
// QTBUG-135844
if (qGuiApp->applicationFilePath().contains(QLatin1String("tst_native_qpa.exe")))
return true;
#endif
#endif
return msg.contains(QLatin1String("QSocketNotifier: Invalid socket"))
|| msg.contains(QLatin1String("QWindowsWindow::setGeometry"))
|| msg.contains(QLatin1String("This plugin does not support"))
|| msg.contains(QLatin1String("Note that Qt no longer ships fonts"))
|| msg.contains(QLatin1String("Unable to set geometry"))
|| msg.contains(QLatin1String("Another dock KDDockWidgets::DockWidget"))
|| msg.contains(
QLatin1String("There's multiple MainWindows, not sure what to do about parenting"))
|| msg.contains(QLatin1String("Testing::"))
|| msg.contains(QLatin1String("outside any known screen, using primary screen"))
|| msg.contains(QLatin1String("Populating font family aliases took"))
|| msg.contains(QLatin1String("QSGThreadedRenderLoop: expose event received for window"))
|| msg.contains(QLatin1String("Group.qml:0: ReferenceError: parent is not defined"))
|| msg.contains(QLatin1String("QApplication::regClass: Registering window class"))
// Ignore benign warning in Material style when deleting a dock widget. Should be fixed in
// Qt.
|| (msg.contains(QLatin1String("TypeError: Cannot read property"))
&& msg.contains(QLatin1String("Material")));
}
static void fatalWarningsMessageHandler(QtMsgType t, const QMessageLogContext &context,
const QString &msg)
{
if (shouldBlacklistWarning(msg, QLatin1String(context.category)))
return;
s_original(t, context, msg);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
// There's a ton of benign warnings in Qt5 QML when app exits, which add maintenance burden.
// Please, jump to Qt 6
if (Core::Platform::instance()->isQtQuick())
return;
#endif
if (t == QtWarningMsg) {
const std::string expectedWarning = Core::Platform::instance()->m_expectedWarning;
if (!expectedWarning.empty() && msg.contains(QString::fromStdString(expectedWarning)))
return;
if (!Platform_qt::isGammaray() && !qEnvironmentVariableIsSet("NO_FATAL")) {
std::terminate();
}
}
}
}
void Platform_qt::installMessageHandler()
{
Tests::s_original = qInstallMessageHandler(Tests::fatalWarningsMessageHandler);
}
void Platform_qt::uninstallMessageHandler()
{
if (!Tests::s_original)
qWarning() << Q_FUNC_INFO
<< "No message handler was installed or the fatalWarningsMessageHandler was "
"already uninstalled!";
qInstallMessageHandler(Tests::s_original);
Tests::s_original = nullptr;
}
void Platform_qt::tests_initPlatform_impl()
{
qGuiApp->setOrganizationName(QStringLiteral("KDAB"));
qGuiApp->setApplicationName(QStringLiteral("dockwidgets-unit-tests"));
}
void Platform_qt::tests_deinitPlatform_impl()
{
delete qGuiApp;
}
bool Platform_qt::tests_waitForEvent(std::shared_ptr<Core::Window> window, QEvent::Type type,
int timeout) const
{
auto windowqt = static_cast<Window *>(window.get());
return tests_waitForEvent(windowqt->qtWindow(), type, timeout);
}
void Platform_qt::maybeSetOffscreenQPA(int argc, char **argv)
{
bool qpaPassed = false;
for (int i = 1; i < argc; ++i) {
if (qstrcmp(argv[i], "-platform") == 0) {
qpaPassed = true;
break;
}
}
if (!qpaPassed && !qEnvironmentVariableIsSet("KDDW_NO_OFFSCREEN")) {
// Use offscreen by default as it's less annoying, doesn't create visible windows
qputenv("QT_QPA_PLATFORM", "offscreen");
}
}
/*static*/
QT_BEGIN_NAMESPACE
extern quintptr Q_CORE_EXPORT qtHookData[];
QT_END_NAMESPACE
bool Platform_qt::isGammaray()
{
static bool is = qtHookData[3] != 0;
return is;
}
#endif