From d3d7430ec9afb94abaf78fa2c9edd9d9f946881c Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周一, 18 12月 2023 01:29:07 +0800
Subject: [PATCH] Add QtContext WinIdChange workaround
---
src/core/contexts/cocoawindowcontext.mm | 384 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 381 insertions(+), 3 deletions(-)
diff --git a/src/core/contexts/cocoawindowcontext.mm b/src/core/contexts/cocoawindowcontext.mm
index a676756..edd2c3a 100644
--- a/src/core/contexts/cocoawindowcontext.mm
+++ b/src/core/contexts/cocoawindowcontext.mm
@@ -1,11 +1,375 @@
#include "cocoawindowcontext_p.h"
+#include <objc/runtime.h>
+#include <AppKit/AppKit.h>
+
+#include <QtGui/QGuiApplication>
+
namespace QWK {
- CocoaWindowContext::CocoaWindowContext() {
+ struct NSWindowProxy {
+ NSWindowProxy(NSWindow *macWindow) {
+ if (instances.contains(macWindow)) {
+ return;
+ }
+ nswindow = macWindow;
+ instances.insert(macWindow, this);
+ if (!windowClass) {
+ windowClass = [nswindow class];
+ replaceImplementations();
+ }
+ }
+
+ ~NSWindowProxy() {
+ instances.remove(nswindow);
+ if (instances.count() <= 0) {
+ restoreImplementations();
+ windowClass = nil;
+ }
+ nswindow = nil;
+ }
+
+ void replaceImplementations() {
+ Method method = class_getInstanceMethod(windowClass, @selector(setStyleMask:));
+ oldSetStyleMask = reinterpret_cast<setStyleMaskPtr>(
+ method_setImplementation(method, reinterpret_cast<IMP>(setStyleMask)));
+
+ method =
+ class_getInstanceMethod(windowClass, @selector(setTitlebarAppearsTransparent:));
+ oldSetTitlebarAppearsTransparent =
+ reinterpret_cast<setTitlebarAppearsTransparentPtr>(method_setImplementation(
+ method, reinterpret_cast<IMP>(setTitlebarAppearsTransparent)));
+
+#if 0
+ method = class_getInstanceMethod(windowClass, @selector(canBecomeKeyWindow));
+ oldCanBecomeKeyWindow = reinterpret_cast<canBecomeKeyWindowPtr>(method_setImplementation(method, reinterpret_cast<IMP>(canBecomeKeyWindow)));
+
+ method = class_getInstanceMethod(windowClass, @selector(canBecomeMainWindow));
+ oldCanBecomeMainWindow = reinterpret_cast<canBecomeMainWindowPtr>(method_setImplementation(method, reinterpret_cast<IMP>(canBecomeMainWindow)));
+#endif
+
+ method = class_getInstanceMethod(windowClass, @selector(sendEvent:));
+ oldSendEvent = reinterpret_cast<sendEventPtr>(
+ method_setImplementation(method, reinterpret_cast<IMP>(sendEvent)));
+ }
+
+ void restoreImplementations() {
+ Method method = class_getInstanceMethod(windowClass, @selector(setStyleMask:));
+ method_setImplementation(method, reinterpret_cast<IMP>(oldSetStyleMask));
+ oldSetStyleMask = nil;
+
+ method =
+ class_getInstanceMethod(windowClass, @selector(setTitlebarAppearsTransparent:));
+ method_setImplementation(method,
+ reinterpret_cast<IMP>(oldSetTitlebarAppearsTransparent));
+ oldSetTitlebarAppearsTransparent = nil;
+
+#if 0
+ method = class_getInstanceMethod(windowClass, @selector(canBecomeKeyWindow));
+ method_setImplementation(method, reinterpret_cast<IMP>(oldCanBecomeKeyWindow));
+ oldCanBecomeKeyWindow = nil;
+
+ method = class_getInstanceMethod(windowClass, @selector(canBecomeMainWindow));
+ method_setImplementation(method, reinterpret_cast<IMP>(oldCanBecomeMainWindow));
+ oldCanBecomeMainWindow = nil;
+#endif
+
+ method = class_getInstanceMethod(windowClass, @selector(sendEvent:));
+ method_setImplementation(method, reinterpret_cast<IMP>(oldSendEvent));
+ oldSendEvent = nil;
+ }
+
+ void setSystemTitleBarVisible(const bool visible) {
+ NSView *nsview = [nswindow contentView];
+ if (!nsview) {
+ return;
+ }
+ nsview.wantsLayer = YES;
+ nswindow.styleMask |= NSWindowStyleMaskResizable;
+ if (visible) {
+ nswindow.styleMask &= ~NSWindowStyleMaskFullSizeContentView;
+ } else {
+ nswindow.styleMask |= NSWindowStyleMaskFullSizeContentView;
+ }
+ nswindow.titlebarAppearsTransparent = (visible ? NO : YES);
+ nswindow.titleVisibility = (visible ? NSWindowTitleVisible : NSWindowTitleHidden);
+ nswindow.hasShadow = YES;
+ nswindow.showsToolbarButton = NO;
+ nswindow.movableByWindowBackground = NO;
+ nswindow.movable = NO; // This line causes the window in the wrong position when
+ // become fullscreen.
+ // For some unknown reason, we don't need the following hack in Qt versions below or
+ // equal to 6.2.4.
+#if (QT_VERSION > QT_VERSION_CHECK(6, 2, 4))
+ [nswindow standardWindowButton:NSWindowCloseButton].hidden = (visible ? NO : YES);
+ [nswindow standardWindowButton:NSWindowMiniaturizeButton].hidden = (visible ? NO : YES);
+ [nswindow standardWindowButton:NSWindowZoomButton].hidden = (visible ? NO : YES);
+#endif
+ }
+
+ private:
+ static BOOL canBecomeKeyWindow(id obj, SEL sel) {
+ if (instances.contains(reinterpret_cast<NSWindow *>(obj))) {
+ return YES;
+ }
+
+ if (oldCanBecomeKeyWindow) {
+ return oldCanBecomeKeyWindow(obj, sel);
+ }
+
+ return YES;
+ }
+
+ static BOOL canBecomeMainWindow(id obj, SEL sel) {
+ if (instances.contains(reinterpret_cast<NSWindow *>(obj))) {
+ return YES;
+ }
+
+ if (oldCanBecomeMainWindow) {
+ return oldCanBecomeMainWindow(obj, sel);
+ }
+
+ return YES;
+ }
+
+ static void setStyleMask(id obj, SEL sel, NSWindowStyleMask styleMask) {
+ if (instances.contains(reinterpret_cast<NSWindow *>(obj))) {
+ styleMask |= NSWindowStyleMaskFullSizeContentView;
+ }
+
+ if (oldSetStyleMask) {
+ oldSetStyleMask(obj, sel, styleMask);
+ }
+ }
+
+ static void setTitlebarAppearsTransparent(id obj, SEL sel, BOOL transparent) {
+ if (instances.contains(reinterpret_cast<NSWindow *>(obj))) {
+ transparent = YES;
+ }
+
+ if (oldSetTitlebarAppearsTransparent) {
+ oldSetTitlebarAppearsTransparent(obj, sel, transparent);
+ }
+ }
+
+ static void sendEvent(id obj, SEL sel, NSEvent *event) {
+ if (oldSendEvent) {
+ oldSendEvent(obj, sel, event);
+ }
+
+#if 0
+ const auto nswindow = reinterpret_cast<NSWindow *>(obj);
+ const auto it = instances.find(nswindow);
+ if (it == instances.end()) {
+ return;
+ }
+
+ NSWindowProxy *proxy = it.value();
+ if (event.type == NSEventTypeLeftMouseDown) {
+ proxy->lastMouseDownEvent = event;
+ QCoreApplication::processEvents();
+ proxy->lastMouseDownEvent = nil;
+ }
+#endif
+ }
+
+ private:
+ Q_DISABLE_COPY(NSWindowProxy)
+
+ NSWindow *nswindow = nil;
+ // NSEvent *lastMouseDownEvent = nil;
+
+ static inline QHash<NSWindow *, NSWindowProxy *> instances = {};
+
+ static inline Class windowClass = nil;
+
+ using setStyleMaskPtr = void (*)(id, SEL, NSWindowStyleMask);
+ static inline setStyleMaskPtr oldSetStyleMask = nil;
+
+ using setTitlebarAppearsTransparentPtr = void (*)(id, SEL, BOOL);
+ static inline setTitlebarAppearsTransparentPtr oldSetTitlebarAppearsTransparent = nil;
+
+ using canBecomeKeyWindowPtr = BOOL (*)(id, SEL);
+ static inline canBecomeKeyWindowPtr oldCanBecomeKeyWindow = nil;
+
+ using canBecomeMainWindowPtr = BOOL (*)(id, SEL);
+ static inline canBecomeMainWindowPtr oldCanBecomeMainWindow = nil;
+
+ using sendEventPtr = void (*)(id, SEL, NSEvent *);
+ static inline sendEventPtr oldSendEvent = nil;
+ };
+
+ using ProxyList = QHash<WId, NSWindowProxy *>;
+ Q_GLOBAL_STATIC(ProxyList, g_proxyList);
+
+ static inline NSWindow *mac_getNSWindow(const WId windowId) {
+ const auto nsview = reinterpret_cast<NSView *>(windowId);
+ return [nsview window];
+ }
+
+ static inline void cleanupProxy() {
+ if (g_proxyList()->isEmpty()) {
+ return;
+ }
+ const auto &data = *g_proxyList();
+ qDeleteAll(data);
+ g_proxyList()->clear();
+ }
+
+ static inline NSWindowProxy *ensureWindowProxy(const WId windowId) {
+ auto it = g_proxyList()->find(windowId);
+ if (it == g_proxyList()->end()) {
+ NSWindow *nswindow = mac_getNSWindow(windowId);
+ const auto proxy = new NSWindowProxy(nswindow);
+ it = g_proxyList()->insert(windowId, proxy);
+ }
+ static bool cleanerInstalled = false;
+ if (!cleanerInstalled) {
+ cleanerInstalled = true;
+ qAddPostRoutine(cleanupProxy);
+ }
+ return it.value();
+ }
+
+ class CocoaWindowEventFilter : public QObject {
+ public:
+ explicit CocoaWindowEventFilter(AbstractWindowContext *context, QObject *parent = nullptr);
+ ~CocoaWindowEventFilter() override;
+
+ enum WindowStatus {
+ Idle,
+ WaitingRelease,
+ PreparingMove,
+ Moving,
+ };
+
+ protected:
+ bool eventFilter(QObject *object, QEvent *event) override;
+
+ private:
+ AbstractWindowContext *m_context;
+ bool m_cursorShapeChanged;
+ WindowStatus m_windowStatus;
+ };
+
+ CocoaWindowEventFilter::CocoaWindowEventFilter(AbstractWindowContext *context, QObject *parent)
+ : QObject(parent), m_context(context), m_cursorShapeChanged(false), m_windowStatus(Idle) {
+ m_context->window()->installEventFilter(this);
+ }
+
+ CocoaWindowEventFilter::~CocoaWindowEventFilter() = default;
+
+ bool CocoaWindowEventFilter::eventFilter(QObject *obj, QEvent *event) {
+ Q_UNUSED(obj)
+ auto type = event->type();
+ if (type < QEvent::MouseButtonPress || type > QEvent::MouseMove) {
+ return false;
+ }
+ QObject *host = m_context->host();
+ QWindow *window = m_context->window();
+ WindowItemDelegate *delegate = m_context->delegate();
+ auto me = static_cast<const QMouseEvent *>(event);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+ QPoint scenePos = me->scenePosition().toPoint();
+ QPoint globalPos = me->globalPosition().toPoint();
+#else
+ QPoint scenePos = me->windowPos().toPoint();
+ QPoint globalPos = me->screenPos().toPoint();
+#endif
+ bool inTitleBar = m_context->isInTitleBarDraggableArea(scenePos);
+ switch (type) {
+ case QEvent::MouseButtonPress: {
+ switch (me->button()) {
+ case Qt::LeftButton: {
+ if (inTitleBar) {
+ // If we call startSystemMove() now but release the mouse without actual
+ // movement, there will be no MouseReleaseEvent, so we defer it when the
+ // mouse is actually moving for the first time
+ m_windowStatus = PreparingMove;
+ event->accept();
+ return true;
+ }
+ m_windowStatus = WaitingRelease;
+ break;
+ }
+ case Qt::RightButton: {
+ m_context->showSystemMenu(globalPos);
+ break;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+
+ case QEvent::MouseButtonRelease: {
+ switch (m_windowStatus) {
+ case PreparingMove:
+ case Moving: {
+ m_windowStatus = Idle;
+ event->accept();
+ return true;
+ }
+ case WaitingRelease: {
+ m_windowStatus = Idle;
+ break;
+ }
+ default: {
+ if (inTitleBar) {
+ event->accept();
+ return true;
+ }
+ break;
+ }
+ }
+ break;
+ }
+
+ case QEvent::MouseMove: {
+ switch (m_windowStatus) {
+ case Moving: {
+ return true;
+ }
+ case PreparingMove: {
+ m_windowStatus = Moving;
+ window->startSystemMove();
+ event->accept();
+ return true;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+
+ case QEvent::MouseButtonDblClick: {
+ if (me->button() == Qt::LeftButton && inTitleBar &&
+ !delegate->isHostSizeFixed(host)) {
+ Qt::WindowStates windowState = delegate->getWindowState(host);
+ if (!(windowState & Qt::WindowFullScreen)) {
+ if (windowState & Qt::WindowMaximized) {
+ delegate->setWindowState(host, windowState & ~Qt::WindowMaximized);
+ } else {
+ delegate->setWindowState(host, windowState | Qt::WindowMaximized);
+ }
+ event->accept();
+ return true;
+ }
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+ return false;
+ }
+
+ CocoaWindowContext::CocoaWindowContext() : AbstractWindowContext() {
}
CocoaWindowContext::~CocoaWindowContext() {
+ // TODO: deref something?
}
QString CocoaWindowContext::key() const {
@@ -13,10 +377,24 @@
}
void CocoaWindowContext::virtual_hook(int id, void *data) {
+ switch (id) {
+ case ShowSystemMenuHook:
+ // TODO: mac system menu
+ return;
+ case SystemButtonAreaChangedHook:
+ // TODO: mac system button rect updated
+ return;
+ default:
+ break;
+ }
+ AbstractWindowContext::virtual_hook(id, data);
}
- bool CocoaWindowContext::setupHost() {
- return false;
+ void CocoaWindowContext::winIdChanged(QWindow *oldWindow, bool destroyed) {
+ windowId = m_windowHandle->winId();
+ ensureWindowProxy(windowId)->setSystemTitleBarVisible(false);
+ cocoaWindowEventFilter = std::make_unique<CocoaWindowEventFilter>(this, this);
+ return true;
}
}
--
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