debug: run lints after window expose

Ensures items are at their final sizes before checking them,
fixing some false positives.

src/wayland/wlr_layershell.cpp

@@ -18,7 +18,7 @@ WlrLayershell::WlrLayershell(QObject* parent)
     : ProxyWindowBase(parent)
     , ext(new LayershellWindowExtension(this)) {}
 
-QQuickWindow* WlrLayershell::retrieveWindow(QObject* oldInstance) {
+ProxiedWindow* WlrLayershell::retrieveWindow(QObject* oldInstance) {
 	auto* old = qobject_cast<WlrLayershell*>(oldInstance);
 	auto* window = old == nullptr ? nullptr : old->disownWindow();
 
@@ -33,8 +33,8 @@ QQuickWindow* WlrLayershell::retrieveWindow(QObject* oldInstance) {
 	return this->createQQuickWindow();
 }
 
-QQuickWindow* WlrLayershell::createQQuickWindow() {
-	auto* window = new QQuickWindow();
+ProxiedWindow* WlrLayershell::createQQuickWindow() {
+	auto* window = this->ProxyWindowBase::createQQuickWindow();
 
 	if (!this->ext->attach(window)) {
 		qWarning() << "Could not attach Layershell extension to new QQuickWindow. Layer will not "

src/wayland/wlr_layershell.hpp

@@ -64,8 +64,8 @@ class WlrLayershell: public ProxyWindowBase {
 public:
 	explicit WlrLayershell(QObject* parent = nullptr);
 
-	QQuickWindow* retrieveWindow(QObject* oldInstance) override;
-	QQuickWindow* createQQuickWindow() override;
+	ProxiedWindow* retrieveWindow(QObject* oldInstance) override;
+	ProxiedWindow* createQQuickWindow() override;
 	void connectWindow() override;
 	[[nodiscard]] bool deleteOnInvisible() const override;
 

src/window/proxywindow.cpp

@@ -1,6 +1,7 @@
 #include "proxywindow.hpp"
 
 #include <private/qquickwindow_p.h>
+#include <qevent.h>
 #include <qnamespace.h>
 #include <qobject.h>
 #include <qqmlcontext.h>
@@ -80,7 +81,7 @@ void ProxyWindowBase::onReload(QObject* oldInstance) {
 
 void ProxyWindowBase::postCompleteWindow() { this->setVisible(this->mVisible); }
 
-QQuickWindow* ProxyWindowBase::createQQuickWindow() { return new QQuickWindow(); }
+ProxiedWindow* ProxyWindowBase::createQQuickWindow() { return new ProxiedWindow(); }
 
 void ProxyWindowBase::createWindow() {
 	if (this->window != nullptr) return;
@@ -102,7 +103,7 @@ void ProxyWindowBase::deleteWindow(bool keepItemOwnership) {
 	}
 }
 
-QQuickWindow* ProxyWindowBase::disownWindow(bool keepItemOwnership) {
+ProxiedWindow* ProxyWindowBase::disownWindow(bool keepItemOwnership) {
 	if (this->window == nullptr) return nullptr;
 
 	QObject::disconnect(this->window, nullptr, this, nullptr);
@@ -116,7 +117,7 @@ QQuickWindow* ProxyWindowBase::disownWindow(bool keepItemOwnership) {
 	return window;
 }
 
-QQuickWindow* ProxyWindowBase::retrieveWindow(QObject* oldInstance) {
+ProxiedWindow* ProxyWindowBase::retrieveWindow(QObject* oldInstance) {
 	auto* old = qobject_cast<ProxyWindowBase*>(oldInstance);
 	return old == nullptr ? nullptr : old->disownWindow();
 }
@@ -136,6 +137,7 @@ void ProxyWindowBase::connectWindow() {
 	QObject::connect(this->window, &QWindow::heightChanged, this, &ProxyWindowBase::heightChanged);
 	QObject::connect(this->window, &QWindow::screenChanged, this, &ProxyWindowBase::screenChanged);
 	QObject::connect(this->window, &QQuickWindow::colorChanged, this, &ProxyWindowBase::colorChanged);
+	QObject::connect(this->window, &ProxiedWindow::exposed, this, &ProxyWindowBase::onWindowExposeEvent);
 	// clang-format on
 }
 
@@ -215,7 +217,9 @@ void ProxyWindowBase::polishItems() {
 	// This hack manually polishes the item tree right before showing the window so it will
 	// always be created with the correct size.
 	QQuickWindowPrivate::get(this->window)->polishItems();
+}
 
+void ProxyWindowBase::onWindowExposeEvent() {
 	if (!this->ranLints) {
 		qs::debug::lintItemTree(this->mContentItem);
 		this->ranLints = true;
@@ -368,3 +372,8 @@ void ProxyWindowBase::onHeightChanged() { this->mContentItem->setHeight(this->he
 
 QObject* ProxyWindowAttached::window() const { return this->mWindow; }
 QQuickItem* ProxyWindowAttached::contentItem() const { return this->mWindow->contentItem(); }
+
+void ProxiedWindow::exposeEvent(QExposeEvent* event) {
+	this->QQuickWindow::exposeEvent(event);
+	emit this->exposed();
+}

src/window/proxywindow.hpp

@@ -11,12 +11,15 @@
 #include <qquickwindow.h>
 #include <qtmetamacros.h>
 #include <qtypes.h>
+#include <qwindow.h>
 
 #include "../core/qmlscreen.hpp"
 #include "../core/region.hpp"
 #include "../core/reload.hpp"
 #include "windowinterface.hpp"
 
+class ProxiedWindow;
+
 // Proxy to an actual window exposing a limited property set with the ability to
 // transfer it to a new window.
 
@@ -60,10 +63,10 @@ public:
 	void deleteWindow(bool keepItemOwnership = false);
 
 	// Disown the backing window and delete all its children.
-	virtual QQuickWindow* disownWindow(bool keepItemOwnership = false);
+	virtual ProxiedWindow* disownWindow(bool keepItemOwnership = false);
 
-	virtual QQuickWindow* retrieveWindow(QObject* oldInstance);
-	virtual QQuickWindow* createQQuickWindow();
+	virtual ProxiedWindow* retrieveWindow(QObject* oldInstance);
+	virtual ProxiedWindow* createQQuickWindow();
 	virtual void connectWindow();
 	virtual void completeWindow();
 	virtual void postCompleteWindow();
@@ -119,6 +122,7 @@ protected slots:
 	void onMaskChanged();
 	void onMaskDestroyed();
 	void onScreenDestroyed();
+	void onWindowExposeEvent();
 
 protected:
 	bool mVisible = true;
@@ -127,7 +131,7 @@ protected:
 	QScreen* mScreen = nullptr;
 	QColor mColor = Qt::white;
 	PendingRegion* mMask = nullptr;
-	QQuickWindow* window = nullptr;
+	ProxiedWindow* window = nullptr;
 	QQuickItem* mContentItem = nullptr;
 	bool reloadComplete = false;
 	bool ranLints = false;
@@ -151,3 +155,16 @@ public:
 private:
 	ProxyWindowBase* mWindow;
 };
+
+class ProxiedWindow: public QQuickWindow {
+	Q_OBJECT;
+
+public:
+	explicit ProxiedWindow(QWindow* parent = nullptr): QQuickWindow(parent) {}
+
+signals:
+	void exposed();
+
+protected:
+	void exposeEvent(QExposeEvent* event) override;
+};