core: add qt version check in preprocessor

src/core/qmlglobal.cpp

@@ -18,8 +18,10 @@
 #include <qscreen.h>
 #include <qtenvironmentvariables.h>
 #include <qtmetamacros.h>
+#include <qtversion.h>
 #include <qtypes.h>
 #include <qvariant.h>
+#include <qversionnumber.h>
 #include <qwindowdefs.h>
 #include <unistd.h>
 
@@ -343,6 +345,12 @@ bool QuickshellGlobal::hasVersion(qint32 major, qint32 minor) {
 	return QuickshellGlobal::hasVersion(major, minor, QStringList());
 }
 
+bool QuickshellGlobal::hasQtVersion(int major, int minor) {
+	auto qtVersion = QVersionNumber::fromString(qVersion());
+	auto requiredVersion = QVersionNumber(major, minor);
+	return qtVersion >= requiredVersion;
+}
+
 QuickshellGlobal* QuickshellGlobal::create(QQmlEngine* engine, QJSEngine* /*unused*/) {
 	auto* qsg = new QuickshellGlobal();
 	auto* generation = EngineGeneration::findEngineGeneration(engine);

src/core/qmlglobal.hpp

@@ -244,7 +244,7 @@ public:
 	/// it is assumed that all unreleased features are present. The unreleased feature list
 	/// may be omitted.
 	///
-	/// > [!NOTE] You can feature gate code blocks using Quickshell's preprocessor which
+	/// > [!NOTE] You can version gate code blocks using Quickshell's preprocessor which
 	/// > has the same function available.
 	/// >
 	/// > ```qml
@@ -254,6 +254,17 @@ public:
 	/// > ```
 	Q_INVOKABLE static bool hasVersion(qint32 major, qint32 minor, const QStringList& features);
 	Q_INVOKABLE static bool hasVersion(qint32 major, qint32 minor);
+	/// Check if Qt's version is at least `major.minor`.
+	///
+	/// > [!NOTE] You can version gate code blocks using Quickshell's preprocessor which
+	/// > has the same function available.
+	/// >
+	/// > ```qml
+	/// > //@ if hasVersion(6, 10)
+	/// > ...
+	/// > //@ endif
+	/// > ```
+	Q_INVOKABLE static bool hasQtVersion(qint32 major, qint32 minor);
 
 	void clearReloadPopupInhibit() { this->mInhibitReloadPopup = false; }
 	[[nodiscard]] bool isReloadPopupInhibited() const { return this->mInhibitReloadPopup; }

src/core/scanenv.cpp

@@ -2,6 +2,8 @@
 
 #include <qcontainerfwd.h>
 #include <qtenvironmentvariables.h>
+#include <qtversion.h>
+#include <qversionnumber.h>
 
 #include "build.hpp"
 
@@ -20,6 +22,12 @@ bool PreprocEnv::hasVersion(int major, int minor, const QStringList& features) {
 	return QS_VERSION_MAJOR == major && QS_VERSION_MINOR == minor;
 }
 
+bool PreprocEnv::hasQtVersion(int major, int minor) {
+	auto qtVersion = QVersionNumber::fromString(qVersion());
+	auto requiredVersion = QVersionNumber(major, minor);
+	return qtVersion >= requiredVersion;
+}
+
 QString PreprocEnv::env(const QString& variable) {
 	return qEnvironmentVariable(variable.toStdString().c_str());
 }

src/core/scanenv.hpp

@@ -12,6 +12,7 @@ class PreprocEnv: public QObject {
 public:
 	Q_INVOKABLE static bool
 	hasVersion(int major, int minor, const QStringList& features = QStringList());
+	Q_INVOKABLE static bool hasQtVersion(int major, int minor);
 
 	Q_INVOKABLE static QString env(const QString& variable);
 	Q_INVOKABLE static bool isEnvSet(const QString& variable);