feat: add layershell support

src/cpp/qmlglobal.hpp

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <qcontainerfwd.h>
+#include <qobject.h>
+#include <qqmlintegration.h>
+#include <qqmllist.h>
+#include <qtmetamacros.h>
+#include <qtypes.h>
+
+#include "qmlscreen.hpp"
+
+class QtShellGlobal: public QObject {
+	Q_OBJECT;
+	Q_PROPERTY(QQmlListProperty<QtShellScreenInfo> screens READ screens NOTIFY screensChanged);
+	QML_SINGLETON;
+	QML_ELEMENT;
+
+public:
+	QtShellGlobal(QObject* parent = nullptr);
+
+	QQmlListProperty<QtShellScreenInfo> screens();
+
+signals:
+	void screensChanged();
+
+public slots:
+	void updateScreens();
+
+private:
+	static qsizetype screensCount(QQmlListProperty<QtShellScreenInfo>* prop);
+	static QtShellScreenInfo* screenAt(QQmlListProperty<QtShellScreenInfo>* prop, qsizetype i);
+
+	QVector<QtShellScreenInfo*> mScreens;
+};