Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-kwidgetsaddons/source/src/kadjustingscrollarea.cpp

@@ -0,0 +1,113 @@
+// SPDX-FileCopyrightText: 2007 Klarälvdalens Datakonsult AB
+// SPDX-FileCopyrightText: 2022 g10 Code GmbH
+// SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
+// SPDX-FileContributor: Carl Schwan <carl.schwan@gnupg.com>
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#include "kadjustingscrollarea.h"
+
+#include <QApplication>
+#include <QResizeEvent>
+#include <QScreen>
+#include <QScrollBar>
+#include <QVBoxLayout>
+
+KAdjustingScrollArea::KAdjustingScrollArea(QWidget *parent)
+    : QScrollArea{parent}
+{
+    setWidgetResizable(true);
+
+    connect(qApp, &QApplication::focusChanged, this, [this](QWidget *old, QWidget *now) {
+        Q_UNUSED(old);
+        ensureWidgetVisible(now);
+    });
+
+    viewport()->installEventFilter(this);
+}
+
+KAdjustingScrollArea::~KAdjustingScrollArea()
+{
+    viewport()->removeEventFilter(this);
+    if (auto w = widget()) {
+        w->removeEventFilter(this);
+    }
+}
+
+QSize KAdjustingScrollArea::minimumSizeHint() const
+{
+    const int fw = frameWidth();
+    QSize sz{2 * fw, 2 * fw};
+    sz += {widget()->minimumSizeHint().width(), 0};
+    if (verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff) {
+        sz.setWidth(sz.width() + verticalScrollBar()->sizeHint().width());
+    }
+    if (horizontalScrollBarPolicy() != Qt::ScrollBarAlwaysOff) {
+        sz.setHeight(sz.height() + horizontalScrollBar()->sizeHint().height());
+    }
+    return QScrollArea::minimumSizeHint().expandedTo(sz);
+}
+
+QSize KAdjustingScrollArea::sizeHint() const
+{
+    const int fw = frameWidth();
+    QSize sz{2 * fw, 2 * fw};
+    sz += viewportSizeHint();
+    if (verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff) {
+        sz.setWidth(sz.width() + verticalScrollBar()->sizeHint().width());
+    }
+    if (horizontalScrollBarPolicy() != Qt::ScrollBarAlwaysOff) {
+        sz.setHeight(sz.height() + horizontalScrollBar()->sizeHint().height());
+    }
+    sz = QScrollArea::sizeHint().expandedTo(sz);
+    return sz;
+}
+
+static void adjustSizeOfWindowBy(const QSize &extent, QWidget *window)
+{
+    if (window) {
+        const auto currentSize = window->size();
+        // we limit the automatic size adjustment to 2/3 of the screen's size
+        const auto maxWindowSize = window->screen()->geometry().size() * 2 / 3;
+        const auto newWindowSize = currentSize.expandedTo((currentSize + extent).boundedTo(maxWindowSize));
+        if (newWindowSize != currentSize) {
+            window->resize(newWindowSize);
+        }
+    }
+}
+
+bool KAdjustingScrollArea::eventFilter(QObject *obj, QEvent *ev)
+{
+    if (ev->type() == QEvent::ChildAdded && viewport() == obj) {
+        auto childAddedEvent = static_cast<QChildEvent *>(ev);
+        auto widget = childAddedEvent->child();
+        if (widget->objectName().isEmpty()) {
+            widget->setObjectName(QLatin1StringView("scrollarea_widget"));
+        }
+        widget->installEventFilter(this);
+    }
+    if (ev->type() == QEvent::ChildRemoved && viewport() == obj) {
+        auto childRemovedEvent = static_cast<QChildEvent *>(ev);
+        auto widget = childRemovedEvent->child();
+        widget->removeEventFilter(this);
+    }
+    if (ev->type() == QEvent::Resize && obj == widget() && sizeAdjustPolicy() == AdjustToContents) {
+        const auto *const event = static_cast<QResizeEvent *>(ev);
+        if (event->size().height() > event->oldSize().height()) {
+            const auto currentViewportHeight = viewport()->height();
+            const auto wantedViewportHeight = event->size().height();
+            const auto wantedAdditionalHeight = wantedViewportHeight - currentViewportHeight;
+            if (wantedAdditionalHeight > 0) {
+                adjustSizeOfWindowBy(QSize{0, wantedAdditionalHeight}, window());
+            }
+        }
+    }
+    return QScrollArea::eventFilter(obj, ev);
+}
+
+bool KAdjustingScrollArea::event(QEvent *event)
+{
+    return QScrollArea::event(event);
+}
+
+#include "moc_kadjustingscrollarea.cpp"