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/klineediteventhandler.cpp

@@ -0,0 +1,63 @@
+/*
+   SPDX-FileCopyrightText: 2020-2023 Laurent Montel <montel@kde.org>
+   SPDX-FileCopyrightText: 2023 Volker Krause <vkrause@kde.org>
+   SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#include "klineediteventhandler.h"
+#include "klineediturldropeventfilter.h"
+
+#include <QKeyEvent>
+#include <QLineEdit>
+
+class LineEditCatchReturnKey : public QObject
+{
+    Q_OBJECT
+public:
+    explicit LineEditCatchReturnKey(QLineEdit *lineEdit);
+
+protected:
+    bool eventFilter(QObject *obj, QEvent *event) override;
+
+private:
+    QLineEdit *const m_lineEdit;
+};
+
+LineEditCatchReturnKey::LineEditCatchReturnKey(QLineEdit *lineEdit)
+    : QObject(lineEdit)
+    , m_lineEdit(lineEdit)
+{
+    m_lineEdit->installEventFilter(this);
+}
+
+bool LineEditCatchReturnKey::eventFilter(QObject *obj, QEvent *event)
+{
+    if (obj == m_lineEdit) {
+        if (event->type() == QEvent::KeyPress) {
+            auto e = static_cast<QKeyEvent *>(event);
+            if (e->key() == Qt::Key_Return || e->key() == Qt::Key_Enter) {
+                const bool stopEvent = (e->modifiers() == Qt::NoButton || e->modifiers() == Qt::KeypadModifier);
+                if (stopEvent) {
+                    Q_EMIT m_lineEdit->returnPressed();
+                }
+                return true;
+            }
+        }
+    }
+    return QObject::eventFilter(obj, event);
+}
+
+void KLineEditEventHandler::catchReturnKey(QObject *lineEdit)
+{
+    if (auto le = qobject_cast<QLineEdit *>(lineEdit)) {
+        new LineEditCatchReturnKey(le);
+    }
+}
+
+void KLineEditEventHandler::handleUrlDrops(QObject *lineEdit)
+{
+    auto filter = new KLineEditUrlDropEventFilter(lineEdit);
+    lineEdit->installEventFilter(filter);
+}
+
+#include "klineediteventhandler.moc"