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-kconfigwidgets/source/src/klanguagebutton.h

@@ -0,0 +1,166 @@
+/*
+    klangbutton.h - Button with language selection drop down menu.
+                    Derived from the KLangCombo class by Hans Petter Bieker.
+
+    SPDX-FileCopyrightText: 1999-2003 Hans Petter Bieker <bieker@kde.org>
+    SPDX-FileCopyrightText: 2001 Martijn Klingens <klingens@kde.org>
+    SPDX-FileCopyrightText: 2007 David Jarvie <djarvie@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#ifndef KLANGUAGEBUTTON_H
+#define KLANGUAGEBUTTON_H
+
+#include "kconfigwidgets_export.h"
+#include <QWidget>
+#include <memory>
+
+class QAction;
+class KLanguageButtonPrivate;
+
+/**
+ * @class KLanguageButton klanguagebutton.h KLanguageButton
+ *
+ * KLanguageButton is a pushbutton which allows a language to be selected from
+ * a popup list.
+ *
+ * Languages are identified by their ISO 639-1 codes, e.g. en, pt_BR.
+ *
+ * \image html klanguagebutton.png "KDE Language Selection Widget"
+ *
+ * @author Hans Petter Bieker <bieker@kde.org>, Martijn Klingens <klingens@kde.org>,
+ *         David Jarvie <djarvie@kde.org>
+ */
+class KCONFIGWIDGETS_EXPORT KLanguageButton : public QWidget
+{
+    Q_OBJECT
+
+public:
+    /**
+     * Constructs a button whose text is determined by the current language
+     * in the popup list.
+     *
+     * @param parent the parent of the button
+     */
+    explicit KLanguageButton(QWidget *parent = nullptr);
+
+    /**
+     * Constructs a button with static text.
+     *
+     * @param text the text of the button
+     * @param parent the parent of the button
+     */
+    explicit KLanguageButton(const QString &text, QWidget *parent = nullptr);
+
+    /**
+     * Deconstructor
+     */
+    ~KLanguageButton() override;
+
+    /**
+     * Sets the locale to display language names. By default, QLocale::system().name() is used.
+     *
+     * @param locale locale to use
+     */
+    void setLocale(const QString &locale);
+
+    /**
+     * Sets a static button text.
+     *
+     * @param text button text
+     */
+    void setText(const QString &text);
+
+    /**
+     * Specifies whether language codes should be shown alongside language names
+     * in the popup. Calling this method does not affect any previously
+     * inserted language texts, so it should normally be called before
+     * populating the list.
+     *
+     * @param show true to show codes, false to hide codes
+     */
+    void showLanguageCodes(bool show);
+
+    /**
+     * Load all known languages into the popup list.
+     * The current language in the list is set to the default language for the
+     * current locale (as modified by setLocale()).
+     */
+    void loadAllLanguages();
+
+    /**
+     * Inserts a language into the combo box.
+     * Normally the display name of the language is obtained automatically, but
+     * if either the language code does not exist, or there are special display
+     * requirements, the name of the language can be specified in @p name.
+     *
+     * @param languageCode the code for the language
+     * @param name language name. If empty, the name is obtained automatically.
+     * @param index the insertion position, or -1 to insert in alphabetical order
+     */
+    void insertLanguage(const QString &languageCode, const QString &name = QString(), int index = -1);
+
+    /**
+     * Inserts a separator item into the combo box. A negative index will append the item.
+     *
+     * @param index the insertion position
+     */
+    void insertSeparator(int index = -1);
+
+    /**
+     * Returns the number of items in the combo box.
+     */
+    int count() const;
+
+    /**
+     * Removes all combobox items.
+     */
+    void clear();
+
+    /**
+     * Returns the language code of the combobox's current item.
+     *
+     * @return the current item's language code
+     */
+    QString current() const;
+
+    /**
+     * Checks whether the specified language is in the popup list.
+     *
+     * @param languageCode the language's code
+     * @return true if in the list
+     */
+    bool contains(const QString &languageCode) const;
+
+    /**
+     * Sets a given language to be the current item.
+     *
+     * @param languageCode the language's code
+     */
+    void setCurrentItem(const QString &languageCode);
+
+Q_SIGNALS:
+    /**
+     * This signal is emitted when a new item is activated.
+     *
+     * @param languageCode code of the activated language
+     */
+    void activated(const QString &languageCode);
+    /**
+     * This signal is emitted when a new item is highlighted.
+     *
+     * @param languageCode code of the highlighted language
+     */
+    void highlighted(const QString &languageCode);
+
+private Q_SLOTS:
+    KCONFIGWIDGETS_NO_EXPORT void slotTriggered(QAction *action);
+    KCONFIGWIDGETS_NO_EXPORT void slotHovered(QAction *action);
+
+private:
+    friend class KLanguageButtonPrivate;
+    std::unique_ptr<KLanguageButtonPrivate> const d;
+};
+
+#endif