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+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtWaylandClient module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef QWAYLANDTEXTINPUTV1_H
+#define QWAYLANDTEXTINPUTV1_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qwaylandtextinputinterface_p.h"
+#include <QtWaylandClient/private/qwayland-text-input-unstable-v1.h>
+#include <qwaylandinputmethodeventbuilder_p.h>
+
+struct wl_callback;
+struct wl_callback_listener;
+
+QT_BEGIN_NAMESPACE
+
+namespace QtWaylandClient {
+
+class QWaylandDisplay;
+
+class QWaylandTextInputv1 : public QtWayland::zwp_text_input_v1, public QWaylandTextInputInterface
+{
+public:
+    QWaylandTextInputv1(QWaylandDisplay *display, struct ::zwp_text_input_v1 *text_input);
+    ~QWaylandTextInputv1() override;
+
+    void setSeat(struct ::wl_seat *seat) { m_seat = seat; }
+
+    void reset() override;
+    void commit() override;
+    void updateState(Qt::InputMethodQueries queries, uint32_t flags) override;
+
+    void setCursorInsidePreedit(int cursor) override;
+
+    bool isInputPanelVisible() const override;
+    QRectF keyboardRect() const override;
+
+    QLocale locale() const override;
+    Qt::LayoutDirection inputDirection() const override;
+
+    void showInputPanel() override
+    {
+        show_input_panel();
+    }
+    void hideInputPanel() override
+    {
+        hide_input_panel();
+    }
+    void enableSurface(::wl_surface *surface) override
+    {
+        activate(m_seat, surface);
+    }
+    void disableSurface(::wl_surface *surface) override
+    {
+        Q_UNUSED(surface);
+        deactivate(m_seat);
+    }
+
+protected:
+    void zwp_text_input_v1_enter(struct ::wl_surface *surface) override;
+    void zwp_text_input_v1_leave() override;
+    void zwp_text_input_v1_modifiers_map(wl_array *map) override;
+    void zwp_text_input_v1_input_panel_state(uint32_t state) override;
+    void zwp_text_input_v1_preedit_string(uint32_t serial, const QString &text, const QString &commit) override;
+    void zwp_text_input_v1_preedit_styling(uint32_t index, uint32_t length, uint32_t style) override;
+    void zwp_text_input_v1_preedit_cursor(int32_t index) override;
+    void zwp_text_input_v1_commit_string(uint32_t serial, const QString &text) override;
+    void zwp_text_input_v1_cursor_position(int32_t index, int32_t anchor) override;
+    void zwp_text_input_v1_delete_surrounding_text(int32_t before_length, uint32_t after_length) override;
+    void zwp_text_input_v1_keysym(uint32_t serial, uint32_t time, uint32_t sym, uint32_t state, uint32_t modifiers) override;
+    void zwp_text_input_v1_language(uint32_t serial, const QString &language) override;
+    void zwp_text_input_v1_text_direction(uint32_t serial, uint32_t direction) override;
+
+private:
+    Qt::KeyboardModifiers modifiersToQtModifiers(uint32_t modifiers);
+
+    QWaylandDisplay *m_display = nullptr;
+    QWaylandInputMethodEventBuilder m_builder;
+
+    QList<Qt::KeyboardModifier> m_modifiersMap;
+
+    uint32_t m_serial = 0;
+    struct ::wl_surface *m_surface = nullptr;
+    struct ::wl_seat *m_seat = nullptr;
+
+    QString m_preeditCommit;
+
+    bool m_inputPanelVisible = false;
+    QRectF m_keyboardRectangle;
+    QLocale m_locale;
+    Qt::LayoutDirection m_inputDirection = Qt::LayoutDirectionAuto;
+
+    struct ::wl_callback *m_resetCallback = nullptr;
+    static const wl_callback_listener callbackListener;
+    static void resetCallback(void *data, struct wl_callback *wl_callback, uint32_t time);
+};
+
+}
+
+QT_END_NAMESPACE
+#endif // QWAYLANDTEXTINPUTV1_H
+