qohosinputmethodproxy.h

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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QOHOSINPUTMETHODPROXY_H
#define QOHOSINPUTMETHODPROXY_H
 
#include <QtCore/qglobal.h>
#include <QtCore/qrect.h>
#include <functional>
#include <inputmethod/inputmethod_controller_capi.h>
#include <memory>
 
QT_BEGIN_NAMESPACE
 
class QOhosInputMethodProxy
{
public:
    class ClientCallbacks
    {
    public:
        virtual ~ClientCallbacks();
 
        virtual void onInsertText(std::string text) = 0;
        virtual void onInsertPreviewText(std::string text) = 0;
        virtual void onDeleteForward(int length) = 0;
        virtual void onDeleteBackward(int length) = 0;
        virtual void onSendKeyboardStatus(::InputMethod_KeyboardStatus keyboardStatus) = 0;
        virtual void onSendEnterKey(::InputMethod_EnterKeyType enterKeyType) = 0;
        virtual void onMoveCursor(::InputMethod_Direction direction) = 0;
 
    protected:
        ClientCallbacks();
    };
 
    QOhosInputMethodProxy(
        std::shared_ptr<ClientCallbacks> clientCallbacks,
        ::InputMethod_RequestKeyboardReason requestKeyboardReason);
    bool hasAttachedSuccessfully();
 
    void showTextInput(::InputMethod_RequestKeyboardReason requestKeyboardReason);
    void notifyConfigurationChange(
        ::InputMethod_EnterKeyType enterKeyType, ::InputMethod_TextInputType textInputType);
    void notifyCursorUpdate(const QRectF &cursorRect);
 
private:
    struct JsScopeData
    {
        struct JsTextEditorProxyData
        {
            bool textInputShown = false;
        };
 
        std::shared_ptr<::InputMethod_TextEditorProxy> textEditorProxy;
        std::shared_ptr<JsTextEditorProxyData> textEditorProxyData;
        std::shared_ptr<::InputMethod_InputMethodProxy> inputMethodProxy;
        std::shared_ptr<void> callbacksRegistrationHandle;
    };
 
    std::shared_ptr<void> registerCallbacks(
        std::shared_ptr<::InputMethod_TextEditorProxy> textEditorProxy,
        std::shared_ptr<JsScopeData::JsTextEditorProxyData> textEditorProxyData,
        std::weak_ptr<QOhosInputMethodProxy::ClientCallbacks> weakClientCallbacks);
 
    std::shared_ptr<ClientCallbacks> m_clientCallbacks;
    std::shared_ptr<JsScopeData> m_jsScopeData;
};
 
QT_END_NAMESPACE
 
#endif // QOHOSINPUTMETHODPROXY_H