/*
 * SPDX-FileCopyrightText: 2012~2017 CSSlayer <wengxt@gmail.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */

#include "qtkeytrans.h"
#include "qtkeytransdata.h"
#include <QDebug>
#include <QTextCodec>
#include <ctype.h>
#include <fcitx-utils/key.h>

#define _ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#define _ARRAY_END(a) (a + _ARRAY_SIZE(a))

namespace fcitx {

void qEventToSym(int key, Qt::KeyboardModifiers mod, const QString &text,
                 int &outsym, unsigned int &outstate) {
    int sym = 0;
    fcitx::KeyStates state;
    do {
        if (text.length() <= 0)
            break;
        int uni = text[0].unicode();
        int *result =
            std::lower_bound(unicodeHasKey, _ARRAY_END(unicodeHasKey), uni);
        if (result != _ARRAY_END(unicodeHasKey) && *result == uni) {
            sym = *result + 0x1000000;
            break;
        }

        Unicode2Key *keyMap =
            std::lower_bound(unicodeKeyMap, _ARRAY_END(unicodeKeyMap), uni);
        if (keyMap != _ARRAY_END(unicodeKeyMap) && keyMap->unicode == uni) {
            sym = keyMap->key;
            break;
        }
    } while (0);

    do {
        if (sym)
            break;

        QtCode2Key *result = nullptr;
        if (mod & Qt::KeypadModifier) {
            result = std::lower_bound(keyPadQtCodeToKey,
                                      _ARRAY_END(keyPadQtCodeToKey), key);
            if (result == _ARRAY_END(keyPadQtCodeToKey) ||
                result->qtcode != key)
                result = nullptr;
        } else {
            if (text.isEmpty() || !text[0].isPrint()) {
                result = std::lower_bound(qtCodeToKeyBackup,
                                          _ARRAY_END(qtCodeToKeyBackup), key);
                if (result == _ARRAY_END(qtCodeToKeyBackup) ||
                    result->qtcode != key)
                    result = nullptr;
            }
            if (!result) {
                result =
                    std::lower_bound(qtCodeToKey, _ARRAY_END(qtCodeToKey), key);

                if (result == _ARRAY_END(qtCodeToKey) || result->qtcode != key)
                    result = nullptr;
            }

            if (!result) {
                result = std::lower_bound(keyPadQtCodeToKey,
                                          _ARRAY_END(keyPadQtCodeToKey), key);
                if (result == _ARRAY_END(keyPadQtCodeToKey) ||
                    result->qtcode != key)
                    result = nullptr;
            }
        }

        if (result)
            sym = result->key;

    } while (0);

    state = fcitx::KeyState::NoState;

    if (mod & Qt::CTRL)
        state |= fcitx::KeyState::Ctrl;

    if (mod & Qt::ALT)
        state |= fcitx::KeyState::Alt;

    if (mod & Qt::SHIFT)
        state |= fcitx::KeyState::Shift;

    if (mod & Qt::META)
        state |= fcitx::KeyState::Super;

    outsym = sym;
    outstate = state;
}

// the next lines are taken on 10/2009 from X.org (X11/XF86keysym.h), defining
// some special
// multimedia keys. They are included here as not every system has them.
#define XF86FcitxKey_MonBrightnessUp 0x1008FF02
#define XF86FcitxKey_MonBrightnessDown 0x1008FF03
#define XF86FcitxKey_KbdLightOnOff 0x1008FF04
#define XF86FcitxKey_KbdBrightnessUp 0x1008FF05
#define XF86FcitxKey_KbdBrightnessDown 0x1008FF06
#define XF86FcitxKey_Standby 0x1008FF10
#define XF86FcitxKey_AudioLowerVolume 0x1008FF11
#define XF86FcitxKey_AudioMute 0x1008FF12
#define XF86FcitxKey_AudioRaiseVolume 0x1008FF13
#define XF86FcitxKey_AudioPlay 0x1008FF14
#define XF86FcitxKey_AudioStop 0x1008FF15
#define XF86FcitxKey_AudioPrev 0x1008FF16
#define XF86FcitxKey_AudioNext 0x1008FF17
#define XF86FcitxKey_HomePage 0x1008FF18
#define XF86FcitxKey_Mail 0x1008FF19
#define XF86FcitxKey_Start 0x1008FF1A
#define XF86FcitxKey_Search 0x1008FF1B
#define XF86FcitxKey_AudioRecord 0x1008FF1C
#define XF86FcitxKey_Calculator 0x1008FF1D
#define XF86FcitxKey_Memo 0x1008FF1E
#define XF86FcitxKey_ToDoList 0x1008FF1F
#define XF86FcitxKey_Calendar 0x1008FF20
#define XF86FcitxKey_PowerDown 0x1008FF21
#define XF86FcitxKey_ContrastAdjust 0x1008FF22
#define XF86FcitxKey_Back 0x1008FF26
#define XF86FcitxKey_Forward 0x1008FF27
#define XF86FcitxKey_Stop 0x1008FF28
#define XF86FcitxKey_Refresh 0x1008FF29
#define XF86FcitxKey_PowerOff 0x1008FF2A
#define XF86FcitxKey_WakeUp 0x1008FF2B
#define XF86FcitxKey_Eject 0x1008FF2C
#define XF86FcitxKey_ScreenSaver 0x1008FF2D
#define XF86FcitxKey_WWW 0x1008FF2E
#define XF86FcitxKey_Sleep 0x1008FF2F
#define XF86FcitxKey_Favorites 0x1008FF30
#define XF86FcitxKey_AudioPause 0x1008FF31
#define XF86FcitxKey_AudioMedia 0x1008FF32
#define XF86FcitxKey_MyComputer 0x1008FF33
#define XF86FcitxKey_LightBulb 0x1008FF35
#define XF86FcitxKey_Shop 0x1008FF36
#define XF86FcitxKey_History 0x1008FF37
#define XF86FcitxKey_OpenURL 0x1008FF38
#define XF86FcitxKey_AddFavorite 0x1008FF39
#define XF86FcitxKey_HotLinks 0x1008FF3A
#define XF86FcitxKey_BrightnessAdjust 0x1008FF3B
#define XF86FcitxKey_Finance 0x1008FF3C
#define XF86FcitxKey_Community 0x1008FF3D
#define XF86FcitxKey_AudioRewind 0x1008FF3E
#define XF86FcitxKey_BackForward 0x1008FF3F
#define XF86FcitxKey_Launch0 0x1008FF40
#define XF86FcitxKey_Launch1 0x1008FF41
#define XF86FcitxKey_Launch2 0x1008FF42
#define XF86FcitxKey_Launch3 0x1008FF43
#define XF86FcitxKey_Launch4 0x1008FF44
#define XF86FcitxKey_Launch5 0x1008FF45
#define XF86FcitxKey_Launch6 0x1008FF46
#define XF86FcitxKey_Launch7 0x1008FF47
#define XF86FcitxKey_Launch8 0x1008FF48
#define XF86FcitxKey_Launch9 0x1008FF49
#define XF86FcitxKey_LaunchA 0x1008FF4A
#define XF86FcitxKey_LaunchB 0x1008FF4B
#define XF86FcitxKey_LaunchC 0x1008FF4C
#define XF86FcitxKey_LaunchD 0x1008FF4D
#define XF86FcitxKey_LaunchE 0x1008FF4E
#define XF86FcitxKey_LaunchF 0x1008FF4F
#define XF86FcitxKey_ApplicationLeft 0x1008FF50
#define XF86FcitxKey_ApplicationRight 0x1008FF51
#define XF86FcitxKey_Book 0x1008FF52
#define XF86FcitxKey_CD 0x1008FF53
#define XF86FcitxKey_Calculater 0x1008FF54
#define XF86FcitxKey_Clear 0x1008FF55
#define XF86FcitxKey_ClearGrab 0x1008FE21
#define XF86FcitxKey_Close 0x1008FF56
#define XF86FcitxKey_Copy 0x1008FF57
#define XF86FcitxKey_Cut 0x1008FF58
#define XF86FcitxKey_Display 0x1008FF59
#define XF86FcitxKey_DOS 0x1008FF5A
#define XF86FcitxKey_Documents 0x1008FF5B
#define XF86FcitxKey_Excel 0x1008FF5C
#define XF86FcitxKey_Explorer 0x1008FF5D
#define XF86FcitxKey_Game 0x1008FF5E
#define XF86FcitxKey_Go 0x1008FF5F
#define XF86FcitxKey_iTouch 0x1008FF60
#define XF86FcitxKey_LogOff 0x1008FF61
#define XF86FcitxKey_Market 0x1008FF62
#define XF86FcitxKey_Meeting 0x1008FF63
#define XF86FcitxKey_MenuKB 0x1008FF65
#define XF86FcitxKey_MenuPB 0x1008FF66
#define XF86FcitxKey_MySites 0x1008FF67
#define XF86FcitxKey_News 0x1008FF69
#define XF86FcitxKey_OfficeHome 0x1008FF6A
#define XF86FcitxKey_Option 0x1008FF6C
#define XF86FcitxKey_Paste 0x1008FF6D
#define XF86FcitxKey_Phone 0x1008FF6E
#define XF86FcitxKey_Reply 0x1008FF72
#define XF86FcitxKey_Reload 0x1008FF73
#define XF86FcitxKey_RotateWindows 0x1008FF74
#define XF86FcitxKey_RotationPB 0x1008FF75
#define XF86FcitxKey_RotationKB 0x1008FF76
#define XF86FcitxKey_Save 0x1008FF77
#define XF86FcitxKey_Send 0x1008FF7B
#define XF86FcitxKey_Spell 0x1008FF7C
#define XF86FcitxKey_SplitScreen 0x1008FF7D
#define XF86FcitxKey_Support 0x1008FF7E
#define XF86FcitxKey_TaskPane 0x1008FF7F
#define XF86FcitxKey_Terminal 0x1008FF80
#define XF86FcitxKey_Tools 0x1008FF81
#define XF86FcitxKey_Travel 0x1008FF82
#define XF86FcitxKey_Video 0x1008FF87
#define XF86FcitxKey_Word 0x1008FF89
#define XF86FcitxKey_Xfer 0x1008FF8A
#define XF86FcitxKey_ZoomIn 0x1008FF8B
#define XF86FcitxKey_ZoomOut 0x1008FF8C
#define XF86FcitxKey_Away 0x1008FF8D
#define XF86FcitxKey_Messenger 0x1008FF8E
#define XF86FcitxKey_WebCam 0x1008FF8F
#define XF86FcitxKey_MailForward 0x1008FF90
#define XF86FcitxKey_Pictures 0x1008FF91
#define XF86FcitxKey_Music 0x1008FF92
#define XF86FcitxKey_Battery 0x1008FF93
#define XF86FcitxKey_Bluetooth 0x1008FF94
#define XF86FcitxKey_WLAN 0x1008FF95
#define XF86FcitxKey_UWB 0x1008FF96
#define XF86FcitxKey_AudioForward 0x1008FF97
#define XF86FcitxKey_AudioRepeat 0x1008FF98
#define XF86FcitxKey_AudioRandomPlay 0x1008FF99
#define XF86FcitxKey_Subtitle 0x1008FF9A
#define XF86FcitxKey_AudioCycleTrack 0x1008FF9B
#define XF86FcitxKey_Time 0x1008FF9F
#define XF86FcitxKey_Select 0x1008FFA0
#define XF86FcitxKey_View 0x1008FFA1
#define XF86FcitxKey_TopMenu 0x1008FFA2
#define XF86FcitxKey_Suspend 0x1008FFA7
#define XF86FcitxKey_Hibernate 0x1008FFA8
#define XF86FcitxKey_TouchpadToggle 0x1008FFA9
#define XF86FcitxKey_TouchpadOn 0x1008FFB0
#define XF86FcitxKey_TouchpadOff 0x1008FFB1

// end of XF86keysyms.h

QT_BEGIN_NAMESPACE

// keyboard mapping table
static const unsigned int KeyTbl[] = {

    // misc keys

    FcitxKey_Escape, Qt::Key_Escape, FcitxKey_Tab, Qt::Key_Tab,
    FcitxKey_ISO_Left_Tab, Qt::Key_Backtab, FcitxKey_BackSpace,
    Qt::Key_Backspace, FcitxKey_Return, Qt::Key_Return, FcitxKey_Insert,
    Qt::Key_Insert, FcitxKey_Delete, Qt::Key_Delete, FcitxKey_Clear,
    Qt::Key_Delete, FcitxKey_Pause, Qt::Key_Pause, FcitxKey_Print,
    Qt::Key_Print, 0x1005FF60, Qt::Key_SysReq, // hardcoded Sun SysReq
    0x1007ff00, Qt::Key_SysReq,                // hardcoded X386 SysReq

    // cursor movement

    FcitxKey_Home, Qt::Key_Home, FcitxKey_End, Qt::Key_End, FcitxKey_Left,
    Qt::Key_Left, FcitxKey_Up, Qt::Key_Up, FcitxKey_Right, Qt::Key_Right,
    FcitxKey_Down, Qt::Key_Down, FcitxKey_Prior, Qt::Key_PageUp, FcitxKey_Next,
    Qt::Key_PageDown,

    // modifiers

    FcitxKey_Shift_L, Qt::Key_Shift, FcitxKey_Shift_R, Qt::Key_Shift,
    FcitxKey_Shift_Lock, Qt::Key_Shift, FcitxKey_Control_L, Qt::Key_Control,
    FcitxKey_Control_R, Qt::Key_Control, FcitxKey_Meta_L, Qt::Key_Meta,
    FcitxKey_Meta_R, Qt::Key_Meta, FcitxKey_Alt_L, Qt::Key_Alt, FcitxKey_Alt_R,
    Qt::Key_Alt, FcitxKey_Caps_Lock, Qt::Key_CapsLock, FcitxKey_Num_Lock,
    Qt::Key_NumLock, FcitxKey_Scroll_Lock, Qt::Key_ScrollLock, FcitxKey_Super_L,
    Qt::Key_Super_L, FcitxKey_Super_R, Qt::Key_Super_R, FcitxKey_Menu,
    Qt::Key_Menu, FcitxKey_Hyper_L, Qt::Key_Hyper_L, FcitxKey_Hyper_R,
    Qt::Key_Hyper_R, FcitxKey_Help, Qt::Key_Help, 0x1000FF74,
    Qt::Key_Backtab,         // hardcoded HP backtab
    0x1005FF10, Qt::Key_F11, // hardcoded Sun F36 (labeled F11)
    0x1005FF11, Qt::Key_F12, // hardcoded Sun F37 (labeled F12)

    // numeric and function keypad keys

    FcitxKey_KP_Space, Qt::Key_Space, FcitxKey_KP_Tab, Qt::Key_Tab,
    FcitxKey_KP_Enter, Qt::Key_Enter,
    // FcitxKey_KP_F1,                 Qt::Key_F1,
    // FcitxKey_KP_F2,                 Qt::Key_F2,
    // FcitxKey_KP_F3,                 Qt::Key_F3,
    // FcitxKey_KP_F4,                 Qt::Key_F4,
    FcitxKey_KP_Home, Qt::Key_Home, FcitxKey_KP_Left, Qt::Key_Left,
    FcitxKey_KP_Up, Qt::Key_Up, FcitxKey_KP_Right, Qt::Key_Right,
    FcitxKey_KP_Down, Qt::Key_Down, FcitxKey_KP_Prior, Qt::Key_PageUp,
    FcitxKey_KP_Next, Qt::Key_PageDown, FcitxKey_KP_End, Qt::Key_End,
    FcitxKey_KP_Begin, Qt::Key_Clear, FcitxKey_KP_Insert, Qt::Key_Insert,
    FcitxKey_KP_Delete, Qt::Key_Delete, FcitxKey_KP_Equal, Qt::Key_Equal,
    FcitxKey_KP_Multiply, Qt::Key_Asterisk, FcitxKey_KP_Add, Qt::Key_Plus,
    FcitxKey_KP_Separator, Qt::Key_Comma, FcitxKey_KP_Subtract, Qt::Key_Minus,
    FcitxKey_KP_Decimal, Qt::Key_Period, FcitxKey_KP_Divide, Qt::Key_Slash,

    // International input method support keys

    // International & multi-key character composition
    FcitxKey_ISO_Level3_Shift, Qt::Key_AltGr, FcitxKey_Multi_key,
    Qt::Key_Multi_key, FcitxKey_Codeinput, Qt::Key_Codeinput,
    FcitxKey_SingleCandidate, Qt::Key_SingleCandidate,
    FcitxKey_MultipleCandidate, Qt::Key_MultipleCandidate,
    FcitxKey_PreviousCandidate, Qt::Key_PreviousCandidate,

    // Misc Functions
    FcitxKey_Mode_switch, Qt::Key_Mode_switch, FcitxKey_script_switch,
    Qt::Key_Mode_switch,

    // Japanese keyboard support
    FcitxKey_Kanji, Qt::Key_Kanji, FcitxKey_Muhenkan, Qt::Key_Muhenkan,
    // FcitxKey_Henkan_Mode,       Qt::Key_Henkan_Mode,
    FcitxKey_Henkan_Mode, Qt::Key_Henkan, FcitxKey_Henkan, Qt::Key_Henkan,
    FcitxKey_Romaji, Qt::Key_Romaji, FcitxKey_Hiragana, Qt::Key_Hiragana,
    FcitxKey_Katakana, Qt::Key_Katakana, FcitxKey_Hiragana_Katakana,
    Qt::Key_Hiragana_Katakana, FcitxKey_Zenkaku, Qt::Key_Zenkaku,
    FcitxKey_Hankaku, Qt::Key_Hankaku, FcitxKey_Zenkaku_Hankaku,
    Qt::Key_Zenkaku_Hankaku, FcitxKey_Touroku, Qt::Key_Touroku, FcitxKey_Massyo,
    Qt::Key_Massyo, FcitxKey_Kana_Lock, Qt::Key_Kana_Lock, FcitxKey_Kana_Shift,
    Qt::Key_Kana_Shift, FcitxKey_Eisu_Shift, Qt::Key_Eisu_Shift,
    FcitxKey_Eisu_toggle, Qt::Key_Eisu_toggle,
    // FcitxKey_Kanji_Bangou,      Qt::Key_Kanji_Bangou,
    // FcitxKey_Zen_Koho,      Qt::Key_Zen_Koho,
    // FcitxKey_Mae_Koho,      Qt::Key_Mae_Koho,
    FcitxKey_Kanji_Bangou, Qt::Key_Codeinput, FcitxKey_Zen_Koho,
    Qt::Key_MultipleCandidate, FcitxKey_Mae_Koho, Qt::Key_PreviousCandidate,

#ifdef FcitxKey_KOREAN
    // Korean keyboard support
    FcitxKey_Hangul, Qt::Key_Hangul, FcitxKey_Hangul_Start,
    Qt::Key_Hangul_Start, FcitxKey_Hangul_End, Qt::Key_Hangul_End,
    FcitxKey_Hangul_Hanja, Qt::Key_Hangul_Hanja, FcitxKey_Hangul_Jamo,
    Qt::Key_Hangul_Jamo, FcitxKey_Hangul_Romaja, Qt::Key_Hangul_Romaja,
    // FcitxKey_Hangul_Codeinput,  Qt::Key_Hangul_Codeinput,
    FcitxKey_Hangul_Codeinput, Qt::Key_Codeinput, FcitxKey_Hangul_Jeonja,
    Qt::Key_Hangul_Jeonja, FcitxKey_Hangul_Banja, Qt::Key_Hangul_Banja,
    FcitxKey_Hangul_PreHanja, Qt::Key_Hangul_PreHanja,
    FcitxKey_Hangul_PostHanja, Qt::Key_Hangul_PostHanja,
    // FcitxKey_Hangul_SingleCandidate,Qt::Key_Hangul_SingleCandidate,
    // FcitxKey_Hangul_MultipleCandidate,Qt::Key_Hangul_MultipleCandidate,
    // FcitxKey_Hangul_PreviousCandidate,Qt::Key_Hangul_PreviousCandidate,
    FcitxKey_Hangul_SingleCandidate, Qt::Key_SingleCandidate,
    FcitxKey_Hangul_MultipleCandidate, Qt::Key_MultipleCandidate,
    FcitxKey_Hangul_PreviousCandidate, Qt::Key_PreviousCandidate,
    FcitxKey_Hangul_Special, Qt::Key_Hangul_Special,
    // FcitxKey_Hangul_switch,     Qt::Key_Hangul_switch,
    FcitxKey_Hangul_switch, Qt::Key_Mode_switch,
#endif // FcitxKey_KOREAN

    // dead keys
    FcitxKey_dead_grave, Qt::Key_Dead_Grave, FcitxKey_dead_acute,
    Qt::Key_Dead_Acute, FcitxKey_dead_circumflex, Qt::Key_Dead_Circumflex,
    FcitxKey_dead_tilde, Qt::Key_Dead_Tilde, FcitxKey_dead_macron,
    Qt::Key_Dead_Macron, FcitxKey_dead_breve, Qt::Key_Dead_Breve,
    FcitxKey_dead_abovedot, Qt::Key_Dead_Abovedot, FcitxKey_dead_diaeresis,
    Qt::Key_Dead_Diaeresis, FcitxKey_dead_abovering, Qt::Key_Dead_Abovering,
    FcitxKey_dead_doubleacute, Qt::Key_Dead_Doubleacute, FcitxKey_dead_caron,
    Qt::Key_Dead_Caron, FcitxKey_dead_cedilla, Qt::Key_Dead_Cedilla,
    FcitxKey_dead_ogonek, Qt::Key_Dead_Ogonek, FcitxKey_dead_iota,
    Qt::Key_Dead_Iota, FcitxKey_dead_voiced_sound, Qt::Key_Dead_Voiced_Sound,
    FcitxKey_dead_semivoiced_sound, Qt::Key_Dead_Semivoiced_Sound,
    FcitxKey_dead_belowdot, Qt::Key_Dead_Belowdot, FcitxKey_dead_hook,
    Qt::Key_Dead_Hook, FcitxKey_dead_horn, Qt::Key_Dead_Horn,

    // Special keys from X.org - This include multimedia keys,
    // wireless/bluetooth/uwb keys, special launcher keys, etc.
    XF86FcitxKey_Back, Qt::Key_Back, XF86FcitxKey_Forward, Qt::Key_Forward,
    XF86FcitxKey_Stop, Qt::Key_Stop, XF86FcitxKey_Refresh, Qt::Key_Refresh,
    XF86FcitxKey_Favorites, Qt::Key_Favorites, XF86FcitxKey_AudioMedia,
    Qt::Key_LaunchMedia, XF86FcitxKey_OpenURL, Qt::Key_OpenUrl,
    XF86FcitxKey_HomePage, Qt::Key_HomePage, XF86FcitxKey_Search,
    Qt::Key_Search, XF86FcitxKey_AudioLowerVolume, Qt::Key_VolumeDown,
    XF86FcitxKey_AudioMute, Qt::Key_VolumeMute, XF86FcitxKey_AudioRaiseVolume,
    Qt::Key_VolumeUp, XF86FcitxKey_AudioPlay, Qt::Key_MediaPlay,
    XF86FcitxKey_AudioStop, Qt::Key_MediaStop, XF86FcitxKey_AudioPrev,
    Qt::Key_MediaPrevious, XF86FcitxKey_AudioNext, Qt::Key_MediaNext,
    XF86FcitxKey_AudioRecord, Qt::Key_MediaRecord, XF86FcitxKey_Mail,
    Qt::Key_LaunchMail, XF86FcitxKey_MyComputer,
    Qt::Key_Launch0, // ### Qt 6: remap properly
    XF86FcitxKey_Calculator, Qt::Key_Launch1, XF86FcitxKey_Memo, Qt::Key_Memo,
    XF86FcitxKey_ToDoList, Qt::Key_ToDoList, XF86FcitxKey_Calendar,
    Qt::Key_Calendar, XF86FcitxKey_PowerDown, Qt::Key_PowerDown,
    XF86FcitxKey_ContrastAdjust, Qt::Key_ContrastAdjust, XF86FcitxKey_Standby,
    Qt::Key_Standby, XF86FcitxKey_MonBrightnessUp, Qt::Key_MonBrightnessUp,
    XF86FcitxKey_MonBrightnessDown, Qt::Key_MonBrightnessDown,
    XF86FcitxKey_KbdLightOnOff, Qt::Key_KeyboardLightOnOff,
    XF86FcitxKey_KbdBrightnessUp, Qt::Key_KeyboardBrightnessUp,
    XF86FcitxKey_KbdBrightnessDown, Qt::Key_KeyboardBrightnessDown,
    XF86FcitxKey_PowerOff, Qt::Key_PowerOff, XF86FcitxKey_WakeUp,
    Qt::Key_WakeUp, XF86FcitxKey_Eject, Qt::Key_Eject, XF86FcitxKey_ScreenSaver,
    Qt::Key_ScreenSaver, XF86FcitxKey_WWW, Qt::Key_WWW, XF86FcitxKey_Sleep,
    Qt::Key_Sleep, XF86FcitxKey_LightBulb, Qt::Key_LightBulb, XF86FcitxKey_Shop,
    Qt::Key_Shop, XF86FcitxKey_History, Qt::Key_History,
    XF86FcitxKey_AddFavorite, Qt::Key_AddFavorite, XF86FcitxKey_HotLinks,
    Qt::Key_HotLinks, XF86FcitxKey_BrightnessAdjust, Qt::Key_BrightnessAdjust,
    XF86FcitxKey_Finance, Qt::Key_Finance, XF86FcitxKey_Community,
    Qt::Key_Community, XF86FcitxKey_AudioRewind, Qt::Key_AudioRewind,
    XF86FcitxKey_BackForward, Qt::Key_BackForward, XF86FcitxKey_ApplicationLeft,
    Qt::Key_ApplicationLeft, XF86FcitxKey_ApplicationRight,
    Qt::Key_ApplicationRight, XF86FcitxKey_Book, Qt::Key_Book, XF86FcitxKey_CD,
    Qt::Key_CD, XF86FcitxKey_Calculater, Qt::Key_Calculator, XF86FcitxKey_Clear,
    Qt::Key_Clear, XF86FcitxKey_ClearGrab, Qt::Key_ClearGrab,
    XF86FcitxKey_Close, Qt::Key_Close, XF86FcitxKey_Copy, Qt::Key_Copy,
    XF86FcitxKey_Cut, Qt::Key_Cut, XF86FcitxKey_Display, Qt::Key_Display,
    XF86FcitxKey_DOS, Qt::Key_DOS, XF86FcitxKey_Documents, Qt::Key_Documents,
    XF86FcitxKey_Excel, Qt::Key_Excel, XF86FcitxKey_Explorer, Qt::Key_Explorer,
    XF86FcitxKey_Game, Qt::Key_Game, XF86FcitxKey_Go, Qt::Key_Go,
    XF86FcitxKey_iTouch, Qt::Key_iTouch, XF86FcitxKey_LogOff, Qt::Key_LogOff,
    XF86FcitxKey_Market, Qt::Key_Market, XF86FcitxKey_Meeting, Qt::Key_Meeting,
    XF86FcitxKey_MenuKB, Qt::Key_MenuKB, XF86FcitxKey_MenuPB, Qt::Key_MenuPB,
    XF86FcitxKey_MySites, Qt::Key_MySites, XF86FcitxKey_News, Qt::Key_News,
    XF86FcitxKey_OfficeHome, Qt::Key_OfficeHome, XF86FcitxKey_Option,
    Qt::Key_Option, XF86FcitxKey_Paste, Qt::Key_Paste, XF86FcitxKey_Phone,
    Qt::Key_Phone, XF86FcitxKey_Reply, Qt::Key_Reply, XF86FcitxKey_Reload,
    Qt::Key_Reload, XF86FcitxKey_RotateWindows, Qt::Key_RotateWindows,
    XF86FcitxKey_RotationPB, Qt::Key_RotationPB, XF86FcitxKey_RotationKB,
    Qt::Key_RotationKB, XF86FcitxKey_Save, Qt::Key_Save, XF86FcitxKey_Send,
    Qt::Key_Send, XF86FcitxKey_Spell, Qt::Key_Spell, XF86FcitxKey_SplitScreen,
    Qt::Key_SplitScreen, XF86FcitxKey_Support, Qt::Key_Support,
    XF86FcitxKey_TaskPane, Qt::Key_TaskPane, XF86FcitxKey_Terminal,
    Qt::Key_Terminal, XF86FcitxKey_Tools, Qt::Key_Tools, XF86FcitxKey_Travel,
    Qt::Key_Travel, XF86FcitxKey_Video, Qt::Key_Video, XF86FcitxKey_Word,
    Qt::Key_Word, XF86FcitxKey_Xfer, Qt::Key_Xfer, XF86FcitxKey_ZoomIn,
    Qt::Key_ZoomIn, XF86FcitxKey_ZoomOut, Qt::Key_ZoomOut, XF86FcitxKey_Away,
    Qt::Key_Away, XF86FcitxKey_Messenger, Qt::Key_Messenger,
    XF86FcitxKey_WebCam, Qt::Key_WebCam, XF86FcitxKey_MailForward,
    Qt::Key_MailForward, XF86FcitxKey_Pictures, Qt::Key_Pictures,
    XF86FcitxKey_Music, Qt::Key_Music, XF86FcitxKey_Battery, Qt::Key_Battery,
    XF86FcitxKey_Bluetooth, Qt::Key_Bluetooth, XF86FcitxKey_WLAN, Qt::Key_WLAN,
    XF86FcitxKey_UWB, Qt::Key_UWB, XF86FcitxKey_AudioForward,
    Qt::Key_AudioForward, XF86FcitxKey_AudioRepeat, Qt::Key_AudioRepeat,
    XF86FcitxKey_AudioRandomPlay, Qt::Key_AudioRandomPlay,
    XF86FcitxKey_Subtitle, Qt::Key_Subtitle, XF86FcitxKey_AudioCycleTrack,
    Qt::Key_AudioCycleTrack, XF86FcitxKey_Time, Qt::Key_Time,
    XF86FcitxKey_Select, Qt::Key_Select, XF86FcitxKey_View, Qt::Key_View,
    XF86FcitxKey_TopMenu, Qt::Key_TopMenu, XF86FcitxKey_Bluetooth,
    Qt::Key_Bluetooth, XF86FcitxKey_Suspend, Qt::Key_Suspend,
    XF86FcitxKey_Hibernate, Qt::Key_Hibernate, XF86FcitxKey_Launch0,
    Qt::Key_Launch2, // ### Qt 6: remap properly
    XF86FcitxKey_Launch1, Qt::Key_Launch3, XF86FcitxKey_Launch2,
    Qt::Key_Launch4, XF86FcitxKey_Launch3, Qt::Key_Launch5,
    XF86FcitxKey_Launch4, Qt::Key_Launch6, XF86FcitxKey_Launch5,
    Qt::Key_Launch7, XF86FcitxKey_Launch6, Qt::Key_Launch8,
    XF86FcitxKey_Launch7, Qt::Key_Launch9, XF86FcitxKey_Launch8,
    Qt::Key_LaunchA, XF86FcitxKey_Launch9, Qt::Key_LaunchB,
    XF86FcitxKey_LaunchA, Qt::Key_LaunchC, XF86FcitxKey_LaunchB,
    Qt::Key_LaunchD, XF86FcitxKey_LaunchC, Qt::Key_LaunchE,
    XF86FcitxKey_LaunchD, Qt::Key_LaunchF, XF86FcitxKey_LaunchE,
    Qt::Key_LaunchG, XF86FcitxKey_LaunchF, Qt::Key_LaunchH,

    0, 0};

static const unsigned short katakanaKeysymsToUnicode[] = {
    0x0000, 0x3002, 0x300C, 0x300D, 0x3001, 0x30FB, 0x30F2, 0x30A1,
    0x30A3, 0x30A5, 0x30A7, 0x30A9, 0x30E3, 0x30E5, 0x30E7, 0x30C3,
    0x30FC, 0x30A2, 0x30A4, 0x30A6, 0x30A8, 0x30AA, 0x30AB, 0x30AD,
    0x30AF, 0x30B1, 0x30B3, 0x30B5, 0x30B7, 0x30B9, 0x30BB, 0x30BD,
    0x30BF, 0x30C1, 0x30C4, 0x30C6, 0x30C8, 0x30CA, 0x30CB, 0x30CC,
    0x30CD, 0x30CE, 0x30CF, 0x30D2, 0x30D5, 0x30D8, 0x30DB, 0x30DE,
    0x30DF, 0x30E0, 0x30E1, 0x30E2, 0x30E4, 0x30E6, 0x30E8, 0x30E9,
    0x30EA, 0x30EB, 0x30EC, 0x30ED, 0x30EF, 0x30F3, 0x309B, 0x309C};

static const unsigned short cyrillicKeysymsToUnicode[] = {
    0x0000, 0x0452, 0x0453, 0x0451, 0x0454, 0x0455, 0x0456, 0x0457, 0x0458,
    0x0459, 0x045a, 0x045b, 0x045c, 0x0000, 0x045e, 0x045f, 0x2116, 0x0402,
    0x0403, 0x0401, 0x0404, 0x0405, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a,
    0x040b, 0x040c, 0x0000, 0x040e, 0x040f, 0x044e, 0x0430, 0x0431, 0x0446,
    0x0434, 0x0435, 0x0444, 0x0433, 0x0445, 0x0438, 0x0439, 0x043a, 0x043b,
    0x043c, 0x043d, 0x043e, 0x043f, 0x044f, 0x0440, 0x0441, 0x0442, 0x0443,
    0x0436, 0x0432, 0x044c, 0x044b, 0x0437, 0x0448, 0x044d, 0x0449, 0x0447,
    0x044a, 0x042e, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
    0x0425, 0x0418, 0x0419, 0x041a, 0x041b, 0x041c, 0x041d, 0x041e, 0x041f,
    0x042f, 0x0420, 0x0421, 0x0422, 0x0423, 0x0416, 0x0412, 0x042c, 0x042b,
    0x0417, 0x0428, 0x042d, 0x0429, 0x0427, 0x042a};

static const unsigned short greekKeysymsToUnicode[] = {
    0x0000, 0x0386, 0x0388, 0x0389, 0x038a, 0x03aa, 0x0000, 0x038c, 0x038e,
    0x03ab, 0x0000, 0x038f, 0x0000, 0x0000, 0x0385, 0x2015, 0x0000, 0x03ac,
    0x03ad, 0x03ae, 0x03af, 0x03ca, 0x0390, 0x03cc, 0x03cd, 0x03cb, 0x03b0,
    0x03ce, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0391, 0x0392, 0x0393,
    0x0394, 0x0395, 0x0396, 0x0397, 0x0398, 0x0399, 0x039a, 0x039b, 0x039c,
    0x039d, 0x039e, 0x039f, 0x03a0, 0x03a1, 0x03a3, 0x0000, 0x03a4, 0x03a5,
    0x03a6, 0x03a7, 0x03a8, 0x03a9, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7,
    0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf, 0x03c0,
    0x03c1, 0x03c3, 0x03c2, 0x03c4, 0x03c5, 0x03c6, 0x03c7, 0x03c8, 0x03c9,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000};

static const unsigned short technicalKeysymsToUnicode[] = {
    0x0000, 0x23B7, 0x250C, 0x2500, 0x2320, 0x2321, 0x2502, 0x23A1, 0x23A3,
    0x23A4, 0x23A6, 0x239B, 0x239D, 0x239E, 0x23A0, 0x23A8, 0x23AC, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x2264, 0x2260, 0x2265, 0x222B, 0x2234, 0x221D, 0x221E, 0x0000,
    0x0000, 0x2207, 0x0000, 0x0000, 0x223C, 0x2243, 0x0000, 0x0000, 0x0000,
    0x21D4, 0x21D2, 0x2261, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x221A, 0x0000, 0x0000, 0x0000, 0x2282, 0x2283, 0x2229, 0x222A, 0x2227,
    0x2228, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x2202, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0192, 0x0000, 0x0000, 0x0000,
    0x0000, 0x2190, 0x2191, 0x2192, 0x2193, 0x0000};

static const unsigned short specialKeysymsToUnicode[] = {
    0x25C6, 0x2592, 0x2409, 0x240C, 0x240D, 0x240A, 0x0000, 0x0000,
    0x2424, 0x240B, 0x2518, 0x2510, 0x250C, 0x2514, 0x253C, 0x23BA,
    0x23BB, 0x2500, 0x23BC, 0x23BD, 0x251C, 0x2524, 0x2534, 0x252C,
    0x2502, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000};

static const unsigned short publishingKeysymsToUnicode[] = {
    0x0000, 0x2003, 0x2002, 0x2004, 0x2005, 0x2007, 0x2008, 0x2009, 0x200a,
    0x2014, 0x2013, 0x0000, 0x0000, 0x0000, 0x2026, 0x2025, 0x2153, 0x2154,
    0x2155, 0x2156, 0x2157, 0x2158, 0x2159, 0x215a, 0x2105, 0x0000, 0x0000,
    0x2012, 0x2329, 0x0000, 0x232a, 0x0000, 0x0000, 0x0000, 0x0000, 0x215b,
    0x215c, 0x215d, 0x215e, 0x0000, 0x0000, 0x2122, 0x2613, 0x0000, 0x25c1,
    0x25b7, 0x25cb, 0x25af, 0x2018, 0x2019, 0x201c, 0x201d, 0x211e, 0x0000,
    0x2032, 0x2033, 0x0000, 0x271d, 0x0000, 0x25ac, 0x25c0, 0x25b6, 0x25cf,
    0x25ae, 0x25e6, 0x25ab, 0x25ad, 0x25b3, 0x25bd, 0x2606, 0x2022, 0x25aa,
    0x25b2, 0x25bc, 0x261c, 0x261e, 0x2663, 0x2666, 0x2665, 0x0000, 0x2720,
    0x2020, 0x2021, 0x2713, 0x2717, 0x266f, 0x266d, 0x2642, 0x2640, 0x260e,
    0x2315, 0x2117, 0x2038, 0x201a, 0x201e, 0x0000};

static const unsigned short aplKeysymsToUnicode[] = {
    0x0000, 0x0000, 0x0000, 0x003c, 0x0000, 0x0000, 0x003e, 0x0000, 0x2228,
    0x2227, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00af, 0x0000, 0x22a5, 0x2229,
    0x230a, 0x0000, 0x005f, 0x0000, 0x0000, 0x0000, 0x2218, 0x0000, 0x2395,
    0x0000, 0x22a4, 0x25cb, 0x0000, 0x0000, 0x0000, 0x2308, 0x0000, 0x0000,
    0x222a, 0x0000, 0x2283, 0x0000, 0x2282, 0x0000, 0x22a2, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x22a3, 0x0000, 0x0000, 0x0000};

static const unsigned short koreanKeysymsToUnicode[] = {
    0x0000, 0x3131, 0x3132, 0x3133, 0x3134, 0x3135, 0x3136, 0x3137, 0x3138,
    0x3139, 0x313a, 0x313b, 0x313c, 0x313d, 0x313e, 0x313f, 0x3140, 0x3141,
    0x3142, 0x3143, 0x3144, 0x3145, 0x3146, 0x3147, 0x3148, 0x3149, 0x314a,
    0x314b, 0x314c, 0x314d, 0x314e, 0x314f, 0x3150, 0x3151, 0x3152, 0x3153,
    0x3154, 0x3155, 0x3156, 0x3157, 0x3158, 0x3159, 0x315a, 0x315b, 0x315c,
    0x315d, 0x315e, 0x315f, 0x3160, 0x3161, 0x3162, 0x3163, 0x11a8, 0x11a9,
    0x11aa, 0x11ab, 0x11ac, 0x11ad, 0x11ae, 0x11af, 0x11b0, 0x11b1, 0x11b2,
    0x11b3, 0x11b4, 0x11b5, 0x11b6, 0x11b7, 0x11b8, 0x11b9, 0x11ba, 0x11bb,
    0x11bc, 0x11bd, 0x11be, 0x11bf, 0x11c0, 0x11c1, 0x11c2, 0x316d, 0x3171,
    0x3178, 0x317f, 0x3181, 0x3184, 0x3186, 0x318d, 0x318e, 0x11eb, 0x11f0,
    0x11f9, 0x0000, 0x0000, 0x0000, 0x0000, 0x20a9};

static QChar keysymToUnicode(unsigned char byte3, unsigned char byte4) {
    switch (byte3) {
    case 0x04:
        // katakana
        if (byte4 > 0xa0 && byte4 < 0xe0)
            return QChar(katakanaKeysymsToUnicode[byte4 - 0xa0]);
        else if (byte4 == 0x7e)
            return QChar(0x203e); // Overline
        break;
    case 0x06:
        // russian, use lookup table
        if (byte4 > 0xa0)
            return QChar(cyrillicKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x07:
        // greek
        if (byte4 > 0xa0)
            return QChar(greekKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x08:
        // technical
        if (byte4 > 0xa0)
            return QChar(technicalKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x09:
        // special
        if (byte4 >= 0xe0)
            return QChar(specialKeysymsToUnicode[byte4 - 0xe0]);
        break;
    case 0x0a:
        // publishing
        if (byte4 > 0xa0)
            return QChar(publishingKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x0b:
        // APL
        if (byte4 > 0xa0)
            return QChar(aplKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x0e:
        // Korean
        if (byte4 > 0xa0)
            return QChar(koreanKeysymsToUnicode[byte4 - 0xa0]);
        break;
    default:
        break;
    }
    return QChar(0x0);
}

int translateKeySym(unsigned int key) {
    int code = -1;
    int i = 0; // any other keys
    while (KeyTbl[i]) {
        if (key == KeyTbl[i]) {
            code = (int)KeyTbl[i + 1];
            break;
        }
        i += 2;
    }
    return code;
}

QString translateKeySym(int keysym, fcitx::KeyStates xmodifiers, int &code,
                        Qt::KeyboardModifiers &modifiers, QByteArray &chars,
                        int &count) {
    // all keysyms smaller than 0xff00 are actually keys that can be mapped to
    // unicode chars

    QTextCodec *mapper = QTextCodec::codecForLocale();
    QChar converted;

    if (/*count == 0 &&*/ keysym < 0xff00) {
        unsigned char byte3 = (unsigned char)(keysym >> 8);
        int mib = -1;
        switch (byte3) {
        case 0: // Latin 1
        case 1: // Latin 2
        case 2: // latin 3
        case 3: // latin4
            mib = byte3 + 4;
            break;
        case 5: // arabic
            mib = 82;
            break;
        case 12: // Hebrew
            mib = 85;
            break;
        case 13: // Thai
            mib = 2259;
            break;
        case 4:       // kana
        case 6:       // cyrillic
        case 7:       // greek
        case 8:       // technical, no mapping here at the moment
        case 9:       // Special
        case 10:      // Publishing
        case 11:      // APL
        case 14:      // Korean, no mapping
            mib = -1; // manual conversion
            mapper = 0;
            converted = keysymToUnicode(byte3, keysym & 0xff);
            break;
        case 0x20:
            // currency symbols
            if (keysym >= 0x20a0 && keysym <= 0x20ac) {
                mib = -1; // manual conversion
                mapper = 0;
                converted = static_cast<unsigned int>(keysym);
            }
            break;
        default:
            break;
        }
        if (mib != -1) {
            mapper = QTextCodec::codecForMib(mib);
            if (chars.isEmpty())
                chars.resize(1);
            chars[0] =
                static_cast<unsigned char>(keysym & 0xff); // get only the
                                                           // fourth bit for
                                                           // conversion later
            count = 1;
        }
    } else if (keysym >= 0x1000000 && keysym <= 0x100ffff) {
        converted = (ushort)(keysym - 0x1000000);
        mapper = 0;
    }
    if (count < (int)chars.size() - 1)
        chars[count] = '\0';

    QString text;
    if (!mapper && converted.unicode() != 0x0) {
        text = converted;
    } else if (!chars.isEmpty()) {
        // convert chars (8bit) to text (unicode).
        if (mapper)
            text = mapper->toUnicode(chars.constData(), count, 0);
        if (text.isEmpty()) {
            // no mapper, or codec couldn't convert to unicode (this
            // can happen when running in the C locale or with no LANG
            // set). try converting from latin-1
            text = QString::fromLatin1(chars);
        }
    }

    if (xmodifiers & fcitx::KeyState::Alt) {
        modifiers |= Qt::AltModifier;
    }

    if (xmodifiers & fcitx::KeyState::Shift) {
        modifiers |= Qt::ShiftModifier;
    }

    if (xmodifiers & fcitx::KeyState::Ctrl) {
        modifiers |= Qt::ControlModifier;
    }

    if (xmodifiers & fcitx::KeyState::Super) {
        modifiers |= Qt::MetaModifier;
    }

    // Commentary in X11/keysymdef says that X codes match ASCII, so it
    // is safe to use the locale functions to process X codes in ISO8859-1.
    //
    // This is mainly for compatibility - applications should not use the
    // Qt keycodes between 128 and 255, but should rather use the
    // QKeyEvent::text().
    //
    if (keysym < 128 || (keysym < 256 && (!mapper || mapper->mibEnum() == 4))) {
        // upper-case key, if known
        code = isprint((int)keysym) ? toupper((int)keysym) : 0;
    } else if (keysym >= FcitxKey_F1 && keysym <= FcitxKey_F35) {
        // function keys
        code = Qt::Key_F1 + ((int)keysym - FcitxKey_F1);
    } else if (keysym >= FcitxKey_KP_Space && keysym <= FcitxKey_KP_9) {
        if (keysym >= FcitxKey_KP_0) {
            // numeric keypad keys
            code = Qt::Key_0 + ((int)keysym - FcitxKey_KP_0);
        } else {
            code = translateKeySym(keysym);
        }
        modifiers |= Qt::KeypadModifier;
    } else if (text.length() == 1 && text.unicode()->unicode() > 0x1f &&
               text.unicode()->unicode() != 0x7f &&
               !(keysym >= FcitxKey_dead_grave &&
                 keysym <= FcitxKey_dead_horn)) {
        code = text.unicode()->toUpper().unicode();
    } else {
        // any other keys
        code = translateKeySym(keysym);

        if (code == Qt::Key_Tab && (modifiers & Qt::ShiftModifier)) {
            // map shift+tab to shift+backtab, QShortcutMap knows about it
            // and will handle it.
            code = Qt::Key_Backtab;
            text = QString();
        }
    }

    return text;
}

bool symToKeyQt(int sym, unsigned int state, int &qtcode,
                Qt::KeyboardModifiers &mod) {
    QByteArray chars;
    int count = 0;

    translateKeySym(sym, fcitx::KeyStates(state), qtcode, mod, chars, count);

    return qtcode >= 0;
}

bool keyQtToSym(int qtcode, Qt::KeyboardModifiers mod, int &sym,
                unsigned int &state) {
    return keyQtToSym(qtcode, mod, QString(), sym, state);
}

bool keyQtToSym(int qtcode, Qt::KeyboardModifiers mod, const QString &text,
                int &sym, unsigned int &state) {
    qEventToSym(qtcode, mod, text, sym, state);

    return sym >= 0;
}
} // namespace fcitx