1// Copyright (C) 2019 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qxkbcommon_p.h"
5
6#include <private/qmakearray_p.h>
7
8#include <QtCore/private/qstringiterator_p.h>
9#include <QtCore/qvarlengtharray.h>
10#include <QtCore/QMetaMethod>
11
12#include <QtGui/QKeyEvent>
13#include <QtGui/private/qguiapplication_p.h>
14
15#include <qpa/qplatforminputcontext.h>
16#include <qpa/qplatformintegration.h>
17
18QT_BEGIN_NAMESPACE
19
20Q_LOGGING_CATEGORY(lcXkbcommon, "qt.xkbcommon")
21
22static int keysymToQtKey_internal(xkb_keysym_t keysym, Qt::KeyboardModifiers modifiers,
23 xkb_state *state, xkb_keycode_t code,
24 bool superAsMeta, bool hyperAsMeta);
25
26typedef struct xkb2qt
27{
28 unsigned int xkb;
29 unsigned int qt;
30
31 constexpr bool operator <=(const xkb2qt &that) const noexcept
32 {
33 return xkb <= that.xkb;
34 }
35
36 constexpr bool operator <(const xkb2qt &that) const noexcept
37 {
38 return xkb < that.xkb;
39 }
40} xkb2qt_t;
41
42template<std::size_t Xkb, std::size_t Qt>
43struct Xkb2Qt
44{
45 using Type = xkb2qt_t;
46 static constexpr Type data() noexcept { return Type{.xkb: Xkb, .qt: Qt}; }
47};
48
49static constexpr const auto KeyTbl = qMakeArray(
50 QSortedData<
51 // misc keys
52
53 Xkb2Qt<XKB_KEY_Escape, Qt::Key_Escape>,
54 Xkb2Qt<XKB_KEY_Tab, Qt::Key_Tab>,
55 Xkb2Qt<XKB_KEY_ISO_Left_Tab, Qt::Key_Backtab>,
56 Xkb2Qt<XKB_KEY_BackSpace, Qt::Key_Backspace>,
57 Xkb2Qt<XKB_KEY_Return, Qt::Key_Return>,
58 Xkb2Qt<XKB_KEY_Insert, Qt::Key_Insert>,
59 Xkb2Qt<XKB_KEY_Delete, Qt::Key_Delete>,
60 Xkb2Qt<XKB_KEY_Clear, Qt::Key_Delete>,
61 Xkb2Qt<XKB_KEY_Pause, Qt::Key_Pause>,
62 Xkb2Qt<XKB_KEY_Print, Qt::Key_Print>,
63 Xkb2Qt<XKB_KEY_Sys_Req, Qt::Key_SysReq>,
64 Xkb2Qt<0x1005FF60, Qt::Key_SysReq>, // hardcoded Sun SysReq
65 Xkb2Qt<0x1007ff00, Qt::Key_SysReq>, // hardcoded X386 SysReq
66
67 // cursor movement
68
69 Xkb2Qt<XKB_KEY_Home, Qt::Key_Home>,
70 Xkb2Qt<XKB_KEY_End, Qt::Key_End>,
71 Xkb2Qt<XKB_KEY_Left, Qt::Key_Left>,
72 Xkb2Qt<XKB_KEY_Up, Qt::Key_Up>,
73 Xkb2Qt<XKB_KEY_Right, Qt::Key_Right>,
74 Xkb2Qt<XKB_KEY_Down, Qt::Key_Down>,
75 Xkb2Qt<XKB_KEY_Prior, Qt::Key_PageUp>,
76 Xkb2Qt<XKB_KEY_Next, Qt::Key_PageDown>,
77
78 // modifiers
79
80 Xkb2Qt<XKB_KEY_Shift_L, Qt::Key_Shift>,
81 Xkb2Qt<XKB_KEY_Shift_R, Qt::Key_Shift>,
82 Xkb2Qt<XKB_KEY_Shift_Lock, Qt::Key_Shift>,
83 Xkb2Qt<XKB_KEY_Control_L, Qt::Key_Control>,
84 Xkb2Qt<XKB_KEY_Control_R, Qt::Key_Control>,
85 Xkb2Qt<XKB_KEY_Meta_L, Qt::Key_Meta>,
86 Xkb2Qt<XKB_KEY_Meta_R, Qt::Key_Meta>,
87 Xkb2Qt<XKB_KEY_Alt_L, Qt::Key_Alt>,
88 Xkb2Qt<XKB_KEY_Alt_R, Qt::Key_Alt>,
89 Xkb2Qt<XKB_KEY_Caps_Lock, Qt::Key_CapsLock>,
90 Xkb2Qt<XKB_KEY_Num_Lock, Qt::Key_NumLock>,
91 Xkb2Qt<XKB_KEY_Scroll_Lock, Qt::Key_ScrollLock>,
92 Xkb2Qt<XKB_KEY_Super_L, Qt::Key_Super_L>,
93 Xkb2Qt<XKB_KEY_Super_R, Qt::Key_Super_R>,
94 Xkb2Qt<XKB_KEY_Menu, Qt::Key_Menu>,
95 Xkb2Qt<XKB_KEY_Hyper_L, Qt::Key_Hyper_L>,
96 Xkb2Qt<XKB_KEY_Hyper_R, Qt::Key_Hyper_R>,
97 Xkb2Qt<XKB_KEY_Help, Qt::Key_Help>,
98 Xkb2Qt<0x1000FF74, Qt::Key_Backtab>, // hardcoded HP backtab
99 Xkb2Qt<0x1005FF10, Qt::Key_F11>, // hardcoded Sun F36 (labeled F11)
100 Xkb2Qt<0x1005FF11, Qt::Key_F12>, // hardcoded Sun F37 (labeled F12)
101
102 // numeric and function keypad keys
103
104 Xkb2Qt<XKB_KEY_KP_Space, Qt::Key_Space>,
105 Xkb2Qt<XKB_KEY_KP_Tab, Qt::Key_Tab>,
106 Xkb2Qt<XKB_KEY_KP_Enter, Qt::Key_Enter>,
107 Xkb2Qt<XKB_KEY_KP_Home, Qt::Key_Home>,
108 Xkb2Qt<XKB_KEY_KP_Left, Qt::Key_Left>,
109 Xkb2Qt<XKB_KEY_KP_Up, Qt::Key_Up>,
110 Xkb2Qt<XKB_KEY_KP_Right, Qt::Key_Right>,
111 Xkb2Qt<XKB_KEY_KP_Down, Qt::Key_Down>,
112 Xkb2Qt<XKB_KEY_KP_Prior, Qt::Key_PageUp>,
113 Xkb2Qt<XKB_KEY_KP_Next, Qt::Key_PageDown>,
114 Xkb2Qt<XKB_KEY_KP_End, Qt::Key_End>,
115 Xkb2Qt<XKB_KEY_KP_Begin, Qt::Key_Clear>,
116 Xkb2Qt<XKB_KEY_KP_Insert, Qt::Key_Insert>,
117 Xkb2Qt<XKB_KEY_KP_Delete, Qt::Key_Delete>,
118 Xkb2Qt<XKB_KEY_KP_Equal, Qt::Key_Equal>,
119 Xkb2Qt<XKB_KEY_KP_Multiply, Qt::Key_Asterisk>,
120 Xkb2Qt<XKB_KEY_KP_Add, Qt::Key_Plus>,
121 Xkb2Qt<XKB_KEY_KP_Separator, Qt::Key_Comma>,
122 Xkb2Qt<XKB_KEY_KP_Subtract, Qt::Key_Minus>,
123 Xkb2Qt<XKB_KEY_KP_Decimal, Qt::Key_Period>,
124 Xkb2Qt<XKB_KEY_KP_Divide, Qt::Key_Slash>,
125
126 // special non-XF86 function keys
127
128 Xkb2Qt<XKB_KEY_Undo, Qt::Key_Undo>,
129 Xkb2Qt<XKB_KEY_Redo, Qt::Key_Redo>,
130 Xkb2Qt<XKB_KEY_Find, Qt::Key_Find>,
131 Xkb2Qt<XKB_KEY_Cancel, Qt::Key_Cancel>,
132
133 // International input method support keys
134
135 // International & multi-key character composition
136 Xkb2Qt<XKB_KEY_ISO_Level3_Shift, Qt::Key_AltGr>,
137 Xkb2Qt<XKB_KEY_Multi_key, Qt::Key_Multi_key>,
138 Xkb2Qt<XKB_KEY_Codeinput, Qt::Key_Codeinput>,
139 Xkb2Qt<XKB_KEY_SingleCandidate, Qt::Key_SingleCandidate>,
140 Xkb2Qt<XKB_KEY_MultipleCandidate, Qt::Key_MultipleCandidate>,
141 Xkb2Qt<XKB_KEY_PreviousCandidate, Qt::Key_PreviousCandidate>,
142
143 // Misc Functions
144 Xkb2Qt<XKB_KEY_Mode_switch, Qt::Key_Mode_switch>,
145 Xkb2Qt<XKB_KEY_script_switch, Qt::Key_Mode_switch>,
146
147 // Japanese keyboard support
148 Xkb2Qt<XKB_KEY_Kanji, Qt::Key_Kanji>,
149 Xkb2Qt<XKB_KEY_Muhenkan, Qt::Key_Muhenkan>,
150 //Xkb2Qt<XKB_KEY_Henkan_Mode, Qt::Key_Henkan_Mode>,
151 Xkb2Qt<XKB_KEY_Henkan_Mode, Qt::Key_Henkan>,
152 Xkb2Qt<XKB_KEY_Henkan, Qt::Key_Henkan>,
153 Xkb2Qt<XKB_KEY_Romaji, Qt::Key_Romaji>,
154 Xkb2Qt<XKB_KEY_Hiragana, Qt::Key_Hiragana>,
155 Xkb2Qt<XKB_KEY_Katakana, Qt::Key_Katakana>,
156 Xkb2Qt<XKB_KEY_Hiragana_Katakana, Qt::Key_Hiragana_Katakana>,
157 Xkb2Qt<XKB_KEY_Zenkaku, Qt::Key_Zenkaku>,
158 Xkb2Qt<XKB_KEY_Hankaku, Qt::Key_Hankaku>,
159 Xkb2Qt<XKB_KEY_Zenkaku_Hankaku, Qt::Key_Zenkaku_Hankaku>,
160 Xkb2Qt<XKB_KEY_Touroku, Qt::Key_Touroku>,
161 Xkb2Qt<XKB_KEY_Massyo, Qt::Key_Massyo>,
162 Xkb2Qt<XKB_KEY_Kana_Lock, Qt::Key_Kana_Lock>,
163 Xkb2Qt<XKB_KEY_Kana_Shift, Qt::Key_Kana_Shift>,
164 Xkb2Qt<XKB_KEY_Eisu_Shift, Qt::Key_Eisu_Shift>,
165 Xkb2Qt<XKB_KEY_Eisu_toggle, Qt::Key_Eisu_toggle>,
166 //Xkb2Qt<XKB_KEY_Kanji_Bangou, Qt::Key_Kanji_Bangou>,
167 //Xkb2Qt<XKB_KEY_Zen_Koho, Qt::Key_Zen_Koho>,
168 //Xkb2Qt<XKB_KEY_Mae_Koho, Qt::Key_Mae_Koho>,
169 Xkb2Qt<XKB_KEY_Kanji_Bangou, Qt::Key_Codeinput>,
170 Xkb2Qt<XKB_KEY_Zen_Koho, Qt::Key_MultipleCandidate>,
171 Xkb2Qt<XKB_KEY_Mae_Koho, Qt::Key_PreviousCandidate>,
172
173 // Korean keyboard support
174 Xkb2Qt<XKB_KEY_Hangul, Qt::Key_Hangul>,
175 Xkb2Qt<XKB_KEY_Hangul_Start, Qt::Key_Hangul_Start>,
176 Xkb2Qt<XKB_KEY_Hangul_End, Qt::Key_Hangul_End>,
177 Xkb2Qt<XKB_KEY_Hangul_Hanja, Qt::Key_Hangul_Hanja>,
178 Xkb2Qt<XKB_KEY_Hangul_Jamo, Qt::Key_Hangul_Jamo>,
179 Xkb2Qt<XKB_KEY_Hangul_Romaja, Qt::Key_Hangul_Romaja>,
180 //Xkb2Qt<XKB_KEY_Hangul_Codeinput, Qt::Key_Hangul_Codeinput>,
181 Xkb2Qt<XKB_KEY_Hangul_Codeinput, Qt::Key_Codeinput>,
182 Xkb2Qt<XKB_KEY_Hangul_Jeonja, Qt::Key_Hangul_Jeonja>,
183 Xkb2Qt<XKB_KEY_Hangul_Banja, Qt::Key_Hangul_Banja>,
184 Xkb2Qt<XKB_KEY_Hangul_PreHanja, Qt::Key_Hangul_PreHanja>,
185 Xkb2Qt<XKB_KEY_Hangul_PostHanja, Qt::Key_Hangul_PostHanja>,
186 //Xkb2Qt<XKB_KEY_Hangul_SingleCandidate,Qt::Key_Hangul_SingleCandidate>,
187 //Xkb2Qt<XKB_KEY_Hangul_MultipleCandidate,Qt::Key_Hangul_MultipleCandidate>,
188 //Xkb2Qt<XKB_KEY_Hangul_PreviousCandidate,Qt::Key_Hangul_PreviousCandidate>,
189 Xkb2Qt<XKB_KEY_Hangul_SingleCandidate, Qt::Key_SingleCandidate>,
190 Xkb2Qt<XKB_KEY_Hangul_MultipleCandidate,Qt::Key_MultipleCandidate>,
191 Xkb2Qt<XKB_KEY_Hangul_PreviousCandidate,Qt::Key_PreviousCandidate>,
192 Xkb2Qt<XKB_KEY_Hangul_Special, Qt::Key_Hangul_Special>,
193 //Xkb2Qt<XKB_KEY_Hangul_switch, Qt::Key_Hangul_switch>,
194 Xkb2Qt<XKB_KEY_Hangul_switch, Qt::Key_Mode_switch>,
195
196 // dead keys
197 Xkb2Qt<XKB_KEY_dead_grave, Qt::Key_Dead_Grave>,
198 Xkb2Qt<XKB_KEY_dead_acute, Qt::Key_Dead_Acute>,
199 Xkb2Qt<XKB_KEY_dead_circumflex, Qt::Key_Dead_Circumflex>,
200 Xkb2Qt<XKB_KEY_dead_tilde, Qt::Key_Dead_Tilde>,
201 Xkb2Qt<XKB_KEY_dead_macron, Qt::Key_Dead_Macron>,
202 Xkb2Qt<XKB_KEY_dead_breve, Qt::Key_Dead_Breve>,
203 Xkb2Qt<XKB_KEY_dead_abovedot, Qt::Key_Dead_Abovedot>,
204 Xkb2Qt<XKB_KEY_dead_diaeresis, Qt::Key_Dead_Diaeresis>,
205 Xkb2Qt<XKB_KEY_dead_abovering, Qt::Key_Dead_Abovering>,
206 Xkb2Qt<XKB_KEY_dead_doubleacute, Qt::Key_Dead_Doubleacute>,
207 Xkb2Qt<XKB_KEY_dead_caron, Qt::Key_Dead_Caron>,
208 Xkb2Qt<XKB_KEY_dead_cedilla, Qt::Key_Dead_Cedilla>,
209 Xkb2Qt<XKB_KEY_dead_ogonek, Qt::Key_Dead_Ogonek>,
210 Xkb2Qt<XKB_KEY_dead_iota, Qt::Key_Dead_Iota>,
211 Xkb2Qt<XKB_KEY_dead_voiced_sound, Qt::Key_Dead_Voiced_Sound>,
212 Xkb2Qt<XKB_KEY_dead_semivoiced_sound, Qt::Key_Dead_Semivoiced_Sound>,
213 Xkb2Qt<XKB_KEY_dead_belowdot, Qt::Key_Dead_Belowdot>,
214 Xkb2Qt<XKB_KEY_dead_hook, Qt::Key_Dead_Hook>,
215 Xkb2Qt<XKB_KEY_dead_horn, Qt::Key_Dead_Horn>,
216 Xkb2Qt<XKB_KEY_dead_stroke, Qt::Key_Dead_Stroke>,
217 Xkb2Qt<XKB_KEY_dead_abovecomma, Qt::Key_Dead_Abovecomma>,
218 Xkb2Qt<XKB_KEY_dead_abovereversedcomma, Qt::Key_Dead_Abovereversedcomma>,
219 Xkb2Qt<XKB_KEY_dead_doublegrave, Qt::Key_Dead_Doublegrave>,
220 Xkb2Qt<XKB_KEY_dead_belowring, Qt::Key_Dead_Belowring>,
221 Xkb2Qt<XKB_KEY_dead_belowmacron, Qt::Key_Dead_Belowmacron>,
222 Xkb2Qt<XKB_KEY_dead_belowcircumflex, Qt::Key_Dead_Belowcircumflex>,
223 Xkb2Qt<XKB_KEY_dead_belowtilde, Qt::Key_Dead_Belowtilde>,
224 Xkb2Qt<XKB_KEY_dead_belowbreve, Qt::Key_Dead_Belowbreve>,
225 Xkb2Qt<XKB_KEY_dead_belowdiaeresis, Qt::Key_Dead_Belowdiaeresis>,
226 Xkb2Qt<XKB_KEY_dead_invertedbreve, Qt::Key_Dead_Invertedbreve>,
227 Xkb2Qt<XKB_KEY_dead_belowcomma, Qt::Key_Dead_Belowcomma>,
228 Xkb2Qt<XKB_KEY_dead_currency, Qt::Key_Dead_Currency>,
229 Xkb2Qt<XKB_KEY_dead_a, Qt::Key_Dead_a>,
230 Xkb2Qt<XKB_KEY_dead_A, Qt::Key_Dead_A>,
231 Xkb2Qt<XKB_KEY_dead_e, Qt::Key_Dead_e>,
232 Xkb2Qt<XKB_KEY_dead_E, Qt::Key_Dead_E>,
233 Xkb2Qt<XKB_KEY_dead_i, Qt::Key_Dead_i>,
234 Xkb2Qt<XKB_KEY_dead_I, Qt::Key_Dead_I>,
235 Xkb2Qt<XKB_KEY_dead_o, Qt::Key_Dead_o>,
236 Xkb2Qt<XKB_KEY_dead_O, Qt::Key_Dead_O>,
237 Xkb2Qt<XKB_KEY_dead_u, Qt::Key_Dead_u>,
238 Xkb2Qt<XKB_KEY_dead_U, Qt::Key_Dead_U>,
239 Xkb2Qt<XKB_KEY_dead_small_schwa, Qt::Key_Dead_Small_Schwa>,
240 Xkb2Qt<XKB_KEY_dead_capital_schwa, Qt::Key_Dead_Capital_Schwa>,
241 Xkb2Qt<XKB_KEY_dead_greek, Qt::Key_Dead_Greek>,
242 Xkb2Qt<XKB_KEY_dead_lowline, Qt::Key_Dead_Lowline>,
243 Xkb2Qt<XKB_KEY_dead_aboveverticalline, Qt::Key_Dead_Aboveverticalline>,
244 Xkb2Qt<XKB_KEY_dead_belowverticalline, Qt::Key_Dead_Belowverticalline>,
245 Xkb2Qt<XKB_KEY_dead_longsolidusoverlay, Qt::Key_Dead_Longsolidusoverlay>,
246
247 // Special keys from X.org - This include multimedia keys,
248 // wireless/bluetooth/uwb keys, special launcher keys, etc.
249 Xkb2Qt<XKB_KEY_XF86Back, Qt::Key_Back>,
250 Xkb2Qt<XKB_KEY_XF86Forward, Qt::Key_Forward>,
251 Xkb2Qt<XKB_KEY_XF86Stop, Qt::Key_Stop>,
252 Xkb2Qt<XKB_KEY_XF86Refresh, Qt::Key_Refresh>,
253 Xkb2Qt<XKB_KEY_XF86Favorites, Qt::Key_Favorites>,
254 Xkb2Qt<XKB_KEY_XF86AudioMedia, Qt::Key_LaunchMedia>,
255 Xkb2Qt<XKB_KEY_XF86OpenURL, Qt::Key_OpenUrl>,
256 Xkb2Qt<XKB_KEY_XF86HomePage, Qt::Key_HomePage>,
257 Xkb2Qt<XKB_KEY_XF86Search, Qt::Key_Search>,
258 Xkb2Qt<XKB_KEY_XF86AudioLowerVolume, Qt::Key_VolumeDown>,
259 Xkb2Qt<XKB_KEY_XF86AudioMute, Qt::Key_VolumeMute>,
260 Xkb2Qt<XKB_KEY_XF86AudioRaiseVolume, Qt::Key_VolumeUp>,
261 Xkb2Qt<XKB_KEY_XF86AudioPlay, Qt::Key_MediaPlay>,
262 Xkb2Qt<XKB_KEY_XF86AudioStop, Qt::Key_MediaStop>,
263 Xkb2Qt<XKB_KEY_XF86AudioPrev, Qt::Key_MediaPrevious>,
264 Xkb2Qt<XKB_KEY_XF86AudioNext, Qt::Key_MediaNext>,
265 Xkb2Qt<XKB_KEY_XF86AudioRecord, Qt::Key_MediaRecord>,
266 Xkb2Qt<XKB_KEY_XF86AudioPause, Qt::Key_MediaPause>,
267 Xkb2Qt<XKB_KEY_XF86Mail, Qt::Key_LaunchMail>,
268 Xkb2Qt<XKB_KEY_XF86MyComputer, Qt::Key_LaunchMedia>,
269 Xkb2Qt<XKB_KEY_XF86Memo, Qt::Key_Memo>,
270 Xkb2Qt<XKB_KEY_XF86ToDoList, Qt::Key_ToDoList>,
271 Xkb2Qt<XKB_KEY_XF86Calendar, Qt::Key_Calendar>,
272 Xkb2Qt<XKB_KEY_XF86PowerDown, Qt::Key_PowerDown>,
273 Xkb2Qt<XKB_KEY_XF86ContrastAdjust, Qt::Key_ContrastAdjust>,
274 Xkb2Qt<XKB_KEY_XF86Standby, Qt::Key_Standby>,
275 Xkb2Qt<XKB_KEY_XF86MonBrightnessUp, Qt::Key_MonBrightnessUp>,
276 Xkb2Qt<XKB_KEY_XF86MonBrightnessDown, Qt::Key_MonBrightnessDown>,
277 Xkb2Qt<XKB_KEY_XF86KbdLightOnOff, Qt::Key_KeyboardLightOnOff>,
278 Xkb2Qt<XKB_KEY_XF86KbdBrightnessUp, Qt::Key_KeyboardBrightnessUp>,
279 Xkb2Qt<XKB_KEY_XF86KbdBrightnessDown, Qt::Key_KeyboardBrightnessDown>,
280 Xkb2Qt<XKB_KEY_XF86PowerOff, Qt::Key_PowerOff>,
281 Xkb2Qt<XKB_KEY_XF86WakeUp, Qt::Key_WakeUp>,
282 Xkb2Qt<XKB_KEY_XF86Eject, Qt::Key_Eject>,
283 Xkb2Qt<XKB_KEY_XF86ScreenSaver, Qt::Key_ScreenSaver>,
284 Xkb2Qt<XKB_KEY_XF86WWW, Qt::Key_WWW>,
285 Xkb2Qt<XKB_KEY_XF86Sleep, Qt::Key_Sleep>,
286 Xkb2Qt<XKB_KEY_XF86LightBulb, Qt::Key_LightBulb>,
287 Xkb2Qt<XKB_KEY_XF86Shop, Qt::Key_Shop>,
288 Xkb2Qt<XKB_KEY_XF86History, Qt::Key_History>,
289 Xkb2Qt<XKB_KEY_XF86AddFavorite, Qt::Key_AddFavorite>,
290 Xkb2Qt<XKB_KEY_XF86HotLinks, Qt::Key_HotLinks>,
291 Xkb2Qt<XKB_KEY_XF86BrightnessAdjust, Qt::Key_BrightnessAdjust>,
292 Xkb2Qt<XKB_KEY_XF86Finance, Qt::Key_Finance>,
293 Xkb2Qt<XKB_KEY_XF86Community, Qt::Key_Community>,
294 Xkb2Qt<XKB_KEY_XF86AudioRewind, Qt::Key_AudioRewind>,
295 Xkb2Qt<XKB_KEY_XF86BackForward, Qt::Key_BackForward>,
296 Xkb2Qt<XKB_KEY_XF86ApplicationLeft, Qt::Key_ApplicationLeft>,
297 Xkb2Qt<XKB_KEY_XF86ApplicationRight, Qt::Key_ApplicationRight>,
298 Xkb2Qt<XKB_KEY_XF86Book, Qt::Key_Book>,
299 Xkb2Qt<XKB_KEY_XF86CD, Qt::Key_CD>,
300 Xkb2Qt<XKB_KEY_XF86Calculater, Qt::Key_Calculator>,
301 Xkb2Qt<XKB_KEY_XF86Clear, Qt::Key_Clear>,
302 Xkb2Qt<XKB_KEY_XF86ClearGrab, Qt::Key_ClearGrab>,
303 Xkb2Qt<XKB_KEY_XF86Close, Qt::Key_Close>,
304 Xkb2Qt<XKB_KEY_XF86Copy, Qt::Key_Copy>,
305 Xkb2Qt<XKB_KEY_XF86Cut, Qt::Key_Cut>,
306 Xkb2Qt<XKB_KEY_XF86Display, Qt::Key_Display>,
307 Xkb2Qt<XKB_KEY_XF86DOS, Qt::Key_DOS>,
308 Xkb2Qt<XKB_KEY_XF86Documents, Qt::Key_Documents>,
309 Xkb2Qt<XKB_KEY_XF86Excel, Qt::Key_Excel>,
310 Xkb2Qt<XKB_KEY_XF86Explorer, Qt::Key_Explorer>,
311 Xkb2Qt<XKB_KEY_XF86Game, Qt::Key_Game>,
312 Xkb2Qt<XKB_KEY_XF86Go, Qt::Key_Go>,
313 Xkb2Qt<XKB_KEY_XF86iTouch, Qt::Key_iTouch>,
314 Xkb2Qt<XKB_KEY_XF86LogOff, Qt::Key_LogOff>,
315 Xkb2Qt<XKB_KEY_XF86Market, Qt::Key_Market>,
316 Xkb2Qt<XKB_KEY_XF86Meeting, Qt::Key_Meeting>,
317 Xkb2Qt<XKB_KEY_XF86MenuKB, Qt::Key_MenuKB>,
318 Xkb2Qt<XKB_KEY_XF86MenuPB, Qt::Key_MenuPB>,
319 Xkb2Qt<XKB_KEY_XF86MySites, Qt::Key_MySites>,
320 Xkb2Qt<XKB_KEY_XF86New, Qt::Key_New>,
321 Xkb2Qt<XKB_KEY_XF86News, Qt::Key_News>,
322 Xkb2Qt<XKB_KEY_XF86OfficeHome, Qt::Key_OfficeHome>,
323 Xkb2Qt<XKB_KEY_XF86Open, Qt::Key_Open>,
324 Xkb2Qt<XKB_KEY_XF86Option, Qt::Key_Option>,
325 Xkb2Qt<XKB_KEY_XF86Paste, Qt::Key_Paste>,
326 Xkb2Qt<XKB_KEY_XF86Phone, Qt::Key_Phone>,
327 Xkb2Qt<XKB_KEY_XF86Reply, Qt::Key_Reply>,
328 Xkb2Qt<XKB_KEY_XF86Reload, Qt::Key_Reload>,
329 Xkb2Qt<XKB_KEY_XF86RotateWindows, Qt::Key_RotateWindows>,
330 Xkb2Qt<XKB_KEY_XF86RotationPB, Qt::Key_RotationPB>,
331 Xkb2Qt<XKB_KEY_XF86RotationKB, Qt::Key_RotationKB>,
332 Xkb2Qt<XKB_KEY_XF86Save, Qt::Key_Save>,
333 Xkb2Qt<XKB_KEY_XF86Send, Qt::Key_Send>,
334 Xkb2Qt<XKB_KEY_XF86Spell, Qt::Key_Spell>,
335 Xkb2Qt<XKB_KEY_XF86SplitScreen, Qt::Key_SplitScreen>,
336 Xkb2Qt<XKB_KEY_XF86Support, Qt::Key_Support>,
337 Xkb2Qt<XKB_KEY_XF86TaskPane, Qt::Key_TaskPane>,
338 Xkb2Qt<XKB_KEY_XF86Terminal, Qt::Key_Terminal>,
339 Xkb2Qt<XKB_KEY_XF86Tools, Qt::Key_Tools>,
340 Xkb2Qt<XKB_KEY_XF86Travel, Qt::Key_Travel>,
341 Xkb2Qt<XKB_KEY_XF86Video, Qt::Key_Video>,
342 Xkb2Qt<XKB_KEY_XF86Word, Qt::Key_Word>,
343 Xkb2Qt<XKB_KEY_XF86Xfer, Qt::Key_Xfer>,
344 Xkb2Qt<XKB_KEY_XF86ZoomIn, Qt::Key_ZoomIn>,
345 Xkb2Qt<XKB_KEY_XF86ZoomOut, Qt::Key_ZoomOut>,
346 Xkb2Qt<XKB_KEY_XF86Away, Qt::Key_Away>,
347 Xkb2Qt<XKB_KEY_XF86Messenger, Qt::Key_Messenger>,
348 Xkb2Qt<XKB_KEY_XF86WebCam, Qt::Key_WebCam>,
349 Xkb2Qt<XKB_KEY_XF86MailForward, Qt::Key_MailForward>,
350 Xkb2Qt<XKB_KEY_XF86Pictures, Qt::Key_Pictures>,
351 Xkb2Qt<XKB_KEY_XF86Music, Qt::Key_Music>,
352 Xkb2Qt<XKB_KEY_XF86Battery, Qt::Key_Battery>,
353 Xkb2Qt<XKB_KEY_XF86Bluetooth, Qt::Key_Bluetooth>,
354 Xkb2Qt<XKB_KEY_XF86WLAN, Qt::Key_WLAN>,
355 Xkb2Qt<XKB_KEY_XF86UWB, Qt::Key_UWB>,
356 Xkb2Qt<XKB_KEY_XF86AudioForward, Qt::Key_AudioForward>,
357 Xkb2Qt<XKB_KEY_XF86AudioRepeat, Qt::Key_AudioRepeat>,
358 Xkb2Qt<XKB_KEY_XF86AudioRandomPlay, Qt::Key_AudioRandomPlay>,
359 Xkb2Qt<XKB_KEY_XF86Subtitle, Qt::Key_Subtitle>,
360 Xkb2Qt<XKB_KEY_XF86AudioCycleTrack, Qt::Key_AudioCycleTrack>,
361 Xkb2Qt<XKB_KEY_XF86Time, Qt::Key_Time>,
362 Xkb2Qt<XKB_KEY_XF86Select, Qt::Key_Select>,
363 Xkb2Qt<XKB_KEY_XF86View, Qt::Key_View>,
364 Xkb2Qt<XKB_KEY_XF86TopMenu, Qt::Key_TopMenu>,
365 Xkb2Qt<XKB_KEY_XF86Red, Qt::Key_Red>,
366 Xkb2Qt<XKB_KEY_XF86Green, Qt::Key_Green>,
367 Xkb2Qt<XKB_KEY_XF86Yellow, Qt::Key_Yellow>,
368 Xkb2Qt<XKB_KEY_XF86Blue, Qt::Key_Blue>,
369 Xkb2Qt<XKB_KEY_XF86Bluetooth, Qt::Key_Bluetooth>,
370 Xkb2Qt<XKB_KEY_XF86Suspend, Qt::Key_Suspend>,
371 Xkb2Qt<XKB_KEY_XF86Hibernate, Qt::Key_Hibernate>,
372 Xkb2Qt<XKB_KEY_XF86TouchpadToggle, Qt::Key_TouchpadToggle>,
373 Xkb2Qt<XKB_KEY_XF86TouchpadOn, Qt::Key_TouchpadOn>,
374 Xkb2Qt<XKB_KEY_XF86TouchpadOff, Qt::Key_TouchpadOff>,
375 Xkb2Qt<XKB_KEY_XF86AudioMicMute, Qt::Key_MicMute>,
376 Xkb2Qt<XKB_KEY_XF86Launch0, Qt::Key_Launch0>,
377 Xkb2Qt<XKB_KEY_XF86Launch1, Qt::Key_Launch1>,
378 Xkb2Qt<XKB_KEY_XF86Launch2, Qt::Key_Launch2>,
379 Xkb2Qt<XKB_KEY_XF86Launch3, Qt::Key_Launch3>,
380 Xkb2Qt<XKB_KEY_XF86Launch4, Qt::Key_Launch4>,
381 Xkb2Qt<XKB_KEY_XF86Launch5, Qt::Key_Launch5>,
382 Xkb2Qt<XKB_KEY_XF86Launch6, Qt::Key_Launch6>,
383 Xkb2Qt<XKB_KEY_XF86Launch7, Qt::Key_Launch7>,
384 Xkb2Qt<XKB_KEY_XF86Launch8, Qt::Key_Launch8>,
385 Xkb2Qt<XKB_KEY_XF86Launch9, Qt::Key_Launch9>,
386 Xkb2Qt<XKB_KEY_XF86LaunchA, Qt::Key_LaunchA>,
387 Xkb2Qt<XKB_KEY_XF86LaunchB, Qt::Key_LaunchB>,
388 Xkb2Qt<XKB_KEY_XF86LaunchC, Qt::Key_LaunchC>,
389 Xkb2Qt<XKB_KEY_XF86LaunchD, Qt::Key_LaunchD>,
390 Xkb2Qt<XKB_KEY_XF86LaunchE, Qt::Key_LaunchE>,
391 Xkb2Qt<XKB_KEY_XF86LaunchF, Qt::Key_LaunchF>
392 >::Data{}
393);
394
395xkb_keysym_t QXkbCommon::qxkbcommon_xkb_keysym_to_upper(xkb_keysym_t ks)
396{
397 xkb_keysym_t lower, upper;
398
399 xkbcommon_XConvertCase(sym: ks, lower: &lower, upper: &upper);
400
401 return upper;
402}
403
404QString QXkbCommon::lookupString(struct xkb_state *state, xkb_keycode_t code)
405{
406 QVarLengthArray<char, 32> chars(32);
407 const int size = xkb_state_key_get_utf8(state, key: code, buffer: chars.data(), size: chars.size());
408 if (Q_UNLIKELY(size + 1 > chars.size())) { // +1 for NUL
409 chars.resize(sz: size + 1);
410 xkb_state_key_get_utf8(state, key: code, buffer: chars.data(), size: chars.size());
411 }
412 return QString::fromUtf8(utf8: chars.constData(), size);
413}
414
415QString QXkbCommon::lookupStringNoKeysymTransformations(xkb_keysym_t keysym)
416{
417 QVarLengthArray<char, 32> chars(32);
418 const int size = xkb_keysym_to_utf8(keysym, buffer: chars.data(), size: chars.size());
419 if (size == 0)
420 return QString(); // the keysym does not have a Unicode representation
421
422 if (Q_UNLIKELY(size > chars.size())) {
423 chars.resize(sz: size);
424 xkb_keysym_to_utf8(keysym, buffer: chars.data(), size: chars.size());
425 }
426 return QString::fromUtf8(utf8: chars.constData(), size: size - 1);
427}
428
429QList<xkb_keysym_t> QXkbCommon::toKeysym(QKeyEvent *event)
430{
431 QList<xkb_keysym_t> keysyms;
432 int qtKey = event->key();
433
434 if (qtKey >= Qt::Key_F1 && qtKey <= Qt::Key_F35) {
435 keysyms.append(XKB_KEY_F1 + (qtKey - Qt::Key_F1));
436 } else if (event->modifiers() & Qt::KeypadModifier) {
437 if (qtKey >= Qt::Key_0 && qtKey <= Qt::Key_9)
438 keysyms.append(XKB_KEY_KP_0 + (qtKey - Qt::Key_0));
439 } else if (isLatin1(sym: qtKey) && event->text().isUpper()) {
440 keysyms.append(t: qtKey);
441 }
442
443 if (!keysyms.isEmpty())
444 return keysyms;
445
446 // check if we have a direct mapping
447 auto it = std::find_if(first: KeyTbl.cbegin(), last: KeyTbl.cend(), pred: [&qtKey](xkb2qt_t elem) {
448 return elem.qt == static_cast<uint>(qtKey);
449 });
450 if (it != KeyTbl.end()) {
451 keysyms.append(t: it->xkb);
452 return keysyms;
453 }
454
455 QList<uint> ucs4;
456 if (event->text().isEmpty())
457 ucs4.append(t: qtKey);
458 else
459 ucs4 = event->text().toUcs4();
460
461 // From libxkbcommon keysym-utf.c:
462 // "We allow to represent any UCS character in the range U-00000000 to
463 // U-00FFFFFF by a keysym value in the range 0x01000000 to 0x01ffffff."
464 for (uint utf32 : std::as_const(t&: ucs4))
465 keysyms.append(t: utf32 | 0x01000000);
466
467 return keysyms;
468}
469
470int QXkbCommon::keysymToQtKey(xkb_keysym_t keysym, Qt::KeyboardModifiers modifiers)
471{
472 return keysymToQtKey(keysym, modifiers, state: nullptr, code: 0);
473}
474
475int QXkbCommon::keysymToQtKey(xkb_keysym_t keysym, Qt::KeyboardModifiers modifiers,
476 xkb_state *state, xkb_keycode_t code,
477 bool superAsMeta, bool hyperAsMeta)
478{
479 // Note 1: All standard key sequences on linux (as defined in platform theme)
480 // that use a latin character also contain a control modifier, which is why
481 // checking for Qt::ControlModifier is sufficient here. It is possible to
482 // override QPlatformTheme::keyBindings() and provide custom sequences for
483 // QKeySequence::StandardKey. Custom sequences probably should respect this
484 // convention (alternatively, we could test against other modifiers here).
485 // Note 2: The possibleKeys() shorcut mechanism is not affected by this value
486 // adjustment and does its own thing.
487 if (modifiers & Qt::ControlModifier) {
488 // With standard shortcuts we should prefer a latin character, this is
489 // for checks like "some qkeyevent == QKeySequence::Copy" to work even
490 // when using for example 'russian' keyboard layout.
491 xkb_keysym_t latinKeysym = QXkbCommon::lookupLatinKeysym(state, keycode: code);
492 if (latinKeysym != XKB_KEY_NoSymbol)
493 keysym = latinKeysym;
494 }
495
496 return keysymToQtKey_internal(keysym, modifiers, state, code, superAsMeta, hyperAsMeta);
497}
498
499static int keysymToQtKey_internal(xkb_keysym_t keysym, Qt::KeyboardModifiers modifiers,
500 xkb_state *state, xkb_keycode_t code,
501 bool superAsMeta, bool hyperAsMeta)
502{
503 int qtKey = 0;
504
505 // lookup from direct mapping
506 if (keysym >= XKB_KEY_F1 && keysym <= XKB_KEY_F35) {
507 // function keys
508 qtKey = Qt::Key_F1 + (keysym - XKB_KEY_F1);
509 } else if (keysym >= XKB_KEY_KP_0 && keysym <= XKB_KEY_KP_9) {
510 // numeric keypad keys
511 qtKey = Qt::Key_0 + (keysym - XKB_KEY_KP_0);
512 } else if (QXkbCommon::isLatin1(sym: keysym)) {
513 // Most Qt::Key values are determined by their upper-case version,
514 // where this is in the Latin-1 repertoire. So start with that:
515 qtKey = QXkbCommon::qxkbcommon_xkb_keysym_to_upper(ks: keysym);
516 // However, Key_mu and Key_ydiaeresis are U+00B5 MICRO SIGN and
517 // U+00FF LATIN SMALL LETTER Y WITH DIAERESIS, both lower-case,
518 // with upper-case forms outside Latin-1, so use them as they are
519 // since they're the Qt::Key values.
520 if (!QXkbCommon::isLatin1(sym: qtKey))
521 qtKey = keysym;
522 } else {
523 // check if we have a direct mapping
524 xkb2qt_t searchKey{.xkb: keysym, .qt: 0};
525 auto it = std::lower_bound(first: KeyTbl.cbegin(), last: KeyTbl.cend(), val: searchKey);
526 if (it != KeyTbl.end() && !(searchKey < *it))
527 qtKey = it->qt;
528
529 // translate Super/Hyper keys to Meta if we're using them as the MetaModifier
530 if (superAsMeta && (qtKey == Qt::Key_Super_L || qtKey == Qt::Key_Super_R))
531 qtKey = Qt::Key_Meta;
532 if (hyperAsMeta && (qtKey == Qt::Key_Hyper_L || qtKey == Qt::Key_Hyper_R))
533 qtKey = Qt::Key_Meta;
534 }
535
536 if (qtKey)
537 return qtKey;
538
539 // lookup from unicode
540 QString text;
541 if (!state || modifiers & Qt::ControlModifier) {
542 // Control modifier changes the text to ASCII control character, therefore we
543 // can't use this text to map keysym to a qt key. We can use the same keysym
544 // (it is not affectd by transformation) to obtain untransformed text. For details
545 // see "Appendix A. Default Symbol Transformations" in the XKB specification.
546 text = QXkbCommon::lookupStringNoKeysymTransformations(keysym);
547 } else {
548 text = QXkbCommon::lookupString(state, code);
549 }
550 if (!text.isEmpty()) {
551 if (text.unicode()->isDigit()) {
552 // Ensures that also non-latin digits are mapped to corresponding qt keys,
553 // e.g CTRL + Û² (arabic two), is mapped to CTRL + Qt::Key_2.
554 qtKey = Qt::Key_0 + text.unicode()->digitValue();
555 } else {
556 text = text.toUpper();
557 QStringIterator i(text);
558 qtKey = i.next(invalidAs: 0);
559 }
560 }
561
562 return qtKey;
563}
564
565Qt::KeyboardModifiers QXkbCommon::modifiers(struct xkb_state *state, xkb_keysym_t keysym)
566{
567 Qt::KeyboardModifiers modifiers = Qt::NoModifier;
568
569 if (xkb_state_mod_name_is_active(state, XKB_MOD_NAME_CTRL, type: XKB_STATE_MODS_EFFECTIVE) > 0)
570 modifiers |= Qt::ControlModifier;
571 if (xkb_state_mod_name_is_active(state, XKB_MOD_NAME_ALT, type: XKB_STATE_MODS_EFFECTIVE) > 0)
572 modifiers |= Qt::AltModifier;
573 if (xkb_state_mod_name_is_active(state, XKB_MOD_NAME_SHIFT, type: XKB_STATE_MODS_EFFECTIVE) > 0)
574 modifiers |= Qt::ShiftModifier;
575 if (xkb_state_mod_name_is_active(state, XKB_MOD_NAME_LOGO, type: XKB_STATE_MODS_EFFECTIVE) > 0)
576 modifiers |= Qt::MetaModifier;
577
578 if (keysym >= XKB_KEY_KP_Space && keysym <= XKB_KEY_KP_9)
579 modifiers |= Qt::KeypadModifier;
580
581 return modifiers;
582}
583
584// Possible modifier states.
585static const Qt::KeyboardModifiers ModsTbl[] = {
586 Qt::NoModifier, // 0
587 Qt::ShiftModifier, // 1
588 Qt::ControlModifier, // 2
589 Qt::ControlModifier | Qt::ShiftModifier, // 3
590 Qt::AltModifier, // 4
591 Qt::AltModifier | Qt::ShiftModifier, // 5
592 Qt::AltModifier | Qt::ControlModifier, // 6
593 Qt::AltModifier | Qt::ShiftModifier | Qt::ControlModifier, // 7
594 Qt::NoModifier // Fall-back to raw Key_*, for non-latin1 kb layouts
595};
596
597QList<int> QXkbCommon::possibleKeys(xkb_state *state, const QKeyEvent *event,
598 bool superAsMeta, bool hyperAsMeta)
599{
600 QList<int> result;
601 quint32 keycode = event->nativeScanCode();
602 if (!keycode)
603 return result;
604
605 Qt::KeyboardModifiers modifiers = event->modifiers();
606 xkb_keymap *keymap = xkb_state_get_keymap(state);
607 // turn off the modifier bits which doesn't participate in shortcuts
608 Qt::KeyboardModifiers notNeeded = Qt::KeypadModifier | Qt::GroupSwitchModifier;
609 modifiers &= ~notNeeded;
610 // create a fresh kb state and test against the relevant modifier combinations
611 ScopedXKBState scopedXkbQueryState(xkb_state_new(keymap));
612 xkb_state *queryState = scopedXkbQueryState.get();
613 if (!queryState) {
614 qCWarning(lcXkbcommon) << Q_FUNC_INFO << "failed to compile xkb keymap";
615 return result;
616 }
617 // get kb state from the master state and update the temporary state
618 xkb_layout_index_t lockedLayout = xkb_state_serialize_layout(state, components: XKB_STATE_LAYOUT_LOCKED);
619 xkb_mod_mask_t latchedMods = xkb_state_serialize_mods(state, components: XKB_STATE_MODS_LATCHED);
620 xkb_mod_mask_t lockedMods = xkb_state_serialize_mods(state, components: XKB_STATE_MODS_LOCKED);
621 xkb_mod_mask_t depressedMods = xkb_state_serialize_mods(state, components: XKB_STATE_MODS_DEPRESSED);
622 xkb_state_update_mask(state: queryState, depressed_mods: depressedMods, latched_mods: latchedMods, locked_mods: lockedMods, depressed_layout: 0, latched_layout: 0, locked_layout: lockedLayout);
623 // handle shortcuts for level three and above
624 xkb_layout_index_t layoutIndex = xkb_state_key_get_layout(state: queryState, key: keycode);
625 xkb_level_index_t levelIndex = 0;
626 if (layoutIndex != XKB_LAYOUT_INVALID) {
627 levelIndex = xkb_state_key_get_level(state: queryState, key: keycode, layout: layoutIndex);
628 if (levelIndex == XKB_LEVEL_INVALID)
629 levelIndex = 0;
630 }
631 if (levelIndex <= 1)
632 xkb_state_update_mask(state: queryState, depressed_mods: 0, latched_mods: latchedMods, locked_mods: lockedMods, depressed_layout: 0, latched_layout: 0, locked_layout: lockedLayout);
633
634 xkb_keysym_t sym = xkb_state_key_get_one_sym(state: queryState, key: keycode);
635 if (sym == XKB_KEY_NoSymbol)
636 return result;
637
638 int baseQtKey = keysymToQtKey_internal(keysym: sym, modifiers, state: queryState, code: keycode, superAsMeta, hyperAsMeta);
639 if (baseQtKey)
640 result += (baseQtKey + int(modifiers));
641
642 xkb_mod_index_t shiftMod = xkb_keymap_mod_get_index(keymap, name: "Shift");
643 xkb_mod_index_t altMod = xkb_keymap_mod_get_index(keymap, name: "Alt");
644 xkb_mod_index_t controlMod = xkb_keymap_mod_get_index(keymap, name: "Control");
645 xkb_mod_index_t metaMod = xkb_keymap_mod_get_index(keymap, name: "Meta");
646
647 Q_ASSERT(shiftMod < 32);
648 Q_ASSERT(altMod < 32);
649 Q_ASSERT(controlMod < 32);
650
651 xkb_mod_mask_t depressed;
652 int qtKey = 0;
653 // obtain a list of possible shortcuts for the given key event
654 for (uint i = 1; i < sizeof(ModsTbl) / sizeof(*ModsTbl) ; ++i) {
655 Qt::KeyboardModifiers neededMods = ModsTbl[i];
656 if ((modifiers & neededMods) == neededMods) {
657 if (i == 8) {
658 if (isLatin1(sym: baseQtKey))
659 continue;
660 // add a latin key as a fall back key
661 sym = lookupLatinKeysym(state, keycode);
662 } else {
663 depressed = 0;
664 if (neededMods & Qt::AltModifier)
665 depressed |= (1 << altMod);
666 if (neededMods & Qt::ShiftModifier)
667 depressed |= (1 << shiftMod);
668 if (neededMods & Qt::ControlModifier)
669 depressed |= (1 << controlMod);
670 if (metaMod < 32 && neededMods & Qt::MetaModifier)
671 depressed |= (1 << metaMod);
672 xkb_state_update_mask(state: queryState, depressed_mods: depressed, latched_mods: latchedMods, locked_mods: lockedMods, depressed_layout: 0, latched_layout: 0, locked_layout: lockedLayout);
673 sym = xkb_state_key_get_one_sym(state: queryState, key: keycode);
674 }
675 if (sym == XKB_KEY_NoSymbol)
676 continue;
677
678 Qt::KeyboardModifiers mods = modifiers & ~neededMods;
679 qtKey = keysymToQtKey_internal(keysym: sym, modifiers: mods, state: queryState, code: keycode, superAsMeta, hyperAsMeta);
680 if (!qtKey || qtKey == baseQtKey)
681 continue;
682
683 // catch only more specific shortcuts, i.e. Ctrl+Shift+= also generates Ctrl++ and +,
684 // but Ctrl++ is more specific than +, so we should skip the last one
685 bool ambiguous = false;
686 for (int shortcut : std::as_const(t&: result)) {
687 if (int(shortcut & ~Qt::KeyboardModifierMask) == qtKey && (shortcut & mods) == mods) {
688 ambiguous = true;
689 break;
690 }
691 }
692 if (ambiguous)
693 continue;
694
695 result += (qtKey + int(mods));
696 }
697 }
698
699 return result;
700}
701
702void QXkbCommon::verifyHasLatinLayout(xkb_keymap *keymap)
703{
704 const xkb_layout_index_t layoutCount = xkb_keymap_num_layouts(keymap);
705 const xkb_keycode_t minKeycode = xkb_keymap_min_keycode(keymap);
706 const xkb_keycode_t maxKeycode = xkb_keymap_max_keycode(keymap);
707
708 const xkb_keysym_t *keysyms = nullptr;
709 int nrLatinKeys = 0;
710 for (xkb_layout_index_t layout = 0; layout < layoutCount; ++layout) {
711 for (xkb_keycode_t code = minKeycode; code < maxKeycode; ++code) {
712 xkb_keymap_key_get_syms_by_level(keymap, key: code, layout, level: 0, syms_out: &keysyms);
713 if (keysyms && isLatin1(sym: keysyms[0]))
714 nrLatinKeys++;
715 if (nrLatinKeys > 10) // arbitrarily chosen threshold
716 return;
717 }
718 }
719 // This means that lookupLatinKeysym() will not find anything and latin
720 // key shortcuts might not work. This is a bug in the affected desktop
721 // environment. Usually can be solved via system settings by adding e.g. 'us'
722 // layout to the list of selected layouts, or by using command line, "setxkbmap
723 // -layout rus,en". The position of latin key based layout in the list of the
724 // selected layouts is irrelevant. Properly functioning desktop environments
725 // handle this behind the scenes, even if no latin key based layout has been
726 // explicitly listed in the selected layouts.
727 qCDebug(lcXkbcommon, "no keyboard layouts with latin keys present");
728}
729
730xkb_keysym_t QXkbCommon::lookupLatinKeysym(xkb_state *state, xkb_keycode_t keycode)
731{
732 xkb_layout_index_t layout;
733 xkb_keysym_t sym = XKB_KEY_NoSymbol;
734 xkb_keymap *keymap = xkb_state_get_keymap(state);
735 const xkb_layout_index_t layoutCount = xkb_keymap_num_layouts_for_key(keymap, key: keycode);
736 // Look at user layouts in the order in which they are defined in system
737 // settings to find a latin keysym.
738 for (layout = 0; layout < layoutCount; ++layout) {
739 const xkb_keysym_t *syms = nullptr;
740 xkb_level_index_t level = xkb_state_key_get_level(state, key: keycode, layout);
741 if (xkb_keymap_key_get_syms_by_level(keymap, key: keycode, layout, level, syms_out: &syms) != 1)
742 continue;
743 if (isLatin1(sym: syms[0])) {
744 sym = syms[0];
745 break;
746 }
747 }
748
749 return sym;
750}
751
752void QXkbCommon::setXkbContext(QPlatformInputContext *inputContext, struct xkb_context *context)
753{
754 if (!inputContext || !context)
755 return;
756
757 const char *const inputContextClassName = "QComposeInputContext";
758 const char *const normalizedSignature = "setXkbContext(xkb_context*)";
759
760 if (inputContext->objectName() != QLatin1StringView(inputContextClassName))
761 return;
762
763 static const QMetaMethod setXkbContext = [&]() {
764 int methodIndex = inputContext->metaObject()->indexOfMethod(method: normalizedSignature);
765 QMetaMethod method = inputContext->metaObject()->method(index: methodIndex);
766 Q_ASSERT(method.isValid());
767 if (!method.isValid())
768 qCWarning(lcXkbcommon) << normalizedSignature << "not found on" << inputContextClassName;
769 return method;
770 }();
771
772 if (!setXkbContext.isValid())
773 return;
774
775 setXkbContext.invoke(obj: inputContext, c: Qt::DirectConnection, Q_ARG(struct xkb_context*, context));
776}
777
778QT_END_NAMESPACE
779

source code of qtbase/src/gui/platform/unix/qxkbcommon.cpp