KI18n

klocalizedqmlcontext.cpp
1/*
2 SPDX-FileCopyrightText: 2013 Marco Martin <mart@kde.org>
3
4 SPDX-License-Identifier: LGPL-2.0-or-later
5*/
6
7// Undefine this because we don't want our i18n*() method names to be turned into i18nd*()
8#undef TRANSLATION_DOMAIN
9
10#include "klocalizedqmlcontext.h"
11
12#include <klocalizedstring.h>
13
14#include <QCoreApplication>
15#include <QQmlContext>
16#include <QQmlEngine>
17
18#include "ki18n_qml_logging.h"
19
20class KLocalizedQmlContextPrivate
21{
22public:
23 void markCurrentFunctionAsTranslationBinding(const KLocalizedQmlContext *q) const;
24
25 QString m_translationDomain;
26};
27
28void KLocalizedQmlContextPrivate::markCurrentFunctionAsTranslationBinding(const KLocalizedQmlContext *q) const
29{
30#if QT_VERSION > QT_VERSION_CHECK(6, 6, 0)
31 if (auto engine = qmlEngine(q); engine) {
32 engine->markCurrentFunctionAsTranslationBinding();
33 } else {
34 qCDebug(KI18N) << "No QML engine available, KLocalizedQmlContext not properly set up?";
35 }
36#endif
37}
38
39KLocalizedQmlContext::KLocalizedQmlContext(QObject *parent)
40 : QObject(parent)
41 , d(new KLocalizedQmlContextPrivate)
42{
43 QCoreApplication::instance()->installEventFilter(this);
44}
45
46KLocalizedQmlContext::~KLocalizedQmlContext() = default;
47
48QString KLocalizedQmlContext::translationDomain() const
49{
50 return d->m_translationDomain;
51}
52
53void KLocalizedQmlContext::setTranslationDomain(const QString &domain)
54{
55 if (domain != d->m_translationDomain) {
56 d->m_translationDomain = domain;
57 Q_EMIT translationDomainChanged(domain);
58 }
59}
60
61static void subsVariant(KLocalizedString &trMessage, const QVariant &value)
62{
63 switch (value.userType()) {
64 case QMetaType::QString:
65 trMessage = trMessage.subs(value.toString());
66 break;
67 case QMetaType::Int:
68 trMessage = trMessage.subs(value.toInt());
69 break;
70 case QMetaType::Double:
71 trMessage = trMessage.subs(value.toDouble());
72 break;
73 case QMetaType::Char:
74 trMessage = trMessage.subs(value.toChar());
75 break;
76 default:
77 if (value.canConvert<QString>()) {
78 trMessage = trMessage.subs(value.toString());
79 } else {
80 trMessage = trMessage.subs(QStringLiteral("???"));
81 qCWarning(KI18N) << "couldn't convert" << value << "to translate";
82 }
83 }
84}
85
86static void resolveMessage(KLocalizedString &trMessage,
87 const QVariant &param1,
88 const QVariant &param2,
89 const QVariant &param3,
90 const QVariant &param4,
91 const QVariant &param5,
92 const QVariant &param6,
93 const QVariant &param7,
94 const QVariant &param8,
95 const QVariant &param9,
96 const QVariant &param10 = QVariant())
97{
98 if (param1.isValid()) {
99 subsVariant(trMessage, param1);
100 }
101 if (param2.isValid()) {
102 subsVariant(trMessage, param2);
103 }
104 if (param3.isValid()) {
105 subsVariant(trMessage, param3);
106 }
107 if (param4.isValid()) {
108 subsVariant(trMessage, param4);
109 }
110 if (param5.isValid()) {
111 subsVariant(trMessage, param5);
112 }
113 if (param6.isValid()) {
114 subsVariant(trMessage, param6);
115 }
116 if (param7.isValid()) {
117 subsVariant(trMessage, param7);
118 }
119 if (param8.isValid()) {
120 subsVariant(trMessage, param8);
121 }
122 if (param9.isValid()) {
123 subsVariant(trMessage, param9);
124 }
125 if (param10.isValid()) {
126 subsVariant(trMessage, param10);
127 }
128}
129
130static void resolvePlural(KLocalizedString &trMessage, const QVariant &param)
131{
132 trMessage = trMessage.subs(param.toInt());
133}
134
135QString KLocalizedQmlContext::i18n(const QString &message,
136 const QVariant &param1,
137 const QVariant &param2,
138 const QVariant &param3,
139 const QVariant &param4,
140 const QVariant &param5,
141 const QVariant &param6,
142 const QVariant &param7,
143 const QVariant &param8,
144 const QVariant &param9,
145 const QVariant &param10) const
146{
147 if (message.isEmpty()) {
148 qCWarning(KI18N) << "i18n() needs at least one parameter";
149 return QString();
150 }
151
152 KLocalizedString trMessage;
153 if (!d->m_translationDomain.isEmpty()) {
154 trMessage = ki18nd(d->m_translationDomain.toUtf8().constData(), message.toUtf8().constData());
155 } else {
156 trMessage = ki18n(message.toUtf8().constData());
157 }
158
159 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
160
161 d->markCurrentFunctionAsTranslationBinding(this);
162 return trMessage.toString();
163}
164
165QString KLocalizedQmlContext::i18nc(const QString &context,
166 const QString &message,
167 const QVariant &param1,
168 const QVariant &param2,
169 const QVariant &param3,
170 const QVariant &param4,
171 const QVariant &param5,
172 const QVariant &param6,
173 const QVariant &param7,
174 const QVariant &param8,
175 const QVariant &param9,
176 const QVariant &param10) const
177{
178 if (context.isEmpty() || message.isEmpty()) {
179 qCWarning(KI18N).noquote().nospace() << "i18nc(\"" << context << message << "\") needs at least two arguments";
180 return QString();
181 }
182
183 KLocalizedString trMessage;
184 if (!d->m_translationDomain.isEmpty()) {
185 trMessage = ki18ndc(d->m_translationDomain.toUtf8().constData(), context.toUtf8().constData(), message.toUtf8().constData());
186 } else {
187 trMessage = ki18nc(context.toUtf8().constData(), message.toUtf8().constData());
188 }
189
190 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
191
192 d->markCurrentFunctionAsTranslationBinding(this);
193 return trMessage.toString();
194}
195
196QString KLocalizedQmlContext::i18np(const QString &singular,
197 const QString &plural,
198 const QVariant &param1,
199 const QVariant &param2,
200 const QVariant &param3,
201 const QVariant &param4,
202 const QVariant &param5,
203 const QVariant &param6,
204 const QVariant &param7,
205 const QVariant &param8,
206 const QVariant &param9,
207 const QVariant &param10) const
208{
209 if (singular.isEmpty() || plural.isEmpty()) {
210 qCWarning(KI18N).noquote().nospace() << "i18np(\"" << singular << plural << "\") needs at least two arguments";
211 return QString();
212 }
213
214 KLocalizedString trMessage;
215 if (!d->m_translationDomain.isEmpty()) {
216 trMessage = ki18ndp(d->m_translationDomain.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
217 } else {
218 trMessage = ki18np(singular.toUtf8().constData(), plural.toUtf8().constData());
219 }
220
221 resolvePlural(trMessage, param1);
222 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
223
224 d->markCurrentFunctionAsTranslationBinding(this);
225 return trMessage.toString();
226}
227
228QString KLocalizedQmlContext::i18ncp(const QString &context,
229 const QString &singular,
230 const QString &plural,
231 const QVariant &param1,
232 const QVariant &param2,
233 const QVariant &param3,
234 const QVariant &param4,
235 const QVariant &param5,
236 const QVariant &param6,
237 const QVariant &param7,
238 const QVariant &param8,
239 const QVariant &param9,
240 const QVariant &param10) const
241{
242 if (context.isEmpty() || singular.isEmpty() || plural.isEmpty()) {
243 qCWarning(KI18N) << "i18ncp() needs at least three arguments";
244 return QString();
245 }
246
247 KLocalizedString trMessage;
248 if (!d->m_translationDomain.isEmpty()) {
249 trMessage =
250 ki18ndcp(d->m_translationDomain.toUtf8().constData(), context.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
251 } else {
252 trMessage = ki18ncp(context.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
253 }
254
255 resolvePlural(trMessage, param1);
256 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
257
258 d->markCurrentFunctionAsTranslationBinding(this);
259 return trMessage.toString();
260}
261
262QString KLocalizedQmlContext::i18nd(const QString &domain,
263 const QString &message,
264 const QVariant &param1,
265 const QVariant &param2,
266 const QVariant &param3,
267 const QVariant &param4,
268 const QVariant &param5,
269 const QVariant &param6,
270 const QVariant &param7,
271 const QVariant &param8,
272 const QVariant &param9,
273 const QVariant &param10) const
274{
275 if (domain.isEmpty() || message.isEmpty()) {
276 qCWarning(KI18N).noquote().nospace() << "i18nd(\"" << domain << message << "\") needs at least two parameters";
277 return QString();
278 }
279
280 KLocalizedString trMessage = ki18nd(domain.toUtf8().constData(), message.toUtf8().constData());
281
282 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
283
284 d->markCurrentFunctionAsTranslationBinding(this);
285 return trMessage.toString();
286}
287
288QString KLocalizedQmlContext::i18ndc(const QString &domain,
289 const QString &context,
290 const QString &message,
291 const QVariant &param1,
292 const QVariant &param2,
293 const QVariant &param3,
294 const QVariant &param4,
295 const QVariant &param5,
296 const QVariant &param6,
297 const QVariant &param7,
298 const QVariant &param8,
299 const QVariant &param9,
300 const QVariant &param10) const
301{
302 if (domain.isEmpty() || context.isEmpty() || message.isEmpty()) {
303 qCWarning(KI18N) << "i18ndc() needs at least three arguments";
304 return QString();
305 }
306
307 KLocalizedString trMessage = ki18ndc(domain.toUtf8().constData(), context.toUtf8().constData(), message.toUtf8().constData());
308
309 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
310
311 d->markCurrentFunctionAsTranslationBinding(this);
312 return trMessage.toString();
313}
314
315QString KLocalizedQmlContext::i18ndp(const QString &domain,
316 const QString &singular,
317 const QString &plural,
318 const QVariant &param1,
319 const QVariant &param2,
320 const QVariant &param3,
321 const QVariant &param4,
322 const QVariant &param5,
323 const QVariant &param6,
324 const QVariant &param7,
325 const QVariant &param8,
326 const QVariant &param9,
327 const QVariant &param10) const
328{
329 if (domain.isEmpty() || singular.isEmpty() || plural.isEmpty()) {
330 qCWarning(KI18N) << "i18ndp() needs at least three arguments";
331 return QString();
332 }
333
334 KLocalizedString trMessage = ki18ndp(domain.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
335
336 resolvePlural(trMessage, param1);
337 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
338
339 d->markCurrentFunctionAsTranslationBinding(this);
340 return trMessage.toString();
341}
342
343QString KLocalizedQmlContext::i18ndcp(const QString &domain,
344 const QString &context,
345 const QString &singular,
346 const QString &plural,
347 const QVariant &param1,
348 const QVariant &param2,
349 const QVariant &param3,
350 const QVariant &param4,
351 const QVariant &param5,
352 const QVariant &param6,
353 const QVariant &param7,
354 const QVariant &param8,
355 const QVariant &param9,
356 const QVariant &param10) const
357{
358 if (domain.isEmpty() || context.isEmpty() || singular.isEmpty() || plural.isEmpty()) {
359 qCWarning(KI18N) << "i18ndcp() needs at least four arguments";
360 return QString();
361 }
362
363 KLocalizedString trMessage =
364 ki18ndcp(domain.toUtf8().constData(), context.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
365
366 resolvePlural(trMessage, param1);
367 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
368
369 d->markCurrentFunctionAsTranslationBinding(this);
370 return trMessage.toString();
371}
372
373/////////////////////////
374
375QString KLocalizedQmlContext::xi18n(const QString &message,
376 const QVariant &param1,
377 const QVariant &param2,
378 const QVariant &param3,
379 const QVariant &param4,
380 const QVariant &param5,
381 const QVariant &param6,
382 const QVariant &param7,
383 const QVariant &param8,
384 const QVariant &param9,
385 const QVariant &param10) const
386{
387 if (message.isEmpty()) {
388 qCWarning(KI18N) << "xi18n() needs at least one parameter";
389 return QString();
390 }
391
392 KLocalizedString trMessage;
393 if (!d->m_translationDomain.isEmpty()) {
394 trMessage = kxi18nd(d->m_translationDomain.toUtf8().constData(), message.toUtf8().constData());
395 } else {
396 trMessage = kxi18n(message.toUtf8().constData());
397 }
398
399 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
400
401 d->markCurrentFunctionAsTranslationBinding(this);
402 return trMessage.toString();
403}
404
405QString KLocalizedQmlContext::xi18nc(const QString &context,
406 const QString &message,
407 const QVariant &param1,
408 const QVariant &param2,
409 const QVariant &param3,
410 const QVariant &param4,
411 const QVariant &param5,
412 const QVariant &param6,
413 const QVariant &param7,
414 const QVariant &param8,
415 const QVariant &param9,
416 const QVariant &param10) const
417{
418 if (context.isEmpty() || message.isEmpty()) {
419 qCWarning(KI18N).noquote().nospace() << "xi18nc(\"" << context << message << "\") needs at least two arguments";
420 return QString();
421 }
422
423 KLocalizedString trMessage;
424 if (!d->m_translationDomain.isEmpty()) {
425 trMessage = kxi18ndc(d->m_translationDomain.toUtf8().constData(), context.toUtf8().constData(), message.toUtf8().constData());
426 } else {
427 trMessage = kxi18nc(context.toUtf8().constData(), message.toUtf8().constData());
428 }
429
430 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
431
432 d->markCurrentFunctionAsTranslationBinding(this);
433 return trMessage.toString();
434}
435
436QString KLocalizedQmlContext::xi18np(const QString &singular,
437 const QString &plural,
438 const QVariant &param1,
439 const QVariant &param2,
440 const QVariant &param3,
441 const QVariant &param4,
442 const QVariant &param5,
443 const QVariant &param6,
444 const QVariant &param7,
445 const QVariant &param8,
446 const QVariant &param9,
447 const QVariant &param10) const
448{
449 if (singular.isEmpty() || plural.isEmpty()) {
450 qCWarning(KI18N).noquote().nospace() << "xi18np(\"" << singular << plural << "\") needs at least two arguments";
451 return QString();
452 }
453
454 KLocalizedString trMessage;
455 if (!d->m_translationDomain.isEmpty()) {
456 trMessage = kxi18ndp(d->m_translationDomain.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
457 } else {
458 trMessage = kxi18np(singular.toUtf8().constData(), plural.toUtf8().constData());
459 }
460
461 resolvePlural(trMessage, param1);
462 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
463
464 d->markCurrentFunctionAsTranslationBinding(this);
465 return trMessage.toString();
466}
467
468QString KLocalizedQmlContext::xi18ncp(const QString &context,
469 const QString &singular,
470 const QString &plural,
471 const QVariant &param1,
472 const QVariant &param2,
473 const QVariant &param3,
474 const QVariant &param4,
475 const QVariant &param5,
476 const QVariant &param6,
477 const QVariant &param7,
478 const QVariant &param8,
479 const QVariant &param9,
480 const QVariant &param10) const
481{
482 if (context.isEmpty() || singular.isEmpty() || plural.isEmpty()) {
483 qCWarning(KI18N) << "xi18ncp() needs at least three arguments";
484 return QString();
485 }
486
487 KLocalizedString trMessage;
488 if (!d->m_translationDomain.isEmpty()) {
489 trMessage =
490 kxi18ndcp(d->m_translationDomain.toUtf8().constData(), context.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
491 } else {
492 trMessage = kxi18ncp(context.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
493 }
494
495 resolvePlural(trMessage, param1);
496 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
497
498 d->markCurrentFunctionAsTranslationBinding(this);
499 return trMessage.toString();
500}
501
502QString KLocalizedQmlContext::xi18nd(const QString &domain,
503 const QString &message,
504 const QVariant &param1,
505 const QVariant &param2,
506 const QVariant &param3,
507 const QVariant &param4,
508 const QVariant &param5,
509 const QVariant &param6,
510 const QVariant &param7,
511 const QVariant &param8,
512 const QVariant &param9,
513 const QVariant &param10) const
514{
515 if (domain.isEmpty() || message.isEmpty()) {
516 qCWarning(KI18N).noquote().nospace() << "xi18nd(\"" << domain << message << "\") needs at least two parameters";
517 return QString();
518 }
519
520 KLocalizedString trMessage = kxi18nd(domain.toUtf8().constData(), message.toUtf8().constData());
521
522 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
523
524 d->markCurrentFunctionAsTranslationBinding(this);
525 return trMessage.toString();
526}
527
528QString KLocalizedQmlContext::xi18ndc(const QString &domain,
529 const QString &context,
530 const QString &message,
531 const QVariant &param1,
532 const QVariant &param2,
533 const QVariant &param3,
534 const QVariant &param4,
535 const QVariant &param5,
536 const QVariant &param6,
537 const QVariant &param7,
538 const QVariant &param8,
539 const QVariant &param9,
540 const QVariant &param10) const
541{
542 if (domain.isEmpty() || context.isEmpty() || message.isEmpty()) {
543 qCWarning(KI18N) << "x18ndc() needs at least three arguments";
544 return QString();
545 }
546
547 KLocalizedString trMessage = kxi18ndc(domain.toUtf8().constData(), context.toUtf8().constData(), message.toUtf8().constData());
548
549 resolveMessage(trMessage, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10);
550
551 d->markCurrentFunctionAsTranslationBinding(this);
552 return trMessage.toString();
553}
554
555QString KLocalizedQmlContext::xi18ndp(const QString &domain,
556 const QString &singular,
557 const QString &plural,
558 const QVariant &param1,
559 const QVariant &param2,
560 const QVariant &param3,
561 const QVariant &param4,
562 const QVariant &param5,
563 const QVariant &param6,
564 const QVariant &param7,
565 const QVariant &param8,
566 const QVariant &param9,
567 const QVariant &param10) const
568{
569 if (domain.isEmpty() || singular.isEmpty() || plural.isEmpty()) {
570 qCWarning(KI18N) << "xi18ndp() needs at least three arguments";
571 return QString();
572 }
573
574 KLocalizedString trMessage = kxi18ndp(domain.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
575
576 resolvePlural(trMessage, param1);
577 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
578
579 d->markCurrentFunctionAsTranslationBinding(this);
580 return trMessage.toString();
581}
582
583QString KLocalizedQmlContext::xi18ndcp(const QString &domain,
584 const QString &context,
585 const QString &singular,
586 const QString &plural,
587 const QVariant &param1,
588 const QVariant &param2,
589 const QVariant &param3,
590 const QVariant &param4,
591 const QVariant &param5,
592 const QVariant &param6,
593 const QVariant &param7,
594 const QVariant &param8,
595 const QVariant &param9,
596 const QVariant &param10) const
597{
598 if (domain.isEmpty() || context.isEmpty() || singular.isEmpty() || plural.isEmpty()) {
599 qCWarning(KI18N) << "xi18ndcp() needs at least four arguments";
600 return QString();
601 }
602
603 KLocalizedString trMessage =
604 kxi18ndcp(domain.toUtf8().constData(), context.toUtf8().constData(), singular.toUtf8().constData(), plural.toUtf8().constData());
605
606 resolvePlural(trMessage, param1);
607 resolveMessage(trMessage, param2, param3, param4, param5, param6, param7, param8, param9, param10);
608
609 d->markCurrentFunctionAsTranslationBinding(this);
610 return trMessage.toString();
611}
612
613bool KLocalizedQmlContext::eventFilter(QObject *watched, QEvent *event)
614{
615 if (event->type() == QEvent::LanguageChange && watched == QCoreApplication::instance()) {
616 qCDebug(KI18N) << "triggering binding reevaluation";
617 // run this deferred so we can be sure other things have reacted, such as KLocalizedString
618 // having updated its internal caches
619 if (auto engine = qmlEngine(this); engine) {
620 QMetaObject::invokeMethod(engine, &QQmlEngine::retranslate, Qt::QueuedConnection);
621 }
622 }
623 return QObject::eventFilter(watched, event);
624}
625
626KLocalizedQmlContext *KLocalization::Internal::createLocalizedContext(QQmlEngine *engine)
627{
628 auto ctx = new KLocalizedQmlContext(engine);
629 engine->rootContext()->setContextObject(ctx);
630 QQmlEngine::setContextForObject(ctx, engine->rootContext());
631 return ctx;
632}
633
634#include "moc_klocalizedqmlcontext.cpp"
KLocalizedQmlContext
This class is meant to be used to simplify integration of the KI18n framework in QML.
Definition klocalizedqmlcontext.h:58
KLocalizedQmlContext::translationDomain
QString translationDomain
This property only needs to be specified if the context is being run on a library.
Definition klocalizedqmlcontext.h:66
KLocalizedString
Class for producing and handling localized messages.
Definition klocalizedstring.h:45
KLocalizedString::toString
QString toString() const
Finalize the translation.
Definition klocalizedstring.cpp:479
KLocalizedString::subs
KLocalizedString subs(int a, int fieldWidth=0, int base=10, QChar fillChar=QLatin1Char(' ')) const
Substitute an int argument into the message.
Definition klocalizedstring.cpp:1084
QByteArray::constData
const char * constData() const const
QCoreApplication::instance
QCoreApplication * instance()
QMetaObject::invokeMethod
bool invokeMethod(QObject *context, Functor &&function, FunctorReturnType *ret)
QObject::Q_EMIT
Q_EMITQ_EMIT
QObject::event
virtual bool event(QEvent *e)
QObject::eventFilter
virtual bool eventFilter(QObject *watched, QEvent *event)
QObject::installEventFilter
void installEventFilter(QObject *filterObj)
QQmlContext::setContextObject
void setContextObject(QObject *object)
QQmlEngine::retranslate
void retranslate()
QQmlEngine::rootContext
QQmlContext * rootContext() const const
QQmlEngine::setContextForObject
void setContextForObject(QObject *object, QQmlContext *context)
QString::isEmpty
bool isEmpty() const const
QString::toUtf8
QByteArray toUtf8() const const
Qt::QueuedConnection
QueuedConnection
QVariant::canConvert
bool canConvert() const const
QVariant::isValid
bool isValid() const const
QVariant::toChar
QChar toChar() const const
QVariant::toDouble
double toDouble(bool *ok) const const
QVariant::toInt
int toInt(bool *ok) const const
QVariant::toString
QString toString() const const
QVariant::userType
int userType() const const
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