1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativetypeloader_p.h"
#include <private/qdeclarativeengine_p.h>
#include <private/qdeclarativecompiler_p.h>
#include <private/qdeclarativecomponent_p.h>
#include <private/qdeclarativeglobal_p.h>
#include <QtDeclarative/qdeclarativecomponent.h>
#include <QtCore/qdebug.h>
#include <QtCore/qdir.h>
#include <QtCore/qfile.h>
QT_BEGIN_NAMESPACE
/*!
\class QDeclarativeDataBlob
\brief The QDeclarativeDataBlob encapsulates a data request that can be issued to a QDeclarativeDataLoader.
\internal
QDeclarativeDataBlob's are loaded by a QDeclarativeDataLoader. The user creates the QDeclarativeDataBlob
and then calls QDeclarativeDataLoader::load() or QDeclarativeDataLoader::loadWithStaticData() to load it.
The QDeclarativeDataLoader invokes callbacks on the QDeclarativeDataBlob as data becomes available.
*/
/*!
\enum QDeclarativeDataBlob::Status
This enum describes the status of the data blob.
\list
\o Null The blob has not yet been loaded by a QDeclarativeDataLoader
\o Loading The blob is loading network data. The QDeclarativeDataBlob::setData() callback has not yet been
invoked or has not yet returned.
\o WaitingForDependencies The blob is waiting for dependencies to be done before continueing. This status
only occurs after the QDeclarativeDataBlob::setData() callback has been made, and when the blob has outstanding
dependencies.
\o Complete The blob's data has been loaded and all dependencies are done.
\o Error An error has been set on this blob.
\endlist
*/
/*!
\enum QDeclarativeDataBlob::Type
This enum describes the type of the data blob.
\list
\o QmlFile This is a QDeclarativeTypeData
\o JavaScriptFile This is a QDeclarativeScriptData
\o QmldirFile This is a QDeclarativeQmldirData
\endlist
*/
/*!
Create a new QDeclarativeDataBlob for \a url and of the provided \a type.
*/
QDeclarativeDataBlob::QDeclarativeDataBlob(const QUrl &url, Type type)
: m_type(type), m_status(Null), m_progress(0), m_url(url), m_finalUrl(url), m_manager(0),
m_redirectCount(0), m_inCallback(false), m_isDone(false)
{
}
/*! \internal */
QDeclarativeDataBlob::~QDeclarativeDataBlob()
{
Q_ASSERT(m_waitingOnMe.isEmpty());
cancelAllWaitingFor();
}
/*!
Returns the type provided to the constructor.
*/
QDeclarativeDataBlob::Type QDeclarativeDataBlob::type() const
{
return m_type;
}
/*!
Returns the blob's status.
*/
QDeclarativeDataBlob::Status QDeclarativeDataBlob::status() const
{
return m_status;
}
/*!
Returns true if the status is Null.
*/
bool QDeclarativeDataBlob::isNull() const
{
return m_status == Null;
}
/*!
Returns true if the status is Loading.
*/
bool QDeclarativeDataBlob::isLoading() const
{
return m_status == Loading;
}
/*!
Returns true if the status is WaitingForDependencies.
*/
bool QDeclarativeDataBlob::isWaiting() const
{
return m_status == WaitingForDependencies;
}
/*!
Returns true if the status is Complete.
*/
bool QDeclarativeDataBlob::isComplete() const
{
return m_status == Complete;
}
/*!
Returns true if the status is Error.
*/
bool QDeclarativeDataBlob::isError() const
{
return m_status == Error;
}
/*!
Returns true if the status is Complete or Error.
*/
bool QDeclarativeDataBlob::isCompleteOrError() const
{
return isComplete() || isError();
}
/*!
Returns the data download progress from 0 to 1.
*/
qreal QDeclarativeDataBlob::progress() const
{
return m_progress;
}
/*!
Returns the blob url passed to the constructor. If a network redirect
happens while fetching the data, this url remains the same.
\sa finalUrl()
*/
QUrl QDeclarativeDataBlob::url() const
{
return m_url;
}
/*!
Returns the final url of the data. Initially this is the same as
url(), but if a network redirect happens while fetching the data, this url
is updated to reflect the new location.
*/
QUrl QDeclarativeDataBlob::finalUrl() const
{
return m_finalUrl;
}
/*!
Return the errors on this blob.
*/
QList<QDeclarativeError> QDeclarativeDataBlob::errors() const
{
return m_errors;
}
/*!
Mark this blob as having \a errors.
All outstanding dependencies will be cancelled. Requests to add new dependencies
will be ignored. Entry into the Error state is irreversable, although you can change the
specific errors by additional calls to setError.
*/
void QDeclarativeDataBlob::setError(const QDeclarativeError &errors)
{
QList<QDeclarativeError> l;
l << errors;
setError(l);
}
/*!
\overload
*/
void QDeclarativeDataBlob::setError(const QList<QDeclarativeError> &errors)
{
m_status = Error;
m_errors = errors;
cancelAllWaitingFor();
if (!m_inCallback)
tryDone();
}
/*!
Wait for \a blob to become complete or to error. If \a blob is already
complete or in error, or this blob is already complete, this has no effect.
*/
void QDeclarativeDataBlob::addDependency(QDeclarativeDataBlob *blob)
{
Q_ASSERT(status() != Null);
if (!blob ||
blob->status() == Error || blob->status() == Complete ||
status() == Error || status() == Complete ||
m_waitingFor.contains(blob))
return;
blob->addref();
m_status = WaitingForDependencies;
m_waitingFor.append(blob);
blob->m_waitingOnMe.append(this);
}
/*!
\fn void QDeclarativeDataBlob::dataReceived(const QByteArray &data)
Invoked when data for the blob is received. Implementors should use this callback
to determine a blob's dependencies. Within this callback you may call setError()
or addDependency().
*/
/*!
Invoked once data has either been received or a network error occurred, and all
dependencies are complete.
You can set an error in this method, but you cannot add new dependencies. Implementors
should use this callback to finalize processing of data.
The default implementation does nothing.
*/
void QDeclarativeDataBlob::done()
{
}
/*!
Invoked if there is a network error while fetching this blob.
The default implementation sets an appropriate QDeclarativeError.
*/
void QDeclarativeDataBlob::networkError(QNetworkReply::NetworkError networkError)
{
Q_UNUSED(networkError);
QDeclarativeError error;
error.setUrl(m_finalUrl);
const char *errorString = 0;
switch (networkError) {
default:
errorString = "Network error";
break;
case QNetworkReply::ConnectionRefusedError:
errorString = "Connection refused";
break;
case QNetworkReply::RemoteHostClosedError:
errorString = "Remote host closed the connection";
break;
case QNetworkReply::HostNotFoundError:
errorString = "Host not found";
break;
case QNetworkReply::TimeoutError:
errorString = "Timeout";
break;
case QNetworkReply::ProxyConnectionRefusedError:
case QNetworkReply::ProxyConnectionClosedError:
case QNetworkReply::ProxyNotFoundError:
case QNetworkReply::ProxyTimeoutError:
case QNetworkReply::ProxyAuthenticationRequiredError:
case QNetworkReply::UnknownProxyError:
errorString = "Proxy error";
break;
case QNetworkReply::ContentAccessDenied:
errorString = "Access denied";
break;
case QNetworkReply::ContentNotFoundError:
errorString = "File not found";
break;
case QNetworkReply::AuthenticationRequiredError:
errorString = "Authentication required";
break;
};
error.setDescription(QLatin1String(errorString));
setError(error);
}
/*!
Called if \a blob, which was previously waited for, has an error.
The default implementation does nothing.
*/
void QDeclarativeDataBlob::dependencyError(QDeclarativeDataBlob *blob)
{
Q_UNUSED(blob);
}
/*!
Called if \a blob, which was previously waited for, has completed.
The default implementation does nothing.
*/
void QDeclarativeDataBlob::dependencyComplete(QDeclarativeDataBlob *blob)
{
Q_UNUSED(blob);
}
/*!
Called when all blobs waited for have completed. This occurs regardless of
whether they are in error, or complete state.
The default implementation does nothing.
*/
void QDeclarativeDataBlob::allDependenciesDone()
{
}
/*!
Called when the download progress of this blob changes. \a progress goes
from 0 to 1.
*/
void QDeclarativeDataBlob::downloadProgressChanged(qreal progress)
{
Q_UNUSED(progress);
}
void QDeclarativeDataBlob::tryDone()
{
if (status() != Loading && m_waitingFor.isEmpty() && !m_isDone) {
if (status() != Error)
m_status = Complete;
m_isDone = true;
done();
notifyAllWaitingOnMe();
}
}
void QDeclarativeDataBlob::cancelAllWaitingFor()
{
while (m_waitingFor.count()) {
QDeclarativeDataBlob *blob = m_waitingFor.takeLast();
Q_ASSERT(blob->m_waitingOnMe.contains(this));
blob->m_waitingOnMe.removeOne(this);
blob->release();
}
}
void QDeclarativeDataBlob::notifyAllWaitingOnMe()
{
while (m_waitingOnMe.count()) {
QDeclarativeDataBlob *blob = m_waitingOnMe.takeLast();
Q_ASSERT(blob->m_waitingFor.contains(this));
blob->notifyComplete(this);
}
}
void QDeclarativeDataBlob::notifyComplete(QDeclarativeDataBlob *blob)
{
Q_ASSERT(m_waitingFor.contains(blob));
Q_ASSERT(blob->status() == Error || blob->status() == Complete);
m_inCallback = true;
if (blob->status() == Error) {
dependencyError(blob);
} else if (blob->status() == Complete) {
dependencyComplete(blob);
}
m_waitingFor.removeOne(blob);
blob->release();
if (!isError() && m_waitingFor.isEmpty())
allDependenciesDone();
m_inCallback = false;
tryDone();
}
/*!
\class QDeclarativeDataLoader
\brief The QDeclarativeDataLoader class abstracts loading files and their dependecies over the network.
\internal
The QDeclarativeDataLoader class is provided for the exclusive use of the QDeclarativeTypeLoader class.
Clients create QDeclarativeDataBlob instances and submit them to the QDeclarativeDataLoader class
through the QDeclarativeDataLoader::load() or QDeclarativeDataLoader::loadWithStaticData() methods.
The loader then fetches the data over the network or from the local file system in an efficient way.
QDeclarativeDataBlob is an abstract class, so should always be specialized.
Once data is received, the QDeclarativeDataBlob::dataReceived() method is invoked on the blob. The
derived class should use this callback to process the received data. Processing of the data can
result in an error being set (QDeclarativeDataBlob::setError()), or one or more dependencies being
created (QDeclarativeDataBlob::addDependency()). Dependencies are other QDeclarativeDataBlob's that
are required before processing can fully complete.
To complete processing, the QDeclarativeDataBlob::done() callback is invoked. done() is called when
one of these three preconditions are met.
1. The QDeclarativeDataBlob has no dependencies.
2. The QDeclarativeDataBlob has an error set.
3. All the QDeclarativeDataBlob's dependencies are themselves "done()".
Thus QDeclarativeDataBlob::done() will always eventually be called, even if the blob has an error set.
*/
/*!
Create a new QDeclarativeDataLoader for \a engine.
*/
QDeclarativeDataLoader::QDeclarativeDataLoader(QDeclarativeEngine *engine)
: m_engine(engine)
{
}
/*! \internal */
QDeclarativeDataLoader::~QDeclarativeDataLoader()
{
for (NetworkReplies::Iterator iter = m_networkReplies.begin(); iter != m_networkReplies.end(); ++iter)
(*iter)->release();
}
/*!
Load the provided \a blob from the network or filesystem.
*/
void QDeclarativeDataLoader::load(QDeclarativeDataBlob *blob)
{
Q_ASSERT(blob->status() == QDeclarativeDataBlob::Null);
Q_ASSERT(blob->m_manager == 0);
blob->m_status = QDeclarativeDataBlob::Loading;
if (blob->m_url.isEmpty()) {
QDeclarativeError error;
error.setDescription(QLatin1String("Invalid null URL"));
blob->setError(error);
return;
}
QString lf = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(blob->m_url);
if (!lf.isEmpty()) {
if (!QDeclarative_isFileCaseCorrect(lf)) {
QDeclarativeError error;
error.setUrl(blob->m_url);
error.setDescription(QLatin1String("File name case mismatch"));
blob->setError(error);
return;
}
QFile file(lf);
if (file.open(QFile::ReadOnly)) {
QByteArray data = file.readAll();
blob->m_progress = 1.;
blob->downloadProgressChanged(1.);
setData(blob, data);
} else {
blob->networkError(QNetworkReply::ContentNotFoundError);
}
} else {
blob->m_manager = this;
QNetworkReply *reply = m_engine->networkAccessManager()->get(QNetworkRequest(blob->m_url));
QObject::connect(reply, SIGNAL(downloadProgress(qint64,qint64)),
this, SLOT(networkReplyProgress(qint64,qint64)));
QObject::connect(reply, SIGNAL(finished()),
this, SLOT(networkReplyFinished()));
m_networkReplies.insert(reply, blob);
blob->addref();
}
}
#define DATALOADER_MAXIMUM_REDIRECT_RECURSION 16
void QDeclarativeDataLoader::networkReplyFinished()
{
QNetworkReply *reply = static_cast<QNetworkReply *>(sender());
reply->deleteLater();
QDeclarativeDataBlob *blob = m_networkReplies.take(reply);
Q_ASSERT(blob);
blob->m_redirectCount++;
if (blob->m_redirectCount < DATALOADER_MAXIMUM_REDIRECT_RECURSION) {
QVariant redirect = reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
if (redirect.isValid()) {
QUrl url = reply->url().resolved(redirect.toUrl());
blob->m_finalUrl = url;
QNetworkReply *reply = m_engine->networkAccessManager()->get(QNetworkRequest(url));
QObject::connect(reply, SIGNAL(finished()), this, SLOT(networkReplyFinished()));
m_networkReplies.insert(reply, blob);
return;
}
}
if (reply->error()) {
blob->networkError(reply->error());
} else {
QByteArray data = reply->readAll();
setData(blob, data);
}
blob->release();
}
void QDeclarativeDataLoader::networkReplyProgress(qint64 bytesReceived, qint64 bytesTotal)
{
QNetworkReply *reply = static_cast<QNetworkReply *>(sender());
QDeclarativeDataBlob *blob = m_networkReplies.value(reply);
Q_ASSERT(blob);
if (bytesTotal != 0) {
blob->m_progress = bytesReceived / bytesTotal;
blob->downloadProgressChanged(blob->m_progress);
}
}
/*!
Load the provided \a blob with \a data. The blob's URL is not used by the data loader in this case.
*/
void QDeclarativeDataLoader::loadWithStaticData(QDeclarativeDataBlob *blob, const QByteArray &data)
{
Q_ASSERT(blob->status() == QDeclarativeDataBlob::Null);
Q_ASSERT(blob->m_manager == 0);
blob->m_status = QDeclarativeDataBlob::Loading;
setData(blob, data);
}
/*!
Return the QDeclarativeEngine associated with this loader
*/
QDeclarativeEngine *QDeclarativeDataLoader::engine() const
{
return m_engine;
}
void QDeclarativeDataLoader::setData(QDeclarativeDataBlob *blob, const QByteArray &data)
{
blob->m_inCallback = true;
blob->dataReceived(data);
if (!blob->isError() && !blob->isWaiting())
blob->allDependenciesDone();
if (blob->status() != QDeclarativeDataBlob::Error)
blob->m_status = QDeclarativeDataBlob::WaitingForDependencies;
blob->m_inCallback = false;
blob->tryDone();
}
/*!
\class QDeclarativeTypeLoader
*/
QDeclarativeTypeLoader::QDeclarativeTypeLoader(QDeclarativeEngine *engine)
: QDeclarativeDataLoader(engine)
{
}
QDeclarativeTypeLoader::~QDeclarativeTypeLoader()
{
clearCache();
}
/*!
Return a QDeclarativeTypeData for \a url. The QDeclarativeTypeData may be cached.
*/
QDeclarativeTypeData *QDeclarativeTypeLoader::get(const QUrl &url)
{
Q_ASSERT(!url.isRelative() &&
(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url).isEmpty() ||
!QDir::isRelativePath(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url))));
QDeclarativeTypeData *typeData = m_typeCache.value(url);
if (!typeData) {
typeData = new QDeclarativeTypeData(url, None, this);
m_typeCache.insert(url, typeData);
QDeclarativeDataLoader::load(typeData);
}
typeData->addref();
return typeData;
}
/*!
Return a QDeclarativeTypeData for \a data with the provided base \a url. The
QDeclarativeTypeData will not be cached.
*/
QDeclarativeTypeData *QDeclarativeTypeLoader::get(const QByteArray &data, const QUrl &url, Options options)
{
QDeclarativeTypeData *typeData = new QDeclarativeTypeData(url, options, this);
QDeclarativeDataLoader::loadWithStaticData(typeData, data);
return typeData;
}
/*!
Return a QDeclarativeScriptData for \a url. The QDeclarativeScriptData may be cached.
*/
QDeclarativeScriptData *QDeclarativeTypeLoader::getScript(const QUrl &url)
{
Q_ASSERT(!url.isRelative() &&
(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url).isEmpty() ||
!QDir::isRelativePath(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url))));
QDeclarativeScriptData *scriptData = m_scriptCache.value(url);
if (!scriptData) {
scriptData = new QDeclarativeScriptData(url);
m_scriptCache.insert(url, scriptData);
QDeclarativeDataLoader::load(scriptData);
}
scriptData->addref();
return scriptData;
}
/*!
Return a QDeclarativeQmldirData for \a url. The QDeclarativeQmldirData may be cached.
*/
QDeclarativeQmldirData *QDeclarativeTypeLoader::getQmldir(const QUrl &url)
{
Q_ASSERT(!url.isRelative() &&
(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url).isEmpty() ||
!QDir::isRelativePath(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url))));
QDeclarativeQmldirData *qmldirData = m_qmldirCache.value(url);
if (!qmldirData) {
qmldirData = new QDeclarativeQmldirData(url);
m_qmldirCache.insert(url, qmldirData);
QDeclarativeDataLoader::load(qmldirData);
}
qmldirData->addref();
return qmldirData;
}
void QDeclarativeTypeLoader::clearCache()
{
for (TypeCache::Iterator iter = m_typeCache.begin(); iter != m_typeCache.end(); ++iter)
(*iter)->release();
for (ScriptCache::Iterator iter = m_scriptCache.begin(); iter != m_scriptCache.end(); ++iter)
(*iter)->release();
for (QmldirCache::Iterator iter = m_qmldirCache.begin(); iter != m_qmldirCache.end(); ++iter)
(*iter)->release();
m_typeCache.clear();
m_scriptCache.clear();
m_qmldirCache.clear();
}
QDeclarativeTypeData::QDeclarativeTypeData(const QUrl &url, QDeclarativeTypeLoader::Options options,
QDeclarativeTypeLoader *manager)
: QDeclarativeDataBlob(url, QmlFile), m_options(options), m_typesResolved(false),
m_compiledData(0), m_typeLoader(manager)
{
}
QDeclarativeTypeData::~QDeclarativeTypeData()
{
for (int ii = 0; ii < m_scripts.count(); ++ii)
m_scripts.at(ii).script->release();
for (int ii = 0; ii < m_qmldirs.count(); ++ii)
m_qmldirs.at(ii)->release();
for (int ii = 0; ii < m_types.count(); ++ii)
if (m_types.at(ii).typeData) m_types.at(ii).typeData->release();
if (m_compiledData)
m_compiledData->release();
}
QDeclarativeTypeLoader *QDeclarativeTypeData::typeLoader() const
{
return m_typeLoader;
}
const QDeclarativeImports &QDeclarativeTypeData::imports() const
{
return m_imports;
}
const QDeclarativeScriptParser &QDeclarativeTypeData::parser() const
{
return scriptParser;
}
const QList<QDeclarativeTypeData::TypeReference> &QDeclarativeTypeData::resolvedTypes() const
{
return m_types;
}
const QList<QDeclarativeTypeData::ScriptReference> &QDeclarativeTypeData::resolvedScripts() const
{
return m_scripts;
}
QDeclarativeCompiledData *QDeclarativeTypeData::compiledData() const
{
if (m_compiledData)
m_compiledData->addref();
return m_compiledData;
}
void QDeclarativeTypeData::registerCallback(TypeDataCallback *callback)
{
Q_ASSERT(!m_callbacks.contains(callback));
m_callbacks.append(callback);
}
void QDeclarativeTypeData::unregisterCallback(TypeDataCallback *callback)
{
Q_ASSERT(m_callbacks.contains(callback));
m_callbacks.removeOne(callback);
Q_ASSERT(!m_callbacks.contains(callback));
}
void QDeclarativeTypeData::done()
{
addref();
// Check all script dependencies for errors
for (int ii = 0; !isError() && ii < m_scripts.count(); ++ii) {
const ScriptReference &script = m_scripts.at(ii);
Q_ASSERT(script.script->isCompleteOrError());
if (script.script->isError()) {
QList<QDeclarativeError> errors = script.script->errors();
QDeclarativeError error;
error.setUrl(finalUrl());
error.setLine(script.location.line);
error.setColumn(script.location.column);
error.setDescription(QDeclarativeTypeLoader::tr("Script %1 unavailable").arg(script.script->url().toString()));
errors.prepend(error);
setError(errors);
}
}
// Check all type dependencies for errors
for (int ii = 0; !isError() && ii < m_types.count(); ++ii) {
const TypeReference &type = m_types.at(ii);
Q_ASSERT(!type.typeData || type.typeData->isCompleteOrError());
if (type.typeData && type.typeData->isError()) {
QString typeName = scriptParser.referencedTypes().at(ii)->name;
QList<QDeclarativeError> errors = type.typeData->errors();
QDeclarativeError error;
error.setUrl(finalUrl());
error.setLine(type.location.line);
error.setColumn(type.location.column);
error.setDescription(QDeclarativeTypeLoader::tr("Type %1 unavailable").arg(typeName));
errors.prepend(error);
setError(errors);
}
}
// Compile component
if (!isError())
compile();
if (!(m_options & QDeclarativeTypeLoader::PreserveParser))
scriptParser.clear();
// Notify callbacks
while (!m_callbacks.isEmpty()) {
TypeDataCallback *callback = m_callbacks.takeFirst();
callback->typeDataReady(this);
}
release();
}
void QDeclarativeTypeData::dataReceived(const QByteArray &data)
{
if (!scriptParser.parse(data, finalUrl())) {
setError(scriptParser.errors());
return;
}
m_imports.setBaseUrl(finalUrl());
foreach (const QDeclarativeScriptParser::Import &import, scriptParser.imports()) {
if (import.type == QDeclarativeScriptParser::Import::File && import.qualifier.isEmpty()) {
QUrl importUrl = finalUrl().resolved(QUrl(import.uri + QLatin1String("/qmldir")));
if (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(importUrl).isEmpty()) {
QDeclarativeQmldirData *data = typeLoader()->getQmldir(importUrl);
addDependency(data);
m_qmldirs << data;
}
} else if (import.type == QDeclarativeScriptParser::Import::Script) {
QUrl scriptUrl = finalUrl().resolved(QUrl(import.uri));
QDeclarativeScriptData *data = typeLoader()->getScript(scriptUrl);
addDependency(data);
ScriptReference ref;
ref.location = import.location.start;
ref.qualifier = import.qualifier;
ref.script = data;
m_scripts << ref;
}
}
if (!finalUrl().scheme().isEmpty()) {
QUrl importUrl = finalUrl().resolved(QUrl(QLatin1String("qmldir")));
if (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(importUrl).isEmpty()) {
QDeclarativeQmldirData *data = typeLoader()->getQmldir(importUrl);
addDependency(data);
m_qmldirs << data;
}
}
}
void QDeclarativeTypeData::allDependenciesDone()
{
if (!m_typesResolved) {
resolveTypes();
m_typesResolved = true;
}
}
void QDeclarativeTypeData::downloadProgressChanged(qreal p)
{
for (int ii = 0; ii < m_callbacks.count(); ++ii) {
TypeDataCallback *callback = m_callbacks.at(ii);
callback->typeDataProgress(this, p);
}
}
void QDeclarativeTypeData::compile()
{
Q_ASSERT(m_compiledData == 0);
m_compiledData = new QDeclarativeCompiledData(typeLoader()->engine());
m_compiledData->url = m_imports.baseUrl();
m_compiledData->name = m_compiledData->url.toString();
QDeclarativeCompiler compiler;
if (!compiler.compile(typeLoader()->engine(), this, m_compiledData)) {
setError(compiler.errors());
m_compiledData->release();
m_compiledData = 0;
}
}
void QDeclarativeTypeData::resolveTypes()
{
QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(m_typeLoader->engine());
QDeclarativeImportDatabase *importDatabase = &ep->importDatabase;
// For local urls, add an implicit import "." as first (most overridden) lookup.
// This will also trigger the loading of the qmldir and the import of any native
// types from available plugins.
if (QDeclarativeQmldirData *qmldir = qmldirForUrl(finalUrl().resolved(QUrl(QLatin1String("./qmldir"))))) {
m_imports.addImport(importDatabase, QLatin1String("."),
QString(), -1, -1, QDeclarativeScriptParser::Import::File,
qmldir->dirComponents(), 0);
} else {
m_imports.addImport(importDatabase, QLatin1String("."),
QString(), -1, -1, QDeclarativeScriptParser::Import::File,
QDeclarativeDirComponents(), 0);
}
foreach (const QDeclarativeScriptParser::Import &import, scriptParser.imports()) {
QDeclarativeDirComponents qmldircomponentsnetwork;
if (import.type == QDeclarativeScriptParser::Import::Script)
continue;
if (import.type == QDeclarativeScriptParser::Import::File && import.qualifier.isEmpty()) {
QUrl qmldirUrl = finalUrl().resolved(QUrl(import.uri + QLatin1String("/qmldir")));
if (QDeclarativeQmldirData *qmldir = qmldirForUrl(qmldirUrl))
qmldircomponentsnetwork = qmldir->dirComponents();
}
int vmaj = -1;
int vmin = -1;
if (!import.version.isEmpty()) {
int dot = import.version.indexOf(QLatin1Char('.'));
if (dot < 0) {
vmaj = import.version.toInt();
vmin = 0;
} else {
vmaj = import.version.left(dot).toInt();
vmin = import.version.mid(dot+1).toInt();
}
}
QString errorString;
if (!m_imports.addImport(importDatabase, import.uri, import.qualifier,
vmaj, vmin, import.type, qmldircomponentsnetwork, &errorString)) {
QDeclarativeError error;
error.setUrl(m_imports.baseUrl());
error.setDescription(errorString);
error.setLine(import.location.start.line);
error.setColumn(import.location.start.column);
setError(error);
return;
}
}
foreach (QDeclarativeScriptParser::TypeReference *parserRef, scriptParser.referencedTypes()) {
QByteArray typeName = parserRef->name.toUtf8();
TypeReference ref;
QUrl url;
int majorVersion;
int minorVersion;
QDeclarativeImportedNamespace *typeNamespace = 0;
QString errorString;
if (!m_imports.resolveType(typeName, &ref.type, &url, &majorVersion, &minorVersion,
&typeNamespace, &errorString) || typeNamespace) {
// Known to not be a type:
// - known to be a namespace (Namespace {})
// - type with unknown namespace (UnknownNamespace.SomeType {})
QDeclarativeError error;
error.setUrl(m_imports.baseUrl());
QString userTypeName = parserRef->name;
userTypeName.replace(QLatin1Char('/'),QLatin1Char('.'));
if (typeNamespace)
error.setDescription(QDeclarativeTypeLoader::tr("Namespace %1 cannot be used as a type").arg(userTypeName));
else
error.setDescription(QDeclarativeTypeLoader::tr("%1 %2").arg(userTypeName).arg(errorString));
if (!parserRef->refObjects.isEmpty()) {
QDeclarativeParser::Object *obj = parserRef->refObjects.first();
error.setLine(obj->location.start.line);
error.setColumn(obj->location.start.column);
}
setError(error);
return;
}
if (ref.type) {
foreach (QDeclarativeParser::Object *obj, parserRef->refObjects) {
// store namespace for DOM
obj->majorVersion = majorVersion;
obj->minorVersion = minorVersion;
}
} else {
ref.typeData = typeLoader()->get(url);
addDependency(ref.typeData);
}
if (parserRef->refObjects.count())
ref.location = parserRef->refObjects.first()->location.start;
m_types << ref;
}
}
QDeclarativeQmldirData *QDeclarativeTypeData::qmldirForUrl(const QUrl &url)
{
for (int ii = 0; ii < m_qmldirs.count(); ++ii) {
if (m_qmldirs.at(ii)->url() == url)
return m_qmldirs.at(ii);
}
return 0;
}
QDeclarativeScriptData::QDeclarativeScriptData(const QUrl &url)
: QDeclarativeDataBlob(url, JavaScriptFile), m_pragmas(QDeclarativeParser::Object::ScriptBlock::None)
{
}
QDeclarativeParser::Object::ScriptBlock::Pragmas QDeclarativeScriptData::pragmas() const
{
return m_pragmas;
}
QString QDeclarativeScriptData::scriptSource() const
{
return m_source;
}
void QDeclarativeScriptData::dataReceived(const QByteArray &data)
{
m_source = QString::fromUtf8(data);
m_pragmas = QDeclarativeScriptParser::extractPragmas(m_source);
}
QDeclarativeQmldirData::QDeclarativeQmldirData(const QUrl &url)
: QDeclarativeDataBlob(url, QmldirFile)
{
}
const QDeclarativeDirComponents &QDeclarativeQmldirData::dirComponents() const
{
return m_components;
}
void QDeclarativeQmldirData::dataReceived(const QByteArray &data)
{
QDeclarativeDirParser parser;
parser.setSource(QString::fromUtf8(data));
parser.parse();
m_components = parser.components();
}
QT_END_NAMESPACE
|