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MATLAB class containing methods for programmatic uifigure modification
http://undocumentedmatlab.com/blog/customizing-uifigures-part-2
MIT License
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Error using mlapptools.getWebElements #25

Open thiblab opened 6 years ago

thiblab commented 6 years ago

Summary

I am having troubles when using the following function : [win, widgetID] = mlapptools.getWebElements(app.TabGroup);

The issue is quite random. I can have issue 1 or issue 2, you can find below. I don't understand any of them. About issue 2 I looked what has been said about it on Matlab forum, like upgrade driver etc.. But I did it, tried the function on several computer and I still have it.

Problem Description

Issue 1 :

errorappdesigner

Issue 2 :

MATLAB crash file:C:\Users\hserus\AppData\Local\Temp\matlab_crash_dump.22480-1:

--------------------------------------------------------------------------------
         Access violation detected at mar. oct. 09 11:43:01 2018 +0200
--------------------------------------------------------------------------------

Configuration:
  Crash Decoding           : Disabled - No sandbox or build area path
  Crash Mode               : continue (default)
  Default Encoding         : windows-1252
  Deployed                 : false
  Graphics Driver          : Unknown hardware 
  Graphics card 1          : Intel Corporation ( 0x8086 ) Intel(R) HD Graphics 520 Version 23.20.16.4973 (2018-2-28)
  Java Version             : Java 1.8.0_152-b16 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
  MATLAB Architecture      : win64
  MATLAB Entitlement ID    : 3250676
  MATLAB Root              : C:\Program Files\MATLAB\R2018b
  MATLAB Version           : 9.5.0.944444 (R2018b)
  OpenGL                   : hardware
  Operating System         : Microsoft Windows 10 Professionnel
  Process ID               : 22480
  Processor ID             : x86 Family 6 Model 78 Stepping 3, GenuineIntel
  Session Key              : 7c2dcbac-278d-4f02-8001-dac683515e68
  Window System            : Version 10.0 (Build 17134)

Fault Count: 1

Abnormal termination

Register State (from fault):
  RAX = 000000000cf85b7e  RBX = 0000000300000000
  RCX = 0000000005f87ac0  RDX = 0000000000000003
  RSP = 00000000043f14c0  RBP = 0000000005f87ac0
  RSI = 0000000005f86be0  RDI = 000000000cf85b6f

   R8 = 0000000000000001   R9 = 0000000005f87ac0
  R10 = 000000004393e188  R11 = 00000000043f1560
  R12 = 0000000000000003  R13 = 000000003248cd00
  R14 = 0000000000000002  R15 = 0000000000000000

  RIP = 0000000180004c96  EFL = 00010203

   CS = 0033   FS = 0053   GS = 002b

Stack Trace (from fault):
[  0] 0x0000000180004c96                            bin\win64\pgo\libmx.dll+00019606 matrix::detail::noninlined::mx_array_api::mxUnshare+00004650
[  1] 0x000000018000de19                            bin\win64\pgo\libmx.dll+00056857 matrix::detail::noninlined::mx_array_api::mxPreparePropertyValueForContainment+00000217
[  2] 0x000000018000246d                            bin\win64\pgo\libmx.dll+00009325 matrix::detail::noninlined::mx_array_api::mxSetFieldByNumber+00000133
[  3] 0x00000000326e7a3c                        bin\win64\pgo\mcos_impl.dll+02849340 mwboost::serialization::singleton_module::unlock+01552008
[  4] 0x0000000032480c12                        bin\win64\pgo\mcos_impl.dll+00330770
[  5] 0x000000003247ba69                        bin\win64\pgo\mcos_impl.dll+00309865
[  6] 0x00000000326e2719                        bin\win64\pgo\mcos_impl.dll+02828057 mwboost::serialization::singleton_module::unlock+01530725
[  7] 0x0000000180039b5c                            bin\win64\pgo\libmx.dll+00236380 mxArray_tag::operator delete+00040924
[  8] 0x0000000180010296                            bin\win64\pgo\libmx.dll+00066198 matrix::detail::noninlined::mx_array_api::mxMustBe+00000138
[  9] 0x00000000e63916fa                 bin\win64\cellstructconversion.dll+00005882
[ 10] 0x000000001b33b724                     bin\win64\pgo\m_dispatcher.dll+00046884 Mdispatcher::getDispatcher+00002228
[ 11] 0x000000001b33cbe7                     bin\win64\pgo\m_dispatcher.dll+00052199 Mfh_MATLAB_fn_impl::dispatch_fh+00000343
[ 12] 0x000000001c1268f2                            bin\win64\pgo\m_lxe.dll+00420082
[ 13] 0x000000001c20fd3c                            bin\win64\pgo\m_lxe.dll+01375548 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00493568
[ 14] 0x000000001c21091c                            bin\win64\pgo\m_lxe.dll+01378588 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00496608
[ 15] 0x000000001c211c92                            bin\win64\pgo\m_lxe.dll+01383570 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501590
[ 16] 0x000000001c2128f8                            bin\win64\pgo\m_lxe.dll+01386744 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00504764
[ 17] 0x000000001c211ddf                            bin\win64\pgo\m_lxe.dll+01383903 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501923
[ 18] 0x000000001c211ede                            bin\win64\pgo\m_lxe.dll+01384158 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00502178
[ 19] 0x000000001c119a7d                            bin\win64\pgo\m_lxe.dll+00367229
[ 20] 0x000000001c12b265                            bin\win64\pgo\m_lxe.dll+00438885
[ 21] 0x000000001c128e26                            bin\win64\pgo\m_lxe.dll+00429606
[ 22] 0x000000001c128a24                            bin\win64\pgo\m_lxe.dll+00428580
[ 23] 0x000000001b33e007                     bin\win64\pgo\m_dispatcher.dll+00057351 Mfh_file::dispatch_fh_impl+00001111
[ 24] 0x000000001b33daf2                     bin\win64\pgo\m_dispatcher.dll+00056050 Mfh_file::dispatch_fh_with_reuse+00000066
[ 25] 0x0000000032499dc3                        bin\win64\pgo\mcos_impl.dll+00433603
[ 26] 0x0000000032494826                        bin\win64\pgo\mcos_impl.dll+00411686
[ 27] 0x000000003249347f                        bin\win64\pgo\mcos_impl.dll+00406655
[ 28] 0x000000003249234b                        bin\win64\pgo\mcos_impl.dll+00402251
[ 29] 0x0000000032492130                        bin\win64\pgo\mcos_impl.dll+00401712
[ 30] 0x0000000032491a3a                        bin\win64\pgo\mcos_impl.dll+00399930
[ 31] 0x000000001b33ca07                     bin\win64\pgo\m_dispatcher.dll+00051719 Mfh_MATLAB_fn_impl::dispatch_fh_with_reuse+00000343
[ 32] 0x000000001c1e263c                            bin\win64\pgo\m_lxe.dll+01189436 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00307456
[ 33] 0x000000001c11b8e7                            bin\win64\pgo\m_lxe.dll+00375015
[ 34] 0x000000001dbee1a1                            bin\win64\pgo\m_lxe.dll+28500385 mwboost::archive::detail::pointer_oserializer<mwboost::archive::binaryTerm_oarchive,MathWorks::lxe::MatlabIrTree>::save_object_ptr+00359557
[ 35] 0x000000001dbf729f                            bin\win64\pgo\m_lxe.dll+28537503 mwboost::archive::detail::pointer_oserializer<mwboost::archive::binaryTerm_oarchive,MathWorks::lxe::MatlabIrTree>::save_object_ptr+00396675
[ 36] 0x000000001c20fbfe                            bin\win64\pgo\m_lxe.dll+01375230 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00493250
[ 37] 0x000000001c21091c                            bin\win64\pgo\m_lxe.dll+01378588 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00496608
[ 38] 0x000000001c211c92                            bin\win64\pgo\m_lxe.dll+01383570 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501590
[ 39] 0x000000001c2128f8                            bin\win64\pgo\m_lxe.dll+01386744 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00504764
[ 40] 0x000000001c211ddf                            bin\win64\pgo\m_lxe.dll+01383903 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501923
[ 41] 0x000000001c211ede                            bin\win64\pgo\m_lxe.dll+01384158 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00502178
[ 42] 0x000000001c119a7d                            bin\win64\pgo\m_lxe.dll+00367229
[ 43] 0x000000001c12b265                            bin\win64\pgo\m_lxe.dll+00438885
[ 44] 0x000000001c128e26                            bin\win64\pgo\m_lxe.dll+00429606
[ 45] 0x000000001c128a24                            bin\win64\pgo\m_lxe.dll+00428580
[ 46] 0x000000001b33e007                     bin\win64\pgo\m_dispatcher.dll+00057351 Mfh_file::dispatch_fh_impl+00001111
[ 47] 0x000000001b33daf2                     bin\win64\pgo\m_dispatcher.dll+00056050 Mfh_file::dispatch_fh_with_reuse+00000066
[ 48] 0x0000000032499dc3                        bin\win64\pgo\mcos_impl.dll+00433603
[ 49] 0x0000000032494826                        bin\win64\pgo\mcos_impl.dll+00411686
[ 50] 0x000000003249347f                        bin\win64\pgo\mcos_impl.dll+00406655
[ 51] 0x000000003249234b                        bin\win64\pgo\mcos_impl.dll+00402251
[ 52] 0x0000000032492130                        bin\win64\pgo\mcos_impl.dll+00401712
[ 53] 0x0000000032491a3a                        bin\win64\pgo\mcos_impl.dll+00399930
[ 54] 0x000000001b33ca07                     bin\win64\pgo\m_dispatcher.dll+00051719 Mfh_MATLAB_fn_impl::dispatch_fh_with_reuse+00000343
[ 55] 0x000000001c1e263c                            bin\win64\pgo\m_lxe.dll+01189436 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00307456
[ 56] 0x000000001c11b8e7                            bin\win64\pgo\m_lxe.dll+00375015
[ 57] 0x000000001c2db5b9                            bin\win64\pgo\m_lxe.dll+02209209 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,std::vector<MathWorks::utl::attach_ptr<ir::IrTree>,std::allocator<MathWorks::utl::attach_ptr<ir::IrTree> > > >::load_object_data+00032749
[ 58] 0x000000001c114ceb                            bin\win64\pgo\m_lxe.dll+00347371
[ 59] 0x000000001c2a5cb3                            bin\win64\pgo\m_lxe.dll+01989811 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+01107831
[ 60] 0x000000001c2a5c35                            bin\win64\pgo\m_lxe.dll+01989685 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+01107705
[ 61] 0x000000001c20fd3c                            bin\win64\pgo\m_lxe.dll+01375548 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00493568
[ 62] 0x000000001c21091c                            bin\win64\pgo\m_lxe.dll+01378588 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00496608
[ 63] 0x000000001c211c92                            bin\win64\pgo\m_lxe.dll+01383570 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501590
[ 64] 0x000000001c2128f8                            bin\win64\pgo\m_lxe.dll+01386744 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00504764
[ 65] 0x000000001c211ddf                            bin\win64\pgo\m_lxe.dll+01383903 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501923
[ 66] 0x000000001c211ede                            bin\win64\pgo\m_lxe.dll+01384158 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00502178
[ 67] 0x000000001c119a7d                            bin\win64\pgo\m_lxe.dll+00367229
[ 68] 0x000000001c12b265                            bin\win64\pgo\m_lxe.dll+00438885
[ 69] 0x000000001c12a88c                            bin\win64\pgo\m_lxe.dll+00436364
[ 70] 0x000000001c12447d                            bin\win64\pgo\m_lxe.dll+00410749
[ 71] 0x000000001c123875                            bin\win64\pgo\m_lxe.dll+00407669
[ 72] 0x000000001c1234bc                            bin\win64\pgo\m_lxe.dll+00406716
[ 73] 0x000000001c123268                            bin\win64\pgo\m_lxe.dll+00406120
[ 74] 0x000000001c1e32e8                            bin\win64\pgo\m_lxe.dll+01192680 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00310700
[ 75] 0x000000001d7fdbda                            bin\win64\pgo\m_lxe.dll+24370138 mwboost::serialization::singleton<mwboost::archive::detail::extra_detail::guid_initializer<MathWorks::lxe::CodeClearEvent> >::get_mutable_instance+21916030
[ 76] 0x000000001bcf16a5                    bin\win64\pgo\m_interpreter.dll+00071333 inRunSaveObjFunction+00000313
[ 77] 0x000000001b33b724                     bin\win64\pgo\m_dispatcher.dll+00046884 Mdispatcher::getDispatcher+00002228
[ 78] 0x000000001b33cbe7                     bin\win64\pgo\m_dispatcher.dll+00052199 Mfh_MATLAB_fn_impl::dispatch_fh+00000343
[ 79] 0x000000001c1268f2                            bin\win64\pgo\m_lxe.dll+00420082
[ 80] 0x000000001c20fd3c                            bin\win64\pgo\m_lxe.dll+01375548 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00493568
[ 81] 0x000000001c21091c                            bin\win64\pgo\m_lxe.dll+01378588 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00496608
[ 82] 0x000000001c211c92                            bin\win64\pgo\m_lxe.dll+01383570 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501590
[ 83] 0x000000001c2128f8                            bin\win64\pgo\m_lxe.dll+01386744 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00504764
[ 84] 0x000000001c211ddf                            bin\win64\pgo\m_lxe.dll+01383903 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00501923
[ 85] 0x000000001c211ede                            bin\win64\pgo\m_lxe.dll+01384158 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00502178
[ 86] 0x000000001c119a7d                            bin\win64\pgo\m_lxe.dll+00367229
[ 87] 0x000000001c12b265                            bin\win64\pgo\m_lxe.dll+00438885
[ 88] 0x000000001c12a88c                            bin\win64\pgo\m_lxe.dll+00436364
[ 89] 0x000000001c1f470a                            bin\win64\pgo\m_lxe.dll+01263370 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00381390
[ 90] 0x000000001c1263ab                            bin\win64\pgo\m_lxe.dll+00418731
[ 91] 0x000000001c1f455c                            bin\win64\pgo\m_lxe.dll+01262940 mwboost::archive::detail::iserializer<mwboost::archive::binaryTerm_iarchive,MathWorks::lxe::function_descriptor>::load_object_data+00380960
[ 92] 0x000000000b2f463b C:\Program Files\MATLAB\R2018b\toolbox\matlab\appdesigner\appdesigner\+appdesigner\+internal\+serialization\defer.mexw64+00149051
[ 93] 0x000000000b2d967d C:\Program Files\MATLAB\R2018b\toolbox\matlab\appdesigner\appdesigner\+appdesigner\+internal\+serialization\defer.mexw64+00038525
[ 94] 0x000000000b2ee8f4 C:\Program Files\MATLAB\R2018b\toolbox\matlab\appdesigner\appdesigner\+appdesigner\+internal\+serialization\defer.mexw64+00125172
[ 95] 0x00000000fd02cfee                                  bin\win64\iqm.dll+00643054 iqm::PackagedTaskPlugin::execute+00000894
[ 96] 0x00000000fd02ce63                                  bin\win64\iqm.dll+00642659 iqm::PackagedTaskPlugin::execute+00000499
[ 97] 0x000000001b1741fb                                  bin\win64\mcr.dll+00541179 mcrRegisterExternalFunction+00041003
[ 98] 0x00000000fcffcc07                                  bin\win64\iqm.dll+00445447 iqm::Iqm::setupIqmFcnPtrs+00076215
[ 99] 0x00000000fcffcc59                                  bin\win64\iqm.dll+00445529 iqm::Iqm::setupIqmFcnPtrs+00076297
[100] 0x00000000fcffca16                                  bin\win64\iqm.dll+00444950 iqm::Iqm::setupIqmFcnPtrs+00075718
[101] 0x00000000fcfd888d                                  bin\win64\iqm.dll+00297101 iqm::Iqm::deliver+00002109
[102] 0x00000000fb5fe634                          bin\win64\libmwbridge.dll+00058932 ioReadLine+00000772
[103] 0x00000000fb5fe3fd                          bin\win64\libmwbridge.dll+00058365 ioReadLine+00000205
[104] 0x00000000fb60fd4b                          bin\win64\libmwbridge.dll+00130379 mnDebugPrompt+00002155
[105] 0x00000000fb60f615                          bin\win64\libmwbridge.dll+00128533 mnDebugPrompt+00000309
[106] 0x00000000fb6100b4                          bin\win64\libmwbridge.dll+00131252 mnParser+00000580
[107] 0x000000001b143618                                  bin\win64\mcr.dll+00341528 mcr::runtime::setInterpreterThreadSingletonToCurrent+00020808
[108] 0x000000001b14414d                                  bin\win64\mcr.dll+00344397 mcr::runtime::setInterpreterThreadSingletonToCurrent+00023677
[109] 0x000000001b10b1ba                                  bin\win64\mcr.dll+00111034 mcrOptions::set_use_license_manager+00075498
[110] 0x000000001b126e74                                  bin\win64\mcr.dll+00224884 mcrOptions::set_use_license_manager+00189348
[111] 0x00000000fd02cfee                                  bin\win64\iqm.dll+00643054 iqm::PackagedTaskPlugin::execute+00000894
[112] 0x00000000fd02ce63                                  bin\win64\iqm.dll+00642659 iqm::PackagedTaskPlugin::execute+00000499
[113] 0x00000000fcffcc07                                  bin\win64\iqm.dll+00445447 iqm::Iqm::setupIqmFcnPtrs+00076215
[114] 0x00000000fcffcc59                                  bin\win64\iqm.dll+00445529 iqm::Iqm::setupIqmFcnPtrs+00076297
[115] 0x00000000fcffca16                                  bin\win64\iqm.dll+00444950 iqm::Iqm::setupIqmFcnPtrs+00075718
[116] 0x00000000fcfd9748                                  bin\win64\iqm.dll+00300872 iqm::Iqm::deliver+00005880
[117] 0x00000000fcfd8eef                                  bin\win64\iqm.dll+00298735 iqm::Iqm::deliver+00003743
[118] 0x00000000fcfdac0d                                  bin\win64\iqm.dll+00306189 iqm::Iqm::deliver+00011197
[119] 0x0000000100203775                        bin\win64\libmwservices.dll+02176885 services::system_events::PpeDispatchHook::dispatchOne+00036213
[120] 0x0000000100212a63                        bin\win64\libmwservices.dll+02239075 sysq::addProcessPendingEventsUnitTestHook+00006035
[121] 0x0000000100214310                        bin\win64\libmwservices.dll+02245392 sysq::getCondition+00004208
[122] 0x000000010021596d                        bin\win64\libmwservices.dll+02251117 svWS_ProcessPendingEvents+00000221
[123] 0x000000001b147724                                  bin\win64\mcr.dll+00358180 mcr::runtime::setInterpreterThreadSingletonToCurrent+00037460
[124] 0x000000001b147f16                                  bin\win64\mcr.dll+00360214 mcr::runtime::setInterpreterThreadSingletonToCurrent+00039494
[125] 0x000000001b13cabf                                  bin\win64\mcr.dll+00314047 mcr_process_events+00001007
[126] 0x000000001b04d040                             bin\win64\MVMLocal.dll+00380992 mvm_server::inproc::LocalFactory::terminate+00177312
[127] 0x00000000fa9d9480                                  bin\win64\mvm.dll+01741952 mvm::detail::SessionImpl::initWithOptions+00000592

Specifications

Dev-iL commented 6 years ago

Regarding the first issue, as the error says - more time needs to pass between the creation of the UIFigure and running mlapptools. Here's what you can try:

  1. Set a longer timeout: mlapptools.setTimeout(hUIFig, 10); (try 15, 20 etc. if 10 doesn't work for you).
  2. Add a pause before calling mlapptools (so for example: pause(5); mlapptools.getWebElements(...)).

Regarding the 2nd issue - when exactly does it happen? When you run the code, or after you close a uifigure? Please provide exact steps to reproduce. If you need to upload a .mlapp file, please do so. I have R2018a and R2018b so I can test it locally.

thiblab commented 6 years ago

Thank you for your answer @Dev-iL . To answer your remarks :

Set a longer timeout: mlapptools.setTimeout(hUIFig, 10); (try 15, 20 etc. if 10 doesn't work for you). Add a pause before calling mlapptools (so for example: pause(5); mlapptools.getWebElements(...)).

I tested what you say but the issue n°2 is now showing 100% of the time...

Regarding the 2nd issue - when exactly does it happen? When you run the code, or after you close a uifigure? Please provide exact steps to reproduce. If you need to upload a .mlapp file, please do so. I have R2018a and R2018b so I can test it locally.

It happens just after starting the interface (3 -4 seconds of delay). Actually, the [win, widgetID] = mlapptools.getWebElements(app.TabGroup) function is in the startUpFcn.

I give you my code (I would prefer in private) but you will have many parts missing...

Thanks

Dev-iL commented 6 years ago

@thiblab Please try to create a new App with just the minimum code required to reproduce the issue, then post the code of the App here.

Did you try saving the code of the App in a regular .m file and running it? I suspect that this issue happens because you run the code from within the App Designer.

thiblab commented 6 years ago

The issue 2 seems indeed appear only with App Designer. So in which conditions I have to use mlappTools ? When using the code of App Designer but not using App Designer itself ?

Dev-iL commented 6 years ago

Yes, I would say that this is a sound course of action (at least that's how I always use it, because I used to have various problem running App Designer, so I ended up creating UIFigures completely programmatically)...

You see, the App Designer itself is a uifigure (and hence, a "browser window"), so there must be some issues when we try making MATLAB have two browser windows communicating with each other.

thiblab commented 6 years ago

Sorry, I replied too fast. Below is a simple code that I am running as.m file. And unfortunately, the issue 2 is still showing...

The behavior is actually strange : Sometimes it works, and when it works both [win, widgetID] are returned. When it crashes the widgetID isn't return so it seems that the issue come from this parameter. 


classdef app2 < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure  matlab.ui.Figure
        TabGroup  matlab.ui.container.TabGroup
        Tab       matlab.ui.container.Tab
        Tab2      matlab.ui.container.Tab
    end

    methods (Access = private)

        % Code that executes after component creation
        function startupFcn(app)
            [win, widgetID] = mlapptools.getWebElements(app.TabGroup)
        end
    end

    % App initialization and construction
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)

            % Create UIFigure
            app.UIFigure = uifigure;
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'UI Figure';

            % Create TabGroup
            app.TabGroup = uitabgroup(app.UIFigure);
            app.TabGroup.Position = [100 82 325 280];

            % Create Tab
            app.Tab = uitab(app.TabGroup);
            app.Tab.Title = 'Tab';

            % Create Tab2
            app.Tab2 = uitab(app.TabGroup);
            app.Tab2.Title = 'Tab2';
        end
    end

    methods (Access = public)

        % Construct app
        function app = app2

            % Create and configure components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            % Execute the startup function
            runStartupFcn(app, @startupFcn)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end
Dev-iL commented 6 years ago

I can reproduce your problem.

If your use-case permits it, I suggest you only take the code that creates components (and callbacks if there are any), then apply your customizations at the end.

%% Create UIFigure and add components:
app = struct(); % < This is just to keep the same structure for the rest of the code.
% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 100 640 480];
app.UIFigure.Name = 'UI Figure';

% Create TabGroup
app.TabGroup = uitabgroup(app.UIFigure);
app.TabGroup.Position = [100 82 325 280];

% Create Tab
app.Tab = uitab(app.TabGroup);
app.Tab.Title = 'Tab';

% Create Tab2
app.Tab2 = uitab(app.TabGroup);
app.Tab2.Title = 'Tab2';

%% Customize using mlapptools:
pause(5); % might need to be longer, depending on your computer.
[win, widgetID] = mlapptools.getWebElements(app.TabGroup);
...

In conclusion - until we find a way to better way to avoid these crashes, you should only use mlapptools after your uifigure was fully created (just like in the examples).

thiblab commented 6 years ago

Thanks for your answer, but actually it has fixed the issue. I can put pause(30) or more, sometimes it's still crashing. I don't get why it does this, in both cases the component are already created right ? So what would be the inherent problem ?

Actually, I want to be able to personalize the Tab Group (cf screenshot) (Size of click panel, Selected / Unselected Color, Font, Font Size, Underlying...). Am I able to do this with mlappTools ?

tabs

Dev-iL commented 6 years ago

I didn't try doing anything like that myself, but I expect that it is possible, yes. I would also advise you to use the documented ways to edit components as much as possible, and only when you reach their limit, switch to mlapptools.

thiblab commented 6 years ago

Actually, the documented way doesn't offer any possibility to customize the TabGroup object. This is Why I wanted to try mlapptools.

Today I tried the 'manual' way to retrieve tags and ID and the issue is the same, and appear only with the TabGroup object but works fine with other objects. Here is the code if you want to reproduce it. The URL is found, but the script crashes when retrieving the tag of the associated TabGroup. 


classdef DOMdemo < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure      matlab.ui.Figure           % UI Figure
        LabelTextArea matlab.ui.control.Label    % Text Area
        TextArea      matlab.ui.control.TextArea % This is some text.
        TabGroup  matlab.ui.container.TabGroup
        Tab       matlab.ui.container.Tab
        Tab2      matlab.ui.container.Tab

    end

    methods (Access = private)
        % Code that executes after component creation
        function startupFcn(app)
            % Customizations (aka "MAGIC GOES HERE"):
            warning off Matlab:HandleGraphics:ObsoletedProperty:JavaFrame
            warning off Matlab:structOnObject

            while true
                try

                    win = struct(struct(struct(app.UIFigure).Controller).PlatformHost).CEF;
                    disp(win.URL)
                    data_tag = char(struct(app.TabGroup).Controller.ProxyView.PeerNode.getId)
                    widgetId = win.executeJS(['dojo.getAttr(dojo.query("[data-tag^=''' data_tag '''] > div")[0],"widgetid")']);

                    break

                catch
                    disp('Not ready yet!');
                    pause(0.5); % Give the figure (webpage) some more time to load
                end
             end

        end
    end

    % App initialization and construction
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)
            % Create UIFigure
            app.UIFigure = uifigure;
            app.UIFigure.Position = [100 100 500 500];
            app.UIFigure.Name = 'UI Figure';
            setAutoResize(app, app.UIFigure, true)

            % Create LabelTextArea
            app.LabelTextArea = uilabel(app.UIFigure);
            app.LabelTextArea.HorizontalAlignment = 'right';
            app.LabelTextArea.Position = [16 73 62 15];
            app.LabelTextArea.Text = 'Text Area';

            % Create TextArea
            app.TextArea = uitextarea(app.UIFigure);
            app.TextArea.Position = [116 14 151 60];
            app.TextArea.Value = {'This is some text.'};

             % Create TabGroup
            app.TabGroup = uitabgroup(app.UIFigure);
            app.TabGroup.Position = [100 82 325 280]

            % Create Tab
            app.Tab = uitab(app.TabGroup);
            app.Tab.Title = 'Tab';

            % Create Tab2
            app.Tab2 = uitab(app.TabGroup);
            app.Tab2.Title = 'Tab2';
        end
    end

    methods (Access = public)

        % Construct app
        function app = DOMdemo()
            % Create and configure components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            % Execute the startup function
            runStartupFcn(app, @startupFcn)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)
            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end
Dev-iL commented 6 years ago

If you have to use mlapptools in startupFcn, you can do so using a timer (the timer runs on a different thread, which allows the App to properly finish initializing):

    methods (Access = private)
        % Code that executes after component creation
        function startupFcn(app)
          start(timer('TimerFcn', @(x,y)app.customizeElements(), 'StartDelay', 10));
        end

        function customizeElements(app)
          [hWin, widgetID] = mlapptools.getWebElements(app.TabGroup);
          [childIDs] = mlapptools.getChildNodeIDs(hWin, widgetID);
          mlapptools.setStyle(hWin, 'background', 'transparent', childIDs(2));
          [childIDs] = mlapptools.getChildNodeIDs(hWin, childIDs(2));
          mlapptools.setStyle(hWin, 'background', 'black', childIDs(4));
        end
    end

Note that it will only crash if the timer delay is too short.