PDFView Crash After Find Changing current selection and calling -scrollSelectionToVisible: on macOS Tahoe

Question

Created 3w

Replies 3

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Participants 1

Getting this crash after I do this in PDFKit a lot:

PDFSelection *nextSelect = [self.pdfView.document findString:currentSearchString fromSelection:currentSelction withOptions:NSCaseInsensitiveSearch]; if (nextSelect != nil) { self.pdfView.currentSelection = nextSelect; [self.pdfView scrollSelectionToVisible:nil]; }

Which often leads to:

0   CoreFoundation                      0x000000019ced4770 __exceptionPreprocess + 176
1   libobjc.A.dylib                     0x000000019c9b2418 objc_exception_throw + 88
2   CoreFoundation                      0x000000019cfffe10 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 724
3   CoreFoundation                      0x000000019cfa1ae4 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 52
4   PDFKit                              0x00000001cb56e0fc -[PDFView _axPostPageChangeNotification:] + 348
5   Foundation                          0x000000019e6a25e4 __NSFireDelayedPerform + 372
6   CoreFoundation                      0x000000019ce92290 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
7   CoreFoundation                      0x000000019ce91f50 __CFRunLoopDoTimer +

Boost

Answer 1

Macho Man Randy Savage OP

3w

Swizzle -_axPostPageChangeNotification: and don't call the original implementation avoids the crash...

you're welcome

0

Answer 2

Macho Man Randy Savage OP

3w

Interestingly Preview.app seems to avoid the crash but they left the bug in for everyone else. cool.

0

Answer 3

Macho Man Randy Savage OP

3w

My apologies this actually isn’t actually causing a crash…the exception is being thrown but apparently caught....

I hit my exception breakpoint in the debugger last night and had assumed a crash was imminent (because typically you're not supposed to recover from this type of error)

0