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  1. Qt
  2. QTBUG-38018

iOS: Auto complete crashes when application font is set

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.3.0
    • 5.3.0 Beta1
    • QPA
    • iOS 7
    • iOS/tvOS/watchOS
    • 839c54e070727540570b5994908d461bb7bb4dfd

    Description

      When auto complete should be displayed application crashes if application font is set. The crash happens only with some fonts.
      For example: "Arial Bold" crashes and "Arial" doesn't.
      According http://support.apple.com/kb/HT5878 both of them should be installed on iOS 7.

      Use the attached example to reproduce.

      Seems like regression in Qt 5.3.0 since the same code runs fine on Qt 5.2.

      Backtrace:

      2014-04-01 14:19:55.362 LineEdit[36355:a0b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]'
*** First throw call stack:
(
	0   CoreFoundation                      0x02fe45e4 __exceptionPreprocess + 180
	1   libobjc.A.dylib                     0x0427b8b6 objc_exception_throw + 44
	2   CoreFoundation                      0x02faa4c6 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 390
	3   CoreFoundation                      0x02fb92e6 +[NSDictionary dictionaryWithObject:forKey:] + 86
	4   LineEdit                            0x0000c4d5 -[QUIView(TextInput) textStylingAtPosition:inDirection:] + 437
	5   UIKit                               0x01e5586c -[UIResponder(UITextInput_Internal) _fontForCaretSelection] + 192
	6   UIKit                               0x01d2d451 textFont + 73
	7   UIKit                               0x01c323ea -[UIAutocorrectInlinePrompt setCandidateObject:candidateSet:type:typedText:inRect:maxX:showHiddenCandidatesOnly:] + 1291
	8   UIKit                               0x01c31e51 -[UIAutocorrectInlinePrompt setCorrection:typedText:inRect:maxX:] + 104
	9   UIKit                               0x01c24698 -[UIKeyboardImpl updateAutocorrectPrompt:] + 1327
	10  UIKit                               0x0f37f7f9 -[UIKeyboardImplAccessibility(SafeCategory) updateAutocorrectPrompt:] + 58
	11  UIKit                               0x01c23dd5 -[UIKeyboardImpl updateAutocorrectPromptAction] + 143
	12  libobjc.A.dylib                     0x0428d81f -[NSObject performSelector:withObject:] + 70
	13  UIKit                               0x01bcf148 -[UIDelayedAction timerFired:] + 83
	14  Foundation                          0x0296c927 __NSFireTimer + 97
	15  CoreFoundation                      0x02fa2bd6 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 22
	16  CoreFoundation                      0x02fa25bd __CFRunLoopDoTimer + 1181
	17  CoreFoundation                      0x02f8a628 __CFRunLoopRun + 1816
	18  CoreFoundation                      0x02f89ac3 CFRunLoopRunSpecific + 467
	19  CoreFoundation                      0x02f898db CFRunLoopRunInMode + 123
	20  GraphicsServices                    0x042599e2 GSEventRunModal + 192
	21  GraphicsServices                    0x04259809 GSEventRun + 104
	22  UIKit                               0x01a3dd3b UIApplicationMain + 1225
	23  LineEdit                            0x00008255 main + 693
	24  LineEdit                            0x00004db5 start + 53
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

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          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-37065 Issues to be fixed before 5.3.0 RC1 release

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              richard Richard Moe Gustavsen
              kileppal Kimmo Leppälä
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              Dates

                Created:
                Updated:
                Resolved:

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