[Webkit-unassigned] [Bug 75171] NULL ptr in WebCore::TextIterator::rangeFromLocationAndLength

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=75171





--- Comment #4 from Ryosuke Niwa <rniwa at webkit.org>  2012-01-04 15:56:29 PST ---
(From update of attachment 121168)
View in context: https://bugs.webkit.org/attachment.cgi?id=121168&action=review

>>> Source/WebCore/editing/ApplyBlockElementCommand.cpp:84
>>> +    if (startOfSelection.isNull() || endOfSelection.isNull())
>> 
>> You should just call isNonOrphanedCaretOrRange on selection.
> 
> That's called at the start of the function and it returns true. If i understand things correctly, it's not orphaned, it's just that there's a single element but it's not selectable due to the -webkit-user-select css declaration.
> 
> A similar bug is https://bugs.webkit.org/show_bug.cgi?id=26214

selectionForParagraphIteration is probably returning a null selection. isNonOrphanedCaretOrRange checks nullness as well as orphanedness.

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