[Webkit-unassigned] [Bug 174856] AX: Incorrect range from index and length in contenteditable with <p> tags

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174856

--- Comment #3 from Nan Wang <n_wang at apple.com> ---
Comment on attachment 316437
  --> https://bugs.webkit.org/attachment.cgi?id=316437
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=316437&action=review

>> Source/WebCore/accessibility/mac/WebAccessibilityObjectWrapperMac.mm:3956
>> +            return m_object->doAXStringForRange(plainTextRange);
> 
> is this not possible to fix in the characterOffsetForIndex? do you know the reason?

I think the problem here is that for text controls, the AXValue comes from the AccessibilityNodeObject::text() (we call downcast<HTMLTextFormControlElement>(*node).value() or downcast<Element>(node)->innerText()).
This value can be different from what textIterator gives us. In this case it will contain two newline characters instead of one visually.
So when we try to get the range of text we should match that with the entire element value.

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