[Webkit-unassigned] [Bug 206093] AX: Unable to use AccessibilityObject::replaceTextInRange to insert text at first time when the text fields are empty

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206093

--- Comment #11 from Canhai Chen <canhai_chen at apple.com> ---
Comment on attachment 387877
  --> https://bugs.webkit.org/attachment.cgi?id=387877
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=387877&action=review

>>> Source/WebCore/accessibility/AccessibilityObject.cpp:1193
>>> +        return nullptr;
>> 
>> Can we check that the backing element for this object is HTMLTextFormControlElement
>> to minimize the risk of this code change causing other kinds of issues?
> 
> Also, we should probably add a comment about why we have to do this.
> Maybe something like: // Avoid setting selection to outside input element in setSelectionRange. See webkit.org/b/206093.

Will add the comment!

About the element check, this bug is not only reproducible on HTMLTextFormControlElement(<input> and <textarea>) but also on and content-editable <div> (See the added test for an example).

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