Bug 118021 – Remove many static_casts to Element types from AccessibilityNodeObject

• Component: Accessibility
• Status: RESOLVED FIXED

[Ryosuke Niwa]

Merge https://chromium.googlesource.com/chromium/blink/+/ecd837f94996a20fdb8798e24f26cf6edea2a423

Some of these casts were to overly specific types, like casting to HTMLFrameElementBase*
just to call getAttribute. In other cases we can cast to a more generic type like
HTMLTextFormControlElement to avoid the extra cases the code originally had.

[Ryosuke Niwa]

Created attachment 205444 [details]
Cleanup

[chris fleizach]

Comment on attachment 205444 [details]
Cleanup

View in context: https://bugs.webkit.org/attachment.cgi?id=205444&action=review

> Source/WebCore/accessibility/AccessibilityNodeObject.cpp:1647
> +        return toHTMLTextFormControlElement(node)->value();

Isn't this a bad cast for input type=checkbox for instance?

[Ryosuke Niwa]

(In reply to comment #2)
> (From update of attachment 205444 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=205444&action=review
> 
> > Source/WebCore/accessibility/AccessibilityNodeObject.cpp:1647
> > +        return toHTMLTextFormControlElement(node)->value();
> 
> Isn't this a bad cast for input type=checkbox for instance?

No. Both HTMLInputElement and HTMLTextAreaElement inherit from HTMLTextFormControlElement.

[WebKit Commit Bot]

Comment on attachment 205444 [details]
Cleanup

Clearing flags on attachment: 205444

Committed r151990: <http://trac.webkit.org/changeset/151990>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.