[Webkit-unassigned] [Bug 58429] [GTK] Missing nullchecks in GTK's a11y wrapper

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=58429


Martin Robinson <mrobinson at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #89363|review?                     |review+
               Flag|                            |




--- Comment #2 from Martin Robinson <mrobinson at webkit.org>  2011-04-13 08:22:48 PST ---
(From update of attachment 89363)
View in context: https://bugs.webkit.org/attachment.cgi?id=89363&action=review

Looks good, but consider my comments before landing.

> Source/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp:1560
> +    Document* document = coreObject->document();
>      switch(coords) {
>      case ATK_XY_SCREEN:
> -        extents = coreObject->document()->view()->contentsToScreen(extents);
> +        if (document)
> +            extents = document->view()->contentsToScreen(extents);
>          break;

If you only use "document" in this if block you should probably do:

if (Document* document = coreObject->document())
    extents = document->view()->contentsToScreen(extents);

and remove the first declaration.

> Source/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp:1836
> +    Document* document = coreObject->document();
> +    if (!document)
> +        return;
> +
> +    if (!document->frame())
>          return;

Can't this just be:

if (!document || !document->frame())
    return;

> Source/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp:1867
> +    Document* document = coreObject->document();
> +    if (!document)
>          return;
> +
> +    if (!document->frame())
> +        return;
> +

Ditto.

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