Bug 120820 – [Windows] Implement text offset methods of IAccessibleText interface

• Component: Accessibility
• Status: RESOLVED FIXED

[Roger Fong]

Left these out previously.
They've now been implemented and function properly.

[Roger Fong]

<rdar://problem/14925242>

[Roger Fong]

Created attachment 210692 [details]
patch

[Build Bot]

Comment on attachment 210692 [details]
patch

Attachment 210692 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.appspot.com/results/1707194

New failing tests:
media/video-object-fit.html

[Build Bot]

Created attachment 210696 [details]
Archive of layout-test-results from webkit-ews-15 for mac-mountainlion-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: webkit-ews-15  Port: mac-mountainlion-wk2  Platform: Mac OS X 10.8.4

[Roger Fong]

(In reply to comment #4)
> Created an attachment (id=210696) [details]
> Archive of layout-test-results from webkit-ews-15 for mac-mountainlion-wk2
> 
> The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
> Bot: webkit-ews-15  Port: mac-mountainlion-wk2  Platform: Mac OS X 10.8.4

This patch does not affect mac in the slightest. Flaky test.

[Brent Fulgham]

Comment on attachment 210692 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=210692&action=review

A couple of minor typos. Please fix when landing.

> Source/WebKit/win/AccessibleTextImpl.cpp:-206
> -    return E_NOTIMPL;

Don't we need to make sure startOffset and endOffset are non-null, and return E_POINTER if they are?

> Source/WebKit/win/AccessibleTextImpl.cpp:209
> +    if (offset < 0 && offset > m_object->text().length())

Shouldn't this be an ||? I don't know if too man things that are negative and also larger than the text length! :)

> Source/WebKit/win/AccessibleTextImpl.cpp:215
> +    int previousPos = std::max(0, (int)(offset-1));

Please use a C++ cast.

> Source/WebKit/win/AccessibleTextImpl.cpp:256
> +    *text = SysAllocStringLen(substringText.characters(), substringText.length());

On - we should check that text is also a valid pointer passed to the function?

> Source/WebKit/win/AccessibleTextImpl.cpp:271
> +    if (offset < 0 && offset > textLength)

These two cases are exclusive; use ||

> Source/WebKit/win/AccessibleTextImpl.cpp:311
> +    *endOffset = textRange.end.deepEquivalent().offsetInContainerNode();

Check locations and return E_POINTER if they are not valid.

> Source/WebKit/win/AccessibleTextImpl.cpp:317
> +    *text = SysAllocStringLen(substringText.characters(), substringText.length());

Ditto for text.

> Source/WebKit/win/AccessibleTextImpl.cpp:333
> +    if (offset < 0 && offset > textLength)

|| please.

[Roger Fong]

Committed with changes above:
http://trac.webkit.org/changeset/155212