AX: Move handling of AXContents from platform wrapper to AX core

[Tyler Wilcock]

Moving this means we'll be able to use this logic in core.

[Radar WebKit Bug Importer]

<rdar://problem/83884806>

[Tyler Wilcock]

Created attachment 440266 [details]
Patch

[Tyler Wilcock]

Comment on attachment 440266 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=440266&action=review

> Source/WebCore/accessibility/mac/WebAccessibilityObjectWrapperMac.mm:-2384
> -        // The contents of a tab list are all the children except the tabs.

The comment says this, but then the code that follows does the exact opposite thing. I elected to copy the current behavior when I moved this logic to AccessibilityObject.cpp.

[EWS]

Committed r283601 (242553@main): <https://commits.webkit.org/242553@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 440266 [details].

[Andres Gonzalez]

(In reply to Tyler Wilcock from comment #2)
> Created attachment 440266 [details]
> Patch

--- a/Source/WebCore/accessibility/AccessibilityObjectInterface.h
+++ a/Source/WebCore/accessibility/AccessibilityObjectInterface.h

+    virtual void contents(AccessibilityChildrenVector&) = 0;

Should be 

virtual AccessibilityChildrenVector contents() = 0;

No need to pass an out parameter. Out parameters are bad and make client code less clear unnecessarily.

Also, can we make this method const:

virtual AccessibilityChildrenVector contents() const = 0;

or some of the function calls in the implementation cannot be const.

[Andres Gonzalez]

(In reply to Tyler Wilcock from comment #2)
> Created attachment 440266 [details]
> Patch

--- a/Source/WebCore/accessibility/AccessibilityObject.cpp
+++ a/Source/WebCore/accessibility/AccessibilityObject.cpp

+        for (RefPtr<AccessibilityObject> child = firstChild(); child; child = child->nextSibling()) {

Change RefPtr<AccessibilityObject> to auto*

[Tyler Wilcock]

Handling review comments in: https://bugs.webkit.org/show_bug.cgi?id=231289

[Tyler Wilcock]

> Also, can we make this method const:

Unfortunately not, because tabChildren is not const.