Align Range.createContextualFragment() input validation with the specification

[Chris Dumez]

Align Range.createContextualFragment() input validation with the specification:
- https://w3c.github.io/DOM-Parsing/#dom-element-insertadjacenthtml (Step 2)

In particular, we were throwing a NOT_SUPPORTED_ERR when element had localname "html" but was not in the HTML namespace. We should not throw in this case.

Firefox complies with the specification here.

[Chris Dumez]

Created attachment 285497 [details]
Patch

[Build Bot]

Comment on attachment 285497 [details]
Patch

Attachment 285497 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/1825540

New failing tests:
imported/w3c/web-platform-tests/domparsing/createContextualFragment.html

[Build Bot]

Created attachment 285500 [details]
Archive of layout-test-results from ews117 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews117  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Chris Dumez]

Created attachment 285510 [details]
Patch

[Darin Adler]

Comment on attachment 285510 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=285510&action=review

> Source/WebCore/editing/markup.cpp:956
> +    if (is<HTMLElement>(element) && downcast<HTMLElement>(element).ieForbidsInsertHTML()) {

Could move the function ieForbidsInsertHTML to Element from HTMLElement to get rid of this casting.

Could also give it a different name since there is probably some nomenclature in the standard now rather than referring to IE.

[Chris Dumez]

Comment on attachment 285510 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=285510&action=review

>> Source/WebCore/editing/markup.cpp:956
>> +    if (is<HTMLElement>(element) && downcast<HTMLElement>(element).ieForbidsInsertHTML()) {
> 
> Could move the function ieForbidsInsertHTML to Element from HTMLElement to get rid of this casting.
> 
> Could also give it a different name since there is probably some nomenclature in the standard now rather than referring to IE.

Sounds good. I'll move it to Element. However, I have trouble finding the equivalent in the specification. I suspect it may not be standard behavior.

The spec is:
- https://w3c.github.io/DOM-Parsing/#idl-def-range-createcontextualfragment(domstring)
which points to:
- https://html.spec.whatwg.org/#html-fragment-parsing-algorithm

[Chris Dumez]

Created attachment 285515 [details]
Patch

[WebKit Commit Bot]

Comment on attachment 285515 [details]
Patch

Clearing flags on attachment: 285515

Committed r204235: <http://trac.webkit.org/changeset/204235>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.