Bug 157402 – 4 and 8 digit color attributes should use the crazypants algorithm, not the CSS one.

• Component: New Bugs
• Status: RESOLVED FIXED

[Dean Jackson]

4 and 8 digit color attributes should use the crazypants algorithm, not the CSS one.

[Dean Jackson]

Created attachment 278213 [details]
Patch

[Radar WebKit Bug Importer]

<rdar://problem/26131142>

[Simon Fraser (smfr)]

Comment on attachment 278213 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=278213&action=review

> Source/WebCore/html/HTMLElement.cpp:1150
> +    if ((colorString.length() == 4 || colorString.length() == 7) && colorString[0] == '#')
> +        color = Color(colorString);
> +    if (!color.isValid())
> +        color.setNamedColor(colorString);

Should there be an 'else' here since a named color will never start with a '#' ?

[Dean Jackson]

Comment on attachment 278213 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=278213&action=review

>> Source/WebCore/html/HTMLElement.cpp:1150
>> +        color.setNamedColor(colorString);
> 
> Should there be an 'else' here since a named color will never start with a '#' ?

No. If it is a named color, it didn't pass the conditional above, which means it is still its default value (invalid).

However, if it *is* something like "#abc" and it fails Color(colorString) then we want the next condition to execute. This is because "#fzz" is actually an ok value in HTML color attributes - it becomes rgb(15, 0, 0)!!! Yes, the whole thing is crazy. I don't even understand how this behaviour happened in the first place.

[Dean Jackson]

Committed r200501: <http://trac.webkit.org/changeset/200501>