Bug 145892 – Add an appearance keyword for wireless playback / airplay icon

• Component: New Bugs
• Status: RESOLVED WONTFIX

[Dean Jackson]

Add an appearance keyword for wireless playback / airplay icon

[Radar WebKit Bug Importer]

<rdar://problem/21344872>

[Dean Jackson]

Created attachment 254751 [details]
Patch

[Simon Fraser (smfr)]

Comment on attachment 254751 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=254751&action=review

> Source/WebCore/css/CSSParser.cpp:12837
> +        if ((hasPrefix(buffer, length, "-apple-") && !hasPrefix(buffer, length, "-apple-system") && memcmp(buffer, "-apple-airplay", length)) || hasPrefix(buffer, length, "-khtml-")) {

This is getting unwieldy. It feels like we should use Strings, and have some data-driven way to specify that a -apple thing should not be mapped to a -webkit thing.

[Dean Jackson]

Comment on attachment 254751 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=254751&action=review

>> Source/WebCore/css/CSSParser.cpp:12837
>> +        if ((hasPrefix(buffer, length, "-apple-") && !hasPrefix(buffer, length, "-apple-system") && memcmp(buffer, "-apple-airplay", length)) || hasPrefix(buffer, length, "-khtml-")) {
> 
> This is getting unwieldy. It feels like we should use Strings, and have some data-driven way to specify that a -apple thing should not be mapped to a -webkit thing.

Yes, the comment above and the bug I filed describes this :)

      // FIXME: The better way to do this would be to mark up CSSValueKeywords.in with
      // commands that indicate if the keyword should support a translation.
      // https://bugs.webkit.org/show_bug.cgi?id=145883

[Dean Jackson]

Committed r185470: <http://trac.webkit.org/changeset/185470>

[Alexey Proskuryakov]

ASan has detected buffer overruns on two tests after this patch, rolling out.

platform/mac/fast/text/trailing-word.html
platform/mac/fast/text/trailing-word-parse.html

================================================================
==63968==ERROR: AddressSanitizer: global-buffer-overflow on address 0x00011cfad02f at pc 0x00010e14e0ad bp 0x7fff51af02d0 sp 0x7fff51aefa80
READ of size 25 at 0x00011cfad02f thread T0
==63968==WARNING: failed to fork external symbolizer (errno: 1)
    #0 0x10e14e0ac in wrap_memcmp (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/7.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib+0x380ac)
    #1 0x11b02a349 in WebCore::CSSValueID WebCore::cssValueKeywordID<unsigned char>(unsigned char const*, unsigned int) 
    #2 0x11afd9648 in makeIdentValue(WebCore::CSSParserString) 
    #3 0x11a7bb3cd in cssyyparse(WebCore::CSSParser*) 
    #4 0x11aa2a8da in WebCore::CSSParser::parseRule(WebCore::StyleSheetContents*, WTF::String const&) 
    #5 0x11aa2a42c in WebCore::CSSStyleSheet::insertRule(WTF::String const&, unsigned int, int&) 
...

[WebKit Commit Bot]

Re-opened since this is blocked by bug 145902

[Dean Jackson]

We've decided to do this a different way.