[Webkit-unassigned] [Bug 69507] New: [chromium] [linux] Pass language to fontconfig

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=69507

           Summary: [chromium] [linux] Pass language to fontconfig
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Minor
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: falken at chromium.org
                CC: jshin at chromium.org, bashi at chromium.org,
                    kochi at chromium.org


On Linux, a per-script font setting may be a generic font like "serif" to allow fontconfig to choose a font depending on the script.  So, we need to pass the language information down to fontconfig.  However, currently in FontCache::createFontPlatformData we use Skia SkTypeface::CreateFromName to choose the font, which only accepts the font name and style (normal, bold, italic) which it then passes to fontconfig.

I think we have two choices for a solution:
1. Modify Skia to accept language 
2. Use fontconfig directly to get a font name, then pass that to Skia.

WebKit bug 55453 is related, but I'm not sure exactly how.  I guess it is for font-fallback when the attempted fonts don't cover the character to render, so it occurs at a later stage when necessary.

It also seems there are related bugs on the Chromium tracker like http://crbug.com/31232

Also, the following comment on a Skia issue seems to mention the possibility of adding language support:
http://code.google.com/p/skia/issues/detail?id=266#c1

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