[Webkit-unassigned] [Bug 205321] New: [cairo] text-align:justify layouts texts wrongly for complex texts

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205321

            Bug ID: 205321
           Summary: [cairo] text-align:justify layouts texts wrongly for
                    complex texts
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

In Source/WebCore/platform/graphics/cairo/FontCairoHarfbuzzNG.cpp, canExpandAroundIdeographsInComplexText return false.

> bool FontCascade::canExpandAroundIdeographsInComplexText()
> {
>     return false;
> }

However, ComplexTextController doesn't take it into account.

fast/text/justify-ideograph-complex.html is a test case.

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