130840 2014-03-27 08:37:49 -0700 Add Support for Glyph-level mirroring 2016-07-13 22:06:43 -0700 1 1 1 Unclassified WebKit Text 528+ (Nightly build) All All NEW P2 Normal --- 123018 1 fred.wang webkit-unassigned cfleizach mmaxfield mrobinson oldest_to_newest 994925 0 227948 fred.wang 2014-03-27 08:37:49 -0700 Created attachment 227948 testcase Currently, Font::glyphDataForCharacter accepts a mirror boolean to apply Character-level mirroring. However it does not allow to apply Glyph-level mirroring. See http://www.microsoft.com/typography/OTSPEC/TTOCHAP1.htm#ltrrtl This is needed for MathML operators such as integrals or sums, that don't have character-level mirroring defined in Unicode. In Blink & Gecko with the XITS fonts installed, the attached testcase shows mirroring of the bracket (character-level) and sum (glyph-level). The latter relies on the 'rtlm' feature of the XITS. Note that for MathML purpose, all what is needed is a way for Font::glyphDataForCharacter to use the rtlm substitution table, not to implement the font-feature-settings CSS property. 227948 2014-03-27 08:37:49 -0700 2014-03-27 08:37:49 -0700 testcase mirroring.html text/html 278 fred.wang PCFkb2N0eXBlIGh0bWw+CjxodG1sPgogIDxoZWFkPgogICAgPHRpdGxlPm1pcnJvcmluZzwvdGl0 bGU+CiAgICA8bWV0YSBjaGFyc2V0PSJ1dGYtOCIvPgogIDwvaGVhZD4KICA8Ym9keT4KCiAgICA8 cCBzdHlsZT0iZm9udC1mYW1pbHk6IFhJVFMgTWF0aDsgZm9udC1zaXplOiAzZW07IC1tb3otZm9u dC1mZWF0dXJlLXNldHRpbmdzOiAncnRsbSc7IC13ZWJraXQtZm9udC1mZWF0dXJlLXNldHRpbmdz OiAncnRsbSciIGRpcj0icnRsIj5bJlN1bTs8L3A+CgogIDwvYm9keT4KPC9odG1sPgo=