| Summary: | [CSS3 Values] ch unit with text-orientation and vertical writing modes | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Gérard Talbot (no longer involved) <browserbugs2> |
| Component: | CSS | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | Normal | CC: | ahmad.saleem792, ntim, simon.fraser, webkit-bug-importer, zalan |
| Priority: | P2 | Keywords: | InRadar, W3CTest, WPTImpact |
| Version: | Safari Technology Preview | ||
| Hardware: | Unspecified | ||
| OS: | macOS 10.13 | ||
It seems these are now on WPT, adding WPTImpact tag: WPT Tests - https://wpt.fyi/results/css/css-values?label=master&label=experimental&aligned&view=subtest&q=css-values%2Fch- *** This bug has been marked as a duplicate of bug 266937 *** |
{ ch unit Equal to the used advance measure of the "0" (ZERO, U+0030) glyph found in the font used to render it. (The advance measure of a glyph is its advance width or height, whichever is in the inline axis of the element.) Note: The advance measure of a glyph depends on writing-mode and text-orientation (...) } CSS3 Values and Units, section 5.1.1 Font-relative lengths: the em, ex, ch, rem units https://www.w3.org/TR/css-values-3/#ch Tests ----- In 'vertical-rl' writing mode with 'text-orientation: upright', the ch unit is equal to the used vertical advance measure of the 0 (ZERO, U+0030) glyph http://w3c-test.org/css/css-values/ch-unit-002.html In 'vertical-rl' writing mode with 'text-orientation: mixed', the ch unit is equal to the used horizontal advance measure of the 0 (ZERO, U+0030) glyph http://w3c-test.org/css/css-values/ch-unit-003.html In 'vertical-rl' writing mode with 'text-orientation: sideways', the ch unit is equal to the used horizontal advance measure of the 0 (ZERO, U+0030) glyph http://w3c-test.org/css/css-values/ch-unit-004.html In 'vertical-rl' writing mode with 'text-orientation: mixed', the ch unit is the advance width measure of the 0 (ZERO, U+0030) glyph http://w3c-test.org/css/css-values/ch-unit-010.html In 'vertical-rl' writing mode with 'text-orientation: upright', the ch unit is the advance height measure of the 0 (ZERO, U+0030) glyph http://w3c-test.org/css/css-values/ch-unit-011.html In 'vertical-rl' writing mode with 'text-orientation: sideways', the ch unit is the advance width measure of the 0 (ZERO, U+0030) glyph http://w3c-test.org/css/css-values/ch-unit-012.html These 6 tests fail in latest stable Safari 12 and in latest Safari Technology Preview. Firefox 68 and Epiphany Technological Preview 3.31.90-8061c1929 (WebKitGTK 2.24.0) pass these 6 tests. I searched for duplicates and did not find any. This is not a duplicate of bug 85755. Unfortunately, I do not have and do not use and do not have access to Mac OS X or to latest stable Safari 12 or to latest Safari Technological Preview; I was informed by Florian Rivoal about these test results.