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Fix CJK fonts again and misc. font issues (#14575) 

* Push system-ui further down the stack, fix #12966

* Fix Firefox showing U+300x in emoji font and more

* Revert emoji font and fix long-standing Safari bug

* Exclude Safari emoji fix above 1.25x zoom

* Minor correctness/typo fix, affects only legacy platforms

* Emoji consistency for monospace (e.g. EasyMDE)

* Override paradigm; macOS/iOS-specific metric fix

* Move whitespace fix to font-face

* Handle metric calculation errors with Firefox

* One last workaround for aliased fonts in Linux
This commit is contained in:
Mike L 2021-03-19 00:43:43 +01:00 committed by GitHub
parent c0c052bdbb
commit 0e5c6c4498
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 187 additions and 40 deletions
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2
templates/base/head.tmpl
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@ -1,5 +1,5 @@
<!DOCTYPE html> <!DOCTYPE html>
<html lang="{{.Language}}" class="theme-{{.SignedUser.Theme}}"> <html lang="{{.Lang}}" class="theme-{{.SignedUser.Theme}}">
<head data-suburl="{{AppSubUrl}}"> <head data-suburl="{{AppSubUrl}}">
<meta charset="utf-8"> <meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="viewport" content="width=device-width, initial-scale=1">

15
web_src/js/index.js
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@ -26,7 +26,7 @@ import {initNotificationsTable, initNotificationCount} from './features/notifica
import {initStopwatch} from './features/stopwatch.js'; import {initStopwatch} from './features/stopwatch.js';
import {createCodeEditor, createMonaco} from './features/codeeditor.js'; import {createCodeEditor, createMonaco} from './features/codeeditor.js';
import {svg, svgs} from './svg.js'; import {svg, svgs} from './svg.js';
import {stripTags} from './utils.js'; import {stripTags, mqBinarySearch} from './utils.js';
const {AppSubUrl, StaticUrlPrefix, csrf} = window.config; const {AppSubUrl, StaticUrlPrefix, csrf} = window.config;
@ -2519,6 +2519,19 @@ $(document).ready(async () => {
.attr('title', ''); .attr('title', '');
}); });
// Undo Safari emoji glitch fix at high enough zoom levels
if (navigator.userAgent.match('Safari')) {
$(window).resize(() => {
const px = mqBinarySearch('width', 0, 4096, 1, 'px');
const em = mqBinarySearch('width', 0, 1024, 0.01, 'em');
if (em * 16 * 1.25 - px <= -1) {
$('body').addClass('safari-above125');
} else {
$('body').removeClass('safari-above125');
}
});
}
// Semantic UI modules. // Semantic UI modules.
$('.dropdown:not(.custom)').dropdown({ $('.dropdown:not(.custom)').dropdown({
fullTextSearch: 'exact' fullTextSearch: 'exact'

13
web_src/js/utils.js
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@ -28,3 +28,16 @@ export function uniq(arr) {
export function stripTags(text) { export function stripTags(text) {
return text.replace(/<[^>]*>?/gm, ''); return text.replace(/<[^>]*>?/gm, '');
} }
// searches the inclusive range [minValue, maxValue].
// credits: https://matthiasott.com/notes/write-your-media-queries-in-pixels-not-ems
export function mqBinarySearch(feature, minValue, maxValue, step, unit) {
if (maxValue - minValue < step) {
return minValue;
}
const mid = Math.ceil((minValue + maxValue) / 2 / step) * step;
if (matchMedia(`screen and (min-${feature}:${mid}${unit})`).matches) {
return mqBinarySearch(feature, mid, maxValue, step, unit); // feature is >= mid
}
return mqBinarySearch(feature, minValue, mid - step, step, unit); // feature is < mid
}

66
web_src/less/_base.less
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@ -1,10 +1,9 @@
:root { :root {
/* documented customizable variables */ /* documented customizable variables */
--fonts-proportional: system-ui, -apple-system, "BlinkMacSystemFont", "Segoe UI", "Roboto", "Helvetica Neue", "Arial", "Noto Sans", "Liberation Sans", sans-serif; --fonts-proportional: -apple-system, "Segoe UI", system-ui, "Roboto", "Helvetica Neue", "Arial";
--fonts-monospace: "SFMono-Regular", "Menlo", "Monaco", "Consolas", "Liberation Mono", "Courier New", monospace; --fonts-monospace: "SFMono-Regular", "Menlo", "Monaco", "Consolas", "Liberation Mono", "Courier New", monospace, var(--fonts-emoji);
--fonts-emoji: "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji", "Twemoji Mozilla"; --fonts-emoji: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Twemoji Mozilla";
/* other variables */ /* other variables */
--fonts-regular: var(--fonts-proportional), var(--fonts-emoji);
--border-radius: .28571429rem; --border-radius: .28571429rem;
--opacity-disabled: .55; --opacity-disabled: .55;
--color-primary: #4183c4; --color-primary: #4183c4;
@ -115,36 +114,8 @@
--checkbox-mask-indeterminate: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M2 7.75A.75.75 0 012.75 7h10a.75.75 0 010 1.5h-10A.75.75 0 012 7.75z"></path></svg>'); --checkbox-mask-indeterminate: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M2 7.75A.75.75 0 012.75 7h10a.75.75 0 010 1.5h-10A.75.75 0 012 7.75z"></path></svg>');
} }
:root:lang(ja) { :root * {
--fonts-proportional: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Source Han Sans JP", "Noto Sans CJK JP", "Droid Sans Japanese", "Meiryo", "MS PGothic"; --fonts-regular: var(--fonts-override, var(--fonts-proportional)), "Noto Sans", "Liberation Sans", var(--fonts-emoji), sans-serif;
}
:root:lang(zh-CN) {
--fonts-proportional: "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", "Heiti SC", "SimHei";
}
:root:lang(zh-TW) {
--fonts-proportional: "PingFang TC", "Hiragino Sans TC", "Source Han Sans TW", "Source Han Sans TC", "Noto Sans CJK TC", "Microsoft JhengHei", "Heiti TC", "PMingLiU";
}
:root:lang(zh-HK) {
--fonts-proportional: "PingFang HK", "Hiragino Sans TC", "Source Han Sans HK", "Source Han Sans TC", "Noto Sans CJK TC", "Microsoft JhengHei", "Heiti TC", "PMingLiU_HKSCS", "PMingLiU";
}
:root:lang(ko) {
--fonts-proportional: "Apple SD Gothic Neo", "NanumBarunGothic", "Malgun Gothic", "Gulim", "Dotum", "Nanum Gothic", "Source Han Sans KR", "Noto Sans CJK KR";
}
@font-face {
font-family: "Yu Gothic";
src: local("Yu Gothic Medium");
font-weight: 400;
}
@font-face {
font-family: "Yu Gothic";
src: local("Yu Gothic Bold");
font-weight: 500;
} }
textarea { textarea {
@ -1151,10 +1122,18 @@ footer {
} }
} }
.ui.language .menu { .ui.language {
max-height: 500px; .menu {
overflow-y: auto; max-height: 500px;
margin-bottom: 7px; overflow-y: auto;
margin-bottom: 7px;
}
.svg {
margin-right: .15em;
vertical-align: top;
margin-top: calc(2em - 16px);
}
} }
.ui { .ui {
@ -1885,6 +1864,17 @@ table th[data-sortt-desc] {
font-style: normal !important; font-style: normal !important;
font-weight: normal !important; font-weight: normal !important;
vertical-align: -.075em; vertical-align: -.075em;
@supports (-webkit-hyphens:none) {
body:not(.safari-above125) & {
font-size: inherit;
vertical-align: inherit;
img {
font-size: 1.25em;
vertical-align: -.225em !important;
}
}
}
} }
.emoji img, .emoji img,

130
web_src/less/_font_i18n.less Normal file
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@ -0,0 +1,130 @@
/* font i18n */
:root {
/* customizable localized variables */
:lang(ja) {
--fonts-override: var(--fonts-default-override-ja);
}
:lang(zh-CN) {
--fonts-override: var(--fonts-default-override-zh-cn);
}
:lang(zh-TW) {
--fonts-override: var(--fonts-default-override-zh-tw);
}
:lang(zh-HK) {
--fonts-override: var(--fonts-default-override-zh-hk);
}
:lang(ko) {
--fonts-override: var(--fonts-default-override-ko);
}
}
[lang] {
font-family: var(--fonts-regular);
}
each(@fonts, {
@weights: .gen-weights-all(@value);
@locale: replace(@key, "@", "-");
.font-face-cjk(~"system-ui@{locale}", @weights[@light], 300);
.font-face-cjk(~"system-ui@{locale}", @weights[@regular], 400);
.font-face-cjk(~"system-ui@{locale}", @weights[@medium], 500);
.font-face-cjk(~"system-ui@{locale}", @weights[@bold], 700);
/* Safari on macOS/iOS */
@font-face {
font-family: ~"system-ui@{locale}";
src: local("HelveticaNeue");
unicode-range: U+A0;
}
/* Other browsers on macOS/iOS */
@supports not (-webkit-hyphens:none) {
@font-face {
font-family: ~"system-ui@{locale}";
src: local("HelveticaNeue");
unicode-range: U+20;
}
}
:root {
/* Special handling for Firefox on Windows/Linux */
@supports (-moz-appearance:none) {
--fonts-default-override@{locale}: ~"var(--fonts-proportional), system-ui@{locale}";
}
--fonts-default-override@{locale}: ~"system-ui@{locale}, var(--fonts-proportional)";
}
});
@fonts: {
@ja:
"HiraginoSans-:{W2,W4,W5,W6}", "HiraKakuProN-:{W3,W6}", "Hiragino Kaku Gothic ProN :{W3,W6}",
.shs("JP")[], .shs("J")[], .noto("JP")[], .shs("")[],
/* https://acetaminophen.hatenablog.com/entry/2016/02/15/225009 */
"Yu Gothic :{Regular,Medium,Bold}", "YuGothic :{Regular,Medium,Bold}",
"Droid Sans Japanese:{}", "Meiryo:{, Bold}", "MS PGothic:{}";
@zh-cn:
.pingfang("SC")[],
.shs("CN")[], .shs("SC")[], .noto("SC")[],
"HiraginoSansGB-:{W3,W6}", "Hiragino Sans GB :{W3,W6}",
"Microsoft YaHei:{ Light,, Bold}", "Heiti SC :{Light,Medium}", "SimHei:{}";
@zh-tw:
.pingfang("TC")[],
.shs("TW")[], .shs("TC")[], .noto("TC")[],
"HiraginoSansTC-:{W3,W6}", "Hiragino Sans TC :{W3,W6}",
"Microsoft JhengHei:{ Light,, Bold}", "Heiti TC :{Light,Medium}", "PMingLiU:{}";
@zh-hk:
.pingfang("HK")[],
.shs("HK")[], .shs("HC")[], .noto("HK")[], .shs("TC")[], .noto("TC")[],
"HiraginoSansTC-:{W3,W6}", "Hiragino Sans TC :{W3,W6}",
"Microsoft JhengHei:{ Light,, Bold}", "Heiti TC :{Light,Medium}", "PMingLiU_HKSCS:{}", "PMingLiU:{}";
@ko:
"AppleSDGothicNeo-:{Light,Regular,Medium,SemiBold}",
.shs("KR")[], .shs("K")[], .noto("KR")[],
"NanumBarunGothic:{ Light,, Bold}",
"Malgun Gothic:{ Semilight,, Bold}", "Nanum Gothic:{, Bold}", "Dotum:{}";
}
.noto(@suffix) { @value: "Noto Sans CJK @{suffix} ", "NotoSansCJK@{suffix}-"; }
.shs(@suffix) { @value: replace("Source Han Sans @{suffix} ", " ", " "), "SourceHanSans@{suffix}-"; }
.pingfang(@suffix) { @value: "PingFang@{suffix}-:{Light,Regular,Medium,Semibold}"; }
.font-face-cjk(@family, @src, @weight) {
@font-face {
font-family: @family;
src: @src;
font-weight: @weight;
unicode-range: ~"U+11??, U+2E80-4DBF, U+4E00-9FFF, U+A960-A97F, U+AC00-D7FF, U+F900-FAFF, U+FE00-FE6F, U+FF00-FFEF, U+1F2??, U+2????";
}
}
.gen-weights(@family) when (isstring(@family)) {
@family-str: replace(@family, ":\{.*\}$", "");
// apply standard style names if none is given
// should the font have no styles, use :{}, as in "SimHei:{}"
@weights-str: if(@family = @family-str, "Light,Regular,Medium,Bold", replace(@family, ".*:\{(.*)\}$", "$1"));
@lightest: replace(@weights-str, ",.*", "");
@boldest: replace(@weights-str, ".*,", "");
@2ndboldest: replace(@weights-str, "(?:.*,|)([^,]*),.*$", "$1");
@2ndlightest: if(@2ndboldest = @lightest, @lightest, replace(@weights-str, "^.*?,([^,]*).*", "$1"));
@light: local("@{family-str}@{lightest}");
@regular: local("@{family-str}@{2ndlightest}");
@medium: local("@{family-str}@{2ndboldest}");
@bold: local("@{family-str}@{boldest}");
}
.gen-weights(@family) when not (isstring(@family)) {
.gen-weights-all(@family);
}
.gen-weights(@family, @last) {
@this: .gen-weights(@family);
@light: @last[@light], @this[@light];
@regular: @last[@regular], @this[@regular];
@medium: @last[@medium], @this[@medium];
@bold: @last[@bold], @this[@bold];
}
.gen-weights-all(@family) when not (isstring(@family)) {
.gen-weights-all(@family, length(@family));
}
.gen-weights-all(@family, 1) when not (isstring(@family)) {
.gen-weights(extract(@family, 1));
}
.gen-weights-all(@family, @ctr) when not (isstring(@family)) and (@ctr > 1) and (@ctr <= length(@family)) {
.gen-weights(extract(@family, @ctr), .gen-weights-all(@family, @ctr - 1));
}

1
web_src/less/index.less
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@ -13,6 +13,7 @@
@import "_svg"; @import "_svg";
@import "_tribute"; @import "_tribute";
@import "_font_i18n";
@import "_base"; @import "_base";
@import "_markdown"; @import "_markdown";
@import "_home"; @import "_home";