gecko-dev/layout/mathml/mathml.css
Emilio Cobos Álvarez 325bc7b486 Bug 1859538 - Allow chrome stylesheets to be parsed in parallel. r=layout-reviewers,desktop-theme-reviewers,dao,Gijs,tlouw
This changes -moz-bool-pref from @supports to @media, bringing various
improvements:

 * @media (-moz-bool-pref) properly reacts to dynamic changes.
 * We no longer need to parse chrome:// stylesheets in the main thread
   (-moz-bool-pref was the only thing that forced us to do that).

This makes privileged and non-privileged stylesheets more similar.

Differential Revision: https://phabricator.services.mozilla.com/D191196
2023-10-19 10:50:27 +00:00

319 lines
10 KiB
CSS

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**************************************************************************/
/* namespace for MathML elements */
/**************************************************************************/
@namespace url(http://www.w3.org/1998/Math/MathML);
* {
writing-mode: horizontal-tb !important;
font-size: math;
}
/**************************************************************************/
/* <math> - outermost math element */
/**************************************************************************/
math {
direction: ltr;
unicode-bidi: embed;
display: inline;
font-size: inherit;
font-style: normal;
font-weight: normal;
text-indent: 0;
font-family: serif;
line-height: normal;
word-spacing: normal;
letter-spacing: normal;
text-rendering: optimizeLegibility;
-moz-float-edge: margin-box;
math-style: compact;
math-depth: 0;
}
math[display="block" i] {
display: block;
text-align: -moz-center;
math-style: normal;
}
math[display="inline" i] {
display: inline;
math-style: compact;
}
/**************************************************************************/
/* Links */
/**************************************************************************/
:any-link {
text-decoration: none !important;
}
/**************************************************************************/
/* attributes common to all tags */
/**************************************************************************/
/* These attributes are mapped to style in MathMLElement.cpp:
- background -> background (deprecated)
- color -> color (deprecated)
- fontfamily -> font-family (deprecated)
- fontsize -> font-size (deprecated)
- fontstyle -> font-style (deprecated)
- fontweight -> font-weight (deprecated)
- mathvariant -> -moz-math-variant
- scriptlevel -> math-depth
- mathsize -> font-size
- mathcolor -> color
- mathbackground -> background
*/
/**************************************************************************/
/* merror */
/**************************************************************************/
merror {
display: block;
font-family: sans-serif;
font-weight: bold;
white-space: pre;
margin: 1em;
padding: 1em;
border-width: thin;
border-style: inset;
border-color: red;
font-size: 14pt;
background-color: lightyellow;
}
/**************************************************************************/
/* mtable and its related tags */
/**************************************************************************/
mtable {
display: inline-table;
border-collapse: separate;
border-spacing: 0;
text-indent: 0;
}
mtable[frame="none"] {
border: none;
}
mtable[frame="solid"] {
border: solid thin;
}
mtable[frame="dashed"] {
border: dashed thin;
}
mtr, mlabeledtr {
display: table-row;
vertical-align: baseline;
}
mtd {
display: table-cell;
vertical-align: inherit;
text-align: -moz-center;
white-space: nowrap;
}
/* Don't support m(labeled)tr without mtable, nor mtd without m(labeled)tr */
:not(mtable) > mtr,
:not(mtable) > mlabeledtr,
:not(mtr, mlabeledtr) > mtd {
display: none !important;
}
/* Hide the label because mlabeledtr is not supported yet (bug 356870). This
rule can be overriden by users. */
mlabeledtr > mtd:first-child {
display: none;
}
/**********************************************************************/
/* rules to achieve the default spacing between cells. When rowspacing,
columnspacing and framespacing aren't set on mtable. The back-end code
will set the internal attributes depending on the cell's position.
When they are set, the spacing behaviour is handled outside of CSS */
mtd {
padding-right: 0.4em; /* half of columnspacing[colindex] */
padding-left: 0.4em; /* half of columnspacing[colindex-1] */
padding-bottom: 0.5ex; /* half of rowspacing[rowindex] */
padding-top: 0.5ex; /* half of rowspacing[rowindex-1] */
}
/* turn off the spacing at the periphery of boundary cells */
mtr:first-child > mtd {
padding-top: 0ex;
}
mtr:last-child > mtd {
padding-bottom: 0ex;
}
mtd:first-child {
padding-inline-start: 0em;
}
mtd:last-child {
padding-inline-end: 0em;
}
/* re-instate the spacing if the table has a surrounding frame */
mtable[frame="solid"] > mtr:first-child > mtd,
mtable[frame="dashed"] > mtr:first-child > mtd {
padding-top: 0.5ex; /* framespacing.top */
}
mtable[frame="solid"] > mtr:last-child > mtd,
mtable[frame="dashed"] > mtr:last-child > mtd {
padding-bottom: 0.5ex; /* framespacing.bottom */
}
mtable[frame="solid"] > mtr > mtd:first-child,
mtable[frame="dashed"] > mtr > mtd:first-child {
padding-inline-start: 0.4em; /* framespacing.left (or right in rtl)*/
}
mtable[frame="solid"] > mtr > mtd:last-child,
mtable[frame="dashed"] > mtr > mtd:last-child {
padding-inline-end: 0.4em; /* framespacing.right (or left in rtl)*/
}
mtable[rowspacing] > mtr > mtd,
mtable[columnspacing] > mtr > mtd,
mtable[framespacing] > mtr > mtd {
/* Spacing handled outside of CSS */
padding: 0px;
}
/**********************************************************************/
/* This is used when wrapping non-MathML inline elements inside math. */
*|*::-moz-mathml-anonymous-block {
display: inline-block !important;
position: static !important;
text-indent: 0;
}
/**************************************************************************/
/* Controlling Displaystyle and Scriptlevel */
/**************************************************************************/
/*
http://www.w3.org/Math/draft-spec/chapter3.html#presm.scriptlevel
The determination of math-style for <math> involves the displaystyle
and display attributes. See the <math> section above.
*/
/* munder, mover and munderover change the scriptlevels of their children
using -moz-math-increment-script-level because regular CSS rules are
insufficient to control when the scriptlevel should be incremented. All other
cases can be described using regular CSS, so we do it this way because it's
more efficient and less code. */
:-moz-math-increment-script-level { math-depth: add(1); }
/*
The mfrac element sets displaystyle to "false", or if it was already false
increments scriptlevel by 1, within numerator and denominator.
*/
mfrac > * {
math-depth: auto-add;
math-style: compact;
}
/*
The mroot element increments scriptlevel by 2, and sets displaystyle to
"false", within index, but leaves both attributes unchanged within base.
The msqrt element leaves both attributes unchanged within its argument.
*/
mroot > :not(:first-child) {
math-depth: add(2);
math-style: compact;
}
/*
The msub element [...] increments scriptlevel by 1, and sets displaystyle to
"false", within subscript, but leaves both attributes unchanged within base.
The msup element [...] increments scriptlevel by 1, and sets displaystyle to
"false", within superscript, but leaves both attributes unchanged within
base.
The msubsup element [...] increments scriptlevel by 1, and sets displaystyle
to "false", within subscript and superscript, but leaves both attributes
unchanged within base.
The mmultiscripts element increments scriptlevel by 1, and sets displaystyle
to "false", within each of its arguments except base, but leaves both
attributes unchanged within base.
*/
msub > :not(:first-child),
msup > :not(:first-child),
msubsup > :not(:first-child),
mmultiscripts > :not(:first-child) {
math-depth: add(1);
math-style: compact;
}
/*
The munder element [...] always sets displaystyle to "false" within the
underscript, but increments scriptlevel by 1 only when accentunder is
"false". Within base, it always leaves both attributes unchanged.
The mover element [...] always sets displaystyle to "false" within
overscript, but increments scriptlevel by 1 only when accent is "false".
Within base, it always leaves both attributes unchanged.
The munderover [..] always sets displaystyle to "false" within underscript
and overscript, but increments scriptlevel by 1 only when accentunder or
accent, respectively, are "false". Within base, it always leaves both
attributes unchanged.
*/
munder > :not(:first-child),
mover > :not(:first-child),
munderover > :not(:first-child) {
math-style: compact;
}
/*
The displaystyle attribute is allowed on the mtable element to set the
inherited value of the attribute. If the attribute is not present, the
mtable element sets displaystyle to "false" within the table elements.
*/
mtable { math-style: compact; }
/*
The mscarries element sets displaystyle to "false", and increments
scriptlevel by 1, so the children are typically displayed in a smaller font.
XXXfredw: This element is not implemented yet. See bug 534967.
mscarries {
math-depth: add(1);
math-style: compact;
}
*/
/* "The mphantom element renders invisibly, but with the same size and other
dimensions, including baseline position, that its contents would have if
they were rendered normally.".
Also, we do not expose the <mphantom> element to the accessible tree
(see bug 1108378). */
mphantom {
visibility: hidden;
}
/* Implement MathML Core's semantics/maction support
https://w3c.github.io/mathml-core/#dfn-semantics
https://w3c.github.io/mathml-core/#dfn-maction */
maction > :not(:first-child),
semantics > :not(:first-child) {
display: none;
}
/* stylelint-disable-next-line media-query-no-invalid */
@media (-moz-bool-pref: "mathml.legacy_mathvariant_attribute.disabled") {
/* Implement MathML Core's automatic italic on mi.
https://w3c.github.io/mathml-core/#the-mathvariant-attribute */
mi {
text-transform: math-auto;
}
}