Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-10-04 02:29:12 +01:00
Code Issues Projects Releases Packages Wiki Activity
servo/components/style/properties/longhand/box.mako.rs
Daisuke Akatsuka 21b7b256c2 Implements bitflags properties animatable
2017-06-09 23:46:11 +09:00

2005 lines
94 KiB
Rust
Raw Blame History

/* 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 name="helpers" file="/helpers.mako.rs" />
<% from data import Keyword, Method, to_rust_ident, to_camel_case%>
<% data.new_style_struct("Box",
inherited=False,
gecko_name="Display") %>
// TODO(SimonSapin): don't parse `inline-table`, since we don't support it
<%helpers:longhand name="display"
need_clone="True"
animation_value_type="none"
custom_cascade="${product == 'servo'}"
spec="https://drafts.csswg.org/css-display/#propdef-display">
<%
values = """inline block inline-block
table inline-table table-row-group table-header-group table-footer-group
table-row table-column-group table-column table-cell table-caption
list-item flex inline-flex
none
""".split()
if product == "gecko":
values += """grid inline-grid ruby ruby-base ruby-base-container
ruby-text ruby-text-container contents flow-root -webkit-box
-webkit-inline-box -moz-box -moz-inline-box -moz-grid -moz-inline-grid
-moz-grid-group -moz-grid-line -moz-stack -moz-inline-stack -moz-deck
-moz-popup -moz-groupbox""".split()
%>
use values::computed::ComputedValueAsSpecified;
use style_traits::ToCss;
no_viewport_percentage!(SpecifiedValue);
pub mod computed_value {
pub use super::SpecifiedValue as T;
impl T {
/// Returns whether this "display" value is the display of a flex or
/// grid container.
///
/// This is used to implement various style fixups.
pub fn is_item_container(&self) -> bool {
matches!(*self,
T::flex
| T::inline_flex
% if product == "gecko":
| T::grid
| T::inline_grid
% endif
)
}
/// Convert this display into an equivalent block display.
///
/// Also used for style adjustments.
pub fn equivalent_block_display(&self, _is_root_element: bool) -> Self {
match *self {
// Values that have a corresponding block-outside version.
T::inline_table => T::table,
T::inline_flex => T::flex,
% if product == "gecko":
T::inline_grid => T::grid,
T::_webkit_inline_box => T::_webkit_box,
% endif
// Special handling for contents and list-item on the root
// element for Gecko.
% if product == "gecko":
T::contents | T::list_item if _is_root_element => T::block,
% endif
// These are not changed by blockification.
T::none | T::block | T::flex | T::list_item | T::table => *self,
% if product == "gecko":
T::contents | T::flow_root | T::grid | T::_webkit_box => *self,
% endif
// Everything else becomes block.
_ => T::block,
}
}
}
}
#[allow(non_camel_case_types)]
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
pub enum SpecifiedValue {
% for value in values:
${to_rust_ident(value)},
% endfor
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> ::std::fmt::Result
where W: ::std::fmt::Write,
{
match *self {
% for value in values:
SpecifiedValue::${to_rust_ident(value)} => dest.write_str("${value}"),
% endfor
}
}
}
/// The initial display value.
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T::${to_rust_ident(values[0])}
}
/// Parse a display value.
pub fn parse(_context: &ParserContext, input: &mut Parser)
-> Result<SpecifiedValue, ()> {
match_ignore_ascii_case! { &try!(input.expect_ident()),
% for value in values:
"${value}" => {
Ok(computed_value::T::${to_rust_ident(value)})
},
% endfor
_ => Err(())
}
}
impl ComputedValueAsSpecified for SpecifiedValue {}
% if product == "servo":
fn cascade_property_custom(_declaration: &PropertyDeclaration,
_inherited_style: &ComputedValues,
context: &mut computed::Context,
_cacheable: &mut bool,
_error_reporter: &ParseErrorReporter) {
longhands::_servo_display_for_hypothetical_box::derive_from_display(context);
longhands::_servo_text_decorations_in_effect::derive_from_display(context);
longhands::_servo_under_display_none::derive_from_display(context);
}
% endif
${helpers.gecko_keyword_conversion(Keyword('display', ' '.join(values),
gecko_enum_prefix='StyleDisplay',
gecko_strip_moz_prefix=False))}
</%helpers:longhand>
${helpers.single_keyword("-moz-top-layer", "none top",
gecko_constant_prefix="NS_STYLE_TOP_LAYER",
gecko_ffi_name="mTopLayer", need_clone=True,
products="gecko", animation_value_type="none", internal=True,
spec="Internal (not web-exposed)")}
${helpers.single_keyword("position", "static absolute relative fixed",
extra_gecko_values="sticky",
animation_value_type="discrete",
flags="CREATES_STACKING_CONTEXT ABSPOS_CB",
spec="https://drafts.csswg.org/css-position/#position-property")}
<%helpers:single_keyword_computed name="float"
values="none left right"
// https://drafts.csswg.org/css-logical-props/#float-clear
extra_specified="inline-start inline-end"
needs_conversion="True"
animation_value_type="discrete"
gecko_enum_prefix="StyleFloat"
gecko_inexhaustive="True"
gecko_ffi_name="mFloat"
spec="https://drafts.csswg.org/css-box/#propdef-float">
no_viewport_percentage!(SpecifiedValue);
impl ToComputedValue for SpecifiedValue {
type ComputedValue = computed_value::T;
#[inline]
fn to_computed_value(&self, context: &Context) -> computed_value::T {
let ltr = context.style().writing_mode.is_bidi_ltr();
// https://drafts.csswg.org/css-logical-props/#float-clear
match *self {
SpecifiedValue::inline_start if ltr => computed_value::T::left,
SpecifiedValue::inline_start => computed_value::T::right,
SpecifiedValue::inline_end if ltr => computed_value::T::right,
SpecifiedValue::inline_end => computed_value::T::left,
% for value in "none left right".split():
SpecifiedValue::${value} => computed_value::T::${value},
% endfor
}
}
#[inline]
fn from_computed_value(computed: &computed_value::T) -> SpecifiedValue {
match *computed {
% for value in "none left right".split():
computed_value::T::${value} => SpecifiedValue::${value},
% endfor
}
}
}
</%helpers:single_keyword_computed>
<%helpers:single_keyword_computed name="clear"
values="none left right both"
// https://drafts.csswg.org/css-logical-props/#float-clear
extra_specified="inline-start inline-end"
needs_conversion="True"
gecko_inexhaustive="True"
animation_value_type="discrete"
gecko_enum_prefix="StyleClear"
gecko_ffi_name="mBreakType"
spec="https://www.w3.org/TR/CSS2/visuren.html#flow-control">
no_viewport_percentage!(SpecifiedValue);
impl ToComputedValue for SpecifiedValue {
type ComputedValue = computed_value::T;
#[inline]
fn to_computed_value(&self, context: &Context) -> computed_value::T {
let ltr = context.style().writing_mode.is_bidi_ltr();
// https://drafts.csswg.org/css-logical-props/#float-clear
match *self {
SpecifiedValue::inline_start if ltr => computed_value::T::left,
SpecifiedValue::inline_start => computed_value::T::right,
SpecifiedValue::inline_end if ltr => computed_value::T::right,
SpecifiedValue::inline_end => computed_value::T::left,
% for value in "none left right both".split():
SpecifiedValue::${value} => computed_value::T::${value},
% endfor
}
}
#[inline]
fn from_computed_value(computed: &computed_value::T) -> SpecifiedValue {
match *computed {
% for value in "none left right both".split():
computed_value::T::${value} => SpecifiedValue::${value},
% endfor
}
}
}
</%helpers:single_keyword_computed>
<%helpers:longhand name="-servo-display-for-hypothetical-box"
animation_value_type="none"
derived_from="display"
products="servo"
spec="Internal (not web-exposed)">
pub use super::display::{SpecifiedValue, get_initial_value};
pub use super::display::{parse};
pub mod computed_value {
pub type T = super::SpecifiedValue;
}
#[inline]
pub fn derive_from_display(context: &mut Context) {
let d = context.style().get_box().clone_display();
context.mutate_style().mutate_box().set__servo_display_for_hypothetical_box(d);
}
</%helpers:longhand>
<%helpers:longhand name="vertical-align" animation_value_type="ComputedValue"
spec="https://www.w3.org/TR/CSS2/visudet.html#propdef-vertical-align">
use std::fmt;
use style_traits::ToCss;
use values::specified::AllowQuirks;
<% vertical_align = data.longhands_by_name["vertical-align"] %>
<% vertical_align.keyword = Keyword("vertical-align",
"baseline sub super top text-top middle bottom text-bottom",
extra_gecko_values="-moz-middle-with-baseline") %>
<% vertical_align_keywords = vertical_align.keyword.values_for(product) %>
${helpers.gecko_keyword_conversion(vertical_align.keyword)}
/// The `vertical-align` value.
#[allow(non_camel_case_types)]
#[derive(Clone, Debug, HasViewportPercentage, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum SpecifiedValue {
% for keyword in vertical_align_keywords:
${to_rust_ident(keyword)},
% endfor
LengthOrPercentage(specified::LengthOrPercentage),
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
% for keyword in vertical_align_keywords:
SpecifiedValue::${to_rust_ident(keyword)} => dest.write_str("${keyword}"),
% endfor
SpecifiedValue::LengthOrPercentage(ref value) => value.to_css(dest),
}
}
}
/// baseline | sub | super | top | text-top | middle | bottom | text-bottom
/// | <percentage> | <length>
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
input.try(|i| specified::LengthOrPercentage::parse_quirky(context, i, AllowQuirks::Yes))
.map(SpecifiedValue::LengthOrPercentage)
.or_else(|_| {
match_ignore_ascii_case! { &try!(input.expect_ident()),
% for keyword in vertical_align_keywords:
"${keyword}" => Ok(SpecifiedValue::${to_rust_ident(keyword)}),
% endfor
_ => Err(())
}
})
}
/// The computed value for `vertical-align`.
pub mod computed_value {
use std::fmt;
use style_traits::ToCss;
use values::computed;
/// The keywords are the same, and the `LengthOrPercentage` is computed
/// here.
#[allow(non_camel_case_types)]
#[derive(PartialEq, Copy, Clone, Debug)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum T {
% for keyword in vertical_align_keywords:
${to_rust_ident(keyword)},
% endfor
LengthOrPercentage(computed::LengthOrPercentage),
}
impl ToCss for T {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
% for keyword in vertical_align_keywords:
T::${to_rust_ident(keyword)} => dest.write_str("${keyword}"),
% endfor
T::LengthOrPercentage(ref value) => value.to_css(dest),
}
}
}
}
/// The initial computed value for `vertical-align`.
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T::baseline
}
impl ToComputedValue for SpecifiedValue {
type ComputedValue = computed_value::T;
#[inline]
fn to_computed_value(&self, context: &Context) -> computed_value::T {
match *self {
% for keyword in vertical_align_keywords:
SpecifiedValue::${to_rust_ident(keyword)} => {
computed_value::T::${to_rust_ident(keyword)}
}
% endfor
SpecifiedValue::LengthOrPercentage(ref value) =>
computed_value::T::LengthOrPercentage(value.to_computed_value(context)),
}
}
#[inline]
fn from_computed_value(computed: &computed_value::T) -> Self {
match *computed {
% for keyword in vertical_align_keywords:
computed_value::T::${to_rust_ident(keyword)} => {
SpecifiedValue::${to_rust_ident(keyword)}
}
% endfor
computed_value::T::LengthOrPercentage(value) =>
SpecifiedValue::LengthOrPercentage(
ToComputedValue::from_computed_value(&value)
),
}
}
}
</%helpers:longhand>
// CSS 2.1, Section 11 - Visual effects
${helpers.single_keyword("-servo-overflow-clip-box", "padding-box content-box",
products="servo", animation_value_type="none", internal=True,
spec="Internal, not web-exposed, \
may be standardized in the future (https://developer.mozilla.org/en-US/docs/Web/CSS/overflow-clip-box)")}
${helpers.single_keyword("overflow-clip-box", "padding-box content-box",
products="gecko", animation_value_type="discrete", internal=True,
spec="Internal, not web-exposed, \
may be standardized in the future (https://developer.mozilla.org/en-US/docs/Web/CSS/overflow-clip-box)")}
<%
overflow_custom_consts = { "-moz-hidden-unscrollable": "CLIP" }
%>
// FIXME(pcwalton, #2742): Implement scrolling for `scroll` and `auto`.
${helpers.single_keyword("overflow-x", "visible hidden scroll auto",
need_clone=True, animation_value_type="discrete",
extra_gecko_values="-moz-hidden-unscrollable",
custom_consts=overflow_custom_consts,
gecko_constant_prefix="NS_STYLE_OVERFLOW",
spec="https://drafts.csswg.org/css-overflow/#propdef-overflow-x")}
// FIXME(pcwalton, #2742): Implement scrolling for `scroll` and `auto`.
<%helpers:longhand name="overflow-y" need_clone="True" animation_value_type="discrete"
spec="https://drafts.csswg.org/css-overflow/#propdef-overflow-y">
pub use super::overflow_x::{SpecifiedValue, parse, get_initial_value, computed_value};
</%helpers:longhand>
${helpers.predefined_type("transition-duration",
"Time",
"computed::Time::zero()",
initial_specified_value="specified::Time::zero()",
parse_method="parse_non_negative",
vector=True,
need_index=True,
animation_value_type="none",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-transitions/#propdef-transition-duration")}
${helpers.predefined_type("transition-timing-function",
"TimingFunction",
"computed::TimingFunction::ease()",
initial_specified_value="specified::TimingFunction::ease()",
vector=True,
need_index=True,
animation_value_type="none",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-transitions/#propdef-transition-timing-function")}
${helpers.predefined_type("transition-property",
"TransitionProperty",
"computed::TransitionProperty::All",
initial_specified_value="specified::TransitionProperty::All",
vector=True,
allow_empty=True,
need_index=True,
needs_context=False,
animation_value_type="none",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-transitions/#propdef-transition-property")}
${helpers.predefined_type("transition-delay",
"Time",
"computed::Time::zero()",
initial_specified_value="specified::Time::zero()",
vector=True,
need_index=True,
animation_value_type="none",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-transitions/#propdef-transition-delay")}
<%helpers:vector_longhand name="animation-name"
need_index="True"
animation_value_type="none",
extra_prefixes="moz webkit"
allowed_in_keyframe_block="False"
spec="https://drafts.csswg.org/css-animations/#propdef-animation-name">
use Atom;
use std::fmt;
use style_traits::ToCss;
use values::computed::ComputedValueAsSpecified;
use values::KeyframesName;
pub mod computed_value {
pub use super::SpecifiedValue as T;
}
#[derive(Clone, Debug, Hash, Eq, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct SpecifiedValue(pub Option<KeyframesName>);
impl SpecifiedValue {
/// As an Atom
pub fn as_atom(&self) -> Option< &Atom> {
self.0.as_ref().map(|n| n.as_atom())
}
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
get_initial_specified_value()
}
#[inline]
pub fn get_initial_specified_value() -> SpecifiedValue {
SpecifiedValue(None)
}
impl fmt::Display for SpecifiedValue {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.to_css(f)
}
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
if let Some(ref name) = self.0 {
name.to_css(dest)
} else {
dest.write_str("none")
}
}
}
impl Parse for SpecifiedValue {
fn parse(context: &ParserContext, input: &mut ::cssparser::Parser) -> Result<Self, ()> {
if let Ok(name) = input.try(|input| KeyframesName::parse(context, input)) {
Ok(SpecifiedValue(Some(name)))
} else {
input.expect_ident_matching("none").map(|()| SpecifiedValue(None))
}
}
}
no_viewport_percentage!(SpecifiedValue);
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue,()> {
SpecifiedValue::parse(context, input)
}
impl ComputedValueAsSpecified for SpecifiedValue {}
</%helpers:vector_longhand>
${helpers.predefined_type("animation-duration",
"Time",
"computed::Time::zero()",
initial_specified_value="specified::Time::zero()",
parse_method="parse_non_negative",
vector=True,
need_index=True,
animation_value_type="none",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-transitions/#propdef-transition-duration")}
${helpers.predefined_type("animation-timing-function",
"TimingFunction",
"computed::TimingFunction::ease()",
initial_specified_value="specified::TimingFunction::ease()",
vector=True,
need_index=True,
animation_value_type="none",
extra_prefixes="moz webkit",
allowed_in_keyframe_block=True,
spec="https://drafts.csswg.org/css-transitions/#propdef-animation-timing-function")}
<%helpers:vector_longhand name="animation-iteration-count"
need_index="True"
animation_value_type="none",
extra_prefixes="moz webkit"
spec="https://drafts.csswg.org/css-animations/#propdef-animation-iteration-count",
allowed_in_keyframe_block="False">
use values::computed::ComputedValueAsSpecified;
pub mod computed_value {
pub use super::SpecifiedValue as T;
}
// https://drafts.csswg.org/css-animations/#animation-iteration-count
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
#[derive(Debug, Clone, PartialEq, ToCss)]
pub enum SpecifiedValue {
Number(f32),
Infinite,
}
impl Parse for SpecifiedValue {
fn parse(_context: &ParserContext, input: &mut ::cssparser::Parser) -> Result<Self, ()> {
if input.try(|input| input.expect_ident_matching("infinite")).is_ok() {
return Ok(SpecifiedValue::Infinite)
}
let number = try!(input.expect_number());
if number < 0.0 {
return Err(());
}
Ok(SpecifiedValue::Number(number))
}
}
no_viewport_percentage!(SpecifiedValue);
#[inline]
pub fn get_initial_value() -> computed_value::T {
get_initial_specified_value()
}
#[inline]
pub fn get_initial_specified_value() -> SpecifiedValue {
SpecifiedValue::Number(1.0)
}
#[inline]
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
SpecifiedValue::parse(context, input)
}
impl ComputedValueAsSpecified for SpecifiedValue {}
</%helpers:vector_longhand>
<% animation_direction_custom_consts = { "alternate-reverse": "Alternate_reverse" } %>
${helpers.single_keyword("animation-direction",
"normal reverse alternate alternate-reverse",
need_index=True,
animation_value_type="none",
vector=True,
gecko_enum_prefix="PlaybackDirection",
custom_consts=animation_direction_custom_consts,
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-animations/#propdef-animation-direction",
allowed_in_keyframe_block=False)}
// animation-play-state is the exception to the rule for allowed_in_keyframe_block:
// https://drafts.csswg.org/css-animations/#keyframes
${helpers.single_keyword("animation-play-state",
"running paused",
need_clone=True,
need_index=True,
animation_value_type="none",
vector=True,
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-animations/#propdef-animation-play-state",
allowed_in_keyframe_block=True)}
${helpers.single_keyword("animation-fill-mode",
"none forwards backwards both",
need_index=True,
animation_value_type="none",
vector=True,
gecko_enum_prefix="FillMode",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-animations/#propdef-animation-fill-mode",
allowed_in_keyframe_block=False)}
${helpers.predefined_type("animation-delay",
"Time",
"computed::Time::zero()",
initial_specified_value="specified::Time::zero()",
vector=True,
need_index=True,
animation_value_type="none",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-animations/#propdef-animation-delay",
allowed_in_keyframe_block=False)}
% for axis in ["x", "y"]:
${helpers.predefined_type(
"scroll-snap-points-" + axis,
"ScrollSnapPoint",
"computed::ScrollSnapPoint::none()",
animation_value_type="none",
products="gecko",
disable_when_testing=True,
spec="Nonstandard (https://www.w3.org/TR/2015/WD-css-snappoints-1-20150326/#scroll-snap-points)",
)}
% endfor
${helpers.predefined_type("scroll-snap-destination",
"Position",
"computed::Position::zero()",
products="gecko",
boxed="True",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-destination)",
animation_value_type="ComputedValue")}
${helpers.predefined_type("scroll-snap-coordinate",
"Position",
"computed::Position::zero()",
vector=True,
products="gecko",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-destination)",
animation_value_type="ComputedValue",
allow_empty=True,
delegate_animate=True)}
<%helpers:longhand name="transform" extra_prefixes="webkit"
animation_value_type="ComputedValue"
flags="CREATES_STACKING_CONTEXT FIXPOS_CB"
spec="https://drafts.csswg.org/css-transforms/#propdef-transform">
use app_units::Au;
use values::computed::{LengthOrPercentageOrNumber as ComputedLoPoNumber, LengthOrNumber as ComputedLoN};
use values::computed::{LengthOrPercentage as ComputedLoP, Length as ComputedLength};
use values::specified::{Angle, Integer, Length, LengthOrPercentage, Percentage};
use values::specified::{LengthOrNumber, LengthOrPercentageOrNumber as LoPoNumber, Number};
use style_traits::ToCss;
use style_traits::values::Css;
use std::fmt;
pub mod computed_value {
use app_units::Au;
use values::CSSFloat;
use values::computed;
use values::computed::{Length, LengthOrPercentage, Percentage};
#[derive(Clone, Copy, Debug, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct ComputedMatrix {
pub m11: CSSFloat, pub m12: CSSFloat, pub m13: CSSFloat, pub m14: CSSFloat,
pub m21: CSSFloat, pub m22: CSSFloat, pub m23: CSSFloat, pub m24: CSSFloat,
pub m31: CSSFloat, pub m32: CSSFloat, pub m33: CSSFloat, pub m34: CSSFloat,
pub m41: CSSFloat, pub m42: CSSFloat, pub m43: CSSFloat, pub m44: CSSFloat,
}
#[derive(Clone, Copy, Debug, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct ComputedMatrixWithPercents {
pub m11: CSSFloat, pub m12: CSSFloat, pub m13: CSSFloat, pub m14: CSSFloat,
pub m21: CSSFloat, pub m22: CSSFloat, pub m23: CSSFloat, pub m24: CSSFloat,
pub m31: CSSFloat, pub m32: CSSFloat, pub m33: CSSFloat, pub m34: CSSFloat,
pub m41: LengthOrPercentage, pub m42: LengthOrPercentage,
pub m43: Length, pub m44: CSSFloat,
}
impl ComputedMatrix {
pub fn identity() -> ComputedMatrix {
ComputedMatrix {
m11: 1.0, m12: 0.0, m13: 0.0, m14: 0.0,
m21: 0.0, m22: 1.0, m23: 0.0, m24: 0.0,
m31: 0.0, m32: 0.0, m33: 1.0, m34: 0.0,
m41: 0.0, m42: 0.0, m43: 0.0, m44: 1.0
}
}
}
impl ComputedMatrixWithPercents {
pub fn identity() -> ComputedMatrixWithPercents {
ComputedMatrixWithPercents {
m11: 1.0, m12: 0.0, m13: 0.0, m14: 0.0,
m21: 0.0, m22: 1.0, m23: 0.0, m24: 0.0,
m31: 0.0, m32: 0.0, m33: 1.0, m34: 0.0,
m41: LengthOrPercentage::zero(), m42: LengthOrPercentage::zero(),
m43: Au(0), m44: 1.0
}
}
}
#[derive(Clone, Debug, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum ComputedOperation {
Matrix(ComputedMatrix),
// For `-moz-transform` matrix and matrix3d.
MatrixWithPercents(ComputedMatrixWithPercents),
Skew(computed::Angle, computed::Angle),
Translate(computed::LengthOrPercentage,
computed::LengthOrPercentage,
computed::Length),
Scale(CSSFloat, CSSFloat, CSSFloat),
Rotate(CSSFloat, CSSFloat, CSSFloat, computed::Angle),
Perspective(computed::Length),
// For mismatched transform lists.
// A vector of |ComputedOperation| could contain an |InterpolateMatrix| and other
// |ComputedOperation|s, and multiple nested |InterpolateMatrix|s is acceptable.
// e.g.
// [ InterpolateMatrix { from_list: [ InterpolateMatrix { ... },
// Scale(...) ],
// to_list: [ AccumulateMatrix { from_list: ...,
// to_list: [ InterpolateMatrix,
// ... ],
// count: ... } ],
// progress: ... } ]
InterpolateMatrix { from_list: T,
to_list: T,
progress: Percentage },
// For accumulate operation of mismatched transform lists.
AccumulateMatrix { from_list: T,
to_list: T,
count: computed::Integer },
}
#[derive(Clone, Debug, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct T(pub Option<Vec<ComputedOperation>>);
}
/// Describes a single parsed
/// [Transform Function](https://drafts.csswg.org/css-transforms/#typedef-transform-function).
///
/// Multiple transform functions compose a transformation.
///
/// Some transformations can be expressed by other more general functions.
#[derive(Clone, Debug, HasViewportPercentage, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum SpecifiedOperation {
/// Represents a 2D 2x3 matrix.
Matrix { a: Number, b: Number, c: Number, d: Number, e: Number, f: Number },
/// Represents a 3D 4x4 matrix with percentage and length values.
/// For `moz-transform`.
PrefixedMatrix { a: Number, b: Number, c: Number, d: Number, e: LoPoNumber, f: LoPoNumber },
/// Represents a 3D 4x4 matrix.
Matrix3D {
m11: Number, m12: Number, m13: Number, m14: Number,
m21: Number, m22: Number, m23: Number, m24: Number,
m31: Number, m32: Number, m33: Number, m34: Number,
m41: Number, m42: Number, m43: Number, m44: Number,
},
/// Represents a 3D 4x4 matrix with percentage and length values.
/// For `moz-transform`.
PrefixedMatrix3D {
m11: Number, m12: Number, m13: Number, m14: Number,
m21: Number, m22: Number, m23: Number, m24: Number,
m31: Number, m32: Number, m33: Number, m34: Number,
m41: LoPoNumber, m42: LoPoNumber, m43: LengthOrNumber, m44: Number,
},
/// A 2D skew.
///
/// If the second angle is not provided it is assumed zero.
Skew(Angle, Option<Angle>),
SkewX(Angle),
SkewY(Angle),
Translate(LengthOrPercentage, Option<LengthOrPercentage>),
TranslateX(LengthOrPercentage),
TranslateY(LengthOrPercentage),
TranslateZ(Length),
Translate3D(LengthOrPercentage, LengthOrPercentage, Length),
/// A 2D scaling factor.
///
/// `scale(2)` is parsed as `Scale(Number::new(2.0), None)` and is equivalent to
/// writing `scale(2, 2)` (`Scale(Number::new(2.0), Some(Number::new(2.0)))`).
///
/// Negative values are allowed and flip the element.
Scale(Number, Option<Number>),
ScaleX(Number),
ScaleY(Number),
ScaleZ(Number),
Scale3D(Number, Number, Number),
/// Describes a 2D Rotation.
///
/// In a 3D scene `rotate(angle)` is equivalent to `rotateZ(angle)`.
Rotate(Angle),
/// Rotation in 3D space around the x-axis.
RotateX(Angle),
/// Rotation in 3D space around the y-axis.
RotateY(Angle),
/// Rotation in 3D space around the z-axis.
RotateZ(Angle),
/// Rotation in 3D space.
///
/// Generalization of rotateX, rotateY and rotateZ.
Rotate3D(Number, Number, Number, Angle),
/// Specifies a perspective projection matrix.
///
/// Part of CSS Transform Module Level 2 and defined at
/// [§ 13.1. 3D Transform Function](https://drafts.csswg.org/css-transforms-2/#funcdef-perspective).
///
/// The value must be greater than or equal to zero.
Perspective(specified::Length),
/// A intermediate type for interpolation of mismatched transform lists.
InterpolateMatrix { from_list: SpecifiedValue,
to_list: SpecifiedValue,
progress: Percentage },
/// A intermediate type for accumulation of mismatched transform lists.
AccumulateMatrix { from_list: SpecifiedValue,
to_list: SpecifiedValue,
count: Integer },
}
impl ToCss for computed_value::T {
fn to_css<W>(&self, _: &mut W) -> fmt::Result where W: fmt::Write {
// TODO(pcwalton)
Ok(())
}
}
impl ToCss for SpecifiedOperation {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
use self::SpecifiedOperation::*;
match *self {
Matrix { a, b, c, d, e, f} => write!(
dest, "matrix({}, {}, {}, {}, {}, {})",
Css(a), Css(b), Css(c), Css(d), Css(e), Css(f)),
PrefixedMatrix { a, b, c, d, ref e, ref f} => write!(
dest, "matrix({}, {}, {}, {}, {}, {})",
Css(a), Css(b), Css(c), Css(d), Css(e), Css(f)),
Matrix3D {
m11, m12, m13, m14,
m21, m22, m23, m24,
m31, m32, m33, m34,
m41, m42, m43, m44 } => write!(
dest, "matrix3d({}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {})",
Css(m11), Css(m12), Css(m13), Css(m14),
Css(m21), Css(m22), Css(m23), Css(m24),
Css(m31), Css(m32), Css(m33), Css(m34),
Css(m41), Css(m42), Css(m43), Css(m44)),
PrefixedMatrix3D {
m11, m12, m13, m14,
m21, m22, m23, m24,
m31, m32, m33, m34,
ref m41, ref m42, ref m43, m44 } => write!(
dest, "matrix3d({}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {})",
Css(m11), Css(m12), Css(m13), Css(m14),
Css(m21), Css(m22), Css(m23), Css(m24),
Css(m31), Css(m32), Css(m33), Css(m34),
Css(m41), Css(m42), Css(m43), Css(m44)),
Skew(ax, None) => write!(dest, "skew({})", Css(ax)),
Skew(ax, Some(ay)) => write!(dest, "skew({}, {})", Css(ax), Css(ay)),
SkewX(angle) => write!(dest, "skewX({})", Css(angle)),
SkewY(angle) => write!(dest, "skewY({})", Css(angle)),
Translate(ref tx, None) => write!(dest, "translate({})", Css(tx)),
Translate(ref tx, Some(ref ty)) => write!(dest, "translate({}, {})", Css(tx), Css(ty)),
TranslateX(ref tx) => write!(dest, "translateX({})", Css(tx)),
TranslateY(ref ty) => write!(dest, "translateY({})", Css(ty)),
TranslateZ(ref tz) => write!(dest, "translateZ({})", Css(tz)),
Translate3D(ref tx, ref ty, ref tz) => write!(
dest, "translate3d({}, {}, {})", Css(tx), Css(ty), Css(tz)),
Scale(factor, None) => write!(dest, "scale({})", Css(factor)),
Scale(sx, Some(sy)) => write!(dest, "scale({}, {})", Css(sx), Css(sy)),
ScaleX(sx) => write!(dest, "scaleX({})", Css(sx)),
ScaleY(sy) => write!(dest, "scaleY({})", Css(sy)),
ScaleZ(sz) => write!(dest, "scaleZ({})", Css(sz)),
Scale3D(sx, sy, sz) => write!(dest, "scale3d({}, {}, {})", Css(sx), Css(sy), Css(sz)),
Rotate(theta) => write!(dest, "rotate({})", Css(theta)),
RotateX(theta) => write!(dest, "rotateX({})", Css(theta)),
RotateY(theta) => write!(dest, "rotateY({})", Css(theta)),
RotateZ(theta) => write!(dest, "rotateZ({})", Css(theta)),
Rotate3D(x, y, z, theta) => write!(
dest, "rotate3d({}, {}, {}, {})",
Css(x), Css(y), Css(z), Css(theta)),
Perspective(ref length) => write!(dest, "perspective({})", Css(length)),
_ => unreachable!(),
}
}
}
#[derive(Clone, Debug, HasViewportPercentage, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct SpecifiedValue(Vec<SpecifiedOperation>);
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
if self.0.is_empty() {
return dest.write_str("none")
}
let mut first = true;
for operation in &self.0 {
if !first {
try!(dest.write_str(" "));
}
first = false;
try!(operation.to_css(dest))
}
Ok(())
}
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T(None)
}
// Allow unitless zero angle for rotate() and skew() to align with gecko
fn parse_internal(context: &ParserContext, input: &mut Parser, prefixed: bool)
-> Result<SpecifiedValue,()> {
if input.try(|input| input.expect_ident_matching("none")).is_ok() {
return Ok(SpecifiedValue(Vec::new()))
}
let mut result = Vec::new();
loop {
let name = match input.try(|i| i.expect_function()) {
Ok(name) => name,
Err(_) => break,
};
match_ignore_ascii_case! {
&name,
"matrix" => {
try!(input.parse_nested_block(|input| {
// Standard matrix parsing.
if !prefixed {
let values = try!(input.parse_comma_separated(|input| {
specified::parse_number(context, input)
}));
if values.len() != 6 {
return Err(())
}
result.push(SpecifiedOperation::Matrix {
a: values[0],
b: values[1],
c: values[2],
d: values[3],
e: values[4],
f: values[5],
});
return Ok(());
}
// Non-standard prefixed matrix parsing.
//
// -moz-transform accepts LengthOrPercentageOrNumber in the
// nondiagonal homogeneous components. transform accepts only number.
let mut values = Vec::with_capacity(4);
let mut lengths = Vec::with_capacity(2);
// Consume first number
values.push(specified::parse_number(context, input)?);
// Parse other 5 number/LengthOrPercentageOrNumber
for i in 0..5 {
input.expect_comma()?;
if i < 3 {
values.push(specified::parse_number(context, input)?);
} else {
// -moz-transform accepts LengthOrPercentageOrNumber in the nondiagonal
// homogeneous components. transform accepts only number.
lengths.push(LoPoNumber::parse(context, input)?)
}
}
result.push(SpecifiedOperation::PrefixedMatrix {
a: values[0],
b: values[1],
c: values[2],
d: values[3],
e: lengths[0].clone(),
f: lengths[1].clone(),
});
Ok(())
}))
},
"matrix3d" => {
try!(input.parse_nested_block(|input| {
// Standard matrix3d parsing.
if !prefixed {
let values = try!(input.parse_comma_separated(|i| specified::parse_number(context, i)));
if values.len() != 16 {
return Err(())
}
result.push(SpecifiedOperation::Matrix3D {
m11: values[ 0], m12: values[ 1], m13: values[ 2], m14: values[ 3],
m21: values[ 4], m22: values[ 5], m23: values[ 6], m24: values[ 7],
m31: values[ 8], m32: values[ 9], m33: values[10], m34: values[11],
m41: values[12], m42: values[13], m43: values[14], m44: values[15]
});
return Ok(());
}
// Non-standard prefixed matrix3d parsing.
//
// -moz-transform accepts LengthOrPercentageOrNumber in the
// nondiagonal homogeneous components. transform accepts only number.
let mut values = Vec::with_capacity(13);
let mut lops = Vec::with_capacity(2);
let mut length_or_number = None;
// Parse first number
values.push(specified::parse_number(context, input)?);
// Parse other 15 number/LengthOrPercentageOrNumber
for i in 0..15 {
input.expect_comma()?;
// -moz-transform accepts LengthOrPercentageOrNumber in the nondiagonal
// homogeneous components. transform accepts only number.
if i < 11 || i > 13 {
values.push(specified::parse_number(context, input)?);
} else if i == 13 {
// m43
length_or_number = Some(LengthOrNumber::parse(context, input)?);
} else {
// m41 and m42
lops.push(LoPoNumber::parse(context, input)?);
}
}
result.push(SpecifiedOperation::PrefixedMatrix3D {
m11: values[ 0], m12: values[ 1], m13: values[ 2], m14: values[ 3],
m21: values[ 4], m22: values[ 5], m23: values[ 6], m24: values[ 7],
m31: values[ 8], m32: values[ 9], m33: values[10], m34: values[11],
m41: lops[0].clone(), m42: lops[1].clone(), m43: length_or_number.unwrap(),
m44: values[12]
});
Ok(())
}))
},
"translate" => {
try!(input.parse_nested_block(|input| {
let sx = try!(specified::LengthOrPercentage::parse(context, input));
if input.try(|input| input.expect_comma()).is_ok() {
let sy = try!(specified::LengthOrPercentage::parse(context, input));
result.push(SpecifiedOperation::Translate(sx, Some(sy)));
} else {
result.push(SpecifiedOperation::Translate(sx, None));
}
Ok(())
}))
},
"translatex" => {
try!(input.parse_nested_block(|input| {
let tx = try!(specified::LengthOrPercentage::parse(context, input));
result.push(SpecifiedOperation::TranslateX(tx));
Ok(())
}))
},
"translatey" => {
try!(input.parse_nested_block(|input| {
let ty = try!(specified::LengthOrPercentage::parse(context, input));
result.push(SpecifiedOperation::TranslateY(ty));
Ok(())
}))
},
"translatez" => {
try!(input.parse_nested_block(|input| {
let tz = try!(specified::Length::parse(context, input));
result.push(SpecifiedOperation::TranslateZ(tz));
Ok(())
}))
},
"translate3d" => {
try!(input.parse_nested_block(|input| {
let tx = try!(specified::LengthOrPercentage::parse(context, input));
try!(input.expect_comma());
let ty = try!(specified::LengthOrPercentage::parse(context, input));
try!(input.expect_comma());
let tz = try!(specified::Length::parse(context, input));
result.push(SpecifiedOperation::Translate3D(tx, ty, tz));
Ok(())
}))
},
"scale" => {
try!(input.parse_nested_block(|input| {
let sx = try!(specified::parse_number(context, input));
if input.try(|input| input.expect_comma()).is_ok() {
let sy = try!(specified::parse_number(context, input));
result.push(SpecifiedOperation::Scale(sx, Some(sy)));
} else {
result.push(SpecifiedOperation::Scale(sx, None));
}
Ok(())
}))
},
"scalex" => {
try!(input.parse_nested_block(|input| {
let sx = try!(specified::parse_number(context, input));
result.push(SpecifiedOperation::ScaleX(sx));
Ok(())
}))
},
"scaley" => {
try!(input.parse_nested_block(|input| {
let sy = try!(specified::parse_number(context, input));
result.push(SpecifiedOperation::ScaleY(sy));
Ok(())
}))
},
"scalez" => {
try!(input.parse_nested_block(|input| {
let sz = try!(specified::parse_number(context, input));
result.push(SpecifiedOperation::ScaleZ(sz));
Ok(())
}))
},
"scale3d" => {
try!(input.parse_nested_block(|input| {
let sx = try!(specified::parse_number(context, input));
try!(input.expect_comma());
let sy = try!(specified::parse_number(context, input));
try!(input.expect_comma());
let sz = try!(specified::parse_number(context, input));
result.push(SpecifiedOperation::Scale3D(sx, sy, sz));
Ok(())
}))
},
"rotate" => {
try!(input.parse_nested_block(|input| {
let theta = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::Rotate(theta));
Ok(())
}))
},
"rotatex" => {
try!(input.parse_nested_block(|input| {
let theta = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::RotateX(theta));
Ok(())
}))
},
"rotatey" => {
try!(input.parse_nested_block(|input| {
let theta = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::RotateY(theta));
Ok(())
}))
},
"rotatez" => {
try!(input.parse_nested_block(|input| {
let theta = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::RotateZ(theta));
Ok(())
}))
},
"rotate3d" => {
try!(input.parse_nested_block(|input| {
let ax = try!(specified::parse_number(context, input));
try!(input.expect_comma());
let ay = try!(specified::parse_number(context, input));
try!(input.expect_comma());
let az = try!(specified::parse_number(context, input));
try!(input.expect_comma());
let theta = try!(specified::Angle::parse_with_unitless(context, input));
// TODO(gw): Check the axis can be normalized!!
result.push(SpecifiedOperation::Rotate3D(ax, ay, az, theta));
Ok(())
}))
},
"skew" => {
try!(input.parse_nested_block(|input| {
let theta_x = try!(specified::Angle::parse_with_unitless(context, input));
if input.try(|input| input.expect_comma()).is_ok() {
let theta_y = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::Skew(theta_x, Some(theta_y)));
} else {
result.push(SpecifiedOperation::Skew(theta_x, None));
}
Ok(())
}))
},
"skewx" => {
try!(input.parse_nested_block(|input| {
let theta_x = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::SkewX(theta_x));
Ok(())
}))
},
"skewy" => {
try!(input.parse_nested_block(|input| {
let theta_y = try!(specified::Angle::parse_with_unitless(context, input));
result.push(SpecifiedOperation::SkewY(theta_y));
Ok(())
}))
},
"perspective" => {
try!(input.parse_nested_block(|input| {
let d = try!(specified::Length::parse_non_negative(context, input));
result.push(SpecifiedOperation::Perspective(d));
Ok(())
}))
},
_ => return Err(())
}
}
if !result.is_empty() {
Ok(SpecifiedValue(result))
} else {
Err(())
}
}
/// Parses `transform` property.
#[inline]
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue,()> {
parse_internal(context, input, false)
}
/// Parses `-moz-transform` property. This prefixed property also accepts LengthOrPercentage
/// in the nondiagonal homogeneous components of matrix and matrix3d.
#[inline]
pub fn parse_prefixed(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue,()> {
parse_internal(context, input, true)
}
impl ToComputedValue for SpecifiedValue {
type ComputedValue = computed_value::T;
#[inline]
fn to_computed_value(&self, context: &Context) -> computed_value::T {
use self::SpecifiedOperation::*;
if self.0.is_empty() {
return computed_value::T(None)
}
let mut result = vec!();
for operation in &self.0 {
match *operation {
Matrix { a, b, c, d, e, f } => {
let mut comp = computed_value::ComputedMatrix::identity();
comp.m11 = a.to_computed_value(context);
comp.m12 = b.to_computed_value(context);
comp.m21 = c.to_computed_value(context);
comp.m22 = d.to_computed_value(context);
comp.m41 = e.to_computed_value(context);
comp.m42 = f.to_computed_value(context);
result.push(computed_value::ComputedOperation::Matrix(comp));
}
PrefixedMatrix { a, b, c, d, ref e, ref f } => {
let mut comp = computed_value::ComputedMatrixWithPercents::identity();
comp.m11 = a.to_computed_value(context);
comp.m12 = b.to_computed_value(context);
comp.m21 = c.to_computed_value(context);
comp.m22 = d.to_computed_value(context);
comp.m41 = lopon_to_lop(&e.to_computed_value(context));
comp.m42 = lopon_to_lop(&f.to_computed_value(context));
result.push(computed_value::ComputedOperation::MatrixWithPercents(comp));
}
Matrix3D {
m11, m12, m13, m14,
m21, m22, m23, m24,
m31, m32, m33, m34,
ref m41, ref m42, ref m43, m44 } => {
let comp = computed_value::ComputedMatrix {
m11: m11.to_computed_value(context),
m12: m12.to_computed_value(context),
m13: m13.to_computed_value(context),
m14: m14.to_computed_value(context),
m21: m21.to_computed_value(context),
m22: m22.to_computed_value(context),
m23: m23.to_computed_value(context),
m24: m24.to_computed_value(context),
m31: m31.to_computed_value(context),
m32: m32.to_computed_value(context),
m33: m33.to_computed_value(context),
m34: m34.to_computed_value(context),
m41: m41.to_computed_value(context),
m42: m42.to_computed_value(context),
m43: m43.to_computed_value(context),
m44: m44.to_computed_value(context),
};
result.push(computed_value::ComputedOperation::Matrix(comp));
}
PrefixedMatrix3D {
m11, m12, m13, m14,
m21, m22, m23, m24,
m31, m32, m33, m34,
ref m41, ref m42, ref m43, m44 } => {
let comp = computed_value::ComputedMatrixWithPercents {
m11: m11.to_computed_value(context),
m12: m12.to_computed_value(context),
m13: m13.to_computed_value(context),
m14: m14.to_computed_value(context),
m21: m21.to_computed_value(context),
m22: m22.to_computed_value(context),
m23: m23.to_computed_value(context),
m24: m24.to_computed_value(context),
m31: m31.to_computed_value(context),
m32: m32.to_computed_value(context),
m33: m33.to_computed_value(context),
m34: m34.to_computed_value(context),
m41: lopon_to_lop(&m41.to_computed_value(context)),
m42: lopon_to_lop(&m42.to_computed_value(context)),
m43: lon_to_length(&m43.to_computed_value(context)),
m44: m44.to_computed_value(context),
};
result.push(computed_value::ComputedOperation::MatrixWithPercents(comp));
}
Translate(ref tx, None) => {
let tx = tx.to_computed_value(context);
result.push(computed_value::ComputedOperation::Translate(
tx,
computed::length::LengthOrPercentage::zero(),
computed::length::Length::new(0)));
}
Translate(ref tx, Some(ref ty)) => {
let tx = tx.to_computed_value(context);
let ty = ty.to_computed_value(context);
result.push(computed_value::ComputedOperation::Translate(
tx,
ty,
computed::length::Length::new(0)));
}
TranslateX(ref tx) => {
let tx = tx.to_computed_value(context);
result.push(computed_value::ComputedOperation::Translate(
tx,
computed::length::LengthOrPercentage::zero(),
computed::length::Length::new(0)));
}
TranslateY(ref ty) => {
let ty = ty.to_computed_value(context);
result.push(computed_value::ComputedOperation::Translate(
computed::length::LengthOrPercentage::zero(),
ty,
computed::length::Length::new(0)));
}
TranslateZ(ref tz) => {
let tz = tz.to_computed_value(context);
result.push(computed_value::ComputedOperation::Translate(
computed::length::LengthOrPercentage::zero(),
computed::length::LengthOrPercentage::zero(),
tz));
}
Translate3D(ref tx, ref ty, ref tz) => {
let tx = tx.to_computed_value(context);
let ty = ty.to_computed_value(context);
let tz = tz.to_computed_value(context);
result.push(computed_value::ComputedOperation::Translate(tx, ty, tz));
}
Scale(factor, None) => {
let factor = factor.to_computed_value(context);
result.push(computed_value::ComputedOperation::Scale(factor, factor, 1.0));
}
Scale(sx, Some(sy)) => {
let sx = sx.to_computed_value(context);
let sy = sy.to_computed_value(context);
result.push(computed_value::ComputedOperation::Scale(sx, sy, 1.0));
}
ScaleX(sx) => {
let sx = sx.to_computed_value(context);
result.push(computed_value::ComputedOperation::Scale(sx, 1.0, 1.0));
}
ScaleY(sy) => {
let sy = sy.to_computed_value(context);
result.push(computed_value::ComputedOperation::Scale(1.0, sy, 1.0));
}
ScaleZ(sz) => {
let sz = sz.to_computed_value(context);
result.push(computed_value::ComputedOperation::Scale(1.0, 1.0, sz));
}
Scale3D(sx, sy, sz) => {
let sx = sx.to_computed_value(context);
let sy = sy.to_computed_value(context);
let sz = sz.to_computed_value(context);
result.push(computed_value::ComputedOperation::Scale(sx, sy, sz));
}
Rotate(theta) => {
let theta = theta.to_computed_value(context);
result.push(computed_value::ComputedOperation::Rotate(0.0, 0.0, 1.0, theta));
}
RotateX(theta) => {
let theta = theta.to_computed_value(context);
result.push(computed_value::ComputedOperation::Rotate(1.0, 0.0, 0.0, theta));
}
RotateY(theta) => {
let theta = theta.to_computed_value(context);
result.push(computed_value::ComputedOperation::Rotate(0.0, 1.0, 0.0, theta));
}
RotateZ(theta) => {
let theta = theta.to_computed_value(context);
result.push(computed_value::ComputedOperation::Rotate(0.0, 0.0, 1.0, theta));
}
Rotate3D(ax, ay, az, theta) => {
let ax = ax.to_computed_value(context);
let ay = ay.to_computed_value(context);
let az = az.to_computed_value(context);
let theta = theta.to_computed_value(context);
let len = (ax * ax + ay * ay + az * az).sqrt();
result.push(computed_value::ComputedOperation::Rotate(ax / len, ay / len, az / len, theta));
}
Skew(theta_x, None) => {
let theta_x = theta_x.to_computed_value(context);
result.push(computed_value::ComputedOperation::Skew(theta_x, computed::Angle::zero()));
}
Skew(theta_x, Some(theta_y)) => {
let theta_x = theta_x.to_computed_value(context);
let theta_y = theta_y.to_computed_value(context);
result.push(computed_value::ComputedOperation::Skew(theta_x, theta_y));
}
SkewX(theta_x) => {
let theta_x = theta_x.to_computed_value(context);
result.push(computed_value::ComputedOperation::Skew(theta_x, computed::Angle::zero()));
}
SkewY(theta_y) => {
let theta_y = theta_y.to_computed_value(context);
result.push(computed_value::ComputedOperation::Skew(computed::Angle::zero(), theta_y));
}
Perspective(ref d) => {
result.push(computed_value::ComputedOperation::Perspective(d.to_computed_value(context)));
}
InterpolateMatrix { ref from_list, ref to_list, progress } => {
result.push(computed_value::ComputedOperation::InterpolateMatrix {
from_list: from_list.to_computed_value(context),
to_list: to_list.to_computed_value(context),
progress: progress
});
}
AccumulateMatrix { ref from_list, ref to_list, count } => {
result.push(computed_value::ComputedOperation::AccumulateMatrix {
from_list: from_list.to_computed_value(context),
to_list: to_list.to_computed_value(context),
count: count.value()
});
}
};
}
computed_value::T(Some(result))
}
#[inline]
fn from_computed_value(computed: &computed_value::T) -> Self {
SpecifiedValue(computed.0.as_ref().map(|computed| {
let mut result = vec![];
for operation in computed {
match *operation {
computed_value::ComputedOperation::Matrix(ref computed) => {
result.push(SpecifiedOperation::Matrix3D {
m11: Number::from_computed_value(&computed.m11),
m12: Number::from_computed_value(&computed.m12),
m13: Number::from_computed_value(&computed.m13),
m14: Number::from_computed_value(&computed.m14),
m21: Number::from_computed_value(&computed.m21),
m22: Number::from_computed_value(&computed.m22),
m23: Number::from_computed_value(&computed.m23),
m24: Number::from_computed_value(&computed.m24),
m31: Number::from_computed_value(&computed.m31),
m32: Number::from_computed_value(&computed.m32),
m33: Number::from_computed_value(&computed.m33),
m34: Number::from_computed_value(&computed.m34),
m41: Number::from_computed_value(&computed.m41),
m42: Number::from_computed_value(&computed.m42),
m43: Number::from_computed_value(&computed.m43),
m44: Number::from_computed_value(&computed.m44),
});
}
computed_value::ComputedOperation::MatrixWithPercents(ref computed) => {
result.push(SpecifiedOperation::PrefixedMatrix3D {
m11: Number::from_computed_value(&computed.m11),
m12: Number::from_computed_value(&computed.m12),
m13: Number::from_computed_value(&computed.m13),
m14: Number::from_computed_value(&computed.m14),
m21: Number::from_computed_value(&computed.m21),
m22: Number::from_computed_value(&computed.m22),
m23: Number::from_computed_value(&computed.m23),
m24: Number::from_computed_value(&computed.m24),
m31: Number::from_computed_value(&computed.m31),
m32: Number::from_computed_value(&computed.m32),
m33: Number::from_computed_value(&computed.m33),
m34: Number::from_computed_value(&computed.m34),
m41: Either::Second(LengthOrPercentage::from_computed_value(&computed.m41)),
m42: Either::Second(LengthOrPercentage::from_computed_value(&computed.m42)),
m43: LengthOrNumber::from_computed_value(&Either::First(computed.m43)),
m44: Number::from_computed_value(&computed.m44),
});
}
computed_value::ComputedOperation::Translate(ref tx, ref ty, ref tz) => {
// XXXManishearth we lose information here; perhaps we should try to
// recover the original function? Not sure if this can be observed.
result.push(SpecifiedOperation::Translate3D(
ToComputedValue::from_computed_value(tx),
ToComputedValue::from_computed_value(ty),
ToComputedValue::from_computed_value(tz)));
}
computed_value::ComputedOperation::Scale(ref sx, ref sy, ref sz) => {
result.push(SpecifiedOperation::Scale3D(
Number::from_computed_value(sx),
Number::from_computed_value(sy),
Number::from_computed_value(sz)));
}
computed_value::ComputedOperation::Rotate(ref ax, ref ay, ref az, ref theta) => {
result.push(SpecifiedOperation::Rotate3D(
Number::from_computed_value(ax),
Number::from_computed_value(ay),
Number::from_computed_value(az),
specified::Angle::from_computed_value(theta)));
}
computed_value::ComputedOperation::Skew(ref theta_x, ref theta_y) => {
result.push(SpecifiedOperation::Skew(
specified::Angle::from_computed_value(theta_x),
Some(specified::Angle::from_computed_value(theta_y))))
}
computed_value::ComputedOperation::Perspective(ref d) => {
result.push(SpecifiedOperation::Perspective(
ToComputedValue::from_computed_value(d)
));
}
computed_value::ComputedOperation::InterpolateMatrix { ref from_list,
ref to_list,
progress } => {
result.push(SpecifiedOperation::InterpolateMatrix {
from_list: SpecifiedValue::from_computed_value(from_list),
to_list: SpecifiedValue::from_computed_value(to_list),
progress: progress
});
}
computed_value::ComputedOperation::AccumulateMatrix { ref from_list,
ref to_list,
count } => {
result.push(SpecifiedOperation::AccumulateMatrix {
from_list: SpecifiedValue::from_computed_value(from_list),
to_list: SpecifiedValue::from_computed_value(to_list),
count: Integer::new(count)
});
}
};
}
result
}).unwrap_or(Vec::new()))
}
}
// Converts computed LengthOrPercentageOrNumber into computed
// LengthOrPercentage. Number maps into Length
fn lopon_to_lop(value: &ComputedLoPoNumber) -> ComputedLoP {
match *value {
Either::First(number) => ComputedLoP::Length(Au::from_f32_px(number)),
Either::Second(length_or_percentage) => length_or_percentage,
}
}
// Converts computed LengthOrNumber into computed Length.
// Number maps into Length.
fn lon_to_length(value: &ComputedLoN) -> ComputedLength {
match *value {
Either::First(length) => length,
Either::Second(number) => Au::from_f32_px(number),
}
}
</%helpers:longhand>
// CSSOM View Module
// https://www.w3.org/TR/cssom-view-1/
${helpers.single_keyword("scroll-behavior",
"auto smooth",
products="gecko",
spec="https://drafts.csswg.org/cssom-view/#propdef-scroll-behavior",
animation_value_type="discrete")}
${helpers.single_keyword("scroll-snap-type-x",
"none mandatory proximity",
products="gecko",
gecko_constant_prefix="NS_STYLE_SCROLL_SNAP_TYPE",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-type-x)",
animation_value_type="discrete")}
<%helpers:longhand products="gecko" name="scroll-snap-type-y" animation_value_type="none"
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-type-x)">
pub use super::scroll_snap_type_x::SpecifiedValue;
pub use super::scroll_snap_type_x::computed_value;
pub use super::scroll_snap_type_x::get_initial_value;
pub use super::scroll_snap_type_x::parse;
</%helpers:longhand>
// Compositing and Blending Level 1
// http://www.w3.org/TR/compositing-1/
${helpers.single_keyword("isolation",
"auto isolate",
products="gecko",
spec="https://drafts.fxtf.org/compositing/#isolation",
flags="CREATES_STACKING_CONTEXT",
animation_value_type="discrete")}
// TODO add support for logical values recto and verso
${helpers.single_keyword("page-break-after",
"auto always avoid left right",
products="gecko",
spec="https://drafts.csswg.org/css2/page.html#propdef-page-break-after",
animation_value_type="discrete")}
${helpers.single_keyword("page-break-before",
"auto always avoid left right",
products="gecko",
spec="https://drafts.csswg.org/css2/page.html#propdef-page-break-before",
animation_value_type="discrete")}
${helpers.single_keyword("page-break-inside",
"auto avoid",
products="gecko",
gecko_ffi_name="mBreakInside",
gecko_constant_prefix="NS_STYLE_PAGE_BREAK",
spec="https://drafts.csswg.org/css2/page.html#propdef-page-break-inside",
animation_value_type="discrete")}
// CSS Basic User Interface Module Level 3
// http://dev.w3.org/csswg/css-ui
// FIXME support logical values `block` and `inline` (https://drafts.csswg.org/css-logical-props/#resize)
${helpers.single_keyword("resize",
"none both horizontal vertical",
products="gecko",
spec="https://drafts.csswg.org/css-ui/#propdef-resize",
animation_value_type="discrete")}
${helpers.predefined_type("perspective",
"LengthOrNone",
"Either::Second(None_)",
"parse_non_negative_length",
gecko_ffi_name="mChildPerspective",
spec="https://drafts.csswg.org/css-transforms/#perspective",
extra_prefixes="moz webkit",
flags="CREATES_STACKING_CONTEXT FIXPOS_CB",
animation_value_type="ComputedValue")}
${helpers.predefined_type("perspective-origin",
"position::Position",
"computed::position::Position::center()",
boxed="True",
extra_prefixes="moz webkit",
spec="https://drafts.csswg.org/css-transforms-2/#perspective-origin-property",
animation_value_type="ComputedValue")}
${helpers.single_keyword("backface-visibility",
"visible hidden",
spec="https://drafts.csswg.org/css-transforms/#backface-visibility-property",
extra_prefixes="moz webkit",
animation_value_type="discrete")}
${helpers.single_keyword("transform-box",
"border-box fill-box view-box",
gecko_enum_prefix="StyleGeometryBox",
products="gecko",
spec="https://drafts.csswg.org/css-transforms/#transform-box",
gecko_inexhaustive="True",
animation_value_type="discrete")}
// `auto` keyword is not supported in gecko yet.
${helpers.single_keyword("transform-style",
"auto flat preserve-3d" if product == "servo" else
"flat preserve-3d",
spec="https://drafts.csswg.org/css-transforms/#transform-style-property",
extra_prefixes="moz webkit",
flags="CREATES_STACKING_CONTEXT FIXPOS_CB",
animation_value_type="discrete")}
${helpers.predefined_type("transform-origin",
"TransformOrigin",
"computed::TransformOrigin::initial_value()",
animation_value_type="ComputedValue",
extra_prefixes="moz webkit",
boxed=True,
spec="https://drafts.csswg.org/css-transforms/#transform-origin-property")}
// FIXME: `size` and `content` values are not implemented and `strict` is implemented
// like `content`(layout style paint) in gecko. We should implement `size` and `content`,
// also update the glue once they are implemented in gecko.
<%helpers:longhand name="contain" animation_value_type="none" products="gecko" need_clone="True"
flags="FIXPOS_CB"
spec="https://drafts.csswg.org/css-contain/#contain-property">
use std::fmt;
use style_traits::ToCss;
use values::computed::ComputedValueAsSpecified;
impl ComputedValueAsSpecified for SpecifiedValue {}
no_viewport_percentage!(SpecifiedValue);
pub mod computed_value {
pub type T = super::SpecifiedValue;
}
bitflags! {
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub flags SpecifiedValue: u8 {
const LAYOUT = 0x01,
const STYLE = 0x02,
const PAINT = 0x04,
const STRICT = 0x8,
const STRICT_BITS = LAYOUT.bits | STYLE.bits | PAINT.bits,
}
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
if self.is_empty() {
return dest.write_str("none")
}
if self.contains(STRICT) {
return dest.write_str("strict")
}
let mut has_any = false;
macro_rules! maybe_write_value {
($ident:ident => $str:expr) => {
if self.contains($ident) {
if has_any {
try!(dest.write_str(" "));
}
has_any = true;
try!(dest.write_str($str));
}
}
}
maybe_write_value!(LAYOUT => "layout");
maybe_write_value!(STYLE => "style");
maybe_write_value!(PAINT => "paint");
debug_assert!(has_any);
Ok(())
}
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T::empty()
}
/// none | strict | content | [ size || layout || style || paint ]
pub fn parse(_context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
let mut result = SpecifiedValue::empty();
if input.try(|input| input.expect_ident_matching("none")).is_ok() {
return Ok(result)
}
if input.try(|input| input.expect_ident_matching("strict")).is_ok() {
result.insert(STRICT | STRICT_BITS);
return Ok(result)
}
while let Ok(name) = input.try(|input| input.expect_ident()) {
let flag = match_ignore_ascii_case! { &name,
"layout" => LAYOUT,
"style" => STYLE,
"paint" => PAINT,
_ => return Err(())
};
if result.contains(flag) {
return Err(())
}
result.insert(flag);
}
if !result.is_empty() {
Ok(result)
} else {
Err(())
}
}
</%helpers:longhand>
// Non-standard
${helpers.single_keyword("-moz-appearance",
"""none button button-arrow-down button-arrow-next button-arrow-previous button-arrow-up
button-bevel button-focus caret checkbox checkbox-container checkbox-label checkmenuitem
dialog dualbutton groupbox listbox listitem menuarrow menubar menucheckbox menuimage
menuitem menuitemtext menulist menulist-button menulist-text menulist-textfield menupopup
menuradio menuseparator meterbar meterchunk number-input progressbar progressbar-vertical
progresschunk progresschunk-vertical radio radio-container radio-label radiomenuitem range
range-thumb resizer resizerpanel scale-horizontal scalethumbend scalethumb-horizontal
scalethumbstart scalethumbtick scalethumb-vertical scale-vertical scrollbar
scrollbar-horizontal scrollbar-small scrollbar-vertical scrollbarbutton-down
scrollbarbutton-left scrollbarbutton-right scrollbarbutton-up scrollbarthumb-horizontal
scrollbarthumb-vertical scrollbartrack-horizontal scrollbartrack-vertical searchfield
separator spinner spinner-downbutton spinner-textfield spinner-upbutton splitter statusbar
statusbarpanel tab tabpanel tabpanels tab-scroll-arrow-back tab-scroll-arrow-forward
textfield textfield-multiline toolbar toolbarbutton toolbarbutton-dropdown toolbargripper
toolbox tooltip treeheader treeheadercell treeheadersortarrow treeitem treeline treetwisty
treetwistyopen treeview window
-moz-gtk-info-bar -moz-mac-active-source-list-selection -moz-mac-disclosure-button-closed
-moz-mac-disclosure-button-open -moz-mac-fullscreen-button -moz-mac-help-button
-moz-mac-source-list -moz-mac-source-list-selection -moz-mac-vibrancy-dark
-moz-mac-vibrancy-light -moz-win-borderless-glass -moz-win-browsertabbar-toolbox
-moz-win-communications-toolbox -moz-win-exclude-glass -moz-win-glass -moz-win-media-toolbox
-moz-window-button-box -moz-window-button-box-maximized -moz-window-button-close
-moz-window-button-maximize -moz-window-button-minimize -moz-window-button-restore
-moz-window-frame-bottom -moz-window-frame-left -moz-window-frame-right -moz-window-titlebar
-moz-window-titlebar-maximized
""",
gecko_ffi_name="mAppearance",
gecko_constant_prefix="ThemeWidgetType_NS_THEME",
products="gecko",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-appearance)",
animation_value_type="none")}
${helpers.predefined_type("-moz-binding", "UrlOrNone", "Either::Second(None_)",
products="gecko",
boxed="True" if product == "gecko" else "False",
animation_value_type="none",
gecko_ffi_name="mBinding",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-binding)",
disable_when_testing="True")}
${helpers.single_keyword("-moz-orient",
"inline block horizontal vertical",
products="gecko",
gecko_ffi_name="mOrient",
gecko_enum_prefix="StyleOrient",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-orient)",
gecko_inexhaustive="True",
animation_value_type="discrete")}
<%helpers:longhand name="will-change" products="gecko" animation_value_type="none"
spec="https://drafts.csswg.org/css-will-change/#will-change">
use cssparser::serialize_identifier;
use std::fmt;
use style_traits::ToCss;
use values::computed::ComputedValueAsSpecified;
impl ComputedValueAsSpecified for SpecifiedValue {}
no_viewport_percentage!(SpecifiedValue);
pub mod computed_value {
pub use super::SpecifiedValue as T;
}
#[derive(Debug, Clone, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum SpecifiedValue {
Auto,
AnimateableFeatures(Vec<Atom>),
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
SpecifiedValue::Auto => dest.write_str("auto"),
SpecifiedValue::AnimateableFeatures(ref features) => {
let (first, rest) = features.split_first().unwrap();
// handle head element
serialize_identifier(&*first.to_string(), dest)?;
// handle tail, precede each with a delimiter
for feature in rest {
dest.write_str(", ")?;
serialize_identifier(&*feature.to_string(), dest)?;
}
Ok(())
}
}
}
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T::Auto
}
/// auto | <animateable-feature>#
pub fn parse(_context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
if input.try(|input| input.expect_ident_matching("auto")).is_ok() {
Ok(computed_value::T::Auto)
} else {
input.parse_comma_separated(|i| {
let ident = i.expect_ident()?;
match_ignore_ascii_case! { &ident,
"will-change" | "none" | "all" | "auto" |
"initial" | "inherit" | "unset" | "default" => return Err(()),
_ => {},
}
Ok((Atom::from(ident)))
}).map(SpecifiedValue::AnimateableFeatures)
}
}
</%helpers:longhand>
${helpers.predefined_type("shape-outside", "basic_shape::FloatAreaShape",
"generics::basic_shape::ShapeSource::None",
products="gecko", boxed="True",
animation_value_type="none",
spec="https://drafts.csswg.org/css-shapes/#shape-outside-property")}
<%helpers:longhand name="touch-action"
products="gecko"
animation_value_type="discrete"
disable_when_testing="True"
spec="https://compat.spec.whatwg.org/#touch-action">
use gecko_bindings::structs;
use std::fmt;
use style_traits::ToCss;
use values::computed::ComputedValueAsSpecified;
impl ComputedValueAsSpecified for SpecifiedValue {}
no_viewport_percentage!(SpecifiedValue);
pub mod computed_value {
pub use super::SpecifiedValue as T;
}
bitflags! {
/// These constants match Gecko's `NS_STYLE_TOUCH_ACTION_*` constants.
pub flags SpecifiedValue: u8 {
const TOUCH_ACTION_NONE = structs::NS_STYLE_TOUCH_ACTION_NONE as u8,
const TOUCH_ACTION_AUTO = structs::NS_STYLE_TOUCH_ACTION_AUTO as u8,
const TOUCH_ACTION_PAN_X = structs::NS_STYLE_TOUCH_ACTION_PAN_X as u8,
const TOUCH_ACTION_PAN_Y = structs::NS_STYLE_TOUCH_ACTION_PAN_Y as u8,
const TOUCH_ACTION_MANIPULATION = structs::NS_STYLE_TOUCH_ACTION_MANIPULATION as u8,
}
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
TOUCH_ACTION_NONE => dest.write_str("none"),
TOUCH_ACTION_AUTO => dest.write_str("auto"),
TOUCH_ACTION_MANIPULATION => dest.write_str("manipulation"),
_ if self.contains(TOUCH_ACTION_PAN_X | TOUCH_ACTION_PAN_Y) => {
dest.write_str("pan-x pan-y")
},
_ if self.contains(TOUCH_ACTION_PAN_X) => {
dest.write_str("pan-x")
},
_ if self.contains(TOUCH_ACTION_PAN_Y) => {
dest.write_str("pan-y")
},
_ => panic!("invalid touch-action value"),
}
}
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
TOUCH_ACTION_AUTO
}
pub fn parse(_context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
let ident = input.expect_ident()?;
match_ignore_ascii_case! { &ident,
"auto" => Ok(TOUCH_ACTION_AUTO),
"none" => Ok(TOUCH_ACTION_NONE),
"manipulation" => Ok(TOUCH_ACTION_MANIPULATION),
"pan-x" => {
if input.try(|i| i.expect_ident_matching("pan-y")).is_ok() {
Ok(TOUCH_ACTION_PAN_X | TOUCH_ACTION_PAN_Y)
} else {
Ok(TOUCH_ACTION_PAN_X)
}
},
"pan-y" => {
if input.try(|i| i.expect_ident_matching("pan-x")).is_ok() {
Ok(TOUCH_ACTION_PAN_X | TOUCH_ACTION_PAN_Y)
} else {
Ok(TOUCH_ACTION_PAN_Y)
}
},
_ => Err(()),
}
}
#[cfg(feature = "gecko")]
impl_bitflags_conversions!(SpecifiedValue);
</%helpers:longhand>
Reference in a new issue View git blame Copy permalink