/
gecko.mako.rs
2250 lines (1979 loc) · 95.8 KB
/
gecko.mako.rs
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/* 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/. */
// `data` comes from components/style/properties.mako.rs; see build.rs for more details.
<%!
from data import to_rust_ident
from data import Keyword
%>
use app_units::Au;
use custom_properties::ComputedValuesMap;
% for style_struct in data.style_structs:
use gecko_bindings::structs::${style_struct.gecko_ffi_name};
use gecko_bindings::bindings::Gecko_Construct_${style_struct.gecko_ffi_name};
use gecko_bindings::bindings::Gecko_CopyConstruct_${style_struct.gecko_ffi_name};
use gecko_bindings::bindings::Gecko_Destroy_${style_struct.gecko_ffi_name};
% endfor
use gecko_bindings::bindings::Gecko_CopyFontFamilyFrom;
use gecko_bindings::bindings::Gecko_CopyImageValueFrom;
use gecko_bindings::bindings::Gecko_CopyListStyleImageFrom;
use gecko_bindings::bindings::Gecko_CopyListStyleTypeFrom;
use gecko_bindings::bindings::Gecko_CopyMozBindingFrom;
use gecko_bindings::bindings::Gecko_EnsureImageLayersLength;
use gecko_bindings::bindings::Gecko_FontFamilyList_AppendGeneric;
use gecko_bindings::bindings::Gecko_FontFamilyList_AppendNamed;
use gecko_bindings::bindings::Gecko_FontFamilyList_Clear;
use gecko_bindings::bindings::Gecko_SetListStyleImage;
use gecko_bindings::bindings::Gecko_SetListStyleImageNone;
use gecko_bindings::bindings::Gecko_SetListStyleType;
use gecko_bindings::bindings::Gecko_SetMozBinding;
use gecko_bindings::bindings::Gecko_SetNullImageValue;
use gecko_bindings::bindings::ServoComputedValuesBorrowedOrNull;
use gecko_bindings::bindings::{Gecko_ResetFilters, Gecko_CopyFiltersFrom};
use gecko_bindings::structs;
use gecko_bindings::sugar::ns_style_coord::{CoordDataValue, CoordData, CoordDataMut};
use gecko_bindings::sugar::ownership::HasArcFFI;
use gecko::values::convert_nscolor_to_rgba;
use gecko::values::convert_rgba_to_nscolor;
use gecko::values::GeckoStyleCoordConvertible;
use gecko::values::round_border_to_device_pixels;
use gecko::values::StyleCoordHelpers;
use logical_geometry::WritingMode;
use properties::CascadePropertyFn;
use properties::longhands;
use std::fmt::{self, Debug};
use std::mem::{transmute, zeroed};
use std::ptr;
use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize, Ordering};
use std::sync::Arc;
use std::cmp;
pub mod style_structs {
% for style_struct in data.style_structs:
pub use super::${style_struct.gecko_struct_name} as ${style_struct.name};
% endfor
}
#[derive(Clone, Debug)]
pub struct ComputedValues {
% for style_struct in data.style_structs:
${style_struct.ident}: Arc<style_structs::${style_struct.name}>,
% endfor
custom_properties: Option<Arc<ComputedValuesMap>>,
shareable: bool,
pub writing_mode: WritingMode,
pub root_font_size: Au,
}
impl ComputedValues {
pub fn inherit_from(parent: &Arc<Self>) -> Arc<Self> {
Arc::new(ComputedValues {
custom_properties: parent.custom_properties.clone(),
shareable: parent.shareable,
writing_mode: parent.writing_mode,
root_font_size: parent.root_font_size,
% for style_struct in data.style_structs:
% if style_struct.inherited:
${style_struct.ident}: parent.${style_struct.ident}.clone(),
% else:
${style_struct.ident}: Self::initial_values().${style_struct.ident}.clone(),
% endif
% endfor
})
}
pub fn new(custom_properties: Option<Arc<ComputedValuesMap>>,
shareable: bool,
writing_mode: WritingMode,
root_font_size: Au,
% for style_struct in data.style_structs:
${style_struct.ident}: Arc<style_structs::${style_struct.name}>,
% endfor
) -> Self {
ComputedValues {
custom_properties: custom_properties,
shareable: shareable,
writing_mode: writing_mode,
root_font_size: root_font_size,
% for style_struct in data.style_structs:
${style_struct.ident}: ${style_struct.ident},
% endfor
}
}
pub fn style_for_child_text_node(parent: &Arc<Self>) -> Arc<Self> {
// Gecko expects text nodes to be styled as if they were elements that
// matched no rules (that is, inherited style structs are inherited and
// non-inherited style structs are set to their initial values).
ComputedValues::inherit_from(parent)
}
pub fn initial_values() -> &'static Self {
unsafe {
debug_assert!(!raw_initial_values().is_null());
&*raw_initial_values()
}
}
pub unsafe fn initialize() {
debug_assert!(raw_initial_values().is_null());
set_raw_initial_values(Box::into_raw(Box::new(ComputedValues {
% for style_struct in data.style_structs:
${style_struct.ident}: style_structs::${style_struct.name}::initial(),
% endfor
custom_properties: None,
shareable: true,
writing_mode: WritingMode::empty(),
root_font_size: longhands::font_size::get_initial_value(),
})));
}
pub unsafe fn shutdown() {
debug_assert!(!raw_initial_values().is_null());
let _ = Box::from_raw(raw_initial_values());
set_raw_initial_values(ptr::null_mut());
}
#[inline]
pub fn do_cascade_property<F: FnOnce(&[CascadePropertyFn])>(f: F) {
f(&CASCADE_PROPERTY)
}
% for style_struct in data.style_structs:
#[inline]
pub fn clone_${style_struct.name_lower}(&self) -> Arc<style_structs::${style_struct.name}> {
self.${style_struct.ident}.clone()
}
#[inline]
pub fn get_${style_struct.name_lower}(&self) -> &style_structs::${style_struct.name} {
&self.${style_struct.ident}
}
#[inline]
pub fn mutate_${style_struct.name_lower}(&mut self) -> &mut style_structs::${style_struct.name} {
Arc::make_mut(&mut self.${style_struct.ident})
}
% endfor
pub fn custom_properties(&self) -> Option<Arc<ComputedValuesMap>> {
self.custom_properties.as_ref().map(|x| x.clone())
}
pub fn root_font_size(&self) -> Au { self.root_font_size }
pub fn set_root_font_size(&mut self, s: Au) { self.root_font_size = s; }
pub fn set_writing_mode(&mut self, mode: WritingMode) { self.writing_mode = mode; }
// FIXME(bholley): Implement this properly.
#[inline]
pub fn is_multicol(&self) -> bool { false }
}
<%def name="declare_style_struct(style_struct)">
pub struct ${style_struct.gecko_struct_name} {
gecko: ${style_struct.gecko_ffi_name},
}
</%def>
<%def name="impl_simple_setter(ident, gecko_ffi_name)">
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
${set_gecko_property(gecko_ffi_name, "v")}
}
</%def>
<%def name="impl_simple_clone(ident, gecko_ffi_name)">
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
self.gecko.${gecko_ffi_name}
}
</%def>
<%def name="impl_simple_copy(ident, gecko_ffi_name, *kwargs)">
#[allow(non_snake_case)]
pub fn copy_${ident}_from(&mut self, other: &Self) {
self.gecko.${gecko_ffi_name} = other.gecko.${gecko_ffi_name};
}
</%def>
<%def name="impl_coord_copy(ident, gecko_ffi_name)">
#[allow(non_snake_case)]
pub fn copy_${ident}_from(&mut self, other: &Self) {
self.gecko.${gecko_ffi_name}.copy_from(&other.gecko.${gecko_ffi_name});
}
</%def>
<%!
def get_gecko_property(ffi_name, self_param = "self"):
if "mBorderColor" in ffi_name:
return ffi_name.replace("mBorderColor",
"unsafe { *%s.gecko.__bindgen_anon_1.mBorderColor.as_ref() }"
% self_param)
return "%s.gecko.%s" % (self_param, ffi_name)
def set_gecko_property(ffi_name, expr):
if ffi_name == "__LIST_STYLE_TYPE__":
return "unsafe { Gecko_SetListStyleType(&mut self.gecko, %s as u32); }" % expr
if "mBorderColor" in ffi_name:
ffi_name = ffi_name.replace("mBorderColor",
"*self.gecko.__bindgen_anon_1.mBorderColor.as_mut()")
return "unsafe { %s = %s };" % (ffi_name, expr)
return "self.gecko.%s = %s;" % (ffi_name, expr)
%>
<%def name="impl_keyword_setter(ident, gecko_ffi_name, keyword, cast_type='u8')">
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
use properties::longhands::${ident}::computed_value::T as Keyword;
// FIXME(bholley): Align binary representations and ditch |match| for cast + static_asserts
let result = match v {
% for value in keyword.values_for('gecko'):
Keyword::${to_rust_ident(value)} =>
structs::${keyword.gecko_constant(value)} ${keyword.maybe_cast(cast_type)},
% endfor
};
${set_gecko_property(gecko_ffi_name, "result")}
}
</%def>
<%def name="impl_keyword_clone(ident, gecko_ffi_name, keyword)">
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
use properties::longhands::${ident}::computed_value::T as Keyword;
// FIXME(bholley): Align binary representations and ditch |match| for cast + static_asserts
match ${get_gecko_property(gecko_ffi_name)} ${keyword.maybe_cast("u32")} {
% for value in keyword.values_for('gecko'):
structs::${keyword.gecko_constant(value)} => Keyword::${to_rust_ident(value)},
% endfor
x => panic!("Found unexpected value in style struct for ${ident} property: {:?}", x),
}
}
</%def>
<%def name="impl_color_setter(ident, gecko_ffi_name, complex_color=True)">
#[allow(unreachable_code)]
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
% if complex_color:
let result = v.into();
% else:
use cssparser::Color;
let result = match v {
Color::RGBA(rgba) => convert_rgba_to_nscolor(&rgba),
// FIXME #13547
Color::CurrentColor => 0,
};
% endif
${set_gecko_property(gecko_ffi_name, "result")}
}
</%def>
<%def name="impl_color_copy(ident, gecko_ffi_name, complex_color=True)">
#[allow(non_snake_case)]
pub fn copy_${ident}_from(&mut self, other: &Self) {
let color = ${get_gecko_property(gecko_ffi_name, self_param = "other")};
${set_gecko_property(gecko_ffi_name, "color")};
}
</%def>
<%def name="impl_color_clone(ident, gecko_ffi_name, complex_color=True)">
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
% if complex_color:
${get_gecko_property(gecko_ffi_name)}.into()
% else:
use cssparser::Color;
Color::RGBA(convert_nscolor_to_rgba(${get_gecko_property(gecko_ffi_name)}))
% endif
}
</%def>
<%def name="impl_keyword(ident, gecko_ffi_name, keyword, need_clone, **kwargs)">
<%call expr="impl_keyword_setter(ident, gecko_ffi_name, keyword, **kwargs)"></%call>
<%call expr="impl_simple_copy(ident, gecko_ffi_name)"></%call>
%if need_clone:
<%call expr="impl_keyword_clone(ident, gecko_ffi_name, keyword)"></%call>
% endif
</%def>
<%def name="impl_simple(ident, gecko_ffi_name, need_clone=False)">
<%call expr="impl_simple_setter(ident, gecko_ffi_name)"></%call>
<%call expr="impl_simple_copy(ident, gecko_ffi_name)"></%call>
% if need_clone:
<%call expr="impl_simple_clone(ident, gecko_ffi_name)"></%call>
% endif
</%def>
<%def name="impl_color(ident, gecko_ffi_name, need_clone=False, complex_color=True)">
<%call expr="impl_color_setter(ident, gecko_ffi_name, complex_color)"></%call>
<%call expr="impl_color_copy(ident, gecko_ffi_name, complex_color)"></%call>
% if need_clone:
<%call expr="impl_color_clone(ident, gecko_ffi_name, complex_color)"></%call>
% endif
</%def>
<%def name="impl_app_units(ident, gecko_ffi_name, need_clone, round_to_pixels=False)">
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
% if round_to_pixels:
let au_per_device_px = Au(self.gecko.mTwipsPerPixel);
self.gecko.${gecko_ffi_name} = round_border_to_device_pixels(v, au_per_device_px).0;
% else:
self.gecko.${gecko_ffi_name} = v.0;
% endif
}
<%call expr="impl_simple_copy(ident, gecko_ffi_name)"></%call>
%if need_clone:
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
Au(self.gecko.${gecko_ffi_name})
}
% endif
</%def>
<%def name="impl_split_style_coord(ident, gecko_ffi_name, index, need_clone=False)">
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
v.to_gecko_style_coord(&mut self.gecko.${gecko_ffi_name}.data_at_mut(${index}));
}
#[allow(non_snake_case)]
pub fn copy_${ident}_from(&mut self, other: &Self) {
self.gecko.${gecko_ffi_name}.data_at_mut(${index}).copy_from(&other.gecko.${gecko_ffi_name}.data_at(${index}));
}
% if need_clone:
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
use properties::longhands::${ident}::computed_value::T;
T::from_gecko_style_coord(&self.gecko.${gecko_ffi_name}.data_at(${index}))
.expect("clone for ${ident} failed")
}
% endif
</%def>
<%def name="impl_style_coord(ident, gecko_ffi_name, need_clone=False)">
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
v.to_gecko_style_coord(&mut self.gecko.${gecko_ffi_name});
}
#[allow(non_snake_case)]
pub fn copy_${ident}_from(&mut self, other: &Self) {
self.gecko.${gecko_ffi_name}.copy_from(&other.gecko.${gecko_ffi_name});
}
% if need_clone:
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
use properties::longhands::${ident}::computed_value::T;
T::from_gecko_style_coord(&self.gecko.${gecko_ffi_name})
.expect("clone for ${ident} failed")
}
% endif
</%def>
<%def name="impl_corner_style_coord(ident, gecko_ffi_name, x_index, y_index, need_clone=False)">
#[allow(non_snake_case)]
pub fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
v.0.width.to_gecko_style_coord(&mut self.gecko.${gecko_ffi_name}.data_at_mut(${x_index}));
v.0.height.to_gecko_style_coord(&mut self.gecko.${gecko_ffi_name}.data_at_mut(${y_index}));
}
#[allow(non_snake_case)]
pub fn copy_${ident}_from(&mut self, other: &Self) {
self.gecko.${gecko_ffi_name}.data_at_mut(${x_index})
.copy_from(&other.gecko.${gecko_ffi_name}.data_at(${x_index}));
self.gecko.${gecko_ffi_name}.data_at_mut(${y_index})
.copy_from(&other.gecko.${gecko_ffi_name}.data_at(${y_index}));
}
% if need_clone:
#[allow(non_snake_case)]
pub fn clone_${ident}(&self) -> longhands::${ident}::computed_value::T {
use properties::longhands::${ident}::computed_value::T;
use euclid::Size2D;
let width = GeckoStyleCoordConvertible::from_gecko_style_coord(
&self.gecko.${gecko_ffi_name}.data_at(${x_index}))
.expect("Failed to clone ${ident}");
let height = GeckoStyleCoordConvertible::from_gecko_style_coord(
&self.gecko.${gecko_ffi_name}.data_at(${y_index}))
.expect("Failed to clone ${ident}");
T(Size2D::new(width, height))
}
% endif
</%def>
<%def name="impl_style_struct(style_struct)">
impl ${style_struct.gecko_struct_name} {
#[allow(dead_code, unused_variables)]
pub fn initial() -> Arc<Self> {
let mut result = Arc::new(${style_struct.gecko_struct_name} { gecko: unsafe { zeroed() } });
unsafe {
Gecko_Construct_${style_struct.gecko_ffi_name}(&mut Arc::get_mut(&mut result).unwrap().gecko);
}
result
}
pub fn get_gecko(&self) -> &${style_struct.gecko_ffi_name} {
&self.gecko
}
}
impl Drop for ${style_struct.gecko_struct_name} {
fn drop(&mut self) {
unsafe {
Gecko_Destroy_${style_struct.gecko_ffi_name}(&mut self.gecko);
}
}
}
impl Clone for ${style_struct.gecko_struct_name} {
fn clone(&self) -> Self {
unsafe {
let mut result = ${style_struct.gecko_struct_name} { gecko: zeroed() };
Gecko_CopyConstruct_${style_struct.gecko_ffi_name}(&mut result.gecko, &self.gecko);
result
}
}
}
// FIXME(bholley): Make bindgen generate Debug for all types.
%if style_struct.gecko_ffi_name in ("nsStyle" + x for x in "Border Display List Background Font SVGReset".split()):
impl Debug for ${style_struct.gecko_struct_name} {
// FIXME(bholley): Generate this.
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Gecko style struct: ${style_struct.gecko_struct_name}")
}
}
%else:
impl Debug for ${style_struct.gecko_struct_name} {
// FIXME(bholley): Generate this.
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { self.gecko.fmt(f) }
}
%endif
</%def>
<%def name="raw_impl_trait(style_struct, skip_longhands='', skip_additionals='')">
<%
longhands = [x for x in style_struct.longhands
if not (skip_longhands == "*" or x.name in skip_longhands.split())]
#
# Make a list of types we can't auto-generate.
#
force_stub = [];
# These are currently being shuffled to a different style struct on the gecko side.
force_stub += ["backface-visibility", "transform-box", "transform-style"]
# These live in an nsFont member in Gecko. Should be straightforward to do manually.
force_stub += ["font-variant"]
# These have unusual representations in gecko.
force_stub += ["list-style-type"]
# In a nsTArray, have to be done manually, but probably not too much work
# (the "filling them", not the "making them work")
force_stub += ["animation-name", "animation-duration",
"animation-timing-function", "animation-iteration-count",
"animation-direction", "animation-play-state",
"animation-fill-mode", "animation-delay"]
# These are part of shorthands so we must include them in stylo builds,
# but we haven't implemented the stylo glue for the longhand
# so we generate a stub
force_stub += ["flex-basis", # position
# transition
"transition-duration", "transition-timing-function",
"transition-property", "transition-delay",
]
# Types used with predefined_type()-defined properties that we can auto-generate.
predefined_types = {
"Length": impl_style_coord,
"LengthOrPercentage": impl_style_coord,
"LengthOrPercentageOrAuto": impl_style_coord,
"LengthOrPercentageOrNone": impl_style_coord,
"Number": impl_simple,
"Opacity": impl_simple,
"CSSColor": impl_color,
}
def longhand_method(longhand):
args = dict(ident=longhand.ident, gecko_ffi_name=longhand.gecko_ffi_name,
need_clone=longhand.need_clone)
# get the method and pass additional keyword or type-specific arguments
if longhand.keyword:
method = impl_keyword
args.update(keyword=longhand.keyword)
if "font" in longhand.ident:
args.update(cast_type=longhand.cast_type)
else:
method = predefined_types[longhand.predefined_type]
if longhand.predefined_type in ["CSSColor"]:
args.update(complex_color=longhand.complex_color)
method(**args)
picked_longhands, stub_longhands = [], []
for x in longhands:
if (x.keyword or x.predefined_type in predefined_types) and x.name not in force_stub:
picked_longhands.append(x)
else:
stub_longhands.append(x)
# If one of the longhands is not handled
# by either:
# - being a keyword
# - being a predefined longhand
# - being a longhand with manual glue code (i.e. in skip_longhands)
# - being generated as a stub
#
# then we raise an error here.
#
# If you hit this error, please add `product="servo"` to the longhand.
# In case the longhand is used in a shorthand, add it to the force_stub
# list above.
for stub in stub_longhands:
if stub.name not in force_stub:
raise Exception("Don't know what to do with longhand %s in style struct %s"
% (stub.name,style_struct. gecko_struct_name))
%>
impl ${style_struct.gecko_struct_name} {
/*
* Manually-Implemented Methods.
*/
${caller.body().strip()}
/*
* Auto-Generated Methods.
*/
<%
for longhand in picked_longhands:
longhand_method(longhand)
%>
/*
* Stubs.
*/
% for longhand in stub_longhands:
#[allow(non_snake_case)]
pub fn set_${longhand.ident}(&mut self, _: longhands::${longhand.ident}::computed_value::T) {
if cfg!(debug_assertions) {
println!("stylo: Unimplemented property setter: ${longhand.name}");
}
}
#[allow(non_snake_case)]
pub fn copy_${longhand.ident}_from(&mut self, _: &Self) {
if cfg!(debug_assertions) {
println!("stylo: Unimplemented property setter: ${longhand.name}");
}
}
% if longhand.need_clone:
#[allow(non_snake_case)]
pub fn clone_${longhand.ident}(&self) -> longhands::${longhand.ident}::computed_value::T {
unimplemented!()
}
% endif
% if longhand.need_index:
pub fn ${longhand.ident}_count(&self) -> usize { 0 }
pub fn ${longhand.ident}_at(&self, _index: usize)
-> longhands::${longhand.ident}::computed_value::SingleComputedValue {
unimplemented!()
}
% endif
% endfor
<% additionals = [x for x in style_struct.additional_methods
if skip_additionals != "*" and not x.name in skip_additionals.split()] %>
% for additional in additionals:
${additional.stub()}
% endfor
}
</%def>
<% data.manual_style_structs = [] %>
<%def name="impl_trait(style_struct_name, skip_longhands='', skip_additionals='')">
<%self:raw_impl_trait style_struct="${next(x for x in data.style_structs if x.name == style_struct_name)}"
skip_longhands="${skip_longhands}" skip_additionals="${skip_additionals}">
${caller.body()}
</%self:raw_impl_trait>
<% data.manual_style_structs.append(style_struct_name) %>
</%def>
<%!
class Side(object):
def __init__(self, name, index):
self.name = name
self.ident = name.lower()
self.index = index
class Corner(object):
def __init__(self, name, index):
self.x_name = "NS_CORNER_" + name + "_X"
self.y_name = "NS_CORNER_" + name + "_Y"
self.ident = name.lower()
self.x_index = 2 * index
self.y_index = 2 * index + 1
SIDES = [Side("Top", 0), Side("Right", 1), Side("Bottom", 2), Side("Left", 3)]
CORNERS = [Corner("TOP_LEFT", 0), Corner("TOP_RIGHT", 1), Corner("BOTTOM_RIGHT", 2), Corner("BOTTOM_LEFT", 3)]
%>
#[allow(dead_code)]
fn static_assert() {
unsafe {
% for corner in CORNERS:
transmute::<_, [u32; ${corner.x_index}]>([1; structs::${corner.x_name} as usize]);
transmute::<_, [u32; ${corner.y_index}]>([1; structs::${corner.y_name} as usize]);
% endfor
}
// Note: using the above technique with an enum hits a rust bug when |structs| is in a different crate.
% for side in SIDES:
{ const DETAIL: u32 = [0][(structs::Side::eSide${side.name} as usize != ${side.index}) as usize]; let _ = DETAIL; }
% endfor
}
<% border_style_keyword = Keyword("border-style",
"none solid double dotted dashed hidden groove ridge inset outset") %>
<% skip_border_longhands = " ".join(["border-{0}-{1}".format(x.ident, y)
for x in SIDES
for y in ["color", "style", "width"]] +
["border-{0}-radius".format(x.ident.replace("_", "-"))
for x in CORNERS]) %>
<%self:impl_trait style_struct_name="Border"
skip_longhands="${skip_border_longhands} border-image-source border-image-outset
border-image-repeat border-image-width border-image-slice"
skip_additionals="*">
% for side in SIDES:
<% impl_keyword("border_%s_style" % side.ident, "mBorderStyle[%s]" % side.index, border_style_keyword,
need_clone=True) %>
<% impl_color("border_%s_color" % side.ident, "(mBorderColor)[%s]" % side.index, need_clone=True) %>
<% impl_app_units("border_%s_width" % side.ident, "mComputedBorder.%s" % side.ident, need_clone=True,
round_to_pixels=True) %>
pub fn border_${side.ident}_has_nonzero_width(&self) -> bool {
self.gecko.mComputedBorder.${side.ident} != 0
}
% endfor
% for corner in CORNERS:
<% impl_corner_style_coord("border_%s_radius" % corner.ident,
"mBorderRadius",
corner.x_index,
corner.y_index,
need_clone=True) %>
% endfor
pub fn set_border_image_source(&mut self, v: longhands::border_image_source::computed_value::T) {
unsafe {
// Prevent leaking of the last elements we did set
Gecko_SetNullImageValue(&mut self.gecko.mBorderImageSource);
}
if let Some(image) = v.0 {
// TODO: We need to make border-image-source match with background-image
// until then we are setting with_url to false
self.gecko.mBorderImageSource.set(image, false, &mut false)
}
}
pub fn copy_border_image_source_from(&mut self, other: &Self) {
unsafe {
Gecko_CopyImageValueFrom(&mut self.gecko.mBorderImageSource,
&other.gecko.mBorderImageSource);
}
}
pub fn set_border_image_outset(&mut self, v: longhands::border_image_outset::computed_value::T) {
% for side in SIDES:
v.${side.index}.to_gecko_style_coord(&mut self.gecko.mBorderImageOutset
.data_at_mut(${side.index}));
% endfor
}
pub fn copy_border_image_outset_from(&mut self, other: &Self) {
% for side in SIDES:
self.gecko.mBorderImageOutset.data_at_mut(${side.index})
.copy_from(&other.gecko.mBorderImageOutset.data_at(${side.index}));
% endfor
}
pub fn set_border_image_repeat(&mut self, v: longhands::border_image_repeat::computed_value::T) {
use properties::longhands::border_image_repeat::computed_value::RepeatKeyword;
use gecko_bindings::structs::{NS_STYLE_BORDER_IMAGE_REPEAT_STRETCH, NS_STYLE_BORDER_IMAGE_REPEAT_REPEAT};
use gecko_bindings::structs::{NS_STYLE_BORDER_IMAGE_REPEAT_ROUND, NS_STYLE_BORDER_IMAGE_REPEAT_SPACE};
% for i, side in enumerate(["H", "V"]):
let k = match v.${i} {
RepeatKeyword::Stretch => NS_STYLE_BORDER_IMAGE_REPEAT_STRETCH,
RepeatKeyword::Repeat => NS_STYLE_BORDER_IMAGE_REPEAT_REPEAT,
RepeatKeyword::Round => NS_STYLE_BORDER_IMAGE_REPEAT_ROUND,
RepeatKeyword::Space => NS_STYLE_BORDER_IMAGE_REPEAT_SPACE,
};
self.gecko.mBorderImageRepeat${side} = k as u8;
% endfor
}
pub fn copy_border_image_repeat_from(&mut self, other: &Self) {
self.gecko.mBorderImageRepeatH = other.gecko.mBorderImageRepeatH;
self.gecko.mBorderImageRepeatV = other.gecko.mBorderImageRepeatV;
}
pub fn set_border_image_width(&mut self, v: longhands::border_image_width::computed_value::T) {
use properties::longhands::border_image_width::computed_value::SingleComputedValue;
% for side in SIDES:
match v.${side.index} {
SingleComputedValue::Auto => {
self.gecko.mBorderImageWidth.data_at_mut(${side.index}).set_value(CoordDataValue::Auto)
},
SingleComputedValue::LengthOrPercentage(l) => {
l.to_gecko_style_coord(&mut self.gecko.mBorderImageWidth.data_at_mut(${side.index}))
},
SingleComputedValue::Number(n) => {
self.gecko.mBorderImageWidth.data_at_mut(${side.index}).set_value(CoordDataValue::Factor(n))
},
}
% endfor
}
pub fn copy_border_image_width_from(&mut self, other: &Self) {
% for side in SIDES:
self.gecko.mBorderImageWidth.data_at_mut(${side.index})
.copy_from(&other.gecko.mBorderImageWidth.data_at(${side.index}));
% endfor
}
pub fn set_border_image_slice(&mut self, v: longhands::border_image_slice::computed_value::T) {
use gecko_bindings::structs::{NS_STYLE_BORDER_IMAGE_SLICE_NOFILL, NS_STYLE_BORDER_IMAGE_SLICE_FILL};
use properties::longhands::border_image_slice::computed_value::PercentageOrNumber;
for (i, corner) in v.corners.iter().enumerate() {
match *corner {
PercentageOrNumber::Percentage(p) => {
self.gecko.mBorderImageSlice.data_at_mut(i).set_value(CoordDataValue::Percent(p.0))
},
PercentageOrNumber::Number(n) => {
self.gecko.mBorderImageSlice.data_at_mut(i).set_value(CoordDataValue::Factor(n))
},
}
}
let fill = if v.fill {
NS_STYLE_BORDER_IMAGE_SLICE_FILL
} else {
NS_STYLE_BORDER_IMAGE_SLICE_NOFILL
};
self.gecko.mBorderImageFill = fill as u8;
}
pub fn copy_border_image_slice_from(&mut self, other: &Self) {
for i in 0..4 {
self.gecko.mBorderImageSlice.data_at_mut(i)
.copy_from(&other.gecko.mBorderImageSlice.data_at(i));
}
self.gecko.mBorderImageFill = other.gecko.mBorderImageFill;
}
</%self:impl_trait>
<% skip_margin_longhands = " ".join(["margin-%s" % x.ident for x in SIDES]) %>
<%self:impl_trait style_struct_name="Margin"
skip_longhands="${skip_margin_longhands}">
% for side in SIDES:
<% impl_split_style_coord("margin_%s" % side.ident,
"mMargin",
side.index,
need_clone=True) %>
% endfor
</%self:impl_trait>
<% skip_padding_longhands = " ".join(["padding-%s" % x.ident for x in SIDES]) %>
<%self:impl_trait style_struct_name="Padding"
skip_longhands="${skip_padding_longhands}">
% for side in SIDES:
<% impl_split_style_coord("padding_%s" % side.ident,
"mPadding",
side.index,
need_clone=True) %>
% endfor
</%self:impl_trait>
<% skip_position_longhands = " ".join(x.ident for x in SIDES) %>
<%self:impl_trait style_struct_name="Position"
skip_longhands="${skip_position_longhands} z-index box-sizing">
% for side in SIDES:
<% impl_split_style_coord("%s" % side.ident,
"mOffset",
side.index,
need_clone=True) %>
% endfor
pub fn set_z_index(&mut self, v: longhands::z_index::computed_value::T) {
use properties::longhands::z_index::computed_value::T;
match v {
T::Auto => self.gecko.mZIndex.set_value(CoordDataValue::Auto),
T::Number(n) => self.gecko.mZIndex.set_value(CoordDataValue::Integer(n)),
}
}
pub fn copy_z_index_from(&mut self, other: &Self) {
use gecko_bindings::structs::nsStyleUnit;
// z-index is never a calc(). If it were, we'd be leaking here, so
// assert that it isn't.
debug_assert!(self.gecko.mZIndex.unit() != nsStyleUnit::eStyleUnit_Calc);
unsafe {
self.gecko.mZIndex.copy_from_unchecked(&other.gecko.mZIndex);
}
}
pub fn clone_z_index(&self) -> longhands::z_index::computed_value::T {
use properties::longhands::z_index::computed_value::T;
return match self.gecko.mZIndex.as_value() {
CoordDataValue::Auto => T::Auto,
CoordDataValue::Integer(n) => T::Number(n),
_ => {
debug_assert!(false);
T::Number(0)
}
}
}
pub fn set_box_sizing(&mut self, v: longhands::box_sizing::computed_value::T) {
use computed_values::box_sizing::T;
use gecko_bindings::structs::StyleBoxSizing;
// TODO: guess what to do with box-sizing: padding-box
self.gecko.mBoxSizing = match v {
T::content_box => StyleBoxSizing::Content,
T::border_box => StyleBoxSizing::Border
}
}
${impl_simple_copy('box_sizing', 'mBoxSizing')}
</%self:impl_trait>
<% skip_outline_longhands = " ".join("outline-style outline-width".split() +
["-moz-outline-radius-{0}".format(x.ident.replace("_", ""))
for x in CORNERS]) %>
<%self:impl_trait style_struct_name="Outline"
skip_longhands="${skip_outline_longhands}"
skip_additionals="*">
<% impl_keyword("outline_style", "mOutlineStyle", border_style_keyword, need_clone=True) %>
<% impl_app_units("outline_width", "mActualOutlineWidth", need_clone=True,
round_to_pixels=True) %>
% for corner in CORNERS:
<% impl_corner_style_coord("_moz_outline_radius_%s" % corner.ident.replace("_", ""),
"mOutlineRadius",
corner.x_index,
corner.y_index) %>
% endfor
pub fn outline_has_nonzero_width(&self) -> bool {
self.gecko.mActualOutlineWidth != 0
}
</%self:impl_trait>
<%self:impl_trait style_struct_name="Font"
skip_longhands="font-family font-size font-weight font-synthesis"
skip_additionals="*">
pub fn set_font_family(&mut self, v: longhands::font_family::computed_value::T) {
use properties::longhands::font_family::computed_value::FontFamily;
use gecko_bindings::structs::FontFamilyType;
let list = &mut self.gecko.mFont.fontlist;
unsafe { Gecko_FontFamilyList_Clear(list); }
for family in &v.0 {
match *family {
FontFamily::FamilyName(ref name) => {
unsafe { Gecko_FontFamilyList_AppendNamed(list, name.as_ptr()); }
}
FontFamily::Generic(ref name) => {
let family_type =
if name == &atom!("serif") { FontFamilyType::eFamily_serif }
else if name == &atom!("sans-serif") { FontFamilyType::eFamily_sans_serif }
else if name == &atom!("cursive") { FontFamilyType::eFamily_cursive }
else if name == &atom!("fantasy") { FontFamilyType::eFamily_fantasy }
else if name == &atom!("monospace") { FontFamilyType::eFamily_monospace }
else { panic!("Unknown generic font family") };
unsafe { Gecko_FontFamilyList_AppendGeneric(list, family_type); }
}
}
}
}
pub fn copy_font_family_from(&mut self, other: &Self) {
unsafe { Gecko_CopyFontFamilyFrom(&mut self.gecko.mFont, &other.gecko.mFont); }
}
// FIXME(bholley): Gecko has two different sizes, one of which (mSize) is the
// actual computed size, and the other of which (mFont.size) is the 'display
// size' which takes font zooming into account. We don't handle font zooming yet.
pub fn set_font_size(&mut self, v: longhands::font_size::computed_value::T) {
self.gecko.mFont.size = v.0;
self.gecko.mSize = v.0;
}
pub fn copy_font_size_from(&mut self, other: &Self) {
self.gecko.mFont.size = other.gecko.mFont.size;
self.gecko.mSize = other.gecko.mSize;
}
pub fn clone_font_size(&self) -> longhands::font_size::computed_value::T {
Au(self.gecko.mSize)
}
pub fn set_font_weight(&mut self, v: longhands::font_weight::computed_value::T) {
self.gecko.mFont.weight = v as u16;
}
${impl_simple_copy('font_weight', 'mFont.weight')}
pub fn clone_font_weight(&self) -> longhands::font_weight::computed_value::T {
debug_assert!(self.gecko.mFont.weight >= 100);
debug_assert!(self.gecko.mFont.weight <= 900);
debug_assert!(self.gecko.mFont.weight % 10 == 0);
unsafe { transmute(self.gecko.mFont.weight) }
}
// This is used for PartialEq, which we don't implement for gecko style structs.
pub fn compute_font_hash(&mut self) {}
pub fn set_font_synthesis(&mut self, v: longhands::font_synthesis::computed_value::T) {
use gecko_bindings::structs::{NS_FONT_SYNTHESIS_WEIGHT, NS_FONT_SYNTHESIS_STYLE};
self.gecko.mFont.synthesis = 0;
if v.weight {
self.gecko.mFont.synthesis |= NS_FONT_SYNTHESIS_WEIGHT as u8;
}
if v.style {
self.gecko.mFont.synthesis |= NS_FONT_SYNTHESIS_STYLE as u8;
}
}
pub fn copy_font_synthesis_from(&mut self, other: &Self) {
self.gecko.mFont.synthesis = other.gecko.mFont.synthesis;
}
</%self:impl_trait>
<% skip_box_longhands= """display overflow-y vertical-align
-moz-binding page-break-before page-break-after
scroll-snap-points-x scroll-snap-points-y""" %>
<%self:impl_trait style_struct_name="Box" skip_longhands="${skip_box_longhands}">
// We manually-implement the |display| property until we get general
// infrastructure for preffing certain values.
<% display_keyword = Keyword("display", "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 none " +
"-moz-box -moz-inline-box",
gecko_enum_prefix="StyleDisplay") %>
${impl_keyword('display', 'mDisplay', display_keyword, True)}
// overflow-y is implemented as a newtype of overflow-x, so we need special handling.
// We could generalize this if we run into other newtype keywords.
<% overflow_x = data.longhands_by_name["overflow-x"] %>
pub fn set_overflow_y(&mut self, v: longhands::overflow_y::computed_value::T) {
use properties::longhands::overflow_x::computed_value::T as BaseType;
// FIXME(bholley): Align binary representations and ditch |match| for cast + static_asserts
self.gecko.mOverflowY = match v.0 {
% for value in overflow_x.keyword.values_for('gecko'):
BaseType::${to_rust_ident(value)} => structs::${overflow_x.keyword.gecko_constant(value)} as u8,
% endfor
};
}
${impl_simple_copy('overflow_y', 'mOverflowY')}
pub fn clone_overflow_y(&self) -> longhands::overflow_y::computed_value::T {
use properties::longhands::overflow_x::computed_value::T as BaseType;
use properties::longhands::overflow_y::computed_value::T as NewType;
// FIXME(bholley): Align binary representations and ditch |match| for cast + static_asserts
match self.gecko.mOverflowY as u32 {
% for value in overflow_x.keyword.values_for('gecko'):
structs::${overflow_x.keyword.gecko_constant(value)} => NewType(BaseType::${to_rust_ident(value)}),
% endfor
x => panic!("Found unexpected value in style struct for overflow_y property: {}", x),
}
}