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This commit is contained in:
Manish Goregaokar 2016-08-22 21:06:58 +05:30
parent a98c0fc037
commit 466df01e71
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GPG key ID: 3BBF4D3E2EF79F98
4 changed files with 99 additions and 94 deletions
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13
components/style/properties/helpers/animated_properties.mako.rs
View file

@ -162,16 +162,9 @@ impl<T: RepeatableListInterpolate> Interpolate for Vec<T> {
fn interpolate(&self, other: &Self, time: f64) -> Result<Self, ()> {
use num_integer::lcm;
let len = lcm(self.len(), other.len());
let ret = self.iter().cycle().zip(other.iter().cycle())
.take(len)
.filter_map(|(ref me, ref you)| {
me.interpolate(you, time).ok()
}).collect::<Self>();
if ret.len() == len {
Ok(ret)
} else {
Err(())
}
self.iter().cycle().zip(other.iter().cycle()).take(len).map(|(me, you)| {
me.interpolate(you, time)
}).collect()
}
}
/// https://drafts.csswg.org/css-transitions/#animtype-number

105
components/style/properties/shorthand/background.mako.rs
View file

@ -12,16 +12,15 @@
use properties::longhands::{background_image, background_size, background_origin, background_clip};
pub fn parse_value(context: &ParserContext, input: &mut Parser) -> Result<Longhands, ()> {
% for name in "image position repeat size attachment origin clip".split():
let mut any_${name} = false;
% endfor
let mut background_color = None;
let vec = try!(input.parse_comma_separated(|input| {
% for name in "image position repeat size attachment origin clip".split():
let mut background_${name} = background_${name}::SpecifiedValue(Vec::new());
% endfor
try!(input.parse_comma_separated(|input| {
% for name in "image position repeat size attachment origin clip".split():
let mut ${name} = None;
% endfor
loop {
if let Ok(value) = input.try(|input| background_color::parse(context, input)) {
if background_color.is_none() {
@ -33,71 +32,59 @@
}
}
if position.is_none() {
if let Ok(value) = input.try(|input| background_position::single_value::parse(context, input)) {
if let Ok(value) = input.try(|input| background_position::single_value
::parse(context, input)) {
position = Some(value);
any_position = true;
// Parse background size, if applicable.
size = input.try(|input| {
try!(input.expect_delim('/'));
background_size::single_value::parse(context, input)
}).ok();
if let Some(_) = size {
any_size = true;
}
continue
}
}
% for name in "image repeat attachment origin clip".split():
if ${name}.is_none() {
if let Ok(value) = input.try(|input| background_${name}::single_value::parse(context, input)) {
if let Ok(value) = input.try(|input| background_${name}::single_value
::parse(context, input)) {
${name} = Some(value);
any_${name} = true;
continue
}
}
% endfor
break
}
Ok((image, position, repeat, size, attachment, origin, clip))
}));
if !(any_image || any_position || any_repeat || any_size ||
any_attachment || any_origin || any_clip ||
background_color.is_some()) {
return Err(())
}
% for name in "image position repeat size attachment origin clip".split():
let mut background_${name} = if any_${name} {
Some(background_${name}::SpecifiedValue(Vec::new()))
} else {
None
};
% endfor
for i in vec {
% for i,name in enumerate("image position repeat size attachment origin clip".split()):
if let Some(ref mut buf) = background_${name} {
if let Some(bg_${name}) = i.${i} {
buf.0.push(bg_${name})
} else {
buf.0.push(background_${name}::single_value::get_initial_specified_value())
}
}
let mut any = false;
% for name in "image position repeat size attachment origin clip".split():
any = any || ${name}.is_some();
% endfor
}
any = any || background_color.is_some();
if any {
% for name in "image position repeat size attachment origin clip".split():
if let Some(bg_${name}) = ${name} {
background_${name}.0.push(bg_${name});
} else {
background_${name}.0.push(background_${name}::single_value
::get_initial_specified_value());
}
% endfor
Ok(())
} else {
Err(())
}
}));
Ok(Longhands {
background_color: background_color,
background_image: background_image,
background_position: background_position,
background_repeat: background_repeat,
background_attachment: background_attachment,
background_size: background_size,
background_origin: background_origin,
background_clip: background_clip,
background_image: Some(background_image),
background_position: Some(background_position),
background_repeat: Some(background_repeat),
background_attachment: Some(background_attachment),
background_size: Some(background_size),
background_origin: Some(background_origin),
background_clip: Some(background_clip),
})
}
@ -111,7 +98,6 @@
}
}
use std::cmp;
use std::iter::{once, repeat};
let mut len = 0;
% for name in "image position repeat size attachment origin clip".split():
len = cmp::max(len, extract_value(self.background_${name}).map(|i| i.0.len())
@ -123,15 +109,21 @@
return dest.write_str("")
}
let iter = repeat(None).take(len - 1).chain(once(Some(self.background_color)))
% for name in "image position repeat size attachment origin clip".split():
.zip(extract_value(self.background_${name}).into_iter()
.flat_map(|x| x.0.iter())
.map(Some).chain(repeat(None)))
% endfor
;
let mut first = true;
for (((((((color, image), position), repeat), size), attachment), origin), clip) in iter {
for i in 0..len {
% for name in "image position repeat size attachment origin clip".split():
let ${name} = if let DeclaredValue::Value(ref arr) = *self.background_${name} {
arr.0.get(i % arr.0.len())
} else {
None
};
% endfor
let color = if i == len - 1 {
Some(self.background_color)
} else {
None
};
if first {
first = false;
} else {
@ -144,7 +136,6 @@
},
Some(_) => {
try!(write!(dest, "transparent "));
try!(write!(dest, " "));
}
// Not yet the last one
None => ()