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script: Map HTMLCanvasElement width and height attributes.

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Emilio Cobos Álvarez 2017-04-07 16:03:25 +02:00
parent df29d02026
commit 53cad6227e
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4 changed files with 63 additions and 3 deletions
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17
components/style/attr.rs
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@ -332,6 +332,23 @@ impl AttrValue {
panic!("Uint not found");
}
}
/// Return the AttrValue as a dimension computed from its integer
/// representation, assuming that integer representation specifies pixels.
///
/// This corresponds to attribute values returned as `AttrValue::UInt(_)`
/// by `VirtualMethods::parse_plain_attribute()`.
///
/// ## Panics
///
/// Panics if the `AttrValue` is not a `UInt`
pub fn as_uint_px_dimension(&self) -> LengthOrPercentageOrAuto {
if let AttrValue::UInt(_, value) = *self {
LengthOrPercentageOrAuto::Length(Au::from_px(value as i32))
} else {
panic!("Uint not found");
}
}
}
impl ::std::ops::Deref for AttrValue {