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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/. */
use cssparser::RGBA;
use dom::attr::{Attr, AttrValue};
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::HTMLFontElementBinding;
use dom::bindings::codegen::Bindings::HTMLFontElementBinding::HTMLFontElementMethods;
use dom::bindings::conversions::Castable;
use dom::bindings::js::Root;
use dom::document::Document;
use dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
use dom::htmlelement::HTMLElement;
use dom::node::Node;
use dom::virtualmethods::VirtualMethods;
use std::cell::Cell;
use string_cache::Atom;
use style::values::specified;
use util::str::{self, DOMString, parse_legacy_font_size};
#[dom_struct]
pub struct HTMLFontElement {
htmlelement: HTMLElement,
color: Cell<Option<RGBA>>,
face: DOMRefCell<Option<Atom>>,
}
impl HTMLFontElement {
fn new_inherited(localName: DOMString, prefix: Option<DOMString>, document: &Document) -> HTMLFontElement {
HTMLFontElement {
htmlelement: HTMLElement::new_inherited(localName, prefix, document),
color: Cell::new(None),
face: DOMRefCell::new(None),
}
}
#[allow(unrooted_must_root)]
pub fn new(localName: DOMString,
prefix: Option<DOMString>,
document: &Document) -> Root<HTMLFontElement> {
let element = HTMLFontElement::new_inherited(localName, prefix, document);
Node::reflect_node(box element, document, HTMLFontElementBinding::Wrap)
}
}
impl HTMLFontElementMethods for HTMLFontElement {
// https://html.spec.whatwg.org/multipage/#dom-font-color
make_getter!(Color, "color");
// https://html.spec.whatwg.org/multipage/#dom-font-color
make_setter!(SetColor, "color");
// https://html.spec.whatwg.org/multipage/#dom-font-face
make_getter!(Face);
// https://html.spec.whatwg.org/multipage/#dom-font-face
make_atomic_setter!(SetFace, "face");
// https://html.spec.whatwg.org/multipage/#dom-font-size
make_getter!(Size);
// https://html.spec.whatwg.org/multipage/#dom-font-size
fn SetSize(&self, value: DOMString) {
let element = self.upcast::<Element>();
let length = parse_length(&value);
element.set_attribute(&Atom::from_slice("size"), AttrValue::Length(value, length));
}
}
impl VirtualMethods for HTMLFontElement {
fn super_type(&self) -> Option<&VirtualMethods> {
let htmlelement = self.upcast::<HTMLElement>();
Some(htmlelement as &VirtualMethods)
}
fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
self.super_type().unwrap().attribute_mutated(attr, mutation);
match attr.local_name() {
&atom!(color) => {
self.color.set(mutation.new_value(attr).and_then(|value| {
str::parse_legacy_color(&value).ok()
}));
},
&atom!(face) => {
*self.face.borrow_mut() =
mutation.new_value(attr)
.map(|value| value.as_atom().clone())
},
_ => {},
}
}
fn parse_plain_attribute(&self, name: &Atom, value: DOMString) -> AttrValue {
match name {
&atom!("face") => AttrValue::from_atomic(value),
&atom!("size") => {
let length = parse_length(&value);
AttrValue::Length(value, length)
},
_ => self.super_type().unwrap().parse_plain_attribute(name, value),
}
}
}
impl HTMLFontElement {
pub fn get_color(&self) -> Option<RGBA> {
self.color.get()
}
#[allow(unsafe_code)]
pub fn get_face(&self) -> Option<Atom> {
let face = unsafe { self.face.borrow_for_layout() };
match *face {
Some(ref s) => Some(s.clone()),
None => None,
}
}
#[allow(unsafe_code)]
pub fn get_size(&self) -> Option<specified::Length> {
unsafe {
self.upcast::<Element>()
.get_attr_for_layout(&ns!(""), &atom!("size"))
.and_then(AttrValue::as_length)
.cloned()
}
}
}
fn parse_length(value: &str) -> Option<specified::Length> {
parse_legacy_font_size(&value).and_then(|parsed| specified::Length::from_str(&parsed))
}
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