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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 dom::bindings::codegen::Bindings::CSSStyleDeclarationBinding::CSSStyleDeclarationMethods;
use dom::bindings::error::{ErrorResult, Fallible};
use dom::bindings::js::JSRef;
use dom::bindings::utils::{Reflectable, Reflector};
use servo_util::str::DOMString;
use string_cache::atom::Atom;
use std::ascii::AsciiExt;
#[dom_struct]
pub struct CSSStyleDeclaration {
reflector_: Reflector,
}
fn get_longhands_from_shorthand(shorthand: &Atom) -> Vec<Atom> {
match shorthand.as_slice() {
"background" =>
vec!(Atom::from_slice("background-color"), Atom::from_slice("background-position"),
Atom::from_slice("background-attachment"), Atom::from_slice("background-image"),
Atom::from_slice("background-repeat")),
_ => vec!(),
}
}
type Declaration = int;
fn serialize_list(property: String, list: Vec<Declaration>) -> DOMString {
let mut result = property;
result.push_str(": ");
for declaration in list.iter() {
result.push_str(serialize_declaration(declaration).as_slice());
}
result
}
fn serialize_declaration(_declaration: &Declaration) -> DOMString {
"".to_string()
}
fn get_declaration(_property: &Atom) -> Option<Declaration> {
None
}
impl CSSStyleDeclaration {
pub fn new_inherited() -> CSSStyleDeclaration {
CSSStyleDeclaration {
reflector_: Reflector::new()
}
}
}
impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
fn CssText(self) -> DOMString {
"".to_string()
}
fn SetCssText(self, _cssText: DOMString) -> ErrorResult {
Ok(())
}
fn Length(self) -> u32 {
0
}
fn Item(self, _index: u32) -> DOMString {
"".to_string()
}
//http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-getpropertyvalue
fn GetPropertyValue(self, property: DOMString) -> DOMString {
// 1. Let property be property converted to ASCII lowercase.
let property = Atom::from_slice(property.as_slice().to_ascii_lower().as_slice());
// 2. If property is a shorthand property, then follow these substeps:
let longhand_properties = get_longhands_from_shorthand(&property);
if !longhand_properties.is_empty() {
// 1. Let list be a new empty array.
let mut list = vec!();
// 2. For each longhand property longhand that property maps to, in canonical order,
// follow these substeps:
for longhand in longhand_properties.iter() {
// 1. If longhand is a case-sensitive match for a property name of a
// CSS declaration in the declarations, let declaration be that CSS
// declaration, or null otherwise.
let declaration = get_declaration(longhand);
// 2. If declaration is null, return the empty string and terminate these
// steps.
if declaration.is_none() {
return "".to_string();
}
// 3. Append the declaration to list.
list.push(declaration.unwrap());
}
// 3. Return the serialization of list and terminate these steps.
return serialize_list(property.as_slice().to_string(), list);
}
// 3. If property is a case-sensitive match for a property name of a CSS declaration
// in the declarations, return the result of invoking serialize a CSS value of that
// declaration and terminate these steps.
// 4. Return the empty string.
let declaration = get_declaration(&property);
declaration.as_ref().map(|declaration| serialize_declaration(declaration))
.unwrap_or("".to_string())
}
fn GetPropertyPriority(self, _property: DOMString) -> DOMString {
"".to_string()
}
fn SetProperty(self, _property: DOMString, _value: DOMString,
_priority: DOMString) -> ErrorResult {
Ok(())
}
fn SetPropertyValue(self, _property: DOMString, _value: DOMString) -> ErrorResult {
Ok(())
}
fn SetPropertyPriority(self, _property: DOMString, _priority: DOMString) -> ErrorResult {
Ok(())
}
fn RemoveProperty(self, _property: DOMString) -> Fallible<DOMString> {
Ok("".to_string())
}
fn IndexedGetter(self, _index: u32, _found: &mut bool) -> DOMString {
"".to_string()
}
}
impl Reflectable for CSSStyleDeclaration {
fn reflector<'a>(&'a self) -> &'a Reflector {
&self.reflector_
}
}
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