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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::NodeListBinding;
use dom::bindings::js::JS;
use dom::bindings::utils::{Reflectable, Reflector, reflect_dom_object};
use dom::node::{Node, NodeHelpers};
use dom::window::Window;
#[deriving(Encodable)]
enum NodeListType {
Simple(~[JS<Node>]),
Children(JS<Node>)
}
#[deriving(Encodable)]
pub struct NodeList {
list_type: NodeListType,
reflector_: Reflector,
window: JS<Window>
}
impl NodeList {
pub fn new_inherited(window: JS<Window>,
list_type: NodeListType) -> NodeList {
NodeList {
list_type: list_type,
reflector_: Reflector::new(),
window: window
}
}
pub fn new(window: JS<Window>,
list_type: NodeListType) -> JS<NodeList> {
reflect_dom_object(~NodeList::new_inherited(window.clone(), list_type),
window.get(), NodeListBinding::Wrap)
}
pub fn new_simple_list(window: &JS<Window>, elements: ~[JS<Node>]) -> JS<NodeList> {
NodeList::new(window.clone(), Simple(elements))
}
pub fn new_child_list(window: &JS<Window>, node: &JS<Node>) -> JS<NodeList> {
NodeList::new(window.clone(), Children(node.clone()))
}
pub fn Length(&self) -> u32 {
match self.list_type {
Simple(ref elems) => elems.len() as u32,
Children(ref node) => node.children().len() as u32
}
}
pub fn Item(&self, index: u32) -> Option<JS<Node>> {
match self.list_type {
_ if index >= self.Length() => None,
Simple(ref elems) => Some(elems[index].clone()),
Children(ref node) => node.children().nth(index as uint)
}
}
pub fn IndexedGetter(&self, index: u32, found: &mut bool) -> Option<JS<Node>> {
let item = self.Item(index);
*found = item.is_some();
item
}
}
impl Reflectable for NodeList {
fn reflector<'a>(&'a self) -> &'a Reflector {
&self.reflector_
}
fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
&mut self.reflector_
}
}
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