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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::NodeListBinding;
use dom::bindings::codegen::Bindings::NodeListBinding::NodeListMethods;
use dom::bindings::global;
use dom::bindings::js::{JS, JSRef, Temporary};
use dom::bindings::utils::{Reflectable, Reflector, reflect_dom_object};
use dom::node::{Node, NodeHelpers};
use dom::window::Window;
#[jstraceable]
#[must_root]
pub enum NodeListType {
Simple(Vec<JS<Node>>),
Children(JS<Node>)
}
#[dom_struct]
pub struct NodeList {
list_type: NodeListType,
reflector_: Reflector,
}
impl NodeList {
fn new_inherited(list_type: NodeListType) -> NodeList {
NodeList {
list_type: list_type,
reflector_: Reflector::new(),
}
}
pub fn new(window: JSRef<Window>,
list_type: NodeListType) -> Temporary<NodeList> {
reflect_dom_object(box NodeList::new_inherited(list_type),
&global::Window(window), NodeListBinding::Wrap)
}
pub fn new_simple_list(window: JSRef<Window>, elements: Vec<JSRef<Node>>) -> Temporary<NodeList> {
NodeList::new(window, Simple(elements.iter().map(|element| JS::from_rooted(*element)).collect()))
}
pub fn new_child_list(window: JSRef<Window>, node: JSRef<Node>) -> Temporary<NodeList> {
NodeList::new(window, Children(JS::from_rooted(node)))
}
}
impl<'a> NodeListMethods for JSRef<'a, NodeList> {
fn Length(self) -> u32 {
match self.list_type {
Simple(ref elems) => elems.len() as u32,
Children(ref node) => {
let node = node.root();
node.children().count() as u32
}
}
}
fn Item(self, index: u32) -> Option<Temporary<Node>> {
match self.list_type {
_ if index >= self.Length() => None,
Simple(ref elems) => Some(Temporary::new(elems[index as uint].clone())),
Children(ref node) => {
let node = node.root();
node.children().nth(index as uint)
.map(|child| Temporary::from_rooted(child))
}
}
}
fn IndexedGetter(self, index: u32, found: &mut bool) -> Option<Temporary<Node>> {
let item = self.Item(index);
*found = item.is_some();
item
}
}
impl Reflectable for NodeList {
fn reflector<'a>(&'a self) -> &'a Reflector {
&self.reflector_
}
}
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