mirror of
https://github.com/servo/servo.git
synced 2025-06-11 01:50:10 +00:00
124 lines
4 KiB
Rust
124 lines
4 KiB
Rust
/* 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::NodeIteratorBinding;
|
|
use dom::bindings::codegen::Bindings::NodeIteratorBinding::NodeIteratorMethods;
|
|
use dom::bindings::codegen::Bindings::NodeFilterBinding::NodeFilter;
|
|
use dom::bindings::error::Fallible;
|
|
use dom::bindings::global::GlobalRef;
|
|
use dom::bindings::js::{JS, JSRef, MutNullableHeap, Temporary, Rootable};
|
|
use dom::bindings::utils::{Reflector, reflect_dom_object};
|
|
use dom::document::{Document, DocumentHelpers};
|
|
use dom::node::{Node};
|
|
|
|
#[dom_struct]
|
|
pub struct NodeIterator {
|
|
reflector_: Reflector,
|
|
root_node: JS<Node>,
|
|
reference_node: MutNullableHeap<JS<Node>>,
|
|
what_to_show: u32,
|
|
filter: Filter
|
|
}
|
|
|
|
impl NodeIterator {
|
|
fn new_inherited(root_node: JSRef<Node>,
|
|
what_to_show: u32,
|
|
filter: Filter) -> NodeIterator {
|
|
NodeIterator {
|
|
reflector_: Reflector::new(),
|
|
root_node: JS::from_rooted(root_node),
|
|
reference_node: MutNullableHeap::new(Some(JS::from_rooted(root_node))),
|
|
what_to_show: what_to_show,
|
|
filter: filter
|
|
}
|
|
}
|
|
|
|
pub fn new_with_filter(document: JSRef<Document>,
|
|
root_node: JSRef<Node>,
|
|
what_to_show: u32,
|
|
filter: Filter) -> Temporary<NodeIterator> {
|
|
let window = document.window().root();
|
|
reflect_dom_object(box NodeIterator::new_inherited(root_node, what_to_show, filter),
|
|
GlobalRef::Window(window.r()),
|
|
NodeIteratorBinding::Wrap)
|
|
}
|
|
|
|
pub fn new(document: JSRef<Document>,
|
|
root_node: JSRef<Node>,
|
|
what_to_show: u32,
|
|
node_filter: Option<NodeFilter>) -> Temporary<NodeIterator> {
|
|
let filter = match node_filter {
|
|
None => Filter::None,
|
|
Some(jsfilter) => Filter::JS(jsfilter)
|
|
};
|
|
NodeIterator::new_with_filter(document, root_node, what_to_show, filter)
|
|
}
|
|
}
|
|
|
|
impl<'a> NodeIteratorMethods for JSRef<'a, NodeIterator> {
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-root
|
|
fn Root(self) -> Temporary<Node> {
|
|
Temporary::from_rooted(self.root_node)
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-whattoshow
|
|
fn WhatToShow(self) -> u32 {
|
|
self.what_to_show
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-filter
|
|
fn GetFilter(self) -> Option<NodeFilter> {
|
|
match self.filter {
|
|
Filter::None => None,
|
|
Filter::JS(nf) => Some(nf),
|
|
Filter::Native(_) => panic!("Cannot convert native node filter to DOM NodeFilter")
|
|
}
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-referencenode
|
|
fn GetReferenceNode(self) -> Option<Temporary<Node>> {
|
|
self.reference_node.get().map(Temporary::from_rooted)
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-previousnode
|
|
fn PreviousNode(self) -> Fallible<Option<Temporary<Node>>> {
|
|
self.prev_node()
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-nextnode
|
|
fn NextNode(self) -> Fallible<Option<Temporary<Node>>> {
|
|
self.next_node()
|
|
}
|
|
}
|
|
|
|
/*
|
|
trait PrivateNodeIteratorHelpers {
|
|
//fn accept_node(self, node: JSRef<Node>) -> Fallible<u16>;
|
|
}
|
|
*/
|
|
pub trait NodeIteratorHelpers {
|
|
fn next_node(self) -> Fallible<Option<Temporary<Node>>>;
|
|
fn prev_node(self) -> Fallible<Option<Temporary<Node>>>;
|
|
}
|
|
|
|
impl<'a> NodeIteratorHelpers for JSRef<'a, NodeIterator> {
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-nextnode
|
|
fn next_node(self) -> Fallible<Option<Temporary<Node>>> {
|
|
Ok(None)
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-nodeiterator-previousnode
|
|
fn prev_node(self) -> Fallible<Option<Temporary<Node>>> {
|
|
Ok(None)
|
|
}
|
|
|
|
}
|
|
|
|
|
|
#[jstraceable]
|
|
pub enum Filter {
|
|
None,
|
|
Native(fn (node: JSRef<Node>) -> u16),
|
|
JS(NodeFilter)
|
|
}
|