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Remove helpers that correspond to DOM methods

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This commit is contained in:
Anthony Ramine 2015-05-04 12:29:51 +02:00
parent b43a2ed807
commit 06436e9c79
8 changed files with 227 additions and 331 deletions
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2
components/script/dom/document.rs
View file

@ -532,7 +532,7 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
let el = match ElementCast::to_ref(node.r()) {
Some(el) => Temporary::from_rooted(el),
None => {
let parent = node.r().parent_node();
let parent = node.r().GetParentNode();
match parent.and_then(ElementCast::to_temporary) {
Some(parent) => parent,
None => return,

19
components/script/dom/element.rs
View file

@ -1215,11 +1215,13 @@ impl<'a> ElementMethods for JSRef<'a, Element> {
let context_document = document_from_node(self).root();
let context_node: JSRef<Node> = NodeCast::from_ref(self);
// Step 1.
let context_parent = match context_node.parent_node() {
// Step 2.
None => return Ok(()),
Some(parent) => parent.root()
};
let context_parent = match context_node.GetParentNode() {
None => {
// Step 2.
return Ok(());
},
Some(parent) => parent,
}.root();
let parent = match context_parent.r().type_id() {
// Step 3.
@ -1230,11 +1232,10 @@ impl<'a> ElementMethods for JSRef<'a, Element> {
let body_elem = Element::create(QualName::new(ns!(HTML), atom!(body)),
None, context_document.r(),
ElementCreator::ScriptCreated);
let body_node: Temporary<Node> = NodeCast::from_temporary(body_elem);
body_node.root()
NodeCast::from_temporary(body_elem)
},
_ => context_node.parent_node().unwrap().root()
};
_ => context_node.GetParentNode().unwrap()
}.root();
// Step 5.
let frag = try!(parent.r().parse_fragment(value));

2
components/script/dom/htmloptionelement.rs
View file

@ -175,7 +175,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLOptionElement> {
}
let node: JSRef<Node> = NodeCast::from_ref(*self);
if node.parent_node().is_some() {
if node.GetParentNode().is_some() {
node.check_parent_disabled_state_for_option();
} else {
node.check_disabled_attribute();

163
components/script/dom/node.rs
View file

@ -286,7 +286,7 @@ trait PrivateNodeHelpers {
impl<'a> PrivateNodeHelpers for JSRef<'a, Node> {
// https://dom.spec.whatwg.org/#node-is-inserted
fn node_inserted(self) {
assert!(self.parent_node().is_some());
assert!(self.parent_node.get().is_some());
let document = document_from_node(self).root();
let is_in_doc = self.is_in_doc();
@ -295,14 +295,14 @@ impl<'a> PrivateNodeHelpers for JSRef<'a, Node> {
vtable_for(&node.r()).bind_to_tree(is_in_doc);
}
let parent = self.parent_node().root();
let parent = self.parent_node.get().root();
parent.r().map(|parent| vtable_for(&parent).child_inserted(self));
document.r().content_and_heritage_changed(self, NodeDamage::OtherNodeDamage);
}
// https://dom.spec.whatwg.org/#node-is-removed
fn node_removed(self, parent_in_doc: bool) {
assert!(self.parent_node().is_none());
assert!(self.parent_node.get().is_none());
for node in self.traverse_preorder() {
let node = node.root();
vtable_for(&node.r()).unbind_from_tree(parent_in_doc);
@ -318,15 +318,15 @@ impl<'a> PrivateNodeHelpers for JSRef<'a, Node> {
///
/// Fails unless `new_child` is disconnected from the tree.
fn add_child(self, new_child: JSRef<Node>, before: Option<JSRef<Node>>) {
assert!(new_child.parent_node().is_none());
assert!(new_child.prev_sibling().is_none());
assert!(new_child.next_sibling().is_none());
assert!(new_child.parent_node.get().is_none());
assert!(new_child.prev_sibling.get().is_none());
assert!(new_child.next_sibling.get().is_none());
match before {
Some(ref before) => {
assert!(before.parent_node().root().r() == Some(self));
match before.prev_sibling().root() {
assert!(before.parent_node.get().root().r() == Some(self));
match before.prev_sibling.get().root() {
None => {
assert!(Some(*before) == self.first_child().root().r());
assert!(Some(*before) == self.first_child.get().root().r());
self.first_child.set(Some(JS::from_rooted(new_child)));
},
Some(ref prev_sibling) => {
@ -338,10 +338,10 @@ impl<'a> PrivateNodeHelpers for JSRef<'a, Node> {
new_child.next_sibling.set(Some(JS::from_rooted(*before)));
},
None => {
match self.last_child().root() {
match self.last_child.get().root() {
None => self.first_child.set(Some(JS::from_rooted(new_child))),
Some(ref last_child) => {
assert!(last_child.r().next_sibling().is_none());
assert!(last_child.r().next_sibling.get().is_none());
last_child.r().next_sibling.set(Some(JS::from_rooted(new_child)));
new_child.prev_sibling.set(Some(JS::from_rooted(last_child.r())));
}
@ -358,7 +358,7 @@ impl<'a> PrivateNodeHelpers for JSRef<'a, Node> {
///
/// Fails unless `child` is a child of this node.
fn remove_child(self, child: JSRef<Node>) {
assert!(child.parent_node().root().r() == Some(self));
assert!(child.parent_node.get().root().r() == Some(self));
match child.prev_sibling.get().root() {
None => {
@ -430,12 +430,6 @@ pub trait NodeHelpers {
fn len(self) -> u32;
fn index(self) -> u32;
fn parent_node(self) -> Option<Temporary<Node>>;
fn first_child(self) -> Option<Temporary<Node>>;
fn last_child(self) -> Option<Temporary<Node>>;
fn prev_sibling(self) -> Option<Temporary<Node>>;
fn next_sibling(self) -> Option<Temporary<Node>>;
fn owner_doc(self) -> Temporary<Document>;
fn set_owner_doc(self, document: JSRef<Document>);
fn is_in_html_doc(self) -> bool;
@ -585,28 +579,6 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
self.preceding_siblings().count() as u32
}
fn parent_node(self) -> Option<Temporary<Node>> {
self.parent_node.get().map(Temporary::from_rooted)
}
fn first_child(self) -> Option<Temporary<Node>> {
self.first_child.get().map(Temporary::from_rooted)
}
fn last_child(self) -> Option<Temporary<Node>> {
self.last_child.get().map(Temporary::from_rooted)
}
/// Returns the previous sibling of this node. Fails if this node is borrowed mutably.
fn prev_sibling(self) -> Option<Temporary<Node>> {
self.prev_sibling.get().map(Temporary::from_rooted)
}
/// Returns the next sibling of this node. Fails if this node is borrowed mutably.
fn next_sibling(self) -> Option<Temporary<Node>> {
self.next_sibling.get().map(Temporary::from_rooted)
}
#[inline]
fn is_element(self) -> bool {
match self.type_id {
@ -757,12 +729,12 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
// selectors. Maybe we can do something smarter in the future.
if !self.get_has_dirty_siblings() {
let parent =
match self.parent_node() {
match self.parent_node.get() {
None => return,
Some(parent) => parent,
};
}.root();
for sibling in parent.root().r().children() {
for sibling in parent.r().children() {
let sibling = sibling.root();
sibling.r().set_has_dirty_siblings(true);
}
@ -799,20 +771,20 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
fn following_siblings(self) -> NodeSiblingIterator {
NodeSiblingIterator {
current: self.next_sibling(),
current: self.GetNextSibling(),
}
}
fn preceding_siblings(self) -> ReverseSiblingIterator {
ReverseSiblingIterator {
current: self.prev_sibling(),
current: self.GetPreviousSibling(),
}
}
fn is_parent_of(self, child: JSRef<Node>) -> bool {
match child.parent_node() {
Some(ref parent) if parent == &Temporary::from_rooted(self) => true,
_ => false
match child.parent_node.get().root() {
Some(ref parent) => parent.r() == self,
None => false,
}
}
@ -830,7 +802,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
// https://dom.spec.whatwg.org/#dom-childnode-before
fn before(self, nodes: Vec<NodeOrString>) -> ErrorResult {
match self.parent_node().root() {
match self.parent_node.get().root() {
None => {
// Step 1.
Ok(())
@ -848,7 +820,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
// https://dom.spec.whatwg.org/#dom-childnode-after
fn after(self, nodes: Vec<NodeOrString>) -> ErrorResult {
match self.parent_node().root() {
match self.parent_node.get().root() {
None => {
// Step 1.
Ok(())
@ -859,7 +831,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
let node = try!(doc.r().node_from_nodes_and_strings(nodes)).root();
// Step 3.
// FIXME(https://github.com/servo/servo/issues/5720)
let next_sibling = self.next_sibling().root();
let next_sibling = self.next_sibling.get().root();
Node::pre_insert(node.r(), parent_node.r(),
next_sibling.r()).map(|_| ())
},
@ -868,7 +840,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
// https://dom.spec.whatwg.org/#dom-childnode-replacewith
fn replace_with(self, nodes: Vec<NodeOrString>) -> ErrorResult {
match self.parent_node().root() {
match self.parent_node.get().root() {
None => {
// Step 1.
Ok(())
@ -889,7 +861,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
let doc = self.owner_doc().root();
let node = try!(doc.r().node_from_nodes_and_strings(nodes)).root();
// Step 2.
let first_child = self.first_child().root();
let first_child = self.first_child.get().root();
Node::pre_insert(node.r(), self, first_child.r()).map(|_| ())
}
@ -952,7 +924,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
fn ancestors(self) -> AncestorIterator {
AncestorIterator {
current: self.parent_node()
current: self.GetParentNode()
}
}
@ -976,13 +948,13 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
fn children(self) -> NodeSiblingIterator {
NodeSiblingIterator {
current: self.first_child(),
current: self.GetFirstChild(),
}
}
fn rev_children(self) -> ReverseSiblingIterator {
ReverseSiblingIterator {
current: self.last_child(),
current: self.GetLastChild(),
}
}
@ -993,7 +965,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
}
fn remove_self(self) {
match self.parent_node().root() {
match self.parent_node.get().root() {
Some(ref parent) => parent.r().remove_child(self),
None => ()
}
@ -1241,7 +1213,7 @@ impl Iterator for NodeSiblingIterator {
None => return None,
Some(current) => current,
}.root();
self.current = current.r().next_sibling();
self.current = current.r().GetNextSibling();
Some(Temporary::from_rooted(current.r()))
}
}
@ -1258,7 +1230,7 @@ impl Iterator for ReverseSiblingIterator {
None => return None,
Some(current) => current,
}.root();
self.current = current.r().prev_sibling();
self.current = current.r().GetPreviousSibling();
Some(Temporary::from_rooted(current.r()))
}
}
@ -1275,7 +1247,7 @@ impl Iterator for AncestorIterator {
None => return None,
Some(current) => current,
}.root();
self.current = current.r().parent_node();
self.current = current.r().GetParentNode();
Some(Temporary::from_rooted(current.r()))
}
}
@ -1304,7 +1276,7 @@ impl Iterator for TreeIterator {
Some(current) => current,
};
let node = current.root();
if let Some(first_child) = node.r().first_child() {
if let Some(first_child) = node.r().GetFirstChild() {
self.current = Some(first_child);
self.depth += 1;
return Some(current);
@ -1313,7 +1285,7 @@ impl Iterator for TreeIterator {
if self.depth == 0 {
break;
}
if let Some(next_sibling) = ancestor.root().r().next_sibling() {
if let Some(next_sibling) = ancestor.root().r().GetNextSibling() {
self.current = Some(next_sibling);
return Some(current);
}
@ -1392,7 +1364,7 @@ impl Node {
// https://dom.spec.whatwg.org/#concept-node-adopt
pub fn adopt(node: JSRef<Node>, document: JSRef<Document>) {
// Step 1.
match node.parent_node().root() {
match node.parent_node.get().root() {
Some(ref parent) => {
Node::remove(node, parent.r(), SuppressObserver::Unsuppressed);
}
@ -1532,7 +1504,7 @@ impl Node {
// Step 7-8.
let reference_child = match child {
Some(child) if child == node => node.next_sibling(),
Some(child) if child == node => node.GetNextSibling(),
_ => None
}.root();
let reference_child = reference_child.r().or(child);
@ -1670,7 +1642,7 @@ impl Node {
// https://dom.spec.whatwg.org/#concept-node-pre-remove
fn pre_remove(child: JSRef<Node>, parent: JSRef<Node>) -> Fallible<Temporary<Node>> {
// Step 1.
match child.parent_node() {
match child.GetParentNode() {
Some(ref node) if node != &Temporary::from_rooted(parent) => return Err(NotFound),
None => return Err(NotFound),
_ => ()
@ -1685,7 +1657,7 @@ impl Node {
// https://dom.spec.whatwg.org/#concept-node-remove
fn remove(node: JSRef<Node>, parent: JSRef<Node>, suppress_observers: SuppressObserver) {
assert!(node.parent_node().map_or(false, |node_parent| node_parent == Temporary::from_rooted(parent)));
assert!(node.GetParentNode().map_or(false, |node_parent| node_parent == Temporary::from_rooted(parent)));
// Step 1-5: ranges.
// Step 6-7: mutation observers.
@ -1890,13 +1862,7 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
// https://dom.spec.whatwg.org/#dom-node-parentelement
fn GetParentElement(self) -> Option<Temporary<Element>> {
self.parent_node.get()
.and_then(|parent| {
let parent = parent.root();
ElementCast::to_ref(parent.r()).map(|elem| {
Temporary::from_rooted(elem)
})
})
self.GetParentNode().and_then(ElementCast::to_temporary)
}
// https://dom.spec.whatwg.org/#dom-node-haschildnodes
@ -2122,8 +2088,8 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
}
// Step 7-8.
let child_next_sibling = child.next_sibling().root();
let node_next_sibling = node.next_sibling().root();
let child_next_sibling = child.next_sibling.get().root();
let node_next_sibling = node.next_sibling.get().root();
let reference_child = if child_next_sibling.r() == Some(node) {
node_next_sibling.r()
} else {
@ -2431,53 +2397,28 @@ impl<'a> style::node::TNode<'a> for JSRef<'a, Node> {
type Element = JSRef<'a, Element>;
fn parent_node(self) -> Option<JSRef<'a, Node>> {
// FIXME(zwarich): Remove this when UFCS lands and there is a better way
// of disambiguating methods.
fn parent_node<'a, T: NodeHelpers>(this: T) -> Option<Temporary<Node>> {
this.parent_node()
}
parent_node(self).map(|node| node.root().get_unsound_ref_forever())
(*self).parent_node.get()
.map(|node| node.root().get_unsound_ref_forever())
}
fn first_child(self) -> Option<JSRef<'a, Node>> {
// FIXME(zwarich): Remove this when UFCS lands and there is a better way
// of disambiguating methods.
fn first_child<'a, T: NodeHelpers>(this: T) -> Option<Temporary<Node>> {
this.first_child()
}
first_child(self).map(|node| node.root().get_unsound_ref_forever())
(*self).first_child.get()
.map(|node| node.root().get_unsound_ref_forever())
}
fn last_child(self) -> Option<JSRef<'a, Node>> {
// FIXME(zwarich): Remove this when UFCS lands and there is a better way
// of disambiguating methods.
fn last_child<'a, T: NodeHelpers>(this: T) -> Option<Temporary<Node>> {
this.last_child()
}
last_child(self).map(|node| node.root().get_unsound_ref_forever())
(*self).last_child.get()
.map(|node| node.root().get_unsound_ref_forever())
}
fn prev_sibling(self) -> Option<JSRef<'a, Node>> {
// FIXME(zwarich): Remove this when UFCS lands and there is a better way
// of disambiguating methods.
fn prev_sibling<'a, T: NodeHelpers>(this: T) -> Option<Temporary<Node>> {
this.prev_sibling()
}
prev_sibling(self).map(|node| node.root().get_unsound_ref_forever())
(*self).prev_sibling.get()
.map(|node| node.root().get_unsound_ref_forever())
}
fn next_sibling(self) -> Option<JSRef<'a, Node>> {
// FIXME(zwarich): Remove this when UFCS lands and there is a better way
// of disambiguating methods.
fn next_sibling<'a, T: NodeHelpers>(this: T) -> Option<Temporary<Node>> {
this.next_sibling()
}
next_sibling(self).map(|node| node.root().get_unsound_ref_forever())
(*self).next_sibling.get()
.map(|node| node.root().get_unsound_ref_forever())
}
fn is_document(self) -> bool {
@ -2595,7 +2536,7 @@ impl<'a> DisabledStateHelpers for JSRef<'a, Node> {
fn check_parent_disabled_state_for_option(self) {
if self.get_disabled_state() { return; }
if let Some(ref parent) = self.parent_node().root() {
if let Some(ref parent) = self.GetParentNode().root() {
if parent.r().is_htmloptgroupelement() && parent.r().get_disabled_state() {
self.set_disabled_state(true);
self.set_enabled_state(false);

14
components/script/dom/range.rs
View file

@ -133,25 +133,25 @@ impl<'a> RangeMethods for JSRef<'a, Range> {
// https://dom.spec.whatwg.org/#dom-range-setstartbeforenode
fn SetStartBefore(self, node: JSRef<Node>) -> ErrorResult {
let parent = try!(node.parent_node().ok_or(Error::InvalidNodeType)).root();
let parent = try!(node.GetParentNode().ok_or(Error::InvalidNodeType)).root();
self.SetStart(parent.r(), node.index())
}
// https://dom.spec.whatwg.org/#dom-range-setstartafternode
fn SetStartAfter(self, node: JSRef<Node>) -> ErrorResult {
let parent = try!(node.parent_node().ok_or(Error::InvalidNodeType)).root();
let parent = try!(node.GetParentNode().ok_or(Error::InvalidNodeType)).root();
self.SetStart(parent.r(), node.index() + 1)
}
// https://dom.spec.whatwg.org/#dom-range-setendbeforenode
fn SetEndBefore(self, node: JSRef<Node>) -> ErrorResult {
let parent = try!(node.parent_node().ok_or(Error::InvalidNodeType)).root();
let parent = try!(node.GetParentNode().ok_or(Error::InvalidNodeType)).root();
self.SetEnd(parent.r(), node.index())
}
// https://dom.spec.whatwg.org/#dom-range-setendafternode
fn SetEndAfter(self, node: JSRef<Node>) -> ErrorResult {
let parent = try!(node.parent_node().ok_or(Error::InvalidNodeType)).root();
let parent = try!(node.GetParentNode().ok_or(Error::InvalidNodeType)).root();
self.SetEnd(parent.r(), node.index() + 1)
}
@ -259,7 +259,7 @@ impl<'a> RangeMethods for JSRef<'a, Range> {
// Step 1.
return false;
}
let parent = match node.parent_node() {
let parent = match node.GetParentNode() {
Some(parent) => parent,
None => {
// Step 3.
@ -364,7 +364,7 @@ impl RangeInner {
// https://dom.spec.whatwg.org/#dom-range-selectnodenode
fn select_node(&mut self, node: JSRef<Node>) -> ErrorResult {
// Steps 1, 2.
let parent = try!(node.parent_node().ok_or(Error::InvalidNodeType)).root();
let parent = try!(node.GetParentNode().ok_or(Error::InvalidNodeType)).root();
// Step 3.
let index = node.index();
// Step 4.
@ -497,7 +497,7 @@ fn bp_position(a_node: JSRef<Node>, a_offset: u32,
// Step 3-1, 3-2.
let b_ancestors = b_node.inclusive_ancestors();
let ref child = b_ancestors.map(|child| child.root()).find(|child| {
child.r().parent_node().unwrap().root().r() == a_node
child.r().GetParentNode().unwrap().root().r() == a_node
}).unwrap();
// Step 3-3.
if child.r().index() < a_offset {

4
components/script/dom/text.rs
View file

@ -68,11 +68,11 @@ impl<'a> TextMethods for JSRef<'a, Text> {
let owner_doc = node.owner_doc().root();
let new_node = owner_doc.r().CreateTextNode(new_data).root();
// Step 6.
let parent = node.parent_node().root();
let parent = node.GetParentNode().root();
if let Some(ref parent) = parent {
// Step 7.
parent.r().InsertBefore(NodeCast::from_ref(new_node.r()),
node.next_sibling().root().r())
node.GetNextSibling().root().r())
.unwrap();
// TODO: Ranges.
}

352
components/script/dom/treewalker.rs
View file

@ -14,7 +14,7 @@ use dom::bindings::js::{JS, JSRef, MutHeap, OptionalRootable, Rootable};
use dom::bindings::js::Temporary;
use dom::bindings::utils::{Reflector, reflect_dom_object};
use dom::document::{Document, DocumentHelpers};
use dom::node::{Node, NodeHelpers};
use dom::node::Node;
// https://dom.spec.whatwg.org/#interface-treewalker
#[dom_struct]
@ -93,37 +93,175 @@ impl<'a> TreeWalkerMethods for JSRef<'a, TreeWalker> {
// https://dom.spec.whatwg.org/#dom-treewalker-parentnode
fn ParentNode(self) -> Fallible<Option<Temporary<Node>>> {
self.parent_node()
// "1. Let node be the value of the currentNode attribute."
let mut node = self.current_node.get().root().get_unsound_ref_forever();
// "2. While node is not null and is not root, run these substeps:"
while !self.is_root_node(node) {
// "1. Let node be node's parent."
match node.GetParentNode() {
Some(n) => {
node = n.root().get_unsound_ref_forever();
// "2. If node is not null and filtering node returns FILTER_ACCEPT,
// then set the currentNode attribute to node, return node."
match try!(self.accept_node(node)) {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
},
None => break,
}
}
// "3. Return null."
Ok(None)
}
// https://dom.spec.whatwg.org/#dom-treewalker-firstchild
fn FirstChild(self) -> Fallible<Option<Temporary<Node>>> {
self.first_child()
// "The firstChild() method must traverse children of type first."
self.traverse_children(|node| node.GetFirstChild(),
|node| node.GetNextSibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-lastchild
fn LastChild(self) -> Fallible<Option<Temporary<Node>>> {
self.last_child()
// "The lastChild() method must traverse children of type last."
self.traverse_children(|node| node.GetLastChild(),
|node| node.GetPreviousSibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-previoussibling
fn PreviousSibling(self) -> Fallible<Option<Temporary<Node>>> {
self.prev_sibling()
// "The nextSibling() method must traverse siblings of type next."
self.traverse_siblings(|node| node.GetLastChild(),
|node| node.GetPreviousSibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-nextsibling
fn NextSibling(self) -> Fallible<Option<Temporary<Node>>> {
self.next_sibling()
// "The previousSibling() method must traverse siblings of type previous."
self.traverse_siblings(|node| node.GetFirstChild(),
|node| node.GetNextSibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-previousnode
fn PreviousNode(self) -> Fallible<Option<Temporary<Node>>> {
self.prev_node()
// "1. Let node be the value of the currentNode attribute."
let mut node = self.current_node.get().root().get_unsound_ref_forever();
// "2. While node is not root, run these substeps:"
while !self.is_root_node(node) {
// "1. Let sibling be the previous sibling of node."
let mut sibling_op = node.GetPreviousSibling();
// "2. While sibling is not null, run these subsubsteps:"
while sibling_op.is_some() {
// "1. Set node to sibling."
node = sibling_op.unwrap().root().get_unsound_ref_forever();
// "2. Filter node and let result be the return value."
// "3. While result is not FILTER_REJECT and node has a child,
// set node to its last child and then filter node and
// set result to the return value."
// "4. If result is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
loop {
let result = try!(self.accept_node(node));
match result {
NodeFilterConstants::FILTER_REJECT => break,
_ if node.GetFirstChild().is_some() =>
node = node.GetLastChild().unwrap().root()
.get_unsound_ref_forever(),
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => break
}
}
// "5. Set sibling to the previous sibling of node."
sibling_op = node.GetPreviousSibling()
}
// "3. If node is root or node's parent is null, return null."
if self.is_root_node(node) || node.GetParentNode().is_none() {
return Ok(None)
}
// "4. Set node to its parent."
match node.GetParentNode() {
None =>
// This can happen if the user set the current node to somewhere
// outside of the tree rooted at the original root.
return Ok(None),
Some(n) => node = n.root().get_unsound_ref_forever()
}
// "5. Filter node and if the return value is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
match try!(self.accept_node(node)) {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
}
// "6. Return null."
Ok(None)
}
// https://dom.spec.whatwg.org/#dom-treewalker-nextnode
fn NextNode(self) -> Fallible<Option<Temporary<Node>>> {
self.next_node()
// "1. Let node be the value of the currentNode attribute."
let mut node = self.current_node.get().root().get_unsound_ref_forever();
// "2. Let result be FILTER_ACCEPT."
let mut result = NodeFilterConstants::FILTER_ACCEPT;
// "3. Run these substeps:"
loop {
// "1. While result is not FILTER_REJECT and node has a child, run these subsubsteps:"
loop {
match result {
NodeFilterConstants::FILTER_REJECT => break,
_ => {}
}
match node.GetFirstChild() {
None => break,
Some (child) => {
// "1. Set node to its first child."
node = child.root().get_unsound_ref_forever();
// "2. Filter node and set result to the return value."
result = try!(self.accept_node(node));
// "3. If result is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
match result {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
}
}
}
// "2. If a node is following node and is not following root,
// set node to the first such node."
// "Otherwise, return null."
match self.first_following_node_not_following_root(node) {
None => return Ok(None),
Some(n) => {
node = n.root().get_unsound_ref_forever();
// "3. Filter node and set result to the return value."
result = try!(self.accept_node(node));
// "4. If result is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
match result {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
}
}
// "5. Run these substeps again."
}
}
}
@ -209,7 +347,7 @@ impl<'a> PrivateTreeWalkerHelpers for JSRef<'a, TreeWalker> {
},
None => {
// "3. Let parent be node's parent."
match node.parent_node().map(|p| p.root().get_unsound_ref_forever()) {
match node.GetParentNode().map(|p| p.root().get_unsound_ref_forever()) {
// "4. If parent is null, parent is root,
// or parent is currentNode attribute's value,
// return null."
@ -280,7 +418,7 @@ impl<'a> PrivateTreeWalkerHelpers for JSRef<'a, TreeWalker> {
}
}
// "3. Set node to its parent."
match node.parent_node().map(|p| p.root().get_unsound_ref_forever()) {
match node.GetParentNode().map(|p| p.root().get_unsound_ref_forever()) {
// "4. If node is null or is root, return null."
None => return Ok(None),
Some(n) if self.is_root_node(n) => return Ok(None),
@ -302,11 +440,11 @@ impl<'a> PrivateTreeWalkerHelpers for JSRef<'a, TreeWalker> {
-> Option<Temporary<Node>> {
// "An object A is following an object B if A and B are in the same tree
// and A comes after B in tree order."
match node.next_sibling() {
match node.GetNextSibling() {
None => {
let mut candidate = node;
while !self.is_root_node(candidate) && candidate.next_sibling().is_none() {
match candidate.parent_node() {
while !self.is_root_node(candidate) && candidate.GetNextSibling().is_none() {
match candidate.GetParentNode() {
None =>
// This can happen if the user set the current node to somewhere
// outside of the tree rooted at the original root.
@ -317,7 +455,7 @@ impl<'a> PrivateTreeWalkerHelpers for JSRef<'a, TreeWalker> {
if self.is_root_node(candidate) {
None
} else {
candidate.next_sibling()
candidate.GetNextSibling()
}
},
it => it
@ -354,195 +492,11 @@ impl<'a> PrivateTreeWalkerHelpers for JSRef<'a, TreeWalker> {
}
}
pub trait TreeWalkerHelpers {
fn parent_node(self) -> Fallible<Option<Temporary<Node>>>;
fn first_child(self) -> Fallible<Option<Temporary<Node>>>;
fn last_child(self) -> Fallible<Option<Temporary<Node>>>;
fn next_sibling(self) -> Fallible<Option<Temporary<Node>>>;
fn prev_sibling(self) -> Fallible<Option<Temporary<Node>>>;
fn next_node(self) -> Fallible<Option<Temporary<Node>>>;
fn prev_node(self) -> Fallible<Option<Temporary<Node>>>;
}
impl<'a> TreeWalkerHelpers for JSRef<'a, TreeWalker> {
// https://dom.spec.whatwg.org/#dom-treewalker-parentnode
fn parent_node(self) -> Fallible<Option<Temporary<Node>>> {
// "1. Let node be the value of the currentNode attribute."
let mut node = self.current_node.get().root().get_unsound_ref_forever();
// "2. While node is not null and is not root, run these substeps:"
while !self.is_root_node(node) {
// "1. Let node be node's parent."
match node.parent_node() {
Some(n) => {
node = n.root().get_unsound_ref_forever();
// "2. If node is not null and filtering node returns FILTER_ACCEPT,
// then set the currentNode attribute to node, return node."
match try!(self.accept_node(node)) {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
},
None => break,
}
}
// "3. Return null."
Ok(None)
}
// https://dom.spec.whatwg.org/#dom-treewalker-firstchild
fn first_child(self) -> Fallible<Option<Temporary<Node>>> {
// "The firstChild() method must traverse children of type first."
self.traverse_children(|node| node.first_child(),
|node| node.next_sibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-lastchild
fn last_child(self) -> Fallible<Option<Temporary<Node>>> {
// "The lastChild() method must traverse children of type last."
self.traverse_children(|node| node.last_child(),
|node| node.prev_sibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-nextsibling
fn next_sibling(self) -> Fallible<Option<Temporary<Node>>> {
// "The nextSibling() method must traverse siblings of type next."
self.traverse_siblings(|node| node.first_child(),
|node| node.next_sibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-previoussibling
fn prev_sibling(self) -> Fallible<Option<Temporary<Node>>> {
// "The previousSibling() method must traverse siblings of type previous."
self.traverse_siblings(|node| node.last_child(),
|node| node.prev_sibling())
}
// https://dom.spec.whatwg.org/#dom-treewalker-previousnode
fn prev_node(self) -> Fallible<Option<Temporary<Node>>> {
// "1. Let node be the value of the currentNode attribute."
let mut node = self.current_node.get().root().get_unsound_ref_forever();
// "2. While node is not root, run these substeps:"
while !self.is_root_node(node) {
// "1. Let sibling be the previous sibling of node."
let mut sibling_op = node.prev_sibling();
// "2. While sibling is not null, run these subsubsteps:"
while sibling_op.is_some() {
// "1. Set node to sibling."
node = sibling_op.unwrap().root().get_unsound_ref_forever();
// "2. Filter node and let result be the return value."
// "3. While result is not FILTER_REJECT and node has a child,
// set node to its last child and then filter node and
// set result to the return value."
// "4. If result is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
loop {
let result = try!(self.accept_node(node));
match result {
NodeFilterConstants::FILTER_REJECT => break,
_ if node.first_child().is_some() =>
node = node.last_child().unwrap().root().get_unsound_ref_forever(),
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => break
}
}
// "5. Set sibling to the previous sibling of node."
sibling_op = node.prev_sibling()
}
// "3. If node is root or node's parent is null, return null."
if self.is_root_node(node) || node.parent_node() == None {
return Ok(None)
}
// "4. Set node to its parent."
match node.parent_node() {
None =>
// This can happen if the user set the current node to somewhere
// outside of the tree rooted at the original root.
return Ok(None),
Some(n) => node = n.root().get_unsound_ref_forever()
}
// "5. Filter node and if the return value is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
match try!(self.accept_node(node)) {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
}
// "6. Return null."
Ok(None)
}
// https://dom.spec.whatwg.org/#dom-treewalker-nextnode
fn next_node(self) -> Fallible<Option<Temporary<Node>>> {
// "1. Let node be the value of the currentNode attribute."
let mut node = self.current_node.get().root().get_unsound_ref_forever();
// "2. Let result be FILTER_ACCEPT."
let mut result = NodeFilterConstants::FILTER_ACCEPT;
// "3. Run these substeps:"
loop {
// "1. While result is not FILTER_REJECT and node has a child, run these subsubsteps:"
loop {
match result {
NodeFilterConstants::FILTER_REJECT => break,
_ => {}
}
match node.first_child() {
None => break,
Some (child) => {
// "1. Set node to its first child."
node = child.root().get_unsound_ref_forever();
// "2. Filter node and set result to the return value."
result = try!(self.accept_node(node));
// "3. If result is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
match result {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
}
}
}
// "2. If a node is following node and is not following root,
// set node to the first such node."
// "Otherwise, return null."
match self.first_following_node_not_following_root(node) {
None => return Ok(None),
Some(n) => {
node = n.root().get_unsound_ref_forever();
// "3. Filter node and set result to the return value."
result = try!(self.accept_node(node));
// "4. If result is FILTER_ACCEPT, then
// set the currentNode attribute to node and return node."
match result {
NodeFilterConstants::FILTER_ACCEPT => {
self.current_node.set(JS::from_rooted(node));
return Ok(Some(Temporary::from_rooted(node)))
},
_ => {}
}
}
}
// "5. Run these substeps again."
}
}
}
impl<'a> Iterator for JSRef<'a, TreeWalker> {
type Item = JSRef<'a, Node>;
fn next(&mut self) -> Option<JSRef<'a, Node>> {
match self.next_node() {
match self.NextNode() {
Ok(node) => node.map(|n| n.root().get_unsound_ref_forever()),
Err(_) =>
// The Err path happens only when a JavaScript

2
components/script/parse/html.rs
View file

@ -121,7 +121,7 @@ impl<'a> TreeSink for servohtmlparser::Sink {
new_node: NodeOrText<JS<Node>>) -> Result<(), NodeOrText<JS<Node>>> {
// If there is no parent, return the node to the parser.
let sibling: Root<Node> = sibling.root();
let parent = match sibling.r().parent_node() {
let parent = match sibling.r().GetParentNode() {
Some(p) => p.root(),
None => return Err(new_node),
};