Cargoify servo

components/script/dom/nodelist.rs

@@ -0,0 +1,82 @@
+/* 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::Window;
+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;
+
+#[deriving(Encodable)]
+pub enum NodeListType {
+    Simple(Vec<JS<Node>>),
+    Children(JS<Node>)
+}
+
+#[deriving(Encodable)]
+pub struct NodeList {
+    list_type: NodeListType,
+    reflector_: Reflector,
+}
+
+impl NodeList {
+    pub 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),
+                           &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.deref().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.deref().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_
+    }
+}