1 files changed, 106 insertions, 0 deletions
diff --git a/components/script/dom/characterdata.rs b/components/script/dom/characterdata.rs
new file mode 100644
index 00000000000..ebb17cf6993
--- /dev/null
+++ b/components/script/dom/characterdata.rs
@@ -0,0 +1,106 @@
+/* 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/. */
+
+//! DOM bindings for `CharacterData`.
+
+use dom::bindings::codegen::Bindings::CharacterDataBinding::CharacterDataMethods;
+use dom::bindings::codegen::InheritTypes::{CharacterDataDerived, NodeCast};
+use dom::bindings::error::{Fallible, ErrorResult, IndexSize};
+use dom::bindings::js::JSRef;
+use dom::bindings::trace::Traceable;
+use dom::bindings::utils::{Reflectable, Reflector};
+use dom::document::Document;
+use dom::eventtarget::{EventTarget, NodeTargetTypeId};
+use dom::node::{CommentNodeTypeId, Node, NodeTypeId, TextNodeTypeId, ProcessingInstructionNodeTypeId, NodeHelpers};
+use servo_util::str::DOMString;
+
+use std::cell::RefCell;
+
+#[deriving(Encodable)]
+pub struct CharacterData {
+    pub node: Node,
+    pub data: Traceable<RefCell<DOMString>>,
+}
+
+impl CharacterDataDerived for EventTarget {
+    fn is_characterdata(&self) -> bool {
+        match self.type_id {
+            NodeTargetTypeId(TextNodeTypeId) |
+            NodeTargetTypeId(CommentNodeTypeId) |
+            NodeTargetTypeId(ProcessingInstructionNodeTypeId) => true,
+            _ => false
+        }
+    }
+}
+
+impl CharacterData {
+    pub fn new_inherited(id: NodeTypeId, data: DOMString, document: &JSRef<Document>) -> CharacterData {
+        CharacterData {
+            node: Node::new_inherited(id, document),
+            data: Traceable::new(RefCell::new(data)),
+        }
+    }
+}
+
+impl<'a> CharacterDataMethods for JSRef<'a, CharacterData> {
+    fn Data(&self) -> DOMString {
+        self.data.deref().borrow().clone()
+    }
+
+    fn SetData(&self, arg: DOMString) -> ErrorResult {
+        *self.data.deref().borrow_mut() = arg;
+        Ok(())
+    }
+
+    fn Length(&self) -> u32 {
+        self.data.deref().borrow().len() as u32
+    }
+
+    fn SubstringData(&self, offset: u32, count: u32) -> Fallible<DOMString> {
+        Ok(self.data.deref().borrow().as_slice().slice(offset as uint, count as uint).to_string())
+    }
+
+    fn AppendData(&self, arg: DOMString) -> ErrorResult {
+        self.data.deref().borrow_mut().push_str(arg.as_slice());
+        Ok(())
+    }
+
+    fn InsertData(&self, offset: u32, arg: DOMString) -> ErrorResult {
+        self.ReplaceData(offset, 0, arg)
+    }
+
+    fn DeleteData(&self, offset: u32, count: u32) -> ErrorResult {
+        self.ReplaceData(offset, count, "".to_string())
+    }
+
+    fn ReplaceData(&self, offset: u32, count: u32, arg: DOMString) -> ErrorResult {
+        let length = self.data.deref().borrow().len() as u32;
+        if offset > length {
+            return Err(IndexSize);
+        }
+        let count = if offset + count > length {
+            length - offset
+        } else {
+            count
+        };
+        let mut data = self.data.deref().borrow().as_slice().slice(0, offset as uint).to_string();
+        data.push_str(arg.as_slice());
+        data.push_str(self.data.deref().borrow().as_slice().slice((offset + count) as uint, length as uint));
+        *self.data.deref().borrow_mut() = data;
+        // FIXME: Once we have `Range`, we should implement step7 to step11
+        Ok(())
+    }
+
+    // http://dom.spec.whatwg.org/#dom-childnode-remove
+    fn Remove(&self) {
+        let node: &JSRef<Node> = NodeCast::from_ref(self);
+        node.remove_self();
+    }
+}
+
+impl Reflectable for CharacterData {
+    fn reflector<'a>(&'a self) -> &'a Reflector {
+        self.node.reflector()
+    }
+}