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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/. */
//! 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()
}
}
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