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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::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::CharacterDataBinding::CharacterDataMethods;
use dom::bindings::codegen::InheritTypes::{CharacterDataDerived, NodeCast};
use dom::bindings::error::{Fallible, ErrorResult};
use dom::bindings::error::Error::IndexSize;
use dom::bindings::js::JSRef;
use dom::document::Document;
use dom::eventtarget::{EventTarget, EventTargetTypeId};
use dom::node::{Node, NodeHelpers, NodeTypeId};
use util::str::DOMString;
use std::borrow::ToOwned;
use std::cell::Ref;
#[dom_struct]
pub struct CharacterData {
node: Node,
data: DOMRefCell<DOMString>,
}
impl CharacterDataDerived for EventTarget {
fn is_characterdata(&self) -> bool {
match *self.type_id() {
EventTargetTypeId::Node(NodeTypeId::Text) |
EventTargetTypeId::Node(NodeTypeId::Comment) |
EventTargetTypeId::Node(NodeTypeId::ProcessingInstruction) => true,
_ => false
}
}
}
impl CharacterData {
pub fn new_inherited(id: NodeTypeId, data: DOMString, document: JSRef<Document>) -> CharacterData {
CharacterData {
node: Node::new_inherited(id, document),
data: DOMRefCell::new(data),
}
}
#[inline]
pub fn node<'a>(&'a self) -> &'a Node {
&self.node
}
#[inline]
pub fn data(&self) -> Ref<DOMString> {
self.data.borrow()
}
#[inline]
pub fn set_data(&self, data: DOMString) {
*self.data.borrow_mut() = data;
}
#[inline]
#[allow(unsafe_code)]
pub unsafe fn data_for_layout<'a>(&'a self) -> &'a str {
self.data.borrow_for_layout().as_slice()
}
}
impl<'a> CharacterDataMethods for JSRef<'a, CharacterData> {
fn Data(self) -> DOMString {
// FIXME(https://github.com/rust-lang/rust/issues/23338)
let data = self.data.borrow();
data.clone()
}
fn SetData(self, arg: DOMString) -> ErrorResult {
*self.data.borrow_mut() = arg;
Ok(())
}
fn Length(self) -> u32 {
// FIXME(https://github.com/rust-lang/rust/issues/23338)
let data = self.data.borrow();
data.chars().count() as u32
}
fn SubstringData(self, offset: u32, count: u32) -> Fallible<DOMString> {
// FIXME(https://github.com/rust-lang/rust/issues/23338)
let data = self.data.borrow();
Ok(data.slice_chars(offset as usize, (offset + count) as usize).to_owned())
}
fn AppendData(self, arg: DOMString) -> ErrorResult {
self.data.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_owned())
}
fn ReplaceData(self, offset: u32, count: u32, arg: DOMString) -> ErrorResult {
let length = self.data.borrow().chars().count() as u32;
if offset > length {
return Err(IndexSize);
}
let count = if offset + count > length {
length - offset
} else {
count
};
let mut data = self.data.borrow().slice_chars(0, offset as usize).to_owned();
data.push_str(arg.as_slice());
data.push_str(&self.data.borrow().slice_chars((offset + count) as usize, length as usize));
*self.data.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();
}
}
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