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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/. */
use core::nonzero::NonZero;
use dom::bindings::codegen::Bindings::TextEncoderBinding;
use dom::bindings::codegen::Bindings::TextEncoderBinding::TextEncoderMethods;
use dom::bindings::error::Fallible;
use dom::bindings::reflector::{Reflector, reflect_dom_object};
use dom::bindings::root::Root;
use dom::bindings::str::{DOMString, USVString};
use dom::globalscope::GlobalScope;
use dom_struct::dom_struct;
use js::jsapi::{JSContext, JSObject};
use js::typedarray::{Uint8Array, CreateWith};
use std::ptr;
#[dom_struct]
pub struct TextEncoder {
reflector_: Reflector,
}
impl TextEncoder {
fn new_inherited() -> TextEncoder {
TextEncoder {
reflector_: Reflector::new(),
}
}
pub fn new(global: &GlobalScope) -> Root<TextEncoder> {
reflect_dom_object(box TextEncoder::new_inherited(),
global,
TextEncoderBinding::Wrap)
}
// https://encoding.spec.whatwg.org/#dom-textencoder
pub fn Constructor(global: &GlobalScope) -> Fallible<Root<TextEncoder>> {
Ok(TextEncoder::new(global))
}
}
impl TextEncoderMethods for TextEncoder {
// https://encoding.spec.whatwg.org/#dom-textencoder-encoding
fn Encoding(&self) -> DOMString {
DOMString::from("utf-8")
}
#[allow(unsafe_code)]
// https://encoding.spec.whatwg.org/#dom-textencoder-encode
unsafe fn Encode(&self, cx: *mut JSContext, input: USVString) -> NonZero<*mut JSObject> {
let encoded = input.0.as_bytes();
rooted!(in(cx) let mut js_object = ptr::null_mut());
assert!(Uint8Array::create(cx, CreateWith::Slice(&encoded), js_object.handle_mut()).is_ok());
NonZero::new_unchecked(js_object.get())
}
}
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