forked from mirrors/gecko-dev
7269bcf046
This is a rebased version of PR #11595 --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #11485 <!-- Either: --> - [ ] There are tests for these changes OR - [x] These changes do not require tests because: no code logic was changed <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: f70fc6644ddb142627c188ebbde2cc0a0282f9b4
64 lines
2.2 KiB
Rust
64 lines
2.2 KiB
Rust
/* 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::js::Root;
|
|
use dom::bindings::reflector::{Reflector, reflect_dom_object};
|
|
use dom::bindings::str::{DOMString, USVString};
|
|
use dom::globalscope::GlobalScope;
|
|
use encoding::EncoderTrap;
|
|
use encoding::Encoding;
|
|
use encoding::all::UTF_8;
|
|
use js::jsapi::{JSContext, JSObject};
|
|
use js::jsapi::{JS_GetUint8ArrayData, JS_NewUint8Array};
|
|
use libc::uint8_t;
|
|
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.name())
|
|
}
|
|
|
|
#[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 = UTF_8.encode(&input.0, EncoderTrap::Strict).unwrap();
|
|
let length = encoded.len() as u32;
|
|
rooted!(in(cx) let js_object = JS_NewUint8Array(cx, length));
|
|
assert!(!js_object.is_null());
|
|
let mut is_shared = false;
|
|
let js_object_data: *mut uint8_t = JS_GetUint8ArrayData(js_object.get(), &mut is_shared, ptr::null());
|
|
assert!(!is_shared);
|
|
ptr::copy_nonoverlapping(encoded.as_ptr(), js_object_data, length as usize);
|
|
NonZero::new(js_object.get())
|
|
}
|
|
}
|