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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/. */
//! The bulk of the HTML parser integration is in `script::parse::html`.
//! This module is mostly about its interaction with DOM memory management.
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::ServoHTMLParserBinding;
use dom::bindings::global;
use dom::bindings::trace::JSTraceable;
use dom::bindings::js::{JS, JSRef, Temporary};
use dom::bindings::utils::{Reflectable, Reflector, reflect_dom_object};
use dom::node::TrustedNodeAddress;
use dom::document::{Document, DocumentHelpers};
use parse::html::JSMessage;
use std::default::Default;
use url::Url;
use js::jsapi::JSTracer;
use html5ever::tokenizer;
use html5ever::tree_builder;
use html5ever::tree_builder::{TreeBuilder, TreeBuilderOpts};
#[must_root]
#[jstraceable]
pub struct Sink {
pub js_chan: Sender<JSMessage>,
pub base_url: Option<Url>,
pub document: JS<Document>,
}
pub type Tokenizer = tokenizer::Tokenizer<TreeBuilder<TrustedNodeAddress, Sink>>;
// NB: JSTraceable is *not* auto-derived.
// You must edit the impl below if you add fields!
#[must_root]
#[privatize]
pub struct ServoHTMLParser {
reflector_: Reflector,
tokenizer: DOMRefCell<Tokenizer>,
}
impl ServoHTMLParser {
#[allow(unrooted_must_root)]
pub fn new(js_chan: Sender<JSMessage>, base_url: Option<Url>, document: JSRef<Document>)
-> Temporary<ServoHTMLParser> {
let window = document.window().root();
let sink = Sink {
js_chan: js_chan,
base_url: base_url,
document: JS::from_rooted(document),
};
let tb = TreeBuilder::new(sink, TreeBuilderOpts {
ignore_missing_rules: true,
.. Default::default()
});
let tok = tokenizer::Tokenizer::new(tb, Default::default());
let parser = ServoHTMLParser {
reflector_: Reflector::new(),
tokenizer: DOMRefCell::new(tok),
};
reflect_dom_object(box parser, &global::Window(*window), ServoHTMLParserBinding::Wrap)
}
#[inline]
pub fn tokenizer<'a>(&'a self) -> &'a DOMRefCell<Tokenizer> {
&self.tokenizer
}
}
impl Reflectable for ServoHTMLParser {
fn reflector<'a>(&'a self) -> &'a Reflector {
&self.reflector_
}
}
struct Tracer {
trc: *mut JSTracer,
}
impl tree_builder::Tracer<TrustedNodeAddress> for Tracer {
fn trace_handle(&self, node: TrustedNodeAddress) {
node.trace(self.trc);
}
}
impl JSTraceable for ServoHTMLParser {
fn trace(&self, trc: *mut JSTracer) {
let tracer = Tracer {
trc: trc,
};
let tracer = &tracer as &tree_builder::Tracer<TrustedNodeAddress>;
self.reflector_.trace(trc);
let tokenizer = self.tokenizer.borrow();
let tree_builder = tokenizer.sink();
tree_builder.trace_handles(tracer);
tree_builder.sink().trace(trc);
}
}
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