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Update specification references and TODO comments in HTMLScriptElement.

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This commit is contained in:
Ms2ger 2016-01-07 14:47:50 +01:00
parent e5fcb7a5b7
commit 649614eedc
1 changed files with 23 additions and 46 deletions
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69
components/script/dom/htmlscriptelement.rs
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@ -192,33 +192,33 @@ impl HTMLScriptElement {
if !self.upcast::<Node>().is_in_doc() {
return NextParserState::Continue;
}
// Step 6, 7.
// Step 6.
if !self.is_javascript() {
return NextParserState::Continue;
}
// Step 8.
// Step 7.
if was_parser_inserted {
self.parser_inserted.set(true);
self.non_blocking.set(false);
}
// Step 9.
// Step 8.
self.already_started.set(true);
// Step 10.
// Step 9.
let doc = document_from_node(self);
let document_from_node_ref = doc.r();
if self.parser_inserted.get() && &*self.parser_document != document_from_node_ref {
return NextParserState::Continue;
}
// Step 11.
// Step 10.
if !document_from_node_ref.is_scripting_enabled() {
return NextParserState::Continue;
}
// TODO: Step 12.
// TODO(#4577): Step 11: CSP.
// Step 13.
// Step 12.
let for_attribute = element.get_attribute(&ns!(), &atom!("for"));
let event_attribute = element.get_attribute(&ns!(), &atom!("event"));
match (for_attribute.r(), event_attribute.r()) {
@ -238,44 +238,40 @@ impl HTMLScriptElement {
(_, _) => (),
}
// Step 14.
// Step 13.
if let Some(ref charset) = element.get_attribute(&ns!(), &atom!("charset")) {
if let Some(encodingRef) = encoding_from_whatwg_label(&charset.Value()) {
*self.block_character_encoding.borrow_mut() = encodingRef;
}
}
// Step 15.
let window = window_from_node(self);
let window = window.r();
let base_url = window.get_url();
// Step 14.
let is_external = match element.get_attribute(&ns!(), &atom!("src")) {
// Step 15.
Some(ref src) => {
// Step 15.1
// Step 14.1.
let src = src.value();
// Step 15.2
// Step 14.2.
if src.is_empty() {
self.queue_error_event();
return NextParserState::Continue;
}
// Step 15.3
// Step 14.3.
match base_url.join(&src) {
Err(_) => {
// Step 15.4
// Step 14.4.
error!("error parsing URL for script {}", &**src);
self.queue_error_event();
return NextParserState::Continue;
}
Ok(url) => {
// Step 15.5
// TODO: Do a potentially CORS-enabled fetch with the mode being the current
// state of the element's `crossorigin` content attribute, the origin being
// the origin of the script element's node document, and the default origin
// behaviour set to taint.
// Step 14.5-7.
// TODO(#9186): use the fetch infrastructure.
let script_chan = window.networking_task_source();
let elem = Trusted::new(self, script_chan.clone());
@ -306,9 +302,9 @@ impl HTMLScriptElement {
None => false,
};
// Step 16.
// Step 15.
let deferred = element.has_attribute(&atom!("defer"));
// Step 16.a, has src, has defer, was parser-inserted, is not async.
// Step 15.a: has src, has defer, was parser-inserted, is not async.
if is_external &&
deferred &&
was_parser_inserted &&
@ -316,13 +312,13 @@ impl HTMLScriptElement {
doc.add_deferred_script(self);
// Second part implemented in Document::process_deferred_scripts.
return NextParserState::Continue;
// Step 16.b, has src, was parser-inserted, is not async.
// Step 15.b: has src, was parser-inserted, is not async.
} else if is_external &&
was_parser_inserted &&
!async {
doc.set_pending_parsing_blocking_script(Some(self));
// Second part implemented in the load result handler.
// Step 16.c, doesn't have src, was parser-inserted, is blocked on stylesheet.
// Step 15.c: doesn't have src, was parser-inserted, is blocked on stylesheet.
} else if !is_external &&
was_parser_inserted &&
// TODO: check for script nesting levels.
@ -330,17 +326,17 @@ impl HTMLScriptElement {
doc.set_pending_parsing_blocking_script(Some(self));
*self.load.borrow_mut() = Some(ScriptOrigin::Internal(text, base_url));
self.ready_to_be_parser_executed.set(true);
// Step 16.d, has src, isn't async, isn't non-blocking.
// Step 15.d: has src, isn't async, isn't non-blocking.
} else if is_external &&
!async &&
!self.non_blocking.get() {
doc.push_asap_in_order_script(self);
// Second part implemented in Document::process_asap_scripts.
// Step 16.e, has src.
// Step 15.e: has src.
} else if is_external {
doc.add_asap_script(self);
// Second part implemented in Document::process_asap_scripts.
// Step 16.f, otherwise.
// Step 15.f: otherwise.
} else {
assert!(!text.is_empty());
self.ready_to_be_parser_executed.set(true);
@ -384,26 +380,7 @@ impl HTMLScriptElement {
// Step 2.b.1.a.
ScriptOrigin::External(Ok((metadata, bytes))) => {
// Step 1.
// TODO: If the resource's Content Type metadata, if any,
// specifies a character encoding, and the user agent supports
// that encoding, then let character encoding be that encoding,
// and jump to the bottom step in this series of steps.
// Step 2.
// TODO: If the algorithm above set the script block's
// character encoding, then let character encoding be that
// encoding, and jump to the bottom step in this series of
// steps.
// Step 3.
// TODO: Let character encoding be the script block's fallback
// character encoding.
// Step 4.
// TODO: Otherwise, decode the file to Unicode, using character
// encoding as the fallback encoding.
// TODO(#9185): implement encoding determination.
(DOMString::from(UTF_8.decode(&*bytes, DecoderTrap::Replace).unwrap()),
true,
metadata.final_url)