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Refactor fragment parsing

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This commit is contained in:
Chris Paris 2015-03-20 22:37:05 -10:00
parent 3c5c2f416b
commit 63ced23fca
3 changed files with 74 additions and 55 deletions
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44
components/script/parse/html.rs
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@ -5,18 +5,22 @@
#![allow(unsafe_code, unrooted_must_root)]
use dom::attr::AttrHelpers;
use dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::codegen::InheritTypes::{NodeCast, ElementCast, HTMLScriptElementCast};
use dom::bindings::codegen::InheritTypes::{DocumentTypeCast, TextCast, CommentCast};
use dom::bindings::codegen::InheritTypes::ProcessingInstructionCast;
use dom::bindings::codegen::InheritTypes::HTMLFormElementDerived;
use dom::bindings::js::{JS, JSRef, Temporary, OptionalRootable, Root};
use dom::comment::Comment;
use dom::document::{Document, DocumentHelpers};
use dom::document::{DocumentSource, IsHTMLDocument};
use dom::documenttype::DocumentType;
use dom::element::{Element, AttributeHandlers, ElementHelpers, ElementCreator};
use dom::htmlscriptelement::HTMLScriptElement;
use dom::htmlscriptelement::HTMLScriptElementHelpers;
use dom::node::{Node, NodeHelpers, NodeTypeId};
use dom::node::{document_from_node, window_from_node};
use dom::processinginstruction::ProcessingInstruction;
use dom::servohtmlparser;
use dom::servohtmlparser::{ServoHTMLParser, FragmentContext};
@ -324,3 +328,43 @@ pub fn parse_html(document: JSRef<Document>,
debug!("finished parsing");
}
// https://html.spec.whatwg.org/multipage/syntax.html#parsing-html-fragments
pub fn parse_html_fragment(context_node: JSRef<Node>, input: HTMLInput) -> Vec<Temporary<Node>> {
let window = window_from_node(context_node).root();
let context_document = document_from_node(context_node).root();
let url = context_document.r().url();
// 1. Create a new Document node, and mark it as being an HTML document.
let document = Document::new(window.r(), Some(url.clone()),
IsHTMLDocument::HTMLDocument,
None, None,
DocumentSource::FromParser).root();
// 2. If the node document of the context element is in quirks mode,
// then let the Document be in quirks mode. Otherwise,
// the node document of the context element is in limited-quirks mode,
// then let the Document be in limited-quirks mode. Otherwise,
// leave the Document in no-quirks mode.
document.r().set_quirks_mode(context_document.r().quirks_mode());
// 11. Set the parser's form element pointer to the nearest node to
// the context element that is a form element (going straight up
// the ancestor chain, and including the element itself, if it
// is a form element), if any. (If there is no such form element,
// the form element pointer keeps its initial value, null.)
let form = context_node.inclusive_ancestors()
.find(|element| element.is_htmlformelement());
let fragment_context = FragmentContext {
context_elem: context_node,
form_elem: form,
};
parse_html(document.r(), input, &url, Some(fragment_context));
// "14. Return the child nodes of root, in tree order."
let root_element = document.r().GetDocumentElement().expect("no document element").root();
let root_node: JSRef<Node> = NodeCast::from_ref(root_element.r());
root_node.children()
.map(|node| Temporary::from_rooted(node))
.collect()
}