mirror of
https://github.com/servo/servo.git
synced 2025-08-03 12:40:06 +01:00
parent
7a5f15f137
commit
1ae3bda172
17 changed files with 154 additions and 196 deletions
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@ -2,20 +2,25 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::attr::AttrHelpers;
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use dom::bindings::codegen::Bindings::HTMLLinkElementBinding;
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use dom::bindings::codegen::InheritTypes::HTMLLinkElementDerived;
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use dom::bindings::codegen::InheritTypes::{HTMLElementCast, NodeCast};
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use dom::bindings::js::{JSRef, Temporary};
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use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLElementCast, NodeCast};
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use dom::bindings::js::{JSRef, Temporary, OptionalRootable};
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use dom::bindings::utils::{Reflectable, Reflector};
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use dom::document::Document;
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use dom::element::HTMLLinkElementTypeId;
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use dom::element::{AttributeHandlers, Element, HTMLLinkElementTypeId};
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use dom::eventtarget::{EventTarget, NodeTargetTypeId};
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use dom::htmlelement::HTMLElement;
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use dom::node::{Node, NodeHelpers, ElementNodeTypeId};
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use dom::node::{Node, NodeHelpers, ElementNodeTypeId, window_from_node};
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use dom::virtualmethods::VirtualMethods;
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use layout_interface::{LayoutChan, LoadStylesheetMsg};
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use servo_util::atom::Atom;
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use servo_util::str::DOMString;
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use servo_util::str::{DOMString, HTML_SPACE_CHARACTERS};
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use servo_util::namespace::Null;
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use std::ascii::StrAsciiExt;
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use url::UrlParser;
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#[deriving(Encodable)]
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pub struct HTMLLinkElement {
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@ -72,6 +77,55 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLLinkElement> {
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_ => ()
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}
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}
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fn bind_to_tree(&self, tree_in_doc: bool) {
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match self.super_type() {
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Some(ref s) => s.bind_to_tree(tree_in_doc),
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_ => ()
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}
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if tree_in_doc {
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let element: &JSRef<Element> = ElementCast::from_ref(self);
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// FIXME: workaround for https://github.com/mozilla/rust/issues/13246;
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// we get unrooting order failures if these are inside the match.
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let rel = {
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let rel = element.get_attribute(Null, "rel").root();
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rel.map(|rel| rel.deref().value().as_slice().to_string())
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};
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let href = {
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let href = element.get_attribute(Null, "href").root();
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href.map(|href| href.deref().value().as_slice().to_string())
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};
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match (rel, href) {
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(Some(ref rel), Some(ref href)) => {
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if rel.as_slice().split(HTML_SPACE_CHARACTERS.as_slice())
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.any(|s| s.as_slice().eq_ignore_ascii_case("stylesheet")) {
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self.handle_stylesheet_url(href.as_slice());
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}
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}
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_ => {}
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}
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}
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}
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}
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trait PrivateHTMLLinkElementHelpers {
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fn handle_stylesheet_url(&self, href: &str);
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}
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impl<'a> PrivateHTMLLinkElementHelpers for JSRef<'a, HTMLLinkElement> {
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fn handle_stylesheet_url(&self, href: &str) {
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let window = window_from_node(self).root();
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match UrlParser::new().base_url(&window.deref().page().get_url()).parse(href) {
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Ok(url) => {
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let LayoutChan(ref layout_chan) = *window.deref().page().layout_chan;
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layout_chan.send(LoadStylesheetMsg(url));
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}
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Err(e) => debug!("Parsing url {:s} failed: {:?}", href, e)
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}
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}
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}
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impl Reflectable for HTMLLinkElement {
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@ -13,9 +13,9 @@ use dom::eventtarget::{EventTarget, NodeTargetTypeId};
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use dom::htmlelement::HTMLElement;
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use dom::node::{Node, NodeHelpers, ElementNodeTypeId, window_from_node};
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use dom::virtualmethods::VirtualMethods;
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use html::cssparse::parse_inline_css;
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use layout_interface::{AddStylesheetMsg, LayoutChan};
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use servo_util::str::DOMString;
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use style::Stylesheet;
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#[deriving(Encodable)]
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pub struct HTMLStyleElement {
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@ -54,7 +54,7 @@ impl<'a> StyleElementHelpers for JSRef<'a, HTMLStyleElement> {
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let url = win.deref().page().get_url();
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let data = node.GetTextContent().expect("Element.textContent must be a string");
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let sheet = parse_inline_css(url, data);
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let sheet = Stylesheet::from_str(data.as_slice(), url);
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let LayoutChan(ref layout_chan) = *win.deref().page().layout_chan;
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layout_chan.send(AddStylesheetMsg(sheet));
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}
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@ -1,72 +0,0 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/// Some little helpers for hooking up the HTML parser with the CSS parser.
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use std::comm::{channel, Receiver};
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use encoding::EncodingRef;
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use encoding::all::UTF_8;
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use style::Stylesheet;
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use servo_net::resource_task::{Load, LoadData, LoadResponse, ProgressMsg, Payload, Done, ResourceTask};
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use servo_util::task::spawn_named;
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use url::Url;
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/// Where a style sheet comes from.
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pub enum StylesheetProvenance {
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UrlProvenance(Url, ResourceTask),
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InlineProvenance(Url, String),
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}
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// Parses the style data and returns the stylesheet
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pub fn parse_inline_css(url: Url, data: String) -> Stylesheet {
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parse_css(InlineProvenance(url, data))
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}
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fn parse_css(provenance: StylesheetProvenance) -> Stylesheet {
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// TODO: Get the actual value. http://dev.w3.org/csswg/css-syntax/#environment-encoding
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let environment_encoding = UTF_8 as EncodingRef;
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match provenance {
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UrlProvenance(url, resource_task) => {
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debug!("cssparse: loading style sheet at {:s}", url.serialize());
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let (input_chan, input_port) = channel();
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resource_task.send(Load(LoadData::new(url), input_chan));
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let LoadResponse { metadata: metadata, progress_port: progress_port , ..}
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= input_port.recv();
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let final_url = &metadata.final_url;
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let protocol_encoding_label = metadata.charset.as_ref().map(|s| s.as_slice());
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let iter = ProgressMsgPortIterator { progress_port: progress_port };
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Stylesheet::from_bytes_iter(
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iter, final_url.clone(),
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protocol_encoding_label, Some(environment_encoding))
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}
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InlineProvenance(base_url, data) => {
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debug!("cssparse: loading inline stylesheet {:s}", data);
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Stylesheet::from_str(data.as_slice(), base_url)
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}
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}
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}
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pub fn spawn_css_parser(provenance: StylesheetProvenance) -> Receiver<Stylesheet> {
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let (result_chan, result_port) = channel();
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spawn_named("cssparser", proc() {
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result_chan.send(parse_css(provenance));
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});
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return result_port;
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}
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struct ProgressMsgPortIterator {
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progress_port: Receiver<ProgressMsg>
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}
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impl Iterator<Vec<u8>> for ProgressMsgPortIterator {
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fn next(&mut self) -> Option<Vec<u8>> {
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match self.progress_port.recv() {
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Payload(data) => Some(data),
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Done(..) => None
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}
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}
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}
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@ -10,14 +10,13 @@ use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLScriptElementCast};
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use dom::bindings::js::{JS, JSRef, Temporary, OptionalRootable, Root};
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use dom::bindings::utils::Reflectable;
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use dom::document::{Document, DocumentHelpers};
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use dom::element::{AttributeHandlers, HTMLLinkElementTypeId};
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use dom::element::AttributeHandlers;
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use dom::htmlelement::HTMLElement;
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use dom::htmlheadingelement::{Heading1, Heading2, Heading3, Heading4, Heading5, Heading6};
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use dom::htmlformelement::HTMLFormElement;
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use dom::htmlscriptelement::HTMLScriptElementHelpers;
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use dom::node::{ElementNodeTypeId, NodeHelpers};
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use dom::node::NodeHelpers;
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use dom::types::*;
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use html::cssparse::{StylesheetProvenance, UrlProvenance, spawn_css_parser};
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use page::Page;
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use encoding::all::UTF_8;
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use servo_util::atom::Atom;
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use servo_util::namespace;
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use servo_util::namespace::{Namespace, Null};
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use servo_util::str::{DOMString, HTML_SPACE_CHARACTERS};
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use servo_util::str::DOMString;
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use servo_util::task::spawn_named;
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use std::ascii::StrAsciiExt;
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use std::mem;
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use std::cell::RefCell;
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use std::comm::{channel, Sender, Receiver};
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use style::Stylesheet;
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use url::{Url, UrlParser};
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use http::headers::HeaderEnum;
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use time;
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InputUrl(Url),
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}
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enum CSSMessage {
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CSSTaskNewFile(StylesheetProvenance),
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CSSTaskExit
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}
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enum JSMessage {
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JSTaskNewFile(Url),
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JSTaskNewInlineScript(String, Option<Url>),
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/// Messages generated by the HTML parser upon discovery of additional resources
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pub enum HtmlDiscoveryMessage {
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HtmlDiscoveredStyle(Stylesheet),
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HtmlDiscoveredScript(JSResult)
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}
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@ -100,43 +92,6 @@ unsafe fn from_hubbub_node<T: Reflectable>(n: hubbub::NodeDataPtr) -> Temporary<
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Temporary::new(JS::from_raw(mem::transmute(n)))
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}
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/**
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Runs a task that coordinates parsing links to css stylesheets.
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This function should be spawned in a separate task and spins waiting
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for the html builder to find links to css stylesheets and sends off
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tasks to parse each link. When the html process finishes, it notifies
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the listener, who then collects the css rules from each task it
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spawned, collates them, and sends them to the given result channel.
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# Arguments
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* `to_parent` - A channel on which to send back the full set of rules.
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* `from_parent` - A port on which to receive new links.
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*/
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fn css_link_listener(to_parent: Sender<HtmlDiscoveryMessage>,
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from_parent: Receiver<CSSMessage>) {
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let mut result_vec = vec!();
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loop {
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match from_parent.recv_opt() {
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Ok(CSSTaskNewFile(provenance)) => {
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result_vec.push(spawn_css_parser(provenance));
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}
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Ok(CSSTaskExit) | Err(()) => {
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break;
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}
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}
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}
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// Send the sheets back in order
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// FIXME: Shouldn't wait until after we've recieved CSSTaskExit to start sending these
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for port in result_vec.iter() {
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assert!(to_parent.send_opt(HtmlDiscoveredStyle(port.recv())).is_ok());
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}
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}
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fn js_script_listener(to_parent: Sender<HtmlDiscoveryMessage>,
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from_parent: Receiver<JSMessage>,
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resource_task: ResourceTask) {
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@ -335,16 +290,9 @@ pub fn parse_html(page: &Page,
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resource_task: ResourceTask)
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-> HtmlParserResult {
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debug!("Hubbub: parsing {:?}", input);
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// Spawn a CSS parser to receive links to CSS style sheets.
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let (discovery_chan, discovery_port) = channel();
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let stylesheet_chan = discovery_chan.clone();
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let (css_chan, css_msg_port) = channel();
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spawn_named("parse_html:css", proc() {
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css_link_listener(stylesheet_chan, css_msg_port);
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});
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// Spawn a JS parser to receive JavaScript.
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let (discovery_chan, discovery_port) = channel();
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let resource_task2 = resource_task.clone();
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let js_result_chan = discovery_chan.clone();
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let (js_chan, js_msg_port) = channel();
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@ -395,7 +343,7 @@ pub fn parse_html(page: &Page,
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let mut parser = build_parser(unsafe { document.to_hubbub_node() });
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debug!("created parser");
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let (css_chan2, js_chan2) = (css_chan.clone(), js_chan.clone());
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let js_chan2 = js_chan.clone();
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let doc_cell = RefCell::new(document);
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@ -447,54 +395,6 @@ pub fn parse_html(page: &Page,
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prefix.map(|p| p.to_string()));
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}
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//FIXME: workaround for https://github.com/mozilla/rust/issues/13246;
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// we get unrooting order failures if these are inside the match.
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let rel = {
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let rel = element.deref().get_attribute(Null, "rel").root();
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rel.map(|a| a.deref().Value())
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};
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let href = {
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let href= element.deref().get_attribute(Null, "href").root();
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href.map(|a| a.deref().Value())
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};
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// Spawn additional parsing, network loads, etc. from tag and attrs
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let type_id = {
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let node: &JSRef<Node> = NodeCast::from_ref(&*element);
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node.type_id()
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};
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match type_id {
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// Handle CSS style sheets from <link> elements
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ElementNodeTypeId(HTMLLinkElementTypeId) => {
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match (rel, href) {
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(Some(ref rel), Some(ref href)) => {
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if rel.as_slice()
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.split(HTML_SPACE_CHARACTERS.as_slice())
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.any(|s| {
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s.as_slice().eq_ignore_ascii_case("stylesheet")
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}) {
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debug!("found CSS stylesheet: {:s}", *href);
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let mut url_parser = UrlParser::new();
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match base_url {
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None => (),
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Some(ref base_url) => {
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url_parser.base_url(base_url);
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}
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}
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match url_parser.parse(href.as_slice()) {
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Ok(url) => css_chan2.send(CSSTaskNewFile(
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UrlProvenance(url, resource_task.clone()))),
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Err(e) => debug!("Parsing url {:s} failed: {:?}", *href, e)
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};
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}
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}
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_ => {}
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}
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}
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_ => {}
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}
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unsafe { element.deref().to_hubbub_node() }
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},
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create_text: |data: String| {
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@ -641,7 +541,6 @@ pub fn parse_html(page: &Page,
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}
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debug!("finished parsing");
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css_chan.send(CSSTaskExit);
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js_chan.send(JSTaskExit);
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HtmlParserResult {
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|
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@ -29,6 +29,9 @@ pub enum Msg {
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/// Adds the given stylesheet to the document.
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AddStylesheetMsg(Stylesheet),
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/// Adds the given stylesheet to the document.
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LoadStylesheetMsg(Url),
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/// Requests a reflow.
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ReflowMsg(Box<Reflow>),
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|
|
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@ -199,7 +199,6 @@ pub mod dom {
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/// Parsers for HTML and CSS.
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pub mod html {
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pub mod cssparse;
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pub mod hubbub_html_parser;
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}
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|
|
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@ -23,10 +23,8 @@ use dom::node::{ElementNodeTypeId, Node, NodeHelpers};
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use dom::window::{TimerId, Window, WindowHelpers};
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use dom::worker::{Worker, TrustedWorkerAddress};
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use dom::xmlhttprequest::{TrustedXHRAddress, XMLHttpRequest, XHRProgress};
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use html::hubbub_html_parser::{InputString, InputUrl, HtmlParserResult};
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use html::hubbub_html_parser::{HtmlDiscoveredStyle, HtmlDiscoveredScript};
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use html::hubbub_html_parser::{InputString, InputUrl, HtmlParserResult, HtmlDiscoveredScript};
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use html::hubbub_html_parser;
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use layout_interface::AddStylesheetMsg;
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use layout_interface::{ScriptLayoutChan, LayoutChan, MatchSelectorsDocumentDamage};
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use layout_interface::{ReflowDocumentDamage, ReflowForDisplay};
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use layout_interface::ContentChangedDocumentDamage;
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|
@ -682,10 +680,6 @@ impl ScriptTask {
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assert!(js_scripts.is_none());
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js_scripts = Some(scripts);
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}
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Ok(HtmlDiscoveredStyle(sheet)) => {
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let LayoutChan(ref chan) = *page.layout_chan;
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chan.send(AddStylesheetMsg(sheet));
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}
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Err(()) => break
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}
|
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}
|
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|
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Reference in a new issue