Move CSSErrorReporter to script_layout_interface.

components/script_layout_interface/Cargo.toml

@@ -12,12 +12,14 @@ path = "lib.rs"
 app_units = {version = "0.2.3", features = ["plugins"]}
 bitflags = "0.7"
 canvas_traits = {path = "../canvas_traits"}
+cssparser = {version = "0.5.4", features = ["heap_size", "serde-serialization"]}
 euclid = {version = "0.6.4", features = ["plugins"]}
 gfx_traits = {path = "../gfx_traits"}
 heapsize = "0.3.0"
 heapsize_plugin = "0.1.2"
 ipc-channel = {git = "https://github.com/servo/ipc-channel"}
 libc = "0.2"
+log = "0.3.5"
 msg = {path = "../msg"}
 net_traits = {path = "../net_traits"}
 profile_traits = {path = "../profile_traits"}

components/script_layout_interface/lib.rs

@@ -7,6 +7,7 @@
 //! to depend on script.
 
 #![deny(unsafe_code)]
+#![feature(box_syntax)]
 #![feature(custom_attribute)]
 #![feature(custom_derive)]
 #![feature(nonzero)]
@@ -20,11 +21,14 @@ extern crate app_units;
 extern crate bitflags;
 extern crate canvas_traits;
 extern crate core;
+extern crate cssparser;
 extern crate euclid;
 extern crate gfx_traits;
 extern crate heapsize;
 extern crate ipc_channel;
 extern crate libc;
+#[macro_use]
+extern crate log;
 extern crate msg;
 extern crate net_traits;
 extern crate profile_traits;
@@ -38,6 +42,7 @@ extern crate url;
 extern crate util;
 
 pub mod message;
+pub mod reporter;
 pub mod restyle_damage;
 pub mod rpc;
 pub mod wrapper_traits;

components/script_layout_interface/reporter.rs

@@ -0,0 +1,44 @@
+/* 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 cssparser::{Parser, SourcePosition};
+use ipc_channel::ipc::IpcSender;
+use log;
+use msg::constellation_msg::PipelineId;
+use script_traits::ConstellationControlMsg;
+use std::sync::{Mutex, Arc};
+use style::error_reporting::ParseErrorReporter;
+
+#[derive(HeapSizeOf)]
+pub struct CSSErrorReporter {
+    pub pipelineid: PipelineId,
+    // Arc+Mutex combo is necessary to make this struct Sync,
+    // which is necessary to fulfill the bounds required by the
+    // uses of the ParseErrorReporter trait.
+    #[ignore_heap_size_of = "Arc is defined in libstd"]
+    pub script_chan: Arc<Mutex<IpcSender<ConstellationControlMsg>>>,
+}
+
+impl ParseErrorReporter for CSSErrorReporter {
+     fn report_error(&self, input: &mut Parser, position: SourcePosition, message: &str) {
+         let location = input.source_location(position);
+         if log_enabled!(log::LogLevel::Info) {
+             info!("{}:{} {}", location.line, location.column, message)
+         }
+         //TODO: report a real filename
+         let _ = self.script_chan.lock().unwrap().send(
+             ConstellationControlMsg::ReportCSSError(self.pipelineid,
+                                                     "".to_owned(),
+                                                     location.line,
+                                                     location.column,
+                                                     message.to_owned()));
+     }
+
+     fn clone(&self) -> Box<ParseErrorReporter + Send + Sync> {
+         box CSSErrorReporter {
+             pipelineid: self.pipelineid,
+             script_chan: self.script_chan.clone(),
+         }
+     }
+}