Move CSSErrorReporter to script_layout_interface.

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(),
+         }
+     }
+}