1 files changed, 13 insertions, 0 deletions
diff --git a/components/script/dom/globalscope.rs b/components/script/dom/globalscope.rs
index 596530058ec..b2429948874 100644
--- a/components/script/dom/globalscope.rs
+++ b/components/script/dom/globalscope.rs
@@ -59,6 +59,7 @@ use task_source::file_reading::FileReadingTaskSource;
 use task_source::networking::NetworkingTaskSource;
 use task_source::performance_timeline::PerformanceTimelineTaskSource;
 use task_source::remote_event::RemoteEventTaskSource;
+use task_source::websocket::WebsocketTaskSource;
 use time::{Timespec, get_time};
 use timers::{IsInterval, OneshotTimerCallback, OneshotTimerHandle};
 use timers::{OneshotTimers, TimerCallback};
@@ -430,6 +431,18 @@ impl GlobalScope {
         unreachable!();
     }
 
+    /// `ScriptChan` to send messages to the websocket task source of
+    /// this global scope.
+    pub fn websocket_task_source(&self) -> WebsocketTaskSource {
+        if let Some(window) = self.downcast::<Window>() {
+            return window.websocket_task_source();
+        }
+        if let Some(worker) = self.downcast::<WorkerGlobalScope>() {
+            return worker.websocket_task_source();
+        }
+        unreachable!();
+    }
+
     /// Evaluate JS code on this global scope.
     pub fn evaluate_js_on_global_with_result(
             &self, code: &str, rval: MutableHandleValue) -> bool {