1 files changed, 22 insertions, 5 deletions
diff --git a/components/script/timers.rs b/components/script/timers.rs
index 0502bdfcd38..ed41835b464 100644
--- a/components/script/timers.rs
+++ b/components/script/timers.rs
@@ -8,9 +8,12 @@ use dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use dom::bindings::js::JSRef;
 use dom::bindings::utils::Reflectable;
 
+use dom::window::ScriptHelpers;
+
 use script_task::{ScriptChan, ScriptMsg, TimerSource};
 
 use servo_util::task::spawn_named;
+use servo_util::str::DOMString;
 
 use js::jsval::JSVal;
 
@@ -35,6 +38,13 @@ struct TimerHandle {
     cancel_chan: Option<Sender<()>>,
 }
 
+#[jstraceable]
+#[deriving(Clone)]
+pub enum TimerCallback {
+    StringTimerCallback(DOMString),
+    FunctionTimerCallback(Function)
+}
+
 impl Hash for TimerId {
     fn hash(&self, state: &mut sip::SipState) {
         let TimerId(id) = *self;
@@ -82,7 +92,7 @@ pub enum IsInterval {
 #[deriving(Clone)]
 struct TimerData {
     is_interval: IsInterval,
-    funval: Function,
+    callback: TimerCallback,
     args: Vec<JSVal>
 }
 
@@ -95,7 +105,7 @@ impl TimerManager {
     }
 
     pub fn set_timeout_or_interval(&self,
-                                  callback: Function,
+                                  callback: TimerCallback,
                                   arguments: Vec<JSVal>,
                                   timeout: i32,
                                   is_interval: IsInterval,
@@ -151,7 +161,7 @@ impl TimerManager {
             cancel_chan: Some(cancel_chan),
             data: TimerData {
                 is_interval: is_interval,
-                funval: callback,
+                callback: callback,
                 args: arguments
             }
         };
@@ -163,7 +173,7 @@ impl TimerManager {
         let mut timer_handle = self.active_timers.borrow_mut().remove(&TimerId(handle));
         match timer_handle {
             Some(ref mut handle) => handle.cancel(),
-            None => { }
+            None => {}
         }
     }
 
@@ -175,7 +185,14 @@ impl TimerManager {
         };
 
         // TODO: Must handle rooting of funval and args when movable GC is turned on
-        let _ = data.funval.Call_(this, data.args, ReportExceptions);
+        match data.callback {
+            TimerCallback::FunctionTimerCallback(function) => {
+                let _ = function.Call_(this, data.args, ReportExceptions);
+            }
+            TimerCallback::StringTimerCallback(code_str) => {
+                this.evaluate_js_on_global_with_result(code_str.as_slice());
+            }
+        };
 
         if data.is_interval == IsInterval::NonInterval {
             self.active_timers.borrow_mut().remove(&timer_id);