Auto merge of #11114 - creativcoder:nav-sw, r=jdm

implement related service worker interface and register method

Fixes  #11091

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="35" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/11114)
<!-- Reviewable:end -->

1 files changed, 104 insertions, 0 deletions

diff --git a/components/script/dom/abstractworker.rs b/components/script/dom/abstractworker.rs
new file mode 100644
index 00000000000..f9ff583a0dd
--- /dev/null
+++ b/components/script/dom/abstractworker.rs
@@ -0,0 +1,104 @@
+/* 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 dom::bindings::refcounted::Trusted;
+use dom::bindings::reflector::Reflectable;
+use dom::bindings::str::DOMString;
+use dom::bindings::structuredclone::StructuredCloneData;
+use js::jsapi::{JSRuntime, JS_RequestInterruptCallback};
+use js::rust::Runtime;
+use msg::constellation_msg::{PipelineId, ReferrerPolicy};
+use net_traits::{LoadOrigin, RequestSource};
+use script_runtime::CommonScriptMsg;
+use url::Url;
+
+/// Messages used to control the worker event loops
+pub enum WorkerScriptMsg {
+    /// Common variants associated with the script messages
+    Common(CommonScriptMsg),
+    /// Message sent through Worker.postMessage
+    DOMMessage(StructuredCloneData),
+}
+
+#[derive(Clone)]
+pub struct WorkerScriptLoadOrigin {
+    pub referrer_url: Option<Url>,
+    pub referrer_policy: Option<ReferrerPolicy>,
+    pub request_source: RequestSource,
+    pub pipeline_id: Option<PipelineId>
+}
+
+impl LoadOrigin for WorkerScriptLoadOrigin {
+    fn referrer_url(&self) -> Option<Url> {
+        self.referrer_url.clone()
+    }
+    fn referrer_policy(&self) -> Option<ReferrerPolicy> {
+        self.referrer_policy.clone()
+    }
+    fn request_source(&self) -> RequestSource {
+        self.request_source.clone()
+    }
+    fn pipeline_id(&self) -> Option<PipelineId> {
+        self.pipeline_id.clone()
+    }
+}
+
+pub struct SimpleWorkerErrorHandler<T: Reflectable> {
+    pub addr: Trusted<T>,
+}
+
+impl<T: Reflectable> SimpleWorkerErrorHandler<T> {
+    pub fn new(addr: Trusted<T>) -> SimpleWorkerErrorHandler<T> {
+        SimpleWorkerErrorHandler {
+            addr: addr
+        }
+    }
+}
+
+pub struct WorkerErrorHandler<T: Reflectable> {
+    pub addr: Trusted<T>,
+    pub msg: DOMString,
+    pub file_name: DOMString,
+    pub line_num: u32,
+    pub col_num: u32,
+}
+
+impl<T: Reflectable> WorkerErrorHandler<T> {
+    pub fn new(addr: Trusted<T>, msg: DOMString, file_name: DOMString, line_num: u32, col_num: u32)
+            -> WorkerErrorHandler<T> {
+        WorkerErrorHandler {
+            addr: addr,
+            msg: msg,
+            file_name: file_name,
+            line_num: line_num,
+            col_num: col_num,
+        }
+    }
+}
+
+#[derive(Copy, Clone)]
+pub struct SharedRt {
+    pub rt: *mut JSRuntime
+}
+
+impl SharedRt {
+    pub fn new(rt: &Runtime) -> SharedRt {
+        SharedRt {
+            rt: rt.rt()
+        }
+    }
+
+    #[allow(unsafe_code)]
+    pub fn request_interrupt(&self) {
+        unsafe {
+            JS_RequestInterruptCallback(self.rt);
+        }
+    }
+
+    pub fn rt(&self) -> *mut JSRuntime {
+        self.rt
+    }
+}
+#[allow(unsafe_code)]
+unsafe impl Send for SharedRt {}