Add m-esr52 at 52.6.0

1 files changed, 67 insertions, 0 deletions

diff --git a/dom/workers/test/eventDispatch_worker.js b/dom/workers/test/eventDispatch_worker.js
new file mode 100644
index 000000000..915f60c93
--- /dev/null
+++ b/dom/workers/test/eventDispatch_worker.js
@@ -0,0 +1,67 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+const fakeEventType = "foo";
+
+function testEventTarget(event) {
+  if (event.target !== self) {
+    throw new Error("Event has a bad target!");
+  }
+  if (event.currentTarget) {
+    throw new Error("Event has a bad currentTarget!");
+  }
+  postMessage(event.data);
+}
+
+addEventListener(fakeEventType, function(event) {
+  throw new Error("Trusted event listener received untrusted event!");
+}, false, false);
+
+addEventListener(fakeEventType, function(event) {
+  if (event.target !== self || event.currentTarget !== self) {
+    throw new Error("Fake event has bad target!");
+  }
+  if (event.isTrusted) {
+    throw new Error("Event should be untrusted!");
+  }
+  event.stopImmediatePropagation();
+  postMessage(event.data);
+}, false, true);
+
+addEventListener(fakeEventType, function(event) {
+  throw new Error("This shouldn't get called because of stopImmediatePropagation.");
+}, false, true);
+
+var count = 0;
+onmessage = function(event) {
+  if (event.target !== self || event.currentTarget !== self) {
+    throw new Error("Event has bad target!");
+  }
+
+  if (!count++) {
+    var exception;
+    try {
+      self.dispatchEvent(event);
+    }
+    catch(e) {
+      exception = e;
+    }
+
+    if (!exception) {
+      throw new Error("Recursive dispatch didn't fail!");
+    }
+
+    event = new MessageEvent(fakeEventType, { bubbles: event.bubbles,
+                                              cancelable: event.cancelable,
+                                              data: event.data,
+                                              origin: "*",
+                                              source: null
+                                            });
+    self.dispatchEvent(event);
+
+    return;
+  }
+
+  setTimeout(testEventTarget, 0, event);
+};