1 files changed, 70 insertions, 0 deletions
diff --git a/dom/events/test/test_mouse_capture_iframe.html b/dom/events/test/test_mouse_capture_iframe.html
new file mode 100644
index 0000000000..424e73795d
--- /dev/null
+++ b/dom/events/test/test_mouse_capture_iframe.html
@@ -0,0 +1,70 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Test mouse capture for iframe</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script src="/tests/SimpleTest/EventUtils.js"></script>
+<script src="/tests/SimpleTest/paint_listener.js"></script>
+<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+<style>
+#target {
+  width: 150px;
+  height: 150px;
+}
+</style>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1680405">Mozilla Bug 1680405</a>
+<iframe id="target" frameborder="0" scrolling="no"></iframe>
+<script>
+
+function waitForMessage(aEventType) {
+  return new Promise(function(aResolve, aReject) {
+    window.addEventListener("message", function listener(aEvent) {
+      is(aEvent.data, aEventType, `check received message ${aEvent.data}`);
+      aResolve();
+    }, { once: true });
+  });
+}
+
+let iframe = document.getElementById("target");
+
+add_setup(async function() {
+  await SimpleTest.promiseFocus();
+  await SpecialPowers.pushPrefEnv({ set: [["test.events.async.enabled", true]] });
+  disableNonTestMouseEvents(true);
+  SimpleTest.registerCleanupFunction(() => {
+    disableNonTestMouseEvents(false);
+  });
+
+  iframe.src = "http://example.com/tests/dom/events/test/file_empty.html";
+  await waitForMessage("ready");
+
+  await SpecialPowers.spawn(iframe, [], () => {
+    let handler = function(e) {
+      content.parent.postMessage(e.type, "*");
+    };
+    content.document.addEventListener("mousedown", handler);
+    content.document.addEventListener("mousemove", handler);
+    content.document.addEventListener("mouseup", handler);
+  });
+
+  await waitUntilApzStable();
+});
+
+add_task(async function testMouseCaptureOnXoriginIframe() {
+  let unexpectedHandler = function(e) {
+    ok(false, `receive unexpected ${e.type} event`);
+  };
+  document.addEventListener("mousedown", unexpectedHandler);
+  document.addEventListener("mousemove", unexpectedHandler);
+  document.addEventListener("mouseup", unexpectedHandler);
+
+  synthesizeMouseAtCenter(iframe, { type: "mousedown" });
+  await waitForMessage("mousedown");
+
+  synthesizeMouse(iframe, 200, 200, { type: "mousemove" });
+  await waitForMessage("mousemove");
+
+  synthesizeMouse(iframe, 200, 200, { type: "mouseup" });
+  await waitForMessage("mouseup");
+});
+</script>