1 files changed, 60 insertions, 0 deletions
diff --git a/dom/tests/mochitest/bugs/utils_bug260264.js b/dom/tests/mochitest/bugs/utils_bug260264.js
new file mode 100644
index 000000000..07b98ea7e
--- /dev/null
+++ b/dom/tests/mochitest/bugs/utils_bug260264.js
@@ -0,0 +1,60 @@
+const ALLOW_ACTION = SpecialPowers.Ci.nsIPermissionManager.ALLOW_ACTION;
+const DENY_ACTION = SpecialPowers.Ci.nsIPermissionManager.DENY_ACTION;
+const UNKNOWN_ACTION = SpecialPowers.Ci.nsIPermissionManager.UNKNOWN_ACTION;
+const PROMPT_ACTION = SpecialPowers.Ci.nsIPermissionManager.PROMPT_ACTION;
+
+/**
+ * Dispatches |handler| to |element|, as if fired in response to |event|.
+ */
+function send(element, event, handler) {
+  function unique_handler() { return handler.apply(this, arguments) }
+  element.addEventListener(event, unique_handler, false);
+  try { sendMouseEvent({ type: event }, element.id) }
+  finally { element.removeEventListener(event, unique_handler, false) }
+}
+
+/**
+ * Because it's not nice to leave popup windows open after the tests are
+ * finished, we need a foolproof way to close some/all window.opened windows.
+ */
+(function(originalOpen) {
+  var wins = [];
+  (window.open = function() {
+    var win = originalOpen.apply(window, arguments);
+    if (win)
+      wins[wins.length] = win;
+    return win;
+  }).close = function(n) {
+    var promises = [];
+    if (arguments.length < 1)
+      n = wins.length;
+    while (n --> 0) {
+      var win = wins.pop();
+      if (win) {
+        let openedWindowID =
+          SpecialPowers.getDOMWindowUtils(win).outerWindowID;
+        promises.push((function(openedWindow) {
+          return new Promise(function(resolve) {
+            let observer = {
+              observe(subject) {
+                let wrapped = SpecialPowers.wrap(subject);
+                let winID = wrapped.QueryInterface(SpecialPowers.Ci.nsISupportsPRUint64).data;
+                if (winID == openedWindowID) {
+                  SpecialPowers.removeObserver(observer, "outer-window-destroyed");
+                  SimpleTest.executeSoon(resolve);
+                }
+              }
+            };
+
+            SpecialPowers.addObserver(observer, "outer-window-destroyed", false);
+          });
+        })(win));
+        win.close();
+      } else {
+        promises.push(Promise.resolve());
+        break;
+      }
+    }
+    return Promise.all(promises);
+  };
+})(window.open);