1 files changed, 72 insertions, 0 deletions
diff --git a/dom/base/test/mozbrowser_api_utils.js b/dom/base/test/mozbrowser_api_utils.js
new file mode 100644
index 000000000..92b080939
--- /dev/null
+++ b/dom/base/test/mozbrowser_api_utils.js
@@ -0,0 +1,72 @@
+const FRAME_URL = "http://example.org/";
+
+const METHODS = {
+  setVisible: {},
+  getVisible: {},
+  setActive: {},
+  getActive: {},
+  addNextPaintListener: {},
+  removeNextPaintListener: {},
+  sendMouseEvent: {},
+  sendTouchEvent: {},
+  goBack: {},
+  goForward: {},
+  reload: {},
+  stop: {},
+  download: {},
+  purgeHistory: {},
+  getScreenshot: {},
+  zoom: {},
+  getCanGoBack: {},
+  getCanGoForward: {},
+  getContentDimensions: {},
+  setInputMethodActive: {},
+  findAll: {},
+  findNext: {},
+  clearMatch: {},
+  executeScript: {},
+  getWebManifest: {},
+  mute: {},
+  unmute: {},
+  getMuted: {},
+  setVolume: {},
+  getVolume: {},
+};
+
+const ATTRIBUTES = [
+  "allowedAudioChannels",
+];
+
+function once(target, eventName, useCapture = false) {
+  info("Waiting for event: '" + JSON.stringify(eventName) + "' on " + target + ".");
+
+  return new Promise(resolve => {
+    for (let [add, remove] of [
+      ["addEventListener", "removeEventListener"],
+      ["addMessageListener", "removeMessageListener"],
+    ]) {
+      if ((add in target) && (remove in target)) {
+        eventName.forEach(evName => {
+          target[add](evName, function onEvent(...aArgs) {
+            info("Got event: '" + evName + "' on " + target + ".");
+            target[remove](evName, onEvent, useCapture);
+            resolve(aArgs);
+          }, useCapture);
+	});
+        break;
+      }
+    }
+  });
+}
+
+function* loadFrame(attributes = {}) {
+  let iframe = document.createElement("iframe");
+  iframe.setAttribute("src", FRAME_URL);
+  for (let key in attributes) {
+    iframe.setAttribute(key, attributes[key]);
+  }
+  let loaded = once(iframe, [ "load", "mozbrowserloadend" ]);
+  document.body.appendChild(iframe);
+  yield loaded;
+  return iframe;
+}