/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

/**
 * Recursively compare two objects and check that every property of expectedObj has the same value
 * on actualObj.
 */
function isSubObjectOf(expectedObj, actualObj, name) {
  for (let prop in expectedObj) {
    if (typeof expectedObj[prop] == 'function')
      continue;
    if (expectedObj[prop] instanceof Object) {
      is(actualObj[prop].length, expectedObj[prop].length, name + "[" + prop + "]");
      isSubObjectOf(expectedObj[prop], actualObj[prop], name + "[" + prop + "]");
    } else {
      is(actualObj[prop], expectedObj[prop], name + "[" + prop + "]");
    }
  }
}

function waitForPopupShown(aPopupId, aCallback) {
  let popup = document.getElementById(aPopupId);
  info("waitForPopupShown: got popup: " + popup.id);
  function onPopupShown() {
    info("onPopupShown");
    removePopupShownListener();
    SimpleTest.executeSoon(aCallback);
  }
  function removePopupShownListener() {
    popup.removeEventListener("popupshown", onPopupShown);
  }
  popup.addEventListener("popupshown", onPopupShown);
  registerCleanupFunction(removePopupShownListener);
}

function waitForBrowserContextMenu(aCallback) {
  waitForPopupShown(gBrowser.selectedBrowser.contextMenu, aCallback);
}

function doOnloadOnce(aCallback) {
  function doOnloadOnceListener(aEvent) {
    info("doOnloadOnce: " + aEvent.originalTarget.location);
    removeDoOnloadOnceListener();
    aCallback(aEvent);
  }
  function removeDoOnloadOnceListener() {
    gBrowser.removeEventListener("DOMContentLoaded", doOnloadOnceListener);
  }
  gBrowser.addEventListener("DOMContentLoaded", doOnloadOnceListener);
  registerCleanupFunction(removeDoOnloadOnceListener);
}