browser_isSynthetic.js

Enable keyboard shortcuts

function LocationChangeListener(browser) {

  this.browser = browser;

  browser.addProgressListener(this, Ci.nsIWebProgress.NOTIFY_LOCATION);

LocationChangeListener.prototype = {

  wasSynthetic: false,

  browser: null,

  destroy() {

    this.browser.removeProgressListener(this);

},

  onLocationChange() {

    this.wasSynthetic = this.browser.isSyntheticDocument;

},

  QueryInterface: ChromeUtils.generateQI([

    "nsIWebProgressListener",

    "nsISupportsWeakReference",

]),

};

const FILES = gTestPath

  .replace("browser_isSynthetic.js", "")

  .replace("chrome://mochitests/content/", "http://example.com/");

function waitForPageShow(browser) {

  return BrowserTestUtils.waitForContentEvent(browser, "pageshow", true);

add_task(async function () {

  let tab = BrowserTestUtils.addTab(gBrowser, "about:blank");

  let browser = tab.linkedBrowser;

  await BrowserTestUtils.browserLoaded(browser);

  let listener = new LocationChangeListener(browser);

  is(browser.isSyntheticDocument, false, "Should not be synthetic");

  let loadPromise = waitForPageShow(browser);

  BrowserTestUtils.startLoadingURIString(

    browser,

    "data:text/html;charset=utf-8,<html/>"

);

  await loadPromise;

  is(listener.wasSynthetic, false, "Should not be synthetic");

  is(browser.isSyntheticDocument, false, "Should not be synthetic");

  loadPromise = waitForPageShow(browser);

  BrowserTestUtils.startLoadingURIString(browser, FILES + "empty.png");

  await loadPromise;

  is(listener.wasSynthetic, true, "Should be synthetic");

  is(browser.isSyntheticDocument, true, "Should be synthetic");

  loadPromise = waitForPageShow(browser);

  browser.goBack();

  await loadPromise;

  is(listener.wasSynthetic, false, "Should not be synthetic");

  is(browser.isSyntheticDocument, false, "Should not be synthetic");

  loadPromise = waitForPageShow(browser);

  browser.goForward();

  await loadPromise;

  is(listener.wasSynthetic, true, "Should be synthetic");

  is(browser.isSyntheticDocument, true, "Should be synthetic");

  listener.destroy();

  gBrowser.removeTab(tab);

});