gecko-dev/dom/browser-element/mochitest/browserElement_CloseApp.js

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

// Bug 789392 - Test that apps frames can trigger mozbrowserclose by calling
// window.close(), but browser frames cannot.
"use strict";

SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
SpecialPowers.addPermission("embed-apps", true, window.document);

addEventListener('unload', function() {
  SpecialPowers.removePermission("embed-apps", window.document);
});

function runTest() {
  // Our app frame and browser frame load the same content.  That content calls
  // window.close() and then alert().  We should get a mozbrowserclose event on
  // the app frame before the mozbrowsershowmodalprompt, but not on the browser
  // frame.

  var appFrame = document.createElement('iframe');
  SpecialPowers.wrap(appFrame).mozbrowser = true;
  appFrame.setAttribute('mozapp', 'http://example.org/manifest.webapp');

  var browserFrame = document.createElement('iframe');
  SpecialPowers.wrap(browserFrame).mozbrowser = true;

  var gotAppFrameClose = false;
  appFrame.addEventListener('mozbrowserclose', function() {
    ok(true, "Got close from app frame.");
    gotAppFrameClose = true;
  });

  var gotAppFrameAlert = false;
  appFrame.addEventListener('mozbrowsershowmodalprompt', function() {
    ok(gotAppFrameClose, "Should have gotten app frame close by now.");
    ok(!gotAppFrameAlert, "Just one alert from the app frame.");
    gotAppFrameAlert = true;
    if (gotBrowserFrameAlert && gotAppFrameAlert) {
      SimpleTest.finish();
    }
  });

  browserFrame.addEventListener('mozbrowserclose', function() {
    ok(false, "Got close from browser frame.");
  });

  var gotBrowserFrameAlert = false;
  browserFrame.addEventListener('mozbrowsershowmodalprompt', function() {
    ok(!gotBrowserFrameAlert, "Just one browser frame alert.");
    gotBrowserFrameAlert = true;
    if (gotBrowserFrameAlert && gotAppFrameAlert) {
      SimpleTest.finish();
    }
  });

  document.body.appendChild(appFrame);
  document.body.appendChild(browserFrame);

  appFrame.src = 'http://example.org/tests/dom/browser-element/mochitest/file_browserElement_CloseApp.html';
  browserFrame.src = 'http://example.org/tests/dom/browser-element/mochitest/file_browserElement_CloseApp.html';
}

// The test harness sets dom.allow_scripts_to_close_windows to true (as of
// writing, anyway).  But that means that browser tabs can close themselves,
// which is what we want to test /can't/ happen!   For the purposes of this
// test (and normal browser operation), this pref should be false.
addEventListener('testready', function() {
  SpecialPowers.pushPrefEnv({'set': [['dom.allow_scripts_to_close_windows', false]]}, runTest);
});