tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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browser_onbeforeunload_only_after_interaction_in_frame.js (2761B)

      1 const { PromptTestUtils } = ChromeUtils.importESModule(
      2  "resource://testing-common/PromptTestUtils.sys.mjs"
      3 );
      4 
      5 function pageScript() {
      6  window.addEventListener(
      7    "beforeunload",
      8    function (event) {
      9      var str = "Some text that causes the beforeunload dialog to be shown";
     10      event.returnValue = str;
     11      return str;
     12    },
     13    true
     14  );
     15 }
     16 
     17 SpecialPowers.pushPrefEnv({
     18  set: [
     19    ["dom.require_user_interaction_for_beforeunload", true],
     20    ["security.allow_eval_with_system_principal", true],
     21  ],
     22 });
     23 
     24 const FRAME_URL =
     25  "data:text/html," + encodeURIComponent("<body>Just a frame</body>");
     26 
     27 const PAGE_URL =
     28  "data:text/html," +
     29  encodeURIComponent(
     30    "<iframe src='" +
     31      FRAME_URL +
     32      "'></iframe><script>(" +
     33      pageScript.toSource() +
     34      ")();</script>"
     35  );
     36 
     37 add_setup(async function () {
     38  await SpecialPowers.pushPrefEnv({
     39    set: [["test.wait300msAfterTabSwitch", true]],
     40  });
     41 });
     42 
     43 add_task(async function doClick() {
     44  // The onbeforeunload dialog should appear.
     45  let dialogPromise = PromptTestUtils.waitForPrompt(null, {
     46    modalType: Services.prompt.MODAL_TYPE_CONTENT,
     47    promptType: "confirmEx",
     48  });
     49 
     50  let openPagePromise = openPage(true);
     51  let dialog = await dialogPromise;
     52  Assert.ok(true, "Showed the beforeunload dialog.");
     53 
     54  await PromptTestUtils.handlePrompt(dialog, { buttonNumClick: 0 });
     55  await openPagePromise;
     56 });
     57 
     58 add_task(async function noClick() {
     59  // The onbeforeunload dialog should NOT appear.
     60  await openPage(false);
     61  info("If we time out here, then the dialog was shown...");
     62 });
     63 
     64 async function openPage(shouldClick) {
     65  // Open about:blank in a new tab.
     66  await BrowserTestUtils.withNewTab(
     67    { gBrowser, url: "about:blank" },
     68    async function (browser) {
     69      // Load the page.
     70      BrowserTestUtils.startLoadingURIString(browser, PAGE_URL);
     71      await BrowserTestUtils.browserLoaded(browser);
     72 
     73      let frameBC = browser.browsingContext.children[0];
     74      if (shouldClick) {
     75        await BrowserTestUtils.synthesizeMouse("body", 2, 2, {}, frameBC);
     76      }
     77      let hasInteractedWith = await SpecialPowers.spawn(
     78        frameBC,
     79        [],
     80        function () {
     81          return [
     82            content.document.hasBeenUserGestureActivated,
     83            content.document.hasBeenUserGestureActivated,
     84          ];
     85        }
     86      );
     87      is(
     88        shouldClick,
     89        hasInteractedWith[0],
     90        "Click should update parent interactivity state"
     91      );
     92      is(
     93        shouldClick,
     94        hasInteractedWith[1],
     95        "Click should update frame interactivity state"
     96      );
     97      // And then navigate away.
     98      BrowserTestUtils.startLoadingURIString(browser, "http://example.com/");
     99      await BrowserTestUtils.browserLoaded(browser);
    100    }
    101  );
    102 }