tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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browser_fullscreen_keydown_reservation.js (3237B)

      1 /* Any copyright is dedicated to the Public Domain.
      2   http://creativecommons.org/publicdomain/zero/1.0/ */
      3 
      4 "use strict";
      5 
      6 // This test verifies that whether shortcut keys of toggling fullscreen modes
      7 // are reserved.
      8 add_task(async function test_keydown_event_reservation_toggling_fullscreen() {
      9  await SpecialPowers.pushPrefEnv({
     10    set: [
     11      ["test.wait300msAfterTabSwitch", true],
     12      ["full-screen-api.transition-duration.enter", "0 0"],
     13      ["full-screen-api.transition-duration.leave", "0 0"],
     14    ],
     15  });
     16 
     17  let shortcutKeys = [{ key: "KEY_F11", modifiers: {} }];
     18  if (navigator.platform.startsWith("Mac")) {
     19    shortcutKeys.push({
     20      key: "f",
     21      modifiers: { metaKey: true, ctrlKey: true },
     22    });
     23    shortcutKeys.push({
     24      key: "F",
     25      modifiers: { metaKey: true, shiftKey: true },
     26    });
     27  }
     28  function shortcutDescription(aShortcutKey) {
     29    return `${
     30      aShortcutKey.metaKey ? "Meta + " : ""
     31    }${aShortcutKey.shiftKey ? "Shift + " : ""}${aShortcutKey.ctrlKey ? "Ctrl + " : ""}${aShortcutKey.key.replace("KEY_", "")}`;
     32  }
     33  for (const shortcutKey of shortcutKeys) {
     34    const tab = await BrowserTestUtils.openNewForegroundTab(
     35      gBrowser,
     36      "https://example.org/browser/browser/base/content/test/fullscreen/fullscreen.html"
     37    );
     38 
     39    await SimpleTest.promiseFocus(tab.linkedBrowser);
     40 
     41    const fullScreenEntered = BrowserTestUtils.waitForEvent(
     42      window,
     43      "fullscreen"
     44    );
     45 
     46    await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
     47      content.wrappedJSObject.keydown = null;
     48      content.window.addEventListener("keydown", event => {
     49        switch (event.key) {
     50          case "Shift":
     51          case "Meta":
     52          case "Control":
     53            break;
     54          default:
     55            content.wrappedJSObject.keydown = event;
     56        }
     57      });
     58    });
     59 
     60    EventUtils.synthesizeKey(shortcutKey.key, shortcutKey.modifiers);
     61 
     62    info(
     63      `Waiting for entering the fullscreen mode with synthesizing ${shortcutDescription(
     64        shortcutKey
     65      )}...`
     66    );
     67    await fullScreenEntered;
     68 
     69    info("Retrieving the result...");
     70    Assert.ok(
     71      await SpecialPowers.spawn(
     72        tab.linkedBrowser,
     73        [],
     74        async () => !!content.wrappedJSObject.keydown
     75      ),
     76      `Entering the fullscreen mode with ${shortcutDescription(
     77        shortcutKey
     78      )} should cause "keydown" event`
     79    );
     80 
     81    const fullScreenExited = BrowserTestUtils.waitForEvent(
     82      window,
     83      "fullscreen"
     84    );
     85 
     86    await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
     87      content.wrappedJSObject.keydown = null;
     88    });
     89 
     90    EventUtils.synthesizeKey(shortcutKey.key, shortcutKey.modifiers);
     91 
     92    info(
     93      `Waiting for exiting from the fullscreen mode with synthesizing ${shortcutDescription(
     94        shortcutKey
     95      )}...`
     96    );
     97    await fullScreenExited;
     98 
     99    info("Retrieving the result...");
    100    Assert.ok(
    101      await SpecialPowers.spawn(
    102        tab.linkedBrowser,
    103        [],
    104        async () => !content.wrappedJSObject.keydown
    105      ),
    106      `Exiting from the fullscreen mode with ${shortcutDescription(
    107        shortcutKey
    108      )} should not cause "keydown" event`
    109    );
    110 
    111    BrowserTestUtils.removeTab(tab);
    112  }
    113 });