browser_toolbox_chrome_debugging_disabled.js

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that a toolbox can't debug a system principal page when

// devtools.chrome.enabled is locked to false.

const CHROME_ENABLED_PREF = "devtools.chrome.enabled";

function lockChromeEnabledPrefToFalse() {

  if (Services.prefs.prefIsLocked(CHROME_ENABLED_PREF)) {

    return;

  // lockPref locks the default value, so set the default rather than the user

  // value.

  const defaultBranch = Services.prefs.getDefaultBranch("");

  const defaultValue = defaultBranch.getBoolPref(CHROME_ENABLED_PREF);

  defaultBranch.setBoolPref(CHROME_ENABLED_PREF, false);

  Services.prefs.lockPref(CHROME_ENABLED_PREF);

  registerCleanupFunction(() => {

    Services.prefs.unlockPref(CHROME_ENABLED_PREF);

    defaultBranch.setBoolPref(CHROME_ENABLED_PREF, defaultValue);

});

add_task(async function test_unlocked_pref_allows_toolbox() {

  await pushPref(CHROME_ENABLED_PREF, false);

  const tab = await addTab("about:preferences");

  const toolbox = await openToolboxForTab(tab, "webconsole");

  ok(toolbox, "A toolbox opens when the pref is false but not locked");

  await toolbox.destroy();

  gBrowser.removeCurrentTab();

});

add_task(async function test_locked_pref_prevents_toolbox() {

  lockChromeEnabledPrefToFalse();

  const tab = await addTab("about:preferences");

  const toolbox = await gDevTools.showToolboxForTab(tab);

  is(toolbox, null, "No toolbox is opened");

  ok(!gDevTools.getToolboxForTab(tab), "No toolbox is registered for the tab");

  gBrowser.removeCurrentTab();

});

add_task(async function test_locked_pref_closes_toolbox_on_navigation() {

  lockChromeEnabledPrefToFalse();

  // about:robots loads in the parent process without a system principal.

  for (const url of ["data:text/html,<title>content</title>", "about:robots"]) {

    const tab = await addTab(url);

    const toolbox = await openToolboxForTab(tab, "webconsole");

    const onToolboxDestroyed = toolbox.once("destroyed");

    BrowserTestUtils.startLoadingURIString(

      tab.linkedBrowser,

      "about:preferences"

);

    await onToolboxDestroyed;

    ok(true, `The toolbox is closed when navigating from ${url}`);

    gBrowser.removeCurrentTab();

});