gecko-dev/browser/base/content/test/general/browser_tabs_isActive.js

/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */
/* eslint-disable mozilla/no-arbitrary-setTimeout */

// Test for the docshell active state of local and remote browsers.

const kTestPage =
  "https://example.org/browser/browser/base/content/test/general/dummy_page.html";

function promiseNewTabSwitched() {
  return new Promise(resolve => {
    gBrowser.addEventListener(
      "TabSwitchDone",
      function () {
        executeSoon(resolve);
      },
      { once: true }
    );
  });
}

function getParentTabState(aTab) {
  return aTab.linkedBrowser.docShellIsActive;
}

function getChildTabState(aTab) {
  return ContentTask.spawn(
    aTab.linkedBrowser,
    null,
    () => content.browsingContext.isActive
  );
}

function checkState(parentSide, childSide, value, message) {
  is(parentSide, value, message + " (parent side)");
  is(childSide, value, message + " (child side)");
}

function waitForMs(aMs) {
  return new Promise(resolve => {
    setTimeout(done, aMs);
    function done() {
      resolve(true);
    }
  });
}

add_task(async function () {
  let url = kTestPage;
  let originalTab = gBrowser.selectedTab; // test tab
  let newTab = BrowserTestUtils.addTab(gBrowser, url, { skipAnimation: true });
  let parentSide, childSide;

  // new tab added but not selected checks
  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    false,
    "newly added " + url + " tab is not active"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(parentSide, childSide, true, "original tab is active initially");

  // select the newly added tab and wait  for TabSwitchDone event
  let tabSwitchedPromise = promiseNewTabSwitched();
  gBrowser.selectedTab = newTab;
  await tabSwitchedPromise;

  if (Services.appinfo.browserTabsRemoteAutostart) {
    ok(
      newTab.linkedBrowser.isRemoteBrowser,
      "for testing we need a remote tab"
    );
  }

  // check active state of both tabs
  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    true,
    "newly added " + url + " tab is active after selection"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(
    parentSide,
    childSide,
    false,
    "original tab is not active while unselected"
  );

  // switch back to the original test tab and wait for TabSwitchDone event
  tabSwitchedPromise = promiseNewTabSwitched();
  gBrowser.selectedTab = originalTab;
  await tabSwitchedPromise;

  // check active state of both tabs
  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    false,
    "newly added " + url + " tab is not active after switch back"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(
    parentSide,
    childSide,
    true,
    "original tab is active again after switch back"
  );

  // switch to the new tab and wait for TabSwitchDone event
  tabSwitchedPromise = promiseNewTabSwitched();
  gBrowser.selectedTab = newTab;
  await tabSwitchedPromise;

  // check active state of both tabs
  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    true,
    "newly added " + url + " tab is not active after switch back"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(
    parentSide,
    childSide,
    false,
    "original tab is active again after switch back"
  );

  gBrowser.removeTab(newTab);
});

add_task(async function () {
  let url = "about:about";
  let originalTab = gBrowser.selectedTab; // test tab
  let newTab = BrowserTestUtils.addTab(gBrowser, url, { skipAnimation: true });
  let parentSide, childSide;

  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    false,
    "newly added " + url + " tab is not active"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(parentSide, childSide, true, "original tab is active initially");

  let tabSwitchedPromise = promiseNewTabSwitched();
  gBrowser.selectedTab = newTab;
  await tabSwitchedPromise;

  if (Services.appinfo.browserTabsRemoteAutostart) {
    ok(
      !newTab.linkedBrowser.isRemoteBrowser,
      "for testing we need a local tab"
    );
  }

  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    true,
    "newly added " + url + " tab is active after selection"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(
    parentSide,
    childSide,
    false,
    "original tab is not active while unselected"
  );

  tabSwitchedPromise = promiseNewTabSwitched();
  gBrowser.selectedTab = originalTab;
  await tabSwitchedPromise;

  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    false,
    "newly added " + url + " tab is not active after switch back"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(
    parentSide,
    childSide,
    true,
    "original tab is active again after switch back"
  );

  tabSwitchedPromise = promiseNewTabSwitched();
  gBrowser.selectedTab = newTab;
  await tabSwitchedPromise;

  parentSide = getParentTabState(newTab);
  childSide = await getChildTabState(newTab);
  checkState(
    parentSide,
    childSide,
    true,
    "newly added " + url + " tab is not active after switch back"
  );
  parentSide = getParentTabState(originalTab);
  childSide = await getChildTabState(originalTab);
  checkState(
    parentSide,
    childSide,
    false,
    "original tab is active again after switch back"
  );

  gBrowser.removeTab(newTab);
});