browser_animation_getSubTreeAnimations.js

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Check that the AnimationsActor can retrieve all animations inside a node's

// subtree (but not going into iframes).

const URL = MAIN_DOMAIN + "animation.html";

// Import inspector's shared head.

Services.scriptloader.loadSubScript(

  "chrome://mochitests/content/browser/devtools/client/inspector/test/shared-head.js",

  this

);

add_task(async function () {

  info("Creating a test document with 2 iframes containing animated nodes");

  const { inspector, target, walker, animations } =

    await initAnimationsFrontForUrl(

      "data:text/html;charset=utf-8," +

        "<iframe id='iframe' src='" +

        URL +

        "'></iframe>"

);

  info("Try retrieving all animations from the root doc's <body> node");

  const rootBody = await walker.querySelector(walker.rootNode, "body");

  let players = await animations.getAnimationPlayersForNode(rootBody);

  is(players.length, 0, "The node has no animation players");

  info("Retrieve all animations from the iframe's <body> node");

  const frameBody = await getNodeFrontInFrames(["#iframe", "body"], inspector);

  const animationsForFrame = await frameBody.targetFront.getFront("animations");

  players = await animationsForFrame.getAnimationPlayersForNode(frameBody);

  // Testing for a hard-coded number of animations here would intermittently

  // fail depending on how fast or slow the test is (indeed, the test page

  // contains short transitions, and delayed animations). So just make sure we

  // at least have the infinitely running animations.

  Assert.greaterOrEqual(

    players.length,

4,

    "All subtree animations were retrieved"

);

  await target.destroy();

  gBrowser.removeCurrentTab();

});