gecko-dev/devtools/server/tests/browser/browser_animation_setPlayba...

50 строки
1.7 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Check that a player's playbackRate can be changed, and that multiple players
// can have their rates changed at the same time.
add_task(async function() {
const { target, walker, animations } = await initAnimationsFrontForUrl(
MAIN_DOMAIN + "animation.html"
);
info("Retrieve an animated node");
let node = await walker.querySelector(walker.rootNode, ".simple-animation");
info("Retrieve the animation player for the node");
const [player] = await animations.getAnimationPlayersForNode(node);
info("Change the rate to 10");
await animations.setPlaybackRates([player], 10);
info("Query the state again");
let state = await player.getCurrentState();
is(state.playbackRate, 10, "The playbackRate was updated");
info("Change the rate back to 1");
await animations.setPlaybackRates([player], 1);
info("Query the state again");
state = await player.getCurrentState();
is(state.playbackRate, 1, "The playbackRate was changed back");
info("Retrieve several animation players and set their rates");
node = await walker.querySelector(walker.rootNode, "body");
const players = await animations.getAnimationPlayersForNode(node);
info("Change all animations in <body> to .5 rate");
await animations.setPlaybackRates(players, 0.5);
info("Query their states and check they are correct");
for (const animPlayer of players) {
const animPlayerState = await animPlayer.getCurrentState();
is(animPlayerState.playbackRate, 0.5, "The playbackRate was updated");
}
await target.destroy();
gBrowser.removeCurrentTab();
});