forked from mirrors/gecko-dev
640fe52298
MozReview-Commit-ID: F6xUXCgdRE4 --HG-- extra : rebase_source : 65de1b0aba412d9044b5196115f74276caa058f2
82 lines
3.2 KiB
JavaScript
82 lines
3.2 KiB
JavaScript
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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// When a transition finishes, no "removed" event is sent because it may still
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// be used, but when it restarts again (transitions back), then a new
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// AnimationPlayerFront should be sent, and the old one should be removed.
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add_task(async function() {
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const {client, walker, animations} =
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await initAnimationsFrontForUrl(MAIN_DOMAIN + "animation.html");
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info("Retrieve the test node");
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const node = await walker.querySelector(walker.rootNode, ".all-transitions");
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info("Retrieve the animation players for the node");
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const players = await animations.getAnimationPlayersForNode(node);
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is(players.length, 0, "The node has no animation players yet");
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info("Play a transition by adding the expand class, wait for mutations");
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let onMutations = expectMutationEvents(animations, 2);
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await ContentTask.spawn(gBrowser.selectedBrowser, {}, () => {
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const el = content.document.querySelector(".all-transitions");
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el.classList.add("expand");
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});
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let reportedMutations = await onMutations;
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is(reportedMutations.length, 2, "2 mutation events were received");
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is(reportedMutations[0].type, "added", "The first event was 'added'");
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is(reportedMutations[1].type, "added", "The second event was 'added'");
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info("Wait for the transitions to be finished");
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await waitForEnd(reportedMutations[0].player);
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await waitForEnd(reportedMutations[1].player);
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info("Play the transition back by removing the class, wait for mutations");
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onMutations = expectMutationEvents(animations, 4);
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await ContentTask.spawn(gBrowser.selectedBrowser, {}, () => {
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const el = content.document.querySelector(".all-transitions");
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el.classList.remove("expand");
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});
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reportedMutations = await onMutations;
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is(reportedMutations.length, 4, "4 new mutation events were received");
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is(reportedMutations.filter(m => m.type === "removed").length, 2,
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"2 'removed' events were sent (for the old transitions)");
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is(reportedMutations.filter(m => m.type === "added").length, 2,
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"2 'added' events were sent (for the new transitions)");
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await client.close();
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gBrowser.removeCurrentTab();
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});
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function expectMutationEvents(animationsFront, nbOfEvents) {
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return new Promise(resolve => {
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let reportedMutations = [];
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function onMutations(mutations) {
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reportedMutations = [...reportedMutations, ...mutations];
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info("Received " + reportedMutations.length + " mutation events, " +
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"expecting " + nbOfEvents);
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if (reportedMutations.length === nbOfEvents) {
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animationsFront.off("mutations", onMutations);
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resolve(reportedMutations);
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}
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}
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info("Start listening for mutation events from the AnimationsFront");
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animationsFront.on("mutations", onMutations);
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});
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}
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async function waitForEnd(animationFront) {
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let playState;
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while (playState !== "finished") {
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const state = await animationFront.getCurrentState();
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playState = state.playState;
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info("Wait for transition " + animationFront.state.name +
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" to finish, playState=" + playState);
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}
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}
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