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|
<!DOCTYPE html>
<meta charset=utf-8>
<title>Test chrome-only MutationObserver animation notifications</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
<script src="../testcommon.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
<style>
@keyframes anim {
to { transform: translate(100px); }
}
@keyframes anotherAnim {
to { transform: translate(0px); }
}
#target {
width: 100px;
height: 100px;
background-color: yellow;
line-height: 16px;
}
</style>
<div id=container><div id=target></div></div>
<script>
var div = document.getElementById("target");
var gRecords = [];
var gObserver = new MutationObserver(function(newRecords) {
gRecords.push(...newRecords);
});
// Asynchronous testing framework based on layout/style/test/animation_utils.js.
var gTests = [];
var gCurrentTestName;
function addAsyncAnimTest(aName, aOptions, aTestGenerator) {
aTestGenerator.testName = aName;
aTestGenerator.options = aOptions || {};
gTests.push(aTestGenerator);
}
function runAsyncTest(aTestGenerator) {
return waitForFrame().then(function() {
var generator;
function step(arg) {
var next;
try {
next = generator.next(arg);
} catch (e) {
return Promise.reject(e);
}
if (next.done) {
return Promise.resolve(next.value);
} else {
return Promise.resolve(next.value).then(step);
}
}
var subtree = aTestGenerator.options.subtree;
gCurrentTestName = aTestGenerator.testName;
if (subtree) {
gCurrentTestName += ":subtree";
}
gRecords = [];
gObserver.disconnect();
gObserver.observe(aTestGenerator.options.observe,
{ animations: true, subtree: subtree});
generator = aTestGenerator();
return step();
});
};
function runAllAsyncTests() {
return gTests.reduce(function(sequence, test) {
return sequence.then(() => runAsyncTest(test));
}, Promise.resolve());
}
// Wrap is and ok with versions that prepend the current sub-test name
// to the assertion description.
var old_is = is, old_ok = ok;
is = function(a, b, message) {
if (gCurrentTestName && message) {
message = `[${gCurrentTestName}] ${message}`;
}
old_is(a, b, message);
}
ok = function(a, message) {
if (gCurrentTestName && message) {
message = `[${gCurrentTestName}] ${message}`;
}
old_ok(a, message);
}
// Adds an event listener and returns a Promise that is resolved when the
// event listener is called.
function await_event(aElement, aEventName) {
return new Promise(function(aResolve) {
function listener(aEvent) {
aElement.removeEventListener(aEventName, listener);
aResolve();
}
aElement.addEventListener(aEventName, listener, false);
});
}
function assert_record_list(actual, expected, desc, index, listName) {
is(actual.length, expected.length, `${desc} - record[${index}].${listName} length`);
if (actual.length != expected.length) {
return;
}
for (var i = 0; i < actual.length; i++) {
ok(actual.indexOf(expected[i]) != -1,
`${desc} - record[${index}].${listName} contains expected Animation`);
}
}
function assert_records(expected, desc) {
var records = gRecords;
gRecords = [];
is(records.length, expected.length, `${desc} - number of records`);
if (records.length != expected.length) {
return;
}
for (var i = 0; i < records.length; i++) {
assert_record_list(records[i].addedAnimations, expected[i].added, desc, i, "addedAnimations");
assert_record_list(records[i].changedAnimations, expected[i].changed, desc, i, "changedAnimations");
assert_record_list(records[i].removedAnimations, expected[i].removed, desc, i, "removedAnimations");
}
}
// -- Tests ------------------------------------------------------------------
// We run all tests first targeting the div and observing the div, then again
// targeting the div and observing its parent while using the subtree:true
// MutationObserver option.
[
{ observe: div, target: div, subtree: false },
{ observe: div.parentNode, target: div, subtree: true },
].forEach(function(aOptions) {
var e = aOptions.target;
// Test that starting a single transition that completes normally
// dispatches an added notification and then a removed notification.
addAsyncAnimTest("single_transition", aOptions, function*() {
// Start a transition.
e.style = "transition: background-color 100s; background-color: lime;";
// Register for the end of the transition.
var transitionEnd = await_event(e, "transitionend");
// The transition should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after transition start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after transition start");
// Advance until near the end of the transition, then wait for it to finish.
animations[0].currentTime = 99900;
yield transitionEnd;
// After the transition has finished, the Animation should disappear.
is(e.getAnimations().length, 0,
"getAnimations().length after transition end");
// Wait for the change MutationRecord for seeking the Animation to be
// delivered, followed by the the removal MutationRecord.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] },
{ added: [], changed: [], removed: animations }],
"records after transition end");
e.style = "";
});
// Test that starting a single transition that is cancelled by resetting
// the transition-property property dispatches an added notification and
// then a removed notification.
addAsyncAnimTest("single_transition_cancelled_property", aOptions, function*() {
// Start a long transition.
e.style = "transition: background-color 100s; background-color: lime;";
// The transition should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after transition start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after transition start");
// Cancel the transition by setting transition-property.
e.style.transitionProperty = "none";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after transition end");
e.style = "";
});
// Test that starting a single transition that is cancelled by setting
// style to the currently animated value dispatches an added
// notification and then a removed notification.
addAsyncAnimTest("single_transition_cancelled_value", aOptions, function*() {
// Start a long transition with a predictable value.
e.style = "transition: background-color 100s steps(2, end) -51s; background-color: lime;";
// The transition should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after transition start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after transition start");
// Cancel the transition by setting the current animation value.
var value = "rgb(128, 255, 0)";
is(getComputedStyle(e).backgroundColor, value, "half-way transition value");
e.style.backgroundColor = value;
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after transition end");
e.style = "";
});
// Test that starting a single transition that is cancelled by setting
// style to a non-interpolable value dispatches an added notification
// and then a removed notification.
addAsyncAnimTest("single_transition_cancelled_noninterpolable", aOptions, function*() {
// Start a long transition.
e.style = "transition: line-height 100s; line-height: 100px;";
// The transition should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after transition start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after transition start");
// Cancel the transition by setting line-height to a non-interpolable value.
e.style.lineHeight = "normal";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after transition end");
e.style = "";
});
// Test that starting a single transition and then reversing it
// dispatches an added notification, then a simultaneous removed and
// added notification, then a removed notification once finished.
addAsyncAnimTest("single_transition_reversed", aOptions, function*() {
// Start a long transition.
e.style = "transition: background-color 100s step-start; background-color: lime;";
// The transition should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after transition start");
var firstAnimation = animations[0];
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: [firstAnimation], changed: [], removed: [] }],
"records after transition start");
// Wait for the Animation to be playing, then seek well into
// the transition.
yield firstAnimation.ready;
firstAnimation.currentTime = 50 * MS_PER_SEC;
// Reverse the transition by setting the background-color back to its
// original value.
e.style.backgroundColor = "yellow";
// The reversal should cause the creation of a new Animation.
animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after transition reversal");
var secondAnimation = animations[0];
ok(firstAnimation != secondAnimation,
"second Animation should be different from the first");
// Wait for the change Mutation record from seeking the first animation
// to be delivered, followed by a subsequent MutationRecord for the removal
// of the original Animation and the addition of the new Animation.
yield waitForFrame();
assert_records([{ added: [], changed: [firstAnimation], removed: [] },
{ added: [secondAnimation], changed: [],
removed: [firstAnimation] }],
"records after transition reversal");
// Cancel the transition.
e.style.transitionProperty = "none";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: [secondAnimation] }],
"records after transition end");
e.style = "";
});
// Test that multiple transitions starting and ending on an element
// at the same time get batched up into a single MutationRecord.
addAsyncAnimTest("multiple_transitions", aOptions, function*() {
// Start three long transitions.
e.style = "transition-duration: 100s; " +
"transition-property: color, background-color, line-height; " +
"color: blue; background-color: lime; line-height: 24px;";
// The transitions should cause the creation of three Animations.
var animations = e.getAnimations();
is(animations.length, 3, "getAnimations().length after transition starts");
// Wait for the single MutationRecord for the Animation additions to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after transition starts");
// Wait for the Animations to get going.
yield animations[0].ready;
is(animations.filter(p => p.playState == "running").length, 3,
"number of running Animations");
// Seek well into each animation.
animations.forEach(p => p.currentTime = 50 * MS_PER_SEC);
// Prepare the set of expected change MutationRecords, one for each
// animation that was seeked.
var seekRecords = animations.map(
p => ({ added: [], changed: [p], removed: [] })
);
// Cancel one of the transitions by setting transition-property.
e.style.transitionProperty = "background-color, line-height";
var colorAnimation = animations.filter(p => p.playState != "running");
var otherAnimations = animations.filter(p => p.playState == "running");
is(colorAnimation.length, 1,
"number of non-running Animations after cancelling one");
is(otherAnimations.length, 2,
"number of running Animations after cancelling one");
// Wait for the MutationRecords to be delivered: one for each animation
// that was seeked, followed by one for the removal of the color animation.
yield waitForFrame();
assert_records(seekRecords.concat(
{ added: [], changed: [], removed: colorAnimation }),
"records after color transition end");
// Cancel the remaining transitions.
e.style.transitionProperty = "none";
// Wait for the MutationRecord for the other two Animation
// removals to be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: otherAnimations }],
"records after other transition ends");
e.style = "";
});
// Test that starting a single animation that completes normally
// dispatches an added notification and then a removed notification.
addAsyncAnimTest("single_animation", aOptions, function*() {
// Start an animation.
e.style = "animation: anim 100s;";
// Register for the end of the animation.
var animationEnd = await_event(e, "animationend");
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Advance until near the end of the animation, then wait for it to finish.
animations[0].currentTime = 99900;
yield animationEnd;
// After the animation has finished, the Animation should disappear.
is(e.getAnimations().length, 0,
"getAnimations().length after animation end");
// Wait for the change MutationRecord from seeking the Animation to
// be delivered, followed by a further MutationRecord for the Animation
// removal.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] },
{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
// Test that starting a single animation that is cancelled by resetting
// the animation-name property dispatches an added notification and
// then a removed notification.
addAsyncAnimTest("single_animation_cancelled_name", aOptions, function*() {
// Start a long animation.
e.style = "animation: anim 100s;";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Cancel the animation by setting animation-name.
e.style.animationName = "none";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
// Test that starting a single animation that is cancelled by updating
// the animation-duration property dispatches an added notification and
// then a removed notification.
addAsyncAnimTest("single_animation_cancelled_duration", aOptions, function*() {
// Start a long animation.
e.style = "animation: anim 100s;";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Advance the animation by a second.
animations[0].currentTime += 1 * MS_PER_SEC;
// Cancel the animation by setting animation-duration to a value less
// than a second.
e.style.animationDuration = "0.1s";
// Wait for the change MutationRecord from seeking the Animation to
// be delivered, followed by a further MutationRecord for the Animation
// removal.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] },
{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
// Test that starting a single animation that is cancelled by updating
// the animation-delay property dispatches an added notification and
// then a removed notification.
addAsyncAnimTest("single_animation_cancelled_delay", aOptions, function*() {
// Start a long animation.
e.style = "animation: anim 100s;";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Cancel the animation by setting animation-delay.
e.style.animationDelay = "-200s";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
// Test that starting a single animation that is cancelled by updating
// the animation-fill-mode property dispatches an added notification and
// then a removed notification.
addAsyncAnimTest("single_animation_cancelled_fill", aOptions, function*() {
// Start a short, filled animation.
e.style = "animation: anim 100s forwards;";
// Register for the end of the animation.
var animationEnd = await_event(e, "animationend");
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Advance until near the end of the animation, then wait for it to finish.
animations[0].currentTime = 99900;
yield animationEnd;
// The only MutationRecord at this point should be the change from
// seeking the Animation.
assert_records([{ added: [], changed: animations, removed: [] }],
"records after animation starts filling");
// Cancel the animation by setting animation-fill-mode.
e.style.animationFillMode = "none";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
// Test that starting a single animation that is cancelled by updating
// the animation-iteration-count property dispatches an added notification
// and then a removed notification.
addAsyncAnimTest("single_animation_cancelled_iteration_count",
aOptions, function*() {
// Start a short, repeated animation.
e.style = "animation: anim 0.5s infinite;";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Advance the animation until we are past the first iteration.
animations[0].currentTime += 1 * MS_PER_SEC;
// The only MutationRecord at this point should be the change from
// seeking the Animation.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] }],
"records after seeking animations");
// Cancel the animation by setting animation-iteration-count.
e.style.animationIterationCount = "1";
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
// Test that updating an animation property dispatches a changed notification.
[
{ name: "duration", prop: "animationDuration", val: "200s" },
{ name: "timing", prop: "animationTimingFunction", val: "linear" },
{ name: "iteration", prop: "animationIterationCount", val: "2" },
{ name: "direction", prop: "animationDirection", val: "reverse" },
{ name: "state", prop: "animationPlayState", val: "paused" },
{ name: "delay", prop: "animationDelay", val: "-1s" },
{ name: "fill", prop: "animationFillMode", val: "both" },
].forEach(function(aChangeTest) {
addAsyncAnimTest(`single_animation_change_${aChangeTest.name}`, aOptions, function*() {
// Start a long animation.
e.style = "animation: anim 100s;";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Change a property of the animation such that it keeps running.
e.style[aChangeTest.prop] = aChangeTest.val;
// Wait for the single MutationRecord for the Animation change to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] }],
"records after animation change");
// Cancel the animation.
e.style.animationName = "none";
// Wait for the addition, change and removal MutationRecords to be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
});
// Test that calling finish() on a paused (but otherwise finished) animation
// dispatches a changed notification.
addAsyncAnimTest("finish_from_pause", aOptions, function*() {
// Start a long animation
e.style = "animation: anim 100s forwards";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is playing.
yield animations[0].ready;
// Finish and pause.
animations[0].finish();
animations[0].pause();
// Wait for the pause to complete.
yield animations[0].ready;
is(animations[0].playState, "paused",
"playState after finishing and pausing");
// We should have two MutationRecords for the Animation changes:
// one for the finish, one for the pause.
assert_records([{ added: [], changed: animations, removed: [] },
{ added: [], changed: animations, removed: [] }],
"records after finish() and pause()");
// Call finish() again.
animations[0].finish();
is(animations[0].playState, "finished",
"playState after finishing from paused state");
// Wait for the single MutationRecord for the Animation change to
// be delivered. Even though the currentTime does not change, the
// playState will change.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] }],
"records after finish() and pause()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling finish() on a pause-pending (but otherwise finished)
// animation dispatches a changed notification.
addAsyncAnimTest("finish_from_pause_pending", aOptions, function*() {
// Start a long animation
e.style = "animation: anim 100s forwards";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is playing.
yield animations[0].ready;
// Finish and pause.
animations[0].finish();
animations[0].pause();
is(animations[0].playState, "pending",
"playState after finishing and calling pause()");
// Call finish() again to abort the pause
animations[0].finish();
is(animations[0].playState, "finished",
"playState after finishing and calling pause()");
// Wait for three MutationRecords for the Animation changes to
// be delivered: one for each finish(), pause(), finish() operation.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] },
{ added: [], changed: animations, removed: [] },
{ added: [], changed: animations, removed: [] }],
"records after finish(), pause(), finish()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling play() on a paused Animation dispatches a changed
// notification.
addAsyncAnimTest("play", aOptions, function*() {
// Start a long, paused animation
e.style = "animation: anim 100s paused";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is ready
yield animations[0].ready;
// Play
animations[0].play();
// Wait for the single MutationRecord for the Animation change to
// be delivered.
yield animations[0].ready;
assert_records([{ added: [], changed: animations, removed: [] }],
"records after play()");
// Redundant play
animations[0].play();
// Wait to ensure no change is dispatched
yield waitForFrame();
assert_records([], "records after redundant play()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling play() on a finished Animation that fills forwards
// dispatches a changed notification.
addAsyncAnimTest("play_filling_forwards", aOptions, function*() {
// Start a long animation with a forwards fill
e.style = "animation: anim 100s forwards";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is ready
yield animations[0].ready;
// Seek to the end
animations[0].finish();
// Wait for the single MutationRecord for the Animation change to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] }],
"records after finish()");
// Since we are filling forwards, calling play() should produce a
// change record since the animation remains relevant.
animations[0].play();
// Wait for the single MutationRecord for the Animation change to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: animations, removed: [] }],
"records after play()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling play() on a finished Animation that does *not* fill
// forwards dispatches an addition notification.
addAsyncAnimTest("play_after_finish", aOptions, function*() {
// Start a long animation
e.style = "animation: anim 100s";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is ready
yield animations[0].ready;
// Seek to the end
animations[0].finish();
// Wait for the single MutationRecord for the Animation removal to
// be delivered.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after finish()");
// Since we are *not* filling forwards, calling play() is equivalent
// to creating a new animation since it becomes relevant again.
animations[0].play();
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after play()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling pause() on an Animation dispatches a changed
// notification.
addAsyncAnimTest("pause", aOptions, function*() {
// Start a long animation
e.style = "animation: anim 100s";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is ready
yield animations[0].ready;
// Pause
animations[0].pause();
// Wait for the single MutationRecord for the Animation change to
// be delivered.
yield animations[0].ready;
assert_records([{ added: [], changed: animations, removed: [] }],
"records after pause()");
// Redundant pause
animations[0].pause();
// Wait to ensure no change is dispatched
yield animations[0].ready;
assert_records([], "records after redundant pause()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling pause() on an Animation that is pause-pending
// does not dispatch an additional changed notification.
addAsyncAnimTest("pause_while_pause_pending", aOptions, function*() {
// Start a long animation
e.style = "animation: anim 100s";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is ready
yield animations[0].ready;
// Pause
animations[0].pause();
// We are now pause-pending, but pause again
animations[0].pause();
// We should only get a single change record
yield animations[0].ready;
assert_records([{ added: [], changed: animations, removed: [] }],
"records after pause()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that calling play() on an Animation that is pause-pending
// dispatches a changed notification.
addAsyncAnimTest("aborted_pause", aOptions, function*() {
// Start a long animation
e.style = "animation: anim 100s";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Wait until the animation is ready
yield animations[0].ready;
// Pause
animations[0].pause();
// We are now pause-pending. If we play() now, we will abort the pause
animations[0].play();
// We should get two change records
yield animations[0].ready;
assert_records([{ added: [], changed: animations, removed: [] },
{ added: [], changed: animations, removed: [] }],
"records after aborting a pause()");
// Cancel the animation.
e.style = "";
// Wait for the single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
});
// Test that a non-cancelling change to an animation followed immediately by a
// cancelling change will only send an animation removal notification.
addAsyncAnimTest("coalesce_change_cancel", aOptions, function*() {
// Start a long animation.
e.style = "animation: anim 100s;";
// The animation should cause the creation of a single Animation.
var animations = e.getAnimations();
is(animations.length, 1, "getAnimations().length after animation start");
// Wait for the single MutationRecord for the Animation addition to
// be delivered.
yield waitForFrame();
assert_records([{ added: animations, changed: [], removed: [] }],
"records after animation start");
// Update the animation's delay such that it is still running.
e.style.animationDelay = "-1s";
// Then cancel the animation by updating its duration.
e.style.animationDuration = "0.5s";
// We should get a single removal notification.
yield waitForFrame();
assert_records([{ added: [], changed: [], removed: animations }],
"records after animation end");
e.style = "";
});
});
addAsyncAnimTest("tree_ordering", { observe: div, subtree: true }, function*() {
// Add style for pseudo elements
var extraStyle = document.createElement('style');
document.head.appendChild(extraStyle);
var sheet = extraStyle.sheet;
var rules = { ".before::before": "animation: anim 100s;",
".after::after" : "animation: anim 100s, anim 100s;" };
for (var selector in rules) {
sheet.insertRule(selector + '{' + rules[selector] + '}',
sheet.cssRules.length);
}
// Create a tree with two children:
//
// div
// (::before)
// (::after)
// / \
// childA childB(::before)
var childA = document.createElement("div");
var childB = document.createElement("div");
div.appendChild(childA);
div.appendChild(childB);
// Start an animation on each (using order: childB, div, childA)
//
// We include multiple animations on some nodes so that we can test batching
// works as expected later in this test.
childB.style = "animation: anim 100s";
div.style = "animation: anim 100s, anim 100s, anim 100s";
childA.style = "animation: anim 100s, anim 100s";
// Start animations targeting to pseudo element of div and childB.
childB.classList.add("before");
div.classList.add("after");
div.classList.add("before");
// Check all animations we have in this document
var docAnims = document.getAnimations();
is(docAnims.length, 10, "total animations");
var divAnimations = div.getAnimations();
var childAAnimations = childA.getAnimations();
var childBAnimations = childB.getAnimations();
var divBeforeAnimations =
[ for (x of docAnims) if (x.effect.target.parentElement == div &&
x.effect.target.type == "::before") x ];
var divAfterAnimations =
[ for (x of docAnims) if (x.effect.target.parentElement == div &&
x.effect.target.type == "::after") x ];
var childBPseudoAnimations =
[ for (x of docAnims) if (x.effect.target.parentElement == childB) x ];
// The order in which we get the corresponding records is currently
// based on the order we visit these nodes when updating styles.
//
// That is because we don't do any document-level batching of animation
// mutation records when we flush styles. We may introduce that in the
// future but for now all we are interested in testing here is that the order
// these records are dispatched is consistent between runs.
//
// We currently expect to get records in order div::after, childA, childB,
// childB::before, div, div::before
yield waitForFrame();
assert_records([{ added: divAfterAnimations, changed: [], removed: [] },
{ added: childAAnimations, changed: [], removed: [] },
{ added: childBAnimations, changed: [], removed: [] },
{ added: childBPseudoAnimations, changed: [], removed: [] },
{ added: divAnimations, changed: [], removed: [] },
{ added: divBeforeAnimations, changed: [], removed: [] }],
"records after simultaneous animation start");
// The one case where we *do* currently perform document-level (or actually
// timeline-level) batching is when animations are updated from a refresh
// driver tick. In particular, this means that when animations finish
// naturally the removed records should be dispatched according to the
// position of the elements in the tree.
// First, flatten the set of animations. we put the animations targeting to
// pseudo elements last. (Actually, we don't care the order in the list.)
var animations = [ ...divAnimations,
...childAAnimations,
...childBAnimations,
...divBeforeAnimations,
...divAfterAnimations,
...childBPseudoAnimations ];
// Fast-forward to *just* before the end of the animation.
animations.forEach(animation => animation.currentTime = 99999);
// Prepare the set of expected change MutationRecords, one for each
// animation that was seeked.
var seekRecords = animations.map(
p => ({ added: [], changed: [p], removed: [] })
);
yield await_event(div, "animationend");
// After the changed notifications, which will be dispatched in the order that
// the animations were seeked, we should get removal MutationRecords in order
// (div, div::before, div::after), childA, (childB, childB::before).
// Note: The animations targeting to the pseudo element are appended after
// the animations of its parent element.
divAnimations = [ ...divAnimations,
...divBeforeAnimations,
...divAfterAnimations ];
childBAnimations = [ ...childBAnimations, ...childBPseudoAnimations ];
assert_records(seekRecords.concat(
{ added: [], changed: [], removed: divAnimations },
{ added: [], changed: [], removed: childAAnimations },
{ added: [], changed: [], removed: childBAnimations }),
"records after finishing");
// Clean up
div.classList.remove("before");
div.classList.remove("after");
div.style = "";
childA.remove();
childB.remove();
extraStyle.remove();
});
// Run the tests.
SimpleTest.requestLongerTimeout(2);
SimpleTest.waitForExplicitFinish();
runAllAsyncTests().then(function() {
SimpleTest.finish();
}, function(aError) {
ok(false, "Something failed: " + aError);
});
</script>
|
