<!doctype html>
<meta charset=utf-8>
<title>Web Animations API: DocumentTimeline tests</title>
<script src="../testcommon.js"></script>
<iframe src="data:text/html;charset=utf-8," width="10" height="10" id="iframe"></iframe>
<iframe src="data:text/html;charset=utf-8,%3Chtml%20style%3D%22display%3Anone%22%3E%3C%2Fhtml%3E" width="10" height="10" id="hidden-iframe"></iframe>
<script>
'use strict';
test(function() {
assert_equals(document.timeline, document.timeline,
'document.timeline returns the same object every time');
var iframe = document.getElementById('iframe');
assert_not_equals(document.timeline, iframe.contentDocument.timeline,
'document.timeline returns a different object for each document');
assert_not_equals(iframe.contentDocument.timeline, null,
'document.timeline on an iframe is not null');
},
'document.timeline identity tests',
{
help: 'http://dev.w3.org/fxtf/web-animations/#the-document-timeline',
assert: [ 'Each document has a timeline called the document timeline' ],
author: 'Brian Birtles'
});
async_test(function(t) {
assert_true(document.timeline.currentTime > 0,
'document.timeline.currentTime is positive');
// document.timeline.currentTime should be set even before document
// load fires. We expect this code to be run before document load and hence
// the above assertion is sufficient.
// If the following assertion fails, this test needs to be redesigned.
assert_true(document.readyState !== 'complete',
'Test is running prior to document load');
// Test that the document timeline's current time is measured from
// navigationStart.
//
// We can't just compare document.timeline.currentTime to
// window.performance.now() because currentTime is only updated on a sample
// so we use requestAnimationFrame instead.
window.requestAnimationFrame(t.step_func(function(rafTime) {
assert_equals(document.timeline.currentTime, rafTime,
'document.timeline.currentTime matches' +
' requestAnimationFrame time');
t.done();
}));
},
'document.timeline.currentTime value tests',
{
help: [
'http://dev.w3.org/fxtf/web-animations/#the-global-clock',
'http://dev.w3.org/fxtf/web-animations/#the-document-timeline'
],
assert: [
'The global clock is a source of monotonically increasing time values',
'The time values of the document timeline are calculated as a fixed' +
' offset from the global clock',
'the zero time corresponds to the navigationStart moment',
'the time value of each document timeline must be equal to the time ' +
'passed to animation frame request callbacks for that browsing context'
],
author: 'Brian Birtles'
});
async_test(function(t) {
var valueAtStart = document.timeline.currentTime;
var timeAtStart = window.performance.now();
while (window.performance.now() - timeAtStart < 100) {
// Wait 100ms
}
assert_equals(document.timeline.currentTime, valueAtStart,
'document.timeline.currentTime does not change within a script block');
window.requestAnimationFrame(t.step_func(function() {
assert_true(document.timeline.currentTime > valueAtStart,
'document.timeline.currentTime increases between script blocks');
t.done();
}));
},
'document.timeline.currentTime liveness tests',
{
help: 'http://dev.w3.org/fxtf/web-animations/#script-execution-and-live-updates-to-the-model',
assert: [ 'The value returned by the currentTime attribute of a' +
' document timeline will not change within a script block' ],
author: 'Brian Birtles'
});
test(function() {
var hiddenIFrame = document.getElementById('hidden-iframe');
assert_equals(typeof hiddenIFrame.contentDocument.timeline.currentTime,
'number',
'currentTime of an initially hidden subframe\'s timeline is a number');
assert_true(hiddenIFrame.contentDocument.timeline.currentTime >= 0,
'currentTime of an initially hidden subframe\'s timeline is >= 0');
}, 'document.timeline.currentTime hidden subframe test');
async_test(function(t) {
var hiddenIFrame = document.getElementById('hidden-iframe');
// Don't run the test until after the iframe has completed loading or else the
// contentDocument may change.
var testToRunOnLoad = t.step_func(function() {
// Remove display:none
hiddenIFrame.style.display = 'block';
window.getComputedStyle(hiddenIFrame).display;
window.requestAnimationFrame(t.step_func(function() {
assert_true(hiddenIFrame.contentDocument.timeline.currentTime > 0,
'document.timeline.currentTime is positive after removing'
+ ' display:none');
var previousValue = hiddenIFrame.contentDocument.timeline.currentTime;
// Re-introduce display:none
hiddenIFrame.style.display = 'none';
window.getComputedStyle(hiddenIFrame).display;
window.requestAnimationFrame(t.step_func(function() {
assert_true(
hiddenIFrame.contentDocument.timeline.currentTime >= previousValue,
'document.timeline.currentTime does not go backwards after'
+ ' re-setting display:none');
t.done();
}));
}));
});
if (hiddenIFrame.contentDocument.readyState === 'complete') {
testToRunOnLoad();
} else {
hiddenIFrame.addEventListener("load", testToRunOnLoad);
}
}, 'document.timeline.currentTime hidden subframe dynamic test');
done();
</script>