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//----------------------------------------------------------------------
//
// Common testing functions
//
//----------------------------------------------------------------------
/* eslint-disable mozilla/no-comparison-or-assignment-inside-ok */
function advance_clock(milliseconds) {
SpecialPowers.DOMWindowUtils.advanceTimeAndRefresh(milliseconds);
}
// Test-element creation/destruction and event checking
(function () {
var gElem;
var gEventsReceived = [];
function new_div(style) {
return new_element("div", style);
}
// Creates a new |tagname| element with inline style |style| and appends
// it as a child of the element with ID 'display'.
// The element will also be given the class 'target' which can be used
// for additional styling.
function new_element(tagname, style) {
if (gElem) {
ok(false, "test author forgot to call done_div/done_elem");
}
if (typeof style != "string") {
ok(false, "test author forgot to pass argument");
}
if (!document.getElementById("display")) {
ok(false, "no 'display' element to append to");
}
gElem = document.createElement(tagname);
gElem.setAttribute("style", style);
gElem.classList.add("target");
document.getElementById("display").appendChild(gElem);
return [gElem, getComputedStyle(gElem, "")];
}
function listen() {
if (!gElem) {
ok(false, "test author forgot to call new_div before listen");
}
gEventsReceived = [];
function listener(event) {
gEventsReceived.push(event);
}
gElem.addEventListener("animationstart", listener);
gElem.addEventListener("animationiteration", listener);
gElem.addEventListener("animationend", listener);
}
function check_events(eventsExpected, desc) {
// This function checks that the list of eventsExpected matches
// the received events -- but it only checks the properties that
// are present on eventsExpected.
is(
gEventsReceived.length,
eventsExpected.length,
"number of events received for " + desc
);
for (
var i = 0,
i_end = Math.min(eventsExpected.length, gEventsReceived.length);
i != i_end;
++i
) {
var exp = eventsExpected[i];
var rec = gEventsReceived[i];
for (var prop in exp) {
if (prop == "elapsedTime") {
// Allow floating point error.
ok(
Math.abs(rec.elapsedTime - exp.elapsedTime) < 0.000002,
"events[" +
i +
"]." +
prop +
" for " +
desc +
" received=" +
rec.elapsedTime +
" expected=" +
exp.elapsedTime
);
} else {
is(
rec[prop],
exp[prop],
"events[" + i + "]." + prop + " for " + desc
);
}
}
}
for (var i = eventsExpected.length; i < gEventsReceived.length; ++i) {
ok(false, "unexpected " + gEventsReceived[i].type + " event for " + desc);
}
gEventsReceived = [];
}
function done_element() {
if (!gElem) {
ok(
false,
"test author called done_element/done_div without matching" +
" call to new_element/new_div"
);
}
gElem.remove();
gElem = null;
if (gEventsReceived.length) {
ok(false, "caller should have called check_events");
}
}
[new_div, new_element, listen, check_events, done_element].forEach(
function (fn) {
window[fn.name] = fn;
}
);
window.done_div = done_element;
})();
function px_to_num(str) {
return Number(String(str).match(/^([\d.]+)px$/)[1]);
}
function bezier(x1, y1, x2, y2) {
// Cubic bezier with control points (0, 0), (x1, y1), (x2, y2), and (1, 1).
function x_for_t(t) {
var omt = 1 - t;
return 3 * omt * omt * t * x1 + 3 * omt * t * t * x2 + t * t * t;
}
function y_for_t(t) {
var omt = 1 - t;
return 3 * omt * omt * t * y1 + 3 * omt * t * t * y2 + t * t * t;
}
function t_for_x(x) {
// Binary subdivision.
var mint = 0,
maxt = 1;
for (var i = 0; i < 30; ++i) {
var guesst = (mint + maxt) / 2;
var guessx = x_for_t(guesst);
if (x < guessx) {
maxt = guesst;
} else {
mint = guesst;
}
}
return (mint + maxt) / 2;
}
return function bezier_closure(x) {
if (x == 0) {
return 0;
}
if (x == 1) {
return 1;
}
return y_for_t(t_for_x(x));
};
}
function step_end(nsteps) {
return function step_end_closure(x) {
return Math.floor(x * nsteps) / nsteps;
};
}
function step_start(nsteps) {
var stepend = step_end(nsteps);
return function step_start_closure(x) {
return 1.0 - stepend(1.0 - x);
};
}
var gTF = {
ease: bezier(0.25, 0.1, 0.25, 1),
linear: function (x) {
return x;
},
ease_in: bezier(0.42, 0, 1, 1),
ease_out: bezier(0, 0, 0.58, 1),
ease_in_out: bezier(0.42, 0, 0.58, 1),
step_start: step_start(1),
step_end: step_end(1),
};
function is_approx(float1, float2, error, desc) {
ok(
Math.abs(float1 - float2) < error,
desc + ": " + float1 + " and " + float2 + " should be within " + error
);
}
function findKeyframesRule(name) {
for (var i = 0; i < document.styleSheets.length; i++) {
var match = [].find.call(document.styleSheets[i].cssRules, function (rule) {
return rule.type == CSSRule.KEYFRAMES_RULE && rule.name == name;
});
if (match) {
return match;
}
}
return undefined;
}
function isOMTAWorking() {
function waitForDocumentLoad() {
return new Promise(function (resolve, reject) {
if (document.readyState === "complete") {
resolve();
} else {
window.addEventListener("load", resolve);
}
});
}
function loadPaintListener() {
return new Promise(function (resolve, reject) {
if (typeof window.waitForAllPaints !== "function") {
var script = document.createElement("script");
script.onload = resolve;
script.onerror = function () {
reject(new Error("Failed to load paint listener"));
};
script.src = "/tests/SimpleTest/paint_listener.js";
var firstScript = document.scripts[0];
firstScript.parentNode.insertBefore(script, firstScript);
} else {
resolve();
}
});
}
// Create keyframes rule
const animationName = "a6ce3091ed85"; // Random name to avoid clashes
var ruleText =
"@keyframes " +
animationName +
" { from { opacity: 0.5 } to { opacity: 0.5 } }";
var style = document.createElement("style");
style.appendChild(document.createTextNode(ruleText));
document.head.appendChild(style);
// Create animation target
var div = document.createElement("div");
document.body.appendChild(div);
// Give the target geometry so it is eligible for layerization
div.style.width = "100px";
div.style.height = "100px";
div.style.backgroundColor = "white";
var utils = SpecialPowers.DOMWindowUtils;
// Common clean up code
var cleanUp = function () {
div.remove();
style.remove();
if (utils.isTestControllingRefreshes) {
utils.restoreNormalRefresh();
}
};
return waitForDocumentLoad()
.then(loadPaintListener)
.then(function () {
// Put refresh driver under test control and flush all pending style,
// layout and paint to avoid the situation that waitForPaintsFlush()
// receives unexpected MozAfterpaint event for those pending
// notifications.
utils.advanceTimeAndRefresh(0);
return waitForPaintsFlushed();
})
.then(function () {
div.style.animation = animationName + " 10s";
return waitForPaintsFlushed();
})
.then(function () {
var opacity = utils.getOMTAStyle(div, "opacity");
cleanUp();
return Promise.resolve(opacity == 0.5);
})
.catch(function (err) {
cleanUp();
return Promise.reject(err);
});
}
// Checks if off-main thread animation (OMTA) is available, and if it is, runs
// the provided callback function. If OMTA is not available or is not
// functioning correctly, the second callback, aOnSkip, is run instead.
//
// This function also does an internal test to verify that OMTA is working at
// all so that if OMTA is not functioning correctly when it is expected to
// function only a single failure is produced.
//
// Since this function relies on various asynchronous operations, the caller is
// responsible for calling SimpleTest.waitForExplicitFinish() before calling
// this and SimpleTest.finish() within aTestFunction and aOnSkip.
//
// specialPowersForPrefs exists because some SpecialPowers objects apparently
// can get prefs and some can't; callers that would normally have one of the
// latter but can get their hands on one of the former can pass it in
// explicitly.
function runOMTATest(aTestFunction, aOnSkip, specialPowersForPrefs) {
const OMTAPrefKey = "layers.offmainthreadcomposition.async-animations";
var utils = SpecialPowers.DOMWindowUtils;
if (!specialPowersForPrefs) {
specialPowersForPrefs = SpecialPowers;
}
var expectOMTA =
utils.layerManagerRemote &&
// ^ Off-main thread animation cannot be used if off-main
// thread composition (OMTC) is not available
specialPowersForPrefs.getBoolPref(OMTAPrefKey);
isOMTAWorking()
.then(function (isWorking) {
if (expectOMTA) {
if (isWorking) {
aTestFunction();
} else {
// We only call this when we know it will fail as otherwise in the
// regular success case we will end up inflating the "passed tests"
// count by 1
ok(isWorking, "OMTA should work");
aOnSkip();
}
} else {
todo(
isWorking,
"OMTA should ideally work, though we don't expect it to work on " +
"this platform/configuration"
);
aOnSkip();
}
})
.catch(function (err) {
ok(false, err);
aOnSkip();
});
}
// Common architecture for setting up a series of asynchronous animation tests
//
// Usage example:
//
// addAsyncAnimTest(function *() {
// .. do work ..
// yield functionThatReturnsAPromise();
// .. do work ..
// });
// runAllAsyncAnimTests().then(SimpleTest.finish());
//
(function () {
var tests = [];
window.addAsyncAnimTest = function (generator) {
tests.push(generator);
};
// Returns a promise when all tests have run
window.runAllAsyncAnimTests = function (aOnAbort) {
// runAsyncAnimTest returns a Promise that is resolved when the
// test is finished so we can chain them together
return tests.reduce(function (sequence, test) {
return sequence.then(function () {
return runAsyncAnimTest(test, aOnAbort);
});
}, Promise.resolve() /* the start of the sequence */);
};
// Takes a generator function that represents a test case. Each point in the
// test case that waits asynchronously for some result yields a Promise that
// is resolved when the asynchronous action has completed. By chaining these
// intermediate results together we run the test to completion.
//
// This method itself returns a Promise that is resolved when the generator
// function has completed.
//
// This arrangement is based on add_task() which is currently only available
// mochitest-plain, we can remove this function and use add_task instead.
function runAsyncAnimTest(aTestFunc, aOnAbort) {
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);
}
return Promise.resolve(next.value).then(step, function (err) {
throw err;
});
}
// Put refresh driver under test control
SpecialPowers.DOMWindowUtils.advanceTimeAndRefresh(0);
// Run test
var promise = aTestFunc();
if (!promise.then) {
generator = promise;
promise = step();
}
return promise
.catch(function (err) {
ok(false, err.message);
if (typeof aOnAbort == "function") {
aOnAbort();
}
})
.then(function () {
// Restore clock
SpecialPowers.DOMWindowUtils.restoreNormalRefresh();
});
}
})();
//----------------------------------------------------------------------
//
// Helper functions for testing animated values on the compositor
//
//----------------------------------------------------------------------
const RunningOn = {
MainThread: 0,
Compositor: 1,
Either: 2,
TodoMainThread: 3,
TodoCompositor: 4,
};
const ExpectComparisonTo = {
Pass: 1,
Fail: 2,
};
(function () {
window.omta_todo_is = function (
elem,
property,
expected,
runningOn,
desc,
pseudo
) {
return omta_is_approx(
elem,
property,
expected,
0,
runningOn,
desc,
ExpectComparisonTo.Fail,
pseudo
);
};
window.omta_is = function (
elem,
property,
expected,
runningOn,
desc,
pseudo
) {
return omta_is_approx(
elem,
property,
expected,
0,
runningOn,
desc,
ExpectComparisonTo.Pass,
pseudo
);
};
// Many callers of this method will pass 'undefined' for
// expectedComparisonResult.
window.omta_is_approx = function (
elem,
property,
expected,
tolerance,
runningOn,
desc,
expectedComparisonResult,
pseudo
) {
// Check input
// FIXME: Auto generate this array.
const omtaProperties = [
"transform",
"translate",
"rotate",
"scale",
"offset-path",
"offset-distance",
"offset-rotate",
"offset-anchor",
"offset-position",
"opacity",
"background-color",
];
if (!omtaProperties.includes(property)) {
ok(false, property + " is not an OMTA property");
return;
}
var normalize;
var compare;
var normalizedToString = JSON.stringify;
switch (property) {
case "offset-path":
case "offset-distance":
case "offset-rotate":
case "offset-anchor":
case "offset-position":
case "translate":
case "rotate":
case "scale":
if (runningOn == RunningOn.MainThread) {
normalize = value => value;
compare = function (a, b, error) {
return a == b;
};
break;
}
// fall through
case "transform":
normalize = convertTo3dMatrix;
compare = matricesRoughlyEqual;
normalizedToString = convert3dMatrixToString;
break;
case "opacity":
normalize = parseFloat;
compare = function (a, b, error) {
return Math.abs(a - b) <= error;
};
break;
default:
normalize = value => value;
compare = function (a, b, error) {
return a == b;
};
break;
}
if (!!expected.compositorValue) {
const originalNormalize = normalize;
normalize = value =>
!!value.compositorValue
? originalNormalize(value.compositorValue)
: originalNormalize(value);
}
// Get actual values
var compositorStr = SpecialPowers.DOMWindowUtils.getOMTAStyle(
elem,
property,
pseudo
);
var computedStr = window.getComputedStyle(elem, pseudo)[property];
// Prepare expected value
var expectedValue = normalize(expected);
if (expectedValue === null) {
ok(
false,
desc +
": test author should provide a valid 'expected' value" +
" - got " +
expected.toString()
);
return;
}
// Check expected value appears in the right place
var actualStr;
switch (runningOn) {
case RunningOn.Either:
runningOn =
compositorStr !== "" ? RunningOn.Compositor : RunningOn.MainThread;
actualStr = compositorStr !== "" ? compositorStr : computedStr;
break;
case RunningOn.Compositor:
if (compositorStr === "") {
ok(false, desc + ": should be animating on compositor");
return;
}
actualStr = compositorStr;
break;
case RunningOn.TodoMainThread:
todo(
compositorStr === "",
desc + ": should NOT be animating on compositor"
);
actualStr = compositorStr === "" ? computedStr : compositorStr;
break;
case RunningOn.TodoCompositor:
todo(
compositorStr !== "",
desc + ": should be animating on compositor"
);
actualStr = compositorStr !== "" ? computedStr : compositorStr;
break;
default:
if (compositorStr !== "") {
ok(false, desc + ": should NOT be animating on compositor");
return;
}
actualStr = computedStr;
break;
}
var okOrTodo =
expectedComparisonResult == ExpectComparisonTo.Fail ? todo : ok;
// Compare animated value with expected
var actualValue = normalize(actualStr);
// Note: the actualStr should be empty string when using todoCompositor, so
// actualValue is null in this case. However, compare() should handle null
// well.
okOrTodo(
compare(expectedValue, actualValue, tolerance),
desc +
" - got " +
actualStr +
", expected " +
normalizedToString(expectedValue)
);
// For transform-like properties, if we have multiple transform-like
// properties, the OMTA value and getComputedStyle() must be different,
// so use this flag to skip the following tests.
// FIXME: Putting this property on the expected value is a little bit odd.
// It's not really a product of the expected value, but rather the kind of
// test we're running. That said, the omta_is, omta_todo_is etc. methods are
// already pretty complex and adding another parameter would probably
// complicate things too much so this is fine for now. If we extend these
// functions any more, though, we should probably reconsider this API.
if (expected.usesMultipleProperties) {
return;
}
if (typeof expected.computed !== "undefined") {
// For some tests we specify a separate computed value for comparing
// with getComputedStyle.
//
// In particular, we do this for the individual transform functions since
// the form returned from getComputedStyle() reflects the individual
// properties (e.g. 'translate: 100px') while the form we read back from
// the compositor represents the combined result of all the transform
// properties as a single transform matrix (e.g. [0, 0, 0, 0, 100, 0]).
//
// Despite the fact that we can't directly compare the OMTA value against
// the getComputedStyle value in this case, it is still worth checking the
// result of getComputedStyle since it will help to alert us if some
// discrepancy arises between the way we calculate values on the main
// thread and compositor.
okOrTodo(
computedStr == expected.computed,
desc + ": Computed style should be equal to " + expected.computed
);
} else if (actualStr === compositorStr) {
// For compositor animations do an additional check that they match
// the value calculated on the main thread
var computedValue = normalize(computedStr);
if (computedValue === null) {
ok(
false,
desc +
": test framework should parse computed style" +
" - got " +
computedStr
);
return;
}
okOrTodo(
compare(computedValue, actualValue, 0.0),
desc +
": OMTA style and computed style should be equal" +
" - OMTA " +
actualStr +
", computed " +
computedStr
);
}
};
window.matricesRoughlyEqual = function (a, b, tolerance) {
// Error handle if a or b is invalid.
if (!a || !b) {
return false;
}
tolerance = tolerance || 0.00011;
for (var i = 0; i < 4; i++) {
for (var j = 0; j < 4; j++) {
var diff = Math.abs(a[i][j] - b[i][j]);
if (diff > tolerance || isNaN(diff)) {
return false;
}
}
}
return true;
};
// Converts something representing an transform into a 3d matrix in
// column-major order.
// The following are supported:
// "matrix(...)"
// "matrix3d(...)"
// [ 1, 0, 0, ... ]
// { a: 1, ty: 23 } etc.
window.convertTo3dMatrix = function (matrixLike) {
if (typeof matrixLike == "string") {
return convertStringTo3dMatrix(matrixLike);
} else if (Array.isArray(matrixLike)) {
return convertArrayTo3dMatrix(matrixLike);
} else if (typeof matrixLike == "object") {
return convertObjectTo3dMatrix(matrixLike);
}
return null;
};
// In future most of these methods should be able to be replaced
// with DOMMatrix
window.isInvertible = function (matrix) {
return getDeterminant(matrix) != 0;
};
// Converts strings of the format "matrix(...)" and "matrix3d(...)" to a 3d
// matrix
function convertStringTo3dMatrix(str) {
if (str == "none") {
return convertArrayTo3dMatrix([1, 0, 0, 1, 0, 0]);
}
var result = str.match("^matrix(3d)?\\(");
if (result === null) {
return null;
}
return convertArrayTo3dMatrix(
str
.substring(result[0].length, str.length - 1)
.split(",")
.map(function (component) {
return Number(component);
})
);
}
// Takes an array of numbers of length 6 (2d matrix) or 16 (3d matrix)
// representing a matrix specified in column-major order and returns a 3d
// matrix represented as an array of arrays
function convertArrayTo3dMatrix(array) {
if (array.length == 6) {
return convertObjectTo3dMatrix({
a: array[0],
b: array[1],
c: array[2],
d: array[3],
e: array[4],
f: array[5],
});
} else if (array.length == 16) {
return [
array.slice(0, 4),
array.slice(4, 8),
array.slice(8, 12),
array.slice(12, 16),
];
}
return null;
}
// Return the first defined value in args.
function defined(...args) {
return args.find(arg => typeof arg !== "undefined");
}
// Takes an object of the form { a: 1.1, e: 23 } and builds up a 3d matrix
// with unspecified values filled in with identity values.
function convertObjectTo3dMatrix(obj) {
return [
[
defined(obj.a, obj.sx, obj.m11, 1),
obj.b || obj.m12 || 0,
obj.m13 || 0,
obj.m14 || 0,
],
[
obj.c || obj.m21 || 0,
defined(obj.d, obj.sy, obj.m22, 1),
obj.m23 || 0,
obj.m24 || 0,
],
[obj.m31 || 0, obj.m32 || 0, defined(obj.sz, obj.m33, 1), obj.m34 || 0],
[
obj.e || obj.tx || obj.m41 || 0,
obj.f || obj.ty || obj.m42 || 0,
obj.tz || obj.m43 || 0,
defined(obj.m44, 1),
],
];
}
function convert3dMatrixToString(matrix) {
if (is2d(matrix)) {
return (
"matrix(" +
[
matrix[0][0],
matrix[0][1],
matrix[1][0],
matrix[1][1],
matrix[3][0],
matrix[3][1],
].join(", ") +
")"
);
}
return (
"matrix3d(" +
matrix
.reduce(function (outer, inner) {
return outer.concat(inner);
})
.join(", ") +
")"
);
}
function is2d(matrix) {
return (
matrix[0][2] === 0 &&
matrix[0][3] === 0 &&
matrix[1][2] === 0 &&
matrix[1][3] === 0 &&
matrix[2][0] === 0 &&
matrix[2][1] === 0 &&
matrix[2][2] === 1 &&
matrix[2][3] === 0 &&
matrix[3][2] === 0 &&
matrix[3][3] === 1
);
}
function getDeterminant(matrix) {
if (is2d(matrix)) {
return matrix[0][0] * matrix[1][1] - matrix[0][1] * matrix[1][0];
}
return (
matrix[0][3] * matrix[1][2] * matrix[2][1] * matrix[3][0] -
matrix[0][2] * matrix[1][3] * matrix[2][1] * matrix[3][0] -
matrix[0][3] * matrix[1][1] * matrix[2][2] * matrix[3][0] +
matrix[0][1] * matrix[1][3] * matrix[2][2] * matrix[3][0] +
matrix[0][2] * matrix[1][1] * matrix[2][3] * matrix[3][0] -
matrix[0][1] * matrix[1][2] * matrix[2][3] * matrix[3][0] -
matrix[0][3] * matrix[1][2] * matrix[2][0] * matrix[3][1] +
matrix[0][2] * matrix[1][3] * matrix[2][0] * matrix[3][1] +
matrix[0][3] * matrix[1][0] * matrix[2][2] * matrix[3][1] -
matrix[0][0] * matrix[1][3] * matrix[2][2] * matrix[3][1] -
matrix[0][2] * matrix[1][0] * matrix[2][3] * matrix[3][1] +
matrix[0][0] * matrix[1][2] * matrix[2][3] * matrix[3][1] +
matrix[0][3] * matrix[1][1] * matrix[2][0] * matrix[3][2] -
matrix[0][1] * matrix[1][3] * matrix[2][0] * matrix[3][2] -
matrix[0][3] * matrix[1][0] * matrix[2][1] * matrix[3][2] +
matrix[0][0] * matrix[1][3] * matrix[2][1] * matrix[3][2] +
matrix[0][1] * matrix[1][0] * matrix[2][3] * matrix[3][2] -
matrix[0][0] * matrix[1][1] * matrix[2][3] * matrix[3][2] -
matrix[0][2] * matrix[1][1] * matrix[2][0] * matrix[3][3] +
matrix[0][1] * matrix[1][2] * matrix[2][0] * matrix[3][3] +
matrix[0][2] * matrix[1][0] * matrix[2][1] * matrix[3][3] -
matrix[0][0] * matrix[1][2] * matrix[2][1] * matrix[3][3] -
matrix[0][1] * matrix[1][0] * matrix[2][2] * matrix[3][3] +
matrix[0][0] * matrix[1][1] * matrix[2][2] * matrix[3][3]
);
}
})();
//----------------------------------------------------------------------
//
// Promise wrappers for paint_listener.js
//
//----------------------------------------------------------------------
// Returns a Promise that resolves once all paints have completed
function waitForPaints() {
return new Promise(function (resolve, reject) {
waitForAllPaints(resolve);
});
}
// As with waitForPaints but also flushes pending style changes before waiting
function waitForPaintsFlushed() {
return new Promise(function (resolve, reject) {
waitForAllPaintsFlushed(resolve);
});
}
function waitForVisitedLinkColoring(visitedLink, waitProperty, waitValue) {
function checkLink(resolve) {
if (
SpecialPowers.DOMWindowUtils.getVisitedDependentComputedStyle(
visitedLink,
"",
waitProperty
) == waitValue
) {
// Our link has been styled as visited. Resolve.
resolve(true);
} else {
// Our link is not yet styled as visited. Poll for completion.
setTimeout(checkLink, 0, resolve);
}
}
return new Promise(function (resolve, reject) {
checkLink(resolve);
});
}