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|
<!DOCTYPE html>
<meta charset=utf-8>
<title>Test for the CSS Font Loading API</title>
<script src=/tests/SimpleTest/SimpleTest.js></script>
<link rel=stylesheet type=text/css href=/tests/SimpleTest/test.css>
<script src=descriptor_database.js></script>
<body onload="runTest()">
<iframe id=v src="file_font_loading_api_vframe.html"></iframe>
<iframe id=n style="display: none"></iframe>
<script>
// Map of FontFace descriptor attribute names to @font-face rule descriptor
// names.
var descriptorNames = {
style: "font-style",
weight: "font-weight",
stretch: "font-stretch",
unicodeRange: "unicode-range",
variant: "font-variant",
featureSettings: "font-feature-settings",
display: "font-display"
};
// Default values for the FontFace descriptor attributes other than family, as
// Gecko currently serializes them.
var defaultValues = {
style: "normal",
weight: "normal",
stretch: "normal",
unicodeRange: "U+0-10FFFF",
variant: "normal",
featureSettings: "normal",
display: "auto"
};
// Non-default values for the FontFace descriptor attributes other than family
// along with how Gecko currently serializes them. Each value is chosen to be
// different from the default value and also has a different serialized form.
var nonDefaultValues = {
style: ["Italic", "italic"],
weight: ["Bold", "bold"],
stretch: ["Ultra-Condensed", "ultra-condensed"],
unicodeRange: ["U+3??", "U+300-3FF"],
variant: ["Small-Caps", "small-caps"],
featureSettings: ["'dlig' on", "\"dlig\""],
display: ["Block", "block"]
};
// Invalid values for the FontFace descriptor attributes other than family.
var invalidValues = {
style: "initial",
weight: "bolder",
stretch: "wider",
unicodeRange: "U+1????-2????",
variant: "inherit",
featureSettings: "dlig",
display: "normal"
};
// Invalid font family names.
var invalidFontFamilyNames = [
"", "sans-serif", "A, B", "inherit", "a 1"
];
// Font family list where at least one is likely to be available on
// platforms we care about.
var likelyPlatformFonts = "Helvetica Neue, Bitstream Vera Sans, Bitstream Vera Sans Roman, FreeSans, Free Sans, SwissA, DejaVu Sans, Arial";
// Will hold an ArrayBuffer containing a valid font.
var fontData;
var queue = Promise.resolve();
function is_resolved_with(aPromise, aExpectedValue, aDescription, aTestID) {
// This assumes that all Promise tasks come from the task source.
var handled = false;
return new Promise(function(aResolve, aReject) {
aPromise.then(function(aValue) {
if (!handled) {
handled = true;
is(aValue, aExpectedValue, aDescription + " should be resolved with the expected value " + aTestID);
aResolve();
}
}, function(aError) {
if (!handled) {
handled = true;
ok(false, aDescription + " should be resolved; instead it was rejected with " + aError + " " + aTestID);
aResolve();
}
});
Promise.resolve().then(function() {
if (!handled) {
handled = true;
ok(false, aDescription + " should be resolved; instead it is pending " + aTestID);
aResolve();
}
});
});
}
function is_pending(aPromise, aDescription, aTestID) {
// This assumes that all Promise tasks come from the task source.
var handled = false;
return new Promise(function(aResolve, aReject) {
aPromise.then(function(aValue) {
if (!handled) {
handled = true;
ok(false, aDescription + " should be pending; instead it was resolved with " + aValue + " " + aTestID);
aResolve();
}
}, function(aError) {
if (!handled) {
handled = true;
ok(false, aDescription + " should be pending; instead it was rejected with " + aError + " " + aTestID);
aResolve();
}
});
Promise.resolve().then(function() {
if (!handled) {
handled = true;
ok(true, aDescription + " should be pending " + aTestID);
aResolve();
}
});
});
}
function fetchAsArrayBuffer(aURL) {
return new Promise(function(aResolve, aReject) {
var xhr = new XMLHttpRequest();
xhr.open("GET", aURL);
xhr.responseType = "arraybuffer";
xhr.onreadystatechange = function(evt) {
if (xhr.readyState == 4) {
if (xhr.status >= 200 && xhr.status <= 299) {
aResolve(xhr.response);
} else {
aReject(new Error("Error fetching file " + aURL + ", status " + xhr.status));
}
}
};
xhr.send();
});
}
function setTimeoutZero() {
return new Promise(function(aResolve, aReject) {
setTimeout(aResolve, 0);
});
}
function awaitRefresh() {
function awaitOneRefresh() {
return new Promise(function(aResolve, aReject) {
requestAnimationFrame(aResolve);
});
}
return awaitOneRefresh().then(awaitOneRefresh);
}
function flushStyles() {
getComputedStyle(document.body).width;
}
function runTest() {
// Document and window from inside the display:none iframe.
var nframe = document.getElementById("n");
var ndocument = nframe.contentDocument;
var nwindow = nframe.contentWindow;
// Document and window from inside the visible iframe.
var vframe = document.getElementById("v");
var vdocument = vframe.contentDocument;
var vwindow = vframe.contentWindow;
// For iterating over different combinations of documents and windows
// to test with.
var sources = [
{ win: window, doc: document, what: "window/document" },
{ win: vwindow, doc: vdocument, what: "vwindow/vdocument" },
{ win: nwindow, doc: ndocument, what: "nwindow/ndocument" },
{ win: window, doc: vdocument, what: "window/vdocument" },
{ win: window, doc: ndocument, what: "window/ndocument" },
{ win: vwindow, doc: document, what: "vwindow/document" },
{ win: vwindow, doc: ndocument, what: "vwindow/ndocument" },
{ win: nwindow, doc: document, what: "nwindow/document" },
{ win: nwindow, doc: vdocument, what: "nwindow/vdocument" },
];
var sourceDocuments = [
{ doc: document, what: "document" },
{ doc: vdocument, what: "vdocument" },
{ doc: ndocument, what: "ndocument" },
];
var sourceWindows = [
{ win: window, what: "window" },
{ win: vwindow, what: "vwindow" },
{ win: nwindow, what: "nwindow" },
];
queue = queue.then(function() {
// First, initialize fontData.
return fetchAsArrayBuffer("BitPattern.woff")
.then(function(aResult) { fontData = aResult; });
}).then(function() {
// (TEST 1) Some miscellaneous tests for FontFaceSet and FontFace.
ok(window.FontFaceSet, "FontFaceSet interface object should be present (TEST 1)");
is(Object.getPrototypeOf(FontFaceSet.prototype), EventTarget.prototype, "FontFaceSet should inherit from EventTarget (TEST 1)");
ok(document.fonts instanceof FontFaceSet, "document.fonts should be a a FontFaceSet (TEST 1)");
ok(window.FontFace, "FontFace interface object should be present (TEST 1)");
is(Object.getPrototypeOf(FontFace.prototype), Object.prototype, "FontFace should inherit from Object (TEST 1)");
// (TEST 2) Some miscellaneous tests for FontFaceSetLoadEvent.
ok(window.FontFaceSetLoadEvent, "FontFaceSetLoadEvent interface object should be present (TEST 2)");
is(Object.getPrototypeOf(FontFaceSetLoadEvent.prototype), Event.prototype, "FontFaceSetLoadEvent should inherit from Event (TEST 2)");
}).then(function() {
// (TEST 3) Test that document.fonts.ready is resolved with the
// document.fonts FontFaceSet.
var p = Promise.resolve();
sourceDocuments.forEach(function({ doc, what }) {
p = p.then(_ => { return doc.fonts.ready }).then(function() {
return is_resolved_with(doc.fonts.ready, doc.fonts, "document.fonts.ready resolves with document.fonts.", "(TEST 3) (" + what + ")");
});
});
return p;
}).then(function() {
// (TEST 4) Test that document.fonts in this test document starts out with no
// FontFace objects in it.
sourceDocuments.forEach(function({ doc, what }) {
is(Array.from(doc.fonts).length, 0, "initial number of FontFace objects in document.fonts (TEST 4) (" + what + ")");
});
// (TEST 5) Test that document.fonts.status starts off as loaded.
sourceDocuments.forEach(function({ doc, what }) {
is(doc.fonts.status, "loaded", "initial value of document.fonts.status (TEST 5) (" + what + ")");
});
// (TEST 6) Test initial value of FontFace.status when a url() source is
// used.
sourceWindows.forEach(function({ win, what }) {
is(new win.FontFace("test", "url(x)").status, "unloaded", "initial value of FontFace.status when a url() source is used (TEST 6) (" + what + ")");
});
// (TEST 7) Test initial value of FontFace.status when an invalid
// ArrayBuffer source is used. Because it has an implicit initial
// load() call, it should either be "loading" if the browser is
// asynchronously parsing the font data, or "error" if it parsed
// it immediately.
sourceWindows.forEach(function({ win, what }) {
var status = new win.FontFace("test", new ArrayBuffer(0)).status;
ok(status == "loading" || status == "error", "initial value of FontFace.status when an invalid ArrayBuffer source is used (TEST 7) (" + what + ")");
});
// (TEST 8) Test initial value of FontFace.status when a valid ArrayBuffer
// source is used. Because it has an implicit initial load() call, it
// should either be "loading" if the browser is asynchronously parsing the
// font data, or "loaded" if it parsed it immediately.
sourceWindows.forEach(function({ win, what }) {
status = new win.FontFace("test", fontData).status;
ok(status == "loading" || status == "loaded", "initial value of FontFace.status when a valid ArrayBuffer source is used (TEST 8) (" + what + ")");
});
// (TEST 9) (old test became redundant with TEST 19)
}).then(function() {
// (TEST 10) Test initial value of FontFace.loaded when a valid url()
// source is used.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
return is_pending(new win.FontFace("test", "url(x)").loaded, "initial value of FontFace.loaded when a valid url() source is used", "(TEST 10) (" + what + ")");
});
});
return p;
}).then(function() {
// (TEST 11) (old test became redundant with TEST 21)
}).then(function() {
// (TEST 12) (old test became redundant with TEST 20)
}).then(function() {
// (TEST 13) Test initial values of the descriptor attributes on FontFace
// objects.
sourceWindows.forEach(function({ win, what }) {
var face = new win.FontFace("test", fontData);
// XXX Spec issue: what values do the descriptor attributes have before the
// constructor's dictionary argument is parsed?
for (var desc in defaultValues) {
is(face[desc], defaultValues[desc], "initial value of FontFace." + desc + " (TEST 13) (" + what + ")");
}
});
// (TEST 14) Test default values of the FontFaceDescriptors dictionary.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var face = new win.FontFace("test", fontData);
return face.loaded.then(function() {
for (var desc in defaultValues) {
is(face[desc], defaultValues[desc], "default value of FontFace." + desc + " (TEST 14) (" + what + ")");
}
}, function(aError) {
ok(false, "FontFace should have loaded succesfully (TEST 14) (" + what + ")");
});
});
});
return p;
}).then(function() {
// (TEST 15) Test passing non-default descriptor values to the FontFace
// constructor.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var descriptorTests = Promise.resolve();
Object.keys(nonDefaultValues).forEach(function(aDesc) {
descriptorTests = descriptorTests.then(function() {
var init = {};
init[aDesc] = nonDefaultValues[aDesc][0];
var face = new win.FontFace("test", fontData, init);
var ok_todo = aDesc == "variant" ? todo : ok;
ok_todo(face[aDesc] == nonDefaultValues[aDesc][1], "specified valid non-default value of FontFace." + aDesc + " immediately after construction (TEST 15) (" + what + ")");
return face.loaded.then(function() {
ok_todo(face[aDesc] == nonDefaultValues[aDesc][1], "specified valid non-default value of FontFace." + aDesc + " (TEST 15) (" + what + ")");
}, function(aError) {
ok(false, "FontFace should have loaded succesfully (TEST 15) (" + what + ")");
});
});
});
return descriptorTests;
});
});
return p;
}).then(function() {
// (TEST 16) Test passing invalid descriptor values to the FontFace
// constructor.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var descriptorTests = Promise.resolve();
Object.keys(invalidValues).forEach(function(aDesc) {
descriptorTests = descriptorTests.then(function() {
var init = {};
init[aDesc] = invalidValues[aDesc];
var face = new win.FontFace("test", fontData, init);
var ok_todo = aDesc == "variant" ? todo : ok;
ok_todo(face.status == "error", "FontFace should be error immediately after construction with invalid value of FontFace." + aDesc + " (TEST 16) (" + what + ")");
return face.loaded.then(function() {
ok_todo(false, "FontFace should not load after invalid value of FontFace." + aDesc + " specified (TEST 16) (" + what + ")");
}, function(aError) {
ok(true, "FontFace should not load after invalid value of FontFace." + aDesc + " specified (TEST 16) (" + what + ")");
is(aError.name, "SyntaxError", "FontFace.loaded with invalid value of FontFace." + aDesc + " should be rejected with a SyntaxError (TEST 16) (" + what + ")");
});
});
});
return descriptorTests;
});
});
return p;
}).then(function() {
// (TEST 17) Test passing an invalid font family name to the FontFace
// constructor.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var familyTests = Promise.resolve();
invalidFontFamilyNames.forEach(function(aFamilyName) {
familyTests = familyTests.then(function() {
var face = new win.FontFace(aFamilyName, fontData);
is(face.status, "error", "FontFace should be error immediately after construction with invalid family name " + aFamilyName + " (TEST 17) (" + what + ")");
is(face.family, "", "FontFace.family should be the empty string after construction with invalid family name " + aFamilyName + " (TEST 17) (" + what + ")");
return face.loaded.then(function() {
ok(false, "FontFace should not load after invalid family name " + aFamilyName + " specified (TEST 17) (" + what + ")");
}, function(aError) {
ok(true, "FontFace should not load after invalid family name " + aFamilyName + " specified (TEST 17) (" + what + ")");
is(aError.name, "SyntaxError", "FontFace.loaded with invalid family name " + aFamilyName + " should be rejected with a SyntaxError (TEST 17) (" + what + ")");
});
});
});
return familyTests;
});
});
return p;
}).then(function() {
// (TEST 18) Test passing valid url() source strings to the FontFace
// constructor.
var p = Promise.resolve();
// The sub-test is very fragile on Android platform, see Bug 1455824,
// especially Comment 34.
if (navigator.appVersion.includes("Android")) {
return p;
}
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var srcTests = Promise.resolve();
gCSSFontFaceDescriptors.src.values.forEach(function(aSrc) {
srcTests = srcTests.then(function() {
var face = new win.FontFace("test", aSrc);
return face.load().then(function() {
ok(true, "FontFace should load with valid url() src " + aSrc + " (TEST 18) (" + what + ")");
}, function(aError) {
is(aError.name, "NetworkError", "FontFace had NetworkError when loading with valid url() src " + aSrc + " (TEST 18) (" + what + ")");
});
});
});
return srcTests;
});
});
return p;
}).then(function() {
// (TEST 19) Test passing invalid url() source strings to the FontFace
// constructor.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var srcTests = Promise.resolve();
gCSSFontFaceDescriptors.src.invalid_values.forEach(function(aSrc) {
srcTests = srcTests.then(function() {
var face = new win.FontFace("test", aSrc);
is(face.status, "error", "FontFace.status should be \"error\" when constructed with an invalid url() src " + aSrc + " (TEST 19) (" + what + ")");
return face.loaded.then(function() {
ok(false, "FontFace should not load with invalid url() src " + aSrc + " (TEST 19) (" + what + ")");
}, function(aError) {
is(aError.name, "SyntaxError", "FontFace.ready should have been rejected with a SyntaxError when constructed with an invalid url() src " + aSrc + " (TEST 19) (" + what + ")");
});
});
});
return srcTests;
});
});
return p;
}).then(function() {
// (TEST 20) Test that the status of a FontFace constructed with a valid
// ArrayBuffer source eventually becomes "loaded".
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var face = new win.FontFace("test", fontData);
return face.loaded.then(function(aFace) {
is(face.status, "loaded", "status of FontFace constructed with a valid ArrayBuffer source should eventually be \"loaded\" (TEST 20) (" + what + ")");
is(face, aFace, "FontFace.loaded was resolved with the FontFace object once loaded (TEST 20) (" + what + ")");
}, function(aError) {
ok(false, "FontFace constructed with a valid ArrayBuffer should eventually load (TEST 20) (" + what + ")");
});
});
});
return p;
}).then(function() {
// (TEST 21) Test that the status of a FontFace constructed with an invalid
// ArrayBuffer source eventually becomes "error".
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var face = new win.FontFace("test", new ArrayBuffer(0));
return face.loaded.then(function() {
ok(false, "FontFace constructed with an invalid ArrayBuffer should not load (TEST 21) (" + what + ")");
}, function(aError) {
is(aError.name, "SyntaxError", "loaded of FontFace constructed with an invalid ArrayBuffer source should be rejected with TypeError (TEST 21) (" + what + ")");
is(face.status, "error", "status of FontFace constructed with an invalid ArrayBuffer source should eventually be \"error\" (TEST 21) (" + what + ")");
});
});
});
return p;
}).then(function() {
// (TEST 22) Test assigning non-default descriptor values on the FontFace.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var descriptorTests = Promise.resolve();
Object.keys(nonDefaultValues).forEach(function(aDesc) {
descriptorTests = descriptorTests.then(function() {
var face = new win.FontFace("test", fontData);
return face.loaded.then(function() {
var ok_todo = aDesc == "variant" ? todo : ok;
face[aDesc] = nonDefaultValues[aDesc][0];
ok_todo(face[aDesc] == nonDefaultValues[aDesc][1], "assigned valid non-default value to FontFace." + aDesc + " (TEST 22) (" + what + ")");
}, function(aError) {
ok(false, "FontFace should have loaded succesfully (TEST 22) (" + what + ")");
});
});
});
return descriptorTests;
});
});
return p;
}).then(function() {
// (TEST 23) Test assigning invalid descriptor values on the FontFace.
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var descriptorTests = Promise.resolve();
Object.keys(invalidValues).forEach(function(aDesc) {
descriptorTests = descriptorTests.then(function() {
var face = new win.FontFace("test", fontData);
return face.loaded.then(function() {
var ok_todo = aDesc == "variant" ? todo : ok;
var exceptionName = "";
try {
face[aDesc] = invalidValues[aDesc];
} catch (ex) {
exceptionName = ex.name;
}
ok_todo(exceptionName == "SyntaxError", "assigning invalid value to FontFace." + aDesc + " should throw a SyntaxError (TEST 23) (" + what + ")");
}, function(aError) {
ok(false, "FontFace should have loaded succesfully (TEST 23) (" + what + ")");
});
});
});
return descriptorTests;
});
});
return p;
}).then(function() {
// (TEST 24) Test that the status of a FontFace with a non-existing url()
// source is set to "loading" right after load() is called, that its .loaded
// Promise is returned, and that the Promise is eventually rejected with a
// NetworkError and its status is set to "error".
var p = Promise.resolve();
sourceWindows.forEach(function({ win, what }) {
p = p.then(function() {
var face = new win.FontFace("test", "url(x)");
var result = face.load();
is(face.status, "loading", "FontFace.status should be \"loading\" right after load() is called (TEST 24) (" + what + ")");
is(result, face.loaded, "FontFace.load() should return the .loaded Promise (TEST 24) (" + what + ")");
return result.then(function() {
ok(false, "FontFace with a non-existing url() source should not load (TEST 24) (" + what + ")");
}, function(aError) {
is(aError.name, "NetworkError", "FontFace with a non-existing url() source should result in its .loaded Promise being rejected with a NetworkError (TEST 24) (" + what + ")");
is(face.status, "error", "FontFace with a non-existing url() source should result in its .status being set to \"error\" (TEST 24) (" + what + ")");
});
});
});
return p;
}).then(function() {
// (TEST 25) Test simple manipulation of the FontFaceSet.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
var face, face2, all;
face = new win.FontFace("test", "url(x)");
face2 = new win.FontFace("test2", "url(x)");
ok(!doc.fonts.has(face), "newly created FontFace should not be in document.fonts (TEST 25) (" + what + ")");
doc.fonts.add(face);
ok(doc.fonts.has(face), "should be able to add a FontFace to document.fonts (TEST 25) (" + what + ")");
doc.fonts.add(face);
ok(doc.fonts.has(face), "should be able to repeatedly add a FontFace to document.fonts (TEST 25) (" + what + ")");
ok(doc.fonts.delete(face), "FontFaceSet.delete should return true when it succeeds (TEST 25) (" + what + ")");
ok(!doc.fonts.has(face), "FontFace should be gone from document.fonts after delete is called (TEST 25) (" + what + ")");
ok(!doc.fonts.delete(face), "FontFaceSet.delete should return false when it fails (TEST 25) (" + what + ")");
doc.fonts.add(face);
doc.fonts.add(face2);
ok(doc.fonts.has(face2), "should be able to add a second FontFace to document.fonts (TEST 25) (" + what + ")");
doc.fonts.clear();
ok(!doc.fonts.has(face) && !doc.fonts.has(face2), "FontFaces should be gone from document.fonts after clear is called (TEST 25) (" + what + ")");
doc.fonts.add(face);
doc.fonts.add(face2);
all = Array.from(doc.fonts);
is(all[0], face, "FontFaces should be returned in the same order as insertion (TEST 25) (" + what + ")");
is(all[1], face2, "FontFaces should be returned in the same order as insertion (TEST 25) (" + what + ")");
doc.fonts.add(face);
all = Array.from(doc.fonts);
is(all[0], face, "FontFaces should be not be reordered when a duplicate entry is added (TEST 25) (" + what + ")");
is(all[1], face2, "FontFaces should be not be reordered when a duplicate entry is added (TEST 25) (" + what + ")");
doc.fonts.clear();
return doc.fonts.ready;
});
});
return p;
}).then(function() {
// (TEST 26) Test that FontFaceSet.ready is replaced, .status is set to
// "loading", and a loading event is dispatched when a loading FontFace is
// added to it.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
var awaitEvents = new Promise(function(aResolve, aReject) {
var onloadingTriggered = false, loadingDispatched = false;
function check() {
if (onloadingTriggered && loadingDispatched) {
doc.fonts.onloading = null;
doc.fonts.removeEventListener("loading", listener);
aResolve();
}
}
var listener = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.Event.prototype, "loading event should be a plain Event object (TEST 26) (" + what + ")");
loadingDispatched = true;
check();
};
doc.fonts.addEventListener("loading", listener);
doc.fonts.onloading = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.Event.prototype, "loading event should be a plain Event object (TEST 26) (" + what + ")");
onloadingTriggered = true;
check();
};
});
is(doc.fonts.status, "loaded", "FontFaceSet.status initially (TEST 26) (" + what + ")");
var oldReady = doc.fonts.ready;
var face = new win.FontFace("test", "url(neverending_font_load.sjs)");
face.load();
doc.fonts.add(face);
var newReady = doc.fonts.ready;
isnot(newReady, oldReady, "FontFaceSet.ready should be replaced when a loading FontFace is added to it (TEST 26) (" + what + ")");
is(doc.fonts.status, "loading", "FontFaceSet.status should be set to \"loading\" when a loading FontFace is added to it (TEST 26) (" + what + ")");
return awaitEvents
.then(function() {
return is_pending(newReady, "FontFaceSet.ready should be replaced with a fresh pending Promise when a loading FontFace is added to it", "(TEST 26) (" + what + ")");
})
.then(function() {
doc.fonts.clear();
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 27) Test that FontFaceSet.ready is resolved, .status is set to
// "loaded", and a loadingdone event (but no loadingerror event) is
// dispatched when the only loading FontFace in it is removed.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
var awaitEvents = new Promise(function(aResolve, aReject) {
var onloadingdoneTriggered = false, loadingdoneDispatched = false;
var onloadingerrorTriggered = false, loadingerrorDispatched = false;
function check() {
doc.fonts.onloadingdone = null;
doc.fonts.onloadingerror = null;
doc.fonts.removeEventListener("loadingdone", doneListener);
doc.fonts.removeEventListener("loadingerror", errorListener);
aResolve();
}
var doneListener = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.FontFaceSetLoadEvent.prototype, "loadingdone event should be a FontFaceSetLoadEvent object (TEST 27) (" + what + ")");
is(aEvent.fontfaces.length, 0, "the FontFaceSetLoadEvent should have an empty fontfaces array (TEST 27) (" + what + ")");
loadingdoneDispatched = true;
check();
};
doc.fonts.addEventListener("loadingdone", doneListener);
doc.fonts.onloadingdone = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.FontFaceSetLoadEvent.prototype, "loadingdone event should be a FontFaceSetLoadEvent object (TEST 27) (" + what + ")");
is(aEvent.fontfaces.length, 0, "the FontFaceSetLoadEvent should have an empty fontfaces array (TEST 27) (" + what + ")");
onloadingdoneTriggered = true;
check();
};
var errorListener = function(aEvent) {
loadingerrorDispatched = true;
check();
}
doc.fonts.addEventListener("loadingerror", errorListener);
doc.fonts.onloadingerror = function(aEvent) {
onloadingdoneTriggered = true;
check();
};
});
is(doc.fonts.status, "loaded", "FontFaceSet.status should be \"loaded\" initially (TEST 27) (" + what + ")");
var f = new win.FontFace("test", "url(neverending_font_load.sjs)");
f.load();
doc.fonts.add(f);
is(doc.fonts.status, "loading", "FontFaceSet.status should be \"loading\" when a loading FontFace is in it (TEST 27) (" + what + ")");
doc.fonts.clear();
return awaitEvents
.then(function() {
return is_resolved_with(doc.fonts.ready, doc.fonts, "FontFaceSet.ready when the FontFaceSet is cleared", "(TEST 27) (" + what + ")");
})
.then(function() {
is(doc.fonts.status, "loaded", "FontFaceSet.status should be set to \"loaded\" when it is cleared (TEST 27) (" + what + ")");
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 28) Test that FontFaceSet.ready is replaced, .status is set to
// "loading", and a loading event is dispatched when a FontFace in it
// starts loading.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
var awaitEvents = new Promise(function(aResolve, aReject) {
var onloadingTriggered = false, loadingDispatched = false;
function check() {
if (onloadingTriggered && loadingDispatched) {
doc.fonts.onloading = null;
doc.fonts.removeEventListener("loading", listener);
aResolve();
}
}
var listener = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.Event.prototype, "loading event should be a plain Event object (TEST 28) (" + what + ")");
loadingDispatched = true;
check();
};
doc.fonts.addEventListener("loading", listener);
doc.fonts.onloading = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.Event.prototype, "loading event should be a plain Event object (TEST 28) (" + what + ")");
onloadingTriggered = true;
check();
};
});
var oldReady = doc.fonts.ready;
var face = new win.FontFace("test", "url(neverending_font_load.sjs)");
doc.fonts.add(face);
face.load();
var newReady = doc.fonts.ready;
isnot(newReady, oldReady, "FontFaceSet.ready should be replaced when its only FontFace starts loading (TEST 28) (" + what + ")");
is(doc.fonts.status, "loading", "FontFaceSet.status should be set to \"loading\" when its only FontFace starts loading (TEST 28) (" + what + ")");
return awaitEvents
.then(function() {
return is_pending(newReady, "FontFaceSet.ready when the FontFaceSet's only FontFace starts loading", "(TEST 28) (" + what + ")");
})
.then(function() {
doc.fonts.clear();
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 29) Test that a loadingdone and a loadingerror event is dispatched
// when a FontFace that eventually becomes status "error" is added to the
// FontFaceSet.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
var face;
var awaitEvents = new Promise(function(aResolve, aReject) {
var onloadingdoneTriggered = false, loadingdoneDispatched = false;
var onloadingerrorTriggered = false, loadingerrorDispatched = false;
function check() {
if (onloadingdoneTriggered && loadingdoneDispatched &&
onloadingerrorTriggered && loadingerrorDispatched) {
doc.fonts.onloadingdone = null;
doc.fonts.onloadingerror = null;
doc.fonts.removeEventListener("loadingdone", doneListener);
doc.fonts.removeEventListener("loadingerror", errorListener);
aResolve();
}
}
var doneListener = function(aEvent) {
loadingdoneDispatched = true;
check();
};
doc.fonts.addEventListener("loadingdone", doneListener);
doc.fonts.onloadingdone = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.FontFaceSetLoadEvent.prototype, "loadingdone event should be a FontFaceSetLoadEvent object (TEST 29) (" + what + ")");
is(aEvent.fontfaces.length, 0, "the FontFaceSetLoadEvent should have an empty fontfaces array (TEST 29) (" + what + ")");
onloadingdoneTriggered = true;
check();
};
var errorListener = function(aEvent) {
is(Object.getPrototypeOf(aEvent), doc.defaultView.FontFaceSetLoadEvent.prototype, "loadingerror event should be a FontFaceSetLoadEvent object (TEST 29) (" + what + ")");
is(aEvent.fontfaces[0], face, "the FontFaceSetLoadEvent should have a fontfaces array with the FontFace in it (TEST 29) (" + what + ")");
loadingerrorDispatched = true;
check();
}
doc.fonts.addEventListener("loadingerror", errorListener);
doc.fonts.onloadingerror = function(aEvent) {
onloadingerrorTriggered = true;
check();
};
});
face = new win.FontFace("test", "url(x)");
face.load();
is(face.status, "loading", "FontFace should have status \"loading\" (TEST 29) (" + what + ")");
doc.fonts.add(face);
return face.loaded
.then(function() {
ok(false, "the FontFace should not load (TEST 29) (" + what + ")");
}, function(aError) {
is(face.status, "error", "FontFace should have status \"error\" (TEST 29) (" + what + ")");
return awaitEvents;
})
.then(function() {
doc.fonts.clear();
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 30) Test that a loadingdone event is dispatched when a FontFace
// that eventually becomes status "loaded" is added to the FontFaceSet.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }, i) {
p = p.then(function() {
var face;
var awaitEvents = new Promise(function(aResolve, aReject) {
var onloadingdoneTriggered = false, loadingdoneDispatched = false;
function check() {
if (onloadingdoneTriggered && loadingdoneDispatched) {
doc.fonts.onloadingdone = null;
doc.fonts.removeEventListener("loadingdone", doneListener);
aResolve();
}
}
var doneListener = function(aEvent) {
loadingdoneDispatched = true;
check();
};
doc.fonts.addEventListener("loadingdone", doneListener);
doc.fonts.onloadingdone = function(aEvent) {
is(aEvent.fontfaces[0], face, "the FontFaceSetLoadEvent should have a fontfaces array with the FontFace in it (TEST 30) (" + what + ")");
onloadingdoneTriggered = true;
check();
};
});
face = new win.FontFace("test", "url(BitPattern.woff?test30." + i + ")");
face.load();
is(face.status, "loading", "FontFace should have status \"loading\" (TEST 30) (" + what + ")");
doc.fonts.add(face);
return face.loaded
.then(function() {
is(face.status, "loaded", "FontFace should have status \"loaded\" (TEST 30) (" + what + ")");
return awaitEvents;
})
.then(function() {
doc.fonts.clear();
});
});
});
return p;
}).then(function() {
// (TEST 31) Test that a loadingdone event is dispatched when a FontFace
// with status "unloaded" is added to the FontFaceSet and load() is called
// on it.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }, i) {
p = p.then(function() {
var face;
var awaitEvents = new Promise(function(aResolve, aReject) {
var onloadingdoneTriggered = false, loadingdoneDispatched = false;
function check() {
if (onloadingdoneTriggered && loadingdoneDispatched) {
doc.fonts.onloadingdone = null;
doc.fonts.removeEventListener("loadingdone", doneListener);
aResolve();
}
}
var doneListener = function(aEvent) {
loadingdoneDispatched = true;
check();
};
doc.fonts.addEventListener("loadingdone", doneListener);
doc.fonts.onloadingdone = function(aEvent) {
is(aEvent.fontfaces[0], face, "the FontFaceSetLoadEvent should have a fontfaces array with the FontFace in it (TEST 31) (" + what + ")");
onloadingdoneTriggered = true;
check();
};
});
face = new win.FontFace("test", "url(BitPattern.woff?test31." + i + ")");
is(face.status, "unloaded", "FontFace should have status \"unloaded\" (TEST 31) (" + what + ")");
doc.fonts.add(face);
return face.load()
.then(function() {
return awaitEvents;
})
.then(function() {
is(face.status, "loaded", "FontFace should have status \"loaded\" (TEST 31) (" + what + ")");
doc.fonts.clear();
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 32) Test that pending restyles prevent document.fonts.status
// from becoming loaded.
var face = new FontFace("test", "url(neverending_font_load.sjs)");
face.load();
document.fonts.add(face);
is(document.fonts.status, "loading", "FontFaceSet.status after adding a loading FontFace (TEST 32)");
document.fonts.clear();
flushStyles();
is(document.fonts.status, "loaded", "FontFaceSet.status after clearing (TEST 32)");
document.fonts.add(face);
is(document.fonts.status, "loading", "FontFaceSet.status after adding a loading FontFace again (TEST 32)");
var div = document.querySelector("div");
div.style.color = "blue";
document.fonts.clear();
is(document.fonts.status, "loading", "FontFaceSet.status after clearing but when there is a pending restyle (TEST 32)");
return awaitRefresh() // wait for a refresh driver tick
.then(function() {
is(document.fonts.status, "loaded", "FontFaceSet.status after clearing and the restyle has been flushed (TEST 32)");
return document.fonts.ready;
});
}).then(function() {
// (TEST 33) Test that CSS-connected FontFace objects are created
// for @font-face rules in the document.
is(document.fonts.status, "loaded", "document.fonts.status should initially be loaded (TEST 33)");
var style = document.querySelector("style");
var ruleText = "@font-face { font-family: something; src: url(x); ";
Object.keys(nonDefaultValues).forEach(function(aDesc) {
ruleText += descriptorNames[aDesc] + ": " + nonDefaultValues[aDesc][0] + "; ";
});
ruleText += "}";
style.textContent = ruleText;
var rule = style.sheet.cssRules[0];
var all = Array.from(document.fonts);
is(all.length, 1, "document.fonts should contain one FontFace (TEST 33)");
var face = all[0];
is(face.family, "something", "FontFace should have correct family value (TEST 33)");
Object.keys(nonDefaultValues).forEach(function(aDesc) {
var ok_todo = aDesc == "variant" ? todo : ok;
ok_todo(face[aDesc] == nonDefaultValues[aDesc][1], "FontFace should have correct " + aDesc + " value (TEST 33)");
});
is(document.fonts.status, "loaded", "document.fonts.status should still be loaded (TEST 33)");
is(face.status, "unloaded", "FontFace.status should be unloaded (TEST 33)");
document.fonts.clear();
ok(document.fonts.has(face), "CSS-connected FontFace should not be removed from document.fonts when clear is called (TEST 33)");
is(document.fonts.delete(face), false, "attempting to remove CSS-connected FontFace from document.fonts should return false (TEST 33)");
ok(document.fonts.has(face), "CSS-connected FontFace should not be removed from document.fonts when delete is called (TEST 33)");
style.textContent = "";
ok(!document.fonts.has(face), "CSS-connected FontFace should be removed from document.fonts once the rule has been removed (TEST 33)");
is(document.fonts.status, "loaded", "document.fonts.status should still be loaded after rule is removed (TEST 33)");
is(face.status, "unloaded", "FontFace.status should still be unloaded after rule is removed (TEST 33)");
document.fonts.add(face);
ok(document.fonts.has(face), "previously CSS-connected FontFace should be able to be added to document.fonts (TEST 33)");
is(document.fonts.status, "loaded", "document.fonts.status should still be loaded after now disconnected FontFace is added (TEST 33)");
is(face.status, "unloaded", "FontFace.status should still be unloaded after now disconnected FontFace is added (TEST 33)");
document.fonts.delete(face);
ok(!document.fonts.has(face), "previously CSS-connected FontFace should be able to be removed from document.fonts (TEST 33)");
}).then(function() {
// (TEST 34) Test that descriptor getters for unspecified descriptors on
// CSS-connected FontFace objects return their default values.
var style = document.querySelector("style");
var ruleText = "@font-face { font-family: something; src: url(x); }";
style.textContent = ruleText;
var all = Array.from(document.fonts);
var face = all[0];
Object.keys(defaultValues).forEach(function(aDesc) {
is(face[aDesc], defaultValues[aDesc], "FontFace should return default value for " + aDesc + " (TEST 34)");
});
style.textContent = "";
}).then(function() {
// (TEST 35) Test that no loadingdone event is dispatched when a FontFace
// with "loaded" status is added to a "loaded" FontFaceSet.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
var gotLoadingDone = false;
doc.fonts.onloadingdone = function(aEvent) {
gotLoadingDone = true;
};
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" (TEST 35) (" + what + ")");
var face = new win.FontFace("test", fontData);
return face.loaded
.then(function() {
is(face.status, "loaded", "FontFace should have status \"loaded\" (TEST 35) (" + what + ")");
doc.fonts.add(face);
is(doc.fonts.status, "loaded", "document.fonts.status should still have status \"loaded\" (TEST 35) (" + what + ")");
return doc.fonts.ready;
})
.then(function() {
ok(!gotLoadingDone, "loadingdone event should not be dispatched (TEST 35) (" + what + ")");
doc.fonts.onloadingdone = null;
doc.fonts.clear();
});
});
});
return p;
}).then(function() {
// (TEST 36) Test that no loadingdone or loadingerror event is dispatched
// when a FontFace with "error" status is added to a "loaded" FontFaceSet.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
var doc = win.document;
p = p.then(function() {
var gotLoadingDone = false, gotLoadingError = false;
doc.fonts.onloadingdone = function(aEvent) {
gotLoadingDone = true;
};
doc.fonts.onloadingerror = function(aEvent) {
gotLoadingError = true;
};
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" (TEST 36) (" + what + ")");
var face = new win.FontFace("test", new ArrayBuffer(0));
return face.loaded
.then(function() {
ok(false, "FontFace should not have loaded (TEST 36) (" + what + ")");
}, function() {
is(face.status, "error", "FontFace should have status \"error\" (TEST 36) (" + what + ")");
doc.fonts.add(face);
is(doc.fonts.status, "loaded", "document.fonts.status should still have status \"loaded\" (TEST 36) (" + what + ")");
return doc.fonts.ready;
})
.then(function() {
ok(!gotLoadingDone, "loadingdone event should not be dispatched (TEST 36) (" + what + ")");
ok(!gotLoadingError, "loadingerror event should not be dispatched (TEST 36) (" + what + ")");
doc.fonts.onloadingdone = null;
doc.fonts.onloadingerror = null;
doc.fonts.clear();
});
});
});
return p;
}).then(function() {
// (TEST 37) Test that a FontFace only has one loadingdone event dispatched
// at the FontFaceSet containing it.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what}, i) {
p = p.then(function() {
return setTimeoutZero(); // wait for any previous events to be dispatched
}).then(function() {
var events = [], face, face2;
var awaitEvents = new Promise(function(aResolve, aReject) {
doc.fonts.onloadingdone = doc.fonts.onloadingerror = function(e) {
events.push(e);
if (events.length == 2) {
aResolve();
}
};
});
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" (TEST 37) (" + what + ")");
face = new win.FontFace("test", "url(BitPattern.woff?test37." + i + "a)");
face.load();
doc.fonts.add(face);
is(doc.fonts.status, "loading", "document.fonts.status should have status \"loading\" after first font added (TEST 37) (" + what + ")");
return doc.fonts.ready
.then(function() {
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" after first font loaded (TEST 37) (" + what + ")");
is(face.status, "loaded", "first FontFace should have status \"loaded\" (TEST 37) (" + what + ")");
face2 = new win.FontFace("test2", "url(BitPattern.woff?test37." + i + "b)");
face2.load();
doc.fonts.add(face2);
is(doc.fonts.status, "loading", "document.fonts.status should have status \"loading\" after second font added (TEST 37) (" + what + ")");
return doc.fonts.ready;
}).then(function() {
return awaitEvents;
}).then(function() {
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" after second font loaded (TEST 37) (" + what + ")");
is(face2.status, "loaded", "second FontFace should have status \"loaded\" (TEST 37) (" + what + ")");
is(events.length, 2, "should receive two events (TEST 37) (" + what + ")");
is(events[0].type, "loadingdone", "first event should be \"loadingdone\" (TEST 37) (" + what + ")");
is(events[0].fontfaces.length, 1, "first event should have 1 FontFace (TEST 37) (" + what + ")");
is(events[0].fontfaces[0], face, "first event should have the first FontFace");
is(events[1].type, "loadingdone", "second event should be \"loadingdone\" (TEST 37) (" + what + ")");
is(events[1].fontfaces.length, 1, "second event should only have 1 FontFace (TEST 37) (" + what + ")");
is(events[1].fontfaces[0], face2, "second event should have the second FontFace (TEST 37) (" + what + ")");
doc.fonts.onloadingdone = null;
doc.fonts.onloadingerror = null;
doc.fonts.clear();
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 38) Test that a FontFace only has one loadingerror event dispatched
// at the FontFaceSet containing it.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
return setTimeoutZero(); // wait for any previous events to be dispatched
}).then(function() {
var events = [], face, face2;
var awaitEvents = new Promise(function(aResolve, aReject) {
doc.fonts.onloadingdone = doc.fonts.onloadingerror = function(e) {
events.push(e);
if (events.length == 4) {
aResolve();
}
};
});
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" (TEST 38) (" + what + ")");
face = new win.FontFace("test", "url(x)");
face.load();
doc.fonts.add(face);
is(doc.fonts.status, "loading", "document.fonts.status should have status \"loading\" after first font added (TEST 38) (" + what + ")");
return doc.fonts.ready
.then(function() {
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" after first font failed to load (TEST 38) (" + what + ")");
is(face.status, "error", "first FontFace should have status \"error\" (TEST 38) (" + what + ")");
face2 = new win.FontFace("test2", "url(x)");
face2.load();
doc.fonts.add(face2);
is(doc.fonts.status, "loading", "document.fonts.status should have status \"loading\" after second font added (TEST 38) (" + what + ")");
return doc.fonts.ready;
}).then(function() {
return awaitEvents;
}).then(function() {
is(doc.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" after second font failed to load (TEST 38) (" + what + ")");
is(face2.status, "error", "second FontFace should have status \"error\" (TEST 38) (" + what + ")");
is(events.length, 4, "should receive four events (TEST 38) (" + what + ")");
is(events[0].type, "loadingdone", "first event should be \"loadingdone\" (TEST 38) (" + what + ")");
is(events[0].fontfaces.length, 0, "first event should have no FontFaces (TEST 38) (" + what + ")");
is(events[1].type, "loadingerror", "second event should be \"loadingerror\" (TEST 38) (" + what + ")");
is(events[1].fontfaces.length, 1, "second event should have 1 FontFace (TEST 38) (" + what + ")");
is(events[1].fontfaces[0], face, "second event should have the first FontFace");
is(events[2].type, "loadingdone", "third event should be \"loadingdone\" (TEST 38) (" + what + ")");
is(events[2].fontfaces.length, 0, "third event should have no FontFaces (TEST 38) (" + what + ")");
is(events[3].type, "loadingerror", "third event should be \"loadingerror\" (TEST 38) (" + what + ")");
is(events[3].fontfaces.length, 1, "third event should only have 1 FontFace (TEST 38) (" + what + ")");
is(events[3].fontfaces[0], face2, "third event should have the second FontFace");
doc.fonts.onloadingdone = null;
doc.fonts.onloadingerror = null;
doc.fonts.clear();
return doc.fonts.ready;
});
});
});
return p;
}).then(function() {
// (TEST 39) Test that a FontFace for an @font-face rule only has one
// loadingdone event dispatched at the FontFaceSet containing it.
var style, all, events, awaitEvents;
return setTimeoutZero() // wait for any previous events to be dispatched
.then(function() {
style = document.querySelector("style");
var ruleText = "@font-face { font-family: test; src: url(BitPattern.woff?test39a); } " +
"@font-face { font-family: test2; src: url(BitPattern.woff?test39b); }";
style.textContent = ruleText;
all = Array.from(document.fonts);
events = [];
awaitEvents = new Promise(function(aResolve, aReject) {
document.fonts.onloadingdone = document.fonts.onloadingerror = function(e) {
events.push(e);
if (events.length == 2) {
aResolve();
}
};
});
is(document.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" (TEST 39)");
all[0].load();
is(document.fonts.status, "loading", "document.fonts.status should have status \"loading\" after first font loading (TEST 39)");
return document.fonts.ready
}).then(function() {
is(document.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" after first font loaded (TEST 39)");
is(all[0].status, "loaded", "first FontFace should have status \"loaded\" (TEST 39)");
is(all[1].status, "unloaded", "second FontFace should have status \"unloaded\" (TEST 39)");
all[1].load();
is(document.fonts.status, "loading", "document.fonts.status should have status \"loading\" after second font loading (TEST 39)");
return document.fonts.ready;
}).then(function() {
return awaitEvents;
}).then(function() {
is(document.fonts.status, "loaded", "document.fonts.status should have status \"loaded\" after second font loaded (TEST 39)");
is(all[1].status, "loaded", "second FontFace should have status \"loaded\" (TEST 39)");
is(events.length, 2, "should receive two events (TEST 39)");
is(events[0].type, "loadingdone", "first event should be \"loadingdone\" (TEST 39)");
is(events[0].fontfaces.length, 1, "first event should have 1 FontFace (TEST 39)");
is(events[0].fontfaces[0], all[0], "first event should have the first FontFace");
is(events[1].type, "loadingdone", "second event should be \"loadingdone\" (TEST 39)");
is(events[1].fontfaces.length, 1, "second event should only have 1 FontFace (TEST 39)");
is(events[1].fontfaces[0], all[1], "second event should have the second FontFace (TEST 39)");
style.textContent = "";
document.fonts.onloadingdone = null;
document.fonts.onloadingerror = null;
document.fonts.clear();
return document.fonts.ready;
});
}).then(function() {
// (TEST 40) Test that an attempt to add the same FontFace object a second
// time to a FontFaceSet (where one of the FontFace objects is reflecting
// an @font-face rule) will be ignored.
// First set up a @font-face rule.
var style = document.querySelector("style");
style.textContent = "@font-face { font-family: something; src: url(x); }";
// Then add a couple of non-connected FontFace objects.
var f1 = new FontFace("test1", "url(x)");
var f2 = new FontFace("test2", "url(x)");
document.fonts.add(f1);
document.fonts.add(f2);
var all = Array.from(document.fonts);
var ruleFontFace = all[0];
is(all.length, 3, "number of FontFace objects in the FontFaceSet before duplicate add (TEST 40)");
is(all[1], f1, "first non-connected FontFace object in the FontFaceSet before duplicate add (TEST 40)");
is(all[2], f2, "second non-connected FontFace object in the FontFaceSet before duplicate add (TEST 40)");
document.fonts.add(f1);
all = Array.from(document.fonts);
is(all.length, 3, "number of FontFace objects in the FontFaceSet after duplicate add #1 (TEST 40)");
is(all[0], ruleFontFace, "rule-based FontFace object in the FontFaceSEt after duplicate add #1 (TEST 40)");
is(all[1], f1, "first non-connected FontFace object in the FontFaceSet after duplicate add #1 (TEST 40)");
is(all[2], f2, "second non-connected FontFace object in the FontFaceSet after duplicate add #1 (TEST 40)");
document.fonts.add(ruleFontFace);
all = Array.from(document.fonts);
is(all.length, 3, "number of FontFace objects in the FontFaceSet after duplicate add #2 (TEST 40)");
is(all[0], ruleFontFace, "rule-based FontFace object in the FontFaceSEt after duplicate add #2 (TEST 40)");
is(all[1], f1, "first non-connected FontFace object in the FontFaceSet after duplicate add #2 (TEST 40)");
is(all[2], f2, "second non-connected FontFace object in the FontFaceSet after duplicate add #2 (TEST 40)");
style.textContent = "";
document.fonts.clear();
}).then(function() {
// (TEST 41) Test that an attempt to add the same FontFace object a second
// time to a FontFaceSet (where none of the FontFace objects are reflecting
// an @font-face rule) will be ignored.
sources.forEach(function({ win, doc, what }) {
// Add a couple of non-connected FontFace objects.
var f1 = new win.FontFace("test1", "url(x)");
var f2 = new win.FontFace("test2", "url(x)");
doc.fonts.add(f1);
doc.fonts.add(f2);
var all = Array.from(doc.fonts);
is(all.length, 2, "number of FontFace objects in the FontFaceSet before duplicate add (TEST 41) (" + what + ")");
is(all[0], f1, "first non-connected FontFace object in the FontFaceSet before duplicate add (TEST 41) (" + what + ")");
is(all[1], f2, "second non-connected FontFace object in the FontFaceSet before duplicate add (TEST 41) (" + what + ")");
doc.fonts.add(f1);
all = Array.from(doc.fonts);
is(all.length, 2, "number of FontFace objects in the FontFaceSet after duplicate add (TEST 41) (" + what + ")");
is(all[0], f1, "first non-connected FontFace object in the FontFaceSet after duplicate add (TEST 41) (" + what + ")");
is(all[1], f2, "second non-connected FontFace object in the FontFaceSet after duplicate add (TEST 41) (" + what + ")");
doc.fonts.clear();
});
}).then(function() {
// (TEST 42) Test that adding a FontFace to multiple FontFaceSets and then
// loading it updates the status of all FontFaceSets.
var face = new FontFace("test", "url(x)");
sourceDocuments.forEach(function({ doc, what }) {
doc.fonts.add(face);
});
sourceDocuments.forEach(function({ doc, what }) {
is(doc.fonts.status, "loaded", what + ".fonts.status before loading (TEST 42)");
});
face.load();
sourceDocuments.forEach(function({ doc, what }) {
is(doc.fonts.status, "loading", what + ".fonts.status after loading started (TEST 42)");
});
return Promise.all(sourceDocuments.map(function({ doc }) { return doc.fonts.ready; }))
.then(function() {
is(face.status, "error", "FontFace.status after loading finished (TEST 42)");
sourceDocuments.forEach(function({ doc, what }) {
is(doc.fonts.status, "loaded", what + ".fonts.status after loading finished (TEST 42)");
});
sourceDocuments.forEach(function({ doc, what }) {
doc.fonts.clear();
});
});
}).then(function() {
// (TEST 43) Test the check method with platform fonts and some
// degenerate cases.
sourceDocuments.forEach(function({ doc, what }) {
// Invalid font shorthands should throw a SyntaxError.
try {
doc.fonts.check("Helvetica");
ok(false, "check should throw when a syntactically invalid font shorthand is given (TEST 43) (" + what + ")");
} catch (ex) {
is(ex.name, "SyntaxError", "exception name when check is called with a syntactically invalid font shorthand (TEST 43) (" + what + ")");
}
// System fonts should throw a SyntaxError.
try {
doc.fonts.check("caption");
ok(false, "check should throw when a system font value is given (TEST 43) (" + what + ")");
} catch (ex) {
is(ex.name, "SyntaxError", "exception name when check is called with a system font value (TEST 43) (" + what + ")");
}
// CSS-wide keywords should throw a SyntaxError.
try {
doc.fonts.check("inherit");
ok(false, "check should throw when a CSS-wide keyword is given (TEST 43) (" + what + ")");
} catch (ex) {
is(ex.name, "SyntaxError", "exception name when check is called with a CSS-wide keyword (TEST 43) (" + what + ")");
}
// CSS variables should throw a SyntaxError.
try {
doc.fonts.check("16px var(--family)");
ok(false, "check should throw when CSS variables are used (TEST 43) (" + what + ")");
} catch (ex) {
is(ex.name, "SyntaxError", "exception name when check is called with CSS variables (TEST 43) (" + what + ")");
}
// No matching font family names => return true.
is(doc.fonts.check("16px NonExistentFont1, NonExistentFont2"), true, "check return value when no matching font family names are used (TEST 43) (" + what + ")");
// Matching platform font family name => return true.
is(doc.fonts.check("16px NonExistentFont, " + likelyPlatformFonts), true, "check return value when a matching platform font family name is used (TEST 43) (" + what + ")");
// Matching platform font family name, but using a different test
// strings. (Platform fonts always return true from check, regardless
// of the actual glyphs present.)
[
{ test: "\0", desc: "a single non-matching glyph" },
{ test: "A\0", desc: "a matching and a non-matching glyph" },
{ test: "A", desc: "a matching glyph" },
{ test: "AB", desc: "multiple matching glyphs" }
].forEach(function({ test, desc }) {
is(doc.fonts.check("16px " + likelyPlatformFonts, test), true, "check return value when a matching platform font family name is used but with " + desc + " (TEST 43) (" + what + ")");
});
// No matching font family name, but an empty test string.
is(doc.fonts.check("16px NonExistentFont", ""), true, "check return value with a non-matching font family name and an empty test string (TEST 43) (" + what + ")");
// Matching platform font family name, but empty test string.
is(doc.fonts.check("16px " + likelyPlatformFonts, ""), true, "check return value with an empty test string (TEST 43) (" + what + ")");
});
}).then(function() {
// (TEST 44) Test the check method with script-created FontFaces.
var tests = [
// at least one matching FontFace is not loaded ==> false
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "unloaded" }] },
{ result: false, font: "16px Test", faces: [{ family: "SecondTest", status: "loaded" }, { family: "Test", status: "unloaded" }] },
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "unloaded" }, { family: "Test", status: "loaded" }] },
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "loading" }] },
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "error" }] },
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "unloaded", style: "italic" }] },
{ result: false, font: "bold 16px Test", faces: [{ family: "Test", status: "loaded", weight: "600" }, { family: "Test", status: "unloaded", weight: "bold" }] },
{ result: false, font: "16px Test, SecondTest", faces: [{ family: "Test", status: "loaded" }, { family: "SecondTest", status: "unloaded" }] },
{ result: false, font: "16px Test, " + likelyPlatformFonts + ", SecondTest, sans-serif", faces: [{ family: "Test", status: "loaded" }, { family: "SecondTest", status: "unloaded" }] },
// all matching FontFaces are loaded ==> true
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded" }, { family: "Test", status: "loaded" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded" }, { family: "Test", status: "unloaded", unicodeRange: "U+4E0A" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded" }, { family: "Test", status: "error", unicodeRange: "U+4E0A" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded" }, { family: "Irrelevant", status: "unloaded" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", style: "italic" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", weight: "bold" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", stretch: "condensed" }] },
{ result: true, font: "bold 16px Test", faces: [{ family: "Test", status: "loaded", weight: "bold" }, { family: "Test", status: "unloaded", weight: "600" }] },
{ result: true, font: "16px Test, " + likelyPlatformFonts + ", SecondTest, sans-serif", faces: [{ family: "Test", status: "loaded" }, { family: "SecondTest", status: "loaded" }] },
// no matching FontFaces at all ==> true
{ result: true, font: "16px Test", faces: [] },
{ result: true, font: "16px Test", faces: [{ family: "Irrelevant", status: "unloaded" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "unloaded", unicodeRange: "U+4E0A" }] },
{ result: true, font: "16px Test, " + likelyPlatformFonts + ", SecondTest, sans-serif", faces: [{ family: "ThirdTest", status: "loaded" }] },
// matching FontFace for one sample text character is loaded but
// not the other ==> false
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "loaded", unicodeRange: "U+61" }, { family: "Test", status: "unloaded", unicodeRange: "U+62" }] },
// matching FontFaces for separate sample text characters are all
// loaded ==> true
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", unicodeRange: "U+61" }, { family: "Test", status: "loaded", unicodeRange: "U+62" }] },
];
sources.forEach(function({ win, doc, what }, i) {
tests.forEach(function({ result, font, faces }, j) {
faces.forEach(function(f, k) {
var fontFace;
if (f.status == "loaded") {
fontFace = new win.FontFace(f.family, fontData, f);
} else if (f.status == "error") {
fontFace = new win.FontFace(f.family, new ArrayBuffer(0), f);
} else {
fontFace = new win.FontFace(f.family, "url(BitPattern.woff?test44." + [i, j, k] + ")", f);
if (f.status == "loading") {
fontFace.load();
}
}
is(fontFace.status, f.status, "status of newly created FontFace " + [j, k] + " (TEST 44) (" + what + ")");
doc.fonts.add(fontFace);
});
is(doc.fonts.check(font, "ab"), result, "check return value for subtest " + j + " (TEST 44) (" + what + ")");
doc.fonts.clear();
});
});
}).then(function() {
// (TEST 45) Test the load method with platform fonts and some
// degenerate cases.
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }) {
p = p.then(function() {
// Invalid font shorthands should reject the promise with a SyntaxError.
return doc.fonts.load("Helvetica").then(function() {
ok(false, "load should reject when a syntactically invalid font shorthand is given (TEST 45) (" + what + ")");
}, function(ex) {
is(ex.name, "SyntaxError", "exception name when load is called with a syntactically invalid font shorthand (TEST 45) (" + what + ")");
});
});
p = p.then(function() {
// System fonts should reject with a SyntaxError.
return doc.fonts.load("caption").then(function() {
ok(false, "load should throw when a system font value is given (TEST 45) (" + what + ")");
}, function(ex) {
is(ex.name, "SyntaxError", "exception name when load is called with a system font value (TEST 45) (" + what + ")");
});
});
p = p.then(function() {
// CSS-wide keywords should reject with a SyntaxError.
return doc.fonts.load("inherit").then(function() {
ok(false, "load should throw when a CSS-wide keyword is given (TEST 45) (" + what + ")");
}, function(ex) {
is(ex.name, "SyntaxError", "exception name when load is called with a CSS-wide keyword (TEST 45) (" + what + ")");
});
});
p = p.then(function() {
// CSS variables should throw a SyntaxError.
return doc.fonts.load("16px var(--family)").then(function() {
ok(false, "load should throw when CSS variables are used (TEST 45) (" + what + ")");
}, function(ex) {
is(ex.name, "SyntaxError", "exception name when load is called with CSS variables (TEST 45) (" + what + ")");
});
});
p = p.then(function() {
// No matching font family names => return true.
return doc.fonts.load("16px NonExistentFont1, NonExistentFont2").then(function(result) {
is(result.length, 0, "load resolves with an emtpy array when no matching font family names are used (TEST 45) (" + what + ")");
});
});
p = p.then(function() {
// Matching platform font family name => return true.
return doc.fonts.load("16px NonExistentFont1, " + likelyPlatformFonts).then(function(result) {
is(result.length, 0, "load resolves with an emtpy array when no matching font family names are used (TEST 45) (" + what + ")");
});
});
// Matching platform font family name, but using a different test
// strings. (Platform fonts always return true from load, regardless
// of the actual glyphs present.)
[
{ sample: "\0", desc: "a single non-matching glyph" },
{ sample: "A\0", desc: "a matching and a non-matching glyph" },
{ sample: "A", desc: "a matching glyph" },
{ sample: "AB", desc: "multiple matching glyphs" }
].forEach(function({ sample, desc }) {
p = p.then(function() {
return doc.fonts.load("16px " + likelyPlatformFonts, sample).then(function(result) {
is(result.length, 0, "load resolves with an empty array when a matching platform font family name is used but with " + desc + " (TEST 45) (" + what + ")");
});
});
});
p = p.then(function() {
// No matching font family name, but an empty test string.
return doc.fonts.load("16px NonExistentFont", "").then(function(result) {
is(result.length, 0, "load resolves with an empty array when a non-matching platform font family name and an empty test string is used (TEST 45) (" + what + ")");
});
});
p = p.then(function() {
// Matching font family name, but an empty test string.
return doc.fonts.load("16px " + likelyPlatformFonts, "").then(function(result) {
is(result.length, 0, "load resolves with an empty array when a matching platform font family name and an empty test string is used (TEST 45) (" + what + ")");
});
});
});
return p;
}).then(function() {
// (TEST 46) Test the load method with script-created FontFaces.
var tests = [
// at least one matching FontFace is not yet loaded, but will load ==> resolve
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "unloaded", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "SecondTest", status: "loaded" }, { family: "Test", status: "unloaded", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "unloaded", included: true }, { family: "Test", status: "loaded", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loading", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "unloaded", style: "italic", included: true }] },
{ result: true, font: "bold 16px Test", faces: [{ family: "Test", status: "unloaded", weight: "600", included: true }] },
{ result: true, font: "bold 16px Test", faces: [{ family: "Test", status: "unloaded", weight: "600" }, { family: "Test", status: "unloaded", weight: "bold", included: true }] },
{ result: true, font: "16px Test, SecondTest", faces: [{ family: "Test", status: "loaded", included: true }, { family: "SecondTest", status: "unloaded", included: true }] },
{ result: true, font: "16px Test, " + likelyPlatformFonts + ", SecondTest, sans-serif", faces: [{ family: "Test", status: "loaded", included: true }, { family: "SecondTest", status: "unloaded", included: true }] },
// at least one matching FontFace is in an error state ==> reject
{ result: false, font: "16px Test", faces: [{ family: "Test", status: "unloaded" }, { family: "Test", status: "error" }] },
// all matching FontFaces are already loaded ==> resolve
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", included: true }, { family: "Test", status: "loaded", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", included: true }, { family: "Test", status: "unloaded", unicodeRange: "U+4E0A" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", included: true }, { family: "Test", status: "error", unicodeRange: "U+4E0A" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", included: true }, { family: "Irrelevant", status: "unloaded" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", style: "italic", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", weight: "bold", included: true }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", stretch: "condensed", included: true }] },
{ result: true, font: "bold 16px Test", faces: [{ family: "Test", status: "loaded", weight: "bold", included: true }, { family: "Test", status: "loaded", weight: "600" }] },
{ result: true, font: "bold 16px Test", faces: [{ family: "Test", status: "loaded", weight: "600" }, { family: "Test", status: "loaded", weight: "bold", included: true }] },
{ result: true, font: "16px Test, " + likelyPlatformFonts + ", SecondTest, sans-serif", faces: [{ family: "Test", status: "loaded", included: true }, { family: "SecondTest", status: "loaded", included: true }] },
// no matching FontFaces at all ==> resolve
{ result: true, font: "16px Test", faces: [] },
{ result: true, font: "16px Test", faces: [{ family: "Irrelevant", status: "unloaded" }] },
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "unloaded", unicodeRange: "U+4E0A" }] },
{ result: true, font: "16px Test, " + likelyPlatformFonts + ", SecondTest, sans-serif", faces: [{ family: "ThirdTest", status: "loaded" }] },
// matching FontFace for one sample text character is already loaded but
// the other is not (but will) ==> resolve
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", unicodeRange: "U+61", included: true }, { family: "Test", status: "unloaded", unicodeRange: "U+62", included: true }] },
// matching FontFaces for separate sample text characters are all
// loaded ==> resolve
{ result: true, font: "16px Test", faces: [{ family: "Test", status: "loaded", unicodeRange: "U+61", included: true }, { family: "Test", status: "loaded", unicodeRange: "U+62", included: true }] },
];
var p = Promise.resolve();
sources.forEach(function({ win, doc, what }, i) {
tests.forEach(function({ result, font, faces }, j) {
p = p.then(function() {
var fontFaces = [];
faces.forEach(function(f, k) {
var fontFace;
if (f.status == "loaded") {
fontFace = new win.FontFace(f.family, fontData, f);
} else if (f.status == "error") {
fontFace = new win.FontFace(f.family, new ArrayBuffer(0), f);
} else {
fontFace = new win.FontFace(f.family, "url(BitPattern.woff?test46." + [i, j, k] + ")", f);
if (f.status == "loading") {
fontFace.load();
}
}
is(fontFace.status, f.status, "status of newly created FontFace " + [j, k] + " (TEST 46) (" + what + ")");
doc.fonts.add(fontFace);
fontFaces.push(fontFace);
});
return doc.fonts.load(font, "ab").then(function(array) {
ok(result, "load should resolve for subtest " + j + " (TEST 46) (" + what + ")");
var expected = [];
for (var k = 0; k < faces.length; k++) {
if (faces[k].included) {
expected.push(fontFaces[k]);
}
}
is(array.length, expected.length, "length of array load resolves with for subtest " + j + " (TEST 46) (" + what + ")");
for (var k = 0; k < array.length; k++) {
is(array[k], expected[k], "value in array[" + k + "] load resolves with for subtest " + j + " (TEST 46) (" + what + ")");
}
}, function(ex) {
ok(!result, "load should not resolve for subtest " + j + " (TEST 46) (" + what + ")");
is(ex.name, "SyntaxError", "exception load's return value is rejected with for subtest " + j + " (TEST 46) (" + what + ")");
}).then(function() {
doc.fonts.clear();
});
});
});
});
return p;
}).then(function() {
// (TEST 47) Test that CSS-connected FontFaces can't be added to other
// FontFaceSets.
var style = document.querySelector("style");
style.textContent = "@font-face { font-family: something; src: url(x); }";
var rule = style.sheet.cssRules[0];
var all = Array.from(document.fonts);
is(all.length, 1, "document.fonts should contain one FontFace (TEST 47)");
var face = all[0];
sourceDocuments.forEach(function({ doc, what }) {
if (doc == document) {
return;
}
var exceptionName;
try {
doc.fonts.add(face);
ok(false, "add should throw when attempting to add a CSS-connected FontFace to another FontFaceSet (TEST 47) (" + what + ")");
} catch (ex) {
is(ex.name, "InvalidModificationError", "exception name when add is called with a CSS-connected FontFace from another FontFaceSet (TEST 47) (" + what + ")");
}
});
style.textContent = "";
document.body.offsetTop;
sourceDocuments.forEach(function({ doc, what }) {
if (doc == document) {
return;
}
ok(!doc.fonts.has(face), "FontFaceSet initially doesn't have the FontFace (TEST 47) (" + what + ")");
doc.fonts.add(face);
ok(doc.fonts.has(face), "add should allow a previously CSS-connected FontFace to be added to another FontFaceSet (TEST 47) (" + what + ")");
doc.fonts.clear();
});
document.fonts.clear();
}).then(function() {
// (TEST 48) Test that FontFaceSets that hold a combination of FontFaces
// from different documents expose the right set of FontFaces.
// Expected FontFaceSet contents.
var expected = {
document: [],
vdocument: [],
ndocument: [],
};
// Create a CSS-connected FontFace in the top-level document.
var style = document.querySelector("style");
style.textContent = "@font-face { font-family: something; src: url(x); }";
var all = Array.from(document.fonts);
is(all.length, 1, "document.fonts should contain one FontFace (TEST 48)");
all[0]._description = "CSS-connected in document";
expected.document.push(all[0]);
// Create a CSS-connected FontFace in the visible iframe.
var vstyle = vdocument.querySelector("style");
vstyle.textContent = "@font-face { font-family: somethingelse; src: url(x); }";
all = Array.from(vdocument.fonts);
all[0]._description = "CSS-connected in vdocument";
is(all.length, 1, "vdocument.fonts should contain one FontFace (TEST 48)");
expected.vdocument.push(all[0]);
// Create a FontFace in each window and add it to each document's FontFaceSet.
var faces = [];
sourceWindows.forEach(function({ win, what: whatWin }, index) {
var f = new win.FontFace("test" + index, "url(x)");
sourceDocuments.forEach(function({ doc, what: whatDoc }) {
doc.fonts.add(f);
expected[whatDoc].push(f);
f._description = whatWin + "/" + whatDoc;
});
});
sourceDocuments.forEach(function({ doc, what }) {
let allFonts = Array.from(doc.fonts);
is(expected[what].length, allFonts.length, "expected FontFaceSet size (TEST 48) (" + what + ")");
for (let i = 0; i < expected[what].length; i++) {
is(expected[what][i], allFonts[i], "expected FontFace (" + expected[what][i]._description + ") at index " + i + " (TEST 48) (" + what + ")");
}
});
vstyle.textContent = "";
style.textContent = "";
sourceDocuments.forEach(function({ doc }) { doc.fonts.clear(); });
}).then(function() {
// (TEST LAST) Test that a pending style sheet load prevents
// document.fonts.status from being set to "loaded".
// First, add a FontFace to document.fonts that will load soon.
var face = new FontFace("test", "url(BitPattern.woff?testlast)");
face.load();
document.fonts.add(face);
// Next, add a style sheet reference.
var link = document.createElement("link");
link.rel = "stylesheet";
link.href = "neverending_stylesheet_load.sjs";
link.type = "text/css";
document.head.appendChild(link);
return setTimeoutZero() // wait for the style sheet to start loading
.then(function() {
document.fonts.clear();
is(document.fonts.status, "loading", "FontFaceSet.status when the FontFaceSet has been cleared of loading FontFaces but there is a pending style sheet load (TEST LAST)");
document.head.removeChild(link);
// XXX Removing the <link> element won't cancel the load of the
// style sheet, so we can't do that to test that
// document.fonts.ready is resolved once there are no more
// loading style sheets.
});
// NOTE: It is important that this style sheet test comes last in the file,
// as the neverending style sheet load will interfere with subsequent
// sub-tests.
}).then(function() {
// End of the tests.
SimpleTest.finish();
}, function(aError) {
// Something failed.
ok(false, "Something failed: " + aError);
SimpleTest.finish();
});
}
SimpleTest.waitForExplicitFinish();
SimpleTest.requestLongerTimeout(5);
</script>
<style></style>
<div></div>
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