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function synthTestQueue(aTestArgs, aEndFunc) {
var utterances = [];
for (var i in aTestArgs) {
var uargs = aTestArgs[i][0];
var win = uargs.win || window;
var u = new win.SpeechSynthesisUtterance(uargs.text);
if (uargs.args) {
for (var attr in uargs.args) {
u[attr] = uargs.args[attr];
}
}
function onend_handler(e) {
is(e.target, utterances.shift(), "Target matches utterances");
ok(!speechSynthesis.speaking, "speechSynthesis is not speaking.");
if (utterances.length) {
ok(speechSynthesis.pending, "other utterances queued");
} else {
ok(!speechSynthesis.pending, "queue is empty, nothing pending.");
if (aEndFunc) {
aEndFunc();
}
}
}
u.addEventListener(
"start",
(function(expectedUri) {
return function(e) {
if (expectedUri) {
var chosenVoice = SpecialPowers.wrap(e).target.chosenVoiceURI;
is(chosenVoice, expectedUri, "Incorrect URI is used");
}
};
})(aTestArgs[i][1] ? aTestArgs[i][1].uri : null)
);
u.addEventListener("end", onend_handler);
u.addEventListener("error", onend_handler);
u.addEventListener(
"error",
(function(expectedError) {
return function onerror_handler(e) {
ok(
expectedError,
"Error in speech utterance '" + e.target.text + "'"
);
};
})(aTestArgs[i][1] ? aTestArgs[i][1].err : false)
);
utterances.push(u);
win.speechSynthesis.speak(u);
}
ok(!speechSynthesis.speaking, "speechSynthesis is not speaking yet.");
ok(speechSynthesis.pending, "speechSynthesis has an utterance queued.");
}
function loadFrame(frameId) {
return new Promise(function(resolve, reject) {
var frame = document.getElementById(frameId);
frame.addEventListener("load", function(e) {
frame.contentWindow.document.title = frameId;
resolve(frame);
});
frame.src = "about:blank";
});
}
function waitForVoices(win) {
return new Promise(resolve => {
function resolver() {
if (win.speechSynthesis.getVoices().length) {
win.speechSynthesis.removeEventListener("voiceschanged", resolver);
resolve();
}
}
win.speechSynthesis.addEventListener("voiceschanged", resolver);
resolver();
});
}
function loadSpeechTest(fileName, prefs, frameId = "testFrame") {
loadFrame(frameId).then(frame => {
waitForVoices(frame.contentWindow).then(
() => (document.getElementById("testFrame").src = fileName)
);
});
}
function testSynthState(win, expectedState) {
for (var attr in expectedState) {
is(
win.speechSynthesis[attr],
expectedState[attr],
win.document.title + ": '" + attr + '" does not match'
);
}
}
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