react-say
Version:
[](https://badge.fury.io/js/react-say) [](https://travis-ci.org/compulim/react-say)
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JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _createCustomEvent = _interopRequireDefault(require("./createCustomEvent"));
var _createDeferred = _interopRequireDefault(require("./createDeferred"));
var _createErrorEvent = _interopRequireDefault(require("./createErrorEvent"));
function speakUtterance(_x, _x2, _x3) {
return _speakUtterance.apply(this, arguments);
}
function _speakUtterance() {
_speakUtterance = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee4(ponyfill, utterance, startCallback) {
var speechSynthesis, startDeferred, errorDeferred, endDeferred, startEvent, finishedSpeaking, endPromise, endEvent;
return _regenerator["default"].wrap(function _callee4$(_context4) {
while (1) {
switch (_context4.prev = _context4.next) {
case 0:
speechSynthesis = ponyfill.speechSynthesis;
startDeferred = (0, _createDeferred["default"])();
errorDeferred = (0, _createDeferred["default"])();
endDeferred = (0, _createDeferred["default"])();
utterance.addEventListener('end', endDeferred.resolve);
utterance.addEventListener('error', errorDeferred.resolve);
utterance.addEventListener('start', startDeferred.resolve); // if (speechSynthesis.speaking) {
// console.warn(`ASSERTION: speechSynthesis.speaking should not be truthy before we call speak`);
// }
speechSynthesis.speak(utterance);
_context4.next = 10;
return Promise.race([errorDeferred.promise, startDeferred.promise]);
case 10:
startEvent = _context4.sent;
if (!(startEvent.type === 'error')) {
_context4.next = 13;
break;
}
throw startEvent.error;
case 13:
endPromise = Promise.race([errorDeferred.promise, endDeferred.promise]);
startCallback && startCallback( /*#__PURE__*/(0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee3() {
return _regenerator["default"].wrap(function _callee3$(_context3) {
while (1) {
switch (_context3.prev = _context3.next) {
case 0:
if (finishedSpeaking) {
_context3.next = 4;
break;
}
speechSynthesis.cancel();
_context3.next = 4;
return endPromise;
case 4:
case "end":
return _context3.stop();
}
}
}, _callee3);
})));
_context4.next = 17;
return endPromise;
case 17:
endEvent = _context4.sent;
finishedSpeaking = true; // if (speechSynthesis.speaking) {
// console.warn(`ASSERTION: speechSynthesis.speaking should not be truthy after speak is stopped`);
// }
// console.debug(`ENDED: ${ utterance.text }`);
if (!(endEvent.type === 'error')) {
_context4.next = 21;
break;
}
throw endEvent.error;
case 21:
case "end":
return _context4.stop();
}
}
}, _callee4);
}));
return _speakUtterance.apply(this, arguments);
}
var QueuedUtterance = /*#__PURE__*/function () {
function QueuedUtterance(ponyfill, utterance, _ref) {
var onEnd = _ref.onEnd,
onError = _ref.onError,
onStart = _ref.onStart;
(0, _classCallCheck2["default"])(this, QueuedUtterance);
this._cancelled = false;
this._deferred = (0, _createDeferred["default"])();
this._onEnd = onEnd;
this._onError = onError;
this._onStart = onStart;
this._ponyfill = ponyfill;
this._speaking = false;
this._utterance = utterance;
this.promise = this._deferred.promise;
}
(0, _createClass2["default"])(QueuedUtterance, [{
key: "cancel",
value: function () {
var _cancel = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
return _regenerator["default"].wrap(function _callee$(_context) {
while (1) {
switch (_context.prev = _context.next) {
case 0:
this._cancelled = true;
_context.t0 = this._cancel;
if (!_context.t0) {
_context.next = 5;
break;
}
_context.next = 5;
return this._cancel();
case 5:
case "end":
return _context.stop();
}
}
}, _callee, this);
}));
function cancel() {
return _cancel.apply(this, arguments);
}
return cancel;
}()
}, {
key: "speak",
value: function speak() {
var _this = this;
if (this._speaking) {
console.warn("ASSERTION: QueuedUtterance is already speaking or has spoken.");
}
this._speaking = true;
(0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee2() {
return _regenerator["default"].wrap(function _callee2$(_context2) {
while (1) {
switch (_context2.prev = _context2.next) {
case 0:
if (!_this._cancelled) {
_context2.next = 2;
break;
}
throw new Error('cancelled');
case 2:
_context2.next = 4;
return speakUtterance(_this._ponyfill, _this._utterance, function (cancel) {
if (_this._cancelled) {
cancel();
throw new Error('cancelled');
} else {
_this._cancel = cancel;
_this._onStart && _this._onStart((0, _createCustomEvent["default"])('start'));
}
});
case 4:
if (!_this._cancelled) {
_context2.next = 6;
break;
}
throw new Error('cancelled');
case 6:
case "end":
return _context2.stop();
}
}
}, _callee2);
}))().then(function () {
_this._onEnd && _this._onEnd((0, _createCustomEvent["default"])('end'));
_this._deferred.resolve();
}, function (error) {
_this._onError && _this._onError((0, _createErrorEvent["default"])(error));
_this._deferred.reject(error);
});
return this.promise;
}
}]);
return QueuedUtterance;
}();
exports["default"] = QueuedUtterance;
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createCustomEvent from './createCustomEvent';\nimport createDeferred from './createDeferred';\nimport createErrorEvent from './createErrorEvent';\n\nasync function speakUtterance(ponyfill, utterance, startCallback) {\n  const { speechSynthesis } = ponyfill;\n\n  const startDeferred = createDeferred();\n  const errorDeferred = createDeferred();\n  const endDeferred = createDeferred();\n\n  utterance.addEventListener('end', endDeferred.resolve);\n  utterance.addEventListener('error', errorDeferred.resolve);\n  utterance.addEventListener('start', startDeferred.resolve);\n\n  // if (speechSynthesis.speaking) {\n  //   console.warn(`ASSERTION: speechSynthesis.speaking should not be truthy before we call speak`);\n  // }\n\n  speechSynthesis.speak(utterance);\n\n  const startEvent = await Promise.race([\n    errorDeferred.promise,\n    startDeferred.promise\n  ]);\n\n  if (startEvent.type === 'error') {\n    throw startEvent.error;\n  }\n\n  let finishedSpeaking;\n  const endPromise = Promise.race([\n    errorDeferred.promise,\n    endDeferred.promise\n  ]);\n\n  startCallback && startCallback(async () => {\n    if (!finishedSpeaking) {\n      speechSynthesis.cancel();\n      await endPromise;\n    }\n  });\n\n  const endEvent = await endPromise;\n\n  finishedSpeaking = true;\n\n  // if (speechSynthesis.speaking) {\n  //   console.warn(`ASSERTION: speechSynthesis.speaking should not be truthy after speak is stopped`);\n  // }\n\n  // console.debug(`ENDED: ${ utterance.text }`);\n\n  if (endEvent.type === 'error') {\n    throw endEvent.error;\n  }\n}\n\nexport default class QueuedUtterance {\n  constructor(ponyfill, utterance, { onEnd, onError, onStart }) {\n    this._cancelled = false;\n    this._deferred = createDeferred();\n    this._onEnd = onEnd;\n    this._onError = onError;\n    this._onStart = onStart;\n    this._ponyfill = ponyfill;\n    this._speaking = false;\n    this._utterance = utterance;\n\n    this.promise = this._deferred.promise;\n  }\n\n  async cancel() {\n    this._cancelled = true;\n    this._cancel && await this._cancel();\n  }\n\n  speak() {\n    if (this._speaking) {\n      console.warn(`ASSERTION: QueuedUtterance is already speaking or has spoken.`);\n    }\n\n    this._speaking = true;\n\n    (async () => {\n      if (this._cancelled) {\n        throw new Error('cancelled');\n      }\n\n      await speakUtterance(this._ponyfill, this._utterance, cancel => {\n        if (this._cancelled) {\n          cancel();\n\n          throw new Error('cancelled');\n        } else {\n          this._cancel = cancel;\n          this._onStart && this._onStart(createCustomEvent('start'));\n        }\n      });\n\n      if (this._cancelled) {\n        throw new Error('cancelled');\n      }\n    })().then(() => {\n      this._onEnd && this._onEnd(createCustomEvent('end'));\n      this._deferred.resolve();\n    }, error => {\n      this._onError && this._onError(createErrorEvent(error));\n      this._deferred.reject(error);\n    });\n\n    return this.promise;\n  }\n}\n"]}