aws-amplify-react
Version:
AWS Amplify is a JavaScript library for Frontend and mobile developers building cloud-enabled applications.
443 lines • 20.5 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
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switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
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op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var React = require("react");
var react_1 = require("react");
var AmplifyUI_1 = require("../AmplifyUI");
var AmplifyTheme_1 = require("../AmplifyTheme");
var core_1 = require("@aws-amplify/core");
var interactions_1 = require("@aws-amplify/interactions");
var core_2 = require("@aws-amplify/core");
var logger = new core_2.ConsoleLogger('ChatBot');
var styles = {
itemMe: {
padding: 10,
fontSize: 12,
color: 'gray',
marginTop: 4,
textAlign: 'right'
},
itemBot: {
fontSize: 12,
textAlign: 'left'
},
list: {
height: '300px',
overflow: 'auto',
},
textInput: Object.assign({}, AmplifyTheme_1.Input, {
display: 'inline-block',
width: 'calc(100% - 90px - 15px)',
}),
button: Object.assign({}, AmplifyTheme_1.Button, {
width: '60px',
float: 'right',
}),
mic: Object.assign({}, AmplifyTheme_1.Button, {
width: '40px',
float: 'right',
})
};
var STATES = {
INITIAL: { MESSAGE: 'Type your message or click 🎤', ICON: '🎤' },
LISTENING: { MESSAGE: 'Listening... click 🔴 again to cancel', ICON: '🔴' },
SENDING: { MESSAGE: 'Please wait...', ICON: '🔊' },
SPEAKING: { MESSAGE: 'Speaking...', ICON: '...' }
};
var defaultVoiceConfig = {
silenceDetectionConfig: {
time: 2000,
amplitude: 0.2
}
};
var audioControl;
var ChatBot = /** @class */ (function (_super) {
__extends(ChatBot, _super);
function ChatBot(props) {
var _this = _super.call(this, props) || this;
if (_this.props.voiceEnabled) {
require('./aws-lex-audio.js');
audioControl = new global.LexAudio.audioControl();
}
if (!_this.props.textEnabled && _this.props.voiceEnabled) {
STATES.INITIAL.MESSAGE = 'Click the mic button';
styles.textInput = Object.assign({}, AmplifyTheme_1.Input, {
display: 'inline-block',
width: 'calc(100% - 40px - 15px)',
});
}
if (_this.props.textEnabled && !_this.props.voiceEnabled) {
STATES.INITIAL.MESSAGE = 'Type a message';
styles.textInput = Object.assign({}, AmplifyTheme_1.Input, {
display: 'inline-block',
width: 'calc(100% - 60px - 15px)',
});
}
if (!_this.props.voiceConfig.silenceDetectionConfig) {
throw new Error('voiceConfig prop is missing silenceDetectionConfig');
}
_this.state = {
dialog: [{
message: _this.props.welcomeMessage || 'Welcome to Lex',
from: 'system'
}],
inputText: '',
currentVoiceState: STATES.INITIAL,
inputDisabled: false,
micText: STATES.INITIAL.ICON,
continueConversation: false,
micButtonDisabled: false,
};
_this.micButtonHandler = _this.micButtonHandler.bind(_this);
_this.changeInputText = _this.changeInputText.bind(_this);
_this.listItems = _this.listItems.bind(_this);
_this.submit = _this.submit.bind(_this);
_this.listItemsRef = React.createRef();
_this.onSilenceHandler = _this.onSilenceHandler.bind(_this);
_this.doneSpeakingHandler = _this.doneSpeakingHandler.bind(_this);
_this.lexResponseHandler = _this.lexResponseHandler.bind(_this);
return _this;
}
ChatBot.prototype.micButtonHandler = function () {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
if (this.state.continueConversation) {
this.reset();
}
else {
this.setState({
inputDisabled: true,
continueConversation: true,
currentVoiceState: STATES.LISTENING,
micText: STATES.LISTENING.ICON,
micButtonDisabled: false,
}, function () {
audioControl.startRecording(_this.onSilenceHandler, null, _this.props.voiceConfig.silenceDetectionConfig);
});
}
return [2 /*return*/];
});
});
};
ChatBot.prototype.onSilenceHandler = function () {
var _this = this;
audioControl.stopRecording();
if (!this.state.continueConversation) {
return;
}
audioControl.exportWAV(function (blob) {
_this.setState({
currentVoiceState: STATES.SENDING,
audioInput: blob,
micText: STATES.SENDING.ICON,
micButtonDisabled: true,
}, function () {
_this.lexResponseHandler();
});
});
};
ChatBot.prototype.lexResponseHandler = function () {
return __awaiter(this, void 0, void 0, function () {
var interactionsMessage, response;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!interactions_1.default || typeof interactions_1.default.send !== 'function') {
throw new Error('No Interactions module found, please ensure @aws-amplify/interactions is imported');
}
if (!this.state.continueConversation) {
return [2 /*return*/];
}
interactionsMessage = {
content: this.state.audioInput,
options: {
messageType: 'voice'
}
};
return [4 /*yield*/, interactions_1.default.send(this.props.botName, interactionsMessage)];
case 1:
response = _a.sent();
this.setState({
lexResponse: response,
currentVoiceState: STATES.SPEAKING,
micText: STATES.SPEAKING.ICON,
micButtonDisabled: true,
dialog: this.state.dialog.concat([{ message: response.inputTranscript, from: 'me' },
response && { from: 'bot', message: response.message }]),
inputText: ''
}, function () {
_this.doneSpeakingHandler();
});
this.listItemsRef.current.scrollTop = this.listItemsRef.current.scrollHeight;
return [2 /*return*/];
}
});
});
};
ChatBot.prototype.doneSpeakingHandler = function () {
var _this = this;
if (!this.state.continueConversation) {
return;
}
if (this.state.lexResponse.contentType === 'audio/mpeg') {
audioControl.play(this.state.lexResponse.audioStream, function () {
if (_this.state.lexResponse.dialogState === 'ReadyForFulfillment' ||
_this.state.lexResponse.dialogState === 'Fulfilled' ||
_this.state.lexResponse.dialogState === 'Failed' ||
!_this.props.conversationModeOn) {
_this.setState({
inputDisabled: false,
currentVoiceState: STATES.INITIAL,
micText: STATES.INITIAL.ICON,
micButtonDisabled: false,
continueConversation: false
});
}
else {
_this.setState({
currentVoiceState: STATES.LISTENING,
micText: STATES.LISTENING.ICON,
micButtonDisabled: false,
}, function () {
audioControl.startRecording(_this.onSilenceHandler, null, _this.props.voiceConfig.silenceDetectionConfig);
});
}
});
}
else {
this.setState({
inputDisabled: false,
currentVoiceState: STATES.INITIAL,
micText: STATES.INITIAL.ICON,
micButtonDisabled: false,
continueConversation: false
});
}
};
ChatBot.prototype.reset = function () {
this.setState({
inputText: '',
currentVoiceState: STATES.INITIAL,
inputDisabled: false,
micText: STATES.INITIAL.ICON,
continueConversation: false,
micButtonDisabled: false,
}, function () {
audioControl.clear();
});
};
ChatBot.prototype.listItems = function () {
return this.state.dialog.map(function (m, i) {
if (m.from === 'me') {
return React.createElement("div", { key: i, style: styles.itemMe }, m.message);
}
else if (m.from === 'system') {
return React.createElement("div", { key: i, style: styles.itemBot }, m.message);
}
else {
return React.createElement("div", { key: i, style: styles.itemBot }, m.message);
}
});
};
ChatBot.prototype.submit = function (e) {
return __awaiter(this, void 0, void 0, function () {
var response;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
e.preventDefault();
if (!this.state.inputText) {
return [2 /*return*/];
}
return [4 /*yield*/, new Promise(function (resolve) { return _this.setState({
dialog: _this.state.dialog.concat([
{ message: _this.state.inputText, from: 'me' },
])
}, resolve); })];
case 1:
_a.sent();
if (!interactions_1.default || typeof interactions_1.default.send !== 'function') {
throw new Error('No Interactions module found, please ensure @aws-amplify/interactions is imported');
}
return [4 /*yield*/, interactions_1.default.send(this.props.botName, this.state.inputText)];
case 2:
response = _a.sent();
this.setState({
dialog: this.state.dialog.concat([response && { from: 'bot', message: response.message }]),
inputText: ''
});
this.listItemsRef.current.scrollTop = this.listItemsRef.current.scrollHeight;
return [2 /*return*/];
}
});
});
};
ChatBot.prototype.changeInputText = function (event) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.setState({ inputText: event.target.value })];
case 1:
_a.sent();
return [2 /*return*/];
}
});
});
};
ChatBot.prototype.getOnComplete = function (fn) {
var _this = this;
return function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var clearOnComplete = _this.props.clearOnComplete;
var message = fn.apply(void 0, args);
_this.setState({
dialog: (!clearOnComplete && _this.state.dialog).concat([
message && { from: 'bot', message: message }
]).filter(Boolean),
}, function () {
_this.listItemsRef.current.scrollTop = _this.listItemsRef.current.scrollHeight;
});
};
};
ChatBot.prototype.componentDidMount = function () {
var _a = this.props, onComplete = _a.onComplete, botName = _a.botName;
if (onComplete && botName) {
if (!interactions_1.default || typeof interactions_1.default.onComplete !== 'function') {
throw new Error('No Interactions module found, please ensure @aws-amplify/interactions is imported');
}
interactions_1.default.onComplete(botName, this.getOnComplete(onComplete, this));
}
};
ChatBot.prototype.componentDidUpdate = function (prevProps) {
var _a = this.props, onComplete = _a.onComplete, botName = _a.botName;
if (botName && this.props.onComplete !== prevProps.onComplete) {
if (!interactions_1.default || typeof interactions_1.default.onComplete !== 'function') {
throw new Error('No Interactions module found, please ensure @aws-amplify/interactions is imported');
}
interactions_1.default.onComplete(botName, this.getOnComplete(onComplete, this));
}
};
ChatBot.prototype.render = function () {
var _a = this.props, title = _a.title, theme = _a.theme, onComplete = _a.onComplete;
return (React.createElement(AmplifyUI_1.FormSection, { theme: theme },
title && React.createElement(AmplifyUI_1.SectionHeader, { theme: theme }, core_1.I18n.get(title)),
React.createElement(AmplifyUI_1.SectionBody, { theme: theme },
React.createElement("div", { ref: this.listItemsRef, style: styles.list }, this.listItems())),
React.createElement(AmplifyUI_1.SectionFooter, { theme: theme },
React.createElement(ChatBotInputs, { micText: this.state.micText, voiceEnabled: this.props.voiceEnabled, textEnabled: this.props.textEnabled, styles: styles, onChange: this.changeInputText, inputText: this.state.inputText, onSubmit: this.submit, inputDisabled: this.state.inputDisabled, micButtonDisabled: this.state.micButtonDisabled, handleMicButton: this.micButtonHandler, currentVoiceState: this.state.currentVoiceState }))));
};
return ChatBot;
}(react_1.Component));
exports.ChatBot = ChatBot;
function ChatBotTextInput(props) {
var styles = props.styles;
var onChange = props.onChange;
var inputText = props.inputText;
var inputDisabled = props.inputDisabled;
var currentVoiceState = props.currentVoiceState;
return (React.createElement("input", { style: styles.textInput, type: 'text', placeholder: core_1.I18n.get(currentVoiceState.MESSAGE), onChange: onChange, value: inputText, disabled: inputDisabled }));
}
function ChatBotMicButton(props) {
var voiceEnabled = props.voiceEnabled;
var styles = props.styles;
var micButtonDisabled = props.micButtonDisabled;
var handleMicButton = props.handleMicButton;
var micText = props.micText;
if (!voiceEnabled) {
return null;
}
return (React.createElement("button", { style: styles.mic, disabled: micButtonDisabled, onClick: handleMicButton }, micText));
}
function ChatBotTextButton(props) {
var textEnabled = props.textEnabled;
var styles = props.styles;
var inputDisabled = props.inputDisabled;
if (!textEnabled) {
return null;
}
return (React.createElement("button", { type: "submit", style: styles.button, disabled: inputDisabled }, core_1.I18n.get('Send')));
}
function ChatBotInputs(props) {
var voiceEnabled = props.voiceEnabled;
var textEnabled = props.textEnabled;
var styles = props.styles;
var onChange = props.onChange;
var inputDisabled = props.inputDisabled;
var micButtonDisabled = props.micButtonDisabled;
var inputText = props.inputText;
var onSubmit = props.onSubmit;
var handleMicButton = props.handleMicButton;
var micText = props.micText;
var currentVoiceState = props.currentVoiceState;
if (voiceEnabled && !textEnabled) {
inputDisabled = true;
}
if (!voiceEnabled && !textEnabled) {
return (React.createElement("div", null, "No Chatbot inputs enabled. Set at least one of voiceEnabled or textEnabled in the props. "));
}
return (React.createElement("form", { onSubmit: onSubmit },
React.createElement(ChatBotTextInput, { onSubmit: onSubmit, styles: styles, type: 'text', currentVoiceState: currentVoiceState, onChange: onChange, inputText: inputText, inputDisabled: inputDisabled }),
React.createElement(ChatBotTextButton, { onSubmit: onSubmit, type: "submit", styles: styles, inputDisabled: inputDisabled, textEnabled: textEnabled }),
React.createElement(ChatBotMicButton, { styles: styles, micButtonDisabled: micButtonDisabled, handleMicButton: handleMicButton, micText: micText, voiceEnabled: voiceEnabled })));
}
ChatBot.defaultProps = {
title: '',
botName: '',
onComplete: undefined,
clearOnComplete: false,
voiceConfig: defaultVoiceConfig,
conversationModeOn: false,
voiceEnabled: false,
textEnabled: true
};
//# sourceMappingURL=ChatBot.js.map