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vs.js
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vs.js
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/**
* ***********************************
* *********** Recognition ***********
* ***********************************
*/
/**
* Usage
* const reco = new Recognition({
* baseUrl: 'https://www.google.co.in/search'
* });
*/
(function(root) {
"use strict";
var WebSpeechRecognition = root.SpeechRecognition || root.webkitSpeechRecognition;
if(!WebSpeechRecognition){
return false;
}
/* Styles */
const containerStyle = 'position:fixed;height:45px;width:45px;right:10px;bottom:10px;border-radius:50%;background:#f68c24;box-sizing:border-box;text-align:center;color:#fff;border:0 solid #fff;animation-duration:1s;animation-iteration-count:infinite';
const iconStyle = 'height:25px;position:fixed;display:block;bottom:20px;right:25px;font-size:40px;';
const imgStyle = 'height:25px;position:fixed;display:block;bottom:20px;right:25px;';
const animationStyle = '@keyframes listening{0%{border-width:22.5px}10%{border-width:19px}20%{border-width:16px}30%{border-width:13px}40%{border-width:10px}50%{border-width:8px}60%{border-width:6px}70%{border-width:4px}80%{border-width:2px}90%{border-width:1px}100%{border-width:0}}';
const onspeechend = function() {
Recognition.mic.style.animationName = 'none';
this.stop();
};
const onerror = function(event) {
console.log('Speech recognition error detected: ' + event.error + " message " + event.message);
this.stop();
};
const onnomatch = function() {
console.log('Could not recognise the speech, try again...')
this.stop();
};
function addStyle() {
let head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
style.type = 'text/css';
if (style.styleSheet) {
style.styleSheet.cssText = animationStyle;
} else {
style.appendChild(document.createTextNode(animationStyle));
}
head.appendChild(style);
}
function iconFactory(type, options){
var icon;
switch (type) {
case 'fontawesome':
icon = document.createElement('i');
icon.className = 'fa fa-microphone';
icon.style = iconStyle;
break;
case 'icon': {
icon = document.createElement('img');
icon.src = options.icon;
icon.style = imgStyle;
}
break;
default: {
icon = document.createElement('i');
icon.innerHTML = ''
}
}
return icon;
}
function decorate(handler) {
let container = document.createElement('div');
let icon = iconFactory(this.agent.mic, this.agent);
Recognition.mic = container;
addStyle();
container.style = containerStyle;
if(this.agent.bgColor){
container.style.backgroundColor = this.agent.bgColor;
}
if(this.agent.borderColor){
container.style.borderColor = this.agent.borderColor;
}
container.appendChild(icon);
document.body.appendChild(container);
container.addEventListener('click', handler);
}
const defaults = {
lang: 'en-US',
continuous: false,
maxAlternatives: 1,
interimResults: false,
dictionary: {},
mic: 'icon',
bgColor: '#fff'
}
const onresult = function(event) {
var keyword = event.results[0][0].transcript.toLowerCase();
var url;
event.stopImmediatePropagation();
if (this.dictionary[keyword]) {
url = dictionary[keyword];
} else {
url = this.baseUrl + "?q=" + encodeURI(keyword);
}
window.location = url;
};
function Recognition(options) {
this.agent = new WebSpeechRecognition();
Object.assign(this.agent, defaults, options);
this.agent.onresult = onresult.bind(this.agent);
this.agent.onspeechend = onspeechend.bind(this.agent);
this.agent.onerror = onerror.bind(this.agent);
this.agent.onnomatch = onnomatch.bind(this.agent);
this.agent.onstart = function(){console.log("I am starting")};
this.agent.onsoundstart = function(){console.log("Sound Started")};
this.agent.onsoundend = function(){console.log("Sound ended")};
this.agent.onaudiostart = function(){console.log("Audio Started")};
this.agent.onaudioend = function(){console.log("Audio ended")};
decorate.call(this, this.start.bind(this));
};
Recognition.prototype.start = function() {
Recognition.mic.style.animationName = 'listening';
this.agent.start();
};
Recognition.prototype.stop = function() {
Recognition.mic.style.animationName = 'none';
this.agent.stop();
};
Recognition.prototype.abort = function() {
Recognition.mic.style.animationName = 'none';
this.agent.abort();
};
root.Recognition = Recognition;
}(window));