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September 28, 2016 23:51
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AngularJS Voice Commands to PubNub Channel
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<!doctype html> | |
<html> | |
<head> | |
<script src="https://cdn.pubnub.com/pubnub-3.15.1.min.js"></script> | |
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script> | |
<script src="https://cdn.pubnub.com/sdk/pubnub-angular/pubnub-angular-3.2.1.min.js"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script> | |
<script src="http://cdglabs.github.io/ohm/dist/ohm.js"></script> | |
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.2/css/bootstrap.min.css" /> | |
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" /> | |
</head> | |
<body> | |
<div class="container" ng-app="PubNubAngularApp" ng-controller="MySpeechCtrl"> | |
<pre>NOTE: make sure to update the PubNub keys below with your keys!</pre> | |
<h3>MyVoice to Commands</h3> | |
<pre> | |
KNOWN COMMANDS: | |
"set timer for 45 minutes" | |
"set alarm for 5 o'clock" | |
"what time is it" | |
</pre> | |
<input type="button" ng-click="dictateIt()" value="Speak a Command" /> | |
<br /><br /> | |
<ul> | |
<li ng-repeat="command in commands track by $index"> | |
{{command.text}} | |
<a ng-click="handleIt(command)">(handle again)</a> | |
</li> | |
</ul> | |
</div> | |
<script type="text/ohm-js"> | |
// An Ohm grammar for parsing voice commands | |
COMMAND { | |
command = timer_cmd | alarm_cmd | time_isit_cmd | |
timer_cmd = "set timer for " number " minutes" | |
alarm_cmd = "set alarm for " number " o'clock" | |
time_isit_cmd = "what time is it" | |
number = digit+ | |
} | |
</script> | |
<script> | |
var gram = ohm.grammarFromScriptElement(); | |
var sem = gram.semantics().addOperation('toList',{ | |
number: function(a) { return parseInt(this.interval.contents,10); }, | |
timer_cmd: function(_, number, _) { return ['timer_cmd', number.toList(), " minutes"]; }, | |
alarm_cmd: function(_, hour, _) { return ['alarm_cmd', hour.toList(), " o'clock"]; }, | |
time_isit_cmd: function(x) { return ['time_isit_cmd']; }, | |
command: function(x) { return {text:this.interval.contents, cmd:x.toList()}; } | |
}); | |
angular.module('PubNubAngularApp', ["pubnub.angular.service"]) | |
.controller('MySpeechCtrl', function($rootScope, $scope, Pubnub) { | |
$scope.commands = [{text:"no commands yet"}]; | |
$scope.msgChannel = 'MySpeech'; | |
if (!$rootScope.initialized) { | |
Pubnub.init({ | |
publish_key: 'YOUR_PUB_KEY', | |
subscribe_key: 'YOUR_SUB_KEY', | |
ssl:true | |
}); | |
$rootScope.initialized = true; | |
} | |
var msgCallback = function(payload) { | |
$scope.$apply(function() { | |
$scope.commands.push(payload); | |
}); | |
$scope.handleIt(payload); | |
}; | |
Pubnub.subscribe({ channel: [$scope.msgChannel, $scope.prsChannel], message: msgCallback }); | |
$scope.handleIt = function (command) { | |
if (command.cmd && command.cmd[0] === "time_isit_cmd") { | |
window.speechSynthesis.speak(new SpeechSynthesisUtterance("the current time is " + (new Date()).toISOString().split("T")[1].split(".")[0])); | |
} else if (command.cmd) { | |
window.speechSynthesis.speak(new SpeechSynthesisUtterance("okay, got it - I will " + command.text)); | |
} else { | |
window.speechSynthesis.speak(new SpeechSynthesisUtterance("I'm not quite sure about that")); | |
} | |
}; | |
$scope.dictateIt = function () { | |
var theText = ""; | |
var recognition = new webkitSpeechRecognition(); | |
recognition.onresult = function (event) { | |
for (var i = event.resultIndex; i < event.results.length; i++) { | |
if (event.results[i].isFinal) { | |
theText += event.results[i][0].transcript; | |
} | |
} | |
var match = gram.match(theText.toLowerCase()); | |
var result = match.succeeded() ? sem(match).toList() : {text:theText}; | |
Pubnub.publish({ | |
channel: $scope.msgChannel, | |
message: result | |
}); | |
}; | |
recognition.start(); | |
}; | |
}); | |
</script> | |
</body> | |
</html> |
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