platypush-app/assets/js/androidjs.js

/*!
 * Socket.IO v2.2.0
 * (c) 2014-2018 Guillermo Rauch
 * Released under the MIT License.
 */
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//# sourceMappingURL=socket.io.js.map


// document.write('<script src = "node_modules/socket.io/index.js"></script>');


var socket = io('http://localhost:3000');
listeners = {}
var front = {
    send:send,
    on:on,
    sendSync:sendSync
}

function addListener(event, fn) {
    listeners[event] = listeners[event] || [];
    listeners[event].push(fn);
}

function on(event, fn){
    addListener(event, fn);
}

function exeFunction(event, ...args){
    let fns = listeners[event];
    if (!fns) return false;
    fns.forEach(function (f) {
      f(...args);
    });
    return true;
}


function send(event, ...args){
    // console.log('called send');
    socket.emit('response-from-front', event, ...args)
}

socket.on('response-from-back', function(event, ...args){
    // console.log('reposen sync')
    exeFunction(event, ...args);
})

socket.on('sync-response', function(eventName, res){
    // console.log('sync-reponse')
    // console.log(eventName);
    exeFunction(eventName + "-result", res);
})

function sendSync(event, ...args){
    socket.emit('sync-response-from-front', event, ...args);
}

var app = {}

/**
  * Camera API
 */

var camera = {
    init : initCamera,
    startRecording: startVideoRecording,
    stopRecording: stopVideoRecording,
    saveRecording: saveVideoRecording,
    previewRecording: previewVideoRecordingIntoDom,
    getDevices : getVideoDevices,
    getBuffer: getCameraRecordedBuffer,
    takePhoto: takePhoto,
    savePhoto: saveCameraPhoto,
    recordedBlobs : [],
    mediaRecorder: null,
    canvas : document.createElement('canvas')
}

function initCamera(dom, constraints){
    if(window.videoStream != undefined){
        stopMediaTracks(window.videoStream);
    }
    navigator.getUserMedia(constraints, function(stream){
        window.videoStream = stream;
        dom.srcObject = stream;
    }, function(error){
        console.log(error);
        throw error;
    })
}

function handleCameraDataAvailable(event) {
    if (event.data && event.data.size > 0) {
      camera.recordedBlobs.push(event.data);
    }
}

function startVideoRecording(options){
    camera.recordedBlobs = [];
    try {
        camera.mediaRecorder = new MediaRecorder(window.videoStream, options);
      } catch (e0) {
        console.log('Unable to create MediaRecorder with options Object: ', options, e0);
        try {
          options = {mimeType: 'video/webm;codecs=vp8', bitsPerSecond: 100000};
          camera.mediaRecorder = new MediaRecorder(window.videoStream, options);
        } catch (e1) {
          console.log('Unable to create MediaRecorder with options Object: ', options, e1);
          try {
            options = 'video/mp4';
            camera.mediaRecorder = new MediaRecorder(window.videoStream, options);
          } catch (e2) {
            alert('MediaRecorder is not supported by this browser.');
            console.error('Exception while creating MediaRecorder:', e2);
            return;
          }
        }
    }
    // mediaRecorder.onstop = handleStop;
    camera.mediaRecorder.ondataavailable = handleCameraDataAvailable;
    camera.mediaRecorder.start(); // collect 10ms of data
}

function stopVideoRecording(){
    camera.mediaRecorder.stop();
}

function saveVideoRecording(filepath, filename, options){
    let blob = new Blob(camera.recordedBlobs, options);
    saveCameraBlob(filepath, filename, blob);
}

function previewVideoRecordingIntoDom(dom, options){
    dom.controls = true;
    let superBuffer = new Blob(camera.recordedBlobs, options);
    dom.src = window.URL.createObjectURL(superBuffer);
}

function saveCameraBlob(filepath, filename, blob){
    let reader = new FileReader()
    reader.onload = function() {
        if (reader.readyState == 2) {
            send('androidjs:saveBlob', filepath, filename, reader.result, 'video');
            console.log(`Saving ${JSON.stringify({ filename, size: blob.size })}`)
        }
    }
    reader.readAsArrayBuffer(blob)
}

function getVideoDevices(callback){
    let devices = []
    navigator.mediaDevices.enumerateDevices()
        .then(function(mediaDevices){
            for(let i = 0; i < mediaDevices.length; i++){
                if(mediaDevices[i].kind === 'videoinput'){
                    devices.push(mediaDevices[i].deviceId);
                }
            }
            callback(devices);
        });
}

function stopMediaTracks(stream) {
    stream.getTracks().forEach(track => {
        track.stop();
    });
}

function getCameraRecordedBuffer(options, callback){
    let blob = new Blob(camera.recordedBlobs, options);
    let reader = new FileReader()
    reader.onload = function() {
        if (reader.readyState == 2) {
            callback(reader.result);
        }
    }
    reader.readAsArrayBuffer(blob)
}

function takePhoto(cameraDom, previewDom){
    camera.canvas.width = cameraDom.videoWidth;
    camera.canvas.height = cameraDom.videoHeight;
    camera.canvas.getContext('2d').drawImage(cameraDom, 0, 0);
    if(previewDom != undefined){
        previewDom.src = camera.canvas.toDataURL('image/webp');
    }
}

function saveCameraPhoto(filepath, filename){
    let data = camera.canvas.toDataURL('image/webp').replace(/^data:image\/\w+;base64,/, "");
    send('androidjs:saveBlob', filepath, filename, data, 'image');
    console.log('saving file...');
}

app.camera = camera;


/**
  * Microphone API
 */

 microphone = {
     startRecording: startAudioRecording,
     getDevices: getAudioDevices,
     stopRecording: stopAudioRecording,
     previewRecording: previewAudioRecording,
     saveRecording: saveAudioRecording,
     getBuffer: getAudioRecordedBuffer,
     recordedBlobs: [],
     mediaRecorder: null
 }

 function handleAudioDataAvailable(event){
    if (event.data && event.data.size > 0) {
        microphone.recordedBlobs.push(event.data);
      }
 }

 function startAudioRecording(options){
    if(window.audioStream != undefined){
        stopMediaTracks(window.audioStream);
    }
    navigator.getUserMedia(options, function(stream){
        window.audioStream = stream;
        microphone.mediaRecorder = new MediaRecorder(window.audioStream);
        microphone.mediaRecorder.ondataavailable = handleAudioDataAvailable;
        microphone.mediaRecorder.start();
    }, function(error){
        console.log(error);
        throw error;
    });
 }

 function stopAudioRecording(){
     microphone.mediaRecorder.stop();
 }

 function previewAudioRecording(dom, options){
     dom.controls = true;
     let blob = new Blob(microphone.recordedBlobs, options);
     dom.src = URL.createObjectURL(blob);
 }

 function saveAudioRecording(filepath, filename, options){
    let blob = new Blob(microphone.recordedBlobs, options);
    saveAudioBlob(filepath, filename, blob);
 }

 function saveAudioBlob(filepath, filename, blob){
    let reader = new FileReader()
    reader.onload = function() {
        if (reader.readyState == 2) {
            send('androidjs:saveBlob', filepath, filename, reader.result, 'audio');
            console.log(`Saving ${JSON.stringify({ filename, size: blob.size })}`)
        }
    }
    reader.readAsArrayBuffer(blob);
 }

 function getAudioRecordedBuffer(options, callback){
     let blob = new Blob(microphone.recordedBlobs, options);
     let reader = new FileReader();
     reader.onload = function(){
         if(reader.readyState == 2){
             callback(reader.result);
         }
     }
     reader.readAsArrayBuffer(blob);
 }

 function getAudioDevices(callback){
    let devices = [];
    navigator.mediaDevices.enumerateDevices()
        .then(function(mediaDevices){
            for(let i = 0; i < mediaDevices.length; i++){
                if(mediaDevices[i].kind == 'audioinput'){
                    devices.push(mediaDevices[i].deviceId);
                }
            }
            callback(devices);
        });
 }

 app.microphone = microphone;


/**
 * App Module
 */

 app.getPath = function(name){
     return window.android.getPath(name);
 }

 app.loadURL = function(url){
     window.href = url;
 }

 app.reload = function(){
     window.reload();
 }