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set cropRect and captureMouseClicks #4

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061332d
set cropRect and captureMouseClicks
Jan 30, 2017
779f1e8
add scale factor
Jan 30, 2017
875ea06
0.0.4
Jan 30, 2017
8c067ae
emit events
Jan 31, 2017
0a3ba95
castro session
Feb 3, 2017
2f8e02a
pass options for video output in start method
Feb 3, 2017
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149 changes: 60 additions & 89 deletions castro.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,106 +7,77 @@
// Handle pause/restart
// Capture frame/screenshots: (https://developer.apple.com/library/ios/qa/qa1702/_index.html)

var $ = require('nodobjc');
const EventEmmiter = require('events');
const $ = require('nodobjc');
$.framework('AVFoundation');
$.framework('Foundation');

var Castro = function(){
this._started = false;
this._used = false;
this.pool = $.NSAutoreleasePool('alloc')('init');
function checkRect(rect) {
return typeof rect === 'object' && 'x' in rect && 'y' in rect && 'w' in rect && 'h' in rect;
}

function getNSURL(path) {
const NSlocation = $.NSString('stringWithUTF8String', path);
return $.NSURL('fileURLWithPath', NSlocation);
}

class Castro extends EventEmmiter {
constructor() {
super();
this._started = false;

this.session = $.AVCaptureSession('alloc')('init');

// Set the main display as capture input
this.displayId = $.CGMainDisplayID();

this.input = $.AVCaptureScreenInput('alloc')('initWithDisplayID', this.displayId);
this.output = $.AVCaptureMovieFileOutput('alloc')('init');

this.session = $.AVCaptureSession('alloc')('init');
if (this.session('canAddInput', this.input)) this.session('addInput', this.input);
if (this.session('canAddOutput', this.output)) this.session('addOutput', this.output);

// Set the main display as capture input
this.displayId = $.CGMainDisplayID();
this.input = $.AVCaptureScreenInput('alloc')('initWithDisplayID', this.displayId);
if (this.session('canAddInput', this.input)) {
this.session('addInput', this.input);
const Delegate = $.NSObject.extend('AVCaptureFileOutputRecordingDelegate');
Delegate.addMethod('captureOutput:didStartRecordingToOutputFileAtURL:fromConnections:', 'v@:@@@', () => {
this.emit('didStartRecording');
});
Delegate.addMethod('captureOutput:willFinishRecordingToOutputFileAtURL:fromConnections:error:', 'v@:@@@@', () => {
this.emit('willFinishRecording');
});
Delegate.register();
this.delegate = Delegate('alloc')('init');

this.session('startRunning');
}

// Set a movie file as output
this.movieFileOutput = $.AVCaptureMovieFileOutput('alloc')('init');
if (this.session('canAddOutput', this.movieFileOutput)) {
this.session('addOutput', this.movieFileOutput);
start(videoLocation, rect, captureMouseClicks, scaleFactor) {
const cropRect = checkRect(rect) ? $.CGRectMake(rect.x, rect.y, rect.w, rect.h) : null;

if (captureMouseClicks) this.input('setCapturesMouseClicks', true);
if (cropRect) this.input('setCropRect', cropRect);
if (scaleFactor) this.input('setScaleFactor', scaleFactor);

this.pool = $.NSAutoreleasePool('alloc')('init');

if (this._started) throw new Error('A recording is already in progress.');

this.output(
'startRecordingToOutputFileURL', getNSURL(videoLocation),
'recordingDelegate', this.delegate
);
this._started = true;
}

this.session('startRunning');
this.setLocation();
}
stop() {
if (!this._started) throw new Error('Video did not start recording.');

this.output('stopRecording');
this.pool('drain');
this._started = false;

Castro.prototype = {

// Set recording file location
setLocation: function(path) {
// TODO: Does file exist at the file location path? If so, do something about it...
//var defaultManager = $.NSFileManager('alloc')('init')
//if (defaultManager('fileExistsAtPath',NSlocation)) {
// console.log("File already exists!")
//}

if (!path){
// Default Destination: e.g. "/Users/hugs/Desktop/Castro_uul3di.mov"
var homeDir = $.NSHomeDirectory();
var desktopDir = homeDir.toString() + '/Desktop/';
var randomString = (Math.random() + 1).toString(36).substring(12);
var filename = 'Castro_' + randomString + '.mp4';
this.location = desktopDir + filename;
} else {
// TODO: Make sure path is legit.
this.location = path;
}
this.NSlocation = $.NSString('stringWithUTF8String', this.location);
this.NSlocationURL = $.NSURL('fileURLWithPath', this.NSlocation);
},

// Start recording
start: function() {
if (!this._started) {
if (!this._used) {
this.movieFileOutput('startRecordingToOutputFileURL', this.NSlocationURL,
'recordingDelegate', this.movieFileOutput);
this._started = true;
} else {
throw new Error("Recording has completed. To make a new recording, create a new Castro object.");
}
} else {
throw new Error("A recording is already in progress.");
}
},

// Stop recording
stop: function() {
if (!this._used) {
if (this._started) {
this.movieFileOutput('stopRecording');
this.pool('drain');
this._started = false;
this._used = true;
return this.location;
} else {
throw new Error("Try starting it first!");
}
} else {
throw new Error("Recording has completed. To make a new recording, create a new Castro object.");
}
},

test: function() {
console.log("Castro will record the main display for 10 seconds...");

console.log("Now starting...");
this.start();


setTimeout(function(_this){
console.log("Now stopping...");
_this.stop();

console.log("File location:");
console.log(_this.location);
}, 10*1000, this);
return this.location;
}
}

module.exports = Castro;
module.exports.Castro = Castro;
17 changes: 11 additions & 6 deletions package.json
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Original file line number Diff line number Diff line change
@@ -1,23 +1,28 @@
{
"name": "castro",
"version": "0.0.3",
"version": "0.0.4",
"description": "Automated screen recording",
"author": "Jason Huggins <jrhuggins@gmail.com>",
"keywords": ["video", "recording", "screencast", "osx"],
"keywords": [
"video",
"recording",
"screencast",
"osx"
],
"homepage": "https://github.com/hugs/node-castro",
"repository": {
"type": "git",
"url": "https://github.com/hugs/node-castro.git"
},
"main": "./castro.js",
"engines": {
"node": "*"
"node": "*"
},
"bugs": {
"url" : "https://github.com/hugs/node-castro/issues"
"url": "https://github.com/hugs/node-castro/issues"
},
"license": "MIT",
"license": "MIT",
"dependencies": {
"nodobjc": "*"
"nodobjc": "*"
}
}