Parse FocusIn and FocusOut events

Update async to the latest version 🚀

.gitignore

@@ -0,0 +1,4 @@
+*.log
+yarn.lock
+package-lock.json
+node_modules

.travis.yml

@@ -7,12 +7,10 @@ before_script:
 
 env:
   - NOLISTEN=tcp DISPLAY=:99.0
-  - NOLISTEN=unix DISPLAY=:99.0
+#  - NOLISTEN=unix DISPLAY=:99.0
-  - NOLISTEN=unix DISPLAY=127.0.0.2:99.0
+#  - NOLISTEN=unix DISPLAY=127.0.0.2:99.0
 
 language: node_js
 node_js:
-   - '0.10'
+   - '12'
-   - '0.12'
+   - '14'
-   - '4.2'
-   - '5.0'

README.md

@@ -1,105 +1,119 @@
-# About
+# node-x11
-[![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/sidorares/node-x11?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
- X11 protocol client for node.js
 
- Implements core X11 protocol, as well as Xrender, Damage, Composite, Big-Requests, Dpms, Screensaver, XFixes, Shape, XTest, XC-Misc, GLX and Apple-WM extensions.
+X11 protocol client for Node.js: implements the core X11 protocol, as well as Xrender, Damage, Composite, Big-Requests, Dpms, Screensaver, XFixes, Shape, XTest, XC-Misc, GLX, and Apple-WM extensions.
-# install
-
-`npm install x11`
-
-Windows users:
-1) install [XMing](http://www.straightrunning.com/XmingNotes/) or [Cygwin/X](http://x.cygwin.com/)
-2) get node-x11 copy (using [git](http://code.google.com/p/msysgit/downloads/list?can=3) or from [Github](https://github.com/sidorares/node-x11/archives/master ))
-
-#CI build status:
 
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/sidorares/node-x11?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Build Status](https://secure.travis-ci.org/sidorares/node-x11.png)](http://travis-ci.org/sidorares/node-x11)
 
-# example
+## Install
+
+    npm install x11
+
+Windows users:
+
+1.  install [XMing](http://www.straightrunning.com/XmingNotes/) or [Cygwin/X](http://x.cygwin.com/)
+2.  get node-x11 copy (using [git](http://code.google.com/p/msysgit/downloads/list?can=3) or from [Github](https://github.com/sidorares/node-x11/archives/master))
+
+## Example
 
 Core requests usage:
 
 ```js
-    var x11 = require('x11');
+var x11 = require('x11');
 
-    var Exposure = x11.eventMask.Exposure;
+var Exposure = x11.eventMask.Exposure;
-    var PointerMotion = x11.eventMask.PointerMotion;
+var PointerMotion = x11.eventMask.PointerMotion;
 
-    x11.createClient(function(err, display) {
+x11.createClient(function(err, display) {
-        if (!err) {
+  if (!err) {
-            var X = display.client;
+    var X = display.client;
-            var root = display.screen[0].root;
+    var root = display.screen[0].root;
-            var wid = X.AllocID();
+    var wid = X.AllocID();
-            X.CreateWindow(
+    X.CreateWindow(
-                wid, root,        // new window id, parent
+      wid,
-                0, 0, 100, 100,   // x, y, w, h
+      root, // new window id, parent
-                0, 0, 0, 0,       // border, depth, class, visual
+      0,
-                { eventMask: Exposure|PointerMotion } // other parameters
+      0,
-            );
+      500,
-            X.MapWindow(wid);
+      500, // x, y, w, h
-            var gc = X.AllocID();
+      0,
-            X.CreateGC(gc, wid);
+      0,
-            X.on('event', function(ev) {
+      0,
-                if (ev.type == 12)
+      0, // border, depth, class, visual
-                {
+      { eventMask: Exposure | PointerMotion } // other parameters
-                    X.PolyText8(wid, gc, 50, 50, ['Hello, Node.JS!']);
+    );
-                }
+    X.MapWindow(wid);
-            });
+    var gc = X.AllocID();
-            X.on('error', function(e) {
+    X.CreateGC(gc, wid);
-                console.log(e);
+    var white = display.screen[0].white_pixel;
-            });
+    var black = display.screen[0].black_pixel;
-	    } else {
+    cidBlack = X.AllocID();
-		    console.log(err);
+    cidWhite = X.AllocID();
-        }
+    X.CreateGC(cidBlack, wid, { foreground: black, background: white });
+    X.CreateGC(cidWhite, wid, { foreground: white, background: black });
+    X.on('event', function(ev) {
+      if (ev.type == 12) {
+        X.PolyFillRectangle(wid, cidWhite, [0, 0, 500, 500]);
+        X.PolyText8(wid, cidBlack, 50, 50, ['Hello, Node.JS!']);
+      }
     });
+    X.on('error', function(e) {
+      console.log(e);
+    });
+  } else {
+    console.log(err);
+  }
+});
 ```
 
-# Screenshots
+## Screenshots
 
-  ![tetris game](https://lh6.googleusercontent.com/-RCRY9A7WwnA/Tlww0FHP7NI/AAAAAAAAAwo/nxfSxsw6xow/s400/tetris.png)
+![tetris game](https://lh6.googleusercontent.com/-RCRY9A7WwnA/Tlww0FHP7NI/AAAAAAAAAwo/nxfSxsw6xow/s400/tetris.png)
-  ![XRENDER gradients](https://lh4.googleusercontent.com/-VS0BMYYmq6M/Tlww0Y1ij0I/AAAAAAAAAws/pVWsPZ63Yeo/s400/render-gradients.png)
+![XRENDER gradients](https://lh4.googleusercontent.com/-VS0BMYYmq6M/Tlww0Y1ij0I/AAAAAAAAAws/pVWsPZ63Yeo/s400/render-gradients.png)
-  ![OpenGL glxgears](http://img-fotki.yandex.ru/get/4123/37511094.30/0_81712_6c2ebb11_L)
+![OpenGL glxgears](http://img-fotki.yandex.ru/get/4123/37511094.30/0_81712_6c2ebb11_L)
-  ![OpenGL teapot](http://img-fotki.yandex.ru/get/4132/37511094.30/0_81713_82a5ac48_L)
+![OpenGL teapot](http://img-fotki.yandex.ru/get/4132/37511094.30/0_81713_82a5ac48_L)
 
-# In use
+## In use
-  - [ntk](https://github.com/sidorares/ntk) - higher level toolkit on top of X11
-  - [node-remote](https://github.com/AndrewSwerlick/node-remote) - media center controller
-  - [tiles](https://github.com/dominictarr/tiles) - tiling window manager
-  - [vnc](https://github.com/sidorares/node-vnc) - vnc client.
-  - [node-ewmh](https://github.com/santigimeno/node-ewmh) - set of EWMH helpers.
-  - [OdieWM](https://github.com/bu/OdieWM) - window manager
-  - [Dbusmenu](https://github.com/sidorares/node-dbusmenu) - unity global menu client.
-  - [AirWM](https://github.com/AirWM/AirWM) - tiling window manager
-  - [npdf](https://github.com/sidorares/npdf) - pdf viewer
-  - [tinywm](https://github.com/Airblader/node-tinywm) The famous [TinyWM](https://github.com/mackstann/tinywm) written in node.js
-  - [basedwm](https://github.com/anko/basedwm) Infinite-desktop panning X window manager in LiveScript
 
-# X11 resources/documentation:
+- [ntk](https://github.com/sidorares/ntk) - higher level toolkit on top of X11
+- [node-remote](https://github.com/AndrewSwerlick/node-remote) - media center controller
+- [tiles](https://github.com/dominictarr/tiles) - tiling window manager
+- [vnc](https://github.com/sidorares/node-vnc) - vnc client.
+- [node-ewmh](https://github.com/santigimeno/node-ewmh) - set of EWMH helpers.
+- [OdieWM](https://github.com/bu/OdieWM) - window manager
+- [Dbusmenu](https://github.com/sidorares/node-dbusmenu) - unity global menu client.
+- [AirWM](https://github.com/AirWM/AirWM) - tiling window manager
+- [npdf](https://github.com/sidorares/npdf) - pdf viewer
+- [tinywm](https://github.com/Airblader/node-tinywm) The famous [TinyWM](https://github.com/mackstann/tinywm) written in node.js
+- [basedwm](https://github.com/anko/basedwm) Infinite-desktop panning X window manager in LiveScript
 
-  - [Xplain](https://github.com/magcius/xplain) - A series of articles to help explain the X Window System http://magcius.github.io/xplain/article/
+## X11 resources/documentation:
-  - [Official X11 docs](http://www.x.org/releases/X11R7.6/doc/) 
-  - [protocol specification](http://www.x.org/releases/X11R7.6/doc/xproto/x11protocol.pdf)
-  - C Xlib to X11 request mapping table http://tronche.com/gui/x/xlib/appendix/a.html
-  - [How to write composite manager](http://www.talisman.org/~erlkonig/misc/x11-composite-tutorial/)
-  - [Extended Window Manager Hints specification](http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html)
 
-# Other implementations
+- [Xplain](https://github.com/magcius/xplain) - A series of articles to help explain the X Window System http://magcius.github.io/xplain/article/
+- [Official X11 docs](http://www.x.org/releases/X11R7.6/doc/)
+- [protocol specification](http://www.x.org/releases/X11R7.6/doc/xproto/x11protocol.pdf)
+- C Xlib to X11 request mapping table http://tronche.com/gui/x/xlib/appendix/a.html
+- [How to write composite manager](http://www.talisman.org/~erlkonig/misc/x11-composite-tutorial/)
+- [Extended Window Manager Hints specification](http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html)
 
-  - C: XLib - http://www.sbin.org/doc/Xlib/ http://www.tronche.com/gui/x/xlib/ http://www.x.org/docs/X11/xlib.pdf
+## Other implementations
-  - C: XCB - http://xcb.freedesktop.org/
-  - Python:  http://sourceforge.net/projects/python-xlib/ ( github fork: https://github.com/Ademan/python-xlib-branch pypi: http://pypi.python.org/pypi/Python%20Xlib )
-  - https://github.com/alexer/python-xlib-render
-  - Python/twisted:  https://launchpad.net/twisted-x11
-  - Perl: http://search.cpan.org/~smccam/X11-Protocol-0.56/Protocol.pm
-  - Go: https://github.com/BurntSushi/xgb
-  - Java: https://github.com/xderoche/J11
-  - Ruby: https://github.com/dj2/x-ruby-bindings
-  - Clojure: https://github.com/noodlewiz/xcljb
-  - Guile: https://github.com/mwitmer/guile-xcb
 
-# Server side (protocol + functionality) implementations for js + DOM
+- C: XLib - http://www.sbin.org/doc/Xlib/ http://www.tronche.com/gui/x/xlib/ http://www.x.org/docs/X11/xlib.pdf
+- C: XCB - http://xcb.freedesktop.org/
+- Python: http://sourceforge.net/projects/python-xlib/ ( github fork: https://github.com/Ademan/python-xlib-branch pypi: http://pypi.python.org/pypi/Python%20Xlib )
+- https://github.com/alexer/python-xlib-render
+- Python/twisted: https://launchpad.net/twisted-x11
+- Perl: http://search.cpan.org/~smccam/X11-Protocol-0.56/Protocol.pm
+- Go: https://github.com/BurntSushi/xgb
+- Java: https://github.com/xderoche/J11
+- Ruby: https://github.com/dj2/x-ruby-bindings
+- Clojure: https://github.com/noodlewiz/xcljb
+- Guile: https://github.com/mwitmer/guile-xcb
+- Emacs lisp: https://github.com/ch11ng/xelb ( autogenerated from XCB XML )
 
-would be really great to make completely web based playground page, connecting node-x11 api to DOM based implementation 
+## Server side (protocol + functionality) implementations for js + DOM
 
-  - https://github.com/GothAck/javascript-x-server
+would be really great to make completely web based playground page, connecting node-x11 api to DOM based implementation
-  - https://github.com/ttaubert/x-server-js
+
+- https://github.com/GothAck/javascript-x-server
+- https://github.com/ttaubert/x-server-js

autogen/generate.js

@@ -252,7 +252,7 @@ function genReq(req, last)
    if (req.body.length == 0)
    {       
        result.push('  function() {');
-       result.push('     return new Buffer([' + req.opcode + ', 0, 1, 0]);');
+       result.push('     return Buffer.from([' + req.opcode + ', 0, 1, 0]);');
    } else {
    result.push('  function (args) {');
    result.push('    var extraLength = 0;');
@@ -287,10 +287,10 @@ function genReq(req, last)
    var reqLen4 = ((reqLen + 3) >> 2);
 
    if (extraLength)
-     result.push('    var data = new Buffer(' + reqLen + ' + extraLength);');
+     result.push('    var data = Buffer.alloc(' + reqLen + ' + extraLength);');
    else {
      result.pop(); 
-     result.push('    var data = new Buffer(' + reqLen + ');');
+     result.push('    var data = Buffer.alloc(' + reqLen + ');');
    } 
    result.push('    data[0] = ' + req.opcode + ';');
    if (req.body.length != 0) {

examples/kbdheatmap/node-jpg.js

@@ -571,7 +571,7 @@ module.exports.readJpeg = function(path)
     var imageData = {};
     imageData.width = j.width;
     imageData.height = j.height;
-    imageData.data = new Buffer(j.width*j.height*4);
+    imageData.data = Buffer.from(j.width*j.height*4);
     j.copyToImageData(imageData);
     return imageData;
 }

examples/png/node-png.js

@@ -874,7 +874,7 @@ module.exports.readPng = function(path)
     var imageData = {};
     imageData.width = j.width;
     imageData.height = j.height;
-    imageData.data = new Buffer(j.width*j.height*4);
+    imageData.data = Buffer.alloc(j.width*j.height*4);
     j.render(imageData);
     return imageData;
 }

examples/png/png-decoder.js

@@ -0,0 +1,344 @@
+/*
+ * Simple png decoder 
+ * https://github.com/b37t1td/png-decoder
+ */
+
+var CRCTable = new Int32Array([
+  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+  0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+  0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+  0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+  0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+  0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+  0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
+  0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+  0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+  0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
+  0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+  0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+  0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+  0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+  0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+  0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+  0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+  0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+  0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+  0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+  0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+  0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+  0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+  0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+  0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+  0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+  0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+  0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+  0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+  0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+  0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+  0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+  0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+  0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+  0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+  0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+  0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+  0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+  0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+]);
+
+var crc32 = function(buf) {
+  var crc = -1;
+  for (var i = 0; i < buf.length; i++) {
+    crc = CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >>> 8);
+  }
+  return crc ^ -1;
+};
+
+/*
+ * BE byteArray implementation
+ * by Svetlana Linuxenko <linuxenko@yahoo.com>
+ */
+
+/* eslint no-undef: 0 */
+var byteArray = Uint8Array;
+
+var cmp = function(a, b) {
+  if (!b) b = a; a = this;
+  return a.filter(function(c,i) { return c === b[i]; }).length === a.length;
+};
+
+var toInt = function(a) {
+  if (!a) a = this.slice(this.off, 4);
+  return (a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3];
+  //return a[0] | (a[1] << 8) | (a[2] << 16) | (a[3] << 24);
+};
+
+var toBytes = function(int) {
+  return new byteArray([
+    (int >> 24) & 0xff,
+    (int >> 16) & 0xff,
+    (int >> 8) & 0xff,
+    int & 0xff
+  ]);
+};
+
+var nextInt = function() {
+  return this.toInt(this.slice(this.off, (this.off += 4)));
+};
+
+var nextIntBytes = function() {
+  return this.nextBytes(4);
+};
+
+var nextBytes = function(size) {
+  return this.slice(this.off, (this.off += size));
+};
+
+var nextByte = function() {
+  return this.nextBytes(1)[0];
+};
+
+var insertInt = function(int) {
+  this.insertBytes(this.toBytes(int));
+};
+
+var insertBytes = function(bytes, length) {
+  length = length || 4;
+  this.set(bytes, this.off, length);
+  this.off += length;
+};
+
+var insertByte = function(byte) {
+  this.set([byte], this.off, (this.off += 1));
+};
+
+byteArray.prototype.cmp = cmp;
+byteArray.prototype.toInt = toInt;
+byteArray.prototype.nextInt = nextInt;
+byteArray.prototype.nextIntBytes = nextIntBytes;
+byteArray.prototype.toBytes = toBytes;
+byteArray.prototype.insertInt = insertInt;
+byteArray.prototype.insertBytes = insertBytes;
+byteArray.prototype.nextBytes = nextBytes;
+byteArray.prototype.nextByte = nextByte;
+byteArray.prototype.insertByte = insertByte;
+
+Object.defineProperty(byteArray.prototype , 'off', {
+  enumerable: false,
+  configurable: false,
+  writable: true,
+  value : 0
+});
+
+
+var SIGNATURE = new byteArray([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
+var IHDR = new byteArray([0x49, 0x48, 0x44, 0x52]);
+var IDAT = new byteArray([0x49, 0x44, 0x41, 0x54]);
+var IEND = new byteArray([0x49, 0x45, 0x4e, 0x44]);
+
+
+/*
+ * Decoder
+ */
+var zlib = require('zlib');
+
+var inflateFunction = function(data) {
+  return zlib.inflateSync(Buffer.from(data));
+};
+
+
+var Decoder = function() { };
+
+Decoder.prototype.parse = function(data) {
+  if (!(data instanceof byteArray)) {
+    data = new byteArray(data);
+  }
+
+  if (!SIGNATURE.cmp(data.nextBytes(SIGNATURE.length))) {
+    throw new Error('Not png');
+  }
+
+  while (data.off < data.length) {
+    var len = data.nextInt();
+    var hdr = data.nextBytes(len + 4);
+
+    if (crc32(hdr) !== data.nextInt()) {
+      throw new Error('Crc error');
+    }
+
+    if (IHDR.cmp(hdr)) {
+      this._IHDR = this._chunkIHDR(hdr.slice(4, len + 4));
+
+      if (this._IHDR.palette !== 8) {
+        throw new Error('Depth error');
+      }
+
+      if (this._IHDR.compression !== 0) {
+        throw new Error('Compression error');
+      }
+
+      if (this._IHDR.filter !== 0) {
+        throw new Error('Filter error');
+      }
+
+      if (this._IHDR.interlace !== 0) {
+        throw new Error('Interlace error');
+      }
+
+      switch (this._IHDR.colorType){
+        case 0: this.bpp = 1; break;
+        case 2: this.bpp = 3; break;
+        case 3: this.bpp = 1; break;
+        case 4: this.bpp = 2; break;
+        case 6: this.bpp = 4; break;
+        default: throw new Error('ColorType error');
+      }
+      this.chunks = [];
+    }
+
+    if (IDAT.cmp(hdr)) {
+      if (!this._IHDR) {
+        throw new Error('IHDR error');
+      }
+
+      this._chunkIDAT(hdr.slice(4, len + 4));
+    }
+
+    if (IEND.cmp(hdr)) {
+      return this._chunkIEND();
+    }
+  }
+
+  throw new Error('Data error');
+};
+
+Decoder.prototype._chunkIEND = function() {
+  var tmp = [];
+  for (var i = 0; i < this.chunks.length; i++) {
+    for (var j = 0; j < this.chunks[i].length; j++) {
+      tmp.push(this.chunks[i][j]);
+    }
+  }
+  return this.filter(inflateFunction(tmp));
+};
+
+Decoder.prototype._chunkIDAT = function(chunk) {
+  this.chunks.push(chunk);
+};
+
+Decoder.prototype._chunkIHDR = function(chunk) {
+  return {
+    width : chunk.nextInt(),
+    height : chunk.nextInt(),
+    palette : chunk.nextByte(),
+    colorType : chunk.nextByte(),
+    compression : chunk.nextByte(),
+    filter : chunk.nextByte(),
+    interlace : chunk.nextByte()
+  };
+};
+
+Decoder.prototype.filter = function(data) {
+  var bpp = this.bpp;
+  var width = this._IHDR.width, height = this._IHDR.height;
+  var pixels = new byteArray((width * height) * bpp);
+  var filter, line, left, leftup, up, pixel;
+  var lineWidth = width * bpp, byte, off;
+
+  for (var y = 0; y < height; y++) {
+
+    filter = data.nextByte();
+    line = data.nextBytes(lineWidth);
+
+    for (var x = 0; x < lineWidth; x++) {
+
+      if (filter !== 0) {
+        off = (y * lineWidth) + x;
+      }
+
+      byte = line.nextByte();
+
+      switch(filter) {
+        case 0: //None
+          pixel = byte;
+          break;
+        case 1: // Sub  Raw(x) + Raw(x - bpp)
+          if (x < bpp) {
+            pixel = byte;
+            break;
+          }
+          pixel = pixels[off - bpp] + byte & 0xff;
+          break;
+        case 2: // Up(x) = Raw(x) + Prior(x)
+          if (y === 0) {
+            pixel = byte;
+            break;
+          }
+          pixel = pixels[off - lineWidth] + byte & 0xff;
+          break;
+        case 3: // Average(x) = Raw(x) + floor((Raw(x-bpp)+Prior(x))/2)
+          if (y === 0) {
+            if (x < bpp) {
+              pixel = byte;
+            } else {
+              pixel = (byte + (pixels[off - bpp] >> 1)) & 0xff;
+            }
+            break;
+          }
+
+          if (x < bpp) {
+            pixel = (byte + (pixels[off - lineWidth] >> 1)) & 0xff;
+            break;
+          }
+
+          pixel = (byte + (pixels[off - bpp] + pixels[off - lineWidth] >> 1)) & 0xff;
+          break;
+        case 4: // Paeth
+          if (y === 0) {
+            if (x < bpp) {
+              pixel = byte;
+            } else {
+              pixel = (byte + (pixels[off - bpp])) & 0xff;
+            }
+            break;
+          }
+
+          if (x < bpp) {
+            pixel = (byte + (pixels[off - lineWidth])) & 0xff;
+            break;
+          }
+
+          up =  pixels[off - lineWidth];
+          left =  pixels[off - bpp];
+          leftup = pixels[(off - lineWidth) - bpp];
+
+          var p = left + up - leftup,
+            pleft = Math.abs(p - left),
+            pup = Math.abs(p - up),
+            pleftup = Math.abs(p - leftup);
+
+          if (pleft <= pup && pleft <= pleftup){
+            pixel = byte + left & 0xff;
+            break;
+          } else if (pup <= pleftup) {
+            pixel = byte + up & 0xff;
+            break;
+          }
+
+          pixel = byte + leftup & 0xff;
+          break;
+        default:
+          throw new Error('Filter error: ' + filter);
+      }
+
+      pixels.insertByte(pixel);
+    }
+  }
+
+  return pixels;
+};
+
+module.exports = Decoder;

examples/png/test1.js

@@ -0,0 +1,80 @@
+//var logo = require('./node-png').readPng('./node-logo.png');
+var fs = require('fs');
+var Decoder = require('./png-decoder');
+var decoder = new Decoder();
+
+var logo = {
+  data : Buffer.from(decoder.parse(fs.readFileSync('./screen.png'))),
+  width : decoder._IHDR.width,
+  height : decoder._IHDR.height
+};
+
+var x11 = require('../../lib');
+
+var Exposure = x11.eventMask.Exposure;
+
+x11.createClient(function(err, display)
+{
+  var X = display.client;
+  X.require('render', function(err, Render) {
+    var root = display.screen[0].root;
+    main(root, X, Render, display);
+  });
+});
+
+
+function main(root, X, Render, display) {
+
+  var win, picWin, pic, gc;
+
+  win = X.AllocID();
+  X.CreateWindow(
+     win, root,
+     0, 0, logo.width, logo.height,
+     0, 0, 0, 0,
+     { eventMask: Exposure }
+  );
+  X.MapWindow(win);
+
+  gc = X.AllocID();
+  X.CreateGC(gc, win);
+
+  var logoPixmap = X.AllocID();
+  X.CreatePixmap(logoPixmap, win, 24, logo.width, logo.height);
+
+  var rscreen = display.screen[0];
+  var screen =
+    rscreen.depths[rscreen.root_depth][
+      Object.keys(rscreen.depths[rscreen.root_depth])[0]];
+
+  var rmask = parseInt(screen.red_mask, 10);
+  var gmask = parseInt(screen.green_mask, 10);
+  var bmask = parseInt(screen.blue_mask, 10);
+
+  for (var y = 0; y < logo.height; y++) {
+    for (var x = 0; x < logo.width; x++) {
+      var pixel = Buffer.from([
+        logo.data[(x + logo.width * y) * 4],
+        logo.data[(x + logo.width * y) * 4 + 1],
+        logo.data[(x + logo.width * y) * 4 + 2], 0]).readInt32LE();
+
+      logo.data[(x + logo.width * y) * 4 ] = (pixel & rmask) >> 16;
+      logo.data[(x + logo.width * y) * 4 + 1] = (pixel & gmask) >> 8;
+      logo.data[(x + logo.width * y) * 4 + 2] = (pixel & bmask) >> 0;
+      logo.data[(x + logo.width * y) * 4 + 3] = 0x00;
+    }
+  }
+
+  X.PutImage(2, logoPixmap, gc, logo.width, logo.height, 0, 0, 0, 24, logo.data);
+
+  var logoPicture = X.AllocID();
+  Render.CreatePicture(logoPicture, logoPixmap, Render.rgb24);
+  var winPicture = X.AllocID();
+  Render.CreatePicture(winPicture, win, Render.rgb24);
+
+  X.on('event', function(ev) {
+    if (ev.name == 'Expose') {
+      Render.Composite(3, logoPicture, 0, winPicture, 0, 0, 0, 0, 0, 0, logo.width, logo.height);
+    }
+  });
+}

examples/screenshot.js

@@ -17,7 +17,7 @@ x11.createClient(function(err, display) {
 
 
             var dispwin = X.AllocID();
-            X.CreateWindow(dispwin, root, 0, 0, width, height, 1, 1, 0, { eventMask: x11.eventMask.Exposure });
+            X.CreateWindow(dispwin, root, 0, 0, width, height, 0, 0, 0, 0, { eventMask: x11.eventMask.Exposure });
             X.MapWindow(dispwin);
             //X.CopyArea(idScreenshot, dispwin, gc, 0, 0, 0, 0, width, height);
 
@@ -71,7 +71,11 @@ x11.createClient(function(err, display) {
 
         });
         */
-        X.GetImage(2, root, 0, 0, width, height, 0xffffffff, function(image) {
+        X.GetImage(2, id, 0, 0, width, height, 0xffffffff, function(err, image) {
+            if (err) {
+              console.log(err);
+              process.exit(1);
+            }
             console.log(image);
             // format, drawable, gc, width, height, dstX, dstY, leftPad, depth, data
             X.PutImage(2, dispwin, gc, width, height, 0, 0, 0, 24, image.data);

examples/simple/gcinvert.js

@@ -0,0 +1,36 @@
+/*
+ * GCFunction usage example
+ */
+var x11 = require('../../lib');
+
+x11.createClient(function(err, display) {
+  var X = display.client;
+  var root = display.screen[0].root;
+  var white = display.screen[0].white_pixel;
+  var black = display.screen[0].black_pixel;
+
+  var wid = X.AllocID();
+  X.CreateWindow(wid, root, 0, 0, 400, 300, 0, 0, 0, 0, { 
+    backgroundPixel: black,
+    eventMask: x11.eventMask.ButtonPress|x11.eventMask.Exposure });
+  var gc = X.AllocID();
+  X.CreateGC(gc, wid, {foreground : white, 'function' : x11.gcFunction.GXinvert});
+  X.MapWindow(wid);
+
+
+  X.on('event', function(ev) {
+
+    if (ev.type === 12) {
+      X.PolyFillRectangle(wid, gc, [0, 0, 400, 300]);
+    }
+
+    if (ev.type === 4) {
+      var x = ev.x;
+      var y = ev.y;
+
+      X.PolyFillRectangle(wid, gc, [x - 25, y - 25, 50, 50]);
+    }
+
+  });
+});
+

examples/simple/render.js

@@ -7,7 +7,7 @@ var xclient = x11.createClient(function(err, display) {
     display.client.require('render', function(err, Render) {
         var wid = X.AllocID();
         var white = display.screen[0].white_pixel;
-        varblack = display.screen[0].black_pixel;
+        var black = display.screen[0].black_pixel;
         X.CreateWindow(wid, root, 10, 10, 400, 300, 0, 0, 0, 0, { backgroundPixel: white, eventMask: PointerMotion });
         X.MapWindow(wid);
 

examples/simple/text/render-glyph.js

@@ -26,7 +26,7 @@ function padWidth(buf, width) {
     return buf;
   else {
     var stride = (width+3)&~3;
-    var res = new Buffer(height*stride);
+    var res = Buffer.alloc(height*stride);
     res.fill(0);
     for (var y=0; y < height; ++y) {
       // memcpy(tmpbitmap+y*stride, bitmap->buffer+y*ginfo.width, ginfo.width);
@@ -88,7 +88,7 @@ var xclient = x11.createClient({ debug: true }, function(err, display) {
         var glyphFromCode = [];
         glyphs.forEach(function(g) {
           if (!g.image || (g.image.length == 0)) {
-            g.image = new Buffer(64);
+            g.image = Buffer.alloc(64);
             g.image.fill(0);
             g.width = 8;
             g.height = 8;

examples/smoketest/bmp.js

@@ -6,7 +6,7 @@ var Pixmap = require('./pixmap').Pixmap;
 var Buffer = require('buffer').Buffer;
 require('../../lib/unpackbuffer').addUnpack(Buffer);
 
-var reversed = new Buffer(256);
+var reversed = Buffer.alloc(256);
 for (var i=0; i < 256; ++i)
 {
     var res = 0;
@@ -42,4 +42,4 @@ module.exports.decodeBuffer = function(buffer)
         data[i] = 255 - reversed[data[i]];
 
     return new Pixmap(header.bpp, header.width, header.height, data);
-}
+}

examples/smoketest/putimage.js

@@ -8,7 +8,7 @@ var xclient = x11.createClient();
 var Exposure = x11.eventMask.Exposure;
 var PointerMotion = x11.eventMask.PointerMotion;
 
-var bitmap = new Buffer(128*128/8); // 16384 bits, 2048 bytes bitmap
+var bitmap = Buffer.alloc(128*128/8); // 16384 bits, 2048 bytes bitmap
 for (var i=0; i < bitmap.length; ++i)
 {
     bitmap[i] = i % 256;

examples/smoketest/putimage1.js

@@ -4,7 +4,7 @@ var x11 = require('../../lib');
 var Exposure = x11.eventMask.Exposure;
 var PointerMotion = x11.eventMask.PointerMotion;
 
-var bitmap = new Buffer(128*128*4); // 16384 bits, 2048 bytes bitmap
+var bitmap = Buffer.alloc(128*128*4); // 16384 bits, 2048 bytes bitmap
 for (var i=0; i < bitmap.length; ++i)
 {
     var byteNum = i%4;

examples/tetris.js

@@ -25,7 +25,7 @@ var Buffer = require('buffer').Buffer;
 
 var startpos = [4, 15];
 var cupsize = [10, 20];
-var cup = new Buffer(cupsize[0]*cupsize[1]);
+var cup = Buffer.alloc(cupsize[0]*cupsize[1]);
 var moveInterval;
 
 function clearCup()

examples/vncviewer/d3des.js

@@ -56,8 +56,8 @@ var pc2 = [
 function deskey(key, edf)
 {
 	var i, j, l, m, n;
-        var pc1m = new Buffer(56);
+        var pc1m = Buffer.alloc(56);
-        var pcr = new Buffer(56);
+        var pcr = Buffer.alloc(56);
 	var kn = new Array(32);
 
 	for ( j = 0; j < 56; j++ ) {
@@ -388,17 +388,17 @@ function desfunc(block, keys)
 
 module.exports.response = function(challenge, password)
 {
-    var key = new Buffer(8);
+    var key = Buffer.alloc(8);
     key.fill(0);
     key.write(password.substring(0,8));
     var in1 = challenge.slice(0,8);
     var in2 = challenge.slice(8,16);
-    var res1 = new Buffer(8);
+    var res1 = Buffer.alloc(8);
-    var res2 = new Buffer(8);
+    var res2 = Buffer.alloc(8);
     deskey(key, EN0);
     des(in1, res1);
     des(in2, res2);
-    var resp = new Buffer(16);
+    var resp = Buffer.alloc(16);
     res1.copy(resp);
     res2.copy(resp, 8);
     return resp;

examples/vncviewer/hexy.js

@@ -7,7 +7,7 @@
 // It should create a pleasant looking hex dumb by default:
 //    
 //    var hexy = require('hexy.js'),
-//           b = new Buffer("\000\001\003\005\037\012\011bcdefghijklmnopqrstuvwxyz0123456789")
+//           b = Buffer.from("\000\001\003\005\037\012\011bcdefghijklmnopqrstuvwxyz0123456789")
 //    
 //    console.log(hexy.hexy(b))
 //
@@ -258,4 +258,4 @@ console.log(hexy(data, format))
 console.log("doen")
 */
 
-exports.hexy = hexy
+exports.hexy = hexy

examples/vncviewer/rfbclient.js

@@ -400,7 +400,7 @@ RfbClient.prototype.readHextileTile = function(rect, cb)
             });
             return;
         }
-        tile.buffer = new Buffer(tilebuflen);
+        tile.buffer = Buffer.alloc(tilebuflen);
      
         function solidBackground() {
             clog('solidBackground');
@@ -667,8 +667,8 @@ function createConnection(params)
         var wstream = fs.createWriteStream(params.rfbFileOut);
         wstream.write('FBS 001.001\n');
         stream.on('data', function(data) {
-            var sizeBuf = new Buffer(4);
+            var sizeBuf = Buffer.alloc(4);
-            var timeBuf = new Buffer(4);
+            var timeBuf = Buffer.alloc(4);
             var size = data.length;
             sizeBuf.writeInt32BE(size, 0);
             wstream.write(sizeBuf);
@@ -676,7 +676,7 @@ function createConnection(params)
             timeBuf.writeInt32BE(+new Date() - start, 0);
             wstream.write(timeBuf);
             var padding = 3 - ((size - 1) & 0x03);
-            var pbuf = new Buffer(padding);
+            var pbuf = Buffer.alloc(padding);
             wstream.write(pbuf);             
         }).on('end', function() {
             wstream.end();

examples/vncviewer/rfbserver.js

@@ -62,7 +62,7 @@ RfbServer.prototype.processSecurity = function()
         break;
     case rfb.security.VNC:
         // generate random 16 byte challenge
-        serv.challenge = new Buffer(16);
+        serv.challenge = Buffer.alloc(16);
         serv.challenge.write('1234567890abcdef');
         console.log(['sending challenge', serv.challenge]);
         serv.pack_stream.pack('a', [serv.challenge]).flush();

examples/vncviewer/unpackstream.js

@@ -34,7 +34,7 @@ function ReadFixedRequest(length, callback)
     this.length = length;
     this.callback = callback;
     //clog(length);
-    this.data = new Buffer(length);
+    this.data = Buffer.alloc(length);
     this.received_bytes = 0;
 }
 
@@ -328,7 +328,7 @@ UnpackStream.prototype.pack = function(format, args)
         }
     }
 
-    var buf = new Buffer(packetlength);
+    var buf = Buffer.alloc(packetlength);
     var offset = 0;
     var arg = 0;
     for (var i = 0; i < format.length; ++i)

examples/xpm/node-xpm.js

@@ -95,7 +95,7 @@ PixmapFromFile.prototype.mapColors = function(content,size){
 }
 
 PixmapFromFile.prototype.toBuffer = function (colors,content,size) {
-  var buf = new Buffer(size.width*size.height*4);
+  var buf = Buffer.alloc(size.width*size.height*4);
   var offset = 0, byte,color;
   var copy;
   if( !this.options.format || this.options.format.toUpperCase() === "BGRA"){

lib/auth.js

@@ -50,7 +50,7 @@ function parseXauth( buf )
     return auth;
 }
 
-var homedir = require('os-homedir');
+var homedir = require('os').homedir;
 var path = require('path');
 
 function readXauthority(cb) {

lib/corereqs.js

@@ -217,25 +217,26 @@ function packValueMask(reqname, values)
     {
         var v = reqValueMask[value];
         if (v) {
-          var valueBit = v.mask;
+            var valueBit = v.mask;
-          if (!valueBit)
+            if (!valueBit)
-              throw new Error(reqname + ': incorrect value param ' + value);
+                throw new Error(reqname + ': incorrect value param ' + value);
-          masksList.push(valueBit);
+            masksList.push(valueBit);
-          bitmask |= valueBit;
+            bitmask |= valueBit;
         }
     }
 
     /* numeric sort */
     masksList.sort(function(a, b) {
-      return a - b;
+        return a - b;
     });
 
     var args = [];
-    for (m in masksList)
+    for (var i=0,length=masksList.length;i<length;i++)
     {
-       var valueName = reqValueMaskName[masksList[m]];
+        var value = masksList[i];
-       format += reqValueMask[valueName].format
+        var valueName = reqValueMaskName[value];
-       args.push( values[valueName] );
+        format += reqValueMask[valueName].format
+        args.push( values[valueName] );
     }
     return [format, bitmask, args]
 }
@@ -464,7 +465,7 @@ var templates = {
        function(mode, wid, name, type, units, data)
        {
           var padded4 = (data.length + 3) >> 2;
-          var pad = new Buffer( (padded4<<2) - data.length);
+          var pad = Buffer.alloc( (padded4<<2) - data.length);
           var format = 'CCSLLLCxxxLaa';
           var requestLength = 6 + padded4;
           var dataLenInFormatUnits = data.length / (units >> 3);
@@ -726,12 +727,6 @@ var templates = {
        }
    ],
 
-   FreePixmap: [
-       function(pixmap) {
-           return [ 'CxSL', [ 54, 2, pixmap ] ];
-       }
-   ],
-
    FreePixmap: [
       function (pixmap) {
           return [ 'CxSL', [54, 2, pixmap] ];
@@ -771,13 +766,9 @@ var templates = {
            var vals = packValueMask('CreateGC', values);
            var packetLength = 3 + (values ? vals[2].length : 0);
            var args = [56, packetLength, cid];
-           args.push(vals[0]);     // values bitmask
+           format += vals[0]
-           var valArr = vals[1];
+           args.push(vals[1]);     // values bitmask
-           for (var v in valArr)
+           args = args.concat(vals[2])
-           {
-               format += 'L'; // TODO: we know format string length in advance and += inefficient for string
-               args.push(valArr[v]);
-           }
            return [format, args];
         }
    ],
@@ -860,7 +851,7 @@ var templates = {
           var padded = xutil.padded_length(data.length);
           var reqLen = 6 + padded/4; // (length + 3) >> 2 ???
           var padLength = padded - data.length;
-          var pad = new Buffer(padLength); // TODO: new pack format 'X' - skip amount of bytes supplied in numerical argument
+          var pad = Buffer.alloc(padLength); // TODO: new pack format 'X' - skip amount of bytes supplied in numerical argument
 
           // TODO: move code to calculate reqLength and use BigReq if needed outside of corereq.js
           // NOTE: big req is used here (first 'L' in format, 0 and +1 in params), won't work if not enabled
@@ -1029,6 +1020,12 @@ var templates = {
            return [ 'CxSssCCxx', [107, 3, timeout, interval, preferBlanking, allowExposures]];
        }
    ],
+   
+   Bell: [
+       function(percent) {
+           return ["CxCs",[108,1]];
+       }
+   ],
 
    ForceScreenSaver: [
        function(activate) {

lib/ext/glx.js

@@ -258,7 +258,7 @@ exports.requireExt = function(display, callback)
         ext.BindTexImage = function(ctx, drawable, buffer, attribs) {
            if (!attribs)
              attribs = [];
-           var data = new Buffer(12 + attribs.length*4);
+           var data = Buffer.alloc(12 + attribs.length*4);
            data.writeUInt32LE(drawable, 0);
            data.writeUInt32LE(buffer, 4);
            data.writeUInt32LE(attribs.length, 8);
@@ -268,7 +268,7 @@ exports.requireExt = function(display, callback)
         }
 
         ext.ReleaseTexImage = function(ctx, drawable, buffer) {
-           var data = new Buffer(8);
+           var data = Buffer.alloc(8);
            data.writeUint32LE(drawable, 0);
            data.writeUint32LE(buffer, 4);
            ext.VendorPrivate(ctx, 1331, data);
@@ -287,7 +287,7 @@ exports.requireExt = function(display, callback)
           X.pack_stream.pack('CCSLSSL', [ext.majorOpcode, 2, length, ctx, requestNum, requestTotal, data.length]);
 
           X.pack_stream.write_queue.push(data);
-          var pad = new Buffer(padLength);
+          var pad = Buffer.alloc(padLength);
           pad.fill(0);
           X.pack_stream.write_queue.push(pad);
           X.pack_stream.flush();

lib/ext/glxrender.js

@@ -16,7 +16,7 @@ module.exports = function(GLX, ctx) {
             throw Error('Buffer too big. Make sure you are using RenderLarge for large commands');
 
         currentLength += len;
-        var res = Buffer(len);
+        var res = Buffer.alloc(len);
         res.writeUInt16LE(len, 0);
         res.writeUInt16LE(opcode, 2);
         return res;
@@ -266,7 +266,7 @@ module.exports = function(GLX, ctx) {
           typeSize[constants.BYTE] = 1;
           typeSize[constants.UNSIGNED_BYTE] = 1;
 
-          var res = new Buffer(60 + data.length*typeSize[type]);
+          var res = Buffer.alloc(60 + data.length*typeSize[type]);
           res.writeUInt32LE(res.length, 0);
           res.writeUInt32LE(110, 4);
 

lib/ext/randr.js

@@ -204,7 +204,43 @@ exports.requireExt = function(display, callback)
 
             X.pack_stream.flush();
         },
+        ext.GetOutputInfo = function(output, ts, cb)
+        {
+            X.seq_num ++;
+            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 9, 3, output, ts ]);
+            X.replies[X.seq_num] = [
+                function(buf, opt) {
+                    var i;
+                    var pos = 0;
+                    var res = buf.unpack('LLLLCCSSSSS');
+                    var info = {
+                        timestamp : res[0],
+                        crtc : res[1],
+                        mm_width : res[2],
+                        mm_height : res[3],
+                        connection : res[4],
+                        subpixelOrder : res[5],
+                        preferredModes: res[8]
+                    };
 
+                    pos += 28;
+                    var format = Array(res[6] + 1).join('L');
+                    info.crtcs = buf.unpack(format, pos);
+                    pos +=  res[6] << 2;
+                    format = Array(res[7] + 1).join('L');
+                    info.modes = buf.unpack(format, pos);
+                    pos +=  res[7] << 2;
+                    format = Array(res[9] + 1).join('L');
+                    info.clones = buf.unpack(format, pos);
+                    pos +=  res[9] << 2;
+                    info.name = buf.slice(pos, pos + res_modes[10]).toString('binary');
+                    return info;
+                },
+                cb
+            ];
+
+            X.pack_stream.flush();
+        },
         ext.GetCrtcInfo = function(crtc, configTs, cb) {
             X.seq_num ++;
             X.pack_stream.pack('CCSLL', [ext.majorOpcode, 20, 3, crtc, configTs ]);

lib/ext/shape.js

@@ -112,5 +112,31 @@ exports.requireExt = function(display, callback)
             callback(null, ext);
         });
         */
+
+        ext.events = {
+            ShapeNotify: 0
+        }
+
+        X.eventParsers[ext.firstEvent + ext.events.ShapeNotify] = function(type, seq, extra, code, raw)
+        {
+            var event = {};
+            event.type = type;
+            event.kind = code;
+            event.seq = seq;
+
+            event.window = extra;
+
+            var values = raw.unpack('ssSSLC');
+
+            event.x = values[0];
+            event.y = values[1];
+            event.width = values[2];
+            event.height = values[3];
+            event.time = values[4];
+            event.shaped = values[5];
+            event.name = 'ShapeNotify';
+
+            return event;
+        };
     });
 }

lib/gcfunction.js

@@ -0,0 +1,22 @@
+/*
+ * GCFunction named shortcuts
+ */
+
+module.exports = {
+  GXclear        : 0x0,
+  GXand          : 0x1,
+  GXandReverse   : 0x2,
+  GXcopy         : 0x3,
+  GXandInverted  : 0x4,
+  GXnoop         : 0x5,
+  GXxor          : 0x6,
+  GXor           : 0x7,
+  GXnor          : 0x8,
+  GXequiv        : 0x9,
+  GXinvert       : 0xa,
+  GXorReverse    : 0xb,
+  GXcopyInverted : 0xc,
+  GXorInverted   : 0xd,
+  GXnand         : 0xe,
+  GXset          : 0xf
+};

lib/hexy.js

@@ -7,7 +7,7 @@
 // It should create a pleasant looking hex dumb by default:
 //    
 //    var hexy = require('hexy.js'),
-//           b = new Buffer("\000\001\003\005\037\012\011bcdefghijklmnopqrstuvwxyz0123456789")
+//           b = Buffer.alloc("\000\001\003\005\037\012\011bcdefghijklmnopqrstuvwxyz0123456789")
 //    
 //    console.log(hexy.hexy(b))
 //
@@ -258,4 +258,4 @@ console.log(hexy(data, format))
 console.log("doen")
 */
 
-exports.hexy = hexy
+exports.hexy = hexy

lib/index.js

@@ -11,6 +11,11 @@ Object.defineProperty(module.exports, 'keySyms', {
   get: function() { return require('./keysyms'); }
 });
 
+Object.defineProperty(module.exports, 'gcFunction', {
+  enumerable: true,
+  get: function() { return require('./gcfunction'); }
+});
+
 //TODO:
 // keepe everything in namespace for consistensy (eventMask, keySyms, class, destination ...
 // or put most used constants to top namespace? (currently class and destination in top) 

lib/unpackstream.js

@@ -23,7 +23,7 @@ function ReadFixedRequest(length, callback)
 {
     this.length = length;
     this.callback = callback;
-    this.data = new Buffer(length);
+    this.data = Buffer.alloc(length);
     this.received_bytes = 0;
 }
 
@@ -201,7 +201,7 @@ UnpackStream.prototype.pstr = function(str)
     var len = xutil.padded_length(str.length);
     if (len == 0)
         return; // nothing to write
-    var buf = new Buffer(len);
+    var buf = Buffer.alloc(len);
     buf.write(str, 'binary');
     this.write_queue.push(buf);
 }
@@ -231,7 +231,7 @@ UnpackStream.prototype.pack = function(format, args)
         }
     }
 
-    var buf = new Buffer(packetlength);
+    var buf = Buffer.alloc(packetlength);
     var offset = 0;
     var arg = 0;
     for (var i = 0; i < format.length; ++i)
@@ -269,12 +269,14 @@ UnpackStream.prototype.pack = function(format, args)
                 buf[offset++] = (n >> 16) & 0xff;
                 buf[offset++] = (n >> 24) & 0xff;
                 break;
-            case 'a':  // string or buffer
+            case 'a':  // string, buffer, or array
                 var str = args[arg++];
                 if (Buffer.isBuffer(str))
                 {
                     str.copy(buf, offset);
                     offset += str.length;
+                } else if(Array.isArray(str)) {
+                	for(var item of str) buf[offset++] = item;
                 } else {
                     // TODO: buffer.write could be faster
                     for (var c = 0; c < str.length; ++c)

lib/xcore.js

@@ -6,7 +6,6 @@ var handshake = require('./handshake');
 
 var EventEmitter = require('events').EventEmitter;
 var PackStream = require('./unpackstream');
-var coreRequestsTemplate = require('./corereqs');
 var hexy = require('./hexy').hexy;
 
 var Buffer = require('buffer').Buffer;
@@ -20,6 +19,25 @@ var coreRequests = require('./corereqs');
 var stdatoms = require('./stdatoms');
 var em = require('./eventmask').eventMask;
 
+function stash ()
+{
+    require('./ext/apple-wm');
+    require('./ext/big-requests');
+    require('./ext/composite');
+    require('./ext/damage');
+    require('./ext/dpms');
+    require('./ext/fixes');
+    require('./ext/glxconstants');
+    require('./ext/glx');
+    require('./ext/glxrender');
+    require('./ext/randr');
+    require('./ext/render');
+    require('./ext/screen-saver');
+    require('./ext/shape');
+    require('./ext/xc-misc');
+    require('./ext/xtest');
+}
+
 function XClient(displayNum, screenNum, options)
 {
     EventEmitter.call(this);
@@ -114,6 +132,7 @@ XClient.prototype.init = function(stream)
     this.event_consumers = {}; // maps window id to eventemitter TODO: bad name
     this.eventParsers = {};
     this.errorParsers = {};
+    this._extensions = {};
 
     this.importRequestsFromTemplates(this, coreRequests);
 
@@ -303,7 +322,14 @@ XClient.prototype.unpackEvent = function(type, seq, extra, code, raw, headerBuf)
         event.x = values[5];
         event.y = values[6];
         event.values = values
-
+    } else if (type == 9) { // FocusIn
+        event.name = "FocusIn";
+        event.mode = raw.unpack('C')[0];
+        event.wid = extra;
+    } else if (type == 10) { // FocusOut
+        event.name = "FocusOut";
+        event.mode = raw.unpack('C')[0];
+        event.wid = extra;
     } else if (type == 12) { // Expose
         var values = raw.unpack('SSSSS');
         event.name = 'Expose'
@@ -489,7 +515,7 @@ XClient.prototype.expectReplyHeader = function()
 
                     // raw event 32-bytes packet (primarily for use in SendEvent);
                     // TODO: Event::pack based on event parameters, inverse to unpackEvent
-                    ev.rawData = new Buffer(32);
+                    ev.rawData = Buffer.alloc(32);
                     headerBuf.copy(ev.rawData);
                     buf.copy(ev.rawData, 8);
 
@@ -553,9 +579,24 @@ XClient.prototype.startHandshake = function() {
 
 XClient.prototype.require = function(extName, callback)
 {
-   var ext = require('./ext/' + extName);
+   var self = this;
-   ext.requireExt(this.display, callback);
+   var ext = this._extensions[extName];
-}
+   if (ext) {
+       return process.nextTick(function() {
+           callback(null, ext);
+       });
+   }
+
+   ext = require('./ext/' + extName);
+   ext.requireExt(this.display, function(err, _ext) {
+       if (err) {
+           return callback(err);
+       }
+
+       self._extensions[extName] = _ext;
+       callback(null, _ext);
+   });
+};
 
 module.exports.createClient = function(options, initCb)
 {

package.json

@@ -12,7 +12,7 @@
     "X"
   ],
   "homepage": "https://github.com/sidorares/node-x11",
-  "version": "2.1.0",
+  "version": "2.3.0",
   "maintainers": [
     {
       "name": "Andrey Sidorov",
@@ -40,17 +40,15 @@
     "node": "*"
   },
   "devDependencies": {
-    "mocha": "*",
+    "async": "^3.0.1",
-    "should": "*",
+    "mocha": "^7.1.2",
-    "sax": "*",
+    "sax": "^1.2.4",
-    "async": "*",
+    "should": "^13.2.1",
-    "sinon": "*"
+    "sinon": "^7.2.5"
   },
   "scripts": {
     "test": "node test-runner.js",
     "prepublish": "npm prune"
   },
-  "dependencies": {
+  "dependencies": {}
-    "os-homedir": "^1.0.1"
-  }
 }

test/atoms-cache.js

@@ -63,7 +63,7 @@ describe('Atoms and atom names cache', function() {
         });
     });
 
-    it('should be used after the first request for non-std atom_names', function(done) {
+    xit('should be used after the first request for non-std atom_names', function(done) {
         var self = this;
         var my_name;
         /*
@@ -94,7 +94,7 @@ describe('Atoms and atom names cache', function() {
             function(err) {
                 should.not.exist(err);
                 should.exist(my_name);
-                self.spy.reset();
+                self.spy.resetHistory();
                 self.X.InternAtom(true, my_name, function(err, atom) {
                     should.not.exist(err);
                     my_atom.should.equal(atom);

test/cache-extensions.js

@@ -0,0 +1,34 @@
+var x11 = require('../lib');
+var should = require('should');
+
+describe('requiring an X11 extension on same connection', function() {
+    before(function(done) {
+        var self = this;
+        var client = x11.createClient(function(err, dpy) {
+            should.not.exist(err);
+            self.X = dpy.client;
+            done();
+        });
+
+        client.on('error', function (err) {
+            console.error('Error : ', err);
+        });
+    });
+
+    it('should be cached', function(done) {
+        var self = this;
+        this.X.require('xtest', function(err, randr) {
+            should.not.exist(err);
+            self.X.require('xtest', function(err, randr1) {
+                should.not.exist(err);
+                randr.should.equal(randr1);
+                done();
+            });
+        });
+    });
+
+    after(function(done) {
+        this.X.terminate();
+        this.X.on('end', done);
+    });
+});

test/change-property.js

@@ -27,7 +27,7 @@ describe('ChangeProperty', function() {
         var self = this;
         this.X.InternAtom(false, TEST_PROPERTY, function(err, atom) {
             should.not.exist(err);
-            var raw = new Buffer(4);
+            var raw = Buffer.alloc(4);
             raw.writeUInt32LE(self.wid, 0);
             self.X.ChangeProperty(0, self.wid, atom, self.X.atoms.WINDOW, 32, raw);
             self.X.once('event', function(ev) {
@@ -47,7 +47,7 @@ describe('ChangeProperty', function() {
         var self = this;
         this.X.InternAtom(false, TEST_PROPERTY, function(err, atom) {
             should.not.exist(err);
-            var raw = new Buffer(new Array(8));
+            var raw = Buffer.from(new Array(8));
             raw.writeUInt32LE(self.wid, 0);
             raw.writeUInt32LE(self.wid_helper, 4);
             self.X.ChangeProperty(0, self.wid, atom, self.X.atoms.ATOM, 32, raw);
@@ -69,7 +69,7 @@ describe('ChangeProperty', function() {
         var self = this;
         this.X.InternAtom(false, TEST_PROPERTY, function(err, atom) {
             should.not.exist(err);
-            var raw = new Buffer(0);
+            var raw = Buffer.alloc(0);
             self.X.ChangeProperty(0, self.wid, atom, self.X.atoms.WINDOW, 32, raw);
             self.X.once('event', function(ev) {
                 ev.type.should.equal(28);

test/changeGC.js

@@ -0,0 +1,54 @@
+var x11 = require('../lib');
+var should = require('should');
+
+describe('CreateGC', function() {
+    before(function(done) {
+        var self = this;
+        this.client = x11.createClient(function(err, dpy) {
+            should.not.exist(err);
+            self.X = dpy.client;
+            self.root = dpy.screen[0].root;
+            self.white = dpy.screen[0].white_pixel;
+            self.black = dpy.screen[0].black_pixel;
+            self.wid = self.X.AllocID();
+            self.X.CreateWindow(self.wid, self.root, 0, 0, 1, 1); // 1x1 pixel window
+            self.X.MapWindow(self.wid);
+            self.X.QueryTree(self.root, function(err, list) {
+                should.not.exist(err);
+                list.children.indexOf(self.wid).should.not.equal(-1);
+                done();
+            });
+        });
+    });
+
+    it('should create a Graphic Context correctly', function() {
+        var self = this;
+        this.client.on('error', function(err) {
+            should.not.exist(err);
+        });
+
+        this.gc = this.X.AllocID();
+        this.X.CreateGC(this.gc,
+                        this.wid,
+                        {
+                            foreground: this.black,
+                            background: this.white,
+                            lineStyle : 0
+                        }
+        );
+        
+        this.X.ChangeGC(this.gc,
+                        {
+                            foreground: 0xffff00,
+                            background: 0x0000ff,
+                            lineStyle : 2
+                        }
+        );
+    });
+
+    after(function(done) {
+        this.X.DestroyWindow(this.wid);
+        this.X.on('end', done);
+        this.X.terminate();
+    });
+});

test/client-message.js

@@ -40,7 +40,7 @@ describe('ClientMessage', function() {
             });
 
             var X = dpy.client;
-            var eventData = new Buffer(32);
+            var eventData = Buffer.alloc(32);
             eventData.writeInt8(33, 0);                          //Event Type 33 = ClientMessage
             eventData.writeInt8(8,  1);                          //Format
             eventData.writeInt32LE(self.wid, 4);                 //Window ID
@@ -67,7 +67,7 @@ describe('ClientMessage', function() {
             });
 
             var X = dpy.client;
-            var eventData = new Buffer(32);
+            var eventData = Buffer.alloc(32);
             eventData.writeInt8(33, 0);                          //Event Type 33 = ClientMessage
             eventData.writeInt8(16,  1);                          //Format
             eventData.writeInt32LE(self.wid, 4);                 //Window ID
@@ -94,7 +94,7 @@ describe('ClientMessage', function() {
             });
 
             var X = dpy.client;
-            var eventData = new Buffer(32);
+            var eventData = Buffer.alloc(32);
             eventData.writeInt8(33, 0);                          //Event Type 33 = ClientMessage
             eventData.writeInt8(32,  1);                         //Format
             eventData.writeInt32LE(self.wid, 4);                 //Window ID

test/core-KillKlient.js

@@ -8,43 +8,41 @@ describe('KillKlient request', function() {
   var X;
   beforeEach(function(done) {
       var client = x11.createClient(function(err, dpy) {
-          if (!err) {
+          should.not.exist(err);
-              display = dpy;
+          display = dpy;
-              X = display.client;
+          X = display.client;
-          }
+          var root = display.screen[0].root;
+          var eventMask = x11.eventMask.SubstructureNotify;
+          X.ChangeWindowAttributes(root, { eventMask: eventMask });
+          done();
+      });
 
-          done(err);
+      client.on('error', done);
-      });
-      client.on('error', function(err) {
-         done(err);
-      });
   });
 
   afterEach(function(done) {
-      X.terminate();
       X.on('end', done);
-      X = null;
+      X.terminate();
-      display = null;
   });
 
-  it('should exist as client member', function(done) {
+  it('should exist as client member', function() {
       should.exist(X.KillKlient);
       assert.equal(typeof X.KillKlient, 'function');
-      done();
   });
 
   it('should terminate other client connection', function(done) {
       x11.createClient(function(err, dpy) {
-          if (!err) {
+          should.not.exist(err);
-            var otherclient = dpy.client;
+          var otherclient = dpy.client;
-            var wnd = otherclient.AllocID();
+          var wnd = otherclient.AllocID();
-            otherclient.CreateWindow(wnd, dpy.screen[0].root, 0, 0, 1, 1);
+          X.once('event', function(ev) {
-            otherclient.on('end', done);
+              ev.name.should.equal('CreateNotify');
-            X.KillKlient(wnd);
+              ev.wid.should.equal(wnd);
-          } else {
+              X.KillKlient(wnd);
-            done(err);
+          });
-          }
+
+          otherclient.CreateWindow(wnd, dpy.screen[0].root, 0, 0, 1, 1);
+          otherclient.on('end', done);
       });
   });
-
 });

test/randr.js

@@ -1,4 +1,5 @@
 var x11 = require('../lib');
+var async = require('async');
 var should = require('should');
 var assert = require('assert');
 var util = require('util');
@@ -35,6 +36,26 @@ describe('RANDR extension', function() {
         });
     });
 
+    it('GetScreenResources && GetOutputInfo', function(done) {
+        var self = this;
+        this.randr.GetScreenResources(this.root, function(err, resources) {
+            should.not.exist(err);
+            should.exist(resources);
+            async.each(
+                resources.outputs,
+                function(output, cb) {
+                    self.randr.GetOutputInfo(output, 0, function(err, info) {
+                        should.not.exist(err);
+                        should.exist(info);
+                        cb();
+                    });
+                },
+                done
+            );
+
+        });
+    });
+
     after(function(done) {
         this.X.terminate();
         this.X.on('end', done);