From c473c9cad7128f800c29554686e956460adbec12 Mon Sep 17 00:00:00 2001
From: Andrey Sidorov <sidorares@yandex.com>
Date: Tue, 27 Nov 2012 10:42:35 +1100
Subject: [PATCH] initial implementation for fixes extension

---
 examples/smoketest/fixestest.js | 17 ++++++++
 lib/x11/ext/fixes.js            | 73 +++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 examples/smoketest/fixestest.js
 create mode 100644 lib/x11/ext/fixes.js

diff --git a/examples/smoketest/fixestest.js b/examples/smoketest/fixestest.js
new file mode 100644
index 0000000..b31341e
--- /dev/null
+++ b/examples/smoketest/fixestest.js
@@ -0,0 +1,17 @@
+var x11 = require('../../lib/x11');
+
+x11.createClient(function(display) {
+    var X = display.client;
+    var root = display.screen[0].root;
+    X.require('fixes', function(Fixes) {
+        console.log(Fixes);
+        var win = X.AllocID();
+        X.CreateWindow(win, root, 0, 0, 100, 100);
+        //Fixes.ChangeSaveSet(win, Fixes.SaveSetMode.Insert, Fixes.SaveSetTarget.Nearest, Fixes.SaveSetMap.Map);
+        X.on('event', function(ev) {
+          console.log(ev);
+        });
+    });
+    X.on('error', function(err) { console.log(err); });
+
+});
diff --git a/lib/x11/ext/fixes.js b/lib/x11/ext/fixes.js
new file mode 100644
index 0000000..6152b72
--- /dev/null
+++ b/lib/x11/ext/fixes.js
@@ -0,0 +1,73 @@
+// http://www.x.org/releases/X11R7.6/doc/fixesproto/fixesproto.txt
+
+var x11 = require('..');
+// TODO: move to templates
+
+exports.requireExt = function(display, callback) 
+{
+    var X = display.client;
+    X.QueryExtension('XFIXES', function(err, ext) {  
+
+        if (!ext.present)
+            return callback(new Error('extension not available'));
+
+        ext.QueryVersion = function(clientMaj, clientMin, callback)
+        {
+            X.seq_num++;
+            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 0, 3, clientMaj, clientMin]);
+            X.replies[X.seq_num] = [
+                function(buf, opt) {
+                    var res = buf.unpack('LL');                 
+                    return res;
+                },
+                callback
+            ];
+            X.pack_stream.flush();
+        }
+
+        ext.SaveSetMode = { Insert: 0, Delete: 1 };
+        ext.SaveSetTarget = { Nearest: 0, Root: 1 };
+        ext.SaveSetMap = { Map: 0, Unmap: 1 };
+
+        ext.ChangeSaveSet = function(window, mode, target, map) {
+            X.seq_num++;
+            X.pack_stream.pack('CCSCCxL', [ext.majorOpcode, 1, 3, mode, target, map]);
+            X.pack_stream.flush();
+        };
+
+        ext.QueryVersion(5, 0, function(err, vers) {
+            ext.major = vers[0];
+            ext.minor = vers[1];
+            callback(ext);
+        });
+
+        ext.events = {
+            DamageNotify: 0
+        }
+
+        X.eventParsers[ext.firstEvent + ext.events.DamageNotify] = function(type, seq, extra, code, raw) 
+        {
+            var event = {};
+            event.level = code;
+            event.seq = seq;
+            event.drawable = extra;
+            var values = raw.unpack('LLssSSssSS');
+            event.damage = values[0];
+            event.time = values[1];
+            event.area = {
+              x: values[2],                        
+              y: values[3],                        
+              w: values[4],                        
+              h: values[5]                        
+            };
+            event.geometry = {
+              x: values[6],                        
+              y: values[7],                        
+              w: values[8],                        
+              h: values[9]                        
+            };
+            event.name = 'DamageNotify';
+            return event;
+        };
+    });
+}