From e6c683d631550c882b86fbaaff623e14324d1d7c Mon Sep 17 00:00:00 2001
From: Andrey Sidorov <sidorares@yandex.ru>
Date: Tue, 28 Feb 2012 17:18:12 +1100
Subject: [PATCH] window manager

---
 examples/wm/wm.js | 87 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 examples/wm/wm.js

diff --git a/examples/wm/wm.js b/examples/wm/wm.js
new file mode 100644
index 0000000..5f2d8f3
--- /dev/null
+++ b/examples/wm/wm.js
@@ -0,0 +1,87 @@
+var x11 = require('../../lib/x11');
+var EventEmitter = require('events').EventEmitter;
+
+var X, root;
+var events = x11.eventMask.Button1Motion|x11.eventMask.ButtonPress|x11.eventMask.ButtonRelease|x11.eventMask.SubstructureNotify|x11.eventMask.SubstructureRedirect
+var frames = {};
+var dragStart = null;
+
+function ManageWindow(wid)
+{
+    X.GetWindowAttributes(wid, function(attrs) {
+
+        if (attrs[8])
+        {
+            X.MapWindow(wid);
+            return;
+        }
+
+    var fid = X.AllocID();
+    frames[fid] = 1;
+    var winX, winY;
+    winX = parseInt(Math.random()*300);
+    winY = parseInt(Math.random()*300);
+    
+    X.GetGeometry(wid, function(clientGeom) {
+        var width = clientGeom.width + 4;
+        var height = clientGeom.height + 24;
+        X.CreateWindow(fid, root, winX, winY, width, height, 1, 1, 0,
+        { 
+            backgroundPixel: 0xffffe0, 
+            eventMask: events 
+        });
+        var ee = new EventEmitter();
+        X.event_consumers[fid] = ee;
+        ee.on('event', function(ev)
+        {
+            if (ev.type === 17) // DestroyNotify
+            {
+               X.DestroyWindow(fid);
+            } else if (ev.type == 4) {
+                dragStart = { rootx: ev.rootx, rooty: ev.rooty, x: ev.x, y: ev.y, winX: winX, winY: winY };
+            } else if (ev.type == 5) {
+                dragStart = null;
+            } else if (ev.type == 6) {
+                winX = dragStart.winX + ev.rootx - dragStart.rootx;
+                winY = dragStart.winY + ev.rooty - dragStart.rooty;
+                X.MoveWindow(fid, winX, winY);
+            }
+        });
+        X.ChangeSaveSet(1, wid);
+        X.ReparentWindow(wid, fid, 1, 21);
+        X.MapWindow(fid);
+        X.MapWindow(wid);
+    });
+
+    });
+}
+
+x11.createClient(function(display) {
+    X = display.client;
+    root = display.screen[0].root;
+    console.log('root = ' + root);
+    X.ChangeWindowAttributes(root, { eventMask: x11.eventMask.SubstructureRedirect }, function(err) {
+        if (err.error == 10)
+        {
+            console.error('Error: another window manager already running.');
+            process.exit(1);
+        }
+    });
+    X.QueryTree(root, function(tree) {
+        tree.children.forEach(ManageWindow);
+    });
+}).on('error', function(err) {
+    console.error(err);
+}).on('event', function(ev) {
+    console.log(ev);
+    if (ev.type === 20)        // MapRequest
+    {
+        if (!frames[ev.wid])
+            ManageWindow(ev.wid);
+        return;
+    } else if (ev.type === 23) // ConfigureRequest
+    {
+        X.ResizeWindow(ev.wid, ev.width, ev.height);
+    }
+    console.log(ev);
+});