SHAPE extension

lib/x11/ext/shape.js

@@ -0,0 +1,91 @@
+// http://www.x.org/releases/X11R7.6/doc/xextproto/shape.pdf
+
+var x11 = require('..');
+// TODO: move to templates
+
+exports.requireExt = function(display, callback) 
+{
+        function captureStack()
+        {
+            var err = new Error;
+            //err.name = reqName;
+            Error.captureStackTrace(err, arguments.callee);
+            display.client.seq2stack[display.client.seq_num] = err.stack;
+        }
+
+    var X = display.client;
+    X.QueryExtension('SHAPE', function(err, ext) {  
+
+        if (!ext.present)
+            callback(new Error('extension not available'));
+
+        ext.Kind = { 
+            Bounding: 0,
+	    Clip: 1,
+            Input: 2
+        };
+
+        ext.Op = {
+            Set: 0,
+            Union: 1,
+            Intersect: 2,
+            Subtract: 3,
+            Invert: 4
+        }
+
+        ext.QueryVersion = function(cb)
+        {
+            X.seq_num++;
+            captureStack();
+            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 0, 1]);
+            X.replies[X.seq_num] = [
+                function(buf, opt) {
+                    var res = buf.unpack('SS');                 
+                    return res;
+                },
+                cb
+            ];
+            X.pack_stream.flush();
+        }
+
+        ext.Mask = function( op, kind, window, x, y, bitmap )
+        {
+            X.seq_num++;
+            captureStack();
+            X.pack_stream.pack('CCSCCxxLssL', [ext.majorOpcode, 2, 5, op, kind, x, y, bitmap]);
+            X.pack_stream.flush();
+        }
+
+        ext.SelectInput = function( window, enable )
+        {
+            X.seq_num++;
+            captureStack();
+            X.pack_stream.pack('CCSLCxxx', [ext.majorOpcode, 6, 3, window, enable ]);
+            X.pack_stream.flush();
+        }
+
+        ext.InputSelected = function( window, cb )
+        {
+            X.seq_num++;
+            captureStack();
+            X.pack_stream.pack('CCSL', [ext.majorOpcode, 7, 2, window ]);
+            X.replies[X.seq_num] = [
+                function(buf, opt) {
+                    return opt;
+                },
+                cb
+            ];
+            X.pack_stream.flush();
+        }
+
+        callback(ext);
+   
+        /*
+        ext.QueryVersion(function(err, version) {
+            ext.major = version[0];
+            ext.minor = version[1];
+            callback(ext);
+        });
+        */
+    });
+}

test/shapetest.js

@@ -0,0 +1,27 @@
+var x11 = require('../lib/x11');
+
+x11.createClient(function(display) {
+    var X = display.client;
+    var root = display.screen[0].root;
+    X.require('shape', function(Shape) {
+        var win = X.AllocID();
+        X.CreateWindow(win, root, 0, 0, 200, 200);
+        var gc = X.AllocID();
+        X.CreateGC(gc, win);     
+        //X.MapWindow(win);
+        Shape.SelectInput(win, 1);
+        Shape.InputSelected(win, function(err, isSelected) {
+            console.log("IsSelected: " + isSelected);
+        });
+        //var pid = X.AllocID();
+        //X.CreatePixmap(pid, win, 2, 200, 200);
+        //X.PolyText8(pid, gc, 0, 0, ['Hello, Node.JS!', ' Hello, world!']);
+        //Shape.Mask(Shape.Op.Set, Shape.Kind.Input, win, 0, 0, pid);
+
+        X.on('event', function(ev) {
+          console.log(ev);
+        });
+    });
+    X.on('error', function(err) { console.log(err); });
+ 
+});