Allow icons to be bundled with nodes

red/nodes.js

@@ -241,8 +241,10 @@ module.exports.load = function() {
                     }
                 } else if (stats.isDirectory()) {
                     // Ignore /.dirs/ and /lib/
-                    if (!/^(\..*|lib)$/.test(fn)) {
+                    if (!/^(\..*|lib|icons)$/.test(fn)) {
                         loadNodes(dir+"/"+fn);
+                    } else if (fn === "icons") {
+                        events.emit("node-icon-dir",dir+"/"+fn);
                     }
                 }
         });

red/server.js

@@ -18,6 +18,7 @@ var fs = require('fs');
 var util = require('util');
 var createUI = require("./ui");
 var redNodes = require("./nodes");
+
 //TODO: relocated user dir
 
 var flowfile = '';
@@ -74,6 +75,7 @@ function createServer(_server,settings) {
             });
     });
 }
+
 function start() {
     console.log("\nWelcome to Node-RED\n===================\n");
     util.log("[red] Loading palette nodes");

red/ui.js

@@ -18,7 +18,17 @@ var util = require('util');
 var crypto = require('crypto');
 var fs = require("fs");
 var app = express();
+var events = require("./events");
+var path = require("path");
 
+var icon_paths = [path.resolve(__dirname + '/../public/icons')];
+
+events.on("node-icon-dir",function(dir) {
+        icon_paths.push(path.resolve(dir));
+});
+
+
+// TODO: nothing here uses settings... so does this need to be a function?
 function setupUI(settings) {
     
     // Need to ensure the url ends with a '/' so the static serving works
@@ -31,10 +41,26 @@ function setupUI(settings) {
             }
     });
     
+    app.get("/icons/:icon",function(req,res) {
+            for (var p in icon_paths) {
+                if (fs.existsSync(icon_paths[p]+'/'+req.params.icon)) {
+                    res.sendfile(icon_paths[p]+'/'+req.params.icon);
+                    return;
+                }
+            }
+            //TODO: create a default icon
+            res.sendfile(path.resolve(__dirname + '/../public/icons/arrow-in.png'));
+    });
+    
+    
     app.use("/",express.static(__dirname + '/../public'));
     
     return app;
 }
 
+
+
+
+
 module.exports = setupUI;