Web UI plugin loader

https://fedorahosted.org/freeipa/ticket/3235

install/ui/Makefile.am

@@ -4,7 +4,6 @@ NULL =
 
 SUBDIRS =  				\
 	build				\
-	ext				\
 	images				\
 	src				\
 	$(NULL)

install/ui/ext/Makefile.am

@@ -1,14 +0,0 @@
-NULL =
-
-appdir = $(IPA_DATA_DIR)/ui/ext
-app_DATA =				\
-	extension.js 			\
-	$(NULL)
-
-EXTRA_DIST =                            \
-        $(app_DATA)                     \
-        $(NULL)
-
-MAINTAINERCLEANFILES =                  \
-        *~                              \
-        Makefile.in

install/ui/js/plugins

@@ -0,0 +1 @@
+../src/plugins/

install/ui/src/freeipa/app.js

@@ -25,6 +25,8 @@ define([
     //core
     'dojo/_base/lang',
     'dojo/Deferred',
+    'dojo/when',
+    './plugin_loader',
     './phases',
     './Application_controller',
     'exports', // for circullar deps
@@ -52,7 +54,7 @@ define([
     './trust',
     './user',
     'dojo/domReady!'
-],function(lang, Deferred, phases, Application_controller, exports) {
+],function(lang, Deferred, when, plugin_loader, phases, Application_controller, exports) {
 
     var app = {
 
@@ -102,10 +104,12 @@ define([
             }));
         },
 
-       run: function() {
-           this.register_phases();
-           phases.controller.run();
-       }
+        run: function() {
+            when(plugin_loader.load_plugins(), lang.hitch(this, function() {
+                this.register_phases();
+                phases.controller.run();
+            }));
+        }
     };
 
     lang.mixin(exports, app);

install/ui/src/freeipa/plugin_loader.js

@@ -0,0 +1,82 @@
+/*  Authors:
+ *    Petr Vobornik <pvoborni@redhat.com>
+ *
+ * Copyright (C) 2013 Red Hat
+ * see file 'COPYING'./for use and warranty information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * Plugin loader
+ */
+define([
+    'dojo/_base/array',
+    'dojo/_base/lang',
+    'dojo/Deferred',
+    'dojo/promise/all'
+],function(array, lang, Deferred, all) {
+
+    var plugin_loader = {
+
+        register_plugins: function(plugins) {
+
+            var packages = [];
+
+            array.forEach(plugins, function(name) {
+                packages.push({
+                    name: name,
+                    location: 'plugins/'+name
+                });
+            });
+
+            require({ packages: packages});
+        },
+
+        load_plugin: function(name) {
+            var plugin_loaded = new Deferred();
+
+            var mid = name+'/'+name;
+
+            require([mid], function(plugin) {
+                plugin_loaded.resolve(plugin);
+            });
+
+            return plugin_loaded.promise;
+        },
+
+        load_plugins: function() {
+
+            var plugins_loaded = new Deferred();
+
+            require(['freeipa/plugins'], lang.hitch(this, function(plugins) {
+                var loading = [];
+
+                this.register_plugins(plugins);
+
+                array.forEach(plugins, lang.hitch(this, function(plugin) {
+                    loading.push(this.load_plugin(plugin));
+                }));
+
+                all(loading).then(function(results) {
+                    plugins_loaded.resolve(results);
+                });
+            }));
+
+           return plugins_loaded.promise;
+        }
+    };
+
+    return plugin_loader;
+});

install/ui/src/freeipa/plugins.js

@@ -0,0 +1 @@
+define([],function(){return[];});