Make charms able to be dragged to the environment.

app/app.js

 /*
 This file is part of the Juju GUI, which lets users view and manage Juju
 environments within a graphical interface (https://launchpad.net/juju-gui).
 Copyright (C) 2012-2013 Canonical Ltd.
 
 This program is free software: you can redistribute it and/or modify it under
 the terms of the GNU Affero General Public License version 3, as published by
 the Free Software Foundation.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
@@ skipping 575 matching lines @@
         // Watch specific things, (add units), remove db.update above
         // Note: This hides under tha flag as tests don't properly clean
         // up sometimes and this binding creates spooky interaction
         // at a distance and strange failures.
         this.db.services.after(['add', 'remove', '*:change'],
                                this.on_database_changed, this);
         this.db.relations.after(['add', 'remove', '*:change'],
                                 this.on_database_changed, this);
       }
       this.addSubApplications(cfg);
+
+      // When someone wants a charm to be deployed they fire initiateDeploy
+      // and we show the charm panel to configure/deploy the service.
+      Y.on('initiateDeploy', function(charm) {
+        this.deploy(charm);
+      }, this.charmPanel);
     },
 
     /**
     Start the simulator if it can start and it has not already been started.
 
     @method simulateEvents
     */
     simulateEvents: function() {
       if (!this._simulator && this.env) {
         // Try/Catch this to allow mocks in tests.
@@ skipping 785 matching lines @@
     'app-subapp-extension',
     'sub-app',
     'subapp-browser',
     'event-key',
     'event-touch',
     'model-controller',
     'FileSaver',
     'juju-inspector-widget'
   ]
 });