apply steps at the end, add ability to cancel wizard

gui/griffon-app/controllers/com/muwire/gui/wizard/WizardController.groovy

@@ -36,7 +36,17 @@ class WizardController {
     
     @ControllerAction
     void finish() {
-        
+        model.steps.each { 
+            it.apply(model.muSettings, model.i2pProps)
+        }
+        model.finished['applied'] = true
+        view.hide()
+    }
+    
+    @ControllerAction
+    void cancel() {
+        model.finished['applied'] = false
+        view.hide()
     }
     
     private void recalcButtons() {

gui/griffon-app/lifecycle/Ready.groovy

@@ -64,8 +64,15 @@ class Ready extends AbstractLifecycleHandler {
             params['embeddedRouterAvailable'] = embeddedRouterAvailable
             params['muSettings'] = props
             params['i2pProps'] = i2pProps
+            def finished = [:]
+            params['finished'] = finished
             
             application.mvcGroupManager.createMVCGroup("wizard", params)
+            
+            if (!finished['applied']) {
+                JOptionPane.showMessageDialog(parent, "MuWire will now exit")
+                System.exit(0)
+            }
                         
             
 //            props.incompleteLocation = new File(home, "incompletes")

gui/griffon-app/models/com/muwire/gui/wizard/WizardModel.groovy

@@ -14,6 +14,7 @@ class WizardModel {
     boolean embeddedRouterAvailable
     MuWireSettings muSettings
     Properties i2pProps
+    def finished
     
     final List<WizardStep> steps = [new NicknameStep(),
                                     new DirectoriesStep()]

gui/griffon-app/views/com/muwire/gui/wizard/WizardView.groovy

@@ -35,9 +35,15 @@ class WizardView {
                 }
             }   
             panel (constraints : BorderLayout.SOUTH) {
-                button(text : "Previous", enabled : bind {model.previousButtonEnabled}, previousAction)
-                button(text : "Next", enabled : bind {model.nextButtonEnabled}, nextAction)
-                button(text : "Finish", enabled : bind {model.finishButtonEnabled}, finishAction)
+                gridLayout(rows:1, cols:2)
+                panel {
+                    button(text : "Cancel", cancelAction)
+                }
+                panel {
+                    button(text : "Previous", enabled : bind {model.previousButtonEnabled}, previousAction)
+                    button(text : "Next", enabled : bind {model.nextButtonEnabled}, nextAction)
+                    button(text : "Finish", enabled : bind {model.finishButtonEnabled}, finishAction)
+                }
             } 
         }
     }
@@ -60,4 +66,9 @@ class WizardView {
         })
         dialog.show()
     }
+    
+    void hide() {
+        dialog.setVisible(false)
+        mvcGroup.destroy()
+    }
 }