allow to double-click on project type step (IDEADEV-40685)

java/idea-ui/src/com/intellij/ide/util/newProjectWizard/AddModuleWizard.java

@@ -72,6 +72,10 @@ public class AddModuleWizard extends AbstractWizard<ModuleWizardStep> {
       public void buttonsUpdateRequested() {
         updateButtons();
       }
+
+      public void nextStepRequested() {
+        doNextAction();
+      }
     });
 
     myRootStep = new ProjectCreateModeStep(defaultPath, myWizardContext){

java/idea-ui/src/com/intellij/ide/util/newProjectWizard/ProjectNameWithTypeStep.java

@@ -124,8 +124,8 @@ public class ProjectNameWithTypeStep extends ProjectNameStep {
     myTypesList.setSelectedIndex(0);
     myTypesList.addMouseListener(new MouseAdapter() {
       public void mouseClicked(MouseEvent e) {
-        if (e.getClickCount() == 2) {
-          //todo
+        if (e.getClickCount() == 2 && e.getButton() == MouseEvent.BUTTON1) {
+          myWizardContext.requestNextStep();
         }
       }
     });

platform/lang-api/src/com/intellij/ide/util/projectWizard/WizardContext.java

@@ -48,8 +48,9 @@ public class WizardContext {
     myProjectStorageFormat = format;
   }
 
-  public static interface Listener {
+  public interface Listener {
     void buttonsUpdateRequested();
+    void nextStepRequested();
   }
 
   public WizardContext(Project project) {
@@ -110,6 +111,13 @@ public class WizardContext {
     }
   }
 
+  public void requestNextStep() {
+    final Listener[] listeners = myListeners.toArray(new Listener[myListeners.size()]);
+    for (Listener listener : listeners) {
+      listener.nextStepRequested();
+    }
+  }
+
   public void addContextListener(Listener listener) {
     myListeners.add(listener);
   }