Detecting Super Dev Mode from within GWT app

Question

I guess the title says it all:

Is there some kind of flag that allows my GWT app to check whether it is currently running in Super Dev Mode (something along the lines of GWT.isProdMode(), maybe)?

Answer 1

As it was already mentioned, there is a superdevmode property that you can use.

Here is a real-life example:

1. Create a class containing a method that tells that we are not in SuperDevMode:

   public class SuperDevModeIndicator {
       public boolean isSuperDevMode() {
           return false;
       }
   }
   

2. Extend previous class and override a method to tell that we are in SuperDevMode:

   public class SuperDevModeIndicatorTrue extends SuperDevModeIndicator {
       @Override
       public boolean isSuperDevMode() {
           return true;
       }
   }
   

3. Use only one, appropriate class depending on a superdevmode property - use deferred binding - put this in your *.gwt.xml:

   <!-- deferred binding for Super Dev Mode indicator -->
   <replace-with class="com.adam.project.client.SuperDevModeIndicatorTrue">
     <when-type-is class="com.adam.project.client.SuperDevModeIndicator"/>
     <when-property-is name="superdevmode" value="on" />
   </replace-with>
   

4. Instantiate SuperDevModeIndicator class via deferred binding:

   SuperDevModeIndicator superDevModeIndicator = GWT.create(SuperDevModeIndicator.class);
   

5. Use it to check whether you are in SuperDevMode or not:

   superDevModeIndicator.isSuperDevMode();
   

Voila!

Here you will find documentation on Deferred binding.