Friday, October 25, 2013

Re: How to retrieve the Current Presenter in GWT or GWTP?

I found the answers, very simple.

1st, when opening a new link we can add a param like whichLink. Ex;whichLink=link1

Then in HeaderPresenter, when calling GuideDialog, we do this

GuideDialogBox gDialogBox=new GuideDialogBox(placeManager.getCurrentPlaceRequest().getParameter("whichLink", "home"));

On Friday, October 25, 2013 11:15:39 PM UTC+11, Tom wrote:

Here is my problem. I have many links in my header presenter.

Link1 - Link2 - Link3 - GuideDialogLink  

When user clicks on Link1 or Link2 or Link3, it will open a new browser.

However, when user clicks on GuideDialogLink, then it will popup a DialogBox right on top of the current link.

The GuideDialog is designed in a way that it show different Gui depending on which link user is staying. Its code is like this:

 class GuideDialog extends DialogBox{      public GuideDialog(int whichLink){         if(whichLink==0){             //show Gui 1          }         else if(whichLink==2){             //show Gui 2          }         else if(whichLink==3){             //show Gui 3          }      }   }  

Ex, when user is staying in Link3 & if they click GuideDialogLink, it will show a DialogBox that has Gui3 which is different from Gui1 or Gui2 if user is staying on Link1 or Link2.

So, my question is:

Is there any way to retrieve the Current Presenter?

If we know which Presenter is current one, then we can call GuideDialog accordingly ex: GuideDialog myGD=new GuideDialog(0);

-Other solution is to store a public static int currentLink in Utility class. And when user clicks link1 or link2 or link3 we can use EventBus to set public static currentLink to set accordingly & eventually GuideDialog myGD=new GuideDialog(Utility.currentLink);.

But i don't think this solution is elegant since Google must have some function to let us know which current page we are in.

So how can i solve my problem elegantly?

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