CODEWITHSUNDEEP
javagwtmenuitem
vicR
vicR

Reputation: 819

GWT MenuItem-List selected value

I have a bit of a problem. Like in the code I'm trying to create a dynamic MenuItem List. Which is no problem, but I want to have the item which is selected/clicked. But I'm not sure how to correctly implement that. all of this is happening in my View and i want to set the value to continue in the Presenter. thx for any help. 

chooseProfileMenuBar = new MenuBar(true);
for (int i = 0; i<names().size(); i++) {

  final MenuItem menuItemChoose = new MenuItem(names.get(i), new Command(){

    @Override           
        public void execute() {

      // TODO set the onClicked value/name at index i               

    }
  });
  chooseProfileMenuBar.addItem(menuItemChoose);
}
return chooseProfileMenuBar;

Upvotes: 2

Views: 713

Answers (3)

Suresh Atta
Suresh Atta

Reputation: 122008

Use the benefits of UIHandler Concept to Communicate between the view and presenter.

Create an interface:

import com.gwtplatform.mvp.client.UiHandlers;

public interface MyUiHandler extends UiHandlers {
    void onMenuSelected(MenuItem menuitem);

}

Then in your view 

public class MyMVPView extends ViewWithUiHandlers<MyUiHandler> implements
        MyMvPPresenter.MyView {
.
.
.
.

And implement that uihandler interface with Presenter 

public class MyMvPPresenter
        extends
        Presenter<MyMVPPresenter.MyView, MyMVPPresenter.MyProxy>
        implements MyUiHandler {


//in the same presenter 
public interface MyView extends View, HasUiHandlers<UserDashboardUiHandler> {
    //  

.
.
.

Then you will get the override method in presenter like 

@Override
    public voidonMenuSelected(MenuItem menuitem) {
         //Your implementation here
    }

Usage

@Override           
        public void execute() {

        getUiHandlers().showReportPanel(menuItemChoose );              

    }

Upvotes: 1

Vikash Rajpurohit
Vikash Rajpurohit

Reputation: 1565

you can do one more thing if possible, i have download menu that creates runtime so i have add HashMap and in that HashMap added names.get(i) and download link so it looks like 

map.put(names.get(i),"link"),

now in execute(), i added Window.open(map.get(menuItem.gettext()),"_blank");

one more menu i have in my project that is report menu so from database report list is coming and 

for(final Temp report : listReports){
    MenuItem menuItem = new MenuItem(report.getType().toString(), new Command() {
        @Override
                public void execute() {
                    getUiHandlers().showReportPanel(report);
                }
            });
        reportMenuBar.addItem(menuItem);
 }

Upvotes: 2

Vikash Rajpurohit
Vikash Rajpurohit

Reputation: 1565

you are right vicR, it correct to get the value from the menuItemChoose. you can do like

public void execute() {
    onclickMenu(menuItemChoose);
}

void onclickMenu(MenuItem menuItemChoose){
    if(menuItemChoose.gettext().equals("abc"){
         //call handler method that implemented you in presenter
    }
}

Upvotes: 0

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