Celltable onBrowserEvent is not getting called

Question

I have written below code in a celltable constructor

 public ViewSubscriptionsCellTable(CellTableResource resource, final WidgetListener clickListener) {
        super(15, resource);
        this.resource = resource;
        setStyleName(CSS.LISTDATATABLE);
        setPageStart(0);
        expandedRows = new HashSet<String>();
        selectionModel = new SingleSelectionModel<ViewSubscriptionsWrapper>();
        setSelectionModel(selectionModel);
        selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler(){
            @Override
            public void onSelectionChange(SelectionChangeEvent event) {
                Window.alert("clicked");
            }
        });
        List<ViewSubscriptionsWrapper> viewSubscriptionsWrapperList = new ArrayList<ViewSubscriptionsWrapper>(); 
        setTableBuilder(new CustomTableBuilder());
        createColumns(clickListener);
        listDataProvider = new ListDataProvider<ViewSubscriptionsWrapper>(new ArrayList<ViewSubscriptionsWrapper>());
        listDataProvider.addDataDisplay(ViewSubscriptionsCellTable.this);
        createSortHandler();
        pager = new PagerWidget(TextLocation.CENTER);
        pager.setStyleName(CSS.WIDGET_TEXT_FONT);
        pager.setDisplay(ViewSubscriptionsCellTable.this);
        this.setColumnWidth(radioColumn, 5.0, Unit.PCT);
        this.setColumnWidth(msisdnColumn, 5.0, Unit.PCT);
        this.setColumnWidth(subscriptionColumn, 10.0, Unit.PCT);
        this.setColumnWidth(simTypeColumn, 10.0, Unit.PCT);
        this.setColumnWidth(simNumberColumn, 70.0, Unit.PCT);
    }

The below method is called when a custom radio cell is selected

@Override
public void onBrowserEvent(Context context, Element elem, ViewSubscriptionsWrapper object, NativeEvent event) {
super.onBrowserEvent(context, elem, object, event);
clickListener.onWidgetEvent(new WidgetEvent(object, context.getIndex()));

}

After removing Window.alert it does not work anymore and the onBrowserEvent of cell is not getting called. I tried removing addSelectionChangeHandler and still the problem is there.

Note: The above idea works without this addSelectionChangeHandler, if you move between the rows using keys and then press enter. I wanted instead that it should work with click only and no keyboard pressing.

bNd · Answer 1 · 2013-05-15T13:21:32.260

0

Because onBrowserEvent is Fired whenever a browser event is received.. when Window.alert method called then alert display focus goes to the alert window, the parent window generates unload event.so due to this event onBrowserEvent fired.

edited May 15 '13 at 13:21

answered May 15 '13 at 13:13

bNd

7,512
7
39
72

how to fire a dummy browser event then which will help to fire the onBrowserEvent or any other solution? – sujikin May 15 '13 at 13:47
I don't understand what you tried but if radio button is for your record selection then you have to use `CheckboxCell` instead of radio and use `createCheckboxManager`. Other wise fire Dom event just example http://stackoverflow.com/questions/16542266/handler-on-dom-elements-in-gwt/16542675#16542675 – bNd May 15 '13 at 14:06
Radio button is used because only one record can be selected at a time. Let me check that link. – sujikin May 15 '13 at 14:19
And also refer this link http://thoughtsofthree.com/2011/02/creating-a-gwt-radiobuttoncell/ – bNd May 15 '13 at 14:49
I have used that idea only. Just that it needs to be updated for GWT 2.5. The method signatures have changed in the latest release. – sujikin May 15 '13 at 14:54

score 0 · Accepted Answer · answered May 16 '13 at 05:53

I removed the addSelectionChangeHandler and added the below and it worked

this.addCellPreviewHandler(new Handler<ViewSubscriptionsWrapper>() {
          @Override
          public void onCellPreview(CellPreviewEvent<ViewSubscriptionsWrapper> event) {
              ViewSubscriptionsWrapper sample = event.getValue();
            if ("click".equals(event.getNativeEvent().getType())) {
                clickListener.onWidgetEvent(new WidgetEvent(sample, event.getIndex()));
            }
          }
        });

Celltable onBrowserEvent is not getting called

2 Answers2