Getting the selected value from a DateRangeFilter

[GoogleCodeExporter]

Hi
I'm trying to retrieve the (low and high) values selected by an end user 
through the use of a DateRangeFilter.

I have written something like :

DateRangeFilter filter = new DateRangeFilter();
filter.addStateChangeHandler(new StateChangeHandler()
{
    @Override
    public void onStateChange(StateChangeEvent event)
    {
System.out.println("onStateChange >" + 
processFlawDRFilter.getObject().getState().getHighValue());
    }

But it does not work. I see nothing on my console.

Do you know if there is a way to access to such values ?

thank a lot for your help

Original issue reported on code.google.com by ooooh.g...@gmail.com on 3 Mar 2015 at 5:41

[GoogleCodeExporter]

Try this:

DateRangeFilter filter = new DateRangeFilter();
filter.addStateChangeHandler(new StateChangeHandler()
{
    @Override
    public void onStateChange(StateChangeEvent event)
    {
        GWT.log("onStateChange >" + ((DateRangeFilterState)filter.getState()).getHighValue());
    }
}

Also check the showcase example on DateRangeFilter: 
http://gwt-charts.appspot.com/#daterangefilter

Please give me feedback.
Thank you!

Original comment by rglafo...@gmail.com on 3 Mar 2015 at 7:21

• Changed state: Accepted
• Added labels: Type-Other
• Removed labels: Type-Defect

[GoogleCodeExporter]

In fact, I have based my work on the daterangefilter on your showcase ;-)

I didn't get any problem (the filtering on the chart side is happening very 
well) excepted I can't get now the selected values from the DateRangeFilter.

I have tried also the casting option you are proposing above. It does not work 
neither.
FYI, it also blocks the filtering in the sense that the bound chart does not 
change neither.

Original comment by ooooh.g...@gmail.com on 3 Mar 2015 at 7:38

[GoogleCodeExporter]

I've tested this exact code on the showcase and it worked perfectly.
I can see the output on the browser console.

Just to check, in your snippet you have two different filters: 'filter' and 
'processFlawDRFilter'. Is that a typo?

Original comment by rglafo...@gmail.com on 3 Mar 2015 at 7:44

[GoogleCodeExporter]

In fact this is not a typo in my code, I have badly paste it :
        processFlawDRFilter = new DateRangeFilter();
        processFlawDRFilter.addStateChangeHandler(new StateChangeHandler()
        {
            @Override
            public void onStateChange(StateChangeEvent event)
            {
                GWT.log("onStateChange >" + ((DateRangeFilterState)processFlawDRFilter.getState()).getHighValue());


I'm going to copy/paste your showcase code and try a bisect.

I will do that on tomorrow (it is a bit late for me now).
I will keep you informed. Thank a lot for your help and reactivity !

Original comment by ooooh.g...@gmail.com on 3 Mar 2015 at 8:00

[GoogleCodeExporter]

Hi Rui

I have copied and pasted the code from 
"http://gwt-charts.appspot.com/#daterangefilter", as it is.
I have modified the method getDateRangeFilter as : 
private DateRangeFilter getDateRangeFilter() {
        if (dateRangeFilter == null) {
            dateRangeFilter = new DateRangeFilter();
            dateRangeFilter.addStateChangeHandler(new StateChangeHandler()
            {
                @Override
                public void onStateChange(StateChangeEvent event)
                {
                    GWT.log("onStateChange >" + ((DateRangeFilterState)dateRangeFilter.getState()).getHighValue());
                }
            });
        }
        return dateRangeFilter;
    }

I have made a trial with :
- GWT.log("onStateChange >" + 
dateRangeFilter.getObject().getState().getHighValue());
  -> it does not work
- GWT.log("onStateChange >" + dateRangeFilter.getObject().getState());
  -> it works (output = "[INFO] [flower] - onStateChange >[object Object]")
- GWT.log("onStateChange >" + dateRangeFilter.getObject().getContainerId());
  -> it works (output = [INFO] [flower] - onStateChange >gwt-uid-4");

I'm in Dev Mode and run the app on IE 10 (v 10.0.23).

Tell me if I can do more test for helping you to investigate.

thank a lot for your help

JM

Original comment by ooooh.g...@gmail.com on 4 Mar 2015 at 8:17

[GoogleCodeExporter]

and obviously the call to GWT.log("onStateChange >" + 
((DateRangeFilterState)dateRangeFilter.getState()).getHighValue());
does not work.

Original comment by ooooh.g...@gmail.com on 4 Mar 2015 at 8:18

[GoogleCodeExporter]

I have made an other modification to your code by adding a button :
Button b = new Button();
b.setText("test");
b.addClickHandler(new ClickHandler()
{
    @Override
    public void onClick(ClickEvent arg0)
    {
    GWT.log("onStateChange >" + ((DateRangeFilterState)dateRangeFilter.getState()).getHighValue());
    }
});
panel.addSouth(b, 30);

An error message is generated as soon as the button is used :

com.google.gwt.event.shared.UmbrellaException: Exception caught: Something 
other than a double was returned from JSNI method 
'@com.googlecode.gwt.charts.client.controls.filter.DateRangeFilterState::getHigh
Value()': JS value of type JavaScript object(799), expected double
    at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:129)
    at com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:129)
...

Caused by: com.google.gwt.dev.shell.HostedModeException: Something other than a 
double was returned from JSNI method 
'@com.googlecode.gwt.charts.client.controls.filter.DateRangeFilterState::getHigh
Value()': JS value of type JavaScript object(799), expected double
    at com.google.gwt.dev.shell.JsValueGlue.get(JsValueGlue.java:112)
...

Original comment by ooooh.g...@gmail.com on 4 Mar 2015 at 11:08

[GoogleCodeExporter]

I use GWT 2.6.1 and Java 7

Original comment by ooooh.g...@gmail.com on 4 Mar 2015 at 11:14