Re: isis-wicket-gmap3

[Dan Haywood <da...@haywood-associates.co.uk>]

Hi Michal,

(I'm cc'ing the Isis users list, since this might be of interest more
generally).



On 16 February 2014 16:13, Michal Vaško <mi...@gmail.com> wrote:

>
> Yes I read LocationLookupService.java<https://github.com/danhaywood/isis-wicket-gmap3/blob/master/service/src/main/java/com/danhaywood/isis/wicket/gmap3/service/LocationLookupService.java> class
> but if I understood well this class have one input text and return one
> output long and latit.
>
> I need UI component where If I start write for example "Ko" component
> autocomplete Kos - Grece, Kooskia - US . Kosice - Slovakia ....  and more
> ...
>
> After when user select one item on this component is it possible to use
> your location service. Your api have similar component like
> google.maps.places.Autocomplete ui component? or google map only ?
>


I think that what you want *could* be achieved using an "Address" view
model, an autoComplete lookup and an extension to LocationLookupService to
call the appropriate API.   However, reading the docs for the geocoding
service [1] (that LocationLookupService calls), they say that the service
is only intended for server-side lookup, not for UI widgets.  For that,
they point over to a Javascript component [2].

Integrating a new Javascript component into Wicket viewer is certainly
doable, but would take more work, I think.  If you want to try developing
it, I'll give you some hints.

But, if you do want to (ab)use the existing server-side geocoding service
(beware of quotas), then you could use the following code:


*Address (just a simple wrapper around a string):*

import org.apache.isis.applib.AbstractViewModel;
import org.apache.isis.applib.annotation.AutoComplete;
import org.apache.isis.applib.annotation.Title;

@AutoComplete(repository=Addresses.class)
public class Address extends AbstractViewModel {

    @Override
    public String viewModelMemento() {
        return addresses.mementoFor(getDescription());
    }

    @Override
    public void viewModelInit(String memento) {
        setDescription(addresses.descriptionFrom(memento));
    }

    // //////////////////////////////////////


    private String description;
    @Title
    public String getDescription() {
        return description;
    }
    public void setDescription(String address) {
        this.description = address;
    }

    // //////////////////////////////////////


    @javax.inject.Inject
    private Addresses addresses;
}




*Addresses:*


import java.util.List;

import com.google.common.base.Function;
import com.google.common.collect.Lists;

import org.apache.isis.applib.DomainObjectContainer;
import org.apache.isis.applib.services.memento.MementoService;

public class Addresses {

    public List<Address> autoComplete(String address) {
        // TODO: hit a new method in the LocationLookupService that hits
the relevant API of the geocoding service here, to retrieve an array of
address descriptions...
        final List<String> addressDescriptions = ...;

        // wrap each in an Address view model
        return Lists.transform(addressDescriptions, new Function<String,
Address>() {

            @Override
            public Address apply(String desc) {
                return newAddress(desc);
            }

        });
    }

    private Address newAddress(String description) {
        return container.newViewModelInstance(Address.class,
mementoFor(description));
    }

    // //////////////////////////////////////

    String mementoFor(String description) {
        return mementoService.create().set("description",
description).asString();
    }
    String descriptionFrom(String memento) {
        return mementoService.parse(memento).get("description",
String.class);
    }

    // //////////////////////////////////////

    @javax.inject.Inject
    private DomainObjectContainer container;

    @javax.inject.Inject
    private MementoService mementoService;

}


*Usage:*

    public ToDoItem updateLocation(@Named("Address") final Address address)
{
        final Location location =
this.locationLookupService.lookup(address.getDescription());
        setLocation(location);
        return this;
    }


HTH
Dan



[1] https://developers.google.com/maps/documentation/geocoding/
[2] https://developers.google.com/maps/documentation/javascript/geocoding




> Many thanks !
>
>
>
> 2014-02-16 17:05 GMT+01:00 Michal Vaško <mi...@gmail.com>:
>
>
>>
>> 2014-02-16 16:57 GMT+01:00 Dan Haywood <da...@haywood-associates.co.uk>:
>>
>>
>>>
>>>
>>> On 15 February 2014 20:59, Michal Vaško <mi...@gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> Hi Michal, welcome to the mailing list
>>>
>>>
>>>
>>>> I start created wicket application
>>>>
>>>
>>>
>>> ... good to hear....
>>>
>>>
>>>
>>>> and now a need something like google.maps.places.Autocomplete, I need
>>>> select some city. Is it suport in your wicket api?
>>>>
>>>
>>> I presume you are using the gmap3 extension [1] ?   As well as providing
>>> the UI extension to the Wicket viewer, it also has a LocationLookupService
>>> [2] which does a search based upon a freetext description... perhaps this
>>> is what you are after?
>>>
>>> Cheers
>>> Dan
>>>
>>> [1] https://github.com/danhaywood/isis-wicket-gmap3
>>> [2]
>>> https://github.com/danhaywood/isis-wicket-gmap3/blob/master/service/src/main/java/com/danhaywood/isis/wicket/gmap3/service/LocationLookupService.java
>>>
>>>
>>>
>>>>  Many thanks.
>>>>
>>>
>>>
>>>
>>>> --
>>>> S pozdravom Michal Vasko
>>>>
>>>
>>>
>>
>>
>> --
>> S pozdravom Michal Vasko
>>
>
>
>
> --
> S pozdravom Michal Vasko
>