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Re: [Gwt-openlayers-users] MapClickListener support
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From: Jon B. <jon...@go...> - 2010-11-29 14:28:57
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Hi Edwin,
You're right, I've added the proxy and now it works fine.
Thanks for the help.
Jon
On 29 November 2010 10:56, Edwin Commandeur <com...@gm...>wrote:
> Hi Jon,
>
> I think the essential line is:
> Origin http://127.0.0.1:8888 is not allowed by Access-Control-Allow-Origin
>
> Are you setting the OpenLayers proxyHost to use the proxy servlet from
> GWT-OL server? The example in the showcase application should be
> working and shows how to set the proxyHost.
>
> What I don't get is that the request is sent to the server, because I
> would expect the browser to not send any cross-domain requests if
> these are not allowed from the application.
>
> Greetings,
> Edwin
>
>
> On 29 November 2010 10:54, Jon Britton <jon...@go...> wrote:
> > Sorry if I wasn't clear in my previous email, but the server is actually
> > receiving and dealing with the request. I've tried another remote server
> > and I get the same problem. I've debugged the website with Chrome, and
> it
> > just hangs when making the request - it says "pending" under Status.
> > However, the Chrome debugging console shows the following errors:
> > XMLHttpRequest cannot load
> >
> http://localhost:8080/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Atasmania_state_boundaries&QUERY_LAYERS=topp%3Atasmania_state_boundaries&STYLES=&BBOX=140.328735%2C-44.906872%2C151.98523%2C-38.315075&FEATURE_COUNT=10&HEIGHT=600&WIDTH=1061&FORMAT=image%2Fpng&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=592&Y=322
> .
> > Origin http://127.0.0.1:8888 is not allowed by
> Access-Control-Allow-Origin.
> >
> > Uncaught java.lang.IllegalArgumentException: Something other than a Java
> > object was returned from JSNI method
> >
> '@org.gwtopenmaps.openlayers.client.util.JSObjectHelper::getProperty(Lorg/gwtopenmaps/openlayers/client/util/JSObject;Ljava/lang/String;)':
> > JS value of type int, expected java.lang.Object
> >
> > wmsFailed to load resource
> > Following the link loads the correct result.
> > Jon
> > On 29 November 2010 08:42, Lukas Johansson <luk...@de...>
> > wrote:
> >>
> >> Have you checked with firebug if any request are actually sent? Probably
> >> they aren’t as you get a JS error and you don’t see anything in the log
> at
> >> the server.
> >>
> >> By just “dry reading” your code I don’t see anything that pops out.
> >>
> >> You do get a “String cannot be cast to JSObject” exception and the only
> >> row I can guess cases this is:
> >>
> >> options.setLayers(getWMSMapLayers().toArray(new WMS[0]));
> >>
> >>
> >>
> >> What does getWMSMapLayers() return? Which toArray method is called?....
> >>
> >> /Lukas
> >>
> >>
> >>
> >>
> >>
> >> Från: man...@go...
> >> [mailto:man...@go...] För Jon Britton
> >>
> >> Skickat: den 26 november 2010 18:49
> >> Till: Lukas Johansson
> >> Kopia: gwt-openlayers-users
> >> Ämne: Re: [Gwt-openlayers-users] MapClickListener support
> >>
> >>
> >>
> >> Hi Lukas,
> >>
> >>
> >>
> >> I've added a WMSGetFeatureInfo control to my map, but when I make a
> >> request (by clicking on the map) the map freezes. I've checked by WMS
> >> server logs and it did receive a GetFeatureInfo request and seems to
> have
> >> returned a result.
> >>
> >>
> >>
> >> I was originally testing in Google Chrome, but I tried Firefox and get
> the
> >> same problem - however I also get a JavaScript exception:
> >>
> >>
> >>
> >> Uncaught JavaScript exception [uncaught exception:
> >> java.lang.ClassCastException: java.lang.String cannot be cast to
> >> org.gwtopenmaps.openlayers.client.util.JSObject] in , line 0
> >>
> >>
> >>
> >> Any idea what could be causing this? My code is shown below.
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Jon
> >>
> >>
> >>
> >> public void resetWMSSelectControl() {
> >>
> >> if (wmsSelectControl != null)
> >>
> >>
> >> SmartWPS.getSmartWPS().getMap().removeControl(wmsSelectControl);
> >>
> >> WMSGetFeatureInfoOptions options = new
> >> WMSGetFeatureInfoOptions();
> >>
> >> options.setLayers(getWMSMapLayers().toArray(new
> >> WMS[0]));
> >>
> >> options.setDrillDown(true);
> >>
> >> options.setQueryVisible(true);
> >>
> >> options.setInfoFormat("application/vnd.ogc.gml");
> >>
> >>
> >>
> >> wmsSelectControl = new WMSGetFeatureInfo(options);
> >>
> >> wmsSelectControl.addGetFeatureListener(new
> >> GetFeatureInfoListener() {
> >>
> >>
> >>
> >> @Override
> >>
> >> public void
> onGetFeatureInfo(
> >>
> >>
> >>
> >>
> org.gwtopenmaps.openlayers.client.event.GetFeatureInfoListener.GetFeatureInfoEvent
> >> eventObject) {
> >>
> >>
> >> VectorFeature[] features = eventObject.getFeatures();
> >>
> >>
> >> System.out.println("FeatureInfo: " + eventObject.getText());
> >>
> >> }
> >>
> >> });
> >>
> >>
> >>
> >>
> >> SmartWPS.getSmartWPS().getMap().addControl(wmsSelectControl);
> >>
> >> wmsSelectControl.activate();
> >>
> >> }
> >>
> >>
> >>
> >> On 24 November 2010 16:01, Lukas Johansson <luk...@de...>
> >> wrote:
> >>
> >> I’ve commited a version that make the control a more complete and which
> >> uses the drilldown parameter introduced in OL 2.9[1] which can be used
> to
> >> access multiple servers.
> >>
> >> In october we realized that my patch hadn’t been commited so this was
> >> taken care of, however I do not think that its in the current stable
> build.
> >> Instead you need to checkout your own version.
> >>
> >>
> >>
> >> [1]
> >>
> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
> >>
> >>
> >>
> >> You add the controller to the map, if you do not use drilldown only to
> top
> >> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and
> not
> >> on the control itself.
> >>
> >>
> >>
> >> Usage is something along this path (copied from our working code, but
> you
> >> get the idea):
> >>
> >> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
> >>
> >> options.setLayers(arrayOfLayersToQuery));
> >> //allows you to tell what layers that
> should
> >> be queried
> >>
> >> options.setDrillDown(true);
> >>
> >> options.setQueryVisible(true);
> >>
> >> options.setInfoFormat("application/vnd.ogc.gml");
> >> //return result as gml
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> wmsSelectControl = new WMSGetFeatureInfo(options);
> >>
> >> wmsSelectControl.addGetFeatureListener(new
> >> GetFeatureInfoListener(){
> >>
> >> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
> >>
> >> VectorFeature[] features = eventObject.getFeatures();
> >>
> >>
> >> String html = "foo";
> >>
> >> FrameCloud popup = new FramedCloud("MapFeaturePopup",
> >> features[0].getCenterLonLat(), new Size(300, 400), html);
> >>
> >> }
> >>
> >> }
> >>
> >> map.addControl(wmsSelectControl);
> >>
> >>
> >>
> >> /Lukas
> >>
> >>
> >>
> >> Från: man...@go...
> >> [mailto:man...@go...] För Jon Britton
> >> Skickat: den 24 november 2010 16:42
> >> Till: Lukas Johansson
> >> Kopia: gwt-openlayers-users
> >> Ämne: Re: [Gwt-openlayers-users] MapClickListener support
> >>
> >>
> >>
> >> Hi Lukas,
> >>
> >>
> >>
> >> You haven't misunderstood, I wasn't aware there was a map control for
> >> this. My client application is for displaying many WMS layers, possibly
> >> from different servers. The user can add/remove WMS layers as they see
> fit
> >> by using their own WMS URLs. What I want to do is display the feature
> info
> >> for every layer currently visible on my map, but I'm struggling to
> figure
> >> out how WMSGetFeatureInfo can be used for this as each control
> corresponds
> >> to only one WMS URL. Would I need to make a new control for each map
> layer?
> >>
> >>
> >>
> >> Another problem is that the GWT-Openlayers WMGetFeatureInfo control
> seems
> >> to be incomplete as I can't access many of it's properties directly
> (such as
> >> url, title, layers...).
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Jon
> >>
> >>
> >>
> >> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
> >> wrote:
> >>
> >> You want the x/y of the mouseclick in order to construct a
> >> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control
> to
> >> begin with? This will handle the events, the request to the server and
> you
> >> can get it to produce a parsable result in GML from witch you can create
> >> features.
> >>
> >>
> >>
> >> Or have I misunderstood your usecase?
> >>
> >> /Lukas
> >>
> >>
> >>
> >>
> >>
> >> Från: Jon Britton [mailto:jon...@go...]
> >> Skickat: den 24 november 2010 15:20
> >> Till: gwt-openlayers-users
> >> Ämne: [Gwt-openlayers-users] MapClickListener support
> >>
> >>
> >>
> >> Hi
> >>
> >>
> >>
> >> I'm trying to register a MapClickListener so that I can generate a
> >> GetFeatureInfo request using the mouse x and y coordinates. Here is
> what
> >> I've got so far:
> >>
> >>
> >>
> >> mw.getMap().getListeners().add(new MapClickListener() {
> >>
> >> @Override
> >>
> >> public void onClick(MapClickEvent e) {
> >>
> >> SC.say("Map click at " + e.getLonLat());
> >>
> >> }
> >>
> >> });
> >>
> >>
> >>
> >> However, getListeners() isn't supported as far as I can tell (I get an
> >> UnsupportedOperationException on the first line above). Are there any
> plans
> >> to implement this soon? Alternatively, is there any other way to access
> the
> >> map coordinates of the mouse cursor?
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Jon
> >>
> >>
> >>
> ------------------------------------------------------------------------------
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> >> _______________________________________________
> >> Gwt-openlayers-users mailing list
> >> Gwt...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >>
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> >> Tap into the largest installed PC base & get more eyes on your game by
> >> optimizing for Intel(R) Graphics Technology. Get started today with the
> >> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >> http://p.sf.net/sfu/intelisp-dev2dev
> >> _______________________________________________
> >> Gwt-openlayers-users mailing list
> >> Gwt...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >>
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> >> Tap into the largest installed PC base & get more eyes on your game by
> >> optimizing for Intel(R) Graphics Technology. Get started today with the
> >> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >> http://p.sf.net/sfu/intelisp-dev2dev
> >> _______________________________________________
> >> Gwt-openlayers-users mailing list
> >> Gwt...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >>
> >
> >
> >
> ------------------------------------------------------------------------------
> > Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> > Tap into the largest installed PC base & get more eyes on your game by
> > optimizing for Intel(R) Graphics Technology. Get started today with the
> > Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> > http://p.sf.net/sfu/intelisp-dev2dev
> > _______________________________________________
> > Gwt-openlayers-users mailing list
> > Gwt...@li...
> > https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >
> >
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
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