package com.google.gwt.query.client.plugins.ajax;
import com.google.gwt.core.client.Callback;
import com.google.gwt.core.client.ScriptInjector;
import com.google.gwt.dom.client.ScriptElement;
import com.google.gwt.query.client.Function;
import com.google.gwt.query.client.GQuery;
import com.google.gwt.query.client.Promise;
import com.google.gwt.query.client.plugins.ajax.Ajax.AjaxTransport;
import com.google.gwt.query.client.plugins.ajax.Ajax.Settings;
import com.google.gwt.query.client.plugins.deferred.PromiseFunction;
import com.google.gwt.query.client.plugins.deferred.PromiseReqBuilder;
import com.google.gwt.query.client.plugins.deferred.PromiseReqBuilderJSONP;
/**
* Ajax transport for Client side.
*/
public class AjaxTransportJs implements AjaxTransport {
@Override
public Promise getJsonP(Settings settings) {
return new PromiseReqBuilderJSONP(settings.getUrl(), settings.getTimeout());
}
@Override
public Promise getLoadScript(final Settings settings) {
return new PromiseFunction() {
private ScriptElement scriptElement;
public void f(final Deferred dfd) {
scriptElement = ScriptInjector.fromUrl(settings.getUrl()).setWindow(GQuery.window)
.setCallback(new Callback<Void, Exception>() {
public void onSuccess(Void result) {
GQuery.$(GQuery.window).delay(0, new Function(){
public void f() {
dfd.resolve(scriptElement);
}
});
}
public void onFailure(Exception reason) {
dfd.reject(reason);
}
}).inject().cast();
}
};
}
public Promise getXhr(Settings settings) {
return new PromiseReqBuilder(settings);
}
}