Thanks Paul,
I was about to start releasing similar code
<https://github.com/hrstoyanov/gwt-functions/tree/master/src/main/java/org/gwtproject/functions/client>
.
It does not make sense to do the same thing twice and obviously such
utility code is necessary. So, I will use your project as it seems a bit
more advanced and start contributing!
Quick request before I adopt it in my libraries today:
- Can you add functional interfaces with 4 and 5 arguments. I think you
have them up to 3 only, but I do face JS libraries with 4 and 5.
- Do you have similar utils as the one below? If not, would it be possible
to incorporate something like it in your projects?
/**
* JavaScript global variables and functions utils.
*
*/
//@JsType(isNative = true, namespace = JsPackage.GLOBAL)
public abstract class VariablesAndFunctions {
public native static <T> T eval(String expresion);
// @JsOverlay
// public boolean isJSVariableDefined(String jsVariableName) {
// return Boolean.TRUE.equals(eval("!!window[" + jsVariableName +
"]"));
// }
//
// @JsOverlay
// public static <T> T getJSVariableValue(String jsVariableName) {
// return eval("!!window[" + jsVariableName + "]");
// }
public static native String getStringJSVariable(String jsVar) /*-{
return $wnd[jsVar].toString();
}-*/;
public static native Object getJSVariable(String jsVar) /*-{
return $wnd[jsVar];
}-*/;
public static native boolean isVariableDefined(String jsVar)/*-{
return !!$wnd[jsVar];
}-*/;
public static native boolean isFunctionDefined(String functionName)/*-{
return typeof functionName == 'function';
}-*/;
}
On Thursday, June 2, 2016 at 11:57:46 AM UTC-7, Paul Stockley wrote:
>
> I have committed an initial version of gwt-interop-utils.
>
> https://github.com/GWTReact/gwt-interop-utils
>
> This library provides some common utilities for working with JsInterop e.g.
>
> 1) Object Literal support
> 2) Shared JSON compatible structures
> 3) Common functional interfaces
> 4) JSON utilities
> 5) Low level Javascript utilities.
>
> One of my major goals was to enable creating complex object literals with
> arrays and maps that could be represented by a single class, accessible
> both on the client and server. You can now define a class such as
>
> import gwt.interop.utils.shared.collections.Array;
> import gwt.interop.utils.shared.collections.StringMap;
> import gwt.interop.utils.shared.valuetypes.NumberValue;
>
> @JsType(isNative = true, namespace = JsPackage.GLOBAL, name = "Object")
> public class CommonDataObject {
> public int intVal;
> public double doubleVal;
> public boolean booleanVal;
> public String stringVal;
> public NumberValue numberVal;
> public Array<String> anArray;
> public StringMap<String> aMap;
> public CommonDataObject2 embeddedObj;
>
> @JsOverlay
> public static CommonDataObject create() {
> CommonDataObject o = new CommonDataObject();
> o.intVal = 10;
> o.doubleVal = 20.20;
> o.booleanVal = true;
> o.stringVal = "A String Value";
> o.numberVal = NumberValue.from(10);
> o.anArray = Array.create();
>
> o.anArray.set(0, "ArrayValue1");
> o.anArray.set(2, "ArrayValue2");
> o.anArray.set(2, "ArrayValue3");
>
> o.aMap = StringMap.create();
>
> o.aMap.put("v1", "A Map Value 1");
> o.aMap.put("v2", "A Map Value 2");
>
> o.embeddedObj = new CommonDataObject2();
> o.embeddedObj.field1 = "An embbeded object field";
> return o;
> }
>
> @JsOverlay
> public final String convolutedSharedMethod(String someArg) {
> StringBuilder o = new StringBuilder();
>
> anArray.forEachElem((e) -> {
> o.append(aMap.get(someArg));
> o.append(embeddedObj.field1);
> o.append(e);
> });
>
> return o.toString();
> }
> }
>
> @JsType(isNative = true, namespace = JsPackage.GLOBAL, name = "Object")
> public class CommonDataObject2 {
> public String field1;
> }
>
> Instances of this class can be encoded to/from JSON using standard JSON
> functions. You can also create/use the same class on the server and full
> emulation is provided. Given this setup, it gives you a lot of the benefits
> of GWT RPC (i.e. shared data objects and behavior across client/server)
> without the code bloat or performance hit.
>
> Before I publish it to Maven, I still need to finish the docs and do some
> more testing. I am also waiting for some compiler fixes to land.
>
> Please take a look and let me know if there are any changes/additions you
> would like.
>
--
You received this message because you are subscribed to the Google Groups "GWT
Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/google-web-toolkit.
For more options, visit https://groups.google.com/d/optout.
