Hi all,
I'm just starting with JsInterop but I can't figure out why some of the
things aren't working.
First thing first: I'm using GWT 2.7 and I've setup maven/pom
with "-XjsInteropMode" via "<jsInteropMode>JS</jsInteropMode>"
configuration:
<!-- GWT Maven Plugin -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${gwtVersion}</version>
[…]
<configuration>
[…]
<jsInteropMode>JS</jsInteropMode>
</configuration>
</plugin>
I tested that the flag was being correctly set by passing wrong values and
see that the compiler didn't run. I also followed
https://github.com/gwt-maven-plugin/gwt-maven-plugin/issues/89
I have the following dependencies declared in my pom:
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwtVersion}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<version>${gwtVersion}</version>
<scope>provided</scope>
</dependency>
So my problems are the following:
*Issue #1: Can't find the JS.js method anywhere*
In the "Deep dive JS Interop" from Ray Cromwell at GWT.create 2015 (slides
<https://docs.google.com/a/byclosure.com/file/d/0ByS1wxINeBWjeGYxbkJpamxFZ28/edit>)
there are several slides that refer to a (static) "js" method. Nextgen
GWT/JS Interop (Public)
<https://docs.google.com/document/d/1tir74SB-ZWrs-gQ8w-lOEV3oMY6u6lF2MmNivDEihZ4/edit#>
also
refers this method. However I can't find this method... Where is it? How
can I make my application use it?
I manage to make use of @JsType/@JsProperty via a JSNI method and an
Overlay Type, but I what I really wanted is not having to write any JSNI at
all.
@JsType
public interface UserJs {
@JsProperty String getName();
@JsProperty String getEmail();
}
public static native UserJs getUser() /*-{
return $wnd.User;
}-*/;
*Issue #2: Can't make @JsExport work*
I tried several combinations of @JsExport based on the previous slides and
Nextgen
GWT/JS Interop (Public)
<https://docs.google.com/document/d/1tir74SB-ZWrs-gQ8w-lOEV3oMY6u6lF2MmNivDEihZ4/edit#>
but
couldn't manage to have any symbol exported to the global JS namespace.
E.g. I couldn't make the following example from Ray's "Deep dive JS
Interop" talk work:
@JsNamespace("mylib")
class Foo {
@JsExport
public static final int CONSTANT = 42;
}
mylib, Foo, or CONSTANT symbols aren't available in the JS runtime. What am
I doing wrong?
Thank you in advance,
Vasco
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