Friday, April 13, 2018

Re: How can i send data from Java Script to gwt Coding using JsInerop.

Your Java code isn't async, but your JSNI method and JS function are - the imageCapture() method is passing an async function to ``, and expected it to return right away. Instead, your `imageCapture` method should take a java-annotated @JsFunction and pass that in place of onSuccess (and probably onFailure too).

On Wednesday, April 11, 2018 at 12:55:18 AM UTC-5, cRaZy cRuZz wrote:
Here it is ...!

-->I am calling cordova implementation from this coding. 

//Handles imageCapture icon 
final Image cameraIcon = new Image(ImageNameConstants.CAMERA);
cameraIcon.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
if (!isReadOnly() && isEditable()){
if (ClientSettings.isMobileNative()){
     imageData = imageCapture(); //This  might wrong iam not getting data.
FileContent fileContent = new FileContent();
if (imageData != null){
    FileRPCServiceAsync cameraRpc = ServiceFactory.getService(FileRPCService.class, FileContent.class);
new BaseAsyncCallback<FileContent>(messagePresenter) {
public void handleSuccess(FileContent file) {
public boolean handleException(Throwable caught) {
Log.error("Error in saving file status:"
+ ErrorMessageHandler.stringify(caught));
return true;

                     private  native  String imageCapture()/*-{
if ($wnd.isImageSupported()){
return $wnd.imageCapture();
//var imageCaptureWidget = $doc.getElementById();

-->This my JS code.

function isImageSupported(){
var supported = true;
return supported;
function imageCapture(){
try {, onFail, {
        quality: 50,
        destinationType: Camera.DestinationType.DATA_URL,
        sourceType: Camera.PictureSourceType.CAMERA
    function onSuccess(imageData) {
        return imageData;

    function onFail(message) {
        alert('Failed because: ' + message);
} catch(e){
alert("CAPTURE-ERROR-Works On Mobile Devices Only.");

please some one help me after taking image i need that base64 string in js to  java async call, how to achieve this by using jsInterop.

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