GalleryPage.java 文件源码

/**
 * Helper method to update the app image
 * @param url  The URL of the image to show
 * @param container  The container that image widget resides
 */
private void updateAppImage(String url, final Panel container) {
    image = new Image();
    image.addStyleName("app-image");
    image.setUrl(url);
    // if the user has provided a gallery app image, we'll load it. But if not
    // the error will occur and we'll load default image
    image.addErrorHandler(new ErrorHandler() {
      public void onError(ErrorEvent event) {
        image.setUrl(GalleryApp.DEFAULTGALLERYIMAGE);
      }
    });
    container.add(image);

    if(gallery.getSystemEnvironment() != null &&
        gallery.getSystemEnvironment().toString().equals("Development")){
      final OdeAsyncCallback<String> callback = new OdeAsyncCallback<String>(
        // failure message
        MESSAGES.galleryError()) {
          @Override
          public void onSuccess(String newUrl) {
            image.setUrl(newUrl + "?" + System.currentTimeMillis());
          }
        };
      Ode.getInstance().getGalleryService().getBlobServingUrl(url, callback);
    }
}