I have a number of places where the user can download a servlet generated
file. I handle this generically with several steps
1) In my app's HTML, I put an IFRAME
<!-- Frame for downloading files without opening a new window. -->
<iframe src="javascript:''" id="__gwt_downloadFrame"
style="width:0;height:0;border:0"></iframe>
2) In my app's EntryPoint, I declare
private static final String DOWNLOAD_IFRAME = "__gwt_downloadFrame";
private static Frame downloadFrame;
...
Wrap the IFRAME:
@Override
public void onModuleLoad() {
downloadFrame =
Frame.wrap(Document.get().getElementById(DOWNLOAD_IFRAME));
...
Provide method for downloading
public static void downloadURL(String url) {
downloadFrame.setUrl(url);
}
3) Whenever a download is ready, say in the onSuccess() of an RPC call
MyApp.downloadURL(url);
On Friday, February 1, 2013 10:57:06 AM UTC-5, membersound wrote:
>
> Hi,
>
> I created a servlet that provides a downloadable file (from String
> content) by writing to the ServletOutputStream.
> On the client side, I trigger the file download by an Anchor with:
>
> Window.open(GWT.getModuleBaseURL() + "MyServlet", "_blank", "");
>
> It works fine, BUT it seems to open a new browser window, which is somehow
> directly closed. After this the file download dialog is show.
> How can I prevent this flickering of a new browser window? Can't I achieve
> this somehow inline?
>
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