304995 - No filepicker comes up under WIN2000

Status: RESOLVED WORKSFORME

(Toolkit Graveyard :: XULRunner, defect)

Description

[Andreas Otte]

In my xulrunner application I want to open a filepicker with code similar to the
one following below. This works as expected on linux, but on Win2000 nothing
happens, no filepicker comes up. Starting with -jsconsole reveals no errors or
warnings: 

var nsIFilePicker = Components.interfaces.nsIFilePicker;
var fp =
Components.classes["@mozilla.org/filepicker;1"].createInstance(nsIFilePicker );
fp.init( this.mDialog, 
         "Load",
         nsIFilePicker.modeOpen );
if ( fp.show() == nsIFilePicker.returnOK && fp.file ) {
    loadTask(fp.fileURL.spec);    
}

Happens on nightly builds of 1.8. What am I missing?

Comment 1

[:Gavin Sharp [email: [e-mail]]]

Is this still a problem?

Comment 2

[Andreas Otte]

I will try this again as soon as possible.

Comment 3

[Andreas Otte]

No, still does not work. Maybe it has something to do with developing under linux and deploying under windows too. Is there a ready example developed under windows that uses the filepicker I can try? 

Comment 4

[:Gavin Sharp [email: [e-mail]]]

Are you able to debug, at least from JS? Same code works for me, with s/this.mDialog/window/. Maybe this.mDialog is null? Is it not a nsIDOMWindow?

Comment 5

[:Gavin Sharp [email: [e-mail]]]

(On windows XP, but that shouldn't matter)

Comment 6

[James Ross]

You should get an NS_ERROR_FAILURE exception when you pass a null (or otherwise invalid) parent window to init().

Also note that you must specifically set the pref javascript.options.showInConsole to true for any errors to show up in the JS Console.

Comment 7

[Andreas Otte]

reply to comment #6)
> Also note that you must specifically set the pref
> javascript.options.showInConsole to true for any errors to show up in the JS
> Console.

I will check this as soon as I have access to my computer at work again. 

Comment 8

[Andreas Otte]

Hmmm ... trying to open the FilePicker for load still does nothing, not even an error, but FilePicker for SaveAs results in this:

Error: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIFilePicker.init]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: chrome://venn/content/venn.js :: saveAsTask :: line 1870"  data: no]
Source File: chrome://venn/content/venn.js
Line: 1870

I will investigate ...

Comment 9

[Andreas Otte]

I now see the exception on linux too with the latest 1.8 xulrunner. Works fine with window instead of this.mDialog. Very interesting, I will check again against win2000.

Comment 10

[Andreas Otte]

Ok, works on linux and windows. Thanks guys for the hint. What did I learn: I was lucky that it worked on linux as long as it did. Beware of bad examples floating around.