411117 - Java Applet shows Button, which is set to visible false.

Status: RESOLVED INCOMPLETE

(Plugins Graveyard :: Java (Java Embedding Plugin), defect)

Description

[Bhavesh Patel]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9b2) Gecko/2007121014 Firefox/3.0b2

Problem FireFox 3.0 beta 2, MAC OS 10.5.1, JRE Version 1.4.2_16.

When a Java applet loads for first time, i have a JButton in applet (with no text on button just set icon, disable icon and size of the button), which is initially set to Visible and Enabled false, so that it will not be visible on applet load, but in FireFox 3.0 beta 2 it was shown / visible on applet load. This problem was happening only on FireFox 3.0b2 on MAC, with same JRE it was working fine on Safari Version 3.0.4 (523.12.2). 

Build Identifier: (Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b2) Gecko/2007121120 Firefox/3.0b2)
On Windows its working fine with FireFox 3.0b2 same JRE Version 1.4.2_16.

Reproducible: Always

Steps to Reproduce:
1. Just need to run a Java applet which has button visibility false, in Firefox 3.0b2.

I have a existing application which fails on FireFox 3.0b2, so if asked i will write a sample applet code to reproduce.
Actual Results:  
When applet load the Button is visible. 
(even in code it was set to Visible false)

Expected Results:  
Button should not be visible.
Button is set to visible false then it should not be visible.

Comment 1

[Steven Michaud [:smichaud] (Retired)]

Please post or attach the source code for a simple test-case Java
applet.

Comment 2

[Bhavesh Patel]

Attachment: Attached "TestApplet.zip" just unzip file and run applet.html

UnZip "TestApplet.zip" and run "applet.html" in firefox on mac.
Source code for applet is inside "ButtonVisible.jar"

Comment 3

[Bhavesh Patel]

I have attached the source code.

Comment 4

[Steven Michaud [:smichaud] (Retired)]

Sorry to take so long to respond -- I've been very busy with other
things.

I'm able to reproduce the problem you report, and have tracked it down
to a particular method in the Jave Embedding Plugin --
enableDisabledComponents() in SimpleLayout.java.  (The Java Embedding
Plugin (aka the JEP) is bundled with all Mozilla.org browsers on OS X,
and which allows them to use current versions of Java.)

Not using that method gets rid of your problem.  But, unfortunately,
that method was included as a workaround for problems with the Java
applets at the popular http://www.map24.com site, and the problems
that it works around still persist (so getting rid of this method
breaks the http://www.map24.com site).

I will need to see if I can find another way to work around the
problems with Map24.com.  But that will probably take a while.

In the meantime, I don't consider this problem particularly urgent.
Yes, it's a bug.  But it's existed in the JEP (and in Mozilla.org
browsers) for several years, and you're the first one who's reported
it.

Comment 5

[Bhavesh Patel]

Ok I have tried to put work around in my applet but it's like my applet have too much functionality so not got full work around to get complete rid off from the problem.
As the problem is there in JEP, so can i expect it can be Fix / rectified in coming Firefox version. 

Comment 6

[Steven Michaud [:smichaud] (Retired)]

I will try to find time to work on this in the next few weeks.

This problem won't be fixed in the Firefox 3 release.  But (with luck)
I may be able to fix it in time for one of the subsequent point
releases (e.g. Firefox 3.0.0.1 or 3.0.0.2).

Comment 7

[Bhavesh Patel]

Please evaluate Bug 419824 ASAP because it blocks our application.
https://bugzilla.mozilla.org/show_bug.cgi?id=419824

Comment 8

[Steven Michaud [:smichaud] (Retired)]

The JEP is long gone.