497412 - Mouse-move tracking issues in Java modal dialog

Status: RESOLVED DUPLICATE of bug 495278

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

Description

[Ronald Kunkel]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b99) Gecko/20090605 Firefox/3.5b99
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b99) Gecko/20090605 Firefox/3.5b99

With FF 3.5, java applets have numerous focus related issues. Including, custom cursors do not work properly, tooltips do not work properly, mouse events not propogated properly. The attached source code demonstrates the problem. This code will display a modal dialog. When run using FF 3.0.7, for example, cursor is changed to "pencil.png" image when mousing over the dialog. A tooltip is displayed when hovering over the button on the dialog. Mouse entered and clicked events properly received. This behavior continues consistently after various mouse clicks on and off the dialog.

However, when using FF 3.5, it doesn't go so well. The cursor is not changed, and no tooltip appears over the button. Mouse entered event is not detected UNLESS, you click somewhere else on the browser, then move the mouse back over the dialog. But as soon as you click on the dialog, you lose the event handling again. If you then reload the applet, initially things appear ok, you get the custom cursor, the tooltip, etc. However, as soon as you click anywhere on the dialog, things break again.

Reproducible: Always

Steps to Reproduce:
1.put the attached java code into a file called TestApplet.java
2.run "javac TestApplet.java"
3.run "jar cvf apptest.jar *.class pencil.png" // to archive the code and cursor image file.
4.start FF3.5 and open the attached html which will start the applet
Actual Results:  
As described in "Details"

Expected Results:  
Code should be have the same in FF3.5 as it does in 3.0.7 and other pre 3.5 releases.

code sample will be added..

Comment 1

[Ronald Kunkel]

Attachment: java source for test case

Comment 2

[Ronald Kunkel]

Attachment: html to run the applet

Comment 3

[Ronald Kunkel]

Attachment: png file for the custom cursor image

Comment 4

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Ronald, which version of the Java embedding plugin are you using?

Comment 5

[Ronald Kunkel]

Henrik, We are currently using 1.5.0_19 (the latest) but I have seen it on the previous version as well.

Comment 6

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Attachment: testcase

This is a single file testcase to download. Just extract and open the testcase.htm file.

Comment 7

[Henrik Skupin [:whimboo][⌚️UTC+1]]

(In reply to comment #5)
> Henrik, We are currently using 1.5.0_19 (the latest) but I have seen it on the
> previous version as well.

No. I don't mean the Java version. Please open the addons manager and select the plugins tab. Which version has the Java Embedding Plugin? It's working fine for me with 0.9.7, Java 1.6 u13 and Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1pre) Gecko/20090617 Shiretoko/3.5pre ID:20090617031317

Comment 8

[Steven Michaud [:smichaud] (Retired)]

To find which version of the Java Embedding Plugin you're using (on
the Mac), visit "about:plugins" and scroll down until you see "Java
Embedding Plugin" and a version number.  Or use Henrik's method.

I'll get to your testcase as soon as possible (probably in the next
few days).  In the meantime:

Do these problems also happen with FF 3.5b99 (or RC1) on Windows or
Linux?

Do they also happen with current FF 3.0.X nightlies?
(ftp://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla1.9.0/firefox-3.0.12pre.en-US.mac.dmg)

Comment 9

[Ronald Kunkel]

The version of java embedding plugin is 0.9.7.1, with MRJ Plugin version 1.0-JEP-0.9.7.1. 

This problem does not occur with 3.5 on windows. I don't have a linux box on which to test unfortunately. On the Mac I've seen it with both 3.5b99 and rc1. It does not happen with any of the 3.0.x up through 11, but I will try the nightly and provide an update as to whether it occurs there...

Comment 10

[Ronald Kunkel]

The problem  does NOT occur with the 3.0.12 nightly. I still see the same problem when using Henrik's test code with 3.5, but not with 3.0.12

Comment 11

[Steven Michaud [:smichaud] (Retired)]

Today's FF 3.0.12 nightly should bundle JEP 0.9.7.2 (the latest
version of the JEP).  Please check that it does.

Then try replacing FF 3.5b99's and 3.5RC1's bundled JEP 0.9.7.1 with
JEP 0.9.7.2.  Here's how to do that:

Download JEP 0.9.7.2 from http://javaplugin.sourceforge.net/.  Install
it (JavaEmbeddingPlugin.bundle and MRJPlugin.plugin) to your
/Library/Internet Plug-Ins/ folder.  Then remove the older copies of
the JEP from the FF 3.5b99 and 3.5RC1 distros (from their
Contents/MacOS/plugins directories).  For more information see the JEP
Readme (http://javaplugin.sourceforge.net/Readme.html).

Comment 12

[Ronald Kunkel]

Thanks! this seems to be working, but I'll do some more testing just to be sure. When FF3.5 is released will it be bundled with JEP 0.9.7.2 or will we have to go through this separate install procedure?

Comment 13

[Steven Michaud [:smichaud] (Retired)]

> Thanks! this seems to be working, but I'll do some more testing just
> to be sure.

You're most welcome.  I'm glad to hear it.

> When FF3.5 is released will it be bundled with JEP 0.9.7.2 or will
> we have to go through this separate install procedure?

I hope JEP 0.9.7.2 will be bundled with the final release of FF 3.5,
but that hasn't yet been decided (see bug 496187 for more info).

As I said above, I'll test your testcase later (probably this
weekend).  But it's conceivable that I, like Henrik, won't be able to
reproduce your problems.  If so, we'll need to get more test results
from you.

In particular, I need to pin down whether or not your problems are the
result of one or more bugs in JEP 0.9.7.1.  If this is true, then
making Firefox (3.0.11, 3.0.12-nightly, 3.5 RC1 and 3.5-nightly (aka
1.9.1-branch nightly)) use JEP 0.9.7.1 should make the problems recur,
and making these Firefox distros use JEP 0.9.7.2 should make them go
away again.

The more convincing a case I can make that JEP 0.9.7.2 fixes this bug,
the more likely we can get it into the FF 3.5 release.

Side note:  It's an old version of the JEP (0.9.6.4) that comes
bundled with FF 3.0.11.

Comment 14

[Steven Michaud [:smichaud] (Retired)]

Ronald, I can confirm your report ... though things aren't exactly as
you describe.

When you first load or reload the applet the modal window comes up and
is made key.  Often you don't see the bug(s) at this point.  This is
presumably what happened to Henrik.

But if you click on another window (or the desktop), then back on the
applet's modal window, you always see the bugs.  Of which there are
two:  1) the mouse cursor doesn't change into a pencil when you mouse
over the modal dialog; 2) you don't see a tooltip when you hover the
mouse cursor over the Button button.

I've also confirmed that this is a bug in JEP 0.9.7/0.9.7.1, and that
it's fixed in JEP 0.9.7.2.

This bug has the same cause as bug 495278, and is more-or-less a dup.