62733 - Embedding API doesn't support multiple mouse listeners.

Status: VERIFIED FIXED

(Core Graveyard :: Java APIs to WebShell, defect, P3)

Description

[Oleg Khokhlov]

If register a few MouseListeners using addMouseListener method,
event pass only through last registered listener (listener that was 
registered last), and other registered listener (even standart listener, 
for example EMWindow) do not receive any events.

Platform: Webclient source from Nov 30,2000 and Mozilla PR3, WinNT 4.0 with SP4.

May be, it has to be reassigned to owner of Embedding API as in bug# 54164 ??

Comment 1

[edburns]

reassign

Comment 2

[Ashu Kulkarni]

I had implemented multiple listeners a couple of months back. But after
reviewing the overhead involved of supporting multiple listeners ourselves
(since Mozilla does not support this), we had decided to not include this. 

_Ashu

Comment 3

[Ashu Kulkarni]

Mozilla does not support multiple Mouse Listeners. After creating a prototype 
Webclient implementation for multiple Listeners (where Webclient handled the 
task of tracking and calling into the multiple listeners), we decided to not 
support multiple listeners in Webclient. This is because the overhead involved 
is significant and unwarranted. I am closing this bug and will reopen it only 
if Mozilla starts supporting Multiple Listeners. Then we might choose to expose 
that functionality.

Comment 4

[Oleg Khokhlov]

I mark it as verified.