84573 - WWW_Activate followed by WWW_OpenURL can sometimes open 2 windows

Status: RESOLVED WONTFIX

(Core :: General, defect)

Description

[Bill Law]

I detected the following flaw in the way we handle WWW_Activate (and 
WWW_OpenURL) DDE requests.

On WWW_Activate, if no navigator windows are open, we open one.  The open 
occurs asynchronously.  All that is according to spec.

But the subsequent WWW_OpenURL can come in real quick.  In some cases (so far, 
only observed in a debug build which is much slower), the window opened for the 
preceding WWW_Activate may not have come to life enough to be detected as 
the "current navigator window."  In that case, we think there are no navigator 
windows, and open a new one.

The end result is that 2 new windows are opened.

I can't think of a quick fix for this one.  There is the notion of a CBR_BLOCK 
response on the WWW_Activate.  But that requires us to later unblock, which 
takes a fair bit of code (and may not work, if clients aren't expecting that 
response).

I have not observed this behavior in a release build (but I only tried on a 
fast 500MHz machine).  It may be an issue only for debug builds, in which case 
this bug is much lower priority to fix.

Comment 1

[Bill Law]

Setting target milestone.

Comment 2

[Arun Prasannan (polar)]

This bug is being marked EXPIRED as it has seen no activity in a very long time.

If you think that the issue reported might still be relevant, please test with a recent release of SeaMonkey and if the problem persists feel free to re-open the report. Thank you.

http://www.seamonkey-project.org/

Comment 3

[Mark Banner (:standard8)]

Bulk reopening incorrectly expired bugs - no activity does not constitute no bug - these need proper checking.

Comment 4

[Phoenix]

With Bug 491947 - Disable DDE shell integration this is not relevant now