Digikam automatically expands folders while dragging over them

[tdn]

When a user drags a folder over another folder in Digikam, the folder is automatically expanded. This confuses users and makes it very easy to accidentially drop the folder in the wrong album.

A screencast illustrating the problem is available here:
http://ifile.dk/d/c4bd89b9-6f4b-49bf-be82-53ffc24ef7f8/

I see three problems here:
1: The automatic folder expansion can be useful in some use cases, however, it is my experience that it confuses users more than it helps.
2: Appearently, there is no way to disable this behaviour from the Settings window.
3: .. and this is probably the detail that makes this behavior most annoying/dangerous: the folder expansion happens too quickly. I am guessing it happens after hovering between 1 and 2 seconds. This is just too fast. Many users require much longer time in order to position the mouse correctly. I would say between 3-5 seconds would easily be needed.

Recommended solution:
1: Provide an option to enable/disable this feature.
2: Set the default bahavior to have this option disabled. (I think other KDE applications such as Dolphin, etc. also have this feature disabled by default)
3: Make the delay before folder expansion configurable: let the user set the delay from a range between 500ms to 10s. Set default value to 4s.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: digikam 2:2.1.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Thu Nov 10 14:01:02 2011
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 LANGUAGE=en_DK:en
 PATH=(custom, user)
 LANG=en_DK.UTF-8
 SHELL=/bin/zsh
SourcePackage: digikam
UpgradeStatus: No upgrade log present (probably fresh install)