Deskypplet is a widget that is intended to break the APPlication dictatorship so common on modern cellphones, and bring the desktop feel of a real computer to N900.
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The main interface on your desktop consists of two parts, one toolbar and one scrollable iconview.
The iconview is quite simple, just tap a folder and deskypplet will go there or tap a file and deskypplet will try to open it, unless you are in advanced mode where deskypplet will show a userconfigurable menu where you can choose what to do.
However. all widgets have one problem incommon, if you touch the screen for too long then the hildon-configbutton will appear and interrupt the operation.
And that is also why fingerscrolling, longpress and a lot of other useful ways to control deskypplet cant be implemented.
The toolbar consists of two icons and a label showing the current directory.
Tap this button to move up one step in the directorytree.
/dir/subdir/../..
Tap the directoryname to show the bookmarks.
or
This button will open the settings and userconfigurable applicationsmenu.
These two icons also shows if you are in fastmode or advanced mode , in advanced mode you get a userconfigurable menu where you can manipulate files and directorys like in a filemanager.
More about on how to edit bookmarks and add stuff to all the menus is described in the page about other configfiles.
Fat finger mode...
Now there is also a combined mode of fast and advanced mode
in no-fat finger mode then you have fastactions on either the icon or the textname and advanced functions on the other.
So if the modeicon shows fastmode then you have fastmode on the icon and advancedmode on the textfield below it.
and if you are in advancedmode then the icon will open the advanced mode menu while the textfield below performs the fastmode function.