[maemo-developers] Fremantle treeview handling

[From: Daniel Martin Yerga]

Hi.

On Tue, 11 Aug 2009 08:45:34 +0200 (MEST)
"Till Harbaum" <lists at harbaum.org> wrote:

> Hi,
> 
> i an still migrating some of my osm2go ui to fremantle style. I am
> currently working on all those treelists i am using. When placed
> inside a pannable area, a single click on a treeview item activates
> this immediately (instead of just selecting as it does inside a
> scrolled window). Programs like modest use the tap_and_hold feature
> to create some popup to modify (e.g. delete) a treeview entry. I am
> now trying to do the same but run into two problems:
> 
> - The treeview item gets de-selected immediately before the popup
> appears. Thus there's nothing selected in the treeview anymore once
> the popup is visible and thus the popup doesn't know what treeview
> entry is to be processed. Modest doesn't seem to have that problem.
> The item stays selected (highlighted) there while the popup is
> visible.

Treeviews (and TouchSelectors) in Fremantle have two different modes,
normal mode is the default one and it has the behaviour you're seeing in
the example. Other mode it's the edit mode, where the items are
selected.
To see this mode, you should add the following to the code:
hildon_gtk_tree_view_set_ui_mode(GTK_TREE_VIEW(list),
HILDON_UI_MODE_EDIT);

You have more information here: http://acurti.es/cea

> - The popup causes the rest of the screen to be "blurred away". This
> is nice, but for some reason only works if the treeview is placed in
> the main window. If it's placed in a dialog, the dialog doesn't get
> blurred. How comes?

I really don't know, but I'd think that the window manager is the
culprit for this effect, maybe it's detecting differently a window and a
dialog. Hopefully other people can comment on this.

-- 
Daniel Martin Yerga
http://yerga.net