[maemo-developers] [maemo-developers] VirtualKeyboard service/API

[From: Antonio Gomes]

Hi there,

back to virtual keyboard stuff, I'm wondering how could a non-gtk entry
(mozilla password html form in this case) could hide the inputed text (after
showing for a short period of time - default behaviour), like if I set
gtk_entry_set_visibility of a GtkEntry to FALSE. I've been looking over the
GtkEntry source code (at http://maemo.org/lxr/source/gtk%2B/gtk/gtkentry.c)
and its way seems to be to gtk_gobject dependent. Is there any workaround ?
Aaron ? :)

On 1/30/06, Aaron Levinson <alevinsn at aracnet.com> wrote:
>
> First off, vte is just another Gtk widget, and it uses a Gtk input method.
> It just so happens that vte is the widget that provides most of the
> functionality for xterm.  You can examine the source code for vte for more
> information.
>
> There is no "delete" key on the virtual keyboard, so I would have to
> assume that you are getting that from your keyboard.  When the virtual
> keyboard is used to send a backspace, it will result in a key-press and
> key-release event (since there is no simple way to represent this
> character using the GtkIMContext's "commit" event).  So, you'll need to
> handle these special keys in your key-press and key-release event
> handlers.  Basically, if the GtkIMContext doesn't handle the key-press or
> key-release in the calls to gtk_im_context_filter_keypress(), then you may
> want to handle certain key events or just blindly handle all that get
> through the filter.
>
> You can build vncviewer in debug mode (use ./configure --help to determine
> the proper option) and debug it to see how it handles a virtual keyboard
> backspace.
>
> And finally, I will again refer you to the GtkEntry class, which is a
> relatively simple class that demonstrates how to properly use input
> methods.  In getting input methods working properly in vncviewer, I
> studied the source code of xterm, vte, GtkEntry, and other input-driven
> widgets.
>
> Aaron
>
> On Mon, 30 Jan 2006, Antonio Gomes wrote:
>
> > Some keys are not recognized, though. Actually, mainly those related to
> > deleting actions (like delete, backspace virtual keyboard keys and so
> on).
> > As far as I can see/understand, xterm also had to handle them in a
> proper
> > way, using "vte" [1] for that. Is it ? Is there other GtkIMContext
> singal to
> > handle actions like these ?
> >
> > [1]
> >
> http://developer.gnome.org/doc/API/2.0/vte/vteterminal.html#VTETERMINALERASEBINDING
>
>
--
--Antonio Gomes
http:// tonikitoo (dot) blogspot (dot) com (slash)
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