Re: Touch support in Abiword

Hello :),

On lun, 2012-07-16 at 12:54 -0300, Gonzalo Odiard wrote:
> Hi,
> In the Sugar environment, we are doing work to support touch in our
> user interfaces.
> Thanks to Abiword port to gtk3, should be possible use touch to do
> text selection in our Write activity too.
> The proposed behaviour was detailed by Gary Martin here
> http://wiki.sugarlabs.org/go/Design_Team/Sugar_Shell_Touch_Input#Text_editing
> and is being implemented by Carlos Garnacho in gtk
> http://git.gnome.org/browse/gtk+/log/?h=touch-text-selection
> I have read,  Abiword was used in other mobile envs in the past,
> maybe there are code useful already present in the code,
> and I don't know how much code from gtk can be used in the Abiword canvas.
> How do you think should be the best way to implement touch text
> selection in Abiword?

From what I gathered, there are two things that might need to be
reimplemented on Abiword so it's on par with GTK+ widgets wrt touch
friendliness,

* touch/kinetic scrolling: This is implemented in GtkScrolledWindow
through 3.0's GtkWidget::captured-event, as Abiword doesn't use this
widget for scrolling support, this piece of code has to be reimplemented

* text selection, in that branch, there's a private GtkTextHandle helper
object that text widgets use to manipulate the selection, if it remains
private API, Abiword could need its own copy of it.

  Carlos