[hafqa] [hafqa] [Bug 3673] Switch to Virtual keyboard in x-terminal does not display previous input

[From: bugzilla-daemon at maemo.org]

https://bugs.maemo.org/show_bug.cgi?id=3673





------- Comment #4 from Jianjun.Yu at plenware.com  2008-09-23 13:42 GMT+3 -------
I investigate the source code of vte . Found that there is a funtion which
leads the virtual keyboard cannot display previous input .I will give the
steps.
[sbox-DIABLO_ARMEL: ~/vte] > apt-get source libvte4
[sbox-DIABLO_ARMEL: ~/vte] > cd ./vte-0.12.2/debian/patches/
[sbox-DIABLO_ARMEL: ~/vte/vte-0.12.2/debian/patches] > vim
90-maemo-changes.patch
This is a patch file which will patch the source code automatic when you build
package.Then you will see this function in vte.c

static gboolean
vte_terminal_im_retrieve_surrounding(GtkIMContext *im_context, gpointer data)
{
        gtk_im_context_set_surrounding(im_context, "", -1, 0);
        return TRUE;
}

Because of this function. we will don't see previous input forever. So I tried
hard to find a way of getting the previous input.but i failed. why the entry
widget implement this function (switch to virtual keyboard can display previous
input). if you investigate the code of gtkentry.c . You will find the same
function like this.

static gboolean
gtk_entry_retrieve_surrounding_cb (GtkIMContext *context,
                               GtkEntry     *entry)
{
  gtk_im_context_set_surrounding (context,
                                  entry->text,
                                  entry->n_bytes,
                                  g_utf8_offset_to_pointer (entry->text,
entry->current_pos) - entry->text);

  return TRUE;
}
So The entry widget can display previous input. Of course this just is the most
import part. I know that the HIM provides the access to and inside information
of the *text entry* widget. I want to know that whether could I fix this bug .
Last this bug is more likely a enhancement.
more information about HIM
http://live.gnome.org/Hildon/HildonInputMethod/Concepts


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