Re: [g-a-devel]Accessibility for "Stock Ticker Applet "

["jagadeesh banavara " <jagadeesh bana wipro com>]

Hi Padraig

> Can the applet be used with just the keyboard, i.e without using the
mouse?

No. This applet cannot be used with just the keyboard. We need mouse for
this.

> What widgets in the applet can receive focus?

The mouse track enabled ferret shows BonoboWidget when the focus is on
the drawing area and PanelAppletFrame when the focus is on the right and
left shift scroll buttons.

> Concerning implementing AtkText for scrolling items, what is so wrong
about
> presenting all the text. The only problem I can see is that it is
difficult to
> determine exactly what text is being displayed at a specified time but I
would
> expect that the consumer of the AtkText interface is interested in all the
text.

If we decide to implement the AtkText interface, the problem is how to read
the text
written on the drawing area.  The text (Stock Inforamation) is written on
the
drawing area using gdk calls and pixmap. The current application has no
custom
widgets in the application.

Does any of the following approaches will provide solution
1. Write a new custom widget and implement the AtkText Interface.
2. In the applet source call gtk_widget_get_accessible(GtkDrawingArea) and
    set the stock information text as the description. But the problem is
the
    GtkDrawingArea doesn't receive the focus.
3. Provide gail implementaion for the gtk drawing area.

Please suggest.

Thanks & Regds
Jagadeesh


> Padraig
>
>
> >
> > Hi,
> >
> > I have done a study of "Stock Ticker" applet from the accessibility
> > perspective.
> >
> > Applet Name :  gtik - "Stock Ticker"
> >
> > Description of the Applet :      "Its a scrolling stock ticker applet
and
> > gets a page from
> >                                                Yahoo finance for the
stock
> > symbols that are being
> >                                                entered into the
properties
> > dialog".
> >
> > Custom Widgets :     No Custom Widgets present
> >
> > Required AtkInterface :
> >
> > When this applet is launched through panel it creates a drawing area
> > by calling gtk_drawing_area_new().  Both end of the drawing area
> > has left-shift (<<) and right-shift(>>) buttons for scroll change.
> > The stock symbols to display and the update frequency can be
> > configurable through properties dialog box.
> >
> > It saves the fetched html file from yahoofinance to our home directory
> > and then parses the HTML to get the data it will scroll.
> >
> > This text data is written on the drawing area using gdk calls
> > gdk_draw_text() etc. Note that the parent of the GtkDrawingArea is
> > GtkWidget so the AtkComponent interface is inherited.
> >
> > From the perspective of Accessibility we need to provide AtkText
interface.
> > From the Bills words for Deepa's mail regarding gnome-about
> >  "Implementing AtkText for scrolling items is a real mess". Is it
applicable
> > here also. What approach we should adopt here to get the text out of the
> > drawing area since the text will change dynamically.
> >
> > We may have to provide ToolTips for the left & right shift buttons.
> >
> > Could you please comment on the above
> >
> > Thanks & Regards
> > Jagadeesh
> >
> >
> >
> >
> >
> >
> >
>
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> Gnome-accessibility-devel gnome org
> http://mail.gnome.org/mailman/listinfo/gnome-accessibility-devel

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