Please keep the CC in tact, this is a cross-list discussion. On Mon, Nov 12, 2012 at 03:40:02PM EST, Jason White wrote: > Luke Yelavich <[email protected]> wrote: > > > My initial thought is to implement some form of hand-off process, where an > > assistive technology like Orca can request to take over control of gesture > > processing at the root X window. This would require a desktop environment > > that requires root X window gesture processing priority to register with an > > arbitrator that manages who has access to the root X window for gesture > > processing. Orca would then register with the same arbitrator, and request > > to be handed control of gesture processing, and possibly be given a pointer > > to the relinquishing environments' code to allow for further gesture > > processing to take place for the environment, if the gesture used is not one > > that Orca listens for. > > > > Since this is for assistive technologies, and given that at-spi is the > > defacto standard for GUI environment accessibility on GNOME/Unity/QT, I > > propose that this arbitrator could be added to at-spi. Its slightly outside > > at-spi's scope, but any desktop environment that wishes to offer > > accessibility will have this service running in the background, and I don't > > see the point in writing another daemon to run in the user session just for > > this arbitration process. > > If I remember rightly, AT-SPI 2 already handles keyboard events (including the > synthesis of keyboard input), so there is a precedent within the existing > infrastructure for the above proposal.
Yes, it does. > It would also be prudent to consider the implications of the anticipated move > by desktop environments from X to Wayland for the proposal. We don't want > accessibility infrastructure developers to be scrambling to catch up when a > widely used desktop environment makes that transition, since it is known well > in advance that this is likely to happen. I plan to extend orca to use the geis interface, so it at least will not be exposed to that transition, at least from a touch point of view. Luke -- Mailing list: https://launchpad.net/~unity-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~unity-dev More help : https://help.launchpad.net/ListHelp
