[PATCH weston] compositor: Support notifying with absolute position too
Eoff, Ullysses A
ullysses.a.eoff at intel.com
Mon Apr 1 07:02:15 PDT 2013
I already submitted http://lists.freedesktop.org/archives/wayland-devel/2013-March/008103.html that does this same thing... except that it preserved the relative "move_pointer" logic.
-----Original Message-----
From: wayland-devel-bounces+ullysses.a.eoff=intel.com at lists.freedesktop.org [mailto:wayland-devel-bounces+ullysses.a.eoff=intel.com at lists.freedesktop.org] On Behalf Of Bill Spitzak
Sent: Wednesday, March 27, 2013 12:24 PM
To: Bradford, Robert
Cc: wayland-devel at lists.freedesktop.org
Subject: Re: [PATCH weston] compositor: Support notifying with absolute position too
Looks like there is a lot of duplicated code between notify_motion and
notify_motion_absolute.
It might be better to have notify_motion just add pointer->x and
pointer->y and call notify_motion_absolute, and put all the shared
logic, and possibly all of move_pointer(), into that.
Rob Bradford wrote:
> From: Rob Bradford <rob at linux.intel.com>
>
> With evdev input devices that generate absolute positions we need to provide
> an infrastructure in the compositor for supporting those.
>
> Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=61997
> ---
> src/compositor.c | 25 ++++++++++++++++++++-----
> src/compositor.h | 5 ++++-
> src/evdev.c | 2 +-
> 3 files changed, 25 insertions(+), 7 deletions(-)
>
> diff --git a/src/compositor.c b/src/compositor.c
> index 3e24295..d339472 100644
> --- a/src/compositor.c
> +++ b/src/compositor.c
> @@ -1782,17 +1782,15 @@ clip_pointer_motion(struct weston_seat *seat, wl_fixed_t *fx, wl_fixed_t *fy)
> }
> }
>
> +/* Takes absolute values */
> static void
> -move_pointer(struct weston_seat *seat, wl_fixed_t dx, wl_fixed_t dy)
> +move_pointer(struct weston_seat *seat, wl_fixed_t x, wl_fixed_t y)
> {
> struct weston_compositor *ec = seat->compositor;
> struct wl_pointer *pointer = seat->seat.pointer;
> struct weston_output *output;
> - wl_fixed_t x, y;
> int32_t ix, iy;
>
> - x = pointer->x + dx;
> - y = pointer->y + dy;
> clip_pointer_motion(seat, &x, &y);
>
> weston_seat_update_drag_surface(seat, x - pointer->x, y - pointer->y);
> @@ -1829,7 +1827,24 @@ notify_motion(struct weston_seat *seat,
>
> weston_compositor_wake(ec);
>
> - move_pointer(seat, dx, dy);
> + move_pointer(seat, pointer->x + dx, pointer->y + dy);
> +
> + interface = pointer->grab->interface;
> + interface->motion(pointer->grab, time,
> + pointer->grab->x, pointer->grab->y);
> +}
> +
> +WL_EXPORT void
> +notify_motion_absolute(struct weston_seat *seat,
> + uint32_t time, wl_fixed_t x, wl_fixed_t y)
> +{
> + const struct wl_pointer_grab_interface *interface;
> + struct weston_compositor *ec = seat->compositor;
> + struct wl_pointer *pointer = seat->seat.pointer;
> +
> + weston_compositor_wake(ec);
> +
> + move_pointer(seat, x, y);
>
> interface = pointer->grab->interface;
> interface->motion(pointer->grab, time,
> diff --git a/src/compositor.h b/src/compositor.h
> index 4cc24d8..dc03aeb 100644
> --- a/src/compositor.h
> +++ b/src/compositor.h
> @@ -556,7 +556,10 @@ weston_surface_activate(struct weston_surface *surface,
> struct weston_seat *seat);
> void
> notify_motion(struct weston_seat *seat, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y);
> + wl_fixed_t dx, wl_fixed_t dy);
> +void
> +notify_motion_absolute(struct weston_seat *seat, uint32_t time,
> + wl_fixed_t x, wl_fixed_t y);
> void
> notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
> enum wl_pointer_button_state state);
> diff --git a/src/evdev.c b/src/evdev.c
> index d2954b5..2c81d2b 100644
> --- a/src/evdev.c
> +++ b/src/evdev.c
> @@ -284,7 +284,7 @@ evdev_flush_motion(struct evdev_device *device, uint32_t time)
> }
> if (device->pending_events & EVDEV_ABSOLUTE_MOTION) {
> transform_absolute(device);
> - notify_motion(master, time,
> + notify_motion_absolute(master, time,
> wl_fixed_from_int(device->abs.x),
> wl_fixed_from_int(device->abs.y));
> device->pending_events &= ~EVDEV_ABSOLUTE_MOTION;
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