[PATCH v3 weston 2/2] Support axis source, axis discrete, frame and axis stop events
Jonas Ådahl
jadahl at gmail.com
Sun Jan 17 01:59:50 PST 2016
On Tue, Dec 08, 2015 at 11:15:01AM +1000, Peter Hutterer wrote:
> Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
Took another look at this patch. I noticed a few things.
First, it doesn't build when screen-share and the RDP backend is
enabled, because of the API changes in the first patch.
The other thing is that if weston runs on top of a compositor that
doesn't support the .frame event, it will fail to implement support on
its own. In other words, if compositor-wayland runs on an older wl_seat,
it needs to emit wl_pointer.frame events by itself. The same applies to
screen-share. The RDP backend also wasn't updated to emit the new .frame
event.
Jonas
> ---
> Changes to v2:
> - use the new weston axis event struct, client-side is still a per-event
> handler (could be done at some later point)
> - couple of minor improvements to extracting the information out of libinput
>
> clients/eventdemo.c | 57 ++++++++++++++++-
> clients/window.c | 97 ++++++++++++++++++++++++++++-
> clients/window.h | 31 +++++++++
> desktop-shell/exposay.c | 12 ++++
> desktop-shell/shell.c | 33 ++++++++++
> ivi-shell/hmi-controller.c | 15 +++++
> src/compositor-wayland.c | 66 ++++++++++++++++++++
> src/compositor-x11.c | 13 ++++
> src/compositor.h | 16 +++++
> src/data-device.c | 12 ++++
> src/input.c | 93 ++++++++++++++++++++++++---
> src/libinput-device.c | 128 ++++++++++++++++++++++++++++----------
> tests/weston-test-client-helper.c | 32 ++++++++++
> 13 files changed, 564 insertions(+), 41 deletions(-)
>
> diff --git a/clients/eventdemo.c b/clients/eventdemo.c
> index bdad6fd..e323aa5 100644
> --- a/clients/eventdemo.c
> +++ b/clients/eventdemo.c
> @@ -259,6 +259,54 @@ axis_handler(struct widget *widget, struct input *input, uint32_t time,
> wl_fixed_to_double(value));
> }
>
> +static void
> +pointer_frame_handler(struct widget *widget, struct input *input, void *data)
> +{
> + printf("pointer frame\n");
> +}
> +
> +static void
> +axis_source_handler(struct widget *widget, struct input *input,
> + uint32_t source, void *data)
> +{
> + const char *axis_source;
> +
> + switch (source) {
> + case WL_POINTER_AXIS_SOURCE_WHEEL:
> + axis_source = "wheel";
> + break;
> + case WL_POINTER_AXIS_SOURCE_FINGER:
> + axis_source = "finger";
> + break;
> + case WL_POINTER_AXIS_SOURCE_CONTINUOUS:
> + axis_source = "continuous";
> + break;
> + default:
> + axis_source = "<invalid source value>";
> + break;
> + }
> +
> + printf("axis source: %s\n", axis_source);
> +}
> +
> +static void
> +axis_stop_handler(struct widget *widget, struct input *input,
> + uint32_t time, uint32_t axis,
> + void *data)
> +{
> + printf("axis stop time: %d, axis: %s\n",
> + time,
> + axis == WL_POINTER_AXIS_VERTICAL_SCROLL ? "vertical" :
> + "horizontal");
> +}
> +
> +static void
> +axis_discrete_handler(struct widget *widget, struct input *input,
> + uint32_t axis, int32_t discrete, void *data)
> +{
> + printf("axis discrete axis: %d value: %d\n", axis, discrete);
> +}
> +
> /**
> * \brief CALLBACK function, Waylands informs about pointer motion
> * \param widget widget
> @@ -347,8 +395,15 @@ eventdemo_create(struct display *d)
> /* Set the callback motion handler for the window */
> widget_set_motion_handler(e->widget, motion_handler);
>
> + /* Set the callback pointer frame handler for the window */
> + widget_set_pointer_frame_handler(e->widget, pointer_frame_handler);
> +
> /* Set the callback axis handler for the window */
> - widget_set_axis_handler(e->widget, axis_handler);
> + widget_set_axis_handlers(e->widget,
> + axis_handler,
> + axis_source_handler,
> + axis_stop_handler,
> + axis_discrete_handler);
>
> /* Initial drawing of the window */
> window_schedule_resize(e->window, width, height);
> diff --git a/clients/window.c b/clients/window.c
> index 5d69116..7d45acd 100644
> --- a/clients/window.c
> +++ b/clients/window.c
> @@ -282,6 +282,10 @@ struct widget {
> widget_touch_frame_handler_t touch_frame_handler;
> widget_touch_cancel_handler_t touch_cancel_handler;
> widget_axis_handler_t axis_handler;
> + widget_pointer_frame_handler_t pointer_frame_handler;
> + widget_axis_source_handler_t axis_source_handler;
> + widget_axis_stop_handler_t axis_stop_handler;
> + widget_axis_discrete_handler_t axis_discrete_handler;
> void *user_data;
> int opaque;
> int tooltip_count;
> @@ -1930,6 +1934,26 @@ widget_set_axis_handler(struct widget *widget,
> widget->axis_handler = handler;
> }
>
> +void
> +widget_set_pointer_frame_handler(struct widget *widget,
> + widget_pointer_frame_handler_t handler)
> +{
> + widget->pointer_frame_handler = handler;
> +}
> +
> +void
> +widget_set_axis_handlers(struct widget *widget,
> + widget_axis_handler_t axis_handler,
> + widget_axis_source_handler_t axis_source_handler,
> + widget_axis_stop_handler_t axis_stop_handler,
> + widget_axis_discrete_handler_t axis_discrete_handler)
> +{
> + widget->axis_handler = axis_handler;
> + widget->axis_source_handler = axis_source_handler;
> + widget->axis_stop_handler = axis_stop_handler;
> + widget->axis_discrete_handler = axis_discrete_handler;
> +}
> +
> static void
> window_schedule_redraw_task(struct window *window);
>
> @@ -2780,12 +2804,83 @@ pointer_handle_axis(void *data, struct wl_pointer *pointer,
> widget->user_data);
> }
>
> +static void
> +pointer_handle_frame(void *data, struct wl_pointer *pointer)
> +{
> + struct input *input = data;
> + struct widget *widget;
> +
> + widget = input->focus_widget;
> + if (input->grab)
> + widget = input->grab;
> + if (widget && widget->pointer_frame_handler)
> + (*widget->pointer_frame_handler)(widget,
> + input,
> + widget->user_data);
> +}
> +
> +static void
> +pointer_handle_axis_source(void *data, struct wl_pointer *pointer,
> + uint32_t source)
> +{
> + struct input *input = data;
> + struct widget *widget;
> +
> + widget = input->focus_widget;
> + if (input->grab)
> + widget = input->grab;
> + if (widget && widget->axis_source_handler)
> + (*widget->axis_source_handler)(widget,
> + input,
> + source,
> + widget->user_data);
> +}
> +
> +static void
> +pointer_handle_axis_stop(void *data, struct wl_pointer *pointer,
> + uint32_t time, uint32_t axis)
> +{
> + struct input *input = data;
> + struct widget *widget;
> +
> + widget = input->focus_widget;
> + if (input->grab)
> + widget = input->grab;
> + if (widget && widget->axis_stop_handler)
> + (*widget->axis_stop_handler)(widget,
> + input, time,
> + axis,
> + widget->user_data);
> +}
> +
> +static void
> +pointer_handle_axis_discrete(void *data, struct wl_pointer *pointer,
> + uint32_t axis, int32_t discrete)
> +{
> + struct input *input = data;
> + struct widget *widget;
> +
> + widget = input->focus_widget;
> + if (input->grab)
> + widget = input->grab;
> + if (widget && widget->axis_discrete_handler)
> + (*widget->axis_discrete_handler)(widget,
> + input,
> + axis,
> + discrete,
> + widget->user_data);
> +}
> +
> static const struct wl_pointer_listener pointer_listener = {
> pointer_handle_enter,
> pointer_handle_leave,
> pointer_handle_motion,
> pointer_handle_button,
> pointer_handle_axis,
> + pointer_handle_frame,
> + pointer_handle_axis_source,
> + pointer_handle_axis_stop,
> + pointer_handle_axis_discrete,
> };
>
> static void
> @@ -5178,7 +5273,7 @@ static void
> display_add_input(struct display *d, uint32_t id, int display_seat_version)
> {
> struct input *input;
> - int seat_version = MIN(display_seat_version, 4);
> + int seat_version = MIN(display_seat_version, 5);
>
> input = xzalloc(sizeof *input);
> input->display = d;
> diff --git a/clients/window.h b/clients/window.h
> index b92d10c..ba843cc 100644
> --- a/clients/window.h
> +++ b/clients/window.h
> @@ -267,6 +267,27 @@ typedef void (*widget_axis_handler_t)(struct widget *widget,
> wl_fixed_t value,
> void *data);
>
> +typedef void (*widget_pointer_frame_handler_t)(struct widget *widget,
> + struct input *input,
> + void *data);
> +
> +typedef void (*widget_axis_source_handler_t)(struct widget *widget,
> + struct input *input,
> + uint32_t source,
> + void *data);
> +
> +typedef void (*widget_axis_stop_handler_t)(struct widget *widget,
> + struct input *input,
> + uint32_t time,
> + uint32_t axis,
> + void *data);
> +
> +typedef void (*widget_axis_discrete_handler_t)(struct widget *widget,
> + struct input *input,
> + uint32_t axis,
> + int32_t discrete,
> + void *data);
> +
> struct window *
> window_create(struct display *display);
> struct window *
> @@ -516,6 +537,16 @@ void
> widget_set_axis_handler(struct widget *widget,
> widget_axis_handler_t handler);
> void
> +widget_set_pointer_frame_handler(struct widget *widget,
> + widget_pointer_frame_handler_t handler);
> +void
> +widget_set_axis_handlers(struct widget *widget,
> + widget_axis_handler_t axis_handler,
> + widget_axis_source_handler_t axis_source_handler,
> + widget_axis_stop_handler_t axis_stop_handler,
> + widget_axis_discrete_handler_t axis_discrete_handler);
> +
> +void
> widget_schedule_redraw(struct widget *widget);
> void
> widget_set_use_cairo(struct widget *widget, int use_cairo);
> diff --git a/desktop-shell/exposay.c b/desktop-shell/exposay.c
> index f837859..7aa7630 100644
> --- a/desktop-shell/exposay.c
> +++ b/desktop-shell/exposay.c
> @@ -392,6 +392,16 @@ exposay_axis(struct weston_pointer_grab *grab,
> }
>
> static void
> +exposay_axis_source(struct weston_pointer_grab *grab, uint32_t source)
> +{
> +}
> +
> +static void
> +exposay_frame(struct weston_pointer_grab *grab)
> +{
> +}
> +
> +static void
> exposay_pointer_grab_cancel(struct weston_pointer_grab *grab)
> {
> struct desktop_shell *shell =
> @@ -405,6 +415,8 @@ static const struct weston_pointer_grab_interface exposay_ptr_grab = {
> exposay_motion,
> exposay_button,
> exposay_axis,
> + exposay_axis_source,
> + exposay_frame,
> exposay_pointer_grab_cancel,
> };
>
> diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
> index 8d168ea..14853bf 100644
> --- a/desktop-shell/shell.c
> +++ b/desktop-shell/shell.c
> @@ -1598,6 +1598,17 @@ noop_grab_axis(struct weston_pointer_grab *grab,
> }
>
> static void
> +noop_grab_axis_source(struct weston_pointer_grab *grab,
> + uint32_t source)
> +{
> +}
> +
> +static void
> +noop_grab_frame(struct weston_pointer_grab *grab)
> +{
> +}
> +
> +static void
> constrain_position(struct weston_move_grab *move, int *cx, int *cy)
> {
> struct shell_surface *shsurf = move->base.shsurf;
> @@ -1681,6 +1692,8 @@ static const struct weston_pointer_grab_interface move_grab_interface = {
> move_grab_motion,
> move_grab_button,
> noop_grab_axis,
> + noop_grab_axis_source,
> + noop_grab_frame,
> move_grab_cancel,
> };
>
> @@ -1845,6 +1858,8 @@ static const struct weston_pointer_grab_interface resize_grab_interface = {
> resize_grab_motion,
> resize_grab_button,
> noop_grab_axis,
> + noop_grab_axis_source,
> + noop_grab_frame,
> resize_grab_cancel,
> };
>
> @@ -2010,6 +2025,8 @@ static const struct weston_pointer_grab_interface busy_cursor_grab_interface = {
> busy_cursor_grab_motion,
> busy_cursor_grab_button,
> noop_grab_axis,
> + noop_grab_axis_source,
> + noop_grab_frame,
> busy_cursor_grab_cancel,
> };
>
> @@ -3208,6 +3225,18 @@ popup_grab_axis(struct weston_pointer_grab *grab,
> }
>
> static void
> +popup_grab_axis_source(struct weston_pointer_grab *grab, uint32_t source)
> +{
> + weston_pointer_send_axis_source(grab->pointer, source);
> +}
> +
> +static void
> +popup_grab_frame(struct weston_pointer_grab *grab)
> +{
> + weston_pointer_send_frame(grab->pointer);
> +}
> +
> +static void
> popup_grab_cancel(struct weston_pointer_grab *grab)
> {
> popup_grab_end(grab->pointer);
> @@ -3218,6 +3247,8 @@ static const struct weston_pointer_grab_interface popup_grab_interface = {
> popup_grab_motion,
> popup_grab_button,
> popup_grab_axis,
> + popup_grab_axis_source,
> + popup_grab_frame,
> popup_grab_cancel,
> };
>
> @@ -4921,6 +4952,8 @@ static const struct weston_pointer_grab_interface rotate_grab_interface = {
> rotate_grab_motion,
> rotate_grab_button,
> noop_grab_axis,
> + noop_grab_axis_source,
> + noop_grab_frame,
> rotate_grab_cancel,
> };
>
> diff --git a/ivi-shell/hmi-controller.c b/ivi-shell/hmi-controller.c
> index 354fa4d..15e4bda 100644
> --- a/ivi-shell/hmi-controller.c
> +++ b/ivi-shell/hmi-controller.c
> @@ -1331,6 +1331,19 @@ pointer_default_grab_axis(struct weston_pointer_grab *grab,
> }
>
> static void
> +pointer_default_grab_axis_source(struct weston_pointer_grab *grab,
> + uint32_t source)
> +{
> + weston_pointer_send_axis_source(grab->pointer, source);
> +}
> +
> +static void
> +pointer_default_grab_frame(struct weston_pointer_grab *grab)
> +{
> + weston_pointer_send_frame(grab->pointer);
> +}
> +
> +static void
> move_grab_update(struct move_grab *move, wl_fixed_t pointer[2])
> {
> struct timespec timestamp = {0};
> @@ -1477,6 +1490,8 @@ static const struct weston_pointer_grab_interface pointer_move_grab_workspace_in
> pointer_move_grab_motion,
> pointer_move_workspace_grab_button,
> pointer_default_grab_axis,
> + pointer_default_grab_axis_source,
> + pointer_default_grab_frame,
> pointer_move_workspace_grab_cancel
> };
>
> diff --git a/src/compositor-wayland.c b/src/compositor-wayland.c
> index f94d166..9ee74c6 100644
> --- a/src/compositor-wayland.c
> +++ b/src/compositor-wayland.c
> @@ -181,6 +181,8 @@ struct wayland_input {
>
> struct wayland_output *output;
> struct wayland_output *keyboard_focus;
> +
> + struct weston_pointer_axis_event vert, horiz;
> };
>
> struct gl_renderer_interface *gl_renderer;
> @@ -1432,15 +1434,76 @@ input_handle_axis(void *data, struct wl_pointer *pointer,
> weston_event.axis = axis;
> weston_event.value = value;
>
> + if (axis == WL_POINTER_AXIS_VERTICAL_SCROLL &&
> + input->vert.has_discrete) {
> + weston_event.has_discrete = true;
> + weston_event.discrete = input->vert.discrete;
> + input->vert.has_discrete = false;
> + } else if (axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL &&
> + input->horiz.has_discrete) {
> + weston_event.has_discrete = true;
> + weston_event.discrete = input->horiz.discrete;
> + input->horiz.has_discrete = false;
> + }
> +
> notify_axis(&input->base, time, &weston_event);
> }
>
> +static void
> +input_handle_frame(void *data, struct wl_pointer *pointer)
> +{
> + struct wayland_input *input = data;
> +
> + notify_pointer_frame(&input->base);
> +}
> +
> +static void
> +input_handle_axis_source(void *data, struct wl_pointer *pointer,
> + uint32_t source)
> +{
> + struct wayland_input *input = data;
> +
> + notify_axis_source(&input->base, source);
> +}
> +
> +static void
> +input_handle_axis_stop(void *data, struct wl_pointer *pointer,
> + uint32_t time, uint32_t axis)
> +{
> + struct wayland_input *input = data;
> + struct weston_pointer_axis_event weston_event;
> +
> + weston_event.axis = axis;
> + weston_event.value = 0;
> +
> + notify_axis(&input->base, time, &weston_event);
> +}
> +
> +static void
> +input_handle_axis_discrete(void *data, struct wl_pointer *pointer,
> + uint32_t axis, int32_t discrete)
> +{
> + struct wayland_input *input = data;
> +
> + if (axis == WL_POINTER_AXIS_VERTICAL_SCROLL) {
> + input->vert.has_discrete = true;
> + input->vert.discrete = discrete;
> + } else if (axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL) {
> + input->horiz.has_discrete = true;
> + input->horiz.discrete = discrete;
> + }
> +}
> +
> static const struct wl_pointer_listener pointer_listener = {
> input_handle_pointer_enter,
> input_handle_pointer_leave,
> input_handle_motion,
> input_handle_button,
> input_handle_axis,
> + input_handle_frame,
> + input_handle_axis_source,
> + input_handle_axis_stop,
> + input_handle_axis_discrete,
> };
>
> static void
> @@ -1680,6 +1743,9 @@ display_add_seat(struct wayland_backend *b, uint32_t id, uint32_t version)
>
> input->parent.cursor.surface =
> wl_compositor_create_surface(b->parent.compositor);
> +
> + input->vert.axis = WL_POINTER_AXIS_VERTICAL_SCROLL;
> + input->horiz.axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL;
> }
>
> static void
> diff --git a/src/compositor-x11.c b/src/compositor-x11.c
> index 93018da..44ac078 100644
> --- a/src/compositor-x11.c
> +++ b/src/compositor-x11.c
> @@ -1085,6 +1085,8 @@ x11_backend_deliver_button_event(struct x11_backend *b,
> * steps. Therefore move the axis by some pixels every step. */
> if (state) {
> weston_event.value = -DEFAULT_AXIS_STEP_DISTANCE;
> + weston_event.discrete = -1;
> + weston_event.has_discrete = true;
> weston_event.axis =
> WL_POINTER_AXIS_VERTICAL_SCROLL;
> notify_axis(&b->core_seat,
> @@ -1095,6 +1097,8 @@ x11_backend_deliver_button_event(struct x11_backend *b,
> case 5:
> if (state) {
> weston_event.value = DEFAULT_AXIS_STEP_DISTANCE;
> + weston_event.discrete = 1;
> + weston_event.has_discrete = true;
> weston_event.axis =
> WL_POINTER_AXIS_VERTICAL_SCROLL;
> notify_axis(&b->core_seat,
> @@ -1105,6 +1109,8 @@ x11_backend_deliver_button_event(struct x11_backend *b,
> case 6:
> if (state) {
> weston_event.value = -DEFAULT_AXIS_STEP_DISTANCE;
> + weston_event.discrete = -1;
> + weston_event.has_discrete = true;
> weston_event.axis =
> WL_POINTER_AXIS_HORIZONTAL_SCROLL;
> notify_axis(&b->core_seat,
> @@ -1115,6 +1121,8 @@ x11_backend_deliver_button_event(struct x11_backend *b,
> case 7:
> if (state) {
> weston_event.value = DEFAULT_AXIS_STEP_DISTANCE;
> + weston_event.discrete = 1;
> + weston_event.has_discrete = true;
> weston_event.axis =
> WL_POINTER_AXIS_HORIZONTAL_SCROLL;
> notify_axis(&b->core_seat,
> @@ -1131,6 +1139,7 @@ x11_backend_deliver_button_event(struct x11_backend *b,
> weston_compositor_get_time(), button,
> state ? WL_POINTER_BUTTON_STATE_PRESSED :
> WL_POINTER_BUTTON_STATE_RELEASED);
> + notify_pointer_frame(&b->core_seat);
> }
>
> static void
> @@ -1162,6 +1171,7 @@ x11_backend_deliver_motion_event(struct x11_backend *b,
>
> notify_motion(&b->core_seat, weston_compositor_get_time(),
> &motion_event);
> + notify_pointer_frame(&b->core_seat);
>
> b->prev_x = x;
> b->prev_y = y;
> @@ -1189,6 +1199,7 @@ x11_backend_deliver_enter_event(struct x11_backend *b,
> wl_fixed_from_int(enter_notify->event_y), &x, &y);
>
> notify_pointer_focus(&b->core_seat, &output->base, x, y);
> + notify_pointer_frame(&b->core_seat);
>
> b->prev_x = x;
> b->prev_y = y;
> @@ -1342,6 +1353,7 @@ x11_backend_handle_event(int fd, uint32_t mask, void *data)
>
> case XCB_ENTER_NOTIFY:
> x11_backend_deliver_enter_event(b, event);
> + notify_pointer_frame(&b->core_seat);
> break;
>
> case XCB_LEAVE_NOTIFY:
> @@ -1351,6 +1363,7 @@ x11_backend_handle_event(int fd, uint32_t mask, void *data)
> if (!b->has_xkb)
> update_xkb_state_from_core(b, enter_notify->state);
> notify_pointer_focus(&b->core_seat, NULL, 0, 0);
> + notify_pointer_frame(&b->core_seat);
> break;
>
> case XCB_CLIENT_MESSAGE:
> diff --git a/src/compositor.h b/src/compositor.h
> index bf38784..c9e61a5 100644
> --- a/src/compositor.h
> +++ b/src/compositor.h
> @@ -256,6 +256,8 @@ struct weston_pointer_motion_event {
> struct weston_pointer_axis_event {
> uint32_t axis;
> wl_fixed_t value;
> + bool has_discrete;
> + int32_t discrete;
> };
>
> struct weston_pointer_grab;
> @@ -268,6 +270,8 @@ struct weston_pointer_grab_interface {
> void (*axis)(struct weston_pointer_grab *grab,
> uint32_t time,
> struct weston_pointer_axis_event *event);
> + void (*axis_source)(struct weston_pointer_grab *grab, uint32_t source);
> + void (*frame)(struct weston_pointer_grab *grab);
> void (*cancel)(struct weston_pointer_grab *grab);
> };
>
> @@ -406,6 +410,12 @@ weston_pointer_send_axis(struct weston_pointer *pointer,
> uint32_t time,
> struct weston_pointer_axis_event *event);
> void
> +weston_pointer_send_axis_source(struct weston_pointer *pointer,
> + uint32_t source);
> +void
> +weston_pointer_send_frame(struct weston_pointer *pointer);
> +
> +void
> weston_pointer_set_focus(struct weston_pointer *pointer,
> struct weston_view *view,
> wl_fixed_t sx, wl_fixed_t sy);
> @@ -1143,6 +1153,12 @@ void
> notify_axis(struct weston_seat *seat, uint32_t time,
> struct weston_pointer_axis_event *event);
> void
> +notify_axis_source(struct weston_seat *seat, uint32_t source);
> +
> +void
> +notify_pointer_frame(struct weston_seat *seat);
> +
> +void
> notify_key(struct weston_seat *seat, uint32_t time, uint32_t key,
> enum wl_keyboard_key_state state,
> enum weston_key_state_update update_state);
> diff --git a/src/data-device.c b/src/data-device.c
> index 9bb4472..02a9fa7 100644
> --- a/src/data-device.c
> +++ b/src/data-device.c
> @@ -417,6 +417,16 @@ drag_grab_axis(struct weston_pointer_grab *grab,
> }
>
> static void
> +drag_grab_axis_source(struct weston_pointer_grab *grab, uint32_t source)
> +{
> +}
> +
> +static void
> +drag_grab_frame(struct weston_pointer_grab *grab)
> +{
> +}
> +
> +static void
> drag_grab_cancel(struct weston_pointer_grab *grab)
> {
> struct weston_pointer_drag *drag =
> @@ -433,6 +443,8 @@ static const struct weston_pointer_grab_interface pointer_drag_grab_interface =
> drag_grab_motion,
> drag_grab_button,
> drag_grab_axis,
> + drag_grab_axis_source,
> + drag_grab_frame,
> drag_grab_cancel,
> };
>
> diff --git a/src/input.c b/src/input.c
> index b87c51c..de0fba1 100644
> --- a/src/input.c
> +++ b/src/input.c
> @@ -343,9 +343,51 @@ weston_pointer_send_axis(struct weston_pointer *pointer,
> return;
>
> resource_list = &pointer->focus_client->pointer_resources;
> - wl_resource_for_each(resource, resource_list)
> - wl_pointer_send_axis(resource, time,
> - event->axis, event->value);
> + wl_resource_for_each(resource, resource_list) {
> + if (event->has_discrete &&
> + wl_resource_get_version(resource) >=
> + WL_POINTER_AXIS_DISCRETE_SINCE_VERSION)
> + wl_pointer_send_axis_discrete(resource, event->axis,
> + event->discrete);
> +
> + if (event->value)
> + wl_pointer_send_axis(resource, time,
> + event->axis, event->value);
> + else if (wl_resource_get_version(resource) >=
> + WL_POINTER_AXIS_STOP_SINCE_VERSION)
> + wl_pointer_send_axis_stop(resource, time,
> + event->axis);
> + }
> +}
> +
> +WL_EXPORT void
> +weston_pointer_send_axis_source(struct weston_pointer *pointer, uint32_t source)
> +{
> + struct wl_resource *resource;
> + struct wl_list *resource_list;
> +
> + resource_list = &pointer->focus_client->pointer_resources;
> + wl_resource_for_each(resource, resource_list) {
> + if (wl_resource_get_version(resource) >=
> + WL_POINTER_AXIS_SOURCE_SINCE_VERSION) {
> + wl_pointer_send_axis_source(resource, source);
> + }
> + }
> +}
> +
> +WL_EXPORT void
> +weston_pointer_send_frame(struct weston_pointer *pointer)
> +{
> + struct wl_resource *resource;
> + struct wl_list *resource_list;
> +
> + resource_list = &pointer->focus_client->pointer_resources;
> + wl_resource_for_each(resource, resource_list) {
> + if (wl_resource_get_version(resource) >=
> + WL_POINTER_FRAME_SINCE_VERSION) {
> + wl_pointer_send_frame(resource);
> + }
> + }
> }
>
> static void
> @@ -357,6 +399,19 @@ default_grab_pointer_axis(struct weston_pointer_grab *grab,
> }
>
> static void
> +default_grab_pointer_axis_source(struct weston_pointer_grab *grab,
> + uint32_t source)
> +{
> + weston_pointer_send_axis_source(grab->pointer, source);
> +}
> +
> +static void
> +default_grab_pointer_frame(struct weston_pointer_grab *grab)
> +{
> + weston_pointer_send_frame(grab->pointer);
> +}
> +
> +static void
> default_grab_pointer_cancel(struct weston_pointer_grab *grab)
> {
> }
> @@ -367,6 +422,8 @@ static const struct weston_pointer_grab_interface
> default_grab_pointer_motion,
> default_grab_pointer_button,
> default_grab_pointer_axis,
> + default_grab_pointer_axis_source,
> + default_grab_pointer_frame,
> default_grab_pointer_cancel,
> };
>
> @@ -830,6 +887,7 @@ weston_pointer_set_focus(struct weston_pointer *pointer,
> wl_resource_for_each(resource, focus_resource_list) {
> wl_pointer_send_leave(resource, serial,
> surface_resource);
> + wl_pointer_send_frame(resource);
> }
> }
>
> @@ -856,6 +914,7 @@ weston_pointer_set_focus(struct weston_pointer *pointer,
> serial,
> view->surface->resource,
> sx, sy);
> + wl_pointer_send_frame(resource);
> }
>
> pointer->focus_serial = serial;
> @@ -1277,9 +1336,6 @@ notify_axis(struct weston_seat *seat, uint32_t time,
>
> weston_compositor_wake(compositor);
>
> - if (!event->value)
> - return;
> -
> if (weston_compositor_run_axis_binding(compositor, pointer,
> time, event))
> return;
> @@ -1287,6 +1343,28 @@ notify_axis(struct weston_seat *seat, uint32_t time,
> pointer->grab->interface->axis(pointer->grab, time, event);
> }
>
> +WL_EXPORT void
> +notify_axis_source(struct weston_seat *seat, uint32_t source)
> +{
> + struct weston_compositor *compositor = seat->compositor;
> + struct weston_pointer *pointer = weston_seat_get_pointer(seat);
> +
> + weston_compositor_wake(compositor);
> +
> + pointer->grab->interface->axis_source(pointer->grab, source);
> +}
> +
> +WL_EXPORT void
> +notify_pointer_frame(struct weston_seat *seat)
> +{
> + struct weston_compositor *compositor = seat->compositor;
> + struct weston_pointer *pointer = weston_seat_get_pointer(seat);
> +
> + weston_compositor_wake(compositor);
> +
> + pointer->grab->interface->frame(pointer->grab);
> +}
> +
> WL_EXPORT int
> weston_keyboard_set_locks(struct weston_keyboard *keyboard,
> uint32_t mask, uint32_t value)
> @@ -1970,6 +2048,7 @@ seat_get_pointer(struct wl_client *client, struct wl_resource *resource,
> pointer->focus_serial,
> pointer->focus->surface->resource,
> sx, sy);
> + wl_pointer_send_frame(cr);
> }
> }
>
> @@ -2548,7 +2627,7 @@ weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
> wl_signal_init(&seat->destroy_signal);
> wl_signal_init(&seat->updated_caps_signal);
>
> - seat->global = wl_global_create(ec->wl_display, &wl_seat_interface, 4,
> + seat->global = wl_global_create(ec->wl_display, &wl_seat_interface, 5,
> seat, bind_seat);
>
> seat->compositor = ec;
> diff --git a/src/libinput-device.c b/src/libinput-device.c
> index 9860d6e..99b2916 100644
> --- a/src/libinput-device.c
> +++ b/src/libinput-device.c
> @@ -80,7 +80,7 @@ handle_keyboard_key(struct libinput_device *libinput_device,
> STATE_UPDATE_AUTOMATIC);
> }
>
> -static void
> +static bool
> handle_pointer_motion(struct libinput_device *libinput_device,
> struct libinput_event_pointer *pointer_event)
> {
> @@ -97,9 +97,11 @@ handle_pointer_motion(struct libinput_device *libinput_device,
> notify_motion(device->seat,
> libinput_event_pointer_get_time(pointer_event),
> &event);
> +
> + return true;
> }
>
> -static void
> +static bool
> handle_pointer_motion_absolute(
> struct libinput_device *libinput_device,
> struct libinput_event_pointer *pointer_event)
> @@ -112,7 +114,7 @@ handle_pointer_motion_absolute(
> uint32_t width, height;
>
> if (!output)
> - return;
> + return false;
>
> time = libinput_event_pointer_get_time(pointer_event);
> width = device->output->current_mode->width;
> @@ -127,9 +129,11 @@ handle_pointer_motion_absolute(
>
> weston_output_transform_coordinate(device->output, x, y, &x, &y);
> notify_motion_absolute(device->seat, time, x, y);
> +
> + return true;
> }
>
> -static void
> +static bool
> handle_pointer_button(struct libinput_device *libinput_device,
> struct libinput_event_pointer *pointer_event)
> {
> @@ -145,21 +149,21 @@ handle_pointer_button(struct libinput_device *libinput_device,
> seat_button_count != 1) ||
> (button_state == LIBINPUT_BUTTON_STATE_RELEASED &&
> seat_button_count != 0))
> - return;
> + return false;
>
> notify_button(device->seat,
> libinput_event_pointer_get_time(pointer_event),
> libinput_event_pointer_get_button(pointer_event),
> libinput_event_pointer_get_button_state(pointer_event));
> + return true;
> }
>
> static double
> normalize_scroll(struct libinput_event_pointer *pointer_event,
> enum libinput_pointer_axis axis)
> {
> - static int warned;
> enum libinput_pointer_axis_source source;
> - double value;
> + double value = 0.0;
>
> source = libinput_event_pointer_get_axis_source(pointer_event);
> /* libinput < 0.8 sent wheel click events with value 10. Since 0.8
> @@ -178,48 +182,101 @@ normalize_scroll(struct libinput_event_pointer *pointer_event,
> value = libinput_event_pointer_get_axis_value(pointer_event,
> axis);
> break;
> - default:
> - value = 0;
> - if (warned < 5) {
> - weston_log("Unknown scroll source %d. Event discarded\n",
> - source);
> - warned++;
> - }
> - break;
> }
>
> return value;
> }
>
> -static void
> +static int32_t
> +get_axis_discrete(struct libinput_event_pointer *pointer_event,
> + enum libinput_pointer_axis axis)
> +{
> + enum libinput_pointer_axis_source source;
> +
> + source = libinput_event_pointer_get_axis_source(pointer_event);
> +
> + if (source != LIBINPUT_POINTER_AXIS_SOURCE_WHEEL)
> + return 0;
> +
> + return libinput_event_pointer_get_axis_value_discrete(pointer_event,
> + axis);
> +}
> +
> +static bool
> handle_pointer_axis(struct libinput_device *libinput_device,
> struct libinput_event_pointer *pointer_event)
> {
> + static int warned;
> struct evdev_device *device =
> libinput_device_get_user_data(libinput_device);
> - double value;
> + double vert, horiz;
> + int32_t vert_discrete, horiz_discrete;
> enum libinput_pointer_axis axis;
> struct weston_pointer_axis_event weston_event;
> + enum libinput_pointer_axis_source source;
> + uint32_t wl_axis_source;
> + bool has_vert, has_horiz;
> +
> + has_vert = libinput_event_pointer_has_axis(pointer_event,
> + LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL);
> + has_horiz = libinput_event_pointer_has_axis(pointer_event,
> + LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL);
> +
> + if (!has_vert && !has_horiz)
> + return false;
> +
> + source = libinput_event_pointer_get_axis_source(pointer_event);
> + switch (source) {
> + case LIBINPUT_POINTER_AXIS_SOURCE_WHEEL:
> + wl_axis_source = WL_POINTER_AXIS_SOURCE_WHEEL;
> + break;
> + case LIBINPUT_POINTER_AXIS_SOURCE_FINGER:
> + wl_axis_source = WL_POINTER_AXIS_SOURCE_FINGER;
> + break;
> + case LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS:
> + wl_axis_source = WL_POINTER_AXIS_SOURCE_CONTINUOUS;
> + break;
> + default:
> + if (warned < 5) {
> + weston_log("Unknown scroll source %d.\n", source);
> + warned++;
> + }
> + return false;
> + }
> +
> + notify_axis_source(device->seat, wl_axis_source);
> +
> + if (has_vert) {
> + axis = LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL;
> + vert_discrete = get_axis_discrete(pointer_event, axis);
> + vert = normalize_scroll(pointer_event, axis);
>
> - axis = LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL;
> - if (libinput_event_pointer_has_axis(pointer_event, axis)) {
> - value = normalize_scroll(pointer_event, axis);
> - weston_event.value = wl_fixed_from_double(value);
> weston_event.axis = WL_POINTER_AXIS_VERTICAL_SCROLL;
> + weston_event.value = wl_fixed_from_double(vert);
> + weston_event.discrete = vert_discrete;
> + weston_event.has_discrete = (vert_discrete != 0);
> +
> notify_axis(device->seat,
> libinput_event_pointer_get_time(pointer_event),
> &weston_event);
> }
>
> - axis = LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL;
> - if (libinput_event_pointer_has_axis(pointer_event, axis)) {
> - value = normalize_scroll(pointer_event, axis);
> - weston_event.value = wl_fixed_from_double(value);
> + if (has_horiz) {
> + axis = LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL;
> + horiz_discrete = get_axis_discrete(pointer_event, axis);
> + horiz = normalize_scroll(pointer_event, axis);
> +
> weston_event.axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL;
> + weston_event.value = wl_fixed_from_double(horiz);
> + weston_event.discrete = horiz_discrete;
> + weston_event.has_discrete = (horiz_discrete != 0);
> +
> notify_axis(device->seat,
> libinput_event_pointer_get_time(pointer_event),
> &weston_event);
> }
> +
> + return true;
> }
>
> static void
> @@ -296,7 +353,10 @@ evdev_device_process_event(struct libinput_event *event)
> {
> struct libinput_device *libinput_device =
> libinput_event_get_device(event);
> + struct evdev_device *device =
> + libinput_device_get_user_data(libinput_device);
> int handled = 1;
> + bool need_frame = false;
>
> switch (libinput_event_get_type(event)) {
> case LIBINPUT_EVENT_KEYBOARD_KEY:
> @@ -304,21 +364,22 @@ evdev_device_process_event(struct libinput_event *event)
> libinput_event_get_keyboard_event(event));
> break;
> case LIBINPUT_EVENT_POINTER_MOTION:
> - handle_pointer_motion(libinput_device,
> + need_frame = handle_pointer_motion(libinput_device,
> libinput_event_get_pointer_event(event));
> break;
> case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
> - handle_pointer_motion_absolute(
> - libinput_device,
> - libinput_event_get_pointer_event(event));
> + need_frame = handle_pointer_motion_absolute(
> + libinput_device,
> + libinput_event_get_pointer_event(event));
> break;
> case LIBINPUT_EVENT_POINTER_BUTTON:
> - handle_pointer_button(libinput_device,
> + need_frame = handle_pointer_button(libinput_device,
> libinput_event_get_pointer_event(event));
> break;
> case LIBINPUT_EVENT_POINTER_AXIS:
> - handle_pointer_axis(libinput_device,
> - libinput_event_get_pointer_event(event));
> + need_frame = handle_pointer_axis(
> + libinput_device,
> + libinput_event_get_pointer_event(event));
> break;
> case LIBINPUT_EVENT_TOUCH_DOWN:
> handle_touch_down(libinput_device,
> @@ -342,6 +403,9 @@ evdev_device_process_event(struct libinput_event *event)
> libinput_event_get_type(event));
> }
>
> + if (need_frame)
> + notify_pointer_frame(device->seat);
> +
> return handled;
> }
>
> diff --git a/tests/weston-test-client-helper.c b/tests/weston-test-client-helper.c
> index 16786d9..97c4395 100644
> --- a/tests/weston-test-client-helper.c
> +++ b/tests/weston-test-client-helper.c
> @@ -197,12 +197,44 @@ pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
> axis, wl_fixed_to_double(value));
> }
>
> +static void
> +pointer_handle_frame(void *data, struct wl_pointer *wl_pointer)
> +{
> + fprintf(stderr, "test-client: got pointer frame\n");
> +}
> +
> +static void
> +pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
> + uint32_t source)
> +{
> + fprintf(stderr, "test-client: got pointer axis source %u\n", source);
> +}
> +
> +static void
> +pointer_handle_axis_stop(void *data, struct wl_pointer *wl_pointer,
> + uint32_t time, uint32_t axis)
> +{
> + fprintf(stderr, "test-client: got pointer axis stop\n");
> +}
> +
> +static void
> +pointer_handle_axis_discrete(void *data, struct wl_pointer *wl_pointer,
> + uint32_t axis, int32_t value)
> +{
> + fprintf(stderr, "test-client: got pointer axis discrete %u %d\n",
> + axis, value);
> +}
> +
> static const struct wl_pointer_listener pointer_listener = {
> pointer_handle_enter,
> pointer_handle_leave,
> pointer_handle_motion,
> pointer_handle_button,
> pointer_handle_axis,
> + pointer_handle_frame,
> + pointer_handle_axis_source,
> + pointer_handle_axis_stop,
> + pointer_handle_axis_discrete,
> };
>
> static void
> --
> 2.5.0
>
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