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wayland: Implement wl_pointer.axis_source/axis_stop/axis_frame emission

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As per the spec. wl_pointer.axis_source determines the current source of
scroll events, wl_pointer.axis_stop determines when there's no further
scroll events on any axis (Which Clutter sends as dx/dy=0 events).
wl_pointer.axis_frame marks the end of a series of axis_* events.

v2: Updated to v4 of the protocol spec by
    Peter Hutterer <peter.hutterer@who-t.net>
v3: Update to use Clutter API
This commit is contained in:
Carlos Garnacho 2015-09-08 14:32:50 +02:00
parent a5d2555196
commit 74be2e9f94
2 changed files with 37 additions and 1 deletions
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36
src/wayland/meta-wayland-pointer.c
View File

@ -494,10 +494,27 @@ handle_scroll_event (MetaWaylandPointer *pointer,
{
struct wl_resource *resource;
wl_fixed_t x_value = 0, y_value = 0;
enum wl_pointer_axis_source source = -1;
if (clutter_event_is_pointer_emulated (event))
return;
switch (event->scroll.scroll_source)
{
case CLUTTER_SCROLL_SOURCE_WHEEL:
source = WL_POINTER_AXIS_SOURCE_WHEEL;
break;
case CLUTTER_SCROLL_SOURCE_FINGER:
source = WL_POINTER_AXIS_SOURCE_FINGER;
break;
case CLUTTER_SCROLL_SOURCE_CONTINUOUS:
source = WL_POINTER_AXIS_SOURCE_CONTINUOUS;
break;
default:
source = WL_POINTER_AXIS_SOURCE_WHEEL;
break;
}
switch (clutter_event_get_scroll_direction (event))
{
case CLUTTER_SCROLL_UP:
@ -537,12 +554,31 @@ handle_scroll_event (MetaWaylandPointer *pointer,
{
wl_resource_for_each (resource, &pointer->focus_client->pointer_resources)
{
if (wl_resource_get_version (resource) >= WL_POINTER_AXIS_SOURCE_SINCE_VERSION)
wl_pointer_send_axis_source (resource, source);
if (x_value)
wl_pointer_send_axis (resource, clutter_event_get_time (event),
WL_POINTER_AXIS_HORIZONTAL_SCROLL, x_value);
if ((event->scroll.finish_flags & CLUTTER_SCROLL_FINISHED_HORIZONTAL) &&
wl_resource_get_version (resource) >= WL_POINTER_AXIS_STOP_SINCE_VERSION)
wl_pointer_send_axis_stop (resource,
clutter_event_get_time (event),
WL_POINTER_AXIS_HORIZONTAL_SCROLL);
if (y_value)
wl_pointer_send_axis (resource, clutter_event_get_time (event),
WL_POINTER_AXIS_VERTICAL_SCROLL, y_value);
if ((event->scroll.finish_flags & CLUTTER_SCROLL_FINISHED_VERTICAL) &&
wl_resource_get_version (resource) >= WL_POINTER_AXIS_STOP_SINCE_VERSION)
wl_pointer_send_axis_stop (resource,
clutter_event_get_time (event),
WL_POINTER_AXIS_VERTICAL_SCROLL);
if (wl_resource_get_version (resource) >= WL_POINTER_AXIS_SOURCE_SINCE_VERSION)
wl_pointer_send_axis_frame (resource);
}
}
}

2
src/wayland/meta-wayland-versions.h
View File

@ -39,7 +39,7 @@
#define META_WL_DATA_DEVICE_MANAGER_VERSION 2
#define META_XDG_SHELL_VERSION 1
#define META_WL_SHELL_VERSION 1
#define META_WL_SEAT_VERSION 4
#define META_WL_SEAT_VERSION 5
#define META_WL_OUTPUT_VERSION 2
#define META_XSERVER_VERSION 1
#define META_GTK_SHELL_VERSION 2