[PATCH weston 1/3] Introduce pointer lock interface
Giulio Camuffo
giuliocamuffo at gmail.com
Wed Sep 17 12:56:13 PDT 2014
I haven't looked at the implementation yet, just at the protocol, but
isn't _wl_pointer_lock.lock_pointer() returning a new wl_pointer a
problem? Objects should have a unique factory interface, or else the
version of the interface can't be determined.
--
Giulio
2014-09-17 22:39 GMT+03:00 Jonas Ådahl <jadahl at gmail.com>:
> Introduce a pointer lock interface and implementation. The interface
> consists of a global currently called _wl_pointer_lock. It is prefixed
> with an underscore (_) in order to not conflict with a potential
> official protocol in Wayland, and if moving it there, the prefixed
> should be removed.
>
> The protocol works by exposing the global _wl_pointer_lock to the
> client, and when the client wants to lock the pointer, it creates a new
> wl_pointer object using the 'lock_pointer' request. A more detailed
> description of the protocol seen in pointer-lock.xml file.
>
> The interface is based on the W3C pointer lock interface [0].
>
> [0] http://www.w3.org/TR/pointerlock/
>
> Signed-off-by: Jonas Ådahl <jadahl at gmail.com>
> ---
>
> The part of the implementation I'm not very happy with is the internal
> API change: the extra argument in the pointer lock motion callback used
> to determine if the motion event was a result of a relative motion or an
> absolute motion. In this implementation absolute events are simply
> ignored as they don't tend to behave in any sensible way. One could
> generate relative motion events from absolute ones as done from a
> touchpad, but one would need some kind of threshold as there are no
> "touch down" or "touch up" events.
>
> With backends where relative and absolute events are indistinguishable
> (X11, Wayland) is tricker, as there is no way to know whether the event
> is suitable or not. One could also just let the client deal with it
> making "detached" absolute motions just result in very long vectors.
>
>
> Jonas
>
> Makefile.am | 7 +-
> desktop-shell/exposay.c | 2 +-
> desktop-shell/shell.c | 10 +-
> protocol/pointer-lock.xml | 85 ++++++++++++++
> src/compositor.c | 4 +
> src/compositor.h | 21 +++-
> src/input.c | 277 +++++++++++++++++++++++++++++++++++++++++++++-
> 7 files changed, 394 insertions(+), 12 deletions(-)
> create mode 100644 protocol/pointer-lock.xml
>
> diff --git a/Makefile.am b/Makefile.am
> index b2d6893..ed74983 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -79,7 +79,9 @@ nodist_weston_SOURCES = \
> protocol/workspaces-protocol.c \
> protocol/workspaces-server-protocol.h \
> protocol/scaler-protocol.c \
> - protocol/scaler-server-protocol.h
> + protocol/scaler-server-protocol.h \
> + protocol/pointer-lock-protocol.c \
> + protocol/pointer-lock-server-protocol.h
>
> BUILT_SOURCES += $(nodist_weston_SOURCES)
>
> @@ -987,7 +989,8 @@ EXTRA_DIST += \
> protocol/wayland-test.xml \
> protocol/xdg-shell.xml \
> protocol/fullscreen-shell.xml \
> - protocol/scaler.xml
> + protocol/scaler.xml \
> + protocol/pointer-lock.xml
>
> man_MANS = weston.1 weston.ini.5
>
> diff --git a/desktop-shell/exposay.c b/desktop-shell/exposay.c
> index 4b65cbd..d6ec6a1 100644
> --- a/desktop-shell/exposay.c
> +++ b/desktop-shell/exposay.c
> @@ -340,7 +340,7 @@ exposay_focus(struct weston_pointer_grab *grab)
>
> static void
> exposay_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> struct desktop_shell *shell =
> container_of(grab, struct desktop_shell, exposay.grab_ptr);
> diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
> index 3a5a702..35b05d0 100644
> --- a/desktop-shell/shell.c
> +++ b/desktop-shell/shell.c
> @@ -1651,7 +1651,7 @@ constrain_position(struct weston_move_grab *move, int *cx, int *cy)
>
> static void
> move_grab_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> struct weston_move_grab *move = (struct weston_move_grab *) grab;
> struct weston_pointer *pointer = grab->pointer;
> @@ -1772,7 +1772,7 @@ struct weston_resize_grab {
>
> static void
> resize_grab_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> struct weston_resize_grab *resize = (struct weston_resize_grab *) grab;
> struct weston_pointer *pointer = grab->pointer;
> @@ -1981,7 +1981,7 @@ busy_cursor_grab_focus(struct weston_pointer_grab *base)
>
> static void
> busy_cursor_grab_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> weston_pointer_move(grab->pointer, x, y);
> }
> @@ -3063,7 +3063,7 @@ popup_grab_focus(struct weston_pointer_grab *grab)
>
> static void
> popup_grab_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> struct weston_pointer *pointer = grab->pointer;
> struct wl_resource *resource;
> @@ -4649,7 +4649,7 @@ terminate_binding(struct weston_seat *seat, uint32_t time, uint32_t key,
>
> static void
> rotate_grab_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> struct rotate_grab *rotate =
> container_of(grab, struct rotate_grab, base.grab);
> diff --git a/protocol/pointer-lock.xml b/protocol/pointer-lock.xml
> new file mode 100644
> index 0000000..e00ff80
> --- /dev/null
> +++ b/protocol/pointer-lock.xml
> @@ -0,0 +1,85 @@
> +<?xml version="1.0" encoding="UTF-8"?>
> +<protocol name="pointer_lock">
> +
> + <copyright>
> + Copyright © 2013 Intel Corporation
> + Copyright © 2014 Jonas Ådahl
> +
> + Permission to use, copy, modify, distribute, and sell this
> + software and its documentation for any purpose is hereby granted
> + without fee, provided that the above copyright notice appear in
> + all copies and that both that copyright notice and this permission
> + notice appear in supporting documentation, and that the name of
> + the copyright holders not be used in advertising or publicity
> + pertaining to distribution of the software without specific,
> + written prior permission. The copyright holders make no
> + representations about the suitability of this software for any
> + purpose. It is provided "as is" without express or implied
> + warranty.
> +
> + THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
> + SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
> + FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
> + SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
> + AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
> + ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
> + THIS SOFTWARE.
> + </copyright>
> +
> + <interface name="_wl_pointer_lock" version="1">
> + <description summary="lock pointer to a surface">
> + This interface enables clients to lock pointers to a surface in order
> + to only receive relative pointer motion events.
> + </description>
> +
> + <request name="lock_pointer">
> + <description summary="return pointer object">
> + The lock_pointer request lets the client disable pointer
> + motion and request relative motion events.
> +
> + Relative motion events have the same dimension as regular
> + absolute motion events on a non-transformed surface, meaning that
> + a relative motion event (dx, dy) is equivalent to the transition
> + from the absolute coordinate (x y) to (x + dx, y + dy).
> +
> + If the surface where the pointer is locked is transformed in
> + any way (for example shown as a preview, rotated, etc), the
> + motion events of the locked pointer object are sent as if the
> + surface was not transformed.
> +
> + This request initializes the pointer lock and activates it in
> + case the surface is active. If the surface isn't active when
> + the server receives the request, the compositor will activate
> + the pointer_lock when the surface is eventually activated. It's
> + up to the compositor and its shell to decide when a surface is
> + active.
> +
> + The lock_pointer request will create a new wl_pointer object.
> + When the pointer_lock is activated, the original wl_pointer will
> + send a leave event and the pointer_lock wl_pointer object
> + will send an enter event. The enter event will contain the
> + motion delta (0, 0). The wl_pointer object created with this
> + request will always sends relative motion deltas, in contrast
> + with a regular wl_pointer which sends surface local absolute
> + coordinates.
> +
> + The compositor can suspend the pointer_lock at any time, for
> + example when switching to a different application (eg,
> + alt-tab), if a notification pops up or when the screensaver
> + starts. When this happens the pointer lock wl_pointer will
> + send a leave event. When or if the server activates the
> + surface again, the client will receive an enter event again.
> +
> + The client can break the pointer lock at any time by releasing
> + the pointer lock wl_pointer using the wl_pointer.release request.
> +
> + The interface version of the locked wl_pointer object is the same
> + as the original wl_pointer object.
> + </description>
> + <arg name="id" type="new_id" interface="wl_pointer"/>
> + <arg name="surface" type="object" interface="wl_surface"/>
> + <arg name="pointer" type="object" interface="wl_pointer"/>
> + </request>
> + </interface>
> +</protocol>
> diff --git a/src/compositor.c b/src/compositor.c
> index a219766..43b4b95 100644
> --- a/src/compositor.c
> +++ b/src/compositor.c
> @@ -3871,6 +3871,8 @@ weston_compositor_init(struct weston_compositor *ec,
>
> wl_display_init_shm(display);
>
> + init_pointer_lock(ec);
> +
> loop = wl_display_get_event_loop(ec->wl_display);
> ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
> wl_event_source_timer_update(ec->idle_source, ec->idle_time * 1000);
> @@ -3890,6 +3892,8 @@ weston_compositor_shutdown(struct weston_compositor *ec)
> {
> struct weston_output *output, *next;
>
> + destroy_pointer_lock(ec);
> +
> wl_event_source_remove(ec->idle_source);
> if (ec->input_loop_source)
> wl_event_source_remove(ec->input_loop_source);
> diff --git a/src/compositor.h b/src/compositor.h
> index 9611dea..e33e341 100644
> --- a/src/compositor.h
> +++ b/src/compositor.h
> @@ -242,7 +242,8 @@ struct weston_pointer_grab;
> struct weston_pointer_grab_interface {
> void (*focus)(struct weston_pointer_grab *grab);
> void (*motion)(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y);
> + wl_fixed_t x, wl_fixed_t y,
> + int is_relative);
> void (*button)(struct weston_pointer_grab *grab,
> uint32_t time, uint32_t button, uint32_t state);
> void (*cancel)(struct weston_pointer_grab *grab);
> @@ -321,6 +322,7 @@ struct weston_pointer {
> struct wl_listener focus_resource_listener;
> struct wl_signal focus_signal;
> struct wl_signal motion_signal;
> + struct wl_signal destroy_signal;
>
> struct weston_view *sprite;
> struct wl_listener sprite_destroy_listener;
> @@ -663,6 +665,8 @@ struct weston_compositor {
>
> int32_t kb_repeat_rate;
> int32_t kb_repeat_delay;
> +
> + struct wl_global *pointer_lock;
> };
>
> struct weston_buffer {
> @@ -899,6 +903,15 @@ struct weston_surface {
> */
> struct wl_list subsurface_list; /* weston_subsurface::parent_link */
> struct wl_list subsurface_list_pending; /* ...::parent_link_pending */
> +
> + struct {
> + struct wl_resource *pointer_resource;
> + struct weston_pointer_grab grab;
> + struct weston_pointer *pointer;
> + struct wl_listener pointer_destroy_listener;
> + struct wl_listener keyboard_focus_listener;
> + struct wl_listener surface_destroy_listener;
> + } pointer_lock;
> };
>
> struct weston_subsurface {
> @@ -1020,6 +1033,12 @@ void
> notify_touch_frame(struct weston_seat *seat);
>
> void
> +init_pointer_lock(struct weston_compositor *compositor);
> +
> +void
> +destroy_pointer_lock(struct weston_compositor *compositor);
> +
> +void
> weston_layer_entry_insert(struct weston_layer_entry *list,
> struct weston_layer_entry *entry);
> void
> diff --git a/src/input.c b/src/input.c
> index 530904d..ffdec49 100644
> --- a/src/input.c
> +++ b/src/input.c
> @@ -33,6 +33,7 @@
>
> #include "../shared/os-compatibility.h"
> #include "compositor.h"
> +#include "protocol/pointer-lock-server-protocol.h"
>
> static void
> empty_region(pixman_region32_t *region)
> @@ -163,7 +164,7 @@ default_grab_pointer_focus(struct weston_pointer_grab *grab)
>
> static void
> default_grab_pointer_motion(struct weston_pointer_grab *grab, uint32_t time,
> - wl_fixed_t x, wl_fixed_t y)
> + wl_fixed_t x, wl_fixed_t y, int rel)
> {
> struct weston_pointer *pointer = grab->pointer;
> struct wl_list *resource_list;
> @@ -472,6 +473,7 @@ weston_pointer_create(struct weston_seat *seat)
> wl_signal_init(&pointer->motion_signal);
> wl_signal_init(&pointer->focus_signal);
> wl_list_init(&pointer->focus_view_listener.link);
> + wl_signal_init(&pointer->destroy_signal);
>
> pointer->sprite_destroy_listener.notify = pointer_handle_sprite_destroy;
>
> @@ -490,6 +492,8 @@ weston_pointer_create(struct weston_seat *seat)
> WL_EXPORT void
> weston_pointer_destroy(struct weston_pointer *pointer)
> {
> + wl_signal_emit(&pointer->destroy_signal, pointer);
> +
> if (pointer->sprite)
> pointer_unmap_sprite(pointer);
>
> @@ -943,7 +947,8 @@ notify_motion(struct weston_seat *seat,
> struct weston_pointer *pointer = seat->pointer;
>
> weston_compositor_wake(ec);
> - pointer->grab->interface->motion(pointer->grab, time, pointer->x + dx, pointer->y + dy);
> + pointer->grab->interface->motion(pointer->grab, time,
> + pointer->x + dx, pointer->y + dy, 1);
> }
>
> static void
> @@ -990,7 +995,7 @@ notify_motion_absolute(struct weston_seat *seat,
> struct weston_pointer *pointer = seat->pointer;
>
> weston_compositor_wake(ec);
> - pointer->grab->interface->motion(pointer->grab, time, x, y);
> + pointer->grab->interface->motion(pointer->grab, time, x, y, 0);
> }
>
> WL_EXPORT void
> @@ -2309,3 +2314,269 @@ weston_seat_release(struct weston_seat *seat)
>
> wl_signal_emit(&seat->destroy_signal, seat);
> }
> +
> +static void
> +pointer_lock_grab_pointer_focus(struct weston_pointer_grab *grab)
> +{
> +}
> +
> +static void
> +pointer_lock_grab_pointer_motion(struct weston_pointer_grab *grab,
> + uint32_t time,
> + wl_fixed_t x, wl_fixed_t y, int rel)
> +{
> + struct weston_surface *surface =
> + container_of(grab, struct weston_surface, pointer_lock.grab);
> + struct weston_pointer *pointer = surface->pointer_lock.grab.pointer;
> + wl_fixed_t dx, dy;
> +
> + /* Ignore motion events from non-relative sources. */
> + if (!rel)
> + return;
> +
> + dx = x - pointer->x;
> + dy = y - pointer->y;
> + wl_pointer_send_motion(surface->pointer_lock.pointer_resource,
> + time, dx, dy);
> +}
> +
> +static void
> +pointer_lock_grab_pointer_button(struct weston_pointer_grab *grab,
> + uint32_t time, uint32_t button, uint32_t state)
> +{
> + struct weston_surface *surface =
> + container_of(grab, struct weston_surface, pointer_lock.grab);
> + struct wl_resource *resource = surface->pointer_lock.pointer_resource;
> + uint32_t serial;
> +
> + serial = wl_display_next_serial(surface->compositor->wl_display);
> + wl_pointer_send_button(resource, serial, time, button, state);
> +}
> +
> +static void
> +pointer_lock_grab_pointer_cancel(struct weston_pointer_grab *grab)
> +{
> +}
> +
> +static const struct weston_pointer_grab_interface
> + pointer_lock_grab_interface = {
> + pointer_lock_grab_pointer_focus,
> + pointer_lock_grab_pointer_motion,
> + pointer_lock_grab_pointer_button,
> + pointer_lock_grab_pointer_cancel,
> +};
> +
> +static void
> +pointer_lock_pointer_set_cursor(struct wl_client *client,
> + struct wl_resource *resource,
> + uint32_t serial,
> + struct wl_resource *surface_resource,
> + int32_t x, int32_t y)
> +{
> +}
> +
> +static void
> +pointer_lock_pointer_release(struct wl_client *client,
> + struct wl_resource *resource)
> +{
> + wl_resource_destroy(resource);
> +}
> +
> +static const struct wl_pointer_interface pointer_lock_pointer_interface = {
> + pointer_lock_pointer_set_cursor,
> + pointer_lock_pointer_release
> +};
> +
> +static void
> +lock_pointer(struct weston_surface *surface, struct weston_pointer *pointer)
> +{
> + struct weston_compositor *compositor = surface->compositor;
> + uint32_t serial;
> +
> + if (surface->pointer_lock.pointer->focus == surface)
> + return;
> +
> + weston_pointer_set_focus(pointer, NULL, 0, 0);
> +
> + serial = wl_display_next_serial(compositor->wl_display);
> + wl_pointer_send_enter(surface->pointer_lock.pointer_resource,
> + serial,
> + surface->resource,
> + 0, 0);
> +
> + if (pointer->sprite)
> + pointer_unmap_sprite(pointer);
> +
> + weston_pointer_start_grab(pointer, &surface->pointer_lock.grab);
> +}
> +
> +static void
> +unlock_pointer(struct weston_surface *surface)
> +{
> + struct weston_compositor *compositor = surface->compositor;
> + uint32_t serial;
> +
> + if (surface->pointer_lock.pointer->focus != surface)
> + return;
> +
> + serial = wl_display_next_serial(compositor->wl_display);
> + wl_pointer_send_leave(surface->pointer_lock.pointer_resource,
> + serial, surface->resource);
> + weston_pointer_end_grab(surface->pointer_lock.grab.pointer);
> +}
> +
> +static void
> +start_pointer_lock(struct weston_surface *surface,
> + struct weston_pointer *pointer)
> +{
> + struct weston_seat *seat = pointer->seat;
> + struct wl_listener *keyboard_focus_listener =
> + &surface->pointer_lock.keyboard_focus_listener;
> +
> + surface->pointer_lock.pointer = pointer;
> +
> + wl_signal_add(&seat->pointer->destroy_signal,
> + &surface->pointer_lock.pointer_destroy_listener);
> + wl_signal_add(&surface->destroy_signal,
> + &surface->pointer_lock.surface_destroy_listener);
> +
> + if (seat->keyboard) {
> + wl_signal_add(&seat->keyboard->focus_signal,
> + keyboard_focus_listener);
> + } else {
> + wl_list_init(&keyboard_focus_listener->link);
> + }
> +
> + if (seat->keyboard->focus == surface)
> + lock_pointer(surface, pointer);
> +}
> +
> +static void
> +end_pointer_lock(struct weston_surface *surface)
> +{
> + unlock_pointer(surface);
> + surface->pointer_lock.pointer_resource = NULL;
> + surface->pointer_lock.pointer = NULL;
> +
> + wl_list_remove(&surface->pointer_lock.pointer_destroy_listener.link);
> + wl_list_remove(&surface->pointer_lock.keyboard_focus_listener.link);
> + wl_list_remove(&surface->pointer_lock.surface_destroy_listener.link);
> +}
> +
> +static void
> +pointer_lock_resource_destroyed(struct wl_resource *resource)
> +{
> + struct weston_surface *surface = wl_resource_get_user_data(resource);
> +
> + end_pointer_lock(surface);
> +}
> +
> +static void
> +pointer_lock_keyboard_focused(struct wl_listener *listener, void *data)
> +{
> + struct weston_keyboard *keyboard = data;
> + struct weston_surface *surface =
> + container_of(listener, struct weston_surface,
> + pointer_lock.keyboard_focus_listener);
> + struct weston_pointer *pointer = surface->pointer_lock.pointer;
> +
> + if (keyboard->focus == surface)
> + lock_pointer(surface, pointer);
> + else
> + unlock_pointer(surface);
> +}
> +
> +static void
> +pointer_lock_pointer_destroyed(struct wl_listener *listener, void *data)
> +{
> + struct weston_surface *surface =
> + container_of(listener, struct weston_surface,
> + pointer_lock.pointer_destroy_listener);
> +
> + end_pointer_lock(surface);
> +}
> +
> +static void
> +pointer_lock_surface_destroyed(struct wl_listener *listener, void *data)
> +{
> + struct weston_surface *surface =
> + container_of(listener, struct weston_surface,
> + pointer_lock.surface_destroy_listener);
> +
> + end_pointer_lock(surface);
> +}
> +
> +static void
> +pointer_lock_lock_pointer(struct wl_client *client,
> + struct wl_resource *resource,
> + uint32_t id,
> + struct wl_resource *surface_resource,
> + struct wl_resource *pointer_resource)
> +{
> + struct weston_pointer *pointer =
> + wl_resource_get_user_data(pointer_resource);
> + struct weston_surface *surface;
> + struct wl_resource *cr;
> +
> + surface = wl_resource_get_user_data(surface_resource);
> + if (surface->pointer_lock.pointer_resource) {
> + wl_resource_post_error(resource,
> + WL_DISPLAY_ERROR_INVALID_OBJECT,
> + "pointer already locked");
> + return;
> + }
> +
> + cr = wl_resource_create(client, &wl_pointer_interface,
> + wl_resource_get_version(pointer_resource), id);
> + if (cr == NULL) {
> + wl_client_post_no_memory(client);
> + return;
> + }
> +
> + wl_resource_set_implementation(cr, &pointer_lock_pointer_interface,
> + surface,
> + pointer_lock_resource_destroyed);
> +
> + surface->pointer_lock.pointer_resource = cr;
> + surface->pointer_lock.grab.interface = &pointer_lock_grab_interface;
> + surface->pointer_lock.pointer_destroy_listener.notify =
> + pointer_lock_pointer_destroyed;
> + surface->pointer_lock.keyboard_focus_listener.notify =
> + pointer_lock_keyboard_focused;
> + surface->pointer_lock.surface_destroy_listener.notify =
> + pointer_lock_surface_destroyed;
> +
> + start_pointer_lock(surface, pointer);
> +}
> +
> +static const struct _wl_pointer_lock_interface pointer_lock_interface = {
> + pointer_lock_lock_pointer
> +};
> +
> +static void
> +bind_pointer_lock(struct wl_client *client, void *data,
> + uint32_t version, uint32_t id)
> +{
> + struct wl_resource *resource;
> +
> + resource = wl_resource_create(client, &_wl_pointer_lock_interface,
> + 1, id);
> + wl_resource_set_implementation(resource, &pointer_lock_interface,
> + NULL, NULL);
> +}
> +
> +void
> +init_pointer_lock(struct weston_compositor *compositor)
> +{
> + compositor->pointer_lock =
> + wl_global_create(compositor->wl_display,
> + &_wl_pointer_lock_interface, 1,
> + NULL,
> + bind_pointer_lock);
> +}
> +
> +void
> +destroy_pointer_lock(struct weston_compositor *compositor)
> +{
> + wl_global_destroy(compositor->pointer_lock);
> +}
> --
> 1.8.5.1
>
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