1
0
Fork 0
mirror of https://github.com/Cloudef/bemenu synced 2024-06-13 13:06:51 +02:00

Port to wlroots layer shell

This commit is contained in:
Drew DeVault 2018-04-08 11:05:20 -04:00
parent 81e851369a
commit 17aa5e21bf
7 changed files with 1240 additions and 485 deletions

View File

@ -5,9 +5,10 @@ FIND_PACKAGE(XKBCommon)
if (WAYLAND_FOUND AND CAIRO_FOUND AND PANGO_FOUND AND XKBCOMMON_FOUND)
INCLUDE(Wayland)
WAYLAND_ADD_PROTOCOL_CLIENT(proto-layer-shell "wlr-layer-shell-unstable-v1.xml" layer-shell)
WAYLAND_ADD_PROTOCOL_CLIENT(proto-xdg-shell "xdg-shell.xml" xdg-shell)
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR} ${WAYLAND_CLIENT_INCLUDE_DIR} ${XKBCOMMON_INCLUDE_DIR} ${CAIRO_INCLUDE_DIRS} ${PANGO_INCLUDE_DIRS})
ADD_LIBRARY(bemenu-renderer-wayland SHARED wayland.c registry.c window.c ${proto-xdg-shell})
ADD_LIBRARY(bemenu-renderer-wayland SHARED wayland.c registry.c window.c ${proto-layer-shell} ${proto-xdg-shell})
SET_TARGET_PROPERTIES(bemenu-renderer-wayland PROPERTIES PREFIX "")
TARGET_LINK_LIBRARIES(bemenu-renderer-wayland ${BEMENU_LIBRARIES} ${WAYLAND_CLIENT_LIBRARIES} ${XKBCOMMON_LIBRARIES} ${CAIRO_LIBRARIES} ${PANGO_LIBRARIES} m)
INSTALL(TARGETS bemenu-renderer-wayland DESTINATION "${CMAKE_INSTALL_LIBDIR}/bemenu")

View File

@ -26,17 +26,6 @@ const enum mod_bit BM_XKB_MODS[MASK_LAST] = {
MOD_MOD5
};
static void
xdg_shell_ping(void *data, struct xdg_shell *shell, uint32_t serial)
{
(void)data;
xdg_shell_pong(shell, serial);
}
static const struct xdg_shell_listener xdg_shell_listener = {
.ping = xdg_shell_ping,
};
static void
shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
{
@ -260,12 +249,11 @@ display_handle_scale(void *data, struct wl_output *wl_output, int32_t scale)
static void
display_handle_mode(void *data, struct wl_output *wl_output, uint32_t flags, int width, int height, int refresh)
{
(void)wl_output, (void)refresh, (void)height;
struct wayland *wayland = data;
(void)wl_output, (void)refresh, (void)height, (void)width;
struct output *output = data;
if (flags & WL_OUTPUT_MODE_CURRENT) {
wayland->window.width = width;
wayland->window.max_height = height;
output->height = height;
}
}
@ -284,12 +272,8 @@ registry_handle_global(void *data, struct wl_registry *registry, uint32_t id, co
if (strcmp(interface, "wl_compositor") == 0) {
wayland->compositor = wl_registry_bind(registry, id, &wl_compositor_interface, 1);
} else if (strcmp(interface, "xdg_shell") == 0) {
wayland->xdg_shell = wl_registry_bind(registry, id, &xdg_shell_interface, 1);
xdg_shell_use_unstable_version(wayland->xdg_shell, XDG_SHELL_VERSION_CURRENT);
xdg_shell_add_listener(wayland->xdg_shell, &xdg_shell_listener, data);
} else if (strcmp(interface, "wl_shell") == 0) {
wayland->shell = wl_registry_bind(registry, id, &wl_shell_interface, 1);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
wayland->layer_shell = wl_registry_bind(registry, id, &zwlr_layer_shell_v1_interface, 1);
} else if (strcmp(interface, "wl_seat") == 0) {
wayland->seat = wl_registry_bind(registry, id, &wl_seat_interface, 1);
wl_seat_add_listener(wayland->seat, &seat_listener, &wayland->input);
@ -297,8 +281,11 @@ registry_handle_global(void *data, struct wl_registry *registry, uint32_t id, co
wayland->shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
wl_shm_add_listener(wayland->shm, &shm_listener, data);
} else if (strcmp(interface, "wl_output") == 0) {
wayland->output = wl_registry_bind(registry, id, &wl_output_interface, 2);
wl_output_add_listener(wayland->output, &output_listener, wayland);
struct wl_output *wl_output = wl_registry_bind(registry, id, &wl_output_interface, 2);
struct output *output = calloc(1, sizeof(struct output));
output->output = wl_output;
wl_list_insert(&wayland->outputs, &output->link);
wl_output_add_listener(wl_output, &output_listener, output);
}
}
@ -334,11 +321,8 @@ bm_wl_registry_destroy(struct wayland *wayland)
if (wayland->shm)
wl_shm_destroy(wayland->shm);
if (wayland->shell)
wl_shell_destroy(wayland->shell);
if (wayland->xdg_shell)
xdg_shell_destroy(wayland->xdg_shell);
if (wayland->layer_shell)
zwlr_layer_shell_v1_destroy(wayland->layer_shell);
if (wayland->compositor)
wl_compositor_destroy(wayland->compositor);
@ -358,9 +342,11 @@ bm_wl_registry_register(struct wayland *wayland)
if (!(wayland->registry = wl_display_get_registry(wayland->display)))
return false;
wl_list_init(&wayland->outputs);
wl_list_init(&wayland->windows);
wl_registry_add_listener(wayland->registry, &registry_listener, wayland);
wl_display_roundtrip(wayland->display); // trip 1, registry globals
if (!wayland->compositor || !wayland->seat || !wayland->shm || !(wayland->shell || wayland->xdg_shell))
if (!wayland->compositor || !wayland->seat || !wayland->shm || !wayland->layer_shell)
return false;
wl_display_roundtrip(wayland->display); // trip 2, global listeners

View File

@ -38,7 +38,10 @@ render(const struct bm_menu *menu)
}
if (wayland->input.code != wayland->input.last_code) {
bm_wl_window_render(&wayland->window, menu);
struct window *window;
wl_list_for_each(window, &wayland->windows, link) {
bm_wl_window_render(window, menu);
}
wayland->input.last_code = wayland->input.code;
}
}
@ -165,7 +168,13 @@ get_displayed_count(const struct bm_menu *menu)
{
struct wayland *wayland = menu->renderer->internal;
assert(wayland);
return wayland->window.displayed;
uint32_t max = 0;
struct window *window;
wl_list_for_each(window, &wayland->windows, link) {
if (window->displayed > max)
max = window->displayed;
}
return max;
}
static void
@ -176,7 +185,10 @@ destructor(struct bm_menu *menu)
if (!wayland)
return;
bm_wl_window_destroy(&wayland->window);
struct window *window;
wl_list_for_each(window, &wayland->windows, link) {
bm_wl_window_destroy(window);
}
bm_wl_registry_destroy(wayland);
xkb_context_unref(wayland->input.xkb.context);
@ -203,9 +215,6 @@ constructor(struct bm_menu *menu)
if (!(menu->renderer->internal = wayland = calloc(1, sizeof(struct wayland))))
goto fail;
wayland->window.width = 800;
wayland->window.height = 1;
if (!(wayland->display = wl_display_connect(NULL)))
goto fail;
@ -215,19 +224,26 @@ constructor(struct bm_menu *menu)
if (!bm_wl_registry_register(wayland))
goto fail;
struct wl_surface *surface;
if (!(surface = wl_compositor_create_surface(wayland->compositor)))
goto fail;
wayland->fds.display = wl_display_get_fd(wayland->display);
wayland->fds.repeat = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC | TFD_NONBLOCK);
wayland->input.repeat_fd = &wayland->fds.repeat;
if (!bm_wl_window_create(&wayland->window, wayland->shm, wayland->shell, wayland->xdg_shell, surface))
goto fail;
struct output *output;
wl_list_for_each(output, &wayland->outputs, link) {
struct wl_surface *surface;
if (!(surface = wl_compositor_create_surface(wayland->compositor)))
goto fail;
struct window *window = calloc(1, sizeof(struct window));
if (!bm_wl_window_create(window, wayland->display, wayland->shm, output->output, wayland->layer_shell, surface))
goto fail;
window->notify.render = bm_cairo_paint;
window->max_height = output->height;
wl_list_insert(&wayland->windows, &window->link);
}
if (!efd && (efd = epoll_create(EPOLL_CLOEXEC)) < 0)
goto fail;
wayland->fds.display = wl_display_get_fd(wayland->display);
wayland->fds.repeat = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC | TFD_NONBLOCK);
struct epoll_event ep;
ep.events = EPOLLIN | EPOLLERR | EPOLLHUP;
ep.data.ptr = &wayland->fds.display;
@ -237,9 +253,6 @@ constructor(struct bm_menu *menu)
ep2.events = EPOLLIN;
ep2.data.ptr = &wayland->fds.repeat;
epoll_ctl(efd, EPOLL_CTL_ADD, wayland->fds.repeat, &ep2);
wayland->window.notify.render = bm_cairo_paint;
wayland->input.repeat_fd = &wayland->fds.repeat;
return true;
fail:

View File

@ -4,7 +4,7 @@
#include <wayland-client.h>
#include <xkbcommon/xkbcommon.h>
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-layer-shell-client-protocol.h"
#include "renderers/cairo.h"
@ -76,19 +76,25 @@ struct buffer {
struct window {
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
struct wl_callback *frame_cb;
struct xdg_surface *xdg_surface;
struct zwlr_layer_surface_v1 *layer_surface;
struct wl_shm *shm;
struct buffer buffers[2];
uint32_t width, height, max_height;
uint32_t displayed;
struct wl_list link;
struct {
void (*render)(struct cairo *cairo, uint32_t width, uint32_t height, uint32_t max_height, const struct bm_menu *menu, struct cairo_paint_result *result);
} notify;
};
struct output {
struct wl_output *output;
struct wl_list link;
int height;
};
struct wayland {
struct {
int32_t display;
@ -98,13 +104,12 @@ struct wayland {
struct wl_display *display;
struct wl_registry *registry;
struct wl_compositor *compositor;
struct wl_output *output;
struct wl_list outputs;
struct wl_seat *seat;
struct xdg_shell *xdg_shell;
struct wl_shell *shell;
struct zwlr_layer_shell_v1 *layer_shell;
struct wl_shm *shm;
struct input input;
struct window window;
struct wl_list windows;
uint32_t formats;
};
@ -112,7 +117,7 @@ void bm_wl_repeat(struct wayland *wayland);
bool bm_wl_registry_register(struct wayland *wayland);
void bm_wl_registry_destroy(struct wayland *wayland);
void bm_wl_window_render(struct window *window, const struct bm_menu *menu);
bool bm_wl_window_create(struct window *window, struct wl_shm *shm, struct wl_shell *shell, struct xdg_shell *xdg_shell, struct wl_surface *surface);
bool bm_wl_window_create(struct window *window, struct wl_display *display, struct wl_shm *shm, struct wl_output *output, struct zwlr_layer_shell_v1 *layer_shell, struct wl_surface *surface);
void bm_wl_window_destroy(struct window *window);
#endif /* _BM_WAYLAND_H_ */

View File

@ -7,8 +7,6 @@
#include <stdlib.h>
#include <sys/mman.h>
#define USE_XDG_SHELL false
static int
set_cloexec_or_close(int fd)
{
@ -192,49 +190,6 @@ next_buffer(struct window *window)
return buffer;
}
static void
shell_surface_ping(void *data, struct wl_shell_surface *surface, uint32_t serial)
{
(void)data;
wl_shell_surface_pong(surface, serial);
}
static void
shell_surface_configure(void *data, struct wl_shell_surface *surface, uint32_t edges, int32_t width, int32_t height)
{
(void)data, (void)surface, (void)edges, (void)width, (void)height;
}
static void
shell_surface_popup_done(void *data, struct wl_shell_surface *surface)
{
(void)data, (void)surface;
}
static const struct wl_shell_surface_listener shell_surface_listener = {
.ping = shell_surface_ping,
.configure = shell_surface_configure,
.popup_done = shell_surface_popup_done,
};
static void
xdg_surface_configure(void *data, struct xdg_surface *surface, int32_t width, int32_t height, struct wl_array *states, uint32_t serial)
{
(void)data, (void)states, (void)width, (void)height, (void)states, (void)serial;
xdg_surface_ack_configure(surface, serial);
}
static void
xdg_surface_close(void *data, struct xdg_surface *surface)
{
(void)data, (void)surface;
}
static const struct xdg_surface_listener xdg_surface_listener = {
.configure = xdg_surface_configure,
.close = xdg_surface_close,
};
static void
frame_callback(void *data, struct wl_callback *callback, uint32_t time)
{
@ -294,29 +249,48 @@ bm_wl_window_destroy(struct window *window)
for (int32_t i = 0; i < 2; ++i)
destroy_buffer(&window->buffers[i]);
if (window->xdg_surface)
xdg_surface_destroy(window->xdg_surface);
if (window->shell_surface)
wl_shell_surface_destroy(window->shell_surface);
if (window->layer_surface)
zwlr_layer_surface_v1_destroy(window->layer_surface);
if (window->surface)
wl_surface_destroy(window->surface);
}
static void
layer_surface_configure(void *data, struct zwlr_layer_surface_v1 *layer_surface, uint32_t serial, uint32_t width, uint32_t height)
{
struct window *window = data;
window->width = width;
window->height = height;
zwlr_layer_surface_v1_ack_configure(layer_surface, serial);
}
static void
layer_surface_closed(void *data, struct zwlr_layer_surface_v1 *layer_surface)
{
struct window *window = data;
zwlr_layer_surface_v1_destroy(layer_surface);
wl_surface_destroy(window->surface);
exit(1);
}
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
bool
bm_wl_window_create(struct window *window, struct wl_shm *shm, struct wl_shell *shell, struct xdg_shell *xdg_shell, struct wl_surface *surface)
bm_wl_window_create(struct window *window, struct wl_display *display, struct wl_shm *shm, struct wl_output *output, struct zwlr_layer_shell_v1 *layer_shell, struct wl_surface *surface)
{
assert(window);
if (USE_XDG_SHELL && xdg_shell && (window->xdg_surface = xdg_shell_get_xdg_surface(xdg_shell, surface))) {
xdg_surface_add_listener(window->xdg_surface, &xdg_surface_listener, window);
xdg_surface_set_title(window->xdg_surface, "bemenu");
} else if (shell && (window->shell_surface = wl_shell_get_shell_surface(shell, surface))) {
wl_shell_surface_add_listener(window->shell_surface, &shell_surface_listener, window);
wl_shell_surface_set_title(window->shell_surface, "bemenu");
wl_shell_surface_set_class(window->shell_surface, "bemenu");
wl_shell_surface_set_toplevel(window->shell_surface);
if (layer_shell && (window->layer_surface = zwlr_layer_shell_v1_get_layer_surface(layer_shell, surface, output, ZWLR_LAYER_SHELL_V1_LAYER_TOP, "menu"))) {
zwlr_layer_surface_v1_add_listener(window->layer_surface, &layer_surface_listener, window);
zwlr_layer_surface_v1_set_anchor(window->layer_surface, ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT);
zwlr_layer_surface_v1_set_size(window->layer_surface, 0, 32);
zwlr_layer_surface_v1_set_keyboard_interactivity(window->layer_surface, true);
wl_surface_commit(surface);
wl_display_roundtrip(display);
} else {
return false;
}

View File

@ -0,0 +1,281 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_layer_shell_unstable_v1">
<copyright>
Copyright © 2017 Drew DeVault
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="zwlr_layer_shell_v1" version="1">
<description summary="create surfaces that are layers of the desktop">
Clients can use this interface to assign the surface_layer role to
wl_surfaces. Such surfaces are assigned to a "layer" of the output and
rendered with a defined z-depth respective to each other. They may also be
anchored to the edges and corners of a screen and specify input handling
semantics. This interface should be suitable for the implementation of
many desktop shell components, and a broad number of other applications
that interact with the desktop.
</description>
<request name="get_layer_surface">
<description summary="create a layer_surface from a surface">
Create a layer surface for an existing surface. This assigns the role of
layer_surface, or raises a protocol error if another role is already
assigned.
Creating a layer surface from a wl_surface which has a buffer attached
or committed is a client error, and any attempts by a client to attach
or manipulate a buffer prior to the first layer_surface.configure call
must also be treated as errors.
Clients can specify a namespace that defines the purpose of the layer
surface.
</description>
<arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="output" type="object" interface="wl_output"/>
<arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/>
<arg name="namespace" type="string" summary="namespace for the layer surface"/>
</request>
<enum name="error">
<entry name="role" value="0" summary="wl_surface has another role"/>
<entry name="invalid_layer" value="1" summary="layer value is invalid"/>
<entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/>
</enum>
<enum name="layer">
<description summary="available layers for surfaces">
These values indicate which layers a surface can be rendered in. They
are ordered by z depth, bottom-most first. Traditional shell surfaces
will typically be rendered between the bottom and top layers.
Fullscreen shell surfaces are typically rendered at the top layer.
Multiple surfaces can share a single layer, and ordering within a
single layer is undefined.
</description>
<entry name="background" value="0"/>
<entry name="bottom" value="1"/>
<entry name="top" value="2"/>
<entry name="overlay" value="3"/>
</enum>
</interface>
<interface name="zwlr_layer_surface_v1" version="1">
<description summary="layer metadata interface">
An interface that may be implemented by a wl_surface, for surfaces that
are designed to be rendered as a layer of a stacked desktop-like
environment.
Layer surface state (size, anchor, exclusive zone, margin, interactivity)
is double-buffered, and will be applied at the time wl_surface.commit of
the corresponding wl_surface is called.
</description>
<request name="set_size">
<description summary="sets the size of the surface">
Sets the size of the surface in surface-local coordinates. The
compositor will display the surface centered with respect to its
anchors.
If you pass 0 for either value, the compositor will assign it and
inform you of the assignment in the configure event. You must set your
anchor to opposite edges in the dimensions you omit; not doing so is a
protocol error. Both values are 0 by default.
Size is double-buffered, see wl_surface.commit.
</description>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</request>
<request name="set_anchor">
<description summary="configures the anchor point of the surface">
Requests that the compositor anchor the surface to the specified edges
and corners. If two orthoginal edges are specified (e.g. 'top' and
'left'), then the anchor point will be the intersection of the edges
(e.g. the top left corner of the output); otherwise the anchor point
will be centered on that edge, or in the center if none is specified.
Anchor is double-buffered, see wl_surface.commit.
</description>
<arg name="anchor" type="uint" enum="anchor"/>
</request>
<request name="set_exclusive_zone">
<description summary="configures the exclusive geometry of this surface">
Requests that the compositor avoids occluding an area of the surface
with other surfaces. The compositor's use of this information is
implementation-dependent - do not assume that this region will not
actually be occluded.
A positive value is only meaningful if the surface is anchored to an
edge, rather than a corner. The zone is the number of surface-local
coordinates from the edge that are considered exclusive.
Surfaces that do not wish to have an exclusive zone may instead specify
how they should interact with surfaces that do. If set to zero, the
surface indicates that it would like to be moved to avoid occluding
surfaces with a positive excluzive zone. If set to -1, the surface
indicates that it would not like to be moved to accomodate for other
surfaces, and the compositor should extend it all the way to the edges
it is anchored to.
For example, a panel might set its exclusive zone to 10, so that
maximized shell surfaces are not shown on top of it. A notification
might set its exclusive zone to 0, so that it is moved to avoid
occluding the panel, but shell surfaces are shown underneath it. A
wallpaper or lock screen might set their exclusive zone to -1, so that
they stretch below or over the panel.
The default value is 0.
Exclusive zone is double-buffered, see wl_surface.commit.
</description>
<arg name="zone" type="int"/>
</request>
<request name="set_margin">
<description summary="sets a margin from the anchor point">
Requests that the surface be placed some distance away from the anchor
point on the output, in surface-local coordinates. Setting this value
for edges you are not anchored to has no effect.
The exclusive zone includes the margin.
Margin is double-buffered, see wl_surface.commit.
</description>
<arg name="top" type="int"/>
<arg name="right" type="int"/>
<arg name="bottom" type="int"/>
<arg name="left" type="int"/>
</request>
<request name="set_keyboard_interactivity">
<description summary="requests keyboard events">
Set to 1 to request that the seat send keyboard events to this layer
surface. For layers below the shell surface layer, the seat will use
normal focus semantics. For layers above the shell surface layers, the
seat will always give exclusive keyboard focus to the top-most layer
which has keyboard interactivity set to true.
Layer surfaces receive pointer, touch, and tablet events normally. If
you do not want to receive them, set the input region on your surface
to an empty region.
Events is double-buffered, see wl_surface.commit.
</description>
<arg name="keyboard_interactivity" type="uint"/>
</request>
<request name="get_popup">
<description summary="assign this layer_surface as an xdg_popup parent">
This assigns an xdg_popup's parent to this layer_surface. This popup
should have been created via xdg_surface::get_popup with the parent set
to NULL, and this request must be invoked before committing the popup's
initial state.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
</description>
<arg name="popup" type="object" interface="xdg_popup"/>
</request>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
A client may send multiple ack_configure requests before committing, but
only the last request sent before a commit indicates which configure
event the client really is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<request name="destroy" type="destructor">
<description summary="destroy the layer_surface">
This request destroys the layer surface.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to resize its surface.
Clients should arrange their surface for the new states, and then send
an ack_configure request with the serial sent in this configure event at
some point before committing the new surface.
The client is free to dismiss all but the last configure event it
received.
The width and height arguments specify the size of the window in
surface-local coordinates.
The size is a hint, in the sense that the client is free to ignore it if
it doesn't resize, pick a smaller size (to satisfy aspect ratio or
resize in steps of NxM pixels). If the client picks a smaller size and
is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the
surface will be centered on this axis.
If the width or height arguments are zero, it means the client should
decide its own window dimension.
</description>
<arg name="serial" type="uint"/>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</event>
<event name="closed">
<description summary="surface should be closed">
The closed event is sent by the compositor when the surface will no
longer be shown. The output may have been destroyed or the user may
have asked for it to be removed. Further changes to the surface will be
ignored. The client should destroy the resource after receiving this
event, and create a new surface if they so choose.
</description>
</event>
<enum name="error">
<entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
<entry name="invalid_size" value="1" summary="size is invalid"/>
<entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
</enum>
<enum name="anchor" bitfield="true">
<entry name="top" value="1" summary="the top edge of the anchor rectangle"/>
<entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/>
<entry name="left" value="4" summary="the left edge of the anchor rectangle"/>
<entry name="right" value="8" summary="the right edge of the anchor rectangle"/>
</enum>
</interface>
</protocol>

View File

@ -1,11 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="xdg_shell_unstable_v5">
<protocol name="xdg_shell">
<copyright>
Copyright © 2008-2013 Kristian Høgsberg
Copyright © 2013 Rafael Antognolli
Copyright © 2013 Jasper St. Pierre
Copyright © 2010-2013 Intel Corporation
Copyright © 2015-2017 Samsung Electronics Co., Ltd
Copyright © 2015-2017 Red Hat Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
@ -27,214 +29,604 @@
DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="xdg_shell" version="1">
<interface name="xdg_wm_base" version="1">
<description summary="create desktop-style surfaces">
xdg_shell allows clients to turn a wl_surface into a "real window"
which can be dragged, resized, stacked, and moved around by the
user. Everything about this interface is suited towards traditional
desktop environments.
The xdg_wm_base interface is exposed as a global object enabling clients
to turn their wl_surfaces into windows in a desktop environment. It
defines the basic functionality needed for clients and the compositor to
create windows that can be dragged, resized, maximized, etc, as well as
creating transient windows such as popup menus.
</description>
<enum name="version">
<description summary="latest protocol version">
The 'current' member of this enum gives the version of the
protocol. Implementations can compare this to the version
they implement using static_assert to ensure the protocol and
implementation versions match.
</description>
<entry name="current" value="5" summary="Always the latest version"/>
</enum>
<enum name="error">
<entry name="role" value="0" summary="given wl_surface has another role"/>
<entry name="defunct_surfaces" value="1" summary="xdg_shell was destroyed before children"/>
<entry name="not_the_topmost_popup" value="2" summary="the client tried to map or destroy a non-topmost popup"/>
<entry name="invalid_popup_parent" value="3" summary="the client specified an invalid popup parent surface"/>
<entry name="defunct_surfaces" value="1"
summary="xdg_wm_base was destroyed before children"/>
<entry name="not_the_topmost_popup" value="2"
summary="the client tried to map or destroy a non-topmost popup"/>
<entry name="invalid_popup_parent" value="3"
summary="the client specified an invalid popup parent surface"/>
<entry name="invalid_surface_state" value="4"
summary="the client provided an invalid surface state"/>
<entry name="invalid_positioner" value="5"
summary="the client provided an invalid positioner"/>
</enum>
<request name="destroy" type="destructor">
<description summary="destroy xdg_shell">
Destroy this xdg_shell object.
<description summary="destroy xdg_wm_base">
Destroy this xdg_wm_base object.
Destroying a bound xdg_shell object while there are surfaces
still alive created by this xdg_shell object instance is illegal
and will result in a protocol error.
Destroying a bound xdg_wm_base object while there are surfaces
still alive created by this xdg_wm_base object instance is illegal
and will result in a protocol error.
</description>
</request>
<request name="use_unstable_version">
<description summary="enable use of this unstable version">
Negotiate the unstable version of the interface. This
mechanism is in place to ensure client and server agree on the
unstable versions of the protocol that they speak or exit
cleanly if they don't agree. This request will go away once
the xdg-shell protocol is stable.
<request name="create_positioner">
<description summary="create a positioner object">
Create a positioner object. A positioner object is used to position
surfaces relative to some parent surface. See the interface description
and xdg_surface.get_popup for details.
</description>
<arg name="version" type="int"/>
<arg name="id" type="new_id" interface="xdg_positioner"/>
</request>
<request name="get_xdg_surface">
<description summary="create a shell surface from a surface">
This creates an xdg_surface for the given surface and gives it the
xdg_surface role. A wl_surface can only be given an xdg_surface role
once. If get_xdg_surface is called with a wl_surface that already has
an active xdg_surface associated with it, or if it had any other role,
an error is raised.
This creates an xdg_surface for the given surface. While xdg_surface
itself is not a role, the corresponding surface may only be assigned
a role extending xdg_surface, such as xdg_toplevel or xdg_popup.
See the documentation of xdg_surface for more details about what an
xdg_surface is and how it is used.
This creates an xdg_surface for the given surface. An xdg_surface is
used as basis to define a role to a given surface, such as xdg_toplevel
or xdg_popup. It also manages functionality shared between xdg_surface
based surface roles.
See the documentation of xdg_surface for more details about what an
xdg_surface is and how it is used.
</description>
<arg name="id" type="new_id" interface="xdg_surface"/>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<request name="get_xdg_popup">
<description summary="create a popup for a surface">
This creates an xdg_popup for the given surface and gives it the
xdg_popup role. A wl_surface can only be given an xdg_popup role
once. If get_xdg_popup is called with a wl_surface that already has
an active xdg_popup associated with it, or if it had any other role,
an error is raised.
This request must be used in response to some sort of user action
like a button press, key press, or touch down event.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
<request name="pong">
<description summary="respond to a ping event">
A client must respond to a ping event with a pong request or
the client may be deemed unresponsive. See xdg_wm_base.ping.
</description>
<arg name="id" type="new_id" interface="xdg_popup"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="parent" type="object" interface="wl_surface"/>
<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
<arg name="serial" type="uint" summary="the serial of the user event"/>
<arg name="x" type="int"/>
<arg name="y" type="int"/>
<arg name="serial" type="uint" summary="serial of the ping event"/>
</request>
<event name="ping">
<description summary="check if the client is alive">
The ping event asks the client if it's still alive. Pass the
serial specified in the event back to the compositor by sending
a "pong" request back with the specified serial.
The ping event asks the client if it's still alive. Pass the
serial specified in the event back to the compositor by sending
a "pong" request back with the specified serial. See xdg_wm_base.ping.
Compositors can use this to determine if the client is still
alive. It's unspecified what will happen if the client doesn't
respond to the ping request, or in what timeframe. Clients should
try to respond in a reasonable amount of time.
Compositors can use this to determine if the client is still
alive. It's unspecified what will happen if the client doesn't
respond to the ping request, or in what timeframe. Clients should
try to respond in a reasonable amount of time.
A compositor is free to ping in any way it wants, but a client must
always respond to any xdg_shell object it created.
A compositor is free to ping in any way it wants, but a client must
always respond to any xdg_wm_base object it created.
</description>
<arg name="serial" type="uint" summary="pass this to the pong request"/>
</event>
</interface>
<request name="pong">
<description summary="respond to a ping event">
A client must respond to a ping event with a pong request or
the client may be deemed unresponsive.
<interface name="xdg_positioner" version="1">
<description summary="child surface positioner">
The xdg_positioner provides a collection of rules for the placement of a
child surface relative to a parent surface. Rules can be defined to ensure
the child surface remains within the visible area's borders, and to
specify how the child surface changes its position, such as sliding along
an axis, or flipping around a rectangle. These positioner-created rules are
constrained by the requirement that a child surface must intersect with or
be at least partially adjacent to its parent surface.
See the various requests for details about possible rules.
At the time of the request, the compositor makes a copy of the rules
specified by the xdg_positioner. Thus, after the request is complete the
xdg_positioner object can be destroyed or reused; further changes to the
object will have no effect on previous usages.
For an xdg_positioner object to be considered complete, it must have a
non-zero size set by set_size, and a non-zero anchor rectangle set by
set_anchor_rect. Passing an incomplete xdg_positioner object when
positioning a surface raises an error.
</description>
<enum name="error">
<entry name="invalid_input" value="0" summary="invalid input provided"/>
</enum>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_positioner object">
Notify the compositor that the xdg_positioner will no longer be used.
</description>
<arg name="serial" type="uint" summary="serial of the ping event"/>
</request>
<request name="set_size">
<description summary="set the size of the to-be positioned rectangle">
Set the size of the surface that is to be positioned with the positioner
object. The size is in surface-local coordinates and corresponds to the
window geometry. See xdg_surface.set_window_geometry.
If a zero or negative size is set the invalid_input error is raised.
</description>
<arg name="width" type="int" summary="width of positioned rectangle"/>
<arg name="height" type="int" summary="height of positioned rectangle"/>
</request>
<request name="set_anchor_rect">
<description summary="set the anchor rectangle within the parent surface">
Specify the anchor rectangle within the parent surface that the child
surface will be placed relative to. The rectangle is relative to the
window geometry as defined by xdg_surface.set_window_geometry of the
parent surface.
When the xdg_positioner object is used to position a child surface, the
anchor rectangle may not extend outside the window geometry of the
positioned child's parent surface.
If a negative size is set the invalid_input error is raised.
</description>
<arg name="x" type="int" summary="x position of anchor rectangle"/>
<arg name="y" type="int" summary="y position of anchor rectangle"/>
<arg name="width" type="int" summary="width of anchor rectangle"/>
<arg name="height" type="int" summary="height of anchor rectangle"/>
</request>
<enum name="anchor">
<entry name="none" value="0"/>
<entry name="top" value="1"/>
<entry name="bottom" value="2"/>
<entry name="left" value="3"/>
<entry name="right" value="4"/>
<entry name="top_left" value="5"/>
<entry name="bottom_left" value="6"/>
<entry name="top_right" value="7"/>
<entry name="bottom_right" value="8"/>
</enum>
<request name="set_anchor">
<description summary="set anchor rectangle anchor">
Defines the anchor point for the anchor rectangle. The specified anchor
is used derive an anchor point that the child surface will be
positioned relative to. If a corner anchor is set (e.g. 'top_left' or
'bottom_right'), the anchor point will be at the specified corner;
otherwise, the derived anchor point will be centered on the specified
edge, or in the center of the anchor rectangle if no edge is specified.
</description>
<arg name="anchor" type="uint" enum="anchor"
summary="anchor"/>
</request>
<enum name="gravity">
<entry name="none" value="0"/>
<entry name="top" value="1"/>
<entry name="bottom" value="2"/>
<entry name="left" value="3"/>
<entry name="right" value="4"/>
<entry name="top_left" value="5"/>
<entry name="bottom_left" value="6"/>
<entry name="top_right" value="7"/>
<entry name="bottom_right" value="8"/>
</enum>
<request name="set_gravity">
<description summary="set child surface gravity">
Defines in what direction a surface should be positioned, relative to
the anchor point of the parent surface. If a corner gravity is
specified (e.g. 'bottom_right' or 'top_left'), then the child surface
will be placed towards the specified gravity; otherwise, the child
surface will be centered over the anchor point on any axis that had no
gravity specified.
</description>
<arg name="gravity" type="uint" enum="gravity"
summary="gravity direction"/>
</request>
<enum name="constraint_adjustment" bitfield="true">
<description summary="constraint adjustments">
The constraint adjustment value define ways the compositor will adjust
the position of the surface, if the unadjusted position would result
in the surface being partly constrained.
Whether a surface is considered 'constrained' is left to the compositor
to determine. For example, the surface may be partly outside the
compositor's defined 'work area', thus necessitating the child surface's
position be adjusted until it is entirely inside the work area.
The adjustments can be combined, according to a defined precedence: 1)
Flip, 2) Slide, 3) Resize.
</description>
<entry name="none" value="0">
<description summary="don't move the child surface when constrained">
Don't alter the surface position even if it is constrained on some
axis, for example partially outside the edge of an output.
</description>
</entry>
<entry name="slide_x" value="1">
<description summary="move along the x axis until unconstrained">
Slide the surface along the x axis until it is no longer constrained.
First try to slide towards the direction of the gravity on the x axis
until either the edge in the opposite direction of the gravity is
unconstrained or the edge in the direction of the gravity is
constrained.
Then try to slide towards the opposite direction of the gravity on the
x axis until either the edge in the direction of the gravity is
unconstrained or the edge in the opposite direction of the gravity is
constrained.
</description>
</entry>
<entry name="slide_y" value="2">
<description summary="move along the y axis until unconstrained">
Slide the surface along the y axis until it is no longer constrained.
First try to slide towards the direction of the gravity on the y axis
until either the edge in the opposite direction of the gravity is
unconstrained or the edge in the direction of the gravity is
constrained.
Then try to slide towards the opposite direction of the gravity on the
y axis until either the edge in the direction of the gravity is
unconstrained or the edge in the opposite direction of the gravity is
constrained.
</description>
</entry>
<entry name="flip_x" value="4">
<description summary="invert the anchor and gravity on the x axis">
Invert the anchor and gravity on the x axis if the surface is
constrained on the x axis. For example, if the left edge of the
surface is constrained, the gravity is 'left' and the anchor is
'left', change the gravity to 'right' and the anchor to 'right'.
If the adjusted position also ends up being constrained, the resulting
position of the flip_x adjustment will be the one before the
adjustment.
</description>
</entry>
<entry name="flip_y" value="8">
<description summary="invert the anchor and gravity on the y axis">
Invert the anchor and gravity on the y axis if the surface is
constrained on the y axis. For example, if the bottom edge of the
surface is constrained, the gravity is 'bottom' and the anchor is
'bottom', change the gravity to 'top' and the anchor to 'top'.
The adjusted position is calculated given the original anchor
rectangle and offset, but with the new flipped anchor and gravity
values.
If the adjusted position also ends up being constrained, the resulting
position of the flip_y adjustment will be the one before the
adjustment.
</description>
</entry>
<entry name="resize_x" value="16">
<description summary="horizontally resize the surface">
Resize the surface horizontally so that it is completely
unconstrained.
</description>
</entry>
<entry name="resize_y" value="32">
<description summary="vertically resize the surface">
Resize the surface vertically so that it is completely unconstrained.
</description>
</entry>
</enum>
<request name="set_constraint_adjustment">
<description summary="set the adjustment to be done when constrained">
Specify how the window should be positioned if the originally intended
position caused the surface to be constrained, meaning at least
partially outside positioning boundaries set by the compositor. The
adjustment is set by constructing a bitmask describing the adjustment to
be made when the surface is constrained on that axis.
If no bit for one axis is set, the compositor will assume that the child
surface should not change its position on that axis when constrained.
If more than one bit for one axis is set, the order of how adjustments
are applied is specified in the corresponding adjustment descriptions.
The default adjustment is none.
</description>
<arg name="constraint_adjustment" type="uint"
summary="bit mask of constraint adjustments"/>
</request>
<request name="set_offset">
<description summary="set surface position offset">
Specify the surface position offset relative to the position of the
anchor on the anchor rectangle and the anchor on the surface. For
example if the anchor of the anchor rectangle is at (x, y), the surface
has the gravity bottom|right, and the offset is (ox, oy), the calculated
surface position will be (x + ox, y + oy). The offset position of the
surface is the one used for constraint testing. See
set_constraint_adjustment.
An example use case is placing a popup menu on top of a user interface
element, while aligning the user interface element of the parent surface
with some user interface element placed somewhere in the popup surface.
</description>
<arg name="x" type="int" summary="surface position x offset"/>
<arg name="y" type="int" summary="surface position y offset"/>
</request>
</interface>
<interface name="xdg_surface" version="1">
<description summary="A desktop window">
<description summary="desktop user interface surface base interface">
An interface that may be implemented by a wl_surface, for
implementations that provide a desktop-style user interface.
It provides requests to treat surfaces like windows, allowing to set
properties like maximized, fullscreen, minimized, and to move and resize
them, and associate metadata like title and app id.
It provides a base set of functionality required to construct user
interface elements requiring management by the compositor, such as
toplevel windows, menus, etc. The types of functionality are split into
xdg_surface roles.
Creating an xdg_surface does not set the role for a wl_surface. In order
to map an xdg_surface, the client must create a role-specific object
using, e.g., get_toplevel, get_popup. The wl_surface for any given
xdg_surface can have at most one role, and may not be assigned any role
not based on xdg_surface.
A role must be assigned before any other requests are made to the
xdg_surface object.
The client must call wl_surface.commit on the corresponding wl_surface
for the xdg_surface state to take effect. Prior to committing the new
state, it can set up initial configuration, such as maximizing or setting
a window geometry.
for the xdg_surface state to take effect.
Even without attaching a buffer the compositor must respond to initial
committed configuration, for instance sending a configure event with
expected window geometry if the client maximized its surface during
initialization.
Creating an xdg_surface from a wl_surface which has a buffer attached or
committed is a client error, and any attempts by a client to attach or
manipulate a buffer prior to the first xdg_surface.configure call must
also be treated as errors.
For a surface to be mapped by the compositor the client must have
committed both an xdg_surface state and a buffer.
Mapping an xdg_surface-based role surface is defined as making it
possible for the surface to be shown by the compositor. Note that
a mapped surface is not guaranteed to be visible once it is mapped.
For an xdg_surface to be mapped by the compositor, the following
conditions must be met:
(1) the client has assigned an xdg_surface-based role to the surface
(2) the client has set and committed the xdg_surface state and the
role-dependent state to the surface
(3) the client has committed a buffer to the surface
A newly-unmapped surface is considered to have met condition (1) out
of the 3 required conditions for mapping a surface if its role surface
has not been destroyed.
</description>
<enum name="error">
<entry name="not_constructed" value="1"/>
<entry name="already_constructed" value="2"/>
<entry name="unconfigured_buffer" value="3"/>
</enum>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_surface">
Destroy the xdg_surface object. An xdg_surface must only be destroyed
after its role object has been destroyed.
</description>
</request>
<request name="get_toplevel">
<description summary="assign the xdg_toplevel surface role">
This creates an xdg_toplevel object for the given xdg_surface and gives
the associated wl_surface the xdg_toplevel role.
See the documentation of xdg_toplevel for more details about what an
xdg_toplevel is and how it is used.
</description>
<arg name="id" type="new_id" interface="xdg_toplevel"/>
</request>
<request name="get_popup">
<description summary="assign the xdg_popup surface role">
This creates an xdg_popup object for the given xdg_surface and gives
the associated wl_surface the xdg_popup role.
If null is passed as a parent, a parent surface must be specified using
some other protocol, before committing the initial state.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
</description>
<arg name="id" type="new_id" interface="xdg_popup"/>
<arg name="parent" type="object" interface="xdg_surface" allow-null="true"/>
<arg name="positioner" type="object" interface="xdg_positioner"/>
</request>
<request name="set_window_geometry">
<description summary="set the new window geometry">
The window geometry of a surface is its "visible bounds" from the
user's perspective. Client-side decorations often have invisible
portions like drop-shadows which should be ignored for the
purposes of aligning, placing and constraining windows.
The window geometry is double buffered, and will be applied at the
time wl_surface.commit of the corresponding wl_surface is called.
When maintaining a position, the compositor should treat the (x, y)
coordinate of the window geometry as the top left corner of the window.
A client changing the (x, y) window geometry coordinate should in
general not alter the position of the window.
Once the window geometry of the surface is set, it is not possible to
unset it, and it will remain the same until set_window_geometry is
called again, even if a new subsurface or buffer is attached.
If never set, the value is the full bounds of the surface,
including any subsurfaces. This updates dynamically on every
commit. This unset is meant for extremely simple clients.
The arguments are given in the surface-local coordinate space of
the wl_surface associated with this xdg_surface.
The width and height must be greater than zero. Setting an invalid size
will raise an error. When applied, the effective window geometry will be
the set window geometry clamped to the bounding rectangle of the
combined geometry of the surface of the xdg_surface and the associated
subsurfaces.
</description>
<arg name="x" type="int"/>
<arg name="y" type="int"/>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</request>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
For instance, for toplevel surfaces the compositor might use this
information to move a surface to the top left only when the client has
drawn itself for the maximized or fullscreen state.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
A client may send multiple ack_configure requests before committing, but
only the last request sent before a commit indicates which configure
event the client really is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event marks the end of a configure sequence. A configure
sequence is a set of one or more events configuring the state of the
xdg_surface, including the final xdg_surface.configure event.
Where applicable, xdg_surface surface roles will during a configure
sequence extend this event as a latched state sent as events before the
xdg_surface.configure event. Such events should be considered to make up
a set of atomically applied configuration states, where the
xdg_surface.configure commits the accumulated state.
Clients should arrange their surface for the new states, and then send
an ack_configure request with the serial sent in this configure event at
some point before committing the new surface.
If the client receives multiple configure events before it can respond
to one, it is free to discard all but the last event it received.
</description>
<arg name="serial" type="uint" summary="serial of the configure event"/>
</event>
</interface>
<interface name="xdg_toplevel" version="1">
<description summary="toplevel surface">
This interface defines an xdg_surface role which allows a surface to,
among other things, set window-like properties such as maximize,
fullscreen, and minimize, set application-specific metadata like title and
id, and well as trigger user interactive operations such as interactive
resize and move.
Unmapping an xdg_toplevel means that the surface cannot be shown
by the compositor until it is explicitly mapped again.
All active operations (e.g., move, resize) are canceled and all
attributes (e.g. title, state, stacking, ...) are discarded for
an xdg_toplevel surface when it is unmapped.
Attaching a null buffer to a toplevel unmaps the surface.
</description>
<request name="destroy" type="destructor">
<description summary="Destroy the xdg_surface">
Unmap and destroy the window. The window will be effectively
hidden from the user's point of view, and all state like
maximization, fullscreen, and so on, will be lost.
<description summary="destroy the xdg_toplevel">
This request destroys the role surface and unmaps the surface;
see "Unmapping" behavior in interface section for details.
</description>
</request>
<request name="set_parent">
<description summary="set the parent of this surface">
Set the "parent" of this surface. This window should be stacked
above a parent. The parent surface must be mapped as long as this
surface is mapped.
Set the "parent" of this surface. This surface should be stacked
above the parent surface and all other ancestor surfaces.
Parent windows should be set on dialogs, toolboxes, or other
"auxiliary" surfaces, so that the parent is raised when the dialog
is raised.
Parent windows should be set on dialogs, toolboxes, or other
"auxiliary" surfaces, so that the parent is raised when the dialog
is raised.
Setting a null parent for a child window removes any parent-child
relationship for the child. Setting a null parent for a window which
currently has no parent is a no-op.
If the parent is unmapped then its children are managed as
though the parent of the now-unmapped parent has become the
parent of this surface. If no parent exists for the now-unmapped
parent then the children are managed as though they have no
parent surface.
</description>
<arg name="parent" type="object" interface="xdg_surface" allow-null="true"/>
<arg name="parent" type="object" interface="xdg_toplevel" allow-null="true"/>
</request>
<request name="set_title">
<description summary="set surface title">
Set a short title for the surface.
Set a short title for the surface.
This string may be used to identify the surface in a task bar,
window list, or other user interface elements provided by the
compositor.
This string may be used to identify the surface in a task bar,
window list, or other user interface elements provided by the
compositor.
The string must be encoded in UTF-8.
The string must be encoded in UTF-8.
</description>
<arg name="title" type="string"/>
</request>
<request name="set_app_id">
<description summary="set application ID">
Set an application identifier for the surface.
Set an application identifier for the surface.
The app ID identifies the general class of applications to which
the surface belongs. The compositor can use this to group multiple
surfaces together, or to determine how to launch a new application.
The app ID identifies the general class of applications to which
the surface belongs. The compositor can use this to group multiple
surfaces together, or to determine how to launch a new application.
For D-Bus activatable applications, the app ID is used as the D-Bus
service name.
For D-Bus activatable applications, the app ID is used as the D-Bus
service name.
The compositor shell will try to group application surfaces together
by their app ID. As a best practice, it is suggested to select app
ID's that match the basename of the application's .desktop file.
For example, "org.freedesktop.FooViewer" where the .desktop file is
"org.freedesktop.FooViewer.desktop".
The compositor shell will try to group application surfaces together
by their app ID. As a best practice, it is suggested to select app
ID's that match the basename of the application's .desktop file.
For example, "org.freedesktop.FooViewer" where the .desktop file is
"org.freedesktop.FooViewer.desktop".
See the desktop-entry specification [0] for more details on
application identifiers and how they relate to well-known D-Bus
names and .desktop files.
See the desktop-entry specification [0] for more details on
application identifiers and how they relate to well-known D-Bus
names and .desktop files.
[0] http://standards.freedesktop.org/desktop-entry-spec/
[0] http://standards.freedesktop.org/desktop-entry-spec/
</description>
<arg name="app_id" type="string"/>
</request>
<request name="show_window_menu">
<description summary="show the window menu">
Clients implementing client-side decorations might want to show
a context menu when right-clicking on the decorations, giving the
user a menu that they can use to maximize or minimize the window.
Clients implementing client-side decorations might want to show
a context menu when right-clicking on the decorations, giving the
user a menu that they can use to maximize or minimize the window.
This request asks the compositor to pop up such a window menu at
the given position, relative to the local surface coordinates of
the parent surface. There are no guarantees as to what menu items
the window menu contains.
This request asks the compositor to pop up such a window menu at
the given position, relative to the local surface coordinates of
the parent surface. There are no guarantees as to what menu items
the window menu contains.
This request must be used in response to some sort of user action
like a button press, key press, or touch down event.
This request must be used in response to some sort of user action
like a button press, key press, or touch down event.
</description>
<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
<arg name="serial" type="uint" summary="the serial of the user event"/>
<arg name="x" type="int" summary="the x position to pop up the window menu at"/>
@ -243,22 +635,22 @@
<request name="move">
<description summary="start an interactive move">
Start an interactive, user-driven move of the surface.
Start an interactive, user-driven move of the surface.
This request must be used in response to some sort of user action
like a button press, key press, or touch down event. The passed
serial is used to determine the type of interactive move (touch,
pointer, etc).
This request must be used in response to some sort of user action
like a button press, key press, or touch down event. The passed
serial is used to determine the type of interactive move (touch,
pointer, etc).
The server may ignore move requests depending on the state of
the surface (e.g. fullscreen or maximized), or if the passed serial
is no longer valid.
The server may ignore move requests depending on the state of
the surface (e.g. fullscreen or maximized), or if the passed serial
is no longer valid.
If triggered, the surface will lose the focus of the device
(wl_pointer, wl_touch, etc) used for the move. It is up to the
compositor to visually indicate that the move is taking place, such as
updating a pointer cursor, during the move. There is no guarantee
that the device focus will return when the move is completed.
If triggered, the surface will lose the focus of the device
(wl_pointer, wl_touch, etc) used for the move. It is up to the
compositor to visually indicate that the move is taking place, such as
updating a pointer cursor, during the move. There is no guarantee
that the device focus will return when the move is completed.
</description>
<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
<arg name="serial" type="uint" summary="the serial of the user event"/>
@ -266,8 +658,8 @@
<enum name="resize_edge">
<description summary="edge values for resizing">
These values are used to indicate which edge of a surface
is being dragged in a resize operation.
These values are used to indicate which edge of a surface
is being dragged in a resize operation.
</description>
<entry name="none" value="0"/>
<entry name="top" value="1"/>
@ -282,36 +674,36 @@
<request name="resize">
<description summary="start an interactive resize">
Start a user-driven, interactive resize of the surface.
Start a user-driven, interactive resize of the surface.
This request must be used in response to some sort of user action
like a button press, key press, or touch down event. The passed
serial is used to determine the type of interactive resize (touch,
pointer, etc).
This request must be used in response to some sort of user action
like a button press, key press, or touch down event. The passed
serial is used to determine the type of interactive resize (touch,
pointer, etc).
The server may ignore resize requests depending on the state of
the surface (e.g. fullscreen or maximized).
The server may ignore resize requests depending on the state of
the surface (e.g. fullscreen or maximized).
If triggered, the client will receive configure events with the
"resize" state enum value and the expected sizes. See the "resize"
enum value for more details about what is required. The client
must also acknowledge configure events using "ack_configure". After
the resize is completed, the client will receive another "configure"
event without the resize state.
If triggered, the client will receive configure events with the
"resize" state enum value and the expected sizes. See the "resize"
enum value for more details about what is required. The client
must also acknowledge configure events using "ack_configure". After
the resize is completed, the client will receive another "configure"
event without the resize state.
If triggered, the surface also will lose the focus of the device
(wl_pointer, wl_touch, etc) used for the resize. It is up to the
compositor to visually indicate that the resize is taking place,
such as updating a pointer cursor, during the resize. There is no
guarantee that the device focus will return when the resize is
completed.
If triggered, the surface also will lose the focus of the device
(wl_pointer, wl_touch, etc) used for the resize. It is up to the
compositor to visually indicate that the resize is taking place,
such as updating a pointer cursor, during the resize. There is no
guarantee that the device focus will return when the resize is
completed.
The edges parameter specifies how the surface should be resized,
and is one of the values of the resize_edge enum. The compositor
may use this information to update the surface position for
example when dragging the top left corner. The compositor may also
use this information to adapt its behavior, e.g. choose an
appropriate cursor image.
The edges parameter specifies how the surface should be resized,
and is one of the values of the resize_edge enum. The compositor
may use this information to update the surface position for
example when dragging the top left corner. The compositor may also
use this information to adapt its behavior, e.g. choose an
appropriate cursor image.
</description>
<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
<arg name="serial" type="uint" summary="the serial of the user event"/>
@ -320,304 +712,407 @@
<enum name="state">
<description summary="types of state on the surface">
The different state values used on the surface. This is designed for
state values like maximized, fullscreen. It is paired with the
configure event to ensure that both the client and the compositor
setting the state can be synchronized.
The different state values used on the surface. This is designed for
state values like maximized, fullscreen. It is paired with the
configure event to ensure that both the client and the compositor
setting the state can be synchronized.
States set in this way are double-buffered. They will get applied on
the next commit.
Desktop environments may extend this enum by taking up a range of
values and documenting the range they chose in this description.
They are not required to document the values for the range that they
chose. Ideally, any good extensions from a desktop environment should
make its way into standardization into this enum.
The current reserved ranges are:
0x0000 - 0x0FFF: xdg-shell core values, documented below.
0x1000 - 0x1FFF: GNOME
0x2000 - 0x2FFF: EFL
States set in this way are double-buffered. They will get applied on
the next commit.
</description>
<entry name="maximized" value="1" summary="the surface is maximized">
<description summary="the surface is maximized">
The surface is maximized. The window geometry specified in the configure
event must be obeyed by the client.
</description>
<description summary="the surface is maximized">
The surface is maximized. The window geometry specified in the configure
event must be obeyed by the client.
</description>
</entry>
<entry name="fullscreen" value="2" summary="the surface is fullscreen">
<description summary="the surface is fullscreen">
The surface is fullscreen. The window geometry specified in the configure
event must be obeyed by the client.
</description>
<description summary="the surface is fullscreen">
The surface is fullscreen. The window geometry specified in the
configure event is a maximum; the client cannot resize beyond it. For
a surface to cover the whole fullscreened area, the geometry
dimensions must be obeyed by the client. For more details, see
xdg_toplevel.set_fullscreen.
</description>
</entry>
<entry name="resizing" value="3" summary="the surface is being resized">
<description summary="the surface is being resized">
The surface is being resized. The window geometry specified in the
configure event is a maximum; the client cannot resize beyond it.
Clients that have aspect ratio or cell sizing configuration can use
a smaller size, however.
</description>
<description summary="the surface is being resized">
The surface is being resized. The window geometry specified in the
configure event is a maximum; the client cannot resize beyond it.
Clients that have aspect ratio or cell sizing configuration can use
a smaller size, however.
</description>
</entry>
<entry name="activated" value="4" summary="the surface is now activated">
<description summary="the surface is now activated">
Client window decorations should be painted as if the window is
active. Do not assume this means that the window actually has
keyboard or pointer focus.
</description>
<description summary="the surface is now activated">
Client window decorations should be painted as if the window is
active. Do not assume this means that the window actually has
keyboard or pointer focus.
</description>
</entry>
</enum>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to resize its surface or to
change its state.
<request name="set_max_size">
<description summary="set the maximum size">
Set a maximum size for the window.
The width and height arguments specify a hint to the window
about how its surface should be resized in window geometry
coordinates. See set_window_geometry.
The client can specify a maximum size so that the compositor does
not try to configure the window beyond this size.
If the width or height arguments are zero, it means the client
should decide its own window dimension. This may happen when the
compositor need to configure the state of the surface but doesn't
have any information about any previous or expected dimension.
The width and height arguments are in window geometry coordinates.
See xdg_surface.set_window_geometry.
The states listed in the event specify how the width/height
arguments should be interpreted, and possibly how it should be
drawn.
Values set in this way are double-buffered. They will get applied
on the next commit.
Clients should arrange their surface for the new size and
states, and then send a ack_configure request with the serial
sent in this configure event at some point before committing
the new surface.
The compositor can use this information to allow or disallow
different states like maximize or fullscreen and draw accurate
animations.
If the client receives multiple configure events before it
can respond to one, it is free to discard all but the last
event it received.
Similarly, a tiling window manager may use this information to
place and resize client windows in a more effective way.
The client should not rely on the compositor to obey the maximum
size. The compositor may decide to ignore the values set by the
client and request a larger size.
If never set, or a value of zero in the request, means that the
client has no expected maximum size in the given dimension.
As a result, a client wishing to reset the maximum size
to an unspecified state can use zero for width and height in the
request.
Requesting a maximum size to be smaller than the minimum size of
a surface is illegal and will result in a protocol error.
The width and height must be greater than or equal to zero. Using
strictly negative values for width and height will result in a
protocol error.
</description>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
<arg name="states" type="array"/>
<arg name="serial" type="uint"/>
</event>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
For instance, the compositor might use this information to move
a surface to the top left only when the client has drawn itself
for the maximized or fullscreen state.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
The compositor expects that the most recently received
ack_configure request at the time of a commit indicates which
configure event the client is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<request name="set_window_geometry">
<description summary="set the new window geometry">
The window geometry of a window is its "visible bounds" from the
user's perspective. Client-side decorations often have invisible
portions like drop-shadows which should be ignored for the
purposes of aligning, placing and constraining windows.
<request name="set_min_size">
<description summary="set the minimum size">
Set a minimum size for the window.
The window geometry is double buffered, and will be applied at the
time wl_surface.commit of the corresponding wl_surface is called.
The client can specify a minimum size so that the compositor does
not try to configure the window below this size.
Once the window geometry of the surface is set once, it is not
possible to unset it, and it will remain the same until
set_window_geometry is called again, even if a new subsurface or
buffer is attached.
The width and height arguments are in window geometry coordinates.
See xdg_surface.set_window_geometry.
If never set, the value is the full bounds of the surface,
including any subsurfaces. This updates dynamically on every
commit. This unset mode is meant for extremely simple clients.
Values set in this way are double-buffered. They will get applied
on the next commit.
If responding to a configure event, the window geometry in here
must respect the sizing negotiations specified by the states in
the configure event.
The compositor can use this information to allow or disallow
different states like maximize or fullscreen and draw accurate
animations.
The arguments are given in the surface local coordinate space of
the wl_surface associated with this xdg_surface.
Similarly, a tiling window manager may use this information to
place and resize client windows in a more effective way.
The width and height must be greater than zero.
The client should not rely on the compositor to obey the minimum
size. The compositor may decide to ignore the values set by the
client and request a smaller size.
If never set, or a value of zero in the request, means that the
client has no expected minimum size in the given dimension.
As a result, a client wishing to reset the minimum size
to an unspecified state can use zero for width and height in the
request.
Requesting a minimum size to be larger than the maximum size of
a surface is illegal and will result in a protocol error.
The width and height must be greater than or equal to zero. Using
strictly negative values for width and height will result in a
protocol error.
</description>
<arg name="x" type="int"/>
<arg name="y" type="int"/>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</request>
<request name="set_maximized">
<description summary="maximize the window">
Maximize the surface.
Maximize the surface.
After requesting that the surface should be maximized, the compositor
will respond by emitting a configure event with the "maximized" state
and the required window geometry. The client should then update its
content, drawing it in a maximized state, i.e. without shadow or other
decoration outside of the window geometry. The client must also
acknowledge the configure when committing the new content (see
ack_configure).
After requesting that the surface should be maximized, the compositor
will respond by emitting a configure event with the "maximized" state
and the required window geometry. The client should then update its
content, drawing it in a maximized state, i.e. without shadow or other
decoration outside of the window geometry. The client must also
acknowledge the configure when committing the new content (see
ack_configure).
It is up to the compositor to decide how and where to maximize the
surface, for example which output and what region of the screen should
be used.
It is up to the compositor to decide how and where to maximize the
surface, for example which output and what region of the screen should
be used.
If the surface was already maximized, the compositor will still emit
a configure event with the "maximized" state.
If the surface was already maximized, the compositor will still emit
a configure event with the "maximized" state.
If the surface is in a fullscreen state, this request has no direct
effect. It will alter the state the surface is returned to when
unmaximized if not overridden by the compositor.
</description>
</request>
<request name="unset_maximized">
<description summary="unmaximize the window">
Unmaximize the surface.
Unmaximize the surface.
After requesting that the surface should be unmaximized, the compositor
will respond by emitting a configure event without the "maximized"
state. If available, the compositor will include the window geometry
dimensions the window had prior to being maximized in the configure
request. The client must then update its content, drawing it in a
regular state, i.e. potentially with shadow, etc. The client must also
acknowledge the configure when committing the new content (see
ack_configure).
After requesting that the surface should be unmaximized, the compositor
will respond by emitting a configure event without the "maximized"
state. If available, the compositor will include the window geometry
dimensions the window had prior to being maximized in the configure
event. The client must then update its content, drawing it in a
regular state, i.e. potentially with shadow, etc. The client must also
acknowledge the configure when committing the new content (see
ack_configure).
It is up to the compositor to position the surface after it was
unmaximized; usually the position the surface had before maximizing, if
applicable.
It is up to the compositor to position the surface after it was
unmaximized; usually the position the surface had before maximizing, if
applicable.
If the surface was already not maximized, the compositor will still
emit a configure event without the "maximized" state.
If the surface was already not maximized, the compositor will still
emit a configure event without the "maximized" state.
If the surface is in a fullscreen state, this request has no direct
effect. It will alter the state the surface is returned to when
unmaximized if not overridden by the compositor.
</description>
</request>
<request name="set_fullscreen">
<description summary="set the window as fullscreen on a monitor">
Make the surface fullscreen.
<description summary="set the window as fullscreen on an output">
Make the surface fullscreen.
You can specify an output that you would prefer to be fullscreen.
If this value is NULL, it's up to the compositor to choose which
display will be used to map this surface.
After requesting that the surface should be fullscreened, the
compositor will respond by emitting a configure event with the
"fullscreen" state and the fullscreen window geometry. The client must
also acknowledge the configure when committing the new content (see
ack_configure).
If the surface doesn't cover the whole output, the compositor will
position the surface in the center of the output and compensate with
black borders filling the rest of the output.
The output passed by the request indicates the client's preference as
to which display it should be set fullscreen on. If this value is NULL,
it's up to the compositor to choose which display will be used to map
this surface.
If the surface doesn't cover the whole output, the compositor will
position the surface in the center of the output and compensate with
with border fill covering the rest of the output. The content of the
border fill is undefined, but should be assumed to be in some way that
attempts to blend into the surrounding area (e.g. solid black).
If the fullscreened surface is not opaque, the compositor must make
sure that other screen content not part of the same surface tree (made
up of subsurfaces, popups or similarly coupled surfaces) are not
visible below the fullscreened surface.
</description>
<arg name="output" type="object" interface="wl_output" allow-null="true"/>
</request>
<request name="unset_fullscreen" />
<request name="set_minimized">
<description summary="set the window as minimized">
Request that the compositor minimize your surface. There is no
way to know if the surface is currently minimized, nor is there
any way to unset minimization on this surface.
<request name="unset_fullscreen">
<description summary="unset the window as fullscreen">
Make the surface no longer fullscreen.
If you are looking to throttle redrawing when minimized, please
instead use the wl_surface.frame event for this, as this will
also work with live previews on windows in Alt-Tab, Expose or
similar compositor features.
After requesting that the surface should be unfullscreened, the
compositor will respond by emitting a configure event without the
"fullscreen" state.
Making a surface unfullscreen sets states for the surface based on the following:
* the state(s) it may have had before becoming fullscreen
* any state(s) decided by the compositor
* any state(s) requested by the client while the surface was fullscreen
The compositor may include the previous window geometry dimensions in
the configure event, if applicable.
The client must also acknowledge the configure when committing the new
content (see ack_configure).
</description>
</request>
<request name="set_minimized">
<description summary="set the window as minimized">
Request that the compositor minimize your surface. There is no
way to know if the surface is currently minimized, nor is there
any way to unset minimization on this surface.
If you are looking to throttle redrawing when minimized, please
instead use the wl_surface.frame event for this, as this will
also work with live previews on windows in Alt-Tab, Expose or
similar compositor features.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
This configure event asks the client to resize its toplevel surface or
to change its state. The configured state should not be applied
immediately. See xdg_surface.configure for details.
The width and height arguments specify a hint to the window
about how its surface should be resized in window geometry
coordinates. See set_window_geometry.
If the width or height arguments are zero, it means the client
should decide its own window dimension. This may happen when the
compositor needs to configure the state of the surface but doesn't
have any information about any previous or expected dimension.
The states listed in the event specify how the width/height
arguments should be interpreted, and possibly how it should be
drawn.
Clients must send an ack_configure in response to this event. See
xdg_surface.configure and xdg_surface.ack_configure for details.
</description>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
<arg name="states" type="array"/>
</event>
<event name="close">
<description summary="surface wants to be closed">
The close event is sent by the compositor when the user
wants the surface to be closed. This should be equivalent to
the user clicking the close button in client-side decorations,
if your application has any...
The close event is sent by the compositor when the user
wants the surface to be closed. This should be equivalent to
the user clicking the close button in client-side decorations,
if your application has any.
This is only a request that the user intends to close your
window. The client may choose to ignore this request, or show
a dialog to ask the user to save their data...
This is only a request that the user intends to close the
window. The client may choose to ignore this request, or show
a dialog to ask the user to save their data, etc.
</description>
</event>
</interface>
<interface name="xdg_popup" version="1">
<description summary="short-lived, popup surfaces for menus">
A popup surface is a short-lived, temporary surface that can be
used to implement menus. It takes an explicit grab on the surface
that will be dismissed when the user dismisses the popup. This can
be done by the user clicking outside the surface, using the keyboard,
or even locking the screen through closing the lid or a timeout.
A popup surface is a short-lived, temporary surface. It can be used to
implement for example menus, popovers, tooltips and other similar user
interface concepts.
When the popup is dismissed, a popup_done event will be sent out,
and at the same time the surface will be unmapped. The xdg_popup
object is now inert and cannot be reactivated, so clients should
destroy it. Explicitly destroying the xdg_popup object will also
dismiss the popup and unmap the surface.
A popup can be made to take an explicit grab. See xdg_popup.grab for
details.
Clients will receive events for all their surfaces during this
grab (which is an "owner-events" grab in X11 parlance). This is
done so that users can navigate through submenus and other
"nested" popup windows without having to dismiss the topmost
popup.
When the popup is dismissed, a popup_done event will be sent out, and at
the same time the surface will be unmapped. See the xdg_popup.popup_done
event for details.
Clients that want to dismiss the popup when another surface of
their own is clicked should dismiss the popup using the destroy
Explicitly destroying the xdg_popup object will also dismiss the popup and
unmap the surface. Clients that want to dismiss the popup when another
surface of their own is clicked should dismiss the popup using the destroy
request.
The parent surface must have either an xdg_surface or xdg_popup
The parent surface must have either the xdg_toplevel or xdg_popup surface
role.
Specifying an xdg_popup for the parent means that the popups are
nested, with this popup now being the topmost popup. Nested
popups must be destroyed in the reverse order they were created
in, e.g. the only popup you are allowed to destroy at all times
is the topmost one.
A newly created xdg_popup will be stacked on top of all previously created
xdg_popup surfaces associated with the same xdg_toplevel.
If there is an existing popup when creating a new popup, the
parent must be the current topmost popup.
A parent surface must be mapped before the new popup is mapped.
When compositors choose to dismiss a popup, they will likely
dismiss every nested popup as well. When a compositor dismisses
popups, it will follow the same dismissing order as required
from the client.
The parent of an xdg_popup must be mapped (see the xdg_surface
description) before the xdg_popup itself.
The x and y arguments passed when creating the popup object specify
where the top left of the popup should be placed, relative to the
local surface coordinates of the parent surface. See
xdg_shell.get_xdg_popup.
xdg_surface.get_popup. An xdg_popup must intersect with or be at least
partially adjacent to its parent surface.
The client must call wl_surface.commit on the corresponding wl_surface
for the xdg_popup state to take effect.
For a surface to be mapped by the compositor the client must have
committed both the xdg_popup state and a buffer.
</description>
<enum name="error">
<entry name="invalid_grab" value="0"
summary="tried to grab after being mapped"/>
</enum>
<request name="destroy" type="destructor">
<description summary="remove xdg_popup interface">
This destroys the popup. Explicitly destroying the xdg_popup
object will also dismiss the popup, and unmap the surface.
This destroys the popup. Explicitly destroying the xdg_popup
object will also dismiss the popup, and unmap the surface.
If this xdg_popup is not the "topmost" popup, a protocol error
will be sent.
If this xdg_popup is not the "topmost" popup, a protocol error
will be sent.
</description>
</request>
<request name="grab">
<description summary="make the popup take an explicit grab">
This request makes the created popup take an explicit grab. An explicit
grab will be dismissed when the user dismisses the popup, or when the
client destroys the xdg_popup. This can be done by the user clicking
outside the surface, using the keyboard, or even locking the screen
through closing the lid or a timeout.
If the compositor denies the grab, the popup will be immediately
dismissed.
This request must be used in response to some sort of user action like a
button press, key press, or touch down event. The serial number of the
event should be passed as 'serial'.
The parent of a grabbing popup must either be an xdg_toplevel surface or
another xdg_popup with an explicit grab. If the parent is another
xdg_popup it means that the popups are nested, with this popup now being
the topmost popup.
Nested popups must be destroyed in the reverse order they were created
in, e.g. the only popup you are allowed to destroy at all times is the
topmost one.
When compositors choose to dismiss a popup, they may dismiss every
nested grabbing popup as well. When a compositor dismisses popups, it
will follow the same dismissing order as required from the client.
The parent of a grabbing popup must either be another xdg_popup with an
active explicit grab, or an xdg_popup or xdg_toplevel, if there are no
explicit grabs already taken.
If the topmost grabbing popup is destroyed, the grab will be returned to
the parent of the popup, if that parent previously had an explicit grab.
If the parent is a grabbing popup which has already been dismissed, this
popup will be immediately dismissed. If the parent is a popup that did
not take an explicit grab, an error will be raised.
During a popup grab, the client owning the grab will receive pointer
and touch events for all their surfaces as normal (similar to an
"owner-events" grab in X11 parlance), while the top most grabbing popup
will always have keyboard focus.
</description>
<arg name="seat" type="object" interface="wl_seat"
summary="the wl_seat of the user event"/>
<arg name="serial" type="uint" summary="the serial of the user event"/>
</request>
<event name="configure">
<description summary="configure the popup surface">
This event asks the popup surface to configure itself given the
configuration. The configured state should not be applied immediately.
See xdg_surface.configure for details.
The x and y arguments represent the position the popup was placed at
given the xdg_positioner rule, relative to the upper left corner of the
window geometry of the parent surface.
</description>
<arg name="x" type="int"
summary="x position relative to parent surface window geometry"/>
<arg name="y" type="int"
summary="y position relative to parent surface window geometry"/>
<arg name="width" type="int" summary="window geometry width"/>
<arg name="height" type="int" summary="window geometry height"/>
</event>
<event name="popup_done">
<description summary="popup interaction is done">
The popup_done event is sent out when a popup is dismissed by the
compositor. The client should destroy the xdg_popup object at this
point.
The popup_done event is sent out when a popup is dismissed by the
compositor. The client should destroy the xdg_popup object at this
point.
</description>
</event>