weston/libweston-desktop/xwayland.c
Pekka Paalanen 3d5d9476e3 Rename compositor.h to libweston/libweston.h
The main idea is to make libweston users use the form

 #include <libweston/libweston.h>

instead of the plain

 #include <compositor.h>

which is prone to name conflicts. This is reflected both in the installed
files, and the internal header search paths so that Weston would use the exact
same form as an external project using libweston would.

The public headers are moved under a new top-level directory include/ to make
them clearly stand out as special (public API).

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2019-04-18 12:31:46 +03:00

426 lines
12 KiB
C

/*
* Copyright © 2010-2012 Intel Corporation
* Copyright © 2011-2012 Collabora, Ltd.
* Copyright © 2013 Raspberry Pi Foundation
* Copyright © 2016 Quentin "Sardem FF7" Glidic
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <assert.h>
#include <wayland-server.h>
#include <libweston/libweston.h>
#include "zalloc.h"
#include "libweston-desktop.h"
#include "internal.h"
#include "xwayland/xwayland-internal-interface.h"
enum weston_desktop_xwayland_surface_state {
NONE,
TOPLEVEL,
MAXIMIZED,
FULLSCREEN,
TRANSIENT,
XWAYLAND,
};
struct weston_desktop_xwayland {
struct weston_desktop *desktop;
struct weston_desktop_client *client;
struct weston_layer layer;
};
struct weston_desktop_xwayland_surface {
struct weston_desktop_xwayland *xwayland;
struct weston_desktop *desktop;
struct weston_desktop_surface *surface;
struct wl_listener resource_destroy_listener;
struct weston_view *view;
const struct weston_xwayland_client_interface *client_interface;
struct weston_geometry next_geometry;
bool has_next_geometry;
bool committed;
bool added;
enum weston_desktop_xwayland_surface_state state;
};
static void
weston_desktop_xwayland_surface_change_state(struct weston_desktop_xwayland_surface *surface,
enum weston_desktop_xwayland_surface_state state,
struct weston_desktop_surface *parent,
int32_t x, int32_t y)
{
struct weston_surface *wsurface;
bool to_add = (parent == NULL && state != XWAYLAND);
assert(state != NONE);
assert(!parent || state == TRANSIENT);
if (to_add && surface->added) {
surface->state = state;
return;
}
wsurface = weston_desktop_surface_get_surface(surface->surface);
if (surface->state != state) {
if (surface->state == XWAYLAND) {
assert(!surface->added);
weston_desktop_surface_unlink_view(surface->view);
weston_view_destroy(surface->view);
surface->view = NULL;
weston_surface_unmap(wsurface);
}
if (to_add) {
weston_desktop_surface_unset_relative_to(surface->surface);
weston_desktop_api_surface_added(surface->desktop,
surface->surface);
surface->added = true;
if (surface->state == NONE && surface->committed)
/* We had a race, and wl_surface.commit() was
* faster, just fake a commit to map the
* surface */
weston_desktop_api_committed(surface->desktop,
surface->surface,
0, 0);
} else if (surface->added) {
weston_desktop_api_surface_removed(surface->desktop,
surface->surface);
surface->added = false;
}
if (state == XWAYLAND) {
assert(!surface->added);
surface->view =
weston_desktop_surface_create_view(surface->surface);
weston_layer_entry_insert(&surface->xwayland->layer.view_list,
&surface->view->layer_link);
surface->view->is_mapped = true;
wsurface->is_mapped = true;
}
surface->state = state;
}
if (parent != NULL)
weston_desktop_surface_set_relative_to(surface->surface, parent,
x, y, false);
}
static void
weston_desktop_xwayland_surface_committed(struct weston_desktop_surface *dsurface,
void *user_data,
int32_t sx, int32_t sy)
{
struct weston_desktop_xwayland_surface *surface = user_data;
struct weston_geometry oldgeom;
assert(dsurface == surface->surface);
surface->committed = true;
#ifdef WM_DEBUG
weston_log("%s: xwayland surface %p\n", __func__, surface);
#endif
if (surface->has_next_geometry) {
oldgeom = weston_desktop_surface_get_geometry(surface->surface);
sx -= surface->next_geometry.x - oldgeom.x;
sy -= surface->next_geometry.y - oldgeom.x;
surface->has_next_geometry = false;
weston_desktop_surface_set_geometry(surface->surface,
surface->next_geometry);
}
if (surface->added)
weston_desktop_api_committed(surface->desktop, surface->surface,
sx, sy);
}
static void
weston_desktop_xwayland_surface_set_size(struct weston_desktop_surface *dsurface,
void *user_data,
int32_t width, int32_t height)
{
struct weston_desktop_xwayland_surface *surface = user_data;
struct weston_surface *wsurface =
weston_desktop_surface_get_surface(surface->surface);
surface->client_interface->send_configure(wsurface, width, height);
}
static void
weston_desktop_xwayland_surface_destroy(struct weston_desktop_surface *dsurface,
void *user_data)
{
struct weston_desktop_xwayland_surface *surface = user_data;
wl_list_remove(&surface->resource_destroy_listener.link);
weston_desktop_surface_unset_relative_to(surface->surface);
if (surface->added)
weston_desktop_api_surface_removed(surface->desktop,
surface->surface);
else if (surface->state == XWAYLAND)
weston_desktop_surface_unlink_view(surface->view);
free(surface);
}
static bool
weston_desktop_xwayland_surface_get_maximized(struct weston_desktop_surface *dsurface,
void *user_data)
{
struct weston_desktop_xwayland_surface *surface = user_data;
return surface->state == MAXIMIZED;
}
static bool
weston_desktop_xwayland_surface_get_fullscreen(struct weston_desktop_surface *dsurface,
void *user_data)
{
struct weston_desktop_xwayland_surface *surface = user_data;
return surface->state == FULLSCREEN;
}
static const struct weston_desktop_surface_implementation weston_desktop_xwayland_surface_internal_implementation = {
.committed = weston_desktop_xwayland_surface_committed,
.set_size = weston_desktop_xwayland_surface_set_size,
.get_maximized = weston_desktop_xwayland_surface_get_maximized,
.get_fullscreen = weston_desktop_xwayland_surface_get_fullscreen,
.destroy = weston_desktop_xwayland_surface_destroy,
};
static void
weston_destop_xwayland_resource_destroyed(struct wl_listener *listener,
void *data)
{
struct weston_desktop_xwayland_surface *surface =
wl_container_of(listener, surface, resource_destroy_listener);
weston_desktop_surface_destroy(surface->surface);
}
static struct weston_desktop_xwayland_surface *
create_surface(struct weston_desktop_xwayland *xwayland,
struct weston_surface *wsurface,
const struct weston_xwayland_client_interface *client_interface)
{
struct weston_desktop_xwayland_surface *surface;
surface = zalloc(sizeof(struct weston_desktop_xwayland_surface));
if (surface == NULL)
return NULL;
surface->xwayland = xwayland;
surface->desktop = xwayland->desktop;
surface->client_interface = client_interface;
surface->surface =
weston_desktop_surface_create(surface->desktop,
xwayland->client, wsurface,
&weston_desktop_xwayland_surface_internal_implementation,
surface);
if (surface->surface == NULL) {
free(surface);
return NULL;
}
surface->resource_destroy_listener.notify =
weston_destop_xwayland_resource_destroyed;
wl_resource_add_destroy_listener(wsurface->resource,
&surface->resource_destroy_listener);
weston_desktop_surface_set_pid(surface->surface, 0);
return surface;
}
static void
set_toplevel(struct weston_desktop_xwayland_surface *surface)
{
weston_desktop_xwayland_surface_change_state(surface, TOPLEVEL, NULL,
0, 0);
}
static void
set_toplevel_with_position(struct weston_desktop_xwayland_surface *surface,
int32_t x, int32_t y)
{
weston_desktop_xwayland_surface_change_state(surface, TOPLEVEL, NULL,
0, 0);
weston_desktop_api_set_xwayland_position(surface->desktop,
surface->surface, x, y);
}
static void
set_parent(struct weston_desktop_xwayland_surface *surface,
struct weston_surface *wparent)
{
struct weston_desktop_surface *parent;
if (!weston_surface_is_desktop_surface(wparent))
return;
parent = weston_surface_get_desktop_surface(wparent);
weston_desktop_api_set_parent(surface->desktop, surface->surface, parent);
}
static void
set_transient(struct weston_desktop_xwayland_surface *surface,
struct weston_surface *wparent, int x, int y)
{
struct weston_desktop_surface *parent;
if (!weston_surface_is_desktop_surface(wparent))
return;
parent = weston_surface_get_desktop_surface(wparent);
weston_desktop_xwayland_surface_change_state(surface, TRANSIENT, parent,
x, y);
}
static void
set_fullscreen(struct weston_desktop_xwayland_surface *surface,
struct weston_output *output)
{
weston_desktop_xwayland_surface_change_state(surface, FULLSCREEN, NULL,
0, 0);
weston_desktop_api_fullscreen_requested(surface->desktop,
surface->surface, true, output);
}
static void
set_xwayland(struct weston_desktop_xwayland_surface *surface, int x, int y)
{
weston_desktop_xwayland_surface_change_state(surface, XWAYLAND, NULL,
x, y);
weston_view_set_position(surface->view, x, y);
}
static int
move(struct weston_desktop_xwayland_surface *surface,
struct weston_pointer *pointer)
{
if (surface->state == TOPLEVEL ||
surface->state == MAXIMIZED ||
surface->state == FULLSCREEN)
weston_desktop_api_move(surface->desktop, surface->surface,
pointer->seat, pointer->grab_serial);
return 0;
}
static int
resize(struct weston_desktop_xwayland_surface *surface,
struct weston_pointer *pointer, uint32_t edges)
{
if (surface->state == TOPLEVEL ||
surface->state == MAXIMIZED ||
surface->state == FULLSCREEN)
weston_desktop_api_resize(surface->desktop, surface->surface,
pointer->seat, pointer->grab_serial,
edges);
return 0;
}
static void
set_title(struct weston_desktop_xwayland_surface *surface, const char *title)
{
weston_desktop_surface_set_title(surface->surface, title);
}
static void
set_window_geometry(struct weston_desktop_xwayland_surface *surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
surface->has_next_geometry = true;
surface->next_geometry.x = x;
surface->next_geometry.y = y;
surface->next_geometry.width = width;
surface->next_geometry.height = height;
}
static void
set_maximized(struct weston_desktop_xwayland_surface *surface)
{
weston_desktop_xwayland_surface_change_state(surface, MAXIMIZED, NULL,
0, 0);
weston_desktop_api_maximized_requested(surface->desktop,
surface->surface, true);
}
static void
set_pid(struct weston_desktop_xwayland_surface *surface, pid_t pid)
{
weston_desktop_surface_set_pid(surface->surface, pid);
}
static const struct weston_desktop_xwayland_interface weston_desktop_xwayland_interface = {
.create_surface = create_surface,
.set_toplevel = set_toplevel,
.set_toplevel_with_position = set_toplevel_with_position,
.set_parent = set_parent,
.set_transient = set_transient,
.set_fullscreen = set_fullscreen,
.set_xwayland = set_xwayland,
.move = move,
.resize = resize,
.set_title = set_title,
.set_window_geometry = set_window_geometry,
.set_maximized = set_maximized,
.set_pid = set_pid,
};
void
weston_desktop_xwayland_init(struct weston_desktop *desktop)
{
struct weston_compositor *compositor = weston_desktop_get_compositor(desktop);
struct weston_desktop_xwayland *xwayland;
xwayland = zalloc(sizeof(struct weston_desktop_xwayland));
if (xwayland == NULL)
return;
xwayland->desktop = desktop;
xwayland->client = weston_desktop_client_create(desktop, NULL, NULL, NULL, NULL, 0, 0);
weston_layer_init(&xwayland->layer, compositor);
/* We put this layer on top of regular shell surfaces, but hopefully
* below any UI the shell would add */
weston_layer_set_position(&xwayland->layer,
WESTON_LAYER_POSITION_NORMAL + 1);
compositor->xwayland = xwayland;
compositor->xwayland_interface = &weston_desktop_xwayland_interface;
}