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xwayland/xwm: replace role with addon

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Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3545
This commit is contained in:
Simon Ser 2022-11-29 17:19:30 +01:00
parent 512deebd82
commit 532f3d3c20
2 changed files with 71 additions and 56 deletions
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15
include/wlr/xwayland/xwayland.h
View file

@ -13,6 +13,7 @@
#include <wayland-server-core.h>
#include <xcb/xcb.h>
#include <xcb/xcb_icccm.h>
#include <wlr/util/addon.h>
struct wlr_xwm;
struct wlr_data_source;
@ -89,6 +90,10 @@ struct wlr_xwayland_surface {
struct wl_list unpaired_link;
struct wlr_surface *surface;
struct wlr_addon surface_addon;
struct wl_listener surface_commit;
struct wl_listener surface_precommit;
int16_t x, y;
uint16_t width, height;
uint16_t saved_width, saved_height;
@ -227,15 +232,17 @@ void wlr_xwayland_set_seat(struct wlr_xwayland *xwayland,
struct wlr_seat *seat);
/**
* Returns true if the surface has the xwayland surface role.
* Check whether a surface is an Xwayland surface.
*
* As an edge case, if the surface has been created by Xwayland but has no X11
* window associated, false is returned.
*/
bool wlr_surface_is_xwayland_surface(struct wlr_surface *surface);
/**
* Get a struct wlr_xwayland_surface from a struct wlr_surface.
* Asserts that the surface has the xwayland surface role.
* May return NULL even if the surface has the xwayland surface role if the
* corresponding xwayland surface has been unmapped or destroyed.
*
* This function asserts that the surface is an Xwayland surface.
*/
struct wlr_xwayland_surface *wlr_xwayland_surface_from_wlr_surface(
struct wlr_surface *surface);

114
xwayland/xwm.c
View file

@ -99,16 +99,18 @@ struct pending_startup_id {
struct wl_list link;
};
static const struct wlr_surface_role xwayland_surface_role;
static const struct wlr_addon_interface surface_addon_impl;
bool wlr_surface_is_xwayland_surface(struct wlr_surface *surface) {
return surface->role == &xwayland_surface_role;
return wlr_addon_find(&surface->addons, NULL, &surface_addon_impl) != NULL;
}
struct wlr_xwayland_surface *wlr_xwayland_surface_from_wlr_surface(
struct wlr_surface *surface) {
assert(wlr_surface_is_xwayland_surface(surface));
return (struct wlr_xwayland_surface *)surface->role_data;
struct wlr_addon *addon = wlr_addon_find(&surface->addons, NULL, &surface_addon_impl);
assert(addon != NULL);
struct wlr_xwayland_surface *xsurface = wl_container_of(addon, xsurface, surface_addon);
return xsurface;
}
// TODO: replace this with hash table?
@ -386,10 +388,26 @@ static void xsurface_set_net_wm_state(struct wlr_xwayland_surface *xsurface) {
i, property);
}
static void xwayland_surface_destroy(
struct wlr_xwayland_surface *xsurface) {
static void xwayland_surface_set_mapped(struct wlr_xwayland_surface *xsurface, bool mapped);
static void xwayland_surface_dissociate(struct wlr_xwayland_surface *xsurface) {
xwayland_surface_set_mapped(xsurface, false);
// Make sure we're not on the unpaired surface list or we
// could be assigned a surface during surface creation that
// was mapped before this unmap request.
wl_list_remove(&xsurface->unpaired_link);
wl_list_init(&xsurface->unpaired_link);
wl_list_remove(&xsurface->surface_commit.link);
wl_list_remove(&xsurface->surface_precommit.link);
wlr_addon_finish(&xsurface->surface_addon);
xsurface->surface_id = 0;
xsurface->surface = NULL;
}
static void xwayland_surface_destroy(struct wlr_xwayland_surface *xsurface) {
if (xsurface->surface != NULL) {
wlr_surface_destroy_role_object(xsurface->surface);
xwayland_surface_dissociate(xsurface);
}
wl_signal_emit_mutable(&xsurface->events.destroy, xsurface);
@ -823,71 +841,61 @@ static void read_surface_property(struct wlr_xwm *xwm,
free(reply);
}
static void xwayland_surface_role_commit(struct wlr_surface *wlr_surface) {
assert(wlr_surface->role == &xwayland_surface_role);
struct wlr_xwayland_surface *surface = wlr_surface->role_data;
if (!surface->mapped && wlr_surface_has_buffer(surface->surface)) {
surface->mapped = true;
wl_signal_emit_mutable(&surface->events.map, surface);
xwm_set_net_client_list(surface->xwm);
}
static void xwayland_surface_set_mapped(struct wlr_xwayland_surface *xsurface, bool mapped) {
if (xsurface->mapped == mapped) {
return;
}
static void xwayland_surface_role_precommit(struct wlr_surface *wlr_surface,
const struct wlr_surface_state *state) {
assert(wlr_surface->role == &xwayland_surface_role);
struct wlr_xwayland_surface *surface = wlr_surface->role_data;
xsurface->mapped = mapped;
if (mapped) {
wl_signal_emit_mutable(&xsurface->events.map, xsurface);
} else {
wl_signal_emit_mutable(&xsurface->events.unmap, xsurface);
}
xwm_set_net_client_list(xsurface->xwm);
}
static void xwayland_surface_handle_commit(struct wl_listener *listener, void *data) {
struct wlr_xwayland_surface *xsurface = wl_container_of(listener, xsurface, surface_commit);
bool mapped = wlr_surface_has_buffer(xsurface->surface);
xwayland_surface_set_mapped(xsurface, mapped);
}
static void xwayland_surface_handle_precommit(struct wl_listener *listener, void *data) {
struct wlr_xwayland_surface *xsurface = wl_container_of(listener, xsurface, surface_precommit);
const struct wlr_surface_state *state = data;
if (state->committed & WLR_SURFACE_STATE_BUFFER && state->buffer == NULL) {
// This is a NULL commit
if (surface->mapped) {
surface->mapped = false;
wl_signal_emit_mutable(&surface->events.unmap, surface);
xwm_set_net_client_list(surface->xwm);
}
xwayland_surface_set_mapped(xsurface, false);
}
}
static void xwayland_surface_role_destroy(struct wlr_surface *wlr_surface) {
assert(wlr_surface->role == &xwayland_surface_role);
struct wlr_xwayland_surface *surface = wlr_surface->role_data;
if (surface->mapped) {
wl_signal_emit_mutable(&surface->events.unmap, surface);
surface->mapped = false;
xwm_set_net_client_list(surface->xwm);
static void xwayland_surface_handle_addon_destroy(struct wlr_addon *addon) {
struct wlr_xwayland_surface *xsurface = wl_container_of(addon, xsurface, surface_addon);
xwayland_surface_dissociate(xsurface);
}
// Make sure we're not on the unpaired surface list or we
// could be assigned a surface during surface creation that
// was mapped before this unmap request.
wl_list_remove(&surface->unpaired_link);
wl_list_init(&surface->unpaired_link);
surface->surface_id = 0;
surface->surface = NULL;
}
static const struct wlr_surface_role xwayland_surface_role = {
static const struct wlr_addon_interface surface_addon_impl = {
.name = "wlr_xwayland_surface",
.commit = xwayland_surface_role_commit,
.precommit = xwayland_surface_role_precommit,
.destroy = xwayland_surface_role_destroy,
.destroy = xwayland_surface_handle_addon_destroy,
};
static void xwayland_surface_associate(struct wlr_xwm *xwm,
struct wlr_xwayland_surface *xsurface, struct wlr_surface *surface) {
if (!wlr_surface_set_role(surface, &xwayland_surface_role, xsurface,
NULL, 0)) {
wlr_log(WLR_ERROR, "Failed to set xwayland surface role");
return;
}
wl_list_remove(&xsurface->unpaired_link);
wl_list_init(&xsurface->unpaired_link);
xsurface->surface_id = 0;
xsurface->surface = surface;
wlr_addon_init(&xsurface->surface_addon, &surface->addons, NULL, &surface_addon_impl);
xsurface->surface_commit.notify = xwayland_surface_handle_commit;
wl_signal_add(&surface->events.commit, &xsurface->surface_commit);
xsurface->surface_precommit.notify = xwayland_surface_handle_precommit;
wl_signal_add(&surface->events.commit, &xsurface->surface_precommit);
// read all surface properties
const xcb_atom_t props[] = {
@ -1080,7 +1088,7 @@ static void xwm_handle_unmap_notify(struct wlr_xwm *xwm,
}
if (xsurface->surface != NULL) {
wlr_surface_destroy_role_object(xsurface->surface);
xwayland_surface_dissociate(xsurface);
}
xsurface_set_wm_state(xsurface, XCB_ICCCM_WM_STATE_WITHDRAWN);