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authorGuido Günther <agx@sigxcpu.org>2021-01-29 16:45:44 +0100
committerSimon Ser <contact@emersion.fr>2021-09-11 09:53:23 +0200
commite479dc1ef0fe5165cd2456927cdf153ce206e023 (patch)
treee44b519d0aa4218b2ede8f21c79d46f534f5db72
parent4e7a8707cce75b4cdc046581ec0c1cc7c0c26e02 (diff)
xwayland: Allow to retrieve startup-id via _NET_STARTUP_INFO
A launchee notifies with a "remove"¹ message when done starting up. Catch these and forward to the compositor. This allows the compositor to end the startup sequence that might have been started by another protocol like xdg-activation. We don't handle other messages since we expect the launcher to use a wayland protocol like xdg-activation. While `_NET_STARTUP_ID` helps to associate toplevels with startup-ids this signals the end of the startup sequence. 1) https://specifications.freedesktop.org/startup-notification-spec/startup-notification-latest.txt
-rw-r--r--include/wlr/xwayland.h6
-rw-r--r--include/xwayland/xwm.h3
-rw-r--r--xwayland/xwayland.c1
-rw-r--r--xwayland/xwm.c86
4 files changed, 96 insertions, 0 deletions
diff --git a/include/wlr/xwayland.h b/include/wlr/xwayland.h
index a91638eb..3689b8b3 100644
--- a/include/wlr/xwayland.h
+++ b/include/wlr/xwayland.h
@@ -72,6 +72,7 @@ struct wlr_xwayland {
struct {
struct wl_signal ready;
struct wl_signal new_surface;
+ struct wl_signal remove_startup_info;
} events;
/**
@@ -232,6 +233,11 @@ struct wlr_xwayland_move_event {
struct wlr_xwayland_surface *surface;
};
+struct wlr_xwayland_remove_startup_info_event {
+ const char *id;
+ xcb_window_t window;
+};
+
struct wlr_xwayland_resize_event {
struct wlr_xwayland_surface *surface;
uint32_t edges;
diff --git a/include/xwayland/xwm.h b/include/xwayland/xwm.h
index 5e6bfee3..0cdf6ea1 100644
--- a/include/xwayland/xwm.h
+++ b/include/xwayland/xwm.h
@@ -56,6 +56,8 @@ enum atom_name {
TIMESTAMP,
DELETE,
NET_STARTUP_ID,
+ NET_STARTUP_INFO,
+ NET_STARTUP_INFO_BEGIN,
NET_WM_WINDOW_TYPE_NORMAL,
NET_WM_WINDOW_TYPE_UTILITY,
NET_WM_WINDOW_TYPE_TOOLTIP,
@@ -113,6 +115,7 @@ struct wlr_xwm {
// Surfaces in bottom-to-top stacking order, for _NET_CLIENT_LIST_STACKING
struct wl_list surfaces_in_stack_order; // wlr_xwayland_surface::stack_link
struct wl_list unpaired_surfaces; // wlr_xwayland_surface::unpaired_link
+ struct wl_list pending_startup_ids; // pending_startup_id
struct wlr_drag *drag;
struct wlr_xwayland_surface *drag_focus;
diff --git a/xwayland/xwayland.c b/xwayland/xwayland.c
index dc782284..86e8c6eb 100644
--- a/xwayland/xwayland.c
+++ b/xwayland/xwayland.c
@@ -81,6 +81,7 @@ struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
wl_signal_init(&xwayland->events.new_surface);
wl_signal_init(&xwayland->events.ready);
+ wl_signal_init(&xwayland->events.remove_startup_info);
struct wlr_xwayland_server_options options = {
.lazy = lazy,
diff --git a/xwayland/xwm.c b/xwayland/xwm.c
index b8b152fb..313bfc0a 100644
--- a/xwayland/xwm.c
+++ b/xwayland/xwm.c
@@ -61,6 +61,8 @@ const char *const atom_map[ATOM_LAST] = {
[TIMESTAMP] = "TIMESTAMP",
[DELETE] = "DELETE",
[NET_STARTUP_ID] = "_NET_STARTUP_ID",
+ [NET_STARTUP_INFO] = "_NET_STARTUP_INFO",
+ [NET_STARTUP_INFO_BEGIN] = "_NET_STARTUP_INFO_BEGIN",
[NET_WM_WINDOW_TYPE_NORMAL] = "_NET_WM_WINDOW_TYPE_NORMAL",
[NET_WM_WINDOW_TYPE_UTILITY] = "_NET_WM_WINDOW_TYPE_UTILITY",
[NET_WM_WINDOW_TYPE_TOOLTIP] = "_NET_WM_WINDOW_TYPE_TOOLTIP",
@@ -89,6 +91,14 @@ const char *const atom_map[ATOM_LAST] = {
[NET_CLIENT_LIST_STACKING] = "_NET_CLIENT_LIST_STACKING",
};
+#define STARTUP_INFO_REMOVE_PREFIX "remove: ID="
+struct pending_startup_id {
+ char *msg;
+ size_t len;
+ xcb_window_t window;
+ struct wl_list link;
+};
+
static const struct wlr_surface_role xwayland_surface_role;
bool wlr_surface_is_xwayland_surface(struct wlr_surface *surface) {
@@ -1361,6 +1371,73 @@ static void xwm_handle_net_active_window_message(struct wlr_xwm *xwm,
wlr_signal_emit_safe(&surface->events.request_activate, surface);
}
+static void pending_startup_id_destroy(struct pending_startup_id *pending) {
+ wl_list_remove(&pending->link);
+ free(pending->msg);
+ free(pending);
+}
+
+static void xwm_handle_net_startup_info_message(struct wlr_xwm *xwm,
+ xcb_client_message_event_t *ev) {
+ struct pending_startup_id *pending, *curr = NULL;
+ wl_list_for_each(pending, &xwm->pending_startup_ids, link) {
+ if (pending->window == ev->window) {
+ curr = pending;
+ break;
+ }
+ }
+
+ char *start;
+ size_t buf_len = sizeof(ev->data);
+ if (curr) {
+ curr->msg = realloc(curr->msg, curr->len + buf_len);
+ if (!curr->msg) {
+ pending_startup_id_destroy(curr);
+ return;
+ }
+ start = curr->msg + curr->len;
+ curr->len += buf_len;
+ } else {
+ curr = calloc(1, sizeof(struct pending_startup_id));
+ if (!curr)
+ return;
+ curr->window = ev->window;
+ curr->msg = malloc(buf_len);
+ if (!curr->msg) {
+ free(curr);
+ return;
+ }
+ start = curr->msg;
+ curr->len = buf_len;
+ wl_list_insert(&xwm->pending_startup_ids, &curr->link);
+ }
+
+ char *id = NULL;
+ const char *data = (const char *)ev->data.data8;
+ for (size_t i = 0; i < buf_len; i++) {
+ start[i] = data[i];
+ if (start[i] == '\0') {
+ if (strncmp(curr->msg, STARTUP_INFO_REMOVE_PREFIX,
+ strlen(STARTUP_INFO_REMOVE_PREFIX)) == 0 &&
+ strlen(curr->msg) > strlen(STARTUP_INFO_REMOVE_PREFIX)) {
+ id = curr->msg + strlen(STARTUP_INFO_REMOVE_PREFIX);
+ break;
+ } else {
+ wlr_log(WLR_ERROR, "Unhandled message '%s'\n", curr->msg);
+ pending_startup_id_destroy(curr);
+ return;
+ }
+ }
+ }
+
+ if (id) {
+ struct wlr_xwayland_remove_startup_info_event data = { id, ev->window };
+ wlr_log(WLR_DEBUG, "Got startup id: %s", id);
+ wlr_signal_emit_safe(&xwm->xwayland->events.remove_startup_info, &data);
+ pending_startup_id_destroy(curr);
+ }
+}
+
static void xwm_handle_wm_change_state_message(struct wlr_xwm *xwm,
xcb_client_message_event_t *ev) {
struct wlr_xwayland_surface *xsurface = lookup_surface(xwm, ev->window);
@@ -1399,6 +1476,9 @@ static void xwm_handle_client_message(struct wlr_xwm *xwm,
xwm_handle_wm_protocols_message(xwm, ev);
} else if (ev->type == xwm->atoms[NET_ACTIVE_WINDOW]) {
xwm_handle_net_active_window_message(xwm, ev);
+ } else if (ev->type == xwm->atoms[NET_STARTUP_INFO] ||
+ ev->type == xwm->atoms[NET_STARTUP_INFO_BEGIN]) {
+ xwm_handle_net_startup_info_message(xwm, ev);
} else if (ev->type == xwm->atoms[WM_CHANGE_STATE]) {
xwm_handle_wm_change_state_message(xwm, ev);
} else if (!xwm_handle_selection_client_message(xwm, ev)) {
@@ -1718,6 +1798,11 @@ void xwm_destroy(struct wlr_xwm *xwm) {
wl_list_remove(&xwm->compositor_destroy.link);
xcb_disconnect(xwm->xcb_conn);
+ struct pending_startup_id *pending, *next;
+ wl_list_for_each_safe(pending, next, &xwm->pending_startup_ids, link) {
+ pending_startup_id_destroy(pending);
+ }
+
xwm->xwayland->xwm = NULL;
free(xwm);
}
@@ -1958,6 +2043,7 @@ struct wlr_xwm *xwm_create(struct wlr_xwayland *xwayland, int wm_fd) {
wl_list_init(&xwm->surfaces);
wl_list_init(&xwm->surfaces_in_stack_order);
wl_list_init(&xwm->unpaired_surfaces);
+ wl_list_init(&xwm->pending_startup_ids);
xwm->ping_timeout = 10000;
xwm->xcb_conn = xcb_connect_to_fd(wm_fd, NULL);