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drag: don't set icon's role_data

Browse source 
Currently, an icon surface's role_data is set manually to a struct
wlr_drag_icon, which is hacky, incorrect (as role_data is supposed
to be the surface's role object, and drag icons don't have them), and
will be disallowed by future changes.
This commit is contained in:
Kirill Primak 2023-06-06 17:52:52 +03:00 committed by Simon Ser
parent 30616bcf0c
commit 24a479a501
2 changed files with 19 additions and 11 deletions
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2
include/wlr/types/wlr_data_device.h
View file

@ -98,6 +98,8 @@ struct wlr_drag_icon {
struct wl_signal destroy;
} events;
struct wl_listener surface_destroy;
void *data;
};

28
types/data_device/wlr_drag.c
View file

@ -106,6 +106,13 @@ out:
wl_signal_emit_mutable(&drag->events.focus, drag);
}
static void drag_icon_destroy(struct wlr_drag_icon *icon) {
icon->drag->icon = NULL;
wl_list_remove(&icon->surface_destroy.link);
wl_signal_emit_mutable(&icon->events.destroy, icon);
free(icon);
}
static void drag_destroy(struct wlr_drag *drag) {
if (drag->cancelling) {
return;
@ -145,7 +152,7 @@ static void drag_destroy(struct wlr_drag *drag) {
}
if (drag->icon != NULL) {
wlr_surface_destroy_role_object(drag->icon->surface);
drag_icon_destroy(drag->icon);
}
free(drag);
}
@ -356,20 +363,18 @@ static void drag_icon_surface_role_commit(struct wlr_surface *surface) {
}
}
static void drag_icon_surface_role_destroy(struct wlr_surface *surface) {
assert(surface->role == &drag_icon_surface_role);
struct wlr_drag_icon *icon = surface->role_data;
wl_signal_emit_mutable(&icon->events.destroy, icon);
free(icon);
}
const struct wlr_surface_role drag_icon_surface_role = {
.name = "wl_data_device-icon",
.commit = drag_icon_surface_role_commit,
.destroy = drag_icon_surface_role_destroy,
};
static void drag_icon_handle_surface_destroy(struct wl_listener *listener,
void *data) {
struct wlr_drag_icon *icon =
wl_container_of(listener, icon, surface_destroy);
drag_icon_destroy(icon);
}
static struct wlr_drag_icon *drag_icon_create(struct wlr_drag *drag,
struct wlr_surface *surface) {
struct wlr_drag_icon *icon = calloc(1, sizeof(struct wlr_drag_icon));
@ -382,7 +387,8 @@ static struct wlr_drag_icon *drag_icon_create(struct wlr_drag *drag,
wl_signal_init(&icon->events.destroy);
icon->surface->role_data = icon;
icon->surface_destroy.notify = drag_icon_handle_surface_destroy;
wl_signal_add(&surface->events.destroy, &icon->surface_destroy);
drag_icon_surface_role_commit(surface);