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Introduce wl_signal

Browse source 
This is mostly renaming and consolidating the listener_list pattern
into something more concise and reusable.
This commit is contained in:
Kristian Høgsberg 2012-04-12 15:29:48 -04:00
parent 5535f155d8
commit 6802eaa68a
3 changed files with 82 additions and 69 deletions
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60
src/wayland-server.h
View file

@ -114,11 +114,53 @@ wl_client_new_object(struct wl_client *client,
const struct wl_interface *interface,
const void *implementation, void *data);
struct wl_listener {
struct wl_list link;
void (*notify)(struct wl_listener *listener, void *data);
};
struct wl_signal {
struct wl_list listener_list;
};
static inline void
wl_signal_init(struct wl_signal *signal)
{
wl_list_init(&signal->listener_list);
}
static inline void
wl_signal_add(struct wl_signal *signal, struct wl_listener *listener)
{
wl_list_insert(signal->listener_list.prev, &listener->link);
}
static inline struct wl_listener *
wl_signal_get(struct wl_signal *signal, void *notify)
{
struct wl_listener *l;
wl_list_for_each(l, &signal->listener_list, link)
if (l->notify == notify)
return l;
return NULL;
}
static inline void
wl_signal_emit(struct wl_signal *signal, void *data)
{
struct wl_listener *l, *next;
wl_list_for_each_safe(l, next, &signal->listener_list, link)
l->notify(l, data);
}
struct wl_resource {
struct wl_object object;
void (*destroy)(struct wl_resource *resource);
struct wl_list link;
struct wl_list destroy_listener_list;
struct wl_signal destroy_signal;
struct wl_client *client;
void *data;
};
@ -129,12 +171,6 @@ struct wl_buffer {
uint32_t busy_count;
};
struct wl_listener {
struct wl_list link;
void (*func)(struct wl_listener *listener,
struct wl_resource *resource);
};
struct wl_surface {
struct wl_resource resource;
};
@ -183,12 +219,6 @@ struct wl_data_source {
void (*cancel)(struct wl_data_source *source);
};
struct wl_selection_listener {
void (*func)(struct wl_selection_listener *listener,
struct wl_input_device *device);
struct wl_list link;
};
struct wl_input_device {
struct wl_list resource_list;
struct wl_resource *pointer_focus_resource;
@ -226,11 +256,11 @@ struct wl_input_device {
struct wl_pointer_grab drag_grab;
struct wl_surface *drag_surface;
struct wl_listener drag_icon_listener;
struct wl_list drag_icon_listener_list;
struct wl_signal drag_icon_signal;
struct wl_data_source *selection_data_source;
struct wl_listener selection_data_source_listener;
struct wl_list selection_listener_list;
struct wl_signal selection_signal;
};