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screen: Add a "list" signal 

Similarly to what we do with the client list, this signal is emitted
whenever the list of screens changes.

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2016-10-23 15:00:27 +02:00
parent c218b1da72
commit c347c0a54c
1 changed files with 14 additions and 0 deletions
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14
objects/screen.c
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@ -79,6 +79,10 @@
* @signal removed
*/
/** This signal is emitted when the list of available screens changes.
* @signal .list
*/
/**
* The primary screen.
*
@ -603,6 +607,7 @@ screen_refresh(void)
screen_array_t new_screens;
lua_State *L = globalconf_get_lua_State();
bool list_changed = false;
screen_array_init(&new_screens);
if (globalconf.have_randr_15)
@ -624,6 +629,8 @@ screen_refresh(void)
* globalconf.screens reference this screen now */
luaA_object_push(L, *new_screen);
luaA_object_ref(L, -1);
list_changed = true;
}
}
@ -642,6 +649,8 @@ screen_refresh(void)
lua_pop(L, 1);
luaA_object_unref(L, old_screen);
old_screen->valid = false;
list_changed = true;
}
}
@ -656,6 +665,9 @@ screen_refresh(void)
screen_array_wipe(&new_screens);
screen_update_primary();
if (list_changed)
luaA_class_emit_signal(L, &screen_class, "list", 0);
}
/** Return the squared distance of the given screen to the coordinates.
@ -1088,6 +1100,7 @@ luaA_screen_fake_add(lua_State *L)
s->geometry.height = height;
screen_added(L, s);
luaA_class_emit_signal(L, &screen_class, "list", 0);
luaA_object_push(L, s);
return 1;
@ -1109,6 +1122,7 @@ luaA_screen_fake_remove(lua_State *L)
luaA_object_push(L, s);
screen_removed(L, -1);
lua_pop(L, 1);
luaA_class_emit_signal(L, &screen_class, "list", 0);
luaA_object_unref(L, s);
s->valid = false;