client: emit signal on list changes

Signed-off-by: Julien Danjou <julien@danjou.info>

client.c

@@ -609,6 +609,8 @@ client_manage(xcb_window_t w, xcb_get_geometry_reply_t *wgeom, int phys_screen,
     if(globalconf.hooks.clients != LUA_REFNIL)
         luaA_dofunction_from_registry(globalconf.L, globalconf.hooks.clients, 0, 0);
 
+    luaA_class_emit_signal(globalconf.L, &client_class, "list", 0);
+
     /* call hook */
     if(globalconf.hooks.manage != LUA_REFNIL)
     {
@@ -1099,6 +1101,8 @@ client_unmanage(client_t *c)
     if(globalconf.hooks.clients != LUA_REFNIL)
         luaA_dofunction_from_registry(globalconf.L, globalconf.hooks.clients, 0, 0);
 
+    luaA_class_emit_signal(globalconf.L, &client_class, "list", 0);
+
     window_state_set(c->win, XCB_WM_STATE_WITHDRAWN);
 
     titlebar_client_detach(c);
@@ -1270,6 +1274,8 @@ luaA_client_swap(lua_State *L)
         /* Call hook to notify list change */
         if(globalconf.hooks.clients != LUA_REFNIL)
             luaA_dofunction_from_registry(L, globalconf.hooks.clients, 0, 0);
+
+        luaA_class_emit_signal(globalconf.L, &client_class, "list", 0);
     }
 
     return 0;

lib/awful/layout/init.lua.in

@@ -133,7 +133,7 @@ end)
 
 hooks.padding.register(function(screen) on_arrange(screen) end)
 capi.client.add_signal("focus", function(c) on_arrange(c.screen) end)
-hooks.clients.register(function()
+capi.client.add_signal("list", function()
                                    for screen = 1, capi.screen.count() do
                                        on_arrange(screen)
                                    end

lib/awful/widget/tasklist.lua.in

@@ -56,7 +56,7 @@ function new(label, buttons)
     local data = setmetatable({}, { __mode = 'k' })
     local u = function () tasklist_update(w, buttons, label, data, widgets) end
     hooks.tags.register(u)
-    hooks.clients.register(u)
+    capi.client.add_signal("list", u)
     hooks.tagged.register(u)
     capi.client.add_signal("focus", u)
     capi.client.add_signal("unfocus", u)