diff options
Diffstat (limited to 'builtin/client/register.lua')
| -rw-r--r-- | builtin/client/register.lua | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/builtin/client/register.lua b/builtin/client/register.lua new file mode 100644 index 000000000..c793195a1 --- /dev/null +++ b/builtin/client/register.lua @@ -0,0 +1,62 @@ + +core.callback_origins = {} + +function core.run_callbacks(callbacks, mode, ...) + assert(type(callbacks) == "table") + local cb_len = #callbacks + if cb_len == 0 then + if mode == 2 or mode == 3 then + return true + elseif mode == 4 or mode == 5 then + return false + end + end + local ret + for i = 1, cb_len do + local cb_ret = callbacks[i](...) + + if mode == 0 and i == 1 or mode == 1 and i == cb_len then + ret = cb_ret + elseif mode == 2 then + if not cb_ret or i == 1 then + ret = cb_ret + end + elseif mode == 3 then + if cb_ret then + return cb_ret + end + ret = cb_ret + elseif mode == 4 then + if (cb_ret and not ret) or i == 1 then + ret = cb_ret + end + elseif mode == 5 and cb_ret then + return cb_ret + end + end + return ret +end + +-- +-- Callback registration +-- + +local function make_registration() + local t = {} + local registerfunc = function(func) + t[#t + 1] = func + core.callback_origins[func] = { + mod = core.get_current_modname() or "??", + name = debug.getinfo(1, "n").name or "??" + } + --local origin = core.callback_origins[func] + --print(origin.name .. ": " .. origin.mod .. " registering cbk " .. tostring(func)) + end + return t, registerfunc +end + +core.registered_on_shutdown, core.register_on_shutdown = make_registration() +core.registered_on_receiving_chat_messages, core.register_on_receiving_chat_messages = make_registration() +core.registered_on_sending_chat_messages, core.register_on_sending_chat_messages = make_registration() + + |