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luaapi: Fix assertion error on invalid callback

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previousl this would assert in luaW_callwidgetcallback
This commit is contained in:
gfgtdf 2023-12-11 23:30:53 +01:00
parent 81145470c3
commit 9f51db3e47
1 changed files with 3 additions and 0 deletions
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3
src/scripting/lua_widget_methods.cpp
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@ -285,6 +285,9 @@ static int intf_set_dialog_callback(lua_State* L)
if(!wd) { if(!wd) {
throw std::invalid_argument("the widget has no window assigned"); throw std::invalid_argument("the widget has no window assigned");
} }
if(!lua_isfunction(L, 2)) {
return luaL_argerror(L, 2, "callback must be a function");
}
lua_pushvalue(L, 2); lua_pushvalue(L, 2);
bool already_exists = luaW_setwidgetcallback(L, w, wd, "callback"); bool already_exists = luaW_setwidgetcallback(L, w, wd, "callback");