From 6515948e3f5b97f90446536f72e99d71e96f9de7 Mon Sep 17 00:00:00 2001 From: crupest Date: Fri, 9 Nov 2018 19:59:57 +0800 Subject: Add AnyMap. --- src/any_map.cpp | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/any_map.cpp (limited to 'src/any_map.cpp') diff --git a/src/any_map.cpp b/src/any_map.cpp new file mode 100644 index 00000000..6f9ada66 --- /dev/null +++ b/src/any_map.cpp @@ -0,0 +1,33 @@ +#include "any_map.h" + +namespace cru +{ + AnyMap::ListenerToken AnyMap::RegisterValueChangeListener(const String& key, const Listener& listener) + { + const auto token = current_listener_token_++; + map_[key].second.push_back(token); + listeners_.emplace(token, listener); + return token; + } + + void AnyMap::UnregisterValueChangeListener(const ListenerToken token) + { + const auto find_result = listeners_.find(token); + if (find_result != listeners_.cend()) + listeners_.erase(find_result); + } + + void AnyMap::InvokeListeners(std::list& listener_list, const std::any& value) + { + auto i = listener_list.cbegin(); + while (i != listener_list.cend()) + { + auto current_i = i++; + const auto find_result = listeners_.find(*current_i); + if (find_result != listeners_.cend()) + find_result->second(value); + else + listener_list.erase(current_i); // otherwise remove the invalid listener token. + } + } +} -- cgit v1.2.3