From 67dd012c0f49898f1734c46d3bb264f59d056a8e Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Mon, 17 Jan 2022 22:55:09 +0800
Subject: ...

---
 src/ui/mapper/Mapper.cpp         |  8 ++++++++
 src/ui/mapper/MapperRegistry.cpp | 29 +++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 src/ui/mapper/Mapper.cpp
 create mode 100644 src/ui/mapper/MapperRegistry.cpp

(limited to 'src/ui/mapper')

diff --git a/src/ui/mapper/Mapper.cpp b/src/ui/mapper/Mapper.cpp
new file mode 100644
index 00000000..93a83d8a
--- /dev/null
+++ b/src/ui/mapper/Mapper.cpp
@@ -0,0 +1,8 @@
+#include "cru/ui/mapper/Mapper.hpp"
+
+#include <typeindex>
+
+namespace cru::ui::mapper {
+MapperBase::MapperBase(std::type_index type_index)
+    : type_index_(std::move(type_index)) {}
+}  // namespace cru::ui::mapper
diff --git a/src/ui/mapper/MapperRegistry.cpp b/src/ui/mapper/MapperRegistry.cpp
new file mode 100644
index 00000000..e445a7d0
--- /dev/null
+++ b/src/ui/mapper/MapperRegistry.cpp
@@ -0,0 +1,29 @@
+#include "cru/ui/mapper/MapperRegistry.hpp"
+
+namespace cru::ui::mapper {
+MapperRegistry::MapperRegistry() {}
+
+MapperRegistry::~MapperRegistry() {
+  for (auto mapper : mapper_list_) {
+    delete mapper;
+  }
+}
+
+void MapperRegistry::RegisterMapper(MapperBase *mapper) {
+  if (std::find(mapper_list_.cbegin(), mapper_list_.cend(), mapper) !=
+      mapper_list_.cend()) {
+    throw Exception(u"This mapper is already registered.");
+  }
+
+  mapper_list_.push_back(mapper);
+}
+
+void MapperRegistry::UnregisterMapper(MapperBase *mapper) {
+  auto it = std::find(mapper_list_.begin(), mapper_list_.end(), mapper);
+  if (it == mapper_list_.end()) {
+    throw Exception(u"This mapper is not registered.");
+  }
+
+  mapper_list_.erase(it);
+}
+}  // namespace cru::ui::mapper
-- 
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