5 files changed, 36 insertions, 23 deletions
diff --git a/include/cru/ui/ThemeManager.hpp b/include/cru/ui/ThemeManager.hpp
index 07b5f57b..7d52fa48 100644
--- a/include/cru/ui/ThemeManager.hpp
+++ b/include/cru/ui/ThemeManager.hpp
@@ -4,6 +4,9 @@
 #include "cru/common/Event.hpp"
 #include "cru/common/Exception.hpp"
 #include "cru/platform/graphics/Brush.hpp"
+#include "cru/ui/mapper/MapperRegistry.hpp"
+#include "cru/ui/style/StyleRuleSet.hpp"
+#include "cru/xml/XmlNode.hpp"
 
 #include <unordered_map>
 
@@ -29,22 +32,36 @@ class CRU_UI_API ThemeManager : public Object {
   CRU_DELETE_COPY(ThemeManager)
   CRU_DELETE_MOVE(ThemeManager)
 
-  ~ThemeManager() override = default;
+  ~ThemeManager() override;
 
   IEvent<std::nullptr_t>* ThemeResourceChangeEvent() {
     return &theme_resource_change_event_;
   }
 
-  gsl::not_null<std::shared_ptr<platform::graphics::IBrush>> GetBrush(
-      StringView key);
+  void ReadResourcesFile(const String& file_path);
 
- private:
-  void Init();
+  template <typename T>
+  T GetResource(const String& key) {
+    auto find_result = theme_resource_map_.find(key);
+    if (find_result == theme_resource_map_.cend()) {
+      throw ThemeResourceKeyNotExistException(
+          Format(u"Theme resource key \"%s\" not exist.", key));
+    }
+
+    auto mapper_registry = mapper::MapperRegistry::GetInstance();
+    auto mapper = mapper_registry->GetMapper<T>();
+    return mapper->MapFromXml(find_result->second);
+  }
+
+  std::shared_ptr<platform::graphics::IBrush> GetResourceBrush(
+      const String& key);
+
+  std::shared_ptr<style::StyleRuleSet> GetResourceStyleRuleSet(
+      const String& key);
 
  private:
   Event<std::nullptr_t> theme_resource_change_event_;
-  std::unordered_map<String, String> theme_resource_map_;
-  std::unordered_map<String, std::shared_ptr<platform::graphics::IBrush>>
-      brushes_;
+  std::unique_ptr<xml::XmlElementNode> theme_resource_xml_root_;
+  std::unordered_map<String, xml::XmlElementNode*> theme_resource_map_;
 };
 }  // namespace cru::ui
diff --git a/include/cru/ui/UiManager.hpp b/include/cru/ui/UiManager.hpp
index d16adc4f..9ac7f416 100644
--- a/include/cru/ui/UiManager.hpp
+++ b/include/cru/ui/UiManager.hpp
@@ -18,11 +18,6 @@ struct ThemeResources {
   std::shared_ptr<platform::graphics::IBrush> text_brush;
   std::shared_ptr<platform::graphics::IBrush> text_selection_brush;
   std::shared_ptr<platform::graphics::IBrush> caret_brush;
-
-  std::shared_ptr<style::StyleRuleSet> button_style;
-  std::shared_ptr<style::StyleRuleSet> text_box_style;
-
-  style::StyleRuleSet menu_item_style;
 };
 
 class CRU_UI_API UiManager : public Object {
diff --git a/include/cru/ui/controls/Control.hpp b/include/cru/ui/controls/Control.hpp
index ed6233a9..c51643be 100644
--- a/include/cru/ui/controls/Control.hpp
+++ b/include/cru/ui/controls/Control.hpp
@@ -67,7 +67,7 @@ class CRU_UI_API Control : public Object {
   void SetCursor(std::shared_ptr<platform::gui::ICursor> cursor);
 
  public:
-  style::StyleRuleSet* GetStyleRuleSet();
+  std::shared_ptr<style::StyleRuleSet> GetStyleRuleSet();
 
   //*************** region: events ***************
  public:
@@ -151,7 +151,7 @@ class CRU_UI_API Control : public Object {
 
   std::shared_ptr<platform::gui::ICursor> cursor_ = nullptr;
 
-  std::unique_ptr<style::StyleRuleSet> style_rule_set_;
+  std::shared_ptr<style::StyleRuleSet> style_rule_set_;
   std::unique_ptr<style::StyleRuleSetBind> style_rule_set_bind_;
 };
 }  // namespace cru::ui::controls
diff --git a/include/cru/ui/mapper/Mapper.hpp b/include/cru/ui/mapper/Mapper.hpp
index ceda8e0f..c52bec70 100644
--- a/include/cru/ui/mapper/Mapper.hpp
+++ b/include/cru/ui/mapper/Mapper.hpp
@@ -69,11 +69,11 @@ class CRU_UI_API BasicMapper : public MapperBase {
 
   T MapFromXml(xml::XmlElementNode* node) {
     if (!SupportMapFromXml()) {
-      throw new Exception(u"This mapper does not support map from xml.");
+      throw Exception(u"This mapper does not support map from xml.");
     }
 
     if (!XmlElementIsOfThisType(node)) {
-      throw new Exception(u"This xml element is not of mapping type.");
+      throw Exception(u"This xml element is not of mapping type.");
     }
 
     return DoMapFromXml(node);
diff --git a/include/cru/ui/style/StyleRuleSet.hpp b/include/cru/ui/style/StyleRuleSet.hpp
index b3c4f683..32b02d78 100644
--- a/include/cru/ui/style/StyleRuleSet.hpp
+++ b/include/cru/ui/style/StyleRuleSet.hpp
@@ -9,7 +9,7 @@ namespace cru::ui::style {
 class StyleRuleSet : public Object {
  public:
   StyleRuleSet() = default;
-  explicit StyleRuleSet(StyleRuleSet* parent);
+  explicit StyleRuleSet(std::shared_ptr<StyleRuleSet> parent);
 
   CRU_DELETE_COPY(StyleRuleSet)
   CRU_DELETE_MOVE(StyleRuleSet)
@@ -17,8 +17,8 @@ class StyleRuleSet : public Object {
   ~StyleRuleSet() override = default;
 
  public:
-  StyleRuleSet* GetParent() const { return parent_; }
-  void SetParent(StyleRuleSet* parent);
+  std::shared_ptr<StyleRuleSet> GetParent() const { return parent_; }
+  void SetParent(std::shared_ptr<StyleRuleSet> parent);
 
   gsl::index GetSize() const { return static_cast<gsl::index>(rules_.size()); }
   const std::vector<StyleRule>& GetRules() const { return rules_; }
@@ -47,7 +47,7 @@ class StyleRuleSet : public Object {
  private:
   Event<std::nullptr_t> change_event_;
 
-  StyleRuleSet* parent_ = nullptr;
+  std::shared_ptr<StyleRuleSet> parent_ = nullptr;
   EventRevokerGuard parent_change_event_guard_;
 
   std::vector<StyleRule> rules_;
@@ -55,7 +55,8 @@ class StyleRuleSet : public Object {
 
 class StyleRuleSetBind {
  public:
-  StyleRuleSetBind(controls::Control* control, StyleRuleSet* ruleset);
+  StyleRuleSetBind(controls::Control* control,
+                   std::shared_ptr<StyleRuleSet> ruleset);
 
   CRU_DELETE_COPY(StyleRuleSetBind)
   CRU_DELETE_MOVE(StyleRuleSetBind)
@@ -69,7 +70,7 @@ class StyleRuleSetBind {
 
  private:
   controls::Control* control_;
-  StyleRuleSet* ruleset_;
+  std::shared_ptr<StyleRuleSet> ruleset_;
 
   // child first, parent last.
   std::vector<StyleRuleSet*> ruleset_chain_cache_;