Migrate ProjectManager to dependency injection

- Created IProjectManager interface
- ProjectManager now implements IProjectManager
- Removed ProjectManager::Get() singleton
- Added IEditorContext::GetProjectManager()
- ProjectPanel now uses m_context->GetProjectManager() instead of singleton
- EditorContext owns ProjectManager instance

editor/src/Core/EditorContext.h

@@ -3,7 +3,9 @@
 #include "IEditorContext.h"
 #include "EventBus.h"
 #include "SelectionManager.h"
+#include "IProjectManager.h"
 #include "Managers/SceneManager.h"
+#include "Managers/ProjectManager.h"
 #include <string>
 #include <memory>
 
@@ -15,7 +17,8 @@ public:
     EditorContext() 
         : m_eventBus(std::make_unique<EventBus>())
         , m_selectionManager(std::make_unique<SelectionManager>(*m_eventBus))
-        , m_sceneManager(std::make_unique<SceneManager>()) {
+        , m_sceneManager(std::make_unique<SceneManager>())
+        , m_projectManager(std::make_unique<ProjectManager>()) {
         m_sceneManager->SetSelectionManager(m_selectionManager.get());
     }
     
@@ -35,6 +38,10 @@ public:
         return *m_sceneManager;
     }
     
+    IProjectManager& GetProjectManager() override {
+        return *m_projectManager;
+    }
+    
     void SetProjectPath(const std::string& path) override {
         m_projectPath = path;
     }
@@ -47,8 +54,9 @@ private:
     std::unique_ptr<EventBus> m_eventBus;
     std::unique_ptr<SelectionManager> m_selectionManager;
     std::unique_ptr<SceneManager> m_sceneManager;
+    std::unique_ptr<ProjectManager> m_projectManager;
     std::string m_projectPath;
 };
 
 }
-}
+}

editor/src/Core/IEditorContext.h

@@ -8,6 +8,7 @@ namespace Editor {
 
 class EventBus;
 class ISelectionManager;
+class IProjectManager;
 
 class IEditorContext {
 public:
@@ -16,6 +17,7 @@ public:
     virtual EventBus& GetEventBus() = 0;
     virtual ISelectionManager& GetSelectionManager() = 0;
     virtual void* GetSceneManager() = 0;
+    virtual IProjectManager& GetProjectManager() = 0;
     
     virtual void SetProjectPath(const std::string& path) = 0;
     virtual const std::string& GetProjectPath() const = 0;

editor/src/Core/IProjectManager.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include <string>
+#include <vector>
+#include <memory>
+#include "Core/AssetItem.h"
+
+namespace XCEngine {
+namespace Editor {
+
+class IProjectManager {
+public:
+    virtual ~IProjectManager() = default;
+    
+    virtual std::vector<AssetItemPtr>& GetCurrentItems() = 0;
+    virtual int GetSelectedIndex() const = 0;
+    virtual void SetSelectedIndex(int index) = 0;
+    
+    virtual void NavigateToFolder(const AssetItemPtr& folder) = 0;
+    virtual void NavigateBack() = 0;
+    virtual void NavigateToIndex(size_t index) = 0;
+    virtual bool CanNavigateBack() const = 0;
+    
+    virtual std::string GetCurrentPath() const = 0;
+    virtual size_t GetPathDepth() const = 0;
+    virtual std::string GetPathName(size_t index) const = 0;
+    
+    virtual void Initialize(const std::string& projectPath) = 0;
+    virtual void RefreshCurrentFolder() = 0;
+    
+    virtual void CreateFolder(const std::string& name) = 0;
+    virtual void DeleteItem(int index) = 0;
+    virtual bool MoveItem(const std::string& sourceFullPath, const std::string& destFolderFullPath) = 0;
+    
+    virtual const std::string& GetProjectPath() const = 0;
+};
+
+} // namespace Editor
+} // namespace XCEngine

editor/src/Managers/ProjectManager.cpp

@@ -9,11 +9,6 @@ namespace fs = std::filesystem;
 namespace XCEngine {
 namespace Editor {
 
-ProjectManager& ProjectManager::Get() {
-    static ProjectManager instance;
-    return instance;
-}
-
 std::vector<AssetItemPtr>& ProjectManager::GetCurrentItems() {
     if (m_path.empty()) {
         static std::vector<AssetItemPtr> empty;

editor/src/Managers/ProjectManager.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "Core/AssetItem.h"
+#include "Core/IProjectManager.h"
 #include <vector>
 #include <string>
 #include <memory>
@@ -8,35 +9,31 @@
 namespace XCEngine {
 namespace Editor {
 
-class ProjectManager {
+class ProjectManager : public IProjectManager {
 public:
-    static ProjectManager& Get();
+    std::vector<AssetItemPtr>& GetCurrentItems() override;
+    int GetSelectedIndex() const override { return m_selectedIndex; }
+    void SetSelectedIndex(int index) override { m_selectedIndex = index; }
     
-    std::vector<AssetItemPtr>& GetCurrentItems();
-    int GetSelectedIndex() const { return m_selectedIndex; }
-    void SetSelectedIndex(int index) { m_selectedIndex = index; }
+    void NavigateToFolder(const AssetItemPtr& folder) override;
+    void NavigateBack() override;
+    void NavigateToIndex(size_t index) override;
+    bool CanNavigateBack() const override { return m_path.size() > 1; }
     
-    void NavigateToFolder(const AssetItemPtr& folder);
-    void NavigateBack();
-    void NavigateToIndex(size_t index);
-    bool CanNavigateBack() const { return m_path.size() > 1; }
+    std::string GetCurrentPath() const override;
+    size_t GetPathDepth() const override { return m_path.size(); }
+    std::string GetPathName(size_t index) const override;
     
-    std::string GetCurrentPath() const;
-    size_t GetPathDepth() const { return m_path.size(); }
-    std::string GetPathName(size_t index) const;
+    void Initialize(const std::string& projectPath) override;
+    void RefreshCurrentFolder() override;
     
-    void Initialize(const std::string& projectPath);
-    void RefreshCurrentFolder();
+    void CreateFolder(const std::string& name) override;
+    void DeleteItem(int index) override;
+    bool MoveItem(const std::string& sourceFullPath, const std::string& destFolderFullPath) override;
     
-    void CreateFolder(const std::string& name);
-    void DeleteItem(int index);
-    bool MoveItem(const std::string& sourceFullPath, const std::string& destFolderFullPath);
-    
-    const std::string& GetProjectPath() const { return m_projectPath; }
+    const std::string& GetProjectPath() const override { return m_projectPath; }
 
 private:
-    ProjectManager() = default;
-    
     AssetItemPtr ScanDirectory(const std::wstring& path);
     AssetItemPtr CreateAssetItem(const std::wstring& path, const std::wstring& nameW, bool isFolder);
     std::wstring GetCurrentFullPathW() const;

editor/src/panels/ProjectPanel.cpp

@@ -1,5 +1,6 @@
 #include "ProjectPanel.h"
-#include "Managers/ProjectManager.h"
+#include "Core/IEditorContext.h"
+#include "Core/IProjectManager.h"
 #include "Core/AssetItem.h"
 #include <imgui.h>
 #include <imgui_internal.h>
@@ -13,7 +14,7 @@ ProjectPanel::ProjectPanel() : Panel("Project") {
 }
 
 void ProjectPanel::Initialize(const std::string& projectPath) {
-    ProjectManager::Get().Initialize(projectPath);
+    m_context->GetProjectManager().Initialize(projectPath);
 }
 
 void ProjectPanel::Render() {
@@ -26,7 +27,7 @@ void ProjectPanel::Render() {
     
     ImGui::Begin(m_name.c_str(), nullptr, ImGuiWindowFlags_None);
     
-    auto& manager = ProjectManager::Get();
+    auto& manager = m_context->GetProjectManager();
     
     bool canGoBack = manager.CanNavigateBack();
     ImGui::BeginDisabled(!canGoBack);
@@ -160,7 +161,7 @@ void ProjectPanel::Render() {
 }
 
 void ProjectPanel::RenderAssetItem(const AssetItemPtr& item, int index) {
-    auto& manager = ProjectManager::Get();
+    auto& manager = m_context->GetProjectManager();
     bool isSelected = (manager.GetSelectedIndex() == index);
     
     ImGui::PushID(index);
@@ -287,7 +288,7 @@ void ProjectPanel::RenderAssetItem(const AssetItemPtr& item, int index) {
 }
 
 void ProjectPanel::CreateNewFolder(const std::string& name) {
-    auto& manager = ProjectManager::Get();
+    auto& manager = m_context->GetProjectManager();
     manager.CreateFolder(name);
 }