add PopupManager

include/NazaraEditor/Core.hpp

@@ -10,6 +10,7 @@
 #include <NazaraEditor/Core/Application/EditorLogger.hpp>
 #include <NazaraEditor/Core/Application/Level.hpp>
 #include <NazaraEditor/Core/Components/NameComponent.hpp>
+#include <NazaraEditor/Core/UI/PopupManager.hpp>
 #include <NazaraEditor/Core/UI/Window.hpp>
 #include <NazaraEditor/Core/Reflection/Math.hpp>
 #include <NazaraEditor/Core/Reflection/Core.hpp>

include/NazaraEditor/Core/Application/BaseApplication.hpp

@@ -10,6 +10,7 @@
 #include <NazaraEditor/Core/Application/Action.hpp>
 #include <NazaraEditor/Core/Application/ActionStack.hpp>
 #include <NazaraEditor/Core/Application/Level.hpp>
+#include <NazaraEditor/Core/UI/PopupManager.hpp>
 #include <NazaraEditor/Core/UI/Window.hpp>
 #include <NazaraImgui/NazaraImgui.hpp>
 
@@ -71,6 +72,8 @@ namespace Nz
 
 		std::filesystem::path m_resourceFolder;
 		Nz::ActionStack m_actionStack;
+		Nz::EditorPopupManager m_popupManager;
+
 		Nz::Level m_level;
 	};
 }

include/NazaraEditor/Core/UI/PopupManager.hpp

@@ -0,0 +1,67 @@
+#pragma once
+
+#include <NazaraEditor/Core/Core.hpp>
+
+#include <memory>
+#include <vector>
+
+namespace Nz
+{
+	struct EditorPopupParameters
+	{
+		struct Choice
+		{
+			std::string name;
+			std::function<void(void)> callback;
+		};
+		std::string title;
+		std::string description;
+		std::vector<Choice> choices;
+	};
+
+	class EditorPopup
+		: public Nz::ImguiHandler
+	{
+	public:
+		EditorPopup(uint64_t id, const EditorPopupParameters& parameters);
+		~EditorPopup();
+
+		void OnRenderImgui() override;
+
+		uint64_t GetId() const { return m_id; }
+
+	private:
+		uint64_t m_id;
+		EditorPopupParameters m_parameters;
+	};
+
+	class NAZARAEDITOR_CORE_API EditorPopupManager
+	{
+	public:
+		static EditorPopupManager* Instance();
+
+		void Update();
+
+		uint64_t CreatePopup(const EditorPopupParameters& parameters);
+		void DestroyPopup(uint64_t popupId);
+
+	private:
+		EditorPopupManager();
+		~EditorPopupManager();
+
+		EditorPopupManager(const EditorPopupManager&) = delete;
+		EditorPopupManager& operator=(const EditorPopupManager&) = delete;
+
+		EditorPopupManager(EditorPopup&&) noexcept = delete;
+		EditorPopupManager& operator=(EditorPopup&&) = delete;
+
+		void DestroyPopupInternal(uint64_t popupId);
+
+		uint64_t m_currentIndex;
+		std::vector<std::unique_ptr<EditorPopup>> m_popups;
+		std::vector<uint64_t> m_popupsToDelete;
+
+		static EditorPopupManager* s_instance;
+		friend class EditorBaseApplication;
+	};
+}