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Source/Core/WindowManager.cppm

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+module;
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+export module VUI:WindowManager;
+
+import :Window;
+import :PlatformWindow;
+import :Time;
+
+namespace VUI {
+
+export struct WindowManager {
+  static Ref<Window> Create(uint32_t width, uint32_t height,
+                            const std::string &title);
+  static Ref<Window> Create(const WindowSpecification &);
+  static void Manage(const Ref<Window> &window);
+
+  static void Update();
+  static void Close(Ref<Window> &);
+  static void CloseByTitle(const std::string &title);
+  static void CloseAll();
+  static bool HasOpenWindows();
+
+protected:
+  std::vector<Ref<Window>> m_Windows{};
+  friend Window;
+};
+
+static WindowManager s_WindowManager = {};
+
+Ref<Window> WindowManager::Create(uint32_t width, uint32_t height,
+                                  const std::string &title) {
+  return Create(WindowSpecification{width, height, title});
+}
+
+Ref<Window> WindowManager::Create(const WindowSpecification &specification) {
+  if (GetTimeOffset() == 0)
+    SetTime(0);
+
+  auto window = Windowing::CreateWindowRef();
+  window->m_Specification = specification;
+  window->m_WindowHandle = s_Handle++;
+  window->createWindow();
+  Manage(window);
+  return window;
+}
+
+void WindowManager::Manage(const Ref<Window> &window) {
+  s_WindowManager.m_Windows.push_back(window);
+}
+
+void WindowManager::Update() {
+  Input::PostFrameUpdate();
+  UpdateDeltaTime();
+  for (auto &window : s_WindowManager.m_Windows) {
+    window->pullEvents();
+  }
+  std::erase_if(s_WindowManager.m_Windows,
+                [](Ref<Window> &window) { return !window->isOpen(); });
+}
+
+void WindowManager::Close(Ref<Window> &refWindow) {
+  if (!refWindow)
+    return;
+  refWindow->close();
+  std::erase_if(s_WindowManager.m_Windows, [&refWindow](auto &window) {
+    return !window->isOpen() || window == refWindow;
+  });
+}
+void WindowManager::CloseByTitle(const std::string &title) {
+  std::erase_if(s_WindowManager.m_Windows, [&title](Ref<Window> &window) {
+    if (window->getTitle() == title) {
+      window->close();
+    }
+    return !window->isOpen();
+  });
+}
+void WindowManager::CloseAll() {
+  for (auto &window : s_WindowManager.m_Windows) {
+    window->close();
+  }
+  s_WindowManager.m_Windows.clear();
+}
+bool WindowManager::HasOpenWindows() {
+  return !s_WindowManager.m_Windows.empty();
+}
+
+} // namespace VUI