windows

2025-12-02 15:46:19 +01:00
parent e0fd77d7de
commit 920658485f
17 changed files with 1704 additions and 3 deletions
@@ -0,0 +1,158 @@
+#include "mpv_container.h"
+
+#include <ShObjIdl.h>
+#include <dwmapi.h>
+#include <fstream>
+
+#include "mpv_core.h"
+#include "utils.h"
+
+static void LogToFile(const char* message) {
+  std::ofstream log("C:\\Users\\admin\\mpv_debug.log", std::ios::app);
+  if (log.is_open()) {
+    log << message << std::endl;
+    log.close();
+  }
+  OutputDebugStringA(message);
+  OutputDebugStringA("\n");
+}
+
+namespace mpv {
+
+MpvContainer* MpvContainer::GetInstance() { return instance_.get(); }
+
+HWND MpvContainer::Create() {
+  LogToFile("MpvContainer::Create called");
+
+  auto window_class = WNDCLASSEX{};
+  ::SecureZeroMemory(&window_class, sizeof(window_class));
+  window_class.cbSize = sizeof(window_class);
+  // Don't use CS_DROPSHADOW, and avoid redraw styles that might cause issues
+  window_class.style = 0;
+  window_class.lpfnWndProc = WindowProc;
+  window_class.hInstance = GetModuleHandle(nullptr);
+  window_class.lpszClassName = kClassName;
+  window_class.hCursor = ::LoadCursorW(nullptr, IDC_ARROW);
+  window_class.hbrBackground = ::CreateSolidBrush(RGB(0, 0, 0));
+
+  ATOM atom = ::RegisterClassExW(&window_class);
+  char msg[256];
+  snprintf(msg, sizeof(msg), "MpvContainer::Create - RegisterClassExW returned: %d", atom);
+  LogToFile(msg);
+
+  // Use WS_POPUP for a borderless window without title bar.
+  // Use WS_EX_TOOLWINDOW | WS_EX_NOREDIRECTIONBITMAP to prevent shadow and DWM effects.
+  handle_ = ::CreateWindowExW(
+      WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE | WS_EX_NOREDIRECTIONBITMAP,
+      kClassName, kWindowName, WS_POPUP,
+      0, 0, 100, 100, nullptr, nullptr,
+      GetModuleHandle(nullptr), nullptr);
+
+  if (!handle_) {
+    DWORD error = GetLastError();
+    snprintf(msg, sizeof(msg), "MpvContainer::Create - CreateWindow failed with error %lu", error);
+    LogToFile(msg);
+  } else {
+    snprintf(msg, sizeof(msg), "MpvContainer::Create - handle_: %p", handle_);
+    LogToFile(msg);
+  }
+
+  // Disable DWM animations on the container.
+  auto disable_window_transitions = TRUE;
+  DwmSetWindowAttribute(handle_, DWMWA_TRANSITIONS_FORCEDISABLED,
+                        &disable_window_transitions,
+                        sizeof(disable_window_transitions));
+
+  return handle_;
+}
+
+HWND MpvContainer::Get(HWND flutter_window) {
+  LogToFile("MpvContainer::Get called");
+  char msg[256];
+  snprintf(msg, sizeof(msg), "MpvContainer::Get - flutter_window: %p, handle_: %p", flutter_window, handle_);
+  LogToFile(msg);
+
+  if (!handle_) {
+    LogToFile("MpvContainer::Get - handle_ is null, calling Create()");
+    Create();
+  }
+
+  RECT window_rect;
+  ::GetWindowRect(flutter_window, &window_rect);
+  snprintf(msg, sizeof(msg), "MpvContainer::Get - window_rect: %ld,%ld,%ld,%ld",
+           window_rect.left, window_rect.top, window_rect.right, window_rect.bottom);
+  LogToFile(msg);
+
+  ::SetWindowPos(handle_, flutter_window, window_rect.left, window_rect.top,
+                 window_rect.right - window_rect.left,
+                 window_rect.bottom - window_rect.top, SWP_NOACTIVATE);
+  ::SetWindowLongPtr(handle_, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(flutter_window));
+
+  // Remove taskbar entry using ITaskbarList3.
+  ITaskbarList3* taskbar = nullptr;
+  HRESULT hr = ::CoCreateInstance(CLSID_TaskbarList, 0, CLSCTX_INPROC_SERVER,
+                                  IID_PPV_ARGS(&taskbar));
+  if (SUCCEEDED(hr) && taskbar) {
+    taskbar->DeleteTab(handle_);
+    taskbar->Release();
+  }
+
+  ::ShowWindow(handle_, SW_SHOWNOACTIVATE);
+  ::SetFocus(flutter_window);
+
+  snprintf(msg, sizeof(msg), "MpvContainer::Get - returning handle_: %p", handle_);
+  LogToFile(msg);
+  return handle_;
+}
+
+LRESULT CALLBACK MpvContainer::WindowProc(HWND const window,
+                                          UINT const message,
+                                          WPARAM const wparam,
+                                          LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY: {
+      ::PostQuitMessage(0);
+      return 0;
+    }
+    case WM_MOUSEMOVE: {
+      // Redirect focus to Flutter window.
+      auto* core = MpvCore::GetInstance();
+      if (core) {
+        core->SetHitTestBehavior(0);
+      }
+      auto user_data = ::GetWindowLongPtr(window, GWLP_USERDATA);
+      if (user_data) {
+        ::SetForegroundWindow(reinterpret_cast<HWND>(user_data));
+      }
+      break;
+    }
+    case WM_ERASEBKGND: {
+      // Prevent erasing to avoid flicker.
+      return 1;
+    }
+    case WM_SIZE:
+    case WM_MOVE:
+    case WM_MOVING:
+    case WM_ACTIVATE:
+    case WM_WINDOWPOSCHANGED: {
+      auto* core = MpvCore::GetInstance();
+      if (core) {
+        core->SetHitTestBehavior(0);
+      }
+      auto user_data = ::GetWindowLongPtr(window, GWLP_USERDATA);
+      if (user_data) {
+        ::SetForegroundWindow(reinterpret_cast<HWND>(user_data));
+      }
+      break;
+    }
+    default:
+      break;
+  }
+  return ::DefWindowProc(window, message, wparam, lparam);
+}
+
+std::unique_ptr<MpvContainer> MpvContainer::instance_ =
+    std::make_unique<MpvContainer>();
+
+}  // namespace mpv