fix: windows stretch issue

windows/runner/mpv/mpv_container.cpp

@@ -1,33 +1,25 @@
 #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");
+MpvContainer::~MpvContainer() {
+  if (taskbar_) {
+    taskbar_->Release();
+    taskbar_ = nullptr;
+  }
+}
 
+HWND MpvContainer::Create() {
   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);
@@ -35,10 +27,7 @@ HWND MpvContainer::Create() {
   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);
+  ::RegisterClassExW(&window_class);
 
   // Use WS_POPUP for a borderless window without title bar.
   // Use WS_EX_TOOLWINDOW | WS_EX_NOREDIRECTIONBITMAP to prevent shadow and DWM effects.
@@ -48,15 +37,6 @@ HWND MpvContainer::Create() {
       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,
@@ -67,42 +47,30 @@ HWND MpvContainer::Create() {
 }
 
 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();
+  // Remove taskbar entry using cached ITaskbarList3.
+  if (!taskbar_) {
+    ::CoCreateInstance(CLSID_TaskbarList, 0, CLSCTX_INPROC_SERVER,
+                       IID_PPV_ARGS(&taskbar_));
+  }
+  if (taskbar_) {
+    taskbar_->DeleteTab(handle_);
   }
 
   ::ShowWindow(handle_, SW_SHOWNOACTIVATE);
   ::SetFocus(flutter_window);
 
-  snprintf(msg, sizeof(msg), "MpvContainer::Get - returning handle_: %p", handle_);
-  LogToFile(msg);
   return handle_;
 }