refactor: rename the atom directory to shell

shell/browser/notifications/win/win32_desktop_notifications/common.h

@@ -0,0 +1,68 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
+#define ATOM_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
+
+#include <Windows.h>
+
+namespace atom {
+
+struct NotificationData {
+  DesktopNotificationController* controller = nullptr;
+
+  std::wstring caption;
+  std::wstring body_text;
+  HBITMAP image = NULL;
+
+  NotificationData() = default;
+
+  ~NotificationData() {
+    if (image)
+      DeleteObject(image);
+  }
+
+  NotificationData(const NotificationData& other) = delete;
+  NotificationData& operator=(const NotificationData& other) = delete;
+};
+
+template <typename T>
+constexpr T ScaleForDpi(T value, unsigned dpi, unsigned source_dpi = 96) {
+  return value * dpi / source_dpi;
+}
+
+struct ScreenMetrics {
+  UINT dpi_x, dpi_y;
+
+  ScreenMetrics() {
+    typedef HRESULT WINAPI GetDpiForMonitor_t(HMONITOR, int, UINT*, UINT*);
+
+    auto GetDpiForMonitor = reinterpret_cast<GetDpiForMonitor_t*>(
+        GetProcAddress(GetModuleHandle(TEXT("shcore")), "GetDpiForMonitor"));
+
+    if (GetDpiForMonitor) {
+      auto* monitor = MonitorFromPoint({}, MONITOR_DEFAULTTOPRIMARY);
+      if (GetDpiForMonitor(monitor, 0, &dpi_x, &dpi_y) == S_OK)
+        return;
+    }
+
+    HDC hdc = GetDC(NULL);
+    dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
+    dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
+    ReleaseDC(NULL, hdc);
+  }
+
+  template <class T>
+  T X(T value) const {
+    return ScaleForDpi(value, dpi_x);
+  }
+  template <class T>
+  T Y(T value) const {
+    return ScaleForDpi(value, dpi_y);
+  }
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_