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-rw-r--r--widget/windows/nsUXThemeData.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/widget/windows/nsUXThemeData.h b/widget/windows/nsUXThemeData.h
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+++ b/widget/windows/nsUXThemeData.h
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+/* vim: se cin sw=2 ts=2 et : */
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef __UXThemeData_h__
+#define __UXThemeData_h__
+#include <windows.h>
+#include <uxtheme.h>
+
+#include "nscore.h"
+#include "mozilla/LookAndFeel.h"
+#include "mozilla/Maybe.h"
+#include "WinUtils.h"
+
+#include "nsWindowDefs.h"
+
+enum nsUXThemeClass {
+ eUXButton = 0,
+ eUXEdit,
+ eUXRebar,
+ eUXToolbar,
+ eUXProgress,
+ eUXTab,
+ eUXTrackbar,
+ eUXCombobox,
+ eUXHeader,
+ eUXListview,
+ eUXMenu,
+ eUXNumClasses
+};
+
+class nsUXThemeData {
+ // This class makes sure we don't attempt to open a theme if the previous
+ // loading attempt has failed because OpenThemeData is a heavy task and
+ // it's less likely that the API returns a different result.
+ class ThemeHandle final {
+ mozilla::Maybe<HANDLE> mHandle;
+
+ public:
+ ThemeHandle() = default;
+ ~ThemeHandle();
+
+ // Disallow copy and move
+ ThemeHandle(const ThemeHandle&) = delete;
+ ThemeHandle(ThemeHandle&&) = delete;
+ ThemeHandle& operator=(const ThemeHandle&) = delete;
+ ThemeHandle& operator=(ThemeHandle&&) = delete;
+
+ operator HANDLE();
+ void OpenOnce(HWND aWindow, LPCWSTR aClassList);
+ void Close();
+ };
+
+ static ThemeHandle sThemes[eUXNumClasses];
+ static const wchar_t* GetClassName(nsUXThemeClass);
+
+ public:
+ static bool sIsHighContrastOn;
+
+ static void Invalidate();
+ static HANDLE GetTheme(nsUXThemeClass cls);
+ static HMODULE GetThemeDLL();
+
+ static void UpdateNativeThemeInfo();
+ static bool IsHighContrastOn() { return sIsHighContrastOn; }
+};
+#endif // __UXThemeData_h__