1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/windows/msaa/nsWinUtils.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,87 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:expandtab:shiftwidth=2:tabstop=2:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#ifndef nsWinUtils_h_
1.12 +#define nsWinUtils_h_
1.13 +
1.14 +#include <windows.h>
1.15 +
1.16 +#include "nsIDOMCSSStyleDeclaration.h"
1.17 +#include "nsCOMPtr.h"
1.18 +#include "nsRefPtrHashtable.h"
1.19 +
1.20 +class nsIArray;
1.21 +class nsIContent;
1.22 +
1.23 +namespace mozilla {
1.24 +namespace a11y {
1.25 +
1.26 +class DocAccessible;
1.27 +
1.28 +const LPCWSTR kClassNameRoot = L"MozillaUIWindowClass";
1.29 +const LPCWSTR kClassNameTabContent = L"MozillaContentWindowClass";
1.30 +
1.31 +class nsWinUtils
1.32 +{
1.33 +public:
1.34 + /**
1.35 + * Return computed styles declaration for the given node.
1.36 + *
1.37 + * @note Please use it carefully since it can shutdown the accessible tree
1.38 + * you operate on.
1.39 + */
1.40 + static already_AddRefed<nsIDOMCSSStyleDeclaration>
1.41 + GetComputedStyleDeclaration(nsIContent* aContent);
1.42 +
1.43 + /**
1.44 + * Start window emulation if presence of specific AT is detected.
1.45 + */
1.46 + static bool MaybeStartWindowEmulation();
1.47 +
1.48 + /**
1.49 + * Free resources used for window emulation.
1.50 + */
1.51 + static void ShutdownWindowEmulation();
1.52 +
1.53 + /**
1.54 + * Return true if window emulation is started.
1.55 + */
1.56 + static bool IsWindowEmulationStarted();
1.57 +
1.58 + /**
1.59 + * Helper to register window class.
1.60 + */
1.61 + static void RegisterNativeWindow(LPCWSTR aWindowClass);
1.62 +
1.63 + /**
1.64 + * Helper to create a window.
1.65 + */
1.66 + static HWND CreateNativeWindow(LPCWSTR aWindowClass, HWND aParentWnd,
1.67 + int aX, int aY, int aWidth, int aHeight,
1.68 + bool aIsActive);
1.69 +
1.70 + /**
1.71 + * Helper to show window.
1.72 + */
1.73 + static void ShowNativeWindow(HWND aWnd);
1.74 +
1.75 + /**
1.76 + * Helper to hide window.
1.77 + */
1.78 + static void HideNativeWindow(HWND aWnd);
1.79 +
1.80 + /**
1.81 + * Cache for HWNDs of windows created for document accessibles in windows
1.82 + * emulation mode.
1.83 + */
1.84 + static nsRefPtrHashtable<nsPtrHashKey<void>, DocAccessible>* sHWNDCache;
1.85 +};
1.86 +
1.87 +} // namespace a11y
1.88 +} // namespace mozilla
1.89 +
1.90 +#endif
