The Tor Browser / file comparison
comparison: accessible/src/windows/msaa/nsWinUtils.h
accessible/src/windows/msaa/nsWinUtils.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:24512d7fa1ac |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:expandtab:shiftwidth=2:tabstop=2: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #ifndef nsWinUtils_h_ | |
| 9 #define nsWinUtils_h_ | |
| 10 | |
| 11 #include <windows.h> | |
| 12 | |
| 13 #include "nsIDOMCSSStyleDeclaration.h" | |
| 14 #include "nsCOMPtr.h" | |
| 15 #include "nsRefPtrHashtable.h" | |
| 16 | |
| 17 class nsIArray; | |
| 18 class nsIContent; | |
| 19 | |
| 20 namespace mozilla { | |
| 21 namespace a11y { | |
| 22 | |
| 23 class DocAccessible; | |
| 24 | |
| 25 const LPCWSTR kClassNameRoot = L"MozillaUIWindowClass"; | |
| 26 const LPCWSTR kClassNameTabContent = L"MozillaContentWindowClass"; | |
| 27 | |
| 28 class nsWinUtils | |
| 29 { | |
| 30 public: | |
| 31 /** | |
| 32 * Return computed styles declaration for the given node. | |
| 33 * | |
| 34 * @note Please use it carefully since it can shutdown the accessible tree | |
| 35 * you operate on. | |
| 36 */ | |
| 37 static already_AddRefed<nsIDOMCSSStyleDeclaration> | |
| 38 GetComputedStyleDeclaration(nsIContent* aContent); | |
| 39 | |
| 40 /** | |
| 41 * Start window emulation if presence of specific AT is detected. | |
| 42 */ | |
| 43 static bool MaybeStartWindowEmulation(); | |
| 44 | |
| 45 /** | |
| 46 * Free resources used for window emulation. | |
| 47 */ | |
| 48 static void ShutdownWindowEmulation(); | |
| 49 | |
| 50 /** | |
| 51 * Return true if window emulation is started. | |
| 52 */ | |
| 53 static bool IsWindowEmulationStarted(); | |
| 54 | |
| 55 /** | |
| 56 * Helper to register window class. | |
| 57 */ | |
| 58 static void RegisterNativeWindow(LPCWSTR aWindowClass); | |
| 59 | |
| 60 /** | |
| 61 * Helper to create a window. | |
| 62 */ | |
| 63 static HWND CreateNativeWindow(LPCWSTR aWindowClass, HWND aParentWnd, | |
| 64 int aX, int aY, int aWidth, int aHeight, | |
| 65 bool aIsActive); | |
| 66 | |
| 67 /** | |
| 68 * Helper to show window. | |
| 69 */ | |
| 70 static void ShowNativeWindow(HWND aWnd); | |
| 71 | |
| 72 /** | |
| 73 * Helper to hide window. | |
| 74 */ | |
| 75 static void HideNativeWindow(HWND aWnd); | |
| 76 | |
| 77 /** | |
| 78 * Cache for HWNDs of windows created for document accessibles in windows | |
| 79 * emulation mode. | |
| 80 */ | |
| 81 static nsRefPtrHashtable<nsPtrHashKey<void>, DocAccessible>* sHWNDCache; | |
| 82 }; | |
| 83 | |
| 84 } // namespace a11y | |
| 85 } // namespace mozilla | |
| 86 | |
| 87 #endif |
