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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /accessible/windows/msaa/Compatibility.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | accessible/windows/msaa/Compatibility.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/accessible/windows/msaa/Compatibility.h b/accessible/windows/msaa/Compatibility.h new file mode 100644 index 0000000000..e5c03bfea1 --- /dev/null +++ b/accessible/windows/msaa/Compatibility.h @@ -0,0 +1,127 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* 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 COMPATIBILITY_MANAGER_H +#define COMPATIBILITY_MANAGER_H + +#include <windows.h> +#include "mozilla/Maybe.h" +#include "nsString.h" + +#include <stdint.h> + +namespace mozilla { +namespace a11y { + +/** + * Used to get compatibility modes. Note, modes are computed at accessibility + * start up time and aren't changed during lifetime. + */ +class Compatibility { + public: + /** + * Return true if JAWS mode is enabled. + */ + static bool IsJAWS() { return !!(sConsumers & (JAWS | OLDJAWS)); } + + /** + * Return true if using an e10s incompatible Jaws. + */ + static bool IsOldJAWS() { return !!(sConsumers & OLDJAWS); } + + /** + * Return true if WE mode is enabled. + */ + static bool IsWE() { return !!(sConsumers & WE); } + + /** + * Return true if Dolphin mode is enabled. + */ + static bool IsDolphin() { return !!(sConsumers & DOLPHIN); } + + /** + * Return true if JAWS, ZoomText or ZoomText Fusion 2021 or later is being + * used. These products share common code for interacting with Firefox and + * all require window emulation to be enabled. + */ + static bool IsVisperoShared() { return !!(sConsumers & VISPEROSHARED); } + + /** + * Return a string describing sConsumers suitable for about:support. + * Exposed through nsIXULRuntime.accessibilityInstantiator. + */ + static void GetHumanReadableConsumersStr(nsAString& aResult); + + /** + * Initialize compatibility mode information. + */ + static void Init(); + + static Maybe<bool> OnUIAMessage(WPARAM aWParam, LPARAM aLParam); + + static Maybe<DWORD> GetUiaRemotePid() { return sUiaRemotePid; } + + /** + * return true if a known, non-UIA a11y consumer is present + */ + static bool HasKnownNonUiaConsumer(); + + /** + * Return true if a module's version is lesser than the given version. + * Generally, the version should be provided using the MAKE_FILE_VERSION + * macro. + * If the version information cannot be retrieved, true is returned; i.e. + * no version information implies an earlier version. + */ + static bool IsModuleVersionLessThan(HMODULE aModuleHandle, + unsigned long long aVersion); + + static void SuppressA11yForClipboardCopy(); + static bool IsA11ySuppressedForClipboardCopy(); + + private: + Compatibility(); + Compatibility(const Compatibility&); + Compatibility& operator=(const Compatibility&); + + static void InitConsumers(); + + /** + * List of detected consumers of a11y (used for statistics/telemetry and + * compat) + */ + enum { + NVDA = 1 << 0, + JAWS = 1 << 1, + OLDJAWS = 1 << 2, + WE = 1 << 3, + DOLPHIN = 1 << 4, + SEROTEK = 1 << 5, + COBRA = 1 << 6, + ZOOMTEXT = 1 << 7, + KAZAGURU = 1 << 8, + YOUDAO = 1 << 9, + UNKNOWN = 1 << 10, + UIAUTOMATION = 1 << 11, + VISPEROSHARED = 1 << 12 + }; +#define CONSUMERS_ENUM_LEN 13 + + private: + static uint32_t sConsumers; + static Maybe<DWORD> sUiaRemotePid; +}; + +} // namespace a11y +} // namespace mozilla + +// Convert the 4 (decimal) components of a DLL version number into a +// single unsigned long long, as needed by +// mozilla::a11y::Compatibility::IsModuleVersionLessThan. +#define MAKE_FILE_VERSION(a, b, c, d) \ + ((a##ULL << 48) + (b##ULL << 32) + (c##ULL << 16) + d##ULL) + +#endif |