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6c57980b8f
This is not ideal, because they fall back to position the popup under the cursor, but it's probably better. The right thing to do would be for Windows to use the TITLEBARINFOEX message. We should probably still land that code just so they can eventually use it, seems worth doing anyways. Differential Revision: https://phabricator.services.mozilla.com/D203423
134 lines
3.6 KiB
C++
134 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef COMPATIBILITY_MANAGER_H
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#define COMPATIBILITY_MANAGER_H
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#include <windows.h>
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#include "nsTArray.h"
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#include "nsString.h"
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#include <stdint.h>
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namespace mozilla::a11y {
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enum class SuppressionReasons : uint8_t {
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None = 0,
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Clipboard = 1 << 0,
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SnapLayouts = 1 << 1,
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};
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MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(SuppressionReasons);
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/**
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* Used to get compatibility modes. Note, modes are computed at accessibility
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* start up time and aren't changed during lifetime.
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*/
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class Compatibility {
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public:
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/**
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* Return true if JAWS mode is enabled.
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*/
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static bool IsJAWS() { return !!(sConsumers & (JAWS | OLDJAWS)); }
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/**
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* Return true if using an e10s incompatible Jaws.
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*/
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static bool IsOldJAWS() { return !!(sConsumers & OLDJAWS); }
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/**
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* Return true if WE mode is enabled.
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*/
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static bool IsWE() { return !!(sConsumers & WE); }
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/**
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* Return true if Dolphin mode is enabled.
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*/
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static bool IsDolphin() { return !!(sConsumers & DOLPHIN); }
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/**
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* Return true if JAWS, ZoomText or ZoomText Fusion 2021 or later is being
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* used. These products share common code for interacting with Firefox and
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* all require window emulation to be enabled.
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*/
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static bool IsVisperoShared() { return !!(sConsumers & VISPEROSHARED); }
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/**
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* Return a string describing sConsumers suitable for about:support.
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* Exposed through nsIXULRuntime.accessibilityInstantiator.
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*/
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static void GetHumanReadableConsumersStr(nsAString& aResult);
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/**
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* Initialize compatibility mode information.
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*/
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static void Init();
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static void GetUiaClientPids(nsTArray<DWORD>& aPids);
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/**
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* return true if a known, non-UIA a11y consumer is present
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*/
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static bool HasKnownNonUiaConsumer();
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/**
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* Return true if a module's version is lesser than the given version.
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* Generally, the version should be provided using the MAKE_FILE_VERSION
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* macro.
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* If the version information cannot be retrieved, true is returned; i.e.
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* no version information implies an earlier version.
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*/
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static bool IsModuleVersionLessThan(HMODULE aModuleHandle,
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unsigned long long aVersion);
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static void SuppressA11yForClipboardCopy();
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static void SuppressA11yForSnapLayouts();
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static bool IsA11ySuppressed() {
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return A11ySuppressionReasons() != SuppressionReasons::None;
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}
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static SuppressionReasons A11ySuppressionReasons();
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private:
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Compatibility();
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Compatibility(const Compatibility&);
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Compatibility& operator=(const Compatibility&);
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static void InitConsumers();
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/**
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* List of detected consumers of a11y (used for statistics/telemetry and
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* compat)
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*/
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enum {
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NVDA = 1 << 0,
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JAWS = 1 << 1,
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OLDJAWS = 1 << 2,
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WE = 1 << 3,
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DOLPHIN = 1 << 4,
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SEROTEK = 1 << 5,
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COBRA = 1 << 6,
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ZOOMTEXT = 1 << 7,
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KAZAGURU = 1 << 8,
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YOUDAO = 1 << 9,
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UNKNOWN = 1 << 10,
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UIAUTOMATION = 1 << 11,
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VISPEROSHARED = 1 << 12
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};
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#define CONSUMERS_ENUM_LEN 13
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private:
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static uint32_t sConsumers;
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};
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} // namespace mozilla::a11y
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// Convert the 4 (decimal) components of a DLL version number into a
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// single unsigned long long, as needed by
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// mozilla::a11y::Compatibility::IsModuleVersionLessThan.
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#define MAKE_FILE_VERSION(a, b, c, d) \
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((a##ULL << 48) + (b##ULL << 32) + (c##ULL << 16) + d##ULL)
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#endif
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