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https://github.com/mozilla/gecko-dev.git
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Backed out changeset 60b8f96f35ec (bug 1645571) for causing bug 1907766.
This commit is contained in:
Ryan VanderMeulen
parent
8f0f27d8a7
commit
5f14dd1f7c
@ -1,51 +0,0 @@
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=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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#include "gtest/gtest.h"
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#include <windows.h>
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#include "MockWinWidget.h"
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#include "mozilla/widget/OSKInputPaneManager.h"
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using namespace mozilla;
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using namespace mozilla::widget;
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class WinInputPaneTest : public ::testing::Test {
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protected:
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HWND CreateNativeWindow(DWORD aStyle, DWORD aExStyle) {
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mMockWinWidget =
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MockWinWidget::Create(WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | aStyle,
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aExStyle, LayoutDeviceIntRect(0, 0, 100, 100));
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EXPECT_NE(nullptr, mMockWinWidget.get());
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HWND hwnd = mMockWinWidget->GetWnd();
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::ShowWindow(hwnd, SW_SHOWNORMAL);
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EXPECT_TRUE(UpdateWindow(hwnd));
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return hwnd;
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}
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void ExpectHasEventHandler(HWND aHwnd, bool aValue) {
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Maybe<bool> hasEventHandler =
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OSKInputPaneManager::HasInputPaneEventHandlerService(aHwnd);
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EXPECT_TRUE(hasEventHandler.isSome() && hasEventHandler.value() == aValue);
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}
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RefPtr<MockWinWidget> mMockWinWidget;
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};
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TEST_F(WinInputPaneTest, HasNoEventHandlerAtCreation) {
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HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, /* aExStyle = */ 0);
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ExpectHasEventHandler(hwnd, false);
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}
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TEST_F(WinInputPaneTest, HasEventHandlerAfterShowOnScreenKeyboard) {
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HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, /* aExStyle = */ 0);
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ExpectHasEventHandler(hwnd, false);
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OSKInputPaneManager::ShowOnScreenKeyboard(hwnd);
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ExpectHasEventHandler(hwnd, true);
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}
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@ -13,7 +13,6 @@ if CONFIG["OS_ARCH"] == "WINNT":
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UNIFIED_SOURCES += [
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"MockWinWidget.cpp",
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"TestWinHeaderOnlyUtils.cpp",
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"TestWinInputPane.cpp",
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"TestWinMessageLoggingUtils.cpp",
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"TestWinWindowOcclusionTracker.cpp",
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"TestWinWindowOcclusionTrackerInteractive.cpp",
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@ -7,17 +7,13 @@
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#define NTDDI_VERSION NTDDI_WIN10_RS1
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#include "OSKInputPaneManager.h"
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#include "mozilla/Maybe.h"
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#include "nscore.h"
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#include "nsDebug.h"
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#include "nsWindowsHelpers.h"
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#ifndef __MINGW32__
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# include <inputpaneinterop.h>
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# include <windows.ui.viewmanagement.h>
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# include <wrl.h>
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using ABI::Windows::Foundation::ITypedEventHandler;
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using namespace ABI::Windows::UI::ViewManagement;
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using namespace Microsoft::WRL;
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using namespace Microsoft::WRL::Wrappers;
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@ -27,7 +23,7 @@ namespace mozilla {
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namespace widget {
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#ifndef __MINGW32__
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static ComPtr<IInputPane> GetInputPaneInternal(HWND aHwnd) {
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static ComPtr<IInputPane2> GetInputPane(HWND aHwnd) {
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ComPtr<IInputPaneInterop> inputPaneInterop;
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HRESULT hr = RoGetActivationFactory(
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HStringReference(RuntimeClass_Windows_UI_ViewManagement_InputPane).Get(),
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@ -42,44 +38,6 @@ static ComPtr<IInputPane> GetInputPaneInternal(HWND aHwnd) {
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return nullptr;
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}
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return inputPane;
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}
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static ComPtr<IInputPane2> GetInputPane(HWND aHwnd) {
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ComPtr<IInputPane> inputPane = GetInputPaneInternal(aHwnd);
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if (!inputPane) {
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return nullptr;
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}
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// Bug 1645571: We need to ensure that we have a SID_InputPaneEventHandler
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// window service registered on aHwnd, or explorer.exe will mess with our
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// window through twinui!CKeyboardOcclusionMitigation::_MitigateWindow.
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Maybe<bool> hasEventHandler =
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OSKInputPaneManager::HasInputPaneEventHandlerService(aHwnd);
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if (hasEventHandler.isSome() && !hasEventHandler.value()) {
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// Run IInputPane::add_Hiding once to register the window service.
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EventRegistrationToken token{};
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HRESULT registered = inputPane->add_Hiding(
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Callback<ITypedEventHandler<InputPane*, InputPaneVisibilityEventArgs*>>(
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[](IInputPane* aInputPane, IInputPaneVisibilityEventArgs* aArgs) {
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return S_OK;
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})
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.Get(),
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&token);
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// Validate our assumption that we now have the window service registered.
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hasEventHandler =
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OSKInputPaneManager::HasInputPaneEventHandlerService(aHwnd);
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if (SUCCEEDED(registered) &&
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!(hasEventHandler.isSome() && hasEventHandler.value())) {
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// If our assumption is wrong, we undo the operation. This prevents a
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// memory leak where we would be adding a new callback every time the
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// on-screen keyboard is shown.
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inputPane->remove_Hiding(token);
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}
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}
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ComPtr<IInputPane2> inputPane2;
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inputPane.As(&inputPane2);
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return inputPane2;
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@ -139,42 +97,5 @@ void OSKInputPaneManager::DismissOnScreenKeyboard(HWND aWnd) {
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#endif
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}
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// static
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Maybe<bool> OSKInputPaneManager::HasInputPaneEventHandlerService(HWND aHwnd) {
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using CoreIsWindowServiceSupportedFn =
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HRESULT(WINAPI*)(HWND aHwnd, LPCGUID aServiceSid);
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static auto sCoreIsWindowServiceSupported =
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[]() -> CoreIsWindowServiceSupportedFn {
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HMODULE twinApiAppCore = LoadLibrarySystem32(L"twinapi.appcore.dll");
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if (!twinApiAppCore) {
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return nullptr;
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}
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return reinterpret_cast<CoreIsWindowServiceSupportedFn>(
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::GetProcAddress(twinApiAppCore, reinterpret_cast<LPCSTR>(8)));
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}();
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if (!sCoreIsWindowServiceSupported) {
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return Nothing();
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}
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// {958e2b85-b035-4590-9bc5-ef01779b45dc}
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static const GUID sSID_InputPaneEventHandler{
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0x958e2b85,
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0xb035,
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0x4590,
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{0x9b, 0xc5, 0xef, 0x1, 0x77, 0x9b, 0x45, 0xdc}};
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// Since we are calling a Windows internal function here, the function
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// signature is subject to arbitrary changes from Microsoft. This could
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// result in wrong results or even crashing. Ensure that if things are so bad
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// that we are about to crash, we just return Nothing instead.
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MOZ_SEH_TRY {
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return Some(SUCCEEDED(
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sCoreIsWindowServiceSupported(aHwnd, &sSID_InputPaneEventHandler)));
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}
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MOZ_SEH_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { return Nothing(); }
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}
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} // namespace widget
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} // namespace mozilla
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@ -7,8 +7,6 @@
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#ifndef mozilla_widget_OSKInputPaneManager_h
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#define mozilla_widget_OSKInputPaneManager_h
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#include "mozilla/Maybe.h"
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#include <windows.h>
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namespace mozilla {
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@ -18,7 +16,6 @@ class OSKInputPaneManager final {
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public:
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static void ShowOnScreenKeyboard(HWND aHwnd);
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static void DismissOnScreenKeyboard(HWND aHwnd);
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static Maybe<bool> HasInputPaneEventHandlerService(HWND aHwnd);
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};
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} // namespace widget
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@ -55,7 +55,6 @@ EXPORTS.mozilla.widget += [
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"InProcessWinCompositorWidget.h",
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"JumpListBuilder.h",
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"nsWindowLoggedMessages.h",
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"OSKInputPaneManager.h",
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"WinCompositorWidget.h",
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"WinCompositorWindowThread.h",
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"WindowsEMF.h",
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