зеркало из https://github.com/mozilla/gecko-dev.git
175 строки
4.9 KiB
C++
175 строки
4.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 <windows.h>
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#include "mozwrlbase.h"
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#include "nsServiceManagerUtils.h"
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#include "WindowsUIUtils.h"
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#include "nsIObserverService.h"
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#include "nsIBaseWindow.h"
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#include "nsIDocshell.h"
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#include "nsIAppShellService.h"
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#include "nsAppShellCID.h"
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#include "nsIXULWindow.h"
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#include "mozilla/Services.h"
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#include "mozilla/WindowsVersion.h"
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#include "nsString.h"
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#include "nsIWidget.h"
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#include <windows.ui.viewmanagement.h>
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#pragma comment(lib, "runtimeobject.lib")
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using namespace mozilla;
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using namespace ABI::Windows::UI;
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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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using namespace ABI::Windows::Foundation;
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/* All of this is win10 stuff and we're compiling against win81 headers
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* for now, so we may need to do some legwork: */
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#ifndef UserInteractionMode
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namespace ABI {
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namespace Windows {
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namespace UI {
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namespace ViewManagement {
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enum UserInteractionMode {
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UserInteractionMode_Mouse = 0,
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UserInteractionMode_Touch = 1
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};
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}
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}
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}
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}
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#endif
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#ifndef RuntimeClass_Windows_UI_ViewManagement_UIViewSettings
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#define RuntimeClass_Windows_UI_ViewManagement_UIViewSettings L"Windows.UI.ViewManagement.UIViewSettings"
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#endif
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#ifndef IUIViewSettings
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namespace ABI {
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namespace Windows {
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namespace UI {
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namespace ViewManagement {
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interface IUIViewSettings;
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MIDL_INTERFACE("C63657F6-8850-470D-88F8-455E16EA2C26")
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IUIViewSettings : public IInspectable
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{
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public:
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virtual HRESULT STDMETHODCALLTYPE get_UserInteractionMode(UserInteractionMode *value) = 0;
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};
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extern const __declspec(selectany) IID & IID_IUIViewSettings = __uuidof(IUIViewSettings);
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}
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}
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}
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}
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#endif
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#ifndef IUIViewSettingsInterop
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typedef interface IUIViewSettingsInterop IUIViewSettingsInterop;
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MIDL_INTERFACE("3694dbf9-8f68-44be-8ff5-195c98ede8a6")
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IUIViewSettingsInterop : public IInspectable
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{
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public:
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virtual HRESULT STDMETHODCALLTYPE GetForWindow(HWND hwnd, REFIID riid, void **ppv) = 0;
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};
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#endif
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WindowsUIUtils::WindowsUIUtils() :
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mInTabletMode(eTabletModeUnknown)
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{
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}
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WindowsUIUtils::~WindowsUIUtils()
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{
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}
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/*
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* Implement the nsISupports methods...
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*/
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NS_IMPL_ISUPPORTS(WindowsUIUtils,
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nsIWindowsUIUtils)
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NS_IMETHODIMP
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WindowsUIUtils::GetInTabletMode(bool* aResult)
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{
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if (mInTabletMode == eTabletModeUnknown) {
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UpdateTabletModeState();
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}
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*aResult = mInTabletMode == eTabletModeOn;
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return NS_OK;
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}
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NS_IMETHODIMP
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WindowsUIUtils::UpdateTabletModeState()
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{
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if (!IsWin10OrLater()) {
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return NS_OK;
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}
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nsCOMPtr<nsIAppShellService> appShell(do_GetService(NS_APPSHELLSERVICE_CONTRACTID));
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nsCOMPtr<nsIXULWindow> hiddenWindow;
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nsresult rv = appShell->GetHiddenWindow(getter_AddRefs(hiddenWindow));
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if (NS_FAILED(rv)) {
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return rv;
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}
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nsCOMPtr<nsIDocShell> docShell;
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rv = hiddenWindow->GetDocShell(getter_AddRefs(docShell));
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if (NS_FAILED(rv) || !docShell) {
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return rv;
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}
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nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(docShell));
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if (!baseWindow)
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIWidget> widget;
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baseWindow->GetMainWidget(getter_AddRefs(widget));
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if (!widget)
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return NS_ERROR_FAILURE;
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HWND winPtr = (HWND)widget->GetNativeData(NS_NATIVE_WINDOW);
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ComPtr<IUIViewSettingsInterop> uiViewSettingsInterop;
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HRESULT hr = GetActivationFactory(
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HStringReference(RuntimeClass_Windows_UI_ViewManagement_UIViewSettings).Get(),
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&uiViewSettingsInterop);
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if (SUCCEEDED(hr)) {
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ComPtr<IUIViewSettings> uiViewSettings;
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hr = uiViewSettingsInterop->GetForWindow(winPtr, IID_PPV_ARGS(&uiViewSettings));
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if (SUCCEEDED(hr)) {
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UserInteractionMode mode;
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hr = uiViewSettings->get_UserInteractionMode(&mode);
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if (SUCCEEDED(hr)) {
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TabletModeState oldTabletModeState = mInTabletMode;
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mInTabletMode = (mode == UserInteractionMode_Touch) ? eTabletModeOn : eTabletModeOff;
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if (mInTabletMode != oldTabletModeState) {
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nsCOMPtr<nsIObserverService> observerService =
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mozilla::services::GetObserverService();
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NS_NAMED_LITERAL_STRING(tabletMode, "tablet-mode");
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NS_NAMED_LITERAL_STRING(normalMode, "normal-mode");
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observerService->NotifyObservers(nullptr, "tablet-mode-change",
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((mInTabletMode == eTabletModeOn) ? tabletMode.get() : normalMode.get()));
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}
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}
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}
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}
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return NS_OK;
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}
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