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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include <windows.h>
#include <winsdkver.h>
#include <wrl.h>
#include "nsServiceManagerUtils.h"
#include "WindowsUIUtils.h"
#include "nsIObserverService.h"
#include "nsIBaseWindow.h"
#include "nsIDocShell.h"
#include "nsIAppShellService.h"
#include "nsAppShellCID.h"
#include "nsIXULWindow.h"
#include "mozilla/Services.h"
#include "mozilla/WindowsVersion.h"
#include "nsString.h"
#include "nsIWidget.h"
/* mingw currently doesn't support windows.ui.viewmanagement.h, so we disable it until it's fixed. */
#ifndef __MINGW32__
#include <windows.ui.viewmanagement.h>
#pragma comment(lib, "runtimeobject.lib")
using namespace mozilla;
using namespace ABI::Windows::UI;
using namespace ABI::Windows::UI::ViewManagement;
using namespace Microsoft::WRL;
using namespace Microsoft::WRL::Wrappers;
using namespace ABI::Windows::Foundation;
/* All of this is win10 stuff and we're compiling against win81 headers
* for now, so we may need to do some legwork: */
#if WINVER_MAXVER < 0x0A00
namespace ABI {
namespace Windows {
namespace UI {
namespace ViewManagement {
enum UserInteractionMode {
UserInteractionMode_Mouse = 0,
UserInteractionMode_Touch = 1
};
}
}
}
}
#endif
#ifndef RuntimeClass_Windows_UI_ViewManagement_UIViewSettings
#define RuntimeClass_Windows_UI_ViewManagement_UIViewSettings L"Windows.UI.ViewManagement.UIViewSettings"
#endif
#if WINVER_MAXVER < 0x0A00
namespace ABI {
namespace Windows {
namespace UI {
namespace ViewManagement {
interface IUIViewSettings;
MIDL_INTERFACE("C63657F6-8850-470D-88F8-455E16EA2C26")
IUIViewSettings : public IInspectable
{
public:
virtual HRESULT STDMETHODCALLTYPE get_UserInteractionMode(UserInteractionMode *value) = 0;
};
extern const __declspec(selectany) IID & IID_IUIViewSettings = __uuidof(IUIViewSettings);
}
}
}
}
#endif
#ifndef IUIViewSettingsInterop
typedef interface IUIViewSettingsInterop IUIViewSettingsInterop;
MIDL_INTERFACE("3694dbf9-8f68-44be-8ff5-195c98ede8a6")
IUIViewSettingsInterop : public IInspectable
{
public:
virtual HRESULT STDMETHODCALLTYPE GetForWindow(HWND hwnd, REFIID riid, void **ppv) = 0;
};
#endif
#endif
WindowsUIUtils::WindowsUIUtils() :
mInTabletMode(eTabletModeUnknown)
{
}
WindowsUIUtils::~WindowsUIUtils()
{
}
/*
* Implement the nsISupports methods...
*/
NS_IMPL_ISUPPORTS(WindowsUIUtils,
nsIWindowsUIUtils)
NS_IMETHODIMP
WindowsUIUtils::GetInTabletMode(bool* aResult)
{
if (mInTabletMode == eTabletModeUnknown) {
UpdateTabletModeState();
}
*aResult = mInTabletMode == eTabletModeOn;
return NS_OK;
}
NS_IMETHODIMP
WindowsUIUtils::UpdateTabletModeState()
{
#ifndef __MINGW32__
if (!IsWin10OrLater()) {
return NS_OK;
}
nsCOMPtr<nsIAppShellService> appShell(do_GetService(NS_APPSHELLSERVICE_CONTRACTID));
nsCOMPtr<nsIXULWindow> hiddenWindow;
nsresult rv = appShell->GetHiddenWindow(getter_AddRefs(hiddenWindow));
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIDocShell> docShell;
rv = hiddenWindow->GetDocShell(getter_AddRefs(docShell));
if (NS_FAILED(rv) || !docShell) {
return rv;
}
nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(docShell));
if (!baseWindow)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIWidget> widget;
baseWindow->GetMainWidget(getter_AddRefs(widget));
if (!widget)
return NS_ERROR_FAILURE;
HWND winPtr = (HWND)widget->GetNativeData(NS_NATIVE_WINDOW);
ComPtr<IUIViewSettingsInterop> uiViewSettingsInterop;
HRESULT hr = GetActivationFactory(
HStringReference(RuntimeClass_Windows_UI_ViewManagement_UIViewSettings).Get(),
&uiViewSettingsInterop);
if (SUCCEEDED(hr)) {
ComPtr<IUIViewSettings> uiViewSettings;
hr = uiViewSettingsInterop->GetForWindow(winPtr, IID_PPV_ARGS(&uiViewSettings));
if (SUCCEEDED(hr)) {
UserInteractionMode mode;
hr = uiViewSettings->get_UserInteractionMode(&mode);
if (SUCCEEDED(hr)) {
TabletModeState oldTabletModeState = mInTabletMode;
mInTabletMode = (mode == UserInteractionMode_Touch) ? eTabletModeOn : eTabletModeOff;
if (mInTabletMode != oldTabletModeState) {
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
NS_NAMED_LITERAL_STRING(tabletMode, "tablet-mode");
NS_NAMED_LITERAL_STRING(normalMode, "normal-mode");
observerService->NotifyObservers(nullptr, "tablet-mode-change",
((mInTabletMode == eTabletModeOn) ? tabletMode.get() : normalMode.get()));
}
}
}
}
#endif
return NS_OK;
}
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