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gecko-dev/widget/windows/WindowsUIUtils.cpp

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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 <wrl.h>
#include "nsServiceManagerUtils.h"
#include "WindowsUIUtils.h"
#include "nsIObserverService.h"
#include "nsIAppShellService.h"
#include "nsAppShellCID.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/WidgetUtils.h"
#include "mozilla/WindowsVersion.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/media/MediaUtils.h"
#include "nsString.h"
#include "nsGlobalWindowOuter.h"
#include "nsIWidget.h"
#include "nsIWindowMediator.h"
#include "nsPIDOMWindow.h"
#include "nsWindowGfx.h"
#include "Units.h"
/* mingw currently doesn't support windows.ui.viewmanagement.h, so we disable it
* until it's fixed. */
// See
// https://github.com/tpn/winsdk-10/blob/master/Include/10.0.14393.0/winrt/windows.ui.viewmanagement.h
// for the source of some of these definitions for older SDKs.
#ifndef __MINGW32__
# include <inspectable.h>
# include <roapi.h>
# include <windows.ui.viewmanagement.h>
# pragma comment(lib, "runtimeobject.lib")
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;
using namespace ABI::Windows::ApplicationModel::DataTransfer;
# ifndef RuntimeClass_Windows_UI_ViewManagement_UIViewSettings
# define RuntimeClass_Windows_UI_ViewManagement_UIViewSettings \
L"Windows.UI.ViewManagement.UIViewSettings"
# endif
# ifndef IUIViewSettingsInterop
using IUIViewSettingsInterop = interface IUIViewSettingsInterop;
MIDL_INTERFACE("3694dbf9-8f68-44be-8ff5-195c98ede8a6")
IUIViewSettingsInterop : public IInspectable {
public:
virtual HRESULT STDMETHODCALLTYPE GetForWindow(HWND hwnd, REFIID riid,
void** ppv) = 0;
};
# endif
# ifndef __IDataTransferManagerInterop_INTERFACE_DEFINED__
# define __IDataTransferManagerInterop_INTERFACE_DEFINED__
using IDataTransferManagerInterop = interface IDataTransferManagerInterop;
MIDL_INTERFACE("3A3DCD6C-3EAB-43DC-BCDE-45671CE800C8")
IDataTransferManagerInterop : public IUnknown {
public:
virtual HRESULT STDMETHODCALLTYPE GetForWindow(
HWND appWindow, REFIID riid, void** dataTransferManager) = 0;
virtual HRESULT STDMETHODCALLTYPE ShowShareUIForWindow(HWND appWindow) = 0;
};
# endif
# if !defined( \
____x_ABI_CWindows_CApplicationModel_CDataTransfer_CIDataPackage4_INTERFACE_DEFINED__)
# define ____x_ABI_CWindows_CApplicationModel_CDataTransfer_CIDataPackage4_INTERFACE_DEFINED__
MIDL_INTERFACE("13a24ec8-9382-536f-852a-3045e1b29a3b")
IDataPackage4 : public IInspectable {
public:
virtual HRESULT STDMETHODCALLTYPE add_ShareCanceled(
__FITypedEventHandler_2_Windows__CApplicationModel__CDataTransfer__CDataPackage_IInspectable *
handler,
EventRegistrationToken * token) = 0;
virtual HRESULT STDMETHODCALLTYPE remove_ShareCanceled(
EventRegistrationToken token) = 0;
};
# endif
# ifndef RuntimeClass_Windows_UI_ViewManagement_UISettings
# define RuntimeClass_Windows_UI_ViewManagement_UISettings \
L"Windows.UI.ViewManagement.UISettings"
# endif
# if WINDOWS_FOUNDATION_UNIVERSALAPICONTRACT_VERSION < 0x80000
namespace ABI {
namespace Windows {
namespace UI {
namespace ViewManagement {
class UISettings;
class UISettingsAutoHideScrollBarsChangedEventArgs;
interface IUISettingsAutoHideScrollBarsChangedEventArgs;
MIDL_INTERFACE("87afd4b2-9146-5f02-8f6b-06d454174c0f")
IUISettingsAutoHideScrollBarsChangedEventArgs : public IInspectable{};
} // namespace ViewManagement
} // namespace UI
} // namespace Windows
} // namespace ABI
namespace ABI {
namespace Windows {
namespace Foundation {
template <>
struct __declspec(uuid("808aef30-2660-51b0-9c11-f75dd42006b4"))
ITypedEventHandler<ABI::Windows::UI::ViewManagement::UISettings*,
ABI::Windows::UI::ViewManagement::
UISettingsAutoHideScrollBarsChangedEventArgs*>
: ITypedEventHandler_impl<
ABI::Windows::Foundation::Internal::AggregateType<
ABI::Windows::UI::ViewManagement::UISettings*,
ABI::Windows::UI::ViewManagement::IUISettings*>,
ABI::Windows::Foundation::Internal::AggregateType<
ABI::Windows::UI::ViewManagement::
UISettingsAutoHideScrollBarsChangedEventArgs*,
ABI::Windows::UI::ViewManagement::
IUISettingsAutoHideScrollBarsChangedEventArgs*>> {
static const wchar_t* z_get_rc_name_impl() {
return L"Windows.Foundation.TypedEventHandler`2<Windows.UI.ViewManagement."
L"UISettings, "
L"Windows.UI.ViewManagement."
L"UISettingsAutoHideScrollBarsChangedEventArgs>";
}
};
// Define a typedef for the parameterized interface specialization's mangled
// name. This allows code which uses the mangled name for the parameterized
// interface to access the correct parameterized interface specialization.
typedef ITypedEventHandler<ABI::Windows::UI::ViewManagement::UISettings*,
ABI::Windows::UI::ViewManagement::
UISettingsAutoHideScrollBarsChangedEventArgs*>
__FITypedEventHandler_2_Windows__CUI__CViewManagement__CUISettings_Windows__CUI__CViewManagement__CUISettingsAutoHideScrollBarsChangedEventArgs_t;
# define __FITypedEventHandler_2_Windows__CUI__CViewManagement__CUISettings_Windows__CUI__CViewManagement__CUISettingsAutoHideScrollBarsChangedEventArgs \
ABI::Windows::Foundation:: \
__FITypedEventHandler_2_Windows__CUI__CViewManagement__CUISettings_Windows__CUI__CViewManagement__CUISettingsAutoHideScrollBarsChangedEventArgs_t
} // namespace Foundation
} // namespace Windows
} // namespace ABI
namespace ABI {
namespace Windows {
namespace UI {
namespace ViewManagement {
class UISettings;
class UISettingsAutoHideScrollBarsChangedEventArgs;
interface IUISettings5;
MIDL_INTERFACE("5349d588-0cb5-5f05-bd34-706b3231f0bd")
IUISettings5 : public IInspectable {
public:
virtual HRESULT STDMETHODCALLTYPE get_AutoHideScrollBars(boolean * value) = 0;
virtual HRESULT STDMETHODCALLTYPE add_AutoHideScrollBarsChanged(
__FITypedEventHandler_2_Windows__CUI__CViewManagement__CUISettings_Windows__CUI__CViewManagement__CUISettingsAutoHideScrollBarsChangedEventArgs *
handler,
EventRegistrationToken * token) = 0;
virtual HRESULT STDMETHODCALLTYPE remove_AutoHideScrollBarsChanged(
EventRegistrationToken token) = 0;
};
} // namespace ViewManagement
} // namespace UI
} // namespace Windows
} // namespace ABI
# endif
#endif
using namespace mozilla;
enum class TabletModeState : uint8_t { Unknown, Off, On };
static TabletModeState sInTabletModeState;
WindowsUIUtils::WindowsUIUtils() = default;
WindowsUIUtils::~WindowsUIUtils() = default;
NS_IMPL_ISUPPORTS(WindowsUIUtils, nsIWindowsUIUtils)
NS_IMETHODIMP
WindowsUIUtils::GetSystemSmallIconSize(int32_t* aSize) {
NS_ENSURE_ARG(aSize);
mozilla::LayoutDeviceIntSize size =
nsWindowGfx::GetIconMetrics(nsWindowGfx::kSmallIcon);
*aSize = std::max(size.width, size.height);
return NS_OK;
}
NS_IMETHODIMP
WindowsUIUtils::GetSystemLargeIconSize(int32_t* aSize) {
NS_ENSURE_ARG(aSize);
mozilla::LayoutDeviceIntSize size =
nsWindowGfx::GetIconMetrics(nsWindowGfx::kRegularIcon);
*aSize = std::max(size.width, size.height);
return NS_OK;
}
NS_IMETHODIMP
WindowsUIUtils::SetWindowIcon(mozIDOMWindowProxy* aWindow,
imgIContainer* aSmallIcon,
imgIContainer* aBigIcon) {
NS_ENSURE_ARG(aWindow);
nsCOMPtr<nsIWidget> widget =
nsGlobalWindowOuter::Cast(aWindow)->GetMainWidget();
nsWindow* window = static_cast<nsWindow*>(widget.get());
nsresult rv;
if (aSmallIcon) {
HICON hIcon = nullptr;
rv = nsWindowGfx::CreateIcon(
aSmallIcon, false, mozilla::LayoutDeviceIntPoint(),
nsWindowGfx::GetIconMetrics(nsWindowGfx::kSmallIcon), &hIcon);
NS_ENSURE_SUCCESS(rv, rv);
window->SetSmallIcon(hIcon);
}
if (aBigIcon) {
HICON hIcon = nullptr;
rv = nsWindowGfx::CreateIcon(
aBigIcon, false, mozilla::LayoutDeviceIntPoint(),
nsWindowGfx::GetIconMetrics(nsWindowGfx::kRegularIcon), &hIcon);
NS_ENSURE_SUCCESS(rv, rv);
window->SetBigIcon(hIcon);
}
return NS_OK;
}
NS_IMETHODIMP
WindowsUIUtils::SetWindowIconFromExe(mozIDOMWindowProxy* aWindow,
const nsAString& aExe, uint16_t aIndex) {
NS_ENSURE_ARG(aWindow);
nsCOMPtr<nsIWidget> widget =
nsGlobalWindowOuter::Cast(aWindow)->GetMainWidget();
nsWindow* window = static_cast<nsWindow*>(widget.get());
HICON icon = ::LoadIconW(::GetModuleHandleW(PromiseFlatString(aExe).get()),
MAKEINTRESOURCEW(aIndex));
window->SetBigIcon(icon);
window->SetSmallIcon(icon);
return NS_OK;
}
NS_IMETHODIMP
WindowsUIUtils::SetWindowIconNoData(mozIDOMWindowProxy* aWindow) {
NS_ENSURE_ARG(aWindow);
nsCOMPtr<nsIWidget> widget =
nsGlobalWindowOuter::Cast(aWindow)->GetMainWidget();
nsWindow* window = static_cast<nsWindow*>(widget.get());
window->SetSmallIconNoData();
window->SetBigIconNoData();
return NS_OK;
}
bool WindowsUIUtils::GetInTabletMode() {
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
if (sInTabletModeState == TabletModeState::Unknown) {
UpdateInTabletMode();
}
return sInTabletModeState == TabletModeState::On;
}
NS_IMETHODIMP
WindowsUIUtils::GetInTabletMode(bool* aResult) {
*aResult = GetInTabletMode();
return NS_OK;
}
static IInspectable* GetUISettings() {
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
#ifndef __MINGW32__
// We need to keep this alive for ~ever so that change callbacks work as
// expected, sigh.
static StaticRefPtr<IInspectable> sUiSettingsAsInspectable;
if (!sUiSettingsAsInspectable) {
ComPtr<IInspectable> uiSettingsAsInspectable;
::RoActivateInstance(
HStringReference(RuntimeClass_Windows_UI_ViewManagement_UISettings)
.Get(),
&uiSettingsAsInspectable);
if (NS_WARN_IF(!uiSettingsAsInspectable)) {
return nullptr;
}
ComPtr<IUISettings5> uiSettings5;
if (SUCCEEDED(uiSettingsAsInspectable.As(&uiSettings5))) {
EventRegistrationToken unusedToken;
auto callback = Callback<ITypedEventHandler<
UISettings*, UISettingsAutoHideScrollBarsChangedEventArgs*>>(
[](auto...) {
// Scrollbar sizes change layout.
LookAndFeel::NotifyChangedAllWindows(
widget::ThemeChangeKind::StyleAndLayout);
return S_OK;
});
(void)NS_WARN_IF(FAILED(uiSettings5->add_AutoHideScrollBarsChanged(
callback.Get(), &unusedToken)));
}
ComPtr<IUISettings2> uiSettings2;
if (SUCCEEDED(uiSettingsAsInspectable.As(&uiSettings2))) {
EventRegistrationToken unusedToken;
auto callback =
Callback<ITypedEventHandler<UISettings*, IInspectable*>>([](auto...) {
// Text scale factor changes style and layout.
LookAndFeel::NotifyChangedAllWindows(
widget::ThemeChangeKind::StyleAndLayout);
return S_OK;
});
(void)NS_WARN_IF(FAILED(uiSettings2->add_TextScaleFactorChanged(
callback.Get(), &unusedToken)));
}
ComPtr<IUISettings3> uiSettings3;
if (SUCCEEDED(uiSettingsAsInspectable.As(&uiSettings3))) {
EventRegistrationToken unusedToken;
auto callback =
Callback<ITypedEventHandler<UISettings*, IInspectable*>>([](auto...) {
// System color changes change style only.
LookAndFeel::NotifyChangedAllWindows(
widget::ThemeChangeKind::Style);
return S_OK;
});
(void)NS_WARN_IF(FAILED(
uiSettings3->add_ColorValuesChanged(callback.Get(), &unusedToken)));
}
ComPtr<IUISettings4> uiSettings4;
if (SUCCEEDED(uiSettingsAsInspectable.As(&uiSettings4))) {
EventRegistrationToken unusedToken;
auto callback =
Callback<ITypedEventHandler<UISettings*, IInspectable*>>([](auto...) {
// Transparent effects changes change media queries only.
LookAndFeel::NotifyChangedAllWindows(
widget::ThemeChangeKind::MediaQueriesOnly);
return S_OK;
});
(void)NS_WARN_IF(FAILED(uiSettings4->add_AdvancedEffectsEnabledChanged(
callback.Get(), &unusedToken)));
}
sUiSettingsAsInspectable = dont_AddRef(uiSettingsAsInspectable.Detach());
ClearOnShutdown(&sUiSettingsAsInspectable);
}
return sUiSettingsAsInspectable.get();
#else
return nullptr;
#endif
}
Maybe<nscolor> WindowsUIUtils::GetAccentColor(int aTone) {
MOZ_ASSERT(aTone >= -3);
MOZ_ASSERT(aTone <= 3);
#ifndef __MINGW32__
ComPtr<IInspectable> settings = GetUISettings();
if (NS_WARN_IF(!settings)) {
return Nothing();
}
ComPtr<IUISettings3> uiSettings3;
if (NS_WARN_IF(FAILED(settings.As(&uiSettings3)))) {
return Nothing();
}
Color color;
auto colorType = UIColorType(int(UIColorType_Accent) + aTone);
if (NS_WARN_IF(FAILED(uiSettings3->GetColorValue(colorType, &color)))) {
return Nothing();
}
return Some(NS_RGBA(color.R, color.G, color.B, color.A));
#else
return Nothing();
#endif
}
Maybe<nscolor> WindowsUIUtils::GetSystemColor(ColorScheme aScheme,
int aSysColor) {
#ifndef __MINGW32__
if (!StaticPrefs::widget_windows_uwp_system_colors_enabled()) {
return Nothing();
}
// https://docs.microsoft.com/en-us/windows/apps/design/style/color
// Is a useful resource to see which values have decent contrast.
if (StaticPrefs::widget_windows_uwp_system_colors_highlight_accent()) {
if (aSysColor == COLOR_HIGHLIGHT) {
int tone = aScheme == ColorScheme::Light ? 0 : -1;
if (auto c = GetAccentColor(tone)) {
return c;
}
}
if (aSysColor == COLOR_HIGHLIGHTTEXT && GetAccentColor()) {
return Some(NS_RGBA(255, 255, 255, 255));
}
}
if (aScheme == ColorScheme::Dark) {
// There are no explicitly dark colors in UWP, other than the highlight
// colors above.
return Nothing();
}
auto knownType = [&]() -> Maybe<UIElementType> {
# define MAP(_win32, _uwp) \
case COLOR_##_win32: \
return Some(UIElementType_##_uwp)
switch (aSysColor) {
MAP(HIGHLIGHT, Highlight);
MAP(HIGHLIGHTTEXT, HighlightText);
MAP(ACTIVECAPTION, ActiveCaption);
MAP(BTNFACE, ButtonFace);
MAP(BTNTEXT, ButtonText);
MAP(CAPTIONTEXT, CaptionText);
MAP(GRAYTEXT, GrayText);
MAP(HOTLIGHT, Hotlight);
MAP(INACTIVECAPTION, InactiveCaption);
MAP(INACTIVECAPTIONTEXT, InactiveCaptionText);
MAP(WINDOW, Window);
MAP(WINDOWTEXT, WindowText);
default:
return Nothing();
}
# undef MAP
}();
if (!knownType) {
return Nothing();
}
ComPtr<IInspectable> settings = GetUISettings();
if (NS_WARN_IF(!settings)) {
return Nothing();
}
ComPtr<IUISettings> uiSettings;
if (NS_WARN_IF(FAILED(settings.As(&uiSettings)))) {
return Nothing();
}
Color color;
if (NS_WARN_IF(FAILED(uiSettings->UIElementColor(*knownType, &color)))) {
return Nothing();
}
return Some(NS_RGBA(color.R, color.G, color.B, color.A));
#else
return Nothing();
#endif
}
bool WindowsUIUtils::ComputeOverlayScrollbars() {
#ifndef __MINGW32__
if (!IsWin11OrLater()) {
// While in theory Windows 10 supports overlay scrollbar settings, it's off
// by default and it's untested whether our Win10 scrollbar drawing code
// deals with it properly.
return false;
}
if (!StaticPrefs::widget_windows_overlay_scrollbars_enabled()) {
return false;
}
ComPtr<IInspectable> settings = GetUISettings();
if (NS_WARN_IF(!settings)) {
return false;
}
ComPtr<IUISettings5> uiSettings5;
if (NS_WARN_IF(FAILED(settings.As(&uiSettings5)))) {
return false;
}
boolean autoHide = false;
if (NS_WARN_IF(FAILED(uiSettings5->get_AutoHideScrollBars(&autoHide)))) {
return false;
}
return autoHide;
#else
return false;
#endif
}
double WindowsUIUtils::ComputeTextScaleFactor() {
#ifndef __MINGW32__
ComPtr<IInspectable> settings = GetUISettings();
if (NS_WARN_IF(!settings)) {
return 1.0;
}
ComPtr<IUISettings2> uiSettings2;
if (NS_WARN_IF(FAILED(settings.As(&uiSettings2)))) {
return false;
}
double scaleFactor = 1.0;
if (NS_WARN_IF(FAILED(uiSettings2->get_TextScaleFactor(&scaleFactor)))) {
return 1.0;
}
return scaleFactor;
#else
return 1.0;
#endif
}
bool WindowsUIUtils::ComputeTransparencyEffects() {
constexpr bool kDefault = true;
#ifndef __MINGW32__
ComPtr<IInspectable> settings = GetUISettings();
if (NS_WARN_IF(!settings)) {
return kDefault;
}
ComPtr<IUISettings4> uiSettings4;
if (NS_WARN_IF(FAILED(settings.As(&uiSettings4)))) {
return kDefault;
}
boolean transparencyEffects = kDefault;
if (NS_WARN_IF(FAILED(
uiSettings4->get_AdvancedEffectsEnabled(&transparencyEffects)))) {
return kDefault;
}
return transparencyEffects;
#else
return kDefault;
#endif
}
void WindowsUIUtils::UpdateInTabletMode() {
#ifndef __MINGW32__
nsresult rv;
nsCOMPtr<nsIWindowMediator> winMediator(
do_GetService(NS_WINDOWMEDIATOR_CONTRACTID, &rv));
if (NS_FAILED(rv)) {
return;
}
nsCOMPtr<nsIWidget> widget;
nsCOMPtr<mozIDOMWindowProxy> navWin;
rv = winMediator->GetMostRecentBrowserWindow(getter_AddRefs(navWin));
if (NS_FAILED(rv) || !navWin) {
// Fall back to the hidden window
nsCOMPtr<nsIAppShellService> appShell(
do_GetService(NS_APPSHELLSERVICE_CONTRACTID));
rv = appShell->GetHiddenDOMWindow(getter_AddRefs(navWin));
if (NS_FAILED(rv) || !navWin) {
return;
}
}
nsPIDOMWindowOuter* win = nsPIDOMWindowOuter::From(navWin);
widget = widget::WidgetUtils::DOMWindowToWidget(win);
if (!widget) {
return;
}
HWND winPtr = (HWND)widget->GetNativeData(NS_NATIVE_WINDOW);
ComPtr<IUIViewSettingsInterop> uiViewSettingsInterop;
HRESULT hr = GetActivationFactory(
HStringReference(RuntimeClass_Windows_UI_ViewManagement_UIViewSettings)
.Get(),
&uiViewSettingsInterop);
if (FAILED(hr)) {
return;
}
ComPtr<IUIViewSettings> uiViewSettings;
hr = uiViewSettingsInterop->GetForWindow(winPtr,
IID_PPV_ARGS(&uiViewSettings));
if (FAILED(hr)) {
return;
}
UserInteractionMode mode;
hr = uiViewSettings->get_UserInteractionMode(&mode);
if (FAILED(hr)) {
return;
}
TabletModeState oldTabletModeState = sInTabletModeState;
sInTabletModeState = mode == UserInteractionMode_Touch ? TabletModeState::On
: TabletModeState::Off;
if (sInTabletModeState != oldTabletModeState) {
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
observerService->NotifyObservers(nullptr, "tablet-mode-change",
sInTabletModeState == TabletModeState::On
? u"tablet-mode"
: u"normal-mode");
}
#endif
}
#ifndef __MINGW32__
struct HStringDeleter {
using pointer = HSTRING;
void operator()(pointer aString) { WindowsDeleteString(aString); }
};
using HStringUniquePtr = UniquePtr<HSTRING, HStringDeleter>;
Result<HStringUniquePtr, HRESULT> ConvertToWindowsString(
const nsAString& aStr) {
HSTRING rawStr;
HRESULT hr = WindowsCreateString(PromiseFlatString(aStr).get(), aStr.Length(),
&rawStr);
if (FAILED(hr)) {
return Err(hr);
}
return HStringUniquePtr(rawStr);
}
static Result<Ok, nsresult> RequestShare(
const std::function<HRESULT(IDataRequestedEventArgs* pArgs)>& aCallback) {
HWND hwnd = GetForegroundWindow();
if (!hwnd) {
return Err(NS_ERROR_FAILURE);
}
ComPtr<IDataTransferManagerInterop> dtmInterop;
ComPtr<IDataTransferManager> dtm;
HRESULT hr = RoGetActivationFactory(
HStringReference(
RuntimeClass_Windows_ApplicationModel_DataTransfer_DataTransferManager)
.Get(),
IID_PPV_ARGS(&dtmInterop));
if (FAILED(hr) ||
FAILED(dtmInterop->GetForWindow(hwnd, IID_PPV_ARGS(&dtm)))) {
return Err(NS_ERROR_FAILURE);
}
auto callback = Callback<
ITypedEventHandler<DataTransferManager*, DataRequestedEventArgs*>>(
[aCallback](IDataTransferManager*,
IDataRequestedEventArgs* pArgs) -> HRESULT {
return aCallback(pArgs);
});
EventRegistrationToken dataRequestedToken;
if (FAILED(dtm->add_DataRequested(callback.Get(), &dataRequestedToken)) ||
FAILED(dtmInterop->ShowShareUIForWindow(hwnd))) {
return Err(NS_ERROR_FAILURE);
}
return Ok();
}
static Result<Ok, nsresult> AddShareEventListeners(
const RefPtr<mozilla::media::Refcountable<MozPromiseHolder<SharePromise>>>&
aPromiseHolder,
const ComPtr<IDataPackage>& aDataPackage) {
ComPtr<IDataPackage3> spDataPackage3;
if (FAILED(aDataPackage.As(&spDataPackage3))) {
return Err(NS_ERROR_FAILURE);
}
auto completedCallback =
Callback<ITypedEventHandler<DataPackage*, ShareCompletedEventArgs*>>(
[aPromiseHolder](IDataPackage*,
IShareCompletedEventArgs*) -> HRESULT {
aPromiseHolder->Resolve(true, __func__);
return S_OK;
});
EventRegistrationToken dataRequestedToken;
if (FAILED(spDataPackage3->add_ShareCompleted(completedCallback.Get(),
&dataRequestedToken))) {
return Err(NS_ERROR_FAILURE);
}
ComPtr<IDataPackage4> spDataPackage4;
if (SUCCEEDED(aDataPackage.As(&spDataPackage4))) {
// Use SharedCanceled API only on supported versions of Windows
// So that the older ones can still use ShareUrl()
auto canceledCallback =
Callback<ITypedEventHandler<DataPackage*, IInspectable*>>(
[aPromiseHolder](IDataPackage*, IInspectable*) -> HRESULT {
aPromiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return S_OK;
});
if (FAILED(spDataPackage4->add_ShareCanceled(canceledCallback.Get(),
&dataRequestedToken))) {
return Err(NS_ERROR_FAILURE);
}
}
return Ok();
}
#endif
RefPtr<SharePromise> WindowsUIUtils::Share(nsAutoString aTitle,
nsAutoString aText,
nsAutoString aUrl) {
auto promiseHolder = MakeRefPtr<
mozilla::media::Refcountable<MozPromiseHolder<SharePromise>>>();
RefPtr<SharePromise> promise = promiseHolder->Ensure(__func__);
#ifndef __MINGW32__
auto result = RequestShare([promiseHolder, title = std::move(aTitle),
text = std::move(aText), url = std::move(aUrl)](
IDataRequestedEventArgs* pArgs) {
ComPtr<IDataRequest> spDataRequest;
ComPtr<IDataPackage> spDataPackage;
ComPtr<IDataPackage2> spDataPackage2;
ComPtr<IDataPackagePropertySet> spDataPackageProperties;
if (FAILED(pArgs->get_Request(&spDataRequest)) ||
FAILED(spDataRequest->get_Data(&spDataPackage)) ||
FAILED(spDataPackage.As(&spDataPackage2)) ||
FAILED(spDataPackage->get_Properties(&spDataPackageProperties))) {
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return E_FAIL;
}
/*
* Windows always requires a title, and an empty string does not work.
* Thus we trick the API by passing a whitespace when we have no title.
* https://docs.microsoft.com/en-us/windows/uwp/app-to-app/share-data
*/
auto wTitle = ConvertToWindowsString((title.IsVoid() || title.Length() == 0)
? nsAutoString(u" "_ns)
: title);
if (wTitle.isErr() ||
FAILED(spDataPackageProperties->put_Title(wTitle.unwrap().get()))) {
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return E_FAIL;
}
// Assign even if empty, as Windows requires some data to share
auto wText = ConvertToWindowsString(text);
if (wText.isErr() || FAILED(spDataPackage->SetText(wText.unwrap().get()))) {
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return E_FAIL;
}
if (!url.IsVoid()) {
auto wUrl = ConvertToWindowsString(url);
if (wUrl.isErr()) {
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return wUrl.unwrapErr();
}
ComPtr<IUriRuntimeClassFactory> uriFactory;
ComPtr<IUriRuntimeClass> uri;
auto hr = GetActivationFactory(
HStringReference(RuntimeClass_Windows_Foundation_Uri).Get(),
&uriFactory);
if (FAILED(hr) ||
FAILED(uriFactory->CreateUri(wUrl.unwrap().get(), &uri)) ||
FAILED(spDataPackage2->SetWebLink(uri.Get()))) {
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return E_FAIL;
}
}
if (!StaticPrefs::widget_windows_share_wait_action_enabled()) {
promiseHolder->Resolve(true, __func__);
} else if (AddShareEventListeners(promiseHolder, spDataPackage).isErr()) {
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
return E_FAIL;
}
return S_OK;
});
if (result.isErr()) {
promiseHolder->Reject(result.unwrapErr(), __func__);
}
#else
promiseHolder->Reject(NS_ERROR_FAILURE, __func__);
#endif
return promise;
}
NS_IMETHODIMP
WindowsUIUtils::ShareUrl(const nsAString& aUrlToShare,
const nsAString& aShareTitle) {
nsAutoString text;
text.SetIsVoid(true);
WindowsUIUtils::Share(nsAutoString(aShareTitle), text,
nsAutoString(aUrlToShare));
return NS_OK;
}
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