qohosclipboardobject.cpp

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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include <QtCore/private/qcore_ohos_p.h>
#include <qohosclipboardobject.h>
 
#include <QtCore/private/qohoscommon_p.h>
#include <QtCore/private/qohoslogger_p.h>
#include <QtCore/qurl.h>
#include <database/pasteboard/oh_pasteboard.h>
#include <database/pasteboard/oh_pasteboard_err_code.h>
#include <database/udmf/udmf.h>
#include <database/udmf/uds.h>
#include <memory>
#include <multimedia/image_framework/image/image_common.h>
#include <multimedia/image_framework/image/pixelmap_native.h>
#include <qarkui/qarkuiutils.h>
#include <qohosapppermissions_p.h>
#include <qohosudmfconversions.h>
#include <qohosutils.h>
 
QT_BEGIN_NAMESPACE
 
namespace {
 
const auto mimeTextPlain = QString::fromUtf8("text/plain");
const auto mimeTextHtml = QString::fromUtf8("text/html");
const auto mimeTextUriList = QString::fromUtf8("text/uri-list");
const auto mimeAppXQtImage = QString::fromUtf8("application/x-qt-image");
 
struct PasteboardObserverContext
{
    std::weak_ptr<QOhosClipboardObject> weakThis;
};
 
const char *getPasteboardNotifyTypeAsString(::Pasteboard_NotifyType notifyType)
{
    switch (notifyType) {
    case ::Pasteboard_NotifyType::NOTIFY_LOCAL_DATA_CHANGE:
        return "NOTIFY_LOCAL_DATA_CHANGE";
    case ::Pasteboard_NotifyType::NOTIFY_REMOTE_DATA_CHANGE:
        return "NOTIFY_REMOTE_DATA_CHANGE";
    }
    return "<illegal-Pasteboard_NotifyType>";
}
 
const char *getPasteboardDataSourceAsString(QOhosClipboardObject::PasteboardDataSource dataSource)
{
    switch (dataSource) {
    case QOhosClipboardObject::PasteboardDataSource::OurProcess:
        return "OurProcess";
    case QOhosClipboardObject::PasteboardDataSource::OtherProcess:
        return "OtherProcess";
    }
    return "<illegal-PasteboardDataSource>";
}
 
std::shared_ptr<::OH_PasteboardObserver> createPasteboardDataObserver()
{
    return std::shared_ptr<::OH_PasteboardObserver>(
        QArkUi::callArkUiOrFailOnNullResult(
            Q_OHOS_NAMED_FUNC(::OH_PasteboardObserver_Create)),
        [](auto *pasteboardDataObserver) {
            int observerDestroyRes = QArkUi::callArkUi(
                Q_OHOS_NAMED_FUNC(::OH_PasteboardObserver_Destroy),
                pasteboardDataObserver);
            if (observerDestroyRes != ::PASTEBOARD_ErrCode::ERR_OK) {
                qOhosPrintfError(
                    "%s: failed at destroying pasteboard observer.", Q_FUNC_INFO);
            }
        });
}
 
std::shared_ptr<void> subscribePasteboardObserver(
    std::shared_ptr<::OH_Pasteboard> pasteboard,
    std::shared_ptr<::OH_PasteboardObserver> pasteboardObserver,
    ::Pasteboard_NotifyType notifyType,
    std::function<void()> dataChangedFunc)
{
    QArkUi::callArkUiOrFailOnErrorResult(
        Q_OHOS_NAMED_FUNC(::OH_Pasteboard_Subscribe),
        pasteboard.get(), notifyType, pasteboardObserver.get());
 
    auto sharedDataChangedFunc = QtOhos::moveToSharedPtr(std::move(dataChangedFunc));
 
    auto subscriptionHandle = QtOhos::makeDestroyNotifier(
        [pasteboard, notifyType, pasteboardObserver, sharedDataChangedFunc]() {
            int unsubscribeRes = QArkUi::callArkUi(
                Q_OHOS_NAMED_FUNC(::OH_Pasteboard_Unsubscribe),
                pasteboard.get(), notifyType, pasteboardObserver.get());
            if (unsubscribeRes != ::PASTEBOARD_ErrCode::ERR_OK) {
                qOhosPrintfError(
                    "%s: failed at unsubscribing from pasteboard %s.", Q_FUNC_INFO,
                    getPasteboardNotifyTypeAsString(notifyType));
            }
        });
 
    QArkUi::callArkUiOrFailOnErrorResult(
        Q_OHOS_NAMED_FUNC(::OH_PasteboardObserver_SetData),
        pasteboardObserver.get(), sharedDataChangedFunc.get(),
        [](void *ctx, ::Pasteboard_NotifyType) {
            auto *dataChangedFunc = reinterpret_cast<std::function<void()> *>(ctx);
            (*dataChangedFunc)();
        },
        [](void *) {});
 
    return subscriptionHandle;
}
 
std::shared_ptr<void> addPasteboardDataChangedListener(
    std::shared_ptr<::OH_Pasteboard> pasteboard, std::function<void()> dataChangedListener,
    std::vector<::Pasteboard_NotifyType> monitoredNotifyTypes)
{
    std::vector<std::shared_ptr<void>> subscriptionHandles;
    auto sharedDataChangedFunc = QtOhos::moveToSharedPtr(std::move(dataChangedListener));
 
    for (auto notifyType : monitoredNotifyTypes) {
        auto observer = createPasteboardDataObserver();
        subscriptionHandles.push_back(
            subscribePasteboardObserver(
                pasteboard, observer, notifyType,
                [sharedDataChangedFunc]() {
                    (*sharedDataChangedFunc)();
                }));
    }
 
    return QtOhos::moveToSharedPtr(std::move(subscriptionHandles));
}
 
std::unique_ptr<QOhosUdmfData> tryGetUdmfDataFromPasteboard(::OH_Pasteboard *pasteboard)
{
    if (!QArkUi::callArkUi(Q_OHOS_NAMED_FUNC(::OH_Pasteboard_HasData), pasteboard))
        return nullptr;
 
    int res;
    auto *udmfDataPtr = QArkUi::callArkUi(
        Q_OHOS_NAMED_FUNC(::OH_Pasteboard_GetData),
        pasteboard, &res);
 
    if (res != ::PASTEBOARD_ErrCode::ERR_OK || udmfDataPtr == nullptr) {
        qOhosPrintfError("%s: error reading pasteboard data: %d / %p", Q_FUNC_INFO, res, udmfDataPtr);
        return nullptr;
    }
 
    return std::make_unique<QOhosUdmfData>(QOhosUdmfData::takeOwnership(udmfDataPtr));
}
 
}
 
QOhosClipboardObject::QOhosClipboardObject(
    std::function<void(std::optional<PasteboardDataSource>)> &&pasteboardUpdatesNotifier)
    : m_pasteboardUpdatesNotifier(
        QtOhos::moveToSharedPtr(std::move(pasteboardUpdatesNotifier)))
{
    auto weakPasteboardUpdatesNotifier = QtOhos::makeWeakPtr(m_pasteboardUpdatesNotifier);
    QOhosJsThreadGateway::runAndWait(
        [&](QOhosJsState &) {
            auto pasteboard = std::shared_ptr<::OH_Pasteboard>(
                QArkUi::callArkUiOrFailOnNullResult(
                    Q_OHOS_NAMED_FUNC(::OH_Pasteboard_Create)),
                [](auto *pasteboard) {
                    QArkUi::callArkUi(Q_OHOS_NAMED_FUNC(::OH_Pasteboard_Destroy), pasteboard);
                });
 
            auto pasteboardDataChangedJsThreadListener = std::make_shared<std::function<void()>>(
                [pasteboard, weakPasteboardUpdatesNotifier]() {
                    auto optPasteboardUdmfData = tryGetUdmfDataFromPasteboard(pasteboard.get());
                    auto pasteboardDataSource =
                        optPasteboardUdmfData
                            ? std::optional(
                                isQOhosUdmfDataConvertedFromThisProcessMimeData(*optPasteboardUdmfData)
                                    ? PasteboardDataSource::OurProcess
                                    : PasteboardDataSource::OtherProcess)
                            : std::nullopt;
 
                    qOhosPrintfDebug(
                        "%s: Pasteboard data source: %s",
                        Q_FUNC_INFO,
                        qTransform(pasteboardDataSource, &getPasteboardDataSourceAsString).value_or("<empty>"));
 
                    QtOhos::invokeInQtThread(
                        [weakPasteboardUpdatesNotifier, pasteboardDataSource]() {
                            auto sharedPasteboardUpdatesNotifier = weakPasteboardUpdatesNotifier.lock();
                            if (sharedPasteboardUpdatesNotifier)
                                (*sharedPasteboardUpdatesNotifier)(pasteboardDataSource);
                        });
                });
 
            auto pasteboardDataChangedListenerHandle = addPasteboardDataChangedListener(
                pasteboard,
                [pasteboardDataChangedJsThreadListener]() {
                    auto __dbg = make_QCScopedDebugJS(Q_FUNC_INFO);
                    QOhosJsThreadGateway::invoke(
                        [pasteboardDataChangedJsThreadListener](auto &) {
                            (*pasteboardDataChangedJsThreadListener)();
                        });
                },
                {
                    ::Pasteboard_NotifyType::NOTIFY_LOCAL_DATA_CHANGE,
                    ::Pasteboard_NotifyType::NOTIFY_REMOTE_DATA_CHANGE,
                });
 
            *m_jsScopeData = JsScopeData{
                .pasteboard = pasteboard,
                .pasteboardDataChangedListenerHandle = pasteboardDataChangedListenerHandle,
            };
        },
        Q_FUNC_INFO);
}
 
std::unique_ptr<QOhosClipboardObject> QOhosClipboardObject::makeInstance(
    std::function<void(std::optional<QOhosClipboardObject::PasteboardDataSource>)> &&pasteboardUpdatesNotifier)
{
    return std::unique_ptr<QOhosClipboardObject>(
        new QOhosClipboardObject(std::move(pasteboardUpdatesNotifier)));
}
 
QOhosClipboardObject::PasteboardData QOhosClipboardObject::getPasteboardDataWithLazyFetch()
{
    std::optional<PasteboardDataSource> dataSource;
    QOhosSupplier<std::unique_ptr<QMimeData>> mimeDataFactory;
    std::tie(dataSource, mimeDataFactory) = QOhosJsThreadGateway::evalWithPromise<std::pair<std::optional<PasteboardDataSource>, QOhosSupplier<std::unique_ptr<QMimeData>>>>(
        [&](QOhosJsState &jsState, auto evalPromise) {
            static constexpr const char *ohosGetPasteboardDataPermission = "ohos.permission.READ_PASTEBOARD";
            auto sharedEvalPromise = QtOhos::moveToSharedPtr(std::move(evalPromise).makeChained(Q_FUNC_INFO));
            QOhosAppPermissions::checkAppPermissionGrantedWithConsumer(
                jsState, ohosGetPasteboardDataPermission,
                [this, sharedEvalPromise](auto &, bool permissionGranted) {
                    if (!permissionGranted) {
                        qOhosPrintfError(
                            "%s: %s hasn't been granted by user. Cannot read pasteboard data.", Q_FUNC_INFO,
                            ohosGetPasteboardDataPermission);
                        (*sharedEvalPromise)({{}, std::make_unique<QMimeData>});
                        return;
                    }
 
                    auto optPasteboardUdmfData = tryGetUdmfDataFromPasteboard(m_jsScopeData->pasteboard.get());
                    if (!optPasteboardUdmfData) {
                        (*sharedEvalPromise)({{}, std::make_unique<QMimeData>});
                        return;
                    }
 
                    (*sharedEvalPromise)(
                        {
                            isQOhosUdmfDataConvertedFromThisProcessMimeData(*optPasteboardUdmfData)
                                ? PasteboardDataSource::OurProcess
                                : PasteboardDataSource::OtherProcess,
                            makeLazyFetchingQMimeDataFactoryFromUdmfData(std::move(*optPasteboardUdmfData))
                        });
                });
        },
        Q_FUNC_INFO);
 
    return PasteboardData{
        .dataSource = dataSource,
        .lazyFetchingData = mimeDataFactory(),
    };
}
 
void QOhosClipboardObject::setMimeDataSync(
    std::shared_ptr<QMimeData> mimeData, const std::optional<bool> &shareInAppOnly)
{
    if (!mimeData)
        return;
 
    auto udmfDataFactory = makeLazyProcessingUdmfDataFactoryFromQMimeData(mimeData, shareInAppOnly);
 
    QOhosJsThreadGateway::runAndWait(
        [&](QOhosJsState &) {
            auto udmfData = udmfDataFactory();
 
            int res = QArkUi::callArkUi(
                Q_OHOS_NAMED_FUNC(::OH_Pasteboard_SetData),
                m_jsScopeData->pasteboard.get(), udmfData.nativePtr());
            if (res != ::PASTEBOARD_ErrCode::ERR_OK) {
                qOhosPrintfError("%s: cannot set data for pasteboard.", Q_FUNC_INFO);
                return;
            }
        },
        Q_FUNC_INFO);
}
 
QT_END_NAMESPACE