diff options
| author | Lorn Potter <lorn.potter@gmail.com> | 2023-10-19 16:33:25 +1000 |
|---|---|---|
| committer | Lorn Potter <lorn.potter@gmail.com> | 2023-12-22 08:06:08 +1000 |
| commit | 1f7d222cec1e8659d7bfa19ec3c1098a2bc00f35 (patch) | |
| tree | c476f09ec2849c525805b9d6d714fff07b23fee4 /src/plugins/platforms/wasm/qwasmdom.cpp | |
| parent | 8cc84a1386b77701ebc9c9d4efbc1b033d0e326b (diff) | |
wasm: write file to storage on drop
Change-Id: Ibd1b5d623da07ad611cce577929a23ba991b6738
Pick-to: 6.7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Diffstat (limited to 'src/plugins/platforms/wasm/qwasmdom.cpp')
| -rw-r--r-- | src/plugins/platforms/wasm/qwasmdom.cpp | 62 |
1 files changed, 53 insertions, 9 deletions
diff --git a/src/plugins/platforms/wasm/qwasmdom.cpp b/src/plugins/platforms/wasm/qwasmdom.cpp index 845aef3bc10..a2a9c129771 100644 --- a/src/plugins/platforms/wasm/qwasmdom.cpp +++ b/src/plugins/platforms/wasm/qwasmdom.cpp @@ -3,7 +3,6 @@ #include "qwasmdom.h" -#include <QMimeData> #include <QtCore/qpoint.h> #include <QtCore/qrect.h> #include <QtGui/qimage.h> @@ -15,6 +14,9 @@ QT_BEGIN_NAMESPACE +// this needs to live outside the life of DataTransfer +Q_GLOBAL_STATIC(QMimeData, resultMimeData); + namespace dom { namespace { std::string dropActionToDropEffect(Qt::DropAction action) @@ -36,7 +38,9 @@ std::string dropActionToDropEffect(Qt::DropAction action) } } // namespace -DataTransfer::DataTransfer(emscripten::val webDataTransfer) : webDataTransfer(webDataTransfer) { } +DataTransfer::DataTransfer(emscripten::val webDataTransfer) + : webDataTransfer(webDataTransfer) { +} DataTransfer::~DataTransfer() = default; @@ -78,10 +82,9 @@ void DataTransfer::setDataFromMimeData(const QMimeData &mimeData) } } -QMimeData *DataTransfer::toMimeDataWithFile() +QMimeData *DataTransfer::toMimeDataWithFile(std::function<void(QMimeData &)> callback) { - QMimeData *resultMimeData = new QMimeData(); // QScopedPointer? - + resultMimeData->clear(); enum class ItemKind { File, String, @@ -99,8 +102,43 @@ QMimeData *DataTransfer::toMimeDataWithFile() case ItemKind::File: { m_webFile = item.call<emscripten::val>("getAsFile"); qstdweb::File webfile(m_webFile); - QUrl fileUrl(QStringLiteral("file:///") + QString::fromStdString(webfile.name())); - uriList.append(fileUrl); + if (webfile.size() == 0 + || webfile.size() > 1e+9) { // limit file size to 1 GB + qWarning() << "Something happened, File size is" << webfile.size(); + continue; + } + QByteArray fileContent(webfile.size(), Qt::Uninitialized); + QString mimeFormat = QString::fromStdString(webfile.type()); + QString fileName = QString::fromStdString(webfile.name()); + + // there's a file, now read it + webfile.stream(fileContent.data(), [=]() { + QList<QUrl> fileUriList; + if (!fileContent.isEmpty()) { + if (mimeFormat.contains("image/")) { + QImage image; + image.loadFromData(fileContent, nullptr); + resultMimeData->setImageData(image); + } else { + QUrl fileUrl(QStringLiteral("file:///") + + QString::fromStdString(webfile.name())); + fileUriList.append(fileUrl); + QFile file(fileName); + if (!file.open(QFile::WriteOnly)) { + qWarning() << "File was not opened"; + return; + } + + if (file.write(fileContent) < 0) + qWarning() << "Write failed"; + + file.close(); + resultMimeData->setUrls(fileUriList); + } + callback(*resultMimeData); + } + }); + break; } case ItemKind::String: @@ -131,9 +169,15 @@ QMimeData *DataTransfer::toMimeDataWithFile() } break; } - } - if (!uriList.isEmpty()) + } // end items + + if (!uriList.isEmpty()) { resultMimeData->setUrls(uriList); + } + + if (resultMimeData->formats().length() > 0) + callback(*resultMimeData); + return resultMimeData; } |