1 files changed, 157 insertions, 0 deletions
diff --git a/src/plugins/platforms/wasm/qwasmfiledialoghelper.cpp b/src/plugins/platforms/wasm/qwasmfiledialoghelper.cpp
new file mode 100644
index 00000000000..1e6e2b1f644
--- /dev/null
+++ b/src/plugins/platforms/wasm/qwasmfiledialoghelper.cpp
@@ -0,0 +1,157 @@
+// Copyright (C) 2025 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "qwasmfiledialoghelper.h"
+
+#include <QtCore/QDebug>
+#include <QtCore/QUrl>
+#include <QtGui/private/qwasmlocalfileaccess_p.h>
+#include <QtCore/private/qwasmlocalfileengine_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QWasmFileDialogHelper::QWasmFileDialogHelper()
+    : m_eventLoop(nullptr)
+{
+
+}
+
+QWasmFileDialogHelper::~QWasmFileDialogHelper()
+{
+
+}
+
+bool QWasmFileDialogHelper::defaultNameFilterDisables() const
+{
+    return false;
+}
+
+void QWasmFileDialogHelper::setDirectory(const QUrl &directory)
+{
+    Q_UNUSED(directory)
+}
+
+QUrl QWasmFileDialogHelper::directory() const
+{
+    return QUrl();
+}
+
+void QWasmFileDialogHelper::selectFile(const QUrl &file)
+{
+    m_selectedFiles.clear();
+    m_selectedFiles.append(file);
+}
+
+QList<QUrl> QWasmFileDialogHelper::selectedFiles() const
+{
+    return m_selectedFiles;
+}
+
+void QWasmFileDialogHelper::setFilter()
+{
+
+}
+
+void QWasmFileDialogHelper::selectNameFilter(const QString &filter)
+{
+    Q_UNUSED(filter);
+    // TODO
+}
+
+QString QWasmFileDialogHelper::selectedNameFilter() const
+{
+    return QString();
+}
+
+void QWasmFileDialogHelper::exec()
+{
+    QEventLoop eventLoop;
+    m_eventLoop = &eventLoop;
+    eventLoop.exec();
+    m_eventLoop = nullptr;
+}
+
+bool QWasmFileDialogHelper::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent)
+{
+    Q_UNUSED(flags)
+    Q_UNUSED(modality)
+    Q_UNUSED(parent)
+    showFileDialog();
+    return true;
+}
+
+void QWasmFileDialogHelper::hide()
+{
+
+}
+
+void QWasmFileDialogHelper::showFileDialog()
+{
+    if (options()->acceptMode() == QFileDialogOptions::AcceptOpen) {
+        // Use name filters from options
+        QString nameFilter = options()->nameFilters().join(";;");
+        if (nameFilter.isEmpty())
+            nameFilter = "*";
+
+        QWasmLocalFileAccess::showOpenFileDialog(nameFilter.toStdString(), [this](bool accepted, std::vector<qstdweb::File> files) {
+            onOpenDialogClosed(accepted, files);
+        });
+    } else if (options()->acceptMode() == QFileDialogOptions::AcceptSave) {
+        QString suggestion = m_selectedFiles.isEmpty() ? QString() : QUrl(m_selectedFiles.first()).fileName();
+        m_selectedFiles.clear();
+
+        QWasmLocalFileAccess::showSaveFileDialog(suggestion.toStdString(), [this](bool accepted, qstdweb::FileSystemFileHandle file){
+            onSaveDialogClosed(accepted, file);
+        });
+    }
+}
+
+void QWasmFileDialogHelper::onOpenDialogClosed(bool accepted, std::vector<qstdweb::File> files)
+{
+    m_selectedFiles.clear();
+
+    if (!accepted) {
+        emit reject();
+        return;
+    }
+
+    // Track opened files
+    for (const auto &file : files) {
+        QString wasmFileName = QWasmFileEngineHandler::addFile(file);
+        QUrl fileUrl(wasmFileName);
+        m_selectedFiles.append(fileUrl);
+    }
+
+    // Emit signals
+    if (m_selectedFiles.size() > 0) {
+        emit fileSelected(m_selectedFiles.first());
+        emit filesSelected(m_selectedFiles);
+    }
+    emit accept();
+
+    // exit exec() if in exec()
+    if (m_eventLoop)
+        m_eventLoop->quit();
+}
+
+void QWasmFileDialogHelper::onSaveDialogClosed(bool accepted, qstdweb::FileSystemFileHandle file)
+{
+    if (!accepted) {
+        emit reject();
+        return;
+    }
+
+    // Track save file
+    QString wasmFileName = QWasmFileEngineHandler::addFile(file);
+    QUrl fileUrl(wasmFileName);
+    m_selectedFiles.append(fileUrl);
+
+    // Emit signals
+    emit fileSelected(m_selectedFiles.first());
+    emit accept();
+
+    if (m_eventLoop)
+        m_eventLoop->quit();
+}
+
+QT_END_NAMESPACE