1 files changed, 133 insertions, 95 deletions
diff --git a/tests/manual/wasm/localfiles/main.cpp b/tests/manual/wasm/localfiles/main.cpp
index 9dfc30885c..862bff50a4 100644
--- a/tests/manual/wasm/localfiles/main.cpp
+++ b/tests/manual/wasm/localfiles/main.cpp
@@ -1,100 +1,138 @@
-/****************************************************************************
-**
-** Copyright (C) 2019 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2019 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 #include <QtWidgets/QtWidgets>
 
+#include <emscripten/val.h>
+#include <emscripten.h>
+
+class AppWindow : public QObject
+{
+Q_OBJECT
+public:
+    AppWindow() : m_layout(new QVBoxLayout(&m_loadFileUi)),
+                  m_window(emscripten::val::global("window")),
+                  m_showOpenFilePickerFunction(m_window["showOpenFilePicker"]),
+                  m_showSaveFilePickerFunction(m_window["showSaveFilePicker"])
+    {
+        addWidget<QLabel>("Filename filter");
+
+        const bool localFileApiAvailable =
+            !m_showOpenFilePickerFunction.isUndefined() && !m_showSaveFilePickerFunction.isUndefined();
+
+        m_useLocalFileApisCheckbox = addWidget<QCheckBox>("Use the window.showXFilePicker APIs");
+        m_useLocalFileApisCheckbox->setEnabled(localFileApiAvailable);
+        m_useLocalFileApisCheckbox->setChecked(localFileApiAvailable);
+
+        m_filterEdit = addWidget<QLineEdit>("Images (*.png *.jpg);;PDF (*.pdf);;*.txt");
+
+        auto* loadFile = addWidget<QPushButton>("Load File");
+
+        m_fileInfo = addWidget<QLabel>("Opened file:");
+        m_fileInfo->setTextInteractionFlags(Qt::TextSelectableByMouse);
+
+        m_fileHash = addWidget<QLabel>("Sha256:");
+        m_fileHash->setTextInteractionFlags(Qt::TextSelectableByMouse);
+
+        addWidget<QLabel>("Saved file name");
+        m_savedFileNameEdit = addWidget<QLineEdit>("qttestresult");
+
+        m_saveFile = addWidget<QPushButton>("Save File");
+        m_saveFile->setEnabled(false);
+
+        m_layout->addStretch();
+
+        m_loadFileUi.setLayout(m_layout);
+
+        QObject::connect(m_useLocalFileApisCheckbox, &QCheckBox::toggled, std::bind(&AppWindow::onUseLocalFileApisCheckboxToggled, this));
+
+        QObject::connect(loadFile, &QPushButton::clicked, this, &AppWindow::onLoadClicked);
+
+        QObject::connect(m_saveFile, &QPushButton::clicked, std::bind(&AppWindow::onSaveClicked, this));
+    }
+
+    void show() {
+        m_loadFileUi.show();
+    }
+
+    ~AppWindow() = default;
+
+private Q_SLOTS:
+    void onUseLocalFileApisCheckboxToggled()
+    {
+        m_window.set("showOpenFilePicker",
+            m_useLocalFileApisCheckbox->isChecked() ?
+                m_showOpenFilePickerFunction : emscripten::val::undefined());
+        m_window.set("showSaveFilePicker",
+            m_useLocalFileApisCheckbox->isChecked() ?
+                m_showSaveFilePickerFunction : emscripten::val::undefined());
+    }
+
+    void onFileContentReady(const QString &fileName, const QByteArray &fileContents)
+    {
+        m_fileContent = fileContents;
+        m_fileInfo->setText(QString("Opened file: %1 size: %2").arg(fileName).arg(fileContents.size()));
+        m_saveFile->setEnabled(true);
+
+        QTimer::singleShot(100, this, &AppWindow::computeAndDisplayFileHash); // update UI before computing hash
+    }
+
+    void computeAndDisplayFileHash()
+    {
+        QByteArray hash = QCryptographicHash::hash(m_fileContent, QCryptographicHash::Sha256);
+        m_fileHash->setText(QString("Sha256: %1").arg(QString(hash.toHex())));
+    }
+
+    void onFileSaved(bool success)
+    {
+        m_fileInfo->setText(QString("File save result: %1").arg(success ? "success" : "failed"));
+    }
+
+    void onLoadClicked()
+    {
+        QFileDialog::getOpenFileContent(
+            m_filterEdit->text(),
+            std::bind(&AppWindow::onFileContentReady, this, std::placeholders::_1, std::placeholders::_2),
+            &m_loadFileUi);
+    }
+
+    void onSaveClicked()
+    {
+        m_fileInfo->setText("Saving file... (no result information with current API)");
+        QFileDialog::saveFileContent(m_fileContent, m_savedFileNameEdit->text());
+    }
+
+private:
+    template <class T, class... Args>
+    T* addWidget(Args... args)
+    {
+        T* widget = new T(std::forward<Args>(args)..., &m_loadFileUi);
+        m_layout->addWidget(widget);
+        return widget;
+    }
+
+    QWidget m_loadFileUi;
+
+    QCheckBox* m_useLocalFileApisCheckbox;
+    QLineEdit* m_filterEdit;
+    QVBoxLayout *m_layout;
+    QLabel* m_fileInfo;
+    QLabel* m_fileHash;
+    QLineEdit* m_savedFileNameEdit;
+    QPushButton* m_saveFile;
+
+    emscripten::val m_window;
+    emscripten::val m_showOpenFilePickerFunction;
+    emscripten::val m_showSaveFilePickerFunction;
+
+    QByteArray m_fileContent;
+};
+
 int main(int argc, char **argv)
 {
-    QApplication app(argc, argv);
-
-    QByteArray content;
-
-    QWidget loadFileUi;
-    QVBoxLayout *layout = new QVBoxLayout();
-    QPushButton *loadFile = new QPushButton("Load File");
-    QLabel *fileInfo = new QLabel("Opened file:");
-    fileInfo->setTextInteractionFlags(Qt::TextSelectableByMouse);
-    QLabel *fileHash = new QLabel("Sha256:");
-    fileHash->setTextInteractionFlags(Qt::TextSelectableByMouse);
-    QPushButton *saveFile = new QPushButton("Save File");
-    saveFile->setEnabled(false);
-
-    auto onFileReady = [=, &content](const QString &fileName, const QByteArray &fileContents) {
-        content = fileContents;
-        fileInfo->setText(QString("Opened file: %1 size: %2").arg(fileName).arg(fileContents.size()));
-        saveFile->setEnabled(true);
-
-        auto computeDisplayFileHash = [=](){
-          QByteArray hash = QCryptographicHash::hash(fileContents, QCryptographicHash::Sha256);
-          fileHash->setText(QString("Sha256: %1").arg(QString(hash.toHex())));
-        };
-
-        QTimer::singleShot(100, computeDisplayFileHash); // update UI before computing hash
-    };
-    auto onLoadClicked = [=](){
-        QFileDialog::getOpenFileContent("*.*", onFileReady);
-    };
-    QObject::connect(loadFile, &QPushButton::clicked, onLoadClicked);
-
-    auto onSaveClicked = [=, &content]() {
-        QFileDialog::saveFileContent(content, "qtsavefiletest.dat");
-    };
-    QObject::connect(saveFile, &QPushButton::clicked, onSaveClicked);
-
-    layout->addWidget(loadFile);
-    layout->addWidget(fileInfo);
-    layout->addWidget(fileHash);
-    layout->addWidget(saveFile);
-    layout->addStretch();
-
-    loadFileUi.setLayout(layout);
-    loadFileUi.show();
-
-    return app.exec();
+    QApplication application(argc, argv);
+    AppWindow window;
+    window.show();
+    return application.exec();
 }
+
+#include "main.moc"