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wasm: add local file access manual test

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Testes file load and save, computes a sha256 hash
for verifying file content.

Change-Id: Id7f697c4dfd41e051442350f4050f04b493cfc18
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This commit is contained in:
Morten Johan Sørvig 2019-08-13 14:18:26 +02:00
parent aa91b0083e
commit dcbcda81b4
2 changed files with 108 additions and 0 deletions
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8
tests/manual/wasm/localfiles/localfiles.pro Normal file
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TEMPLATE = app
TARGET = localfiles
QT += core gui widgets
OBJECTS_DIR = .obj
MOC_DIR = .moc
SOURCES += main.cpp

100
tests/manual/wasm/localfiles/main.cpp Normal file
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/****************************************************************************
**
** 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtWidgets/QtWidgets>
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();
}