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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#include "qtouchoutputmapping_p.h"
#include <QFile>
#include <QVariantMap>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
QT_BEGIN_NAMESPACE
bool QTouchOutputMapping::load()
{
static QByteArray configFile = qgetenv("QT_QPA_EGLFS_KMS_CONFIG");
if (configFile.isEmpty())
return false;
QFile file(QString::fromUtf8(configFile));
if (!file.open(QFile::ReadOnly)) {
qWarning("touch input support: Failed to open %s", configFile.constData());
return false;
}
const QJsonDocument doc = QJsonDocument::fromJson(file.readAll());
if (!doc.isObject()) {
qWarning("touch input support: Failed to parse %s", configFile.constData());
return false;
}
// What we are interested is the virtualIndex and touchDevice properties for
// each element in the outputs array.
const QJsonArray outputs = doc.object().value(QLatin1String("outputs")).toArray();
for (int i = 0; i < outputs.size(); ++i) {
const QVariantMap output = outputs.at(i).toObject().toVariantMap();
if (!output.contains(QStringLiteral("touchDevice")))
continue;
if (!output.contains(QStringLiteral("name"))) {
qWarning("evdevtouch: Output %d specifies touchDevice but not name, this is wrong", i);
continue;
}
const QString &deviceNode = output.value(QStringLiteral("touchDevice")).toString();
const QString &screenName = output.value(QStringLiteral("name")).toString();
m_screenTable.insert(deviceNode, screenName);
}
return true;
}
QString QTouchOutputMapping::screenNameForDeviceNode(const QString &deviceNode)
{
return m_screenTable.value(deviceNode);
}
QT_END_NAMESPACE
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