plasma-workspace/libnotificationmanager/utils.cpp

98 lines
3.2 KiB
C++

/*
* Copyright 2019 Kai Uwe Broulik <kde@privat.broulik.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "utils_p.h"
#include <QAbstractItemModel>
#include <QAbstractProxyModel>
#include <QCoreApplication>
#include <QDBusConnection>
#include <QDBusConnectionInterface>
#include <QFile>
#include <QTextStream>
#include <KConcatenateRowsProxyModel>
#include <KProcessList>
using namespace NotificationManager;
QString Utils::processNameFromPid(uint pid)
{
auto processInfo = KProcessList::processInfo(pid);
if (!processInfo.isValid()) {
return QString();
}
return processInfo.name();
}
QString Utils::desktopEntryFromPid(uint pid)
{
QFile environFile(QStringLiteral("/proc/%1/environ").arg(QString::number(pid)));
if (!environFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
return QString();
}
const QByteArray bamfDesktopFileHint = QByteArrayLiteral("BAMF_DESKTOP_FILE_HINT");
const auto lines = environFile.readAll().split('\0');
for (const QByteArray &line : lines) {
const int equalsIdx = line.indexOf('=');
if (equalsIdx <= 0) {
continue;
}
const QByteArray key = line.left(equalsIdx);
if (key == bamfDesktopFileHint) {
const QByteArray value = line.mid(equalsIdx + 1);
return value;
}
}
return QString();
}
QModelIndex Utils::mapToModel(const QModelIndex &idx, const QAbstractItemModel *sourceModel)
{
// KModelIndexProxyMapper can only map different indices to a single source
// but we have the other way round, a single index that splits into different source models
QModelIndex resolvedIdx = idx;
while (resolvedIdx.isValid() && resolvedIdx.model() != sourceModel) {
if (auto *proxyModel = qobject_cast<const QAbstractProxyModel *>(resolvedIdx.model())) {
resolvedIdx = proxyModel->mapToSource(resolvedIdx);
// KConcatenateRowsProxyModel isn't a "real" proxy model, so we need to special case for it :(
} else if (auto *concatenateModel = qobject_cast<const KConcatenateRowsProxyModel *>(resolvedIdx.model())) {
resolvedIdx = concatenateModel->mapToSource(resolvedIdx);
} else {
if (resolvedIdx.model() != sourceModel) {
resolvedIdx = QModelIndex(); // give up
}
}
}
return resolvedIdx;
}
bool Utils::isDBusMaster()
{
return qApp->property("_plasma_dbus_master").toBool();
}