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/*
* datetimepage.cc - Implementation of the UI.SysMeta.DateTime page
* horizon-qt5, the Qt 5 user interface for
* Project Horizon
*
* Copyright (c) 2019 Adélie Linux and contributors. All rights reserved.
* This code is licensed under the AGPL 3.0 license, as noted in the
* LICENSE-code file in the root directory of this repository.
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
#include "datetimepage.hh"
#include <QCheckBox>
#include <QGroupBox>
#include <QHBoxLayout>
#include <QLineEdit>
#include <QTimeZone>
#include <QVBoxLayout>
#ifdef HAS_INSTALL_ENV
# include <sys/capability.h>
# include <time.h>
#endif /* HAS_INSTALL_ENV */
TimeZone::TimeZone() : ianaName(), friendlyName(), offset(0) {}
TimeZone::TimeZone(QByteArray iana) {
QTimeZone zone(iana);
QString offset, longName, comment;
this->ianaName = iana;
offset = zone.displayName(QTimeZone::GenericTime, QTimeZone::OffsetName);
this->friendlyName = "(" + offset + ") " + iana;
longName = zone.displayName(QTimeZone::GenericTime, QTimeZone::LongName);
if(longName != offset) {
this->friendlyName += " - " + longName;
}
comment = zone.comment();
if(comment.size() > 0 && comment != offset) {
this->friendlyName += " (" + comment + ")";
}
this->offset = zone.standardTimeOffset(QDateTime::currentDateTimeUtc());
}
TimeZoneModel::TimeZoneModel(QWidget *parent) : QAbstractListModel(parent) {
for(auto &iana : QTimeZone::availableTimeZoneIds()) {
/* we don't support raw timezones because tzdata doesn't */
if(iana.startsWith("UTC") && iana.size() > 3) continue;
TimeZone tzObj(iana);
zones.push_back(tzObj);
}
std::sort(zones.begin(), zones.end(), [](TimeZone tz1, TimeZone tz2) {
if(tz1.offset < tz2.offset) return true;
if(tz2.offset < tz1.offset) return false;
return tz1.friendlyName < tz2.friendlyName;
});
}
int TimeZoneModel::rowCount(const QModelIndex &) const {
return zones.size();
}
QVariant TimeZoneModel::data(const QModelIndex &index, int role) const {
if(!index.isValid()) {
return QVariant();
}
if(index.row() > zones.size()) {
return QVariant();
}
TimeZone zone = zones.at(index.row());
switch(role)
{
case Qt::DisplayRole:
return zone.friendlyName;
case Qt::ToolTipRole:
return QString(zone.ianaName);
default:
return QVariant();
}
}
QVariant TimeZoneModel::headerData(int, Qt::Orientation, int role) const {
if(role != Qt::DisplayRole) {
return QVariant();
}
return QString("Time Zone");
}
/*! Try to gain CAP_SYS_TIME capability.
* If we do, then enable the date/time edit boxes.
* This does nothing in the Runtime Environment.
*/
void DateTimePage::maybeRaiseCap() {
#ifdef HAS_INSTALL_ENV
cap_t captain;
cap_value_t time_cap = CAP_SYS_TIME;
if(!CAP_IS_SUPPORTED(CAP_SYS_TIME))
return;
captain = cap_get_proc();
if(captain == nullptr)
return;
if(cap_set_flag(captain, CAP_EFFECTIVE, 1, &time_cap, CAP_SET) == -1) {
cap_free(captain);
return;
}
if(cap_set_proc(captain)) {
cap_free(captain);
return;
}
cap_free(captain);
dateEdit->setEnabled(true);
timeEdit->setEnabled(true);
#endif /* HAS_INSTALL_ENV */
}
DateTimePage::DateTimePage(QWidget *parent) : HorizonWizardPage(parent) {
setTitle(tr("Date and Time Settings"));
loadWatermark("intro");
dateEdit = new QDateEdit(QDate::currentDate());
dateEdit->setDisplayFormat("dd MMMM yyyy");
dateEdit->setEnabled(false);
timeEdit = new QTimeEdit(QTime::currentTime());
timeEdit->setDisplayFormat("HH:mm:ss");
timeEdit->setEnabled(false);
#ifdef HAS_INSTALL_ENV
/* explanations:
*
* isEnabled check:
* to prevent wasting time in the case where we don't have perms
*
* Qt::UTC:
* CLOCK_REALTIME is always UTC, so we need the UTC form of the
* current date/time.
*/
connect(dateEdit, &QDateEdit::dateChanged, [=](const QDate &date) {
if(dateEdit->isEnabled() && date != QDate::currentDate()) {
QDateTime *newDT = new QDateTime(date, QTime::currentTime(),
Qt::UTC);
struct timespec ts = {newDT->toSecsSinceEpoch(), 0};
clock_settime(CLOCK_REALTIME, &ts);
}
});
connect(timeEdit, &QTimeEdit::timeChanged, [=](const QTime &time) {
if(timeEdit->isEnabled() && time != QTime::currentTime()) {
QDateTime *newDT = new QDateTime(QDate::currentDate(), time,
Qt::UTC);
struct timespec ts = {newDT->toSecsSinceEpoch(), 0};
clock_settime(CLOCK_REALTIME, &ts);
}
});
#endif /* HAS_INSTALL_ENV */
updateTimer = new QTimer(this);
updateTimer->setInterval(1000);
connect(updateTimer, &QTimer::timeout, [=]{
dateEdit->setDate(QDate::currentDate());
timeEdit->setTime(QTime::currentTime());
});
QHBoxLayout *dateTimeLayout = new QHBoxLayout;
dateTimeLayout->addWidget(dateEdit);
dateTimeLayout->addWidget(timeEdit);
QGroupBox *dateTimeGroup = new QGroupBox(tr("Date and Time"));
dateTimeGroup->setLayout(dateTimeLayout);
QLineEdit *timeZoneSearch = new QLineEdit;
timeZoneSearch->addAction(QIcon::fromTheme("edit-find"),
QLineEdit::LeadingPosition);
timeZoneSearch->setPlaceholderText(tr("Search for a time zone"));
sortModel = new QSortFilterProxyModel(this);
sortModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
sortModel->setSourceModel(&zoneModel);
connect(timeZoneSearch, &QLineEdit::textChanged, [=](const QString &text) {
sortModel->setFilterFixedString(text);
});
timeZoneList = new QListView;
timeZoneList->setModel(sortModel);
timeZoneList->setSelectionMode(QAbstractItemView::SingleSelection);
connect(timeZoneList->selectionModel(), &QItemSelectionModel::currentChanged,
[=]() {
emit timezoneChanged();
});
registerField("timezone*", this, "selectedTimeZone", SIGNAL(timezoneChanged()));
QVBoxLayout *timeZoneLayout = new QVBoxLayout;
timeZoneLayout->addWidget(timeZoneSearch);
timeZoneLayout->addWidget(timeZoneList);
QGroupBox *timeZoneGroup = new QGroupBox(tr("Time Zone"));
timeZoneGroup->setLayout(timeZoneLayout);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addStretch();
mainLayout->addWidget(dateTimeGroup);
mainLayout->addStretch();
mainLayout->addWidget(timeZoneGroup);
mainLayout->addStretch();
setLayout(mainLayout);
maybeRaiseCap();
}
QString DateTimePage::selectedTimeZone() {
QModelIndex curr = timeZoneList->selectionModel()->currentIndex();
return sortModel->data(curr, Qt::ToolTipRole).toString();
}
void DateTimePage::initializePage() {
updateTimer->start();
}
void DateTimePage::cleanupPage() {
updateTimer->stop();
}
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