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lxqt-panel-packaging/plugin-mount/popup.cpp

168 lines
4.7 KiB

/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXDE-Qt - a lightweight, Qt based, desktop toolset
* http://razor-qt.org
*
* Copyright: 2011-2013 Razor team
* Authors:
* Petr Vanek <petr@scribus.info>
* Alexander Sokoloff <sokoloff.a@gmail.com>
*
* This program or 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) any later version.
*
* 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, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include "popup.h"
#include "../panel/ilxqtpanelplugin.h"
#include <QDesktopWidget>
#include <QVBoxLayout>
#include <QTimer>
#include <Solid/StorageAccess>
#include <Solid/StorageDrive>
#include <Solid/DeviceNotifier>
// Paulo: I'm not sure what this is for
static bool hasRemovableParent(Solid::Device device)
{
// qDebug() << "acess:" << device.udi();
for ( ; !device.udi().isEmpty(); device = device.parent())
{
Solid::StorageDrive* drive = device.as<Solid::StorageDrive>();
if (drive && drive->isRemovable())
{
// qDebug() << "removable parent drive:" << device.udi();
return true;
}
}
return false;
}
Popup::Popup(ILXQtPanelPlugin * plugin, QWidget* parent):
QDialog(parent, Qt::Window | Qt::WindowStaysOnTopHint | Qt::CustomizeWindowHint | Qt::Popup | Qt::X11BypassWindowManagerHint),
mPlugin(plugin),
mPlaceholder(nullptr),
mDisplayCount(0)
{
setObjectName("LXQtMountPopup");
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
setLayout(new QVBoxLayout(this));
layout()->setMargin(0);
setAttribute(Qt::WA_AlwaysShowToolTips);
mPlaceholder = new QLabel(tr("No devices are available"), this);
mPlaceholder->setObjectName("NoDiskLabel");
layout()->addWidget(mPlaceholder);
//Perform the potential long time operation after object construction
//Note: can't use QTimer::singleShot with lambda in pre QT 5.4 code
QTimer * aux_timer = new QTimer;
connect(aux_timer, &QTimer::timeout, [this, aux_timer]
{
delete aux_timer; //cleanup
for (Solid::Device device : Solid::Device::listFromType(Solid::DeviceInterface::StorageAccess))
if (hasRemovableParent(device))
addItem(device);
});
aux_timer->setSingleShot(true);
aux_timer->start(0);
connect(Solid::DeviceNotifier::instance(), &Solid::DeviceNotifier::deviceAdded,
this, &Popup::onDeviceAdded);
connect(Solid::DeviceNotifier::instance(), &Solid::DeviceNotifier::deviceRemoved,
this, &Popup::onDeviceRemoved);
}
void Popup::showHide()
{
setVisible(isHidden());
}
void Popup::onDeviceAdded(QString const & udi)
{
Solid::Device device(udi);
if (device.is<Solid::StorageAccess>() && hasRemovableParent(device))
addItem(device);
}
void Popup::onDeviceRemoved(QString const & udi)
{
MenuDiskItem* item = nullptr;
const int size = layout()->count() - 1;
for (int i = size; 0 <= i; --i)
{
QWidget *w = layout()->itemAt(i)->widget();
if (w == mPlaceholder)
continue;
MenuDiskItem *it = static_cast<MenuDiskItem *>(w);
if (udi == it->deviceUdi())
{
item = it;
break;
}
}
if (item != nullptr)
{
layout()->removeWidget(item);
item->deleteLater();
--mDisplayCount;
if (mDisplayCount == 0)
mPlaceholder->show();
}
}
void Popup::showEvent(QShowEvent *event)
{
mPlaceholder->setVisible(mDisplayCount == 0);
realign();
setFocus();
activateWindow();
QWidget::showEvent(event);
emit visibilityChanged(true);
}
void Popup::hideEvent(QHideEvent *event)
{
QWidget::hideEvent(event);
emit visibilityChanged(false);
}
void Popup::addItem(Solid::Device device)
{
MenuDiskItem *item = new MenuDiskItem(device, this);
connect(item, &MenuDiskItem::invalid, this, &Popup::onDeviceRemoved);
item->setVisible(true);
layout()->addWidget(item);
mDisplayCount++;
if (mDisplayCount != 0)
mPlaceholder->hide();
if (isVisible())
realign();
}
void Popup::realign()
{
adjustSize();
setGeometry(mPlugin->calculatePopupWindowPos(sizeHint()));
}