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#include "devicesdialog.h"
#include "ui_devicesdialog.h"
#include "utils.h"
#include <usb/Context.h>
#include <mtp/ptp/Device.h>
#include <mtp/ptp/PipePacketer.h>
#include <QDebug>
#include <QMessageBox>
#include <QPushButton>
#include <algorithm>
DevicesDialog::DevicesDialog(bool resetDevice, QWidget *parent) :
QDialog(parent),
_resetDevice(resetDevice),
ui(new Ui::DevicesDialog)
{
ui->setupUi(this);
_buttonScan = ui->buttonBox->addButton(tr("Rescan Devices"), QDialogButtonBox::ActionRole);
_buttonKill = ui->buttonBox->addButton(tr("Kill Users"), QDialogButtonBox::ActionRole);
connect(ui->listWidget, SIGNAL(itemClicked(QListWidgetItem *)), SLOT(itemClicked(QListWidgetItem *)));
connect(ui->listWidget, SIGNAL(itemDoubleClicked(QListWidgetItem *)), SLOT(itemDoubleClicked(QListWidgetItem *)));
connect(_buttonScan, SIGNAL(clicked()), SLOT(scan()));
connect(_buttonKill, SIGNAL(clicked()), SLOT(kill()));
}
mtp::DevicePtr DevicesDialog::getDevice()
{
int row = ui->listWidget->currentRow();
if (row >= 0 && row < static_cast<int>(_devices.size()))
return _devices[row].Device;
else
return nullptr;
}
void DevicesDialog::kill()
{
qDebug("kill");
int index = ui->listWidget->currentRow();
if (index < 0 && index >= static_cast<int>(_devices.size()))
return;
auto & row = _devices[index];
bool canKill = !row.Processes.empty();
QString processList;
for (auto & desc : row.Processes)
{
processList += QString("%1 (pid: %2)\n").arg(fromUtf8(desc.Name)).arg(desc.Id);
}
if (canKill)
processList = tr("The following processes are keeping file descriptors for your device:\n") + processList;
QMessageBox dialog(
QMessageBox::Warning,
tr("Device is busy"),
tr("Device is busy, maybe another process is using it.\n\n") +
processList +
tr("Close other MTP applications and restart Android File Transfer.\n"
"\nPress Abort to kill them or Ignore to try next device."),
(canKill? QMessageBox::Ok: QMessageBox::StandardButton(0)) | QMessageBox::Cancel,
this
);
dialog.setDefaultButton(QMessageBox::Ignore);
dialog.setEscapeButton(QMessageBox::Ignore);
auto r = dialog.exec();
if ((r & QMessageBox::Ok) == QMessageBox::Ok)
{
qDebug("kill'em all");
mtp::usb::DeviceBusyException::Kill(row.Processes);
scan();
}
}
void DevicesDialog::scan()
{
qDebug("scan");
bool claimInterface = true;
bool resetDevice = _resetDevice;
_devices.clear();
mtp::usb::ContextPtr ctx(new mtp::usb::Context);
auto devices = ctx->GetDevices();
for (auto desc = devices.begin(); desc != devices.end(); ++desc)
{
qDebug("probing device...");
try
{
auto device = mtp::Device::Open(ctx, *desc, claimInterface, resetDevice);
_devices.push_back({ *desc, device, {} });
}
catch(const mtp::usb::DeviceBusyException &ex)
{
if (!ex.Processes.empty())
_devices.push_back(Row { *desc, nullptr, ex.Processes });
}
catch(const std::exception &ex)
{ qWarning("Device::Find failed: %s", ex.what()); }
}
std::stable_sort(_devices.begin(), _devices.end(), [](const Row & a, const Row & b) {
return a.Device > b.Device;
});
auto it = std::remove_if(_devices.begin(), _devices.end(), [](const Row & row) {
return !row.Device && row.Processes.empty();
});
_devices.erase(it, _devices.end());
ui->listWidget->clear();
for(auto & row : _devices)
{
QString name;
if (row.Device)
{
auto info = row.Device->GetInfo();
name = QString("%1 %2 %3")
.arg(fromUtf8(info.Manufacturer))
.arg(fromUtf8(info.Model))
.arg(fromUtf8(info.SerialNumber));
}
else
{
auto & desc = row.Descriptor;
name = QString(tr("USB Device %1:%2"))
.arg(static_cast<int>(desc->GetVendorId()), 4, 16, QChar('0'))
.arg(static_cast<int>(desc->GetProductId()), 4, 16, QChar('0'));
}
ui->listWidget->addItem(name);
}
if (!_devices.empty())
ui->listWidget->setCurrentRow(0);
updateButtons();
}
int DevicesDialog::exec()
{
scan();
if (_devices.empty())
return QDialog::Rejected;
if (_devices.size() == 1 && _devices.front().Device)
{
return QDialog::Accepted;
}
return QDialog::exec();
}
void DevicesDialog::updateButtons()
{
_buttonKill->setEnabled(false);
int row = ui->listWidget->currentRow();
if (row >= 0 && row < static_cast<int>(_devices.size()))
{
_buttonKill->setEnabled(!_devices[row].Processes.empty());
}
}
void DevicesDialog::itemClicked(QListWidgetItem *)
{ updateButtons(); }
void DevicesDialog::itemDoubleClicked(QListWidgetItem *)
{ updateButtons(); accept(); }
DevicesDialog::~DevicesDialog()
{
delete ui;
}
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