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/* extcap_argument_file.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <extcap_argument.h>
#include <extcap_argument_file.h>
#include <wsutil/utf8_entities.h>
#include "ui/qt/widgets/wireshark_file_dialog.h"
#include <QObject>
#include <QWidget>
#include <QLabel>
#include <QLineEdit>
#include <QBoxLayout>
#include <QPushButton>
#include <QDir>
#include <QFileInfo>
#include <QVariant>
#include <epan/prefs.h>
#include <ui/qt/utils/color_utils.h>
#include <ui/all_files_wildcard.h>
#include <extcap_parser.h>
ExtcapArgumentFileSelection::ExtcapArgumentFileSelection (extcap_arg * argument, QObject *parent) :
ExtcapArgument(argument, parent), textBox(0)
{
}
ExtcapArgumentFileSelection::~ExtcapArgumentFileSelection()
{
if (textBox != NULL)
delete textBox;
}
QWidget * ExtcapArgumentFileSelection::createEditor(QWidget * parent)
{
QString text = defaultValue();
QString buttonText(UTF8_HORIZONTAL_ELLIPSIS);
QString buttonClearText(tr("Clear"));
QWidget * fileWidget = new QWidget(parent);
QHBoxLayout * editLayout = new QHBoxLayout();
QMargins margins = editLayout->contentsMargins();
editLayout->setContentsMargins(0, 0, 0, margins.bottom());
fileWidget->setContentsMargins(margins.left(), margins.right(), 0, margins.bottom());
QPushButton * buttonSelect = new QPushButton(buttonText, fileWidget);
QPushButton * buttonClear = new QPushButton(buttonClearText, fileWidget);
textBox = new QLineEdit(text, parent);
textBox->setReadOnly(true);
/* Value is empty if no file is selected */
const char *prefval = (_argument->pref_valptr && (*_argument->pref_valptr)) ? *_argument->pref_valptr : NULL;
if (prefval)
{
QString storeValue(prefval);
if (storeValue.length() > 0 && storeValue.compare(text) != 0)
text = storeValue.trimmed();
}
textBox->setText(text);
if (_argument->tooltip != NULL)
{
textBox->setToolTip(QString().fromUtf8(_argument->tooltip));
buttonSelect->setToolTip(QString().fromUtf8(_argument->tooltip));
}
connect(buttonSelect, &QPushButton::clicked, this, &ExtcapArgumentFileSelection::openFileDialog);
connect(buttonClear, &QPushButton::clicked, this, &ExtcapArgumentFileSelection::clearFilename);
editLayout->addWidget(textBox);
editLayout->addWidget(buttonSelect);
editLayout->addWidget(buttonClear);
fileWidget->setLayout(editLayout);
return fileWidget;
}
QString ExtcapArgumentFileSelection::value()
{
if (textBox == 0)
return QString();
return textBox->text();
}
/* opens the file dialog */
void ExtcapArgumentFileSelection::openFileDialog()
{
QString filename = textBox->text();
QDir workingDir = QDir::currentPath();
if (QFileInfo(filename).exists())
workingDir = QFileInfo(filename).dir();
QString fileExt(tr("All Files (" ALL_FILES_WILDCARD ")"));
if (_argument->fileextension != NULL)
{
QString givenExt = QString().fromUtf8(_argument->fileextension);
if (givenExt.length() != 0)
fileExt.prepend(";;").prepend(givenExt);
}
if (fileExists())
{
/* UI should check that the file exists */
filename = WiresharkFileDialog::getOpenFileName((QWidget*)(textBox->parent()),
QString().fromUtf8(_argument->display) + " " + tr("Open File"),
workingDir.absolutePath(), fileExt);
}
else
{
/* File might or might not exist. Actual overwrite handling is extcap specific
* (e.g. boolflag argument if user wants to always overwrite the file)
*/
filename = WiresharkFileDialog::getSaveFileName((QWidget*)(textBox->parent()),
QString().fromUtf8(_argument->display) + " " + tr("Select File"),
workingDir.absolutePath(), fileExt, nullptr, QFileDialog::Option::DontConfirmOverwrite);
}
if (! filename.isEmpty() && (! fileExists() || QFileInfo(filename).exists()))
{
textBox->setText(filename);
emit valueChanged();
}
}
void ExtcapArgumentFileSelection::clearFilename()
{
textBox->clear();
emit valueChanged();
}
bool ExtcapArgumentFileSelection::isValid()
{
bool valid = false;
if (textBox->text().length() > 0)
{
if (_argument->fileexists)
valid = QFileInfo(textBox->text()).exists();
else
valid = true;
}
else if (! isRequired())
valid = true;
QString lblInvalidColor = ColorUtils::fromColorT(prefs.gui_text_invalid).name();
QString txtStyle("QLineEdit { background-color: %1; } ");
textBox->setStyleSheet(txtStyle.arg(valid ? QString("") : lblInvalidColor));
return valid;
}
void ExtcapArgumentFileSelection::setDefaultValue()
{
clearFilename();
}
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