src/gui/torrentcategorydialog.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2017, 2021  Vladimir Golovnev <glassez@yandex.ru>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #include "torrentcategorydialog.h"
  30
  31 #include <QMessageBox>
  32 #include <QPushButton>
  33
  34 #include "base/bittorrent/session.h"
  35 #include "base/utils/fs.h"
  36 #include "ui_torrentcategorydialog.h"
  37
  38 TorrentCategoryDialog::TorrentCategoryDialog(QWidget *parent)
  39     : QDialog {parent}
  40     , m_ui {new Ui::TorrentCategoryDialog}
  41 {
  42     m_ui->setupUi(this);
  43
  44     m_ui->comboSavePath->setMode(FileSystemPathEdit::Mode::DirectorySave);
  45     m_ui->comboSavePath->setDialogCaption(tr("Choose save path"));
  46
  47     m_ui->comboDownloadPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
  48     m_ui->comboDownloadPath->setDialogCaption(tr("Choose download path"));
  49     m_ui->comboDownloadPath->setEnabled(false);
  50     m_ui->labelDownloadPath->setEnabled(false);
  51
  52     // disable save button
  53     m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
  54     connect(m_ui->buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
  55     connect(m_ui->buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
  56
  57     connect(m_ui->textCategoryName, &QLineEdit::textChanged, this, &TorrentCategoryDialog::categoryNameChanged);
  58     connect(m_ui->comboUseDownloadPath, &QComboBox::currentIndexChanged, this, &TorrentCategoryDialog::useDownloadPathChanged);
  59 }
  60
  61 TorrentCategoryDialog::~TorrentCategoryDialog()
  62 {
  63     delete m_ui;
  64 }
  65
  66 QString TorrentCategoryDialog::createCategory(QWidget *parent, const QString &parentCategoryName)
  67 {
  68     using BitTorrent::CategoryOptions;
  69     using BitTorrent::Session;
  70
  71     QString newCategoryName = parentCategoryName;
  72     if (!newCategoryName.isEmpty())
  73         newCategoryName += u'/';
  74     newCategoryName += tr("New Category");
  75
  76     TorrentCategoryDialog dialog {parent};
  77     dialog.setCategoryName(newCategoryName);
  78     while (dialog.exec() == TorrentCategoryDialog::Accepted)
  79     {
  80         newCategoryName = dialog.categoryName();
  81
  82         if (!Session::isValidCategoryName(newCategoryName))
  83         {
  84             QMessageBox::critical(
  85                         parent, tr("Invalid category name")
  86                         , tr("Category name cannot contain '\\'.\n"
  87                              "Category name cannot start/end with '/'.\n"
  88                              "Category name cannot contain '//' sequence."));
  89         }
  90         else if (Session::instance()->categories().contains(newCategoryName))
  91         {
  92             QMessageBox::critical(
  93                         parent, tr("Category creation error")
  94                         , tr("Category with the given name already exists.\n"
  95                              "Please choose a different name and try again."));
  96         }
  97         else
  98         {
  99             Session::instance()->addCategory(newCategoryName, dialog.categoryOptions());
 100             return newCategoryName;
 101         }
 102     }
 103
 104     return {};
 105 }
 106
 107 void TorrentCategoryDialog::editCategory(QWidget *parent, const QString &categoryName)
 108 {
 109     using BitTorrent::Session;
 110
 111     Q_ASSERT(Session::instance()->categories().contains(categoryName));
 112
 113     auto *dialog = new TorrentCategoryDialog(parent);
 114     dialog->setAttribute(Qt::WA_DeleteOnClose);
 115     dialog->setCategoryNameEditable(false);
 116     dialog->setCategoryName(categoryName);
 117     dialog->setCategoryOptions(Session::instance()->categoryOptions(categoryName));
 118     connect(dialog, &TorrentCategoryDialog::accepted, parent, [dialog, categoryName]()
 119     {
 120         Session::instance()->editCategory(categoryName, dialog->categoryOptions());
 121     });
 122     dialog->open();
 123 }
 124
 125 void TorrentCategoryDialog::setCategoryNameEditable(bool editable)
 126 {
 127     m_ui->textCategoryName->setEnabled(editable);
 128 }
 129
 130 QString TorrentCategoryDialog::categoryName() const
 131 {
 132     return m_ui->textCategoryName->text();
 133 }
 134
 135 void TorrentCategoryDialog::setCategoryName(const QString &categoryName)
 136 {
 137     m_ui->textCategoryName->setText(categoryName);
 138
 139     const int subcategoryNameStart = categoryName.lastIndexOf(u"/") + 1;
 140     m_ui->textCategoryName->setSelection(subcategoryNameStart, (categoryName.size() - subcategoryNameStart));
 141 }
 142
 143 BitTorrent::CategoryOptions TorrentCategoryDialog::categoryOptions() const
 144 {
 145     BitTorrent::CategoryOptions categoryOptions;
 146     categoryOptions.savePath = m_ui->comboSavePath->selectedPath();
 147     if (m_ui->comboUseDownloadPath->currentIndex() == 1)
 148         categoryOptions.downloadPath = {true, m_ui->comboDownloadPath->selectedPath()};
 149     else if (m_ui->comboUseDownloadPath->currentIndex() == 2)
 150         categoryOptions.downloadPath = {false, {}};
 151
 152     return categoryOptions;
 153 }
 154
 155 void TorrentCategoryDialog::setCategoryOptions(const BitTorrent::CategoryOptions &categoryOptions)
 156 {
 157     m_ui->comboSavePath->setSelectedPath(categoryOptions.savePath);
 158     if (categoryOptions.downloadPath)
 159     {
 160         m_ui->comboUseDownloadPath->setCurrentIndex(categoryOptions.downloadPath->enabled ? 1 : 2);
 161         m_ui->comboDownloadPath->setSelectedPath(categoryOptions.downloadPath->enabled ? categoryOptions.downloadPath->path : Path());
 162     }
 163     else
 164     {
 165         m_ui->comboUseDownloadPath->setCurrentIndex(0);
 166         m_ui->comboDownloadPath->setSelectedPath({});
 167     }
 168 }
 169
 170 void TorrentCategoryDialog::categoryNameChanged(const QString &categoryName)
 171 {
 172     const auto *btSession = BitTorrent::Session::instance();
 173     m_ui->comboSavePath->setPlaceholder(btSession->categorySavePath(categoryName, categoryOptions()));
 174
 175     const int index = m_ui->comboUseDownloadPath->currentIndex();
 176     const bool useDownloadPath = (index == 1) || ((index == 0) && btSession->isDownloadPathEnabled());
 177     if (useDownloadPath)
 178         m_ui->comboDownloadPath->setPlaceholder(btSession->categoryDownloadPath(categoryName, categoryOptions()));
 179
 180     m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(!categoryName.isEmpty());
 181 }
 182
 183 void TorrentCategoryDialog::useDownloadPathChanged(const int index)
 184 {
 185     if (const Path selectedPath = m_ui->comboDownloadPath->selectedPath(); !selectedPath.isEmpty())
 186         m_lastEnteredDownloadPath = selectedPath;
 187
 188     m_ui->labelDownloadPath->setEnabled(index == 1);
 189     m_ui->comboDownloadPath->setEnabled(index == 1);
 190     m_ui->comboDownloadPath->setSelectedPath((index == 1) ? m_lastEnteredDownloadPath : Path());
 191
 192     const auto *btSession = BitTorrent::Session::instance();
 193     const QString categoryName = m_ui->textCategoryName->text();
 194     const bool useDownloadPath = (index == 1) || ((index == 0) && btSession->isDownloadPathEnabled());
 195     const Path categoryPath = btSession->categoryDownloadPath(categoryName, categoryOptions());
 196     m_ui->comboDownloadPath->setPlaceholder(useDownloadPath ? categoryPath : Path());
 197 }