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
  55     connect(m_ui->textCategoryName, &QLineEdit::textChanged, this, &TorrentCategoryDialog::categoryNameChanged);
  56     connect(m_ui->comboUseDownloadPath, &QComboBox::currentIndexChanged, this, &TorrentCategoryDialog::useDownloadPathChanged);
  57 }
  58
  59 TorrentCategoryDialog::~TorrentCategoryDialog()
  60 {
  61     delete m_ui;
  62 }
  63
  64 QString TorrentCategoryDialog::createCategory(QWidget *parent, const QString &parentCategoryName)
  65 {
  66     using BitTorrent::CategoryOptions;
  67     using BitTorrent::Session;
  68
  69     QString newCategoryName = parentCategoryName;
  70     if (!newCategoryName.isEmpty())
  71         newCategoryName += u'/';
  72     newCategoryName += tr("New Category");
  73
  74     TorrentCategoryDialog dialog {parent};
  75     dialog.setCategoryName(newCategoryName);
  76     while (dialog.exec() == TorrentCategoryDialog::Accepted)
  77     {
  78         newCategoryName = dialog.categoryName();
  79
  80         if (!Session::isValidCategoryName(newCategoryName))
  81         {
  82             QMessageBox::critical(
  83                         parent, tr("Invalid category name")
  84                         , tr("Category name cannot contain '\\'.\n"
  85                              "Category name cannot start/end with '/'.\n"
  86                              "Category name cannot contain '//' sequence."));
  87         }
  88         else if (Session::instance()->categories().contains(newCategoryName))
  89         {
  90             QMessageBox::critical(
  91                         parent, tr("Category creation error")
  92                         , tr("Category with the given name already exists.\n"
  93                              "Please choose a different name and try again."));
  94         }
  95         else
  96         {
  97             Session::instance()->addCategory(newCategoryName, dialog.categoryOptions());
  98             return newCategoryName;
  99         }
 100     }
 101
 102     return {};
 103 }
 104
 105 void TorrentCategoryDialog::editCategory(QWidget *parent, const QString &categoryName)
 106 {
 107     using BitTorrent::Session;
 108
 109     Q_ASSERT(Session::instance()->categories().contains(categoryName));
 110
 111     auto dialog = new TorrentCategoryDialog(parent);
 112     dialog->setAttribute(Qt::WA_DeleteOnClose);
 113     dialog->setCategoryNameEditable(false);
 114     dialog->setCategoryName(categoryName);
 115     dialog->setCategoryOptions(Session::instance()->categoryOptions(categoryName));
 116     connect(dialog, &TorrentCategoryDialog::accepted, parent, [dialog, categoryName]()
 117     {
 118         Session::instance()->editCategory(categoryName, dialog->categoryOptions());
 119     });
 120     dialog->open();
 121 }
 122
 123 void TorrentCategoryDialog::setCategoryNameEditable(bool editable)
 124 {
 125     m_ui->textCategoryName->setEnabled(editable);
 126 }
 127
 128 QString TorrentCategoryDialog::categoryName() const
 129 {
 130     return m_ui->textCategoryName->text();
 131 }
 132
 133 void TorrentCategoryDialog::setCategoryName(const QString &categoryName)
 134 {
 135     m_ui->textCategoryName->setText(categoryName);
 136
 137     const int subcategoryNameStart = categoryName.lastIndexOf(u"/") + 1;
 138     m_ui->textCategoryName->setSelection(subcategoryNameStart, (categoryName.size() - subcategoryNameStart));
 139 }
 140
 141 BitTorrent::CategoryOptions TorrentCategoryDialog::categoryOptions() const
 142 {
 143     BitTorrent::CategoryOptions categoryOptions;
 144     categoryOptions.savePath = m_ui->comboSavePath->selectedPath();
 145     if (m_ui->comboUseDownloadPath->currentIndex() == 1)
 146         categoryOptions.downloadPath = {true, m_ui->comboDownloadPath->selectedPath()};
 147     else if (m_ui->comboUseDownloadPath->currentIndex() == 2)
 148         categoryOptions.downloadPath = {false, {}};
 149
 150     return categoryOptions;
 151 }
 152
 153 void TorrentCategoryDialog::setCategoryOptions(const BitTorrent::CategoryOptions &categoryOptions)
 154 {
 155     m_ui->comboSavePath->setSelectedPath(categoryOptions.savePath);
 156     if (categoryOptions.downloadPath)
 157     {
 158         m_ui->comboUseDownloadPath->setCurrentIndex(categoryOptions.downloadPath->enabled ? 1 : 2);
 159         m_ui->comboDownloadPath->setSelectedPath(categoryOptions.downloadPath->enabled ? categoryOptions.downloadPath->path : Path());
 160     }
 161     else
 162     {
 163         m_ui->comboUseDownloadPath->setCurrentIndex(0);
 164         m_ui->comboDownloadPath->setSelectedPath({});
 165     }
 166 }
 167
 168 void TorrentCategoryDialog::categoryNameChanged(const QString &categoryName)
 169 {
 170     const Path categoryPath = Utils::Fs::toValidPath(categoryName);
 171     const auto *btSession = BitTorrent::Session::instance();
 172     m_ui->comboSavePath->setPlaceholder(btSession->savePath() / categoryPath);
 173
 174     const int index = m_ui->comboUseDownloadPath->currentIndex();
 175     const bool useDownloadPath = (index == 1) || ((index == 0) && BitTorrent::Session::instance()->isDownloadPathEnabled());
 176     if (useDownloadPath)
 177         m_ui->comboDownloadPath->setPlaceholder(btSession->downloadPath() / categoryPath);
 178
 179     m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(!categoryName.isEmpty());
 180 }
 181
 182 void TorrentCategoryDialog::useDownloadPathChanged(const int index)
 183 {
 184     if (const Path selectedPath = m_ui->comboDownloadPath->selectedPath(); !selectedPath.isEmpty())
 185         m_lastEnteredDownloadPath = selectedPath;
 186
 187     m_ui->labelDownloadPath->setEnabled(index == 1);
 188     m_ui->comboDownloadPath->setEnabled(index == 1);
 189     m_ui->comboDownloadPath->setSelectedPath((index == 1) ? m_lastEnteredDownloadPath : Path());
 190
 191     const QString categoryName = m_ui->textCategoryName->text();
 192     const Path categoryPath = BitTorrent::Session::instance()->downloadPath() / Utils::Fs::toValidPath(categoryName);
 193     const bool useDownloadPath = (index == 1) || ((index == 0) && BitTorrent::Session::instance()->isDownloadPathEnabled());
 194     m_ui->comboDownloadPath->setPlaceholder(useDownloadPath ? categoryPath : Path());
 195 }