kmail/dialog/archivefolderdialog.cpp

   1 /* Copyright 2009 Klarälvdalens Datakonsult AB
   2
   3    This program is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU General Public License as
   5    published by the Free Software Foundation; either version 2 of
   6    the License or (at your option) version 3 or any later version
   7    accepted by the membership of KDE e.V. (or its successor approved
   8    by the membership of KDE e.V.), which shall act as a proxy
   9    defined in Section 14 of version 3 of the license.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 #include "archivefolderdialog.h"
  20
  21 #include "MailCommon/BackupJob"
  22 #include "kmkernel.h"
  23 #include "kmmainwidget.h"
  24 #include "MailCommon/FolderRequester"
  25 #include "MessageViewer/MessageViewerUtil"
  26
  27 #include <AkonadiCore/Collection>
  28
  29 #include <KLocalizedString>
  30 #include <kcombobox.h>
  31 #include <kurlrequester.h>
  32 #include <kmessagebox.h>
  33 #include <KSeparator>
  34
  35 #include <qlabel.h>
  36 #include <qcheckbox.h>
  37 #include <QGridLayout>
  38 #include <QStandardPaths>
  39 #include <QMimeDatabase>
  40 #include <KConfigGroup>
  41 #include <QDialogButtonBox>
  42 #include <QPushButton>
  43 #include <QVBoxLayout>
  44
  45 using namespace KMail;
  46 using namespace MailCommon;
  47
  48 QString ArchiveFolderDialog::standardArchivePath(const QString &folderName)
  49 {
  50     QString currentPath = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
  51     QDir dir(currentPath);
  52     if (!dir.exists()) {
  53         currentPath = QDir::homePath();
  54     }
  55     return currentPath + QLatin1Char('/') +
  56            i18nc("Start of the filename for a mail archive file", "Archive") + QLatin1Char('_') + folderName + QLatin1Char('_') + QDate::currentDate().toString(Qt::ISODate) + QLatin1String(".tar.bz2");
  57 }
  58
  59 ArchiveFolderDialog::ArchiveFolderDialog(QWidget *parent)
  60     : QDialog(parent), mParentWidget(parent)
  61 {
  62     setObjectName(QStringLiteral("archive_folder_dialog"));
  63     setWindowTitle(i18nc("@title:window for archiving a folder", "Archive Folder"));
  64     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
  65     QVBoxLayout *topLayout = new QVBoxLayout;
  66     setLayout(topLayout);
  67     mOkButton = buttonBox->button(QDialogButtonBox::Ok);
  68     mOkButton->setDefault(true);
  69     mOkButton->setShortcut(Qt::CTRL | Qt::Key_Return);
  70     connect(buttonBox, &QDialogButtonBox::accepted, this, &ArchiveFolderDialog::slotAccepted);
  71     connect(buttonBox, &QDialogButtonBox::rejected, this, &ArchiveFolderDialog::reject);
  72     mOkButton->setDefault(true);
  73     mOkButton->setText(i18nc("@action", "Archive"));
  74     setModal(true);
  75     QWidget *mainWidget = new QWidget(this);
  76     topLayout->addWidget(mainWidget);
  77     topLayout->addWidget(buttonBox);
  78     QGridLayout *mainLayout = new QGridLayout(mainWidget);
  79
  80     int row = 0;
  81
  82     // TODO: Explaination label
  83
  84     QLabel *folderLabel = new QLabel(i18n("&Folder:"), mainWidget);
  85     mainLayout->addWidget(folderLabel, row, 0);
  86     mFolderRequester = new FolderRequester(mainWidget);
  87     mFolderRequester->setMustBeReadWrite(false);
  88     mFolderRequester->setNotAllowToCreateNewFolder(true);
  89     connect(mFolderRequester, &FolderRequester::folderChanged, this, &ArchiveFolderDialog::slotFolderChanged);
  90     folderLabel->setBuddy(mFolderRequester);
  91     mainLayout->addWidget(mFolderRequester, row, 1);
  92     row++;
  93
  94     QLabel *formatLabel = new QLabel(i18n("F&ormat:"), mainWidget);
  95     mainLayout->addWidget(formatLabel, row, 0);
  96     mFormatComboBox = new KComboBox(mainWidget);
  97     formatLabel->setBuddy(mFormatComboBox);
  98
  99     // These combobox values have to stay in sync with the ArchiveType enum from BackupJob!
 100     mFormatComboBox->addItem(i18n("Compressed Zip Archive (.zip)"));
 101     mFormatComboBox->addItem(i18n("Uncompressed Archive (.tar)"));
 102     mFormatComboBox->addItem(i18n("BZ2-Compressed Tar Archive (.tar.bz2)"));
 103     mFormatComboBox->addItem(i18n("GZ-Compressed Tar Archive (.tar.gz)"));
 104     mFormatComboBox->setCurrentIndex(2);
 105     connect(mFormatComboBox, static_cast<void (KComboBox::*)(int)>(&KComboBox::activated), this, &ArchiveFolderDialog::slotFixFileExtension);
 106     mainLayout->addWidget(mFormatComboBox, row, 1);
 107     row++;
 108
 109     QLabel *fileNameLabel = new QLabel(i18n("&Archive File:"), mainWidget);
 110     mainLayout->addWidget(fileNameLabel, row, 0);
 111     mUrlRequester = new KUrlRequester(mainWidget);
 112     mUrlRequester->setMode(KFile::LocalOnly | KFile::File);
 113     mUrlRequester->setFilter(QStringLiteral("*.tar *.zip *.tar.gz *.tar.bz2"));
 114     fileNameLabel->setBuddy(mUrlRequester);
 115     connect(mUrlRequester, &KUrlRequester::urlSelected, this, &ArchiveFolderDialog::slotFixFileExtension);
 116     connect(mUrlRequester, &KUrlRequester::textChanged, this, &ArchiveFolderDialog::slotUrlChanged);
 117     mainLayout->addWidget(mUrlRequester, row, 1);
 118     row++;
 119
 120     // TODO: Make this appear more dangerous!
 121     mDeleteCheckBox = new QCheckBox(i18n("&Delete folder and subfolders after completion"), mainWidget);
 122     mainLayout->addWidget(mDeleteCheckBox, row, 0, 1, 2, Qt::AlignLeft);
 123     row++;
 124
 125     mRecursiveCheckBox = new QCheckBox(i18n("Archive all subfolders"), mainWidget);
 126     connect(mRecursiveCheckBox, &QCheckBox::clicked, this, &ArchiveFolderDialog::slotRecursiveCheckboxClicked);
 127     mainLayout->addWidget(mRecursiveCheckBox, row, 0, 1, 2, Qt::AlignLeft);
 128     mRecursiveCheckBox->setChecked(true);
 129     row++;
 130
 131     // TODO: what's this, tooltips
 132
 133     // TODO: Warn that user should do mail check for online IMAP and possibly cached IMAP as well
 134
 135     mainLayout->addWidget(new KSeparator(), row, 0, 1, 2);
 136     row++;
 137     mainLayout->setColumnStretch(1, 1);
 138     mainLayout->addItem(new QSpacerItem(1, 1, QSizePolicy::Expanding, QSizePolicy::Expanding), row, 0);
 139
 140     // Make it a bit bigger, else the folder requester cuts off the text too early
 141     resize(500, minimumSize().height());
 142 }
 143
 144 bool canRemoveFolder(const Akonadi::Collection &col)
 145 {
 146     const QSharedPointer<FolderCollection> folder = FolderCollection::forCollection(col, false);
 147     return folder
 148            && col.isValid()
 149            && !col.isVirtual()
 150            && (col.rights() & Akonadi::Collection::CanDeleteCollection)
 151            && !folder->isStructural()
 152            && !folder->isSystemFolder();
 153 }
 154
 155 void ArchiveFolderDialog::slotRecursiveCheckboxClicked()
 156 {
 157     slotFolderChanged(mFolderRequester->collection());
 158 }
 159
 160 void ArchiveFolderDialog::slotFolderChanged(const Akonadi::Collection &folder)
 161 {
 162     mDeleteCheckBox->setEnabled(allowToDeleteFolders(folder));
 163 }
 164
 165 bool ArchiveFolderDialog::allowToDeleteFolders(const Akonadi::Collection &folder) const
 166 {
 167     return canRemoveFolder(folder) && mRecursiveCheckBox->isChecked();
 168 }
 169
 170 void ArchiveFolderDialog::setFolder(const Akonadi::Collection &defaultCollection)
 171 {
 172     mFolderRequester->setCollection(defaultCollection);
 173     // TODO: what if the file already exists?
 174     mUrlRequester->setUrl(standardArchivePath(defaultCollection.name()));
 175     const QSharedPointer<FolderCollection> folder = FolderCollection::forCollection(defaultCollection, false);
 176     mDeleteCheckBox->setEnabled(allowToDeleteFolders(defaultCollection));
 177     mOkButton->setEnabled(defaultCollection.isValid() && folder && !folder->isStructural());
 178 }
 179
 180 void ArchiveFolderDialog::slotAccepted()
 181 {
 182     if (!MessageViewer::Util::checkOverwrite(mUrlRequester->url(), this)) {
 183         return;
 184     }
 185
 186     if (!mFolderRequester->hasCollection()) {
 187         KMessageBox::information(this, i18n("Please select the folder that should be archived."),
 188                                  i18n("No folder selected"));
 189         return;
 190     }
 191
 192     MailCommon::BackupJob *backupJob = new MailCommon::BackupJob(mParentWidget);
 193     backupJob->setRootFolder(mFolderRequester->collection());
 194     backupJob->setSaveLocation(mUrlRequester->url());
 195     backupJob->setArchiveType(static_cast<BackupJob::ArchiveType>(mFormatComboBox->currentIndex()));
 196     backupJob->setDeleteFoldersAfterCompletion(mDeleteCheckBox->isEnabled() && mDeleteCheckBox->isChecked());
 197     backupJob->setRecursive(mRecursiveCheckBox->isChecked());
 198     backupJob->start();
 199     accept();
 200 }
 201
 202 void ArchiveFolderDialog::slotFixFileExtension()
 203 {
 204     const int numExtensions = 4;
 205     // The extensions here are also sorted, like the enum order of BackupJob::ArchiveType
 206     const char *extensions[numExtensions] = { ".zip", ".tar", ".tar.bz2", ".tar.gz" };
 207
 208     QString fileName = mUrlRequester->url().path();
 209     if (fileName.isEmpty())
 210         fileName = standardArchivePath(mFolderRequester->hasCollection() ?
 211                                        mFolderRequester->collection().name() : QString());
 212
 213     QMimeDatabase db;
 214     const QString extension = db.suffixForFileName(fileName);
 215     if (!extension.isEmpty()) {
 216         fileName = fileName.left(fileName.length() - extension.length() - 1);
 217     }
 218
 219     // Now, we've got a filename without an extension, simply append the correct one
 220     fileName += QLatin1String(extensions[mFormatComboBox->currentIndex()]);
 221     mUrlRequester->setUrl(fileName);
 222 }
 223
 224 void ArchiveFolderDialog::slotUrlChanged(const QString &url)
 225 {
 226     mOkButton->setEnabled(!url.isEmpty());
 227 }
 228