src/settings/general/configurepreviewplugindialog.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  18  ***************************************************************************/
  19
  20 #include "configurepreviewplugindialog.h"
  21
  22 #include <KPluginLoader>
  23 #include <KLocalizedString>
  24 #include <KJobWidgets>
  25 #include <KIO/JobUiDelegate>
  26 #include <KIO/DeleteJob>
  27 #include <KIO/ThumbCreator>
  28
  29 #include <QUrl>
  30 #include <QLibrary>
  31 #include <QVBoxLayout>
  32 #include <QStandardPaths>
  33 #include <QDialogButtonBox>
  34 #include <QPushButton>
  35
  36 ConfigurePreviewPluginDialog::ConfigurePreviewPluginDialog(const QString& pluginName,
  37                                                            const QString& desktopEntryName,
  38                                                            QWidget* parent) :
  39     QDialog(parent)
  40 {
  41     QSharedPointer<ThumbCreator> previewPlugin;
  42     const QString pluginPath = KPluginLoader::findPlugin(desktopEntryName);
  43     if (!pluginPath.isEmpty()) {
  44         newCreator create = (newCreator)QLibrary::resolve(pluginPath, "new_creator");
  45         if (create) {
  46             previewPlugin.reset(dynamic_cast<ThumbCreator*>(create()));
  47         }
  48     }
  49
  50     setWindowTitle(i18nc("@title:window", "Configure Preview for %1", pluginName));
  51     setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum);
  52     setMinimumWidth(400);
  53
  54     auto layout = new QVBoxLayout(this);
  55     setLayout(layout);
  56
  57     if (previewPlugin) {
  58         auto configurationWidget = previewPlugin->createConfigurationWidget();
  59         configurationWidget->setParent(this);
  60         layout->addWidget(configurationWidget);
  61
  62         layout->addStretch();
  63
  64         connect(this, &ConfigurePreviewPluginDialog::accepted, this, [=] {
  65             // TODO: It would be great having a mechanism to tell PreviewJob that only previews
  66             // for a specific MIME-type should be regenerated. As this is not available yet we
  67             // delete the whole thumbnails directory.
  68             previewPlugin->writeConfiguration(configurationWidget);
  69
  70             // http://specifications.freedesktop.org/thumbnail-spec/thumbnail-spec-latest.html#DIRECTORY
  71             const QString thumbnailsPath = QStandardPaths::writableLocation(QStandardPaths::GenericCacheLocation) + QLatin1String("/thumbnails/");
  72             KIO::del(QUrl::fromLocalFile(thumbnailsPath), KIO::HideProgressInfo);
  73         });
  74     }
  75
  76     auto buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
  77     connect(buttonBox, &QDialogButtonBox::accepted, this, &ConfigurePreviewPluginDialog::accept);
  78     connect(buttonBox, &QDialogButtonBox::rejected, this, &ConfigurePreviewPluginDialog::reject);
  79     layout->addWidget(buttonBox);
  80
  81     auto okButton = buttonBox->button(QDialogButtonBox::Ok);
  82     okButton->setShortcut(Qt::CTRL | Qt::Key_Return);
  83     okButton->setDefault(true);
  84 }