src/settings/general/previewssettingspage.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2006 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "previewssettingspage.h"
   8
   9 #include "dolphin_generalsettings.h"
  10 #include "configurepreviewplugindialog.h"
  11 #include "settings/serviceitemdelegate.h"
  12 #include "settings/servicemodel.h"
  13
  14 #include <KIO/PreviewJob>
  15 #include <KLocalizedString>
  16 #include <KPluginMetaData>
  17
  18 #include <QHBoxLayout>
  19 #include <QLabel>
  20 #include <QListView>
  21 #include <QScroller>
  22 #include <QShowEvent>
  23 #include <QSortFilterProxyModel>
  24 #include <QSpinBox>
  25
  26 // default settings
  27 namespace {
  28     const int DefaultMaxLocalPreviewSize = 0; // 0 MB
  29     const int DefaultMaxRemotePreviewSize = 0; // 0 MB
  30 }
  31
  32 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  33     SettingsPageBase(parent),
  34     m_initialized(false),
  35     m_listView(nullptr),
  36     m_enabledPreviewPlugins(),
  37     m_localFileSizeBox(nullptr),
  38     m_remoteFileSizeBox(nullptr)
  39 {
  40     QVBoxLayout* topLayout = new QVBoxLayout(this);
  41
  42     QLabel* showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews in the view for:"), this);
  43
  44     m_listView = new QListView(this);
  45     QScroller::grabGesture(m_listView->viewport(), QScroller::TouchGesture);
  46
  47 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
  48     ServiceItemDelegate* delegate = new ServiceItemDelegate(m_listView, m_listView);
  49     connect(delegate, &ServiceItemDelegate::requestServiceConfiguration,
  50             this, &PreviewsSettingsPage::configureService);
  51     m_listView->setItemDelegate(delegate);
  52 #endif
  53
  54     ServiceModel* serviceModel = new ServiceModel(this);
  55     QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
  56     proxyModel->setSourceModel(serviceModel);
  57     proxyModel->setSortRole(Qt::DisplayRole);
  58     proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
  59
  60     m_listView->setModel(proxyModel);
  61     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  62     m_listView->setUniformItemSizes(true);
  63
  64     QLabel* localFileSizeLabel = new QLabel(i18n("Skip previews for local files above:"), this);
  65
  66     m_localFileSizeBox = new QSpinBox(this);
  67     m_localFileSizeBox->setSingleStep(1);
  68     m_localFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  69     m_localFileSizeBox->setRange(0, 9999999); /* MB */
  70     m_localFileSizeBox->setSpecialValueText(i18n("No limit"));
  71
  72     QHBoxLayout* localFileSizeBoxLayout = new QHBoxLayout();
  73     localFileSizeBoxLayout->addWidget(localFileSizeLabel);
  74     localFileSizeBoxLayout->addStretch(0);
  75     localFileSizeBoxLayout->addWidget(m_localFileSizeBox);
  76
  77     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  78
  79     m_remoteFileSizeBox = new QSpinBox(this);
  80     m_remoteFileSizeBox->setSingleStep(1);
  81     m_remoteFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  82     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  83     m_remoteFileSizeBox->setSpecialValueText(i18n("No previews"));
  84
  85     QHBoxLayout* remoteFileSizeBoxLayout = new QHBoxLayout();
  86     remoteFileSizeBoxLayout->addWidget(remoteFileSizeLabel);
  87     remoteFileSizeBoxLayout->addStretch(0);
  88     remoteFileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  89
  90     topLayout->addWidget(showPreviewsLabel);
  91     topLayout->addWidget(m_listView);
  92     topLayout->addLayout(localFileSizeBoxLayout);
  93     topLayout->addLayout(remoteFileSizeBoxLayout);
  94
  95     loadSettings();
  96
  97     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
  98     connect(m_localFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
  99     connect(m_remoteFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
 100 }
 101
 102 PreviewsSettingsPage::~PreviewsSettingsPage()
 103 {
 104 }
 105
 106 void PreviewsSettingsPage::applySettings()
 107 {
 108     const QAbstractItemModel* model = m_listView->model();
 109     const int rowCount = model->rowCount();
 110     if (rowCount > 0) {
 111         m_enabledPreviewPlugins.clear();
 112         for (int i = 0; i < rowCount; ++i) {
 113             const QModelIndex index = model->index(i, 0);
 114             const bool checked = model->data(index, Qt::CheckStateRole).toBool();
 115             if (checked) {
 116                 const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
 117                 m_enabledPreviewPlugins.append(enabledPlugin);
 118             }
 119         }
 120     }
 121
 122     KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 123     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 124
 125     if (!m_localFileSizeBox->value()) {
 126         globalConfig.deleteEntry("MaximumSize", KConfigBase::Normal | KConfigBase::Global);
 127     } else {
 128         const qulonglong maximumLocalSize = static_cast<qulonglong>(m_localFileSizeBox->value()) * 1024 * 1024;
 129         globalConfig.writeEntry("MaximumSize",
 130                                 maximumLocalSize,
 131                                 KConfigBase::Normal | KConfigBase::Global);
 132     }
 133
 134     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 135     globalConfig.writeEntry("MaximumRemoteSize",
 136                             maximumRemoteSize,
 137                             KConfigBase::Normal | KConfigBase::Global);
 138
 139     globalConfig.sync();
 140 }
 141
 142 void PreviewsSettingsPage::restoreDefaults()
 143 {
 144     m_localFileSizeBox->setValue(DefaultMaxLocalPreviewSize);
 145     m_remoteFileSizeBox->setValue(DefaultMaxRemotePreviewSize);
 146 }
 147
 148 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 149 {
 150     if (!event->spontaneous() && !m_initialized) {
 151         loadPreviewPlugins();
 152         m_initialized = true;
 153     }
 154     SettingsPageBase::showEvent(event);
 155 }
 156
 157 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
 158 void PreviewsSettingsPage::configureService(const QModelIndex& index)
 159 {
 160     const QAbstractItemModel* model = index.model();
 161     const QString pluginName = model->data(index).toString();
 162     const QString desktopEntryName = model->data(index, ServiceModel::DesktopEntryNameRole).toString();
 163
 164     ConfigurePreviewPluginDialog* dialog = new ConfigurePreviewPluginDialog(pluginName, desktopEntryName, this);
 165     dialog->setAttribute(Qt::WA_DeleteOnClose);
 166     dialog->show();
 167 }
 168 #endif
 169
 170 void PreviewsSettingsPage::loadPreviewPlugins()
 171 {
 172     QAbstractItemModel* model = m_listView->model();
 173
 174     const QVector<KPluginMetaData> plugins = KIO::PreviewJob::availableThumbnailerPlugins();
 175     for (const KPluginMetaData &plugin : plugins) {
 176         const bool show = m_enabledPreviewPlugins.contains(plugin.pluginId());
 177
 178         model->insertRow(0);
 179         const QModelIndex index = model->index(0, 0);
 180         model->setData(index, show, Qt::CheckStateRole);
 181         model->setData(index, plugin.name(), Qt::DisplayRole);
 182         model->setData(index, plugin.pluginId(), ServiceModel::DesktopEntryNameRole);
 183
 184 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
 185         const bool configurable = plugin.value(QStringLiteral("Configurable"), false);
 186         model->setData(index, configurable, ServiceModel::ConfigurableRole);
 187 #endif
 188     }
 189
 190     model->sort(Qt::DisplayRole);
 191 }
 192
 193 void PreviewsSettingsPage::loadSettings()
 194 {
 195     const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 196     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
 197
 198     const qulonglong defaultLocalPreview = static_cast<qulonglong>(DefaultMaxLocalPreviewSize) * 1024 * 1024;
 199     const qulonglong maxLocalByteSize = globalConfig.readEntry("MaximumSize", defaultLocalPreview);
 200     const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
 201     m_localFileSizeBox->setValue(maxLocalMByteSize);
 202
 203     const qulonglong defaultRemotePreview = static_cast<qulonglong>(DefaultMaxRemotePreviewSize) * 1024 * 1024;
 204     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 205     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 206     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 207 }