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/*
* SPDX-FileCopyrightText: 2006 Peter Penz <[email protected]>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "previewssettingspage.h"
#include "dolphin_generalsettings.h"
#include "settings/servicemodel.h"
#include <KContextualHelpButton>
#include <KIO/PreviewJob>
#include <KLocalizedString>
#include <KPluginMetaData>
#include <QCheckBox>
#include <QFormLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QListView>
#include <QScroller>
#include <QShowEvent>
#include <QSortFilterProxyModel>
#include <QSpinBox>
// default settings
namespace
{
const int DefaultMaxLocalPreviewSize = 0; // 0 MB
const int DefaultMaxRemotePreviewSize = 0; // 0 MB
const bool EnableRemoteFolderThumbnail = false;
}
PreviewsSettingsPage::PreviewsSettingsPage(QWidget *parent)
: SettingsPageBase(parent)
, m_initialized(false)
, m_listView(nullptr)
, m_enabledPreviewPlugins()
, m_localFileSizeBox(nullptr)
, m_remoteFileSizeBox(nullptr)
, m_enableRemoteFolderThumbnail(nullptr)
{
QVBoxLayout *topLayout = new QVBoxLayout(this);
QLabel *showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews in the view for:"), this);
m_listView = new QListView(this);
QScroller::grabGesture(m_listView->viewport(), QScroller::TouchGesture);
ServiceModel *serviceModel = new ServiceModel(this);
QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
proxyModel->setSourceModel(serviceModel);
proxyModel->setSortRole(Qt::DisplayRole);
proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
m_listView->setModel(proxyModel);
m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
m_listView->setUniformItemSizes(true);
// i18n: This label forms a full sentence together with the spinbox content.
// Depending on the option chosen in the spinbox, it reads "Show previews for [files below n MiB]"
// or "Show previews for [files of any size]".
QLabel *localFileSizeLabel = new QLabel(i18nc("@label:spinbox", "Show previews for"), this);
m_localFileSizeBox = new QSpinBox(this);
m_localFileSizeBox->setSingleStep(1);
m_localFileSizeBox->setPrefix(i18nc("used as a prefix in a spinbox showing e.g. 'Show previews for [files below 3 MiB]'", "files below "));
m_localFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
m_localFileSizeBox->setRange(0, 9999999); /* MB */
m_localFileSizeBox->setSpecialValueText(i18nc("e.g. 'Show previews for [files of any size]'", "files of any size"));
QHBoxLayout *localFileSizeBoxLayout = new QHBoxLayout();
localFileSizeBoxLayout->addWidget(localFileSizeLabel);
localFileSizeBoxLayout->addWidget(m_localFileSizeBox);
QLabel *remoteFileSizeLabel = new QLabel(i18nc("@label:spinbox", "Show previews for"), this);
m_remoteFileSizeBox = new QSpinBox(this);
m_remoteFileSizeBox->setSingleStep(1);
m_remoteFileSizeBox->setPrefix(i18nc("used as a prefix in a spinbox showing e.g. 'Show previews for [files below 3 MiB]'", "files below "));
m_remoteFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
m_remoteFileSizeBox->setSpecialValueText(i18nc("e.g. 'Show previews for [no file]'", "no file"));
QHBoxLayout *remoteFileSizeBoxLayout = new QHBoxLayout();
remoteFileSizeBoxLayout->addWidget(remoteFileSizeLabel);
remoteFileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
// Enable remote folder thumbnail option
m_enableRemoteFolderThumbnail = new QCheckBox(i18nc("@option:check", "Show previews for folders"), this);
// Make the "Enable preview for remote folder" enabled only when "Remote file limit" is superior to 0
m_enableRemoteFolderThumbnail->setEnabled(m_remoteFileSizeBox->value() > 0);
connect(m_remoteFileSizeBox, &QSpinBox::valueChanged, this, [this](int i) {
m_enableRemoteFolderThumbnail->setEnabled(i > 0);
});
const auto helpButtonInfo = xi18nc("@info",
"<para>Creating <emphasis>previews</emphasis> for remote folders is "
"very intensive in terms of network resource usage.</para>"
"<para>Disable this if navigating remote folders in Dolphin "
"is slow or when accessing storage over metered connections.</para>");
auto contextualHelpButton = new KContextualHelpButton{helpButtonInfo, m_enableRemoteFolderThumbnail, this};
QHBoxLayout *enableRemoteFolderThumbnailLayout = new QHBoxLayout();
enableRemoteFolderThumbnailLayout->addWidget(m_enableRemoteFolderThumbnail);
enableRemoteFolderThumbnailLayout->addWidget(contextualHelpButton);
QFormLayout *formLayout = new QFormLayout();
QLabel *localGroupLabel = new QLabel(i18nc("@title:group", "Local storage:"));
// Makes sure it has the same height as the labeled sizeBoxLayout
localGroupLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
formLayout->addRow(localGroupLabel, localFileSizeBoxLayout);
QLabel *remoteGroupLabel = new QLabel(i18nc("@title:group", "Remote storage:"));
remoteGroupLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
formLayout->addRow(remoteGroupLabel, remoteFileSizeBoxLayout);
formLayout->addRow(QString(), enableRemoteFolderThumbnailLayout);
topLayout->addWidget(showPreviewsLabel);
topLayout->addWidget(m_listView);
topLayout->addLayout(formLayout);
// So that m_listView takes up all available space
topLayout->setStretchFactor(m_listView, 1);
loadSettings();
connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
connect(m_localFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
connect(m_remoteFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
connect(m_enableRemoteFolderThumbnail, &QCheckBox::toggled, this, &PreviewsSettingsPage::changed);
}
PreviewsSettingsPage::~PreviewsSettingsPage()
{
}
void PreviewsSettingsPage::applySettings()
{
const QAbstractItemModel *model = m_listView->model();
const int rowCount = model->rowCount();
if (rowCount > 0) {
m_enabledPreviewPlugins.clear();
for (int i = 0; i < rowCount; ++i) {
const QModelIndex index = model->index(i, 0);
const bool checked = model->data(index, Qt::CheckStateRole).value<Qt::CheckState>() == Qt::Checked;
if (checked) {
const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
m_enabledPreviewPlugins.append(enabledPlugin);
}
}
}
KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
if (!m_localFileSizeBox->value()) {
globalConfig.deleteEntry("MaximumSize", KConfigBase::Normal | KConfigBase::Global);
} else {
const qulonglong maximumLocalSize = static_cast<qulonglong>(m_localFileSizeBox->value()) * 1024 * 1024;
globalConfig.writeEntry("MaximumSize", maximumLocalSize, KConfigBase::Normal | KConfigBase::Global);
}
const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
globalConfig.writeEntry("MaximumRemoteSize", maximumRemoteSize, KConfigBase::Normal | KConfigBase::Global);
globalConfig.writeEntry("EnableRemoteFolderThumbnail", m_enableRemoteFolderThumbnail->isChecked(), KConfigBase::Normal | KConfigBase::Global);
globalConfig.sync();
}
void PreviewsSettingsPage::restoreDefaults()
{
m_localFileSizeBox->setValue(DefaultMaxLocalPreviewSize);
m_remoteFileSizeBox->setValue(DefaultMaxRemotePreviewSize);
m_enableRemoteFolderThumbnail->setChecked(EnableRemoteFolderThumbnail);
}
void PreviewsSettingsPage::showEvent(QShowEvent *event)
{
if (!event->spontaneous() && !m_initialized) {
loadPreviewPlugins();
m_initialized = true;
}
SettingsPageBase::showEvent(event);
}
void PreviewsSettingsPage::loadPreviewPlugins()
{
QAbstractItemModel *model = m_listView->model();
const QVector<KPluginMetaData> plugins = KIO::PreviewJob::availableThumbnailerPlugins();
for (const KPluginMetaData &plugin : plugins) {
const bool show = m_enabledPreviewPlugins.contains(plugin.pluginId());
model->insertRow(0);
const QModelIndex index = model->index(0, 0);
model->setData(index, show ? Qt::Checked : Qt::Unchecked, Qt::CheckStateRole);
model->setData(index, plugin.name(), Qt::DisplayRole);
model->setData(index, plugin.pluginId(), ServiceModel::DesktopEntryNameRole);
model->setData(index, plugin.fileName(), Qt::ToolTipRole);
}
model->sort(Qt::DisplayRole);
}
void PreviewsSettingsPage::loadSettings()
{
const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
const qulonglong defaultLocalPreview = static_cast<qulonglong>(DefaultMaxLocalPreviewSize) * 1024 * 1024;
const qulonglong maxLocalByteSize = globalConfig.readEntry("MaximumSize", defaultLocalPreview);
const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
m_localFileSizeBox->setValue(maxLocalMByteSize);
const qulonglong defaultRemotePreview = static_cast<qulonglong>(DefaultMaxRemotePreviewSize) * 1024 * 1024;
const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
m_enableRemoteFolderThumbnail->setChecked(globalConfig.readEntry("EnableRemoteFolderThumbnail", EnableRemoteFolderThumbnail));
}
#include "moc_previewssettingspage.cpp"
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