konqhtml/cache/cache.cpp

0001 /*
0002     This file is part of the KDE project.
0003
0004     SPDX-FileCopyrightText: 2020 Stefano Crocco <stefano.crocco@alice.it>
0005
0006     SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
0007 */
0008
0009 #include "cache.h"
0010 #include "ui_cache.h"
0011
0012 #include <KConfigGroup>
0013
0014 #include <QDBusMessage>
0015 #include <QDBusConnection>
0016
0017 int constexpr conversionFactor = 1000000;
0018
0019 Cache::Cache(QObject *parent, const KPluginMetaData &md, const QVariantList &): KCModule(parent, md),
0020     m_ui(new Ui::Cache),
0021     m_config(KSharedConfig::openConfig(QString(), KConfig::NoGlobals))
0022 {
0023     m_ui->setupUi(widget());
0024     connect(m_ui->memoryCache, &QCheckBox::toggled, this, &Cache::toggleMemoryCache);
0025     connect(m_ui->cacheSize, QOverload<int>::of(&QSpinBox::valueChanged), this, [this](int){markAsChanged();});
0026     auto changedBoolArg = [this](bool){markAsChanged();};
0027     connect(m_ui->memoryCache, &QCheckBox::clicked, this, changedBoolArg);
0028     connect(m_ui->cacheEnabled, &QGroupBox::clicked, this, changedBoolArg);
0029     connect(m_ui->useCustomCacheDir, &QGroupBox::clicked, this, changedBoolArg);
0030     connect(m_ui->customCacheDir, &KUrlRequester::textChanged, this, [this](const QString &){markAsChanged();});
0031 }
0032
0033 Cache::~Cache()
0034 {
0035 }
0036
0037 void Cache::defaults()
0038 {
0039     m_ui->cacheEnabled->setChecked(true);
0040     m_ui->memoryCache->setChecked(false);
0041     m_ui->cacheSize->setValue(0);
0042     m_ui->useCustomCacheDir->setChecked(false);
0043     m_ui->customCacheDir->setUrl(QUrl());
0044     setNeedsSave(true);
0045
0046 #if QT_VERSION_MAJOR > 5
0047     setRepresentsDefaults(true);
0048 #endif
0049 }
0050
0051 void Cache::load()
0052 {
0053     KConfigGroup grp = m_config->group("Cache");
0054     m_ui->cacheEnabled->setChecked(grp.readEntry("CacheEnabled", true));
0055     m_ui->memoryCache->setChecked(grp.readEntry("MemoryCache", false));
0056     int maxSizeInBytes = grp.readEntry("MaximumCacheSize", 0);
0057     //Ensure that maxSizeInMB is greater than 0 if maxSizeInBytes is not 0
0058     int maxSizeInMB = maxSizeInBytes == 0 ? 0 : std::max(1, maxSizeInBytes / conversionFactor);
0059     m_ui->cacheSize->setValue(maxSizeInMB);
0060     QString path = grp.readEntry("CustomCacheDir", QString());
0061     m_ui->useCustomCacheDir->setChecked(!path.isEmpty());
0062     m_ui->customCacheDir->setUrl(QUrl::fromLocalFile(path));
0063     KCModule::load();
0064 }
0065
0066 void Cache::save()
0067 {
0068     KConfigGroup grp = m_config->group("Cache");
0069     bool cacheEnabled = m_ui->cacheEnabled->isChecked();
0070     grp.writeEntry("CacheEnabled", cacheEnabled);
0071     grp.writeEntry("MemoryCache", m_ui->memoryCache->isChecked());
0072     //We store the size in bytes, not in MB
0073     grp.writeEntry("MaximumCacheSize", m_ui->cacheSize->value()*conversionFactor);
0074     QString path = m_ui->customCacheDir->isEnabled() ? m_ui->customCacheDir->url().path() : QString();
0075     grp.writeEntry("CustomCacheDir", path);
0076     m_config->sync();
0077
0078     QDBusMessage message =
0079         QDBusMessage::createSignal(QStringLiteral("/KonqMain"), QStringLiteral("org.kde.Konqueror.Main"), QStringLiteral("reparseConfiguration"));
0080     QDBusConnection::sessionBus().send(message);
0081     KCModule::save();
0082 }
0083
0084 void Cache::toggleMemoryCache(bool on)
0085 {
0086     m_ui->useCustomCacheDir->setEnabled(!on);
0087 }