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Diffstat (limited to 'src/assistant/assistant/helpdocsettings.cpp')
| -rw-r--r-- | src/assistant/assistant/helpdocsettings.cpp | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/assistant/assistant/helpdocsettings.cpp b/src/assistant/assistant/helpdocsettings.cpp new file mode 100644 index 000000000..dc4afdb86 --- /dev/null +++ b/src/assistant/assistant/helpdocsettings.cpp @@ -0,0 +1,231 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt Assistant of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "helpdocsettings.h" + +#include <QtHelp/QCompressedHelpInfo> +#include <QtHelp/QHelpEngineCore> +#include <QtHelp/QHelpFilterEngine> + +#include <QtCore/QVersionNumber> + +#include <QtDebug> + +QT_BEGIN_NAMESPACE + +class HelpDocSettingsPrivate : public QSharedData +{ +public: + HelpDocSettingsPrivate() = default; + HelpDocSettingsPrivate(const HelpDocSettingsPrivate &other) = default; + ~HelpDocSettingsPrivate() = default; + + QMap<QString, QString> m_namespaceToComponent; + QMap<QString, QStringList> m_componentToNamespace; + + QMap<QString, QVersionNumber> m_namespaceToVersion; + QMap<QVersionNumber, QStringList> m_versionToNamespace; + + QMap<QString, QString> m_namespaceToFileName; + QMap<QString, QString> m_fileNameToNamespace; +}; + + +HelpDocSettings::HelpDocSettings() + : d(new HelpDocSettingsPrivate) +{ +} + +HelpDocSettings::HelpDocSettings(const HelpDocSettings &) = default; + +HelpDocSettings::HelpDocSettings(HelpDocSettings &&) = default; + +HelpDocSettings::~HelpDocSettings() = default; + +HelpDocSettings &HelpDocSettings::operator=(const HelpDocSettings &) = default; + +HelpDocSettings &HelpDocSettings::operator=(HelpDocSettings &&) = default; + +bool HelpDocSettings::addDocumentation(const QString &fileName) +{ + const QCompressedHelpInfo info = QCompressedHelpInfo::fromCompressedHelpFile(fileName); + + if (info.isNull()) + return false; + + const QString namespaceName = info.namespaceName(); + + if (d->m_namespaceToFileName.contains(namespaceName)) + return false; + + if (d->m_fileNameToNamespace.contains(fileName)) + return false; + + const QString component = info.component(); + const QVersionNumber version = info.version(); + + d->m_namespaceToFileName.insert(namespaceName, fileName); + d->m_fileNameToNamespace.insert(fileName, namespaceName); + + d->m_namespaceToComponent.insert(namespaceName, component); + d->m_componentToNamespace[component].append(namespaceName); + + d->m_namespaceToVersion.insert(namespaceName, version); + d->m_versionToNamespace[version].append(namespaceName); + + return true; +} + +bool HelpDocSettings::removeDocumentation(const QString &namespaceName) +{ + if (namespaceName.isEmpty()) + return false; + + const QString fileName = d->m_namespaceToFileName.value(namespaceName); + if (fileName.isEmpty()) + return false; + + const QString component = d->m_namespaceToComponent.value(namespaceName); + const QVersionNumber version = d->m_namespaceToVersion.value(namespaceName); + + d->m_namespaceToComponent.remove(namespaceName); + d->m_namespaceToVersion.remove(namespaceName); + d->m_namespaceToFileName.remove(namespaceName); + d->m_fileNameToNamespace.remove(fileName); + d->m_componentToNamespace[component].removeOne(namespaceName); + if (d->m_componentToNamespace[component].isEmpty()) + d->m_componentToNamespace.remove(component); + d->m_versionToNamespace[version].removeOne(namespaceName); + if (d->m_versionToNamespace[version].isEmpty()) + d->m_versionToNamespace.remove(version); + + return true; +} + +QString HelpDocSettings::namespaceName(const QString &fileName) const +{ + return d->m_fileNameToNamespace.value(fileName); +} + +QStringList HelpDocSettings::components() const +{ + return d->m_componentToNamespace.keys(); +} + +QList<QVersionNumber> HelpDocSettings::versions() const +{ + return d->m_versionToNamespace.keys(); +} + +QStringList HelpDocSettings::namespaces() const +{ + return d->m_namespaceToFileName.keys(); +} + +QMap<QString, QString> HelpDocSettings::namespaceToFileName() const +{ + return d->m_namespaceToFileName; +} + +HelpDocSettings HelpDocSettings::readSettings(QHelpEngineCore *helpEngine) +{ + QHelpFilterEngine *filterEngine = helpEngine->filterEngine(); + + HelpDocSettings docSettings; + docSettings.d->m_namespaceToComponent = filterEngine->namespaceToComponent(); + docSettings.d->m_namespaceToVersion = filterEngine->namespaceToVersion(); + for (auto it = docSettings.d->m_namespaceToComponent.constBegin(); + it != docSettings.d->m_namespaceToComponent.constEnd(); ++it) { + const QString namespaceName = it.key(); + const QString namespaceFileName = helpEngine->documentationFileName(namespaceName); + docSettings.d->m_namespaceToFileName.insert(namespaceName, namespaceFileName); + docSettings.d->m_fileNameToNamespace.insert(namespaceFileName, namespaceName); + docSettings.d->m_componentToNamespace[it.value()].append(namespaceName); + } + for (auto it = docSettings.d->m_namespaceToVersion.constBegin(); + it != docSettings.d->m_namespaceToVersion.constEnd(); ++it) { + docSettings.d->m_versionToNamespace[it.value()].append(it.key()); + } + + return docSettings; +} + +static QMap<QString, QString> subtract(const QMap<QString, QString> &minuend, + const QMap<QString, QString> &subtrahend) +{ + auto result = minuend; + + for (auto itSubtrahend = subtrahend.cbegin(); itSubtrahend != subtrahend.cend(); ++itSubtrahend) { + auto itResult = result.find(itSubtrahend.key()); + if (itResult != result.end() && itSubtrahend.value() == itResult.value()) + result.erase(itResult); + } + + return result; +} + +bool HelpDocSettings::applySettings(QHelpEngineCore *helpEngine, + const HelpDocSettings &settings) +{ + const HelpDocSettings oldSettings = readSettings(helpEngine); + + const QMap<QString, QString> docsToRemove = subtract( + oldSettings.namespaceToFileName(), + settings.namespaceToFileName()); + const QMap<QString, QString> docsToAdd = subtract( + settings.namespaceToFileName(), + oldSettings.namespaceToFileName()); + + bool changed = false; + for (const QString &namespaceName : docsToRemove.keys()) { + if (!helpEngine->unregisterDocumentation(namespaceName)) + qWarning() << "Cannot unregister documentation:" << namespaceName; + changed = true; + } + + for (const QString &fileName : docsToAdd.values()) { + if (!helpEngine->registerDocumentation(fileName)) + qWarning() << "Cannot register documentation file:" << fileName; + changed = true; + } + + return changed; +} + +QT_END_NAMESPACE |