File indexing completed on 2024-04-28 16:55:43

 /*
  * SPDX-FileCopyrightText: 2017-2019 Red Hat Inc
  * SPDX-FileCopyrightText: 2020-2022 Harald Sitter <sitter@kde.org>
  *
  * SPDX-License-Identifier: LGPL-2.0-or-later
  *
  * SPDX-FileCopyrightText:  2017-2019 Jan Grulich <jgrulich@redhat.com>
  */
 
 #include "appchooserdialog.h"
 #include "appchooser_debug.h"
 
 #include <QQmlContext>
 #include <QQmlEngine>
 #include <QQuickItem>
 #include <QQuickWidget>
 
 #include <QApplication>
 #include <QDir>
 #include <QMimeDatabase>
 #include <QSettings>
 #include <QStandardPaths>
 
 #include <KApplicationTrader>
 #include <KIO/MimeTypeFinderJob>
 #include <KLocalizedString>
 #include <KProcess>
 #include <KService>
 #include <algorithm>
 #include <iterator>
 #include <KBuildSycocaProgressDialog>
 #include <kapplicationtrader.h>
 
 AppChooserDialog::AppChooserDialog(const QStringList &choices, const QString &defaultApp, const QString &fileName, const QString &mimeName, QObject *parent)
     : QuickDialog(parent)
     , m_model(new AppModel(this))
     , m_appChooserData(new AppChooserData(this))
 {
     QVariantMap props = {
         {"title", i18nc("@title:window", "Choose Application")},
         // fileName is actually the full path, confusingly enough. But showing the
         // whole thing is overkill; let's just show the user the file itself
         {"mainText", xi18nc("@info", "Choose an application to open <filename>%1</filename>", QUrl::fromLocalFile(fileName).fileName())},
     };
 
     AppFilterModel *filterModel = new AppFilterModel(this);
     filterModel->setSourceModel(m_model);
 
     m_appChooserData->setFileName(fileName);
     m_appChooserData->setDefaultApp(defaultApp);
     filterModel->setDefaultApp(defaultApp);
 
     auto findDefaultApp = [this, defaultApp, filterModel]() {
         if (!defaultApp.isEmpty()) {
             return;
         }
         KService::Ptr defaultService = KApplicationTrader::preferredService(m_appChooserData->mimeName());
         if (defaultService && defaultService->isValid()) {
             QString id = defaultService->desktopEntryName();
             m_appChooserData->setDefaultApp(id);
             filterModel->setDefaultApp(id);
         }
     };
 
     auto findPreferredApps = [this, choices]() {
         if (!choices.isEmpty()) {
             m_model->setPreferredApps(choices);
             return;
         }
         QStringList choices;
         const KService::List appServices = KApplicationTrader::queryByMimeType(m_appChooserData->mimeName(), [](const KService::Ptr &service) -> bool {
             return service->isValid();
         });
         std::transform(appServices.begin(), appServices.end(), std::back_inserter(choices), [](const KService::Ptr &service) {
             return service ? service->desktopEntryName() : QString();
         });
         m_model->setPreferredApps(choices);
     };
 
     if (mimeName.isEmpty()) {
         auto job = new KIO::MimeTypeFinderJob(QUrl::fromUserInput(fileName));
         job->setAuthenticationPromptEnabled(false);
         connect(job, &KIO::MimeTypeFinderJob::result, this, [this, job, findDefaultApp, findPreferredApps]() {
             if (job->error() == KJob::NoError) {
                 m_appChooserData->setMimeName(job->mimeType());
                 findDefaultApp();
                 findPreferredApps();
             } else {
                 qCWarning(XdgDesktopPortalKdeAppChooser) << "couldn't get mimetype:" << job->errorString();
             }
         });
         job->start();
     } else {
         m_appChooserData->setMimeName(mimeName);
         findDefaultApp();
         findPreferredApps();
     }
 
     qmlRegisterSingletonInstance<AppFilterModel>("org.kde.xdgdesktopportal", 1, 0, "AppModel", filterModel);
     qmlRegisterSingletonInstance<AppChooserData>("org.kde.xdgdesktopportal", 1, 0, "AppChooserData", m_appChooserData);
 
     create(QStringLiteral("qrc:/AppChooserDialog.qml"), props);
 
     connect(m_appChooserData, &AppChooserData::openDiscover, this, &AppChooserDialog::onOpenDiscover);
     connect(m_appChooserData, &AppChooserData::applicationSelected, this, &AppChooserDialog::onApplicationSelected);
 }
 
 QString AppChooserDialog::selectedApplication() const
 {
     return m_selectedApplication;
 }
 
 void AppChooserDialog::onApplicationSelected(const QString &desktopFile, const bool remember)
 {
     m_selectedApplication = desktopFile;
 
     if (remember && !m_appChooserData->mimeName().isEmpty()) {
         KService::Ptr serv = KService::serviceByDesktopName(desktopFile);
         KApplicationTrader::setPreferredService(m_appChooserData->mimeName(), serv);
         // kbuildsycoca is the one reading mimeapps.list, so we need to run it now
         KBuildSycocaProgressDialog::rebuildKSycoca(QApplication::activeWindow());
     }
 
     accept();
 }
 
 void AppChooserDialog::onOpenDiscover()
 {
     QStringList args;
     if (!m_appChooserData->mimeName().isEmpty()) {
         args << QStringLiteral("--mime") << m_appChooserData->mimeName();
     }
     KProcess::startDetached(QStringLiteral("plasma-discover"), args);
 }
 
 void AppChooserDialog::updateChoices(const QStringList &choices)
 {
     m_model->setPreferredApps(choices);
 }
 
 ApplicationItem::ApplicationItem(const QString &name, const QString &icon, const QString &desktopFileName)
     : m_applicationName(name)
     , m_applicationIcon(icon)
     , m_applicationDesktopFile(desktopFileName)
     , m_applicationCategory(AllApplications)
 {
 }
 
 QString ApplicationItem::applicationName() const
 {
     return m_applicationName;
 }
 
 QString ApplicationItem::applicationIcon() const
 {
     return m_applicationIcon;
 }
 
 QString ApplicationItem::applicationDesktopFile() const
 {
     return m_applicationDesktopFile;
 }
 
 void ApplicationItem::setApplicationCategory(ApplicationItem::ApplicationCategory category)
 {
     m_applicationCategory = category;
 }
 
 ApplicationItem::ApplicationCategory ApplicationItem::applicationCategory() const
 {
     return m_applicationCategory;
 }
 
 bool ApplicationItem::operator==(const ApplicationItem &item) const
 {
     return item.applicationDesktopFile() == applicationDesktopFile();
 }
 
 AppFilterModel::AppFilterModel(QObject *parent)
     : QSortFilterProxyModel(parent)
 {
     setDynamicSortFilter(true);
     setFilterCaseSensitivity(Qt::CaseInsensitive);
     sort(0, Qt::DescendingOrder);
 }
 
 AppFilterModel::~AppFilterModel()
 {
 }
 
 void AppFilterModel::setShowOnlyPrefferedApps(bool show)
 {
     m_showOnlyPreferredApps = show;
 
     invalidate();
 }
 
 bool AppFilterModel::showOnlyPreferredApps() const
 {
     return m_showOnlyPreferredApps;
 }
 
 void AppFilterModel::setDefaultApp(const QString &defaultApp)
 {
     m_defaultApp = defaultApp;
 
     invalidate();
 }
 
 QString AppFilterModel::defaultApp() const
 {
     return m_defaultApp;
 }
 
 void AppFilterModel::setFilter(const QString &text)
 {
     m_filter = text;
 
     if (!m_filter.isEmpty() && m_showOnlyPreferredApps) {
         m_showOnlyPreferredApps = false;
         emit showOnlyPreferredAppsChanged();
     }
 
     invalidate();
 }
 
 QString AppFilterModel::filter() const
 {
     return m_filter;
 }
 
 bool AppFilterModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
 {
     const QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
 
     ApplicationItem::ApplicationCategory category =
         static_cast<ApplicationItem::ApplicationCategory>(sourceModel()->data(index, AppModel::ApplicationCategoryRole).toInt());
     QString appName = sourceModel()->data(index, AppModel::ApplicationNameRole).toString();
 
     if (m_filter.isEmpty()) {
         return m_showOnlyPreferredApps ? category == ApplicationItem::PreferredApplication : true;
     }
 
     return m_showOnlyPreferredApps ? category == ApplicationItem::PreferredApplication && appName.contains(m_filter, Qt::CaseInsensitive)
                                    : appName.contains(m_filter, Qt::CaseInsensitive);
 }
 
 bool AppFilterModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
 {
     if (sourceModel()->data(left, AppModel::ApplicationDesktopFileRole) == m_defaultApp) {
         return false;
     }
     if (sourceModel()->data(right, AppModel::ApplicationDesktopFileRole) == m_defaultApp) {
         return true;
     }
     ApplicationItem::ApplicationCategory leftCategory =
         static_cast<ApplicationItem::ApplicationCategory>(sourceModel()->data(left, AppModel::ApplicationCategoryRole).toInt());
     ApplicationItem::ApplicationCategory rightCategory =
         static_cast<ApplicationItem::ApplicationCategory>(sourceModel()->data(right, AppModel::ApplicationCategoryRole).toInt());
     QString leftName = sourceModel()->data(left, AppModel::ApplicationNameRole).toString();
     QString rightName = sourceModel()->data(right, AppModel::ApplicationNameRole).toString();
 
     if (leftCategory < rightCategory) {
         return false;
     } else if (leftCategory > rightCategory) {
         return true;
     }
 
     return QString::localeAwareCompare(leftName, rightName) > 0;
 }
 
 QString AppChooserData::defaultApp() const
 {
     return m_defaultApp;
 }
 
 void AppChooserData::setDefaultApp(const QString &defaultApp)
 {
     m_defaultApp = defaultApp;
     Q_EMIT defaultAppChanged();
 }
 
 AppChooserData::AppChooserData(QObject *parent)
     : QObject(parent)
 {
 }
 
 QString AppChooserData::fileName() const
 {
     return m_fileName;
 }
 
 void AppChooserData::setFileName(const QString &fileName)
 {
     m_fileName = fileName;
     Q_EMIT fileNameChanged();
 }
 
 QString AppChooserData::mimeName() const
 {
     return m_mimeName;
 }
 
 void AppChooserData::setMimeName(const QString &mimeName)
 {
     if (m_mimeName != mimeName) {
         m_mimeName = mimeName;
         Q_EMIT mimeNameChanged();
         Q_EMIT mimeDescChanged();
     }
 }
 
 QString AppChooserData::mimeDesc() const
 {
     return QMimeDatabase().mimeTypeForName(m_mimeName).comment();
 }
 
 AppModel::AppModel(QObject *parent)
     : QAbstractListModel(parent)
 {
     loadApplications();
 }
 
 AppModel::~AppModel()
 {
 }
 
 void AppModel::setPreferredApps(const QStringList &possiblyAliasedList)
 {
     m_hasPreferredApps = false;
     Q_EMIT hasPreferredAppsChanged();
 
     // In the event that we get incoming NoDisplay entries that are AliasFor another desktop file,
     // switch the NoDisplay name for the aliased name.
     QStringList list;
     for (const auto &entry : possiblyAliasedList) {
         if (const auto value = m_noDisplayAliasesFor.value(entry); !value.isEmpty()) {
             list << value;
         } else {
             list << entry;
         }
     }
 
     for (ApplicationItem &item : m_list) {
         bool changed = false;
 
         // First reset to initial type
         if (item.applicationCategory() != ApplicationItem::AllApplications) {
             item.setApplicationCategory(ApplicationItem::AllApplications);
             changed = true;
         }
 
         if (list.contains(item.applicationDesktopFile())) {
             item.setApplicationCategory(ApplicationItem::PreferredApplication);
             changed = true;
             m_hasPreferredApps = true;
             Q_EMIT hasPreferredAppsChanged();
         }
 
         if (changed) {
             const int row = m_list.indexOf(item);
             if (row >= 0) {
                 QModelIndex index = createIndex(row, 0, AppModel::ApplicationCategoryRole);
                 Q_EMIT dataChanged(index, index);
             }
         }
     }
 }
 
 QVariant AppModel::data(const QModelIndex &index, int role) const
 {
     const int row = index.row();
 
     if (row >= 0 && row < m_list.count()) {
         ApplicationItem item = m_list.at(row);
 
         switch (role) {
         case ApplicationNameRole:
             return item.applicationName();
         case ApplicationIconRole:
             return item.applicationIcon();
         case ApplicationDesktopFileRole:
             return item.applicationDesktopFile();
         case ApplicationCategoryRole:
             return static_cast<int>(item.applicationCategory());
         default:
             break;
         }
     }
 
     return QVariant();
 }
 
 int AppModel::rowCount(const QModelIndex &parent) const
 {
     return parent.isValid() ? 0 : m_list.count();
 }
 
 QHash<int, QByteArray> AppModel::roleNames() const
 {
     return {
         {ApplicationNameRole, QByteArrayLiteral("applicationName")},
         {ApplicationIconRole, QByteArrayLiteral("applicationIcon")},
         {ApplicationDesktopFileRole, QByteArrayLiteral("applicationDesktopFile")},
         {ApplicationCategoryRole, QByteArrayLiteral("applicationCategory")},
     };
 }
 
 void AppModel::loadApplications()
 {
     const KService::List appServices = KApplicationTrader::query([](const KService::Ptr &service) -> bool {
         return service->isValid();
     });
     for (const KService::Ptr &service : appServices) {
         if (service->noDisplay()) {
             if (const auto alias = service->aliasFor(); !alias.isEmpty()) {
                 m_noDisplayAliasesFor.insert(service->desktopEntryName(), service->aliasFor());
             }
             continue; // no display after all
         }
 
         const QString fullName = service->property(QStringLiteral("X-GNOME-FullName"), QMetaType::QString).toString();
         const QString name = fullName.isEmpty() ? service->name() : fullName;
         ApplicationItem appItem(name, service->icon(), service->desktopEntryName());
 
         if (!m_list.contains(appItem)) {
             m_list.append(appItem);
         }
     }
 }