File indexing completed on 2023-12-03 07:47:10

 /*
     SPDX-FileCopyrightText: 2015 Gregor Mi <codestruct@posteo.org>
 
     SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
 #ifndef KMORETOOLS_P_H
 #define KMORETOOLS_P_H
 
 #include "kmoretools.h"
 
 #include <QDebug>
 #include <QDir>
 #include <QJsonArray>
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QRegularExpression>
 #include <QUrl>
 
 #include <KIO/OpenUrlJob>
 #include <KLocalizedString>
 
 #define _ QStringLiteral
 
 /**
  * Makes sure that if the same inputId is given more than once
  * we will get unique IDs.
  *
  * See KMoreToolsTest::testMenuItemIdGen().
  */
 class KmtMenuItemIdGen
 {
 public:
     QString getId(const QString &inputId)
     {
         int postFix = desktopEntryNameUsageMap[inputId];
         desktopEntryNameUsageMap[inputId] = postFix + 1;
         return QStringLiteral("%1%2").arg(inputId).arg(postFix);
     }
 
     void reset()
     {
         desktopEntryNameUsageMap.clear();
     }
 
 private:
     QMap<QString, int> desktopEntryNameUsageMap;
 };
 
 /**
  * A serializeable menu item
  */
 class KmtMenuItemDto
 {
 public:
     QString id;
 
     /**
      * @note that is might contain an ampersand (&) which may be used for menu items.
      * Remove it with removeMenuAmpersand()
      */
     QString text;
 
     QIcon icon;
 
     KMoreTools::MenuSection menuSection;
 
     bool isInstalled = true;
 
     /**
      * only used if isInstalled == false
      */
     QUrl homepageUrl;
 
     QString appstreamId;
 
 public:
     void jsonRead(const QJsonObject &json)
     {
         id = json[_("id")].toString();
         menuSection = json[_("menuSection")].toString() == _("main") ? KMoreTools::MenuSection_Main : KMoreTools::MenuSection_More;
         isInstalled = json[_("isInstalled")].toBool();
     }
 
     void jsonWrite(QJsonObject &json) const
     {
         json[_("id")] = id;
         json[_("menuSection")] = menuSection == KMoreTools::MenuSection_Main ? _("main") : _("more");
         json[_("isInstalled")] = isInstalled;
     }
 
     bool operator==(const KmtMenuItemDto rhs) const
     {
         return this->id == rhs.id;
     }
 
     /**
      * todo: is there a QT method that can be used instead of this?
      */
     static QString removeMenuAmpersand(const QString &str)
     {
         QString newStr = str;
         newStr.replace(QRegularExpression(QStringLiteral("\\&([^&])")), QStringLiteral("\\1")); // &Hallo --> Hallo
         newStr.replace(_("&&"), _("&")); // &&Hallo --> &Hallo
         return newStr;
     }
 };
 
 /**
  * The serializeable menu structure.
  * Used for working with user interaction for persisted configuration.
  */
 class KmtMenuStructureDto
 {
 public:
     QList<KmtMenuItemDto> list;
 
 public: // should be private but we would like to unit test
     /**
      * NOT USED
      */
     QList<const KmtMenuItemDto *> itemsBySection(KMoreTools::MenuSection menuSection) const
     {
         QList<const KmtMenuItemDto *> r;
 
         for (const auto &item : std::as_const(list)) {
             if (item.menuSection == menuSection) {
                 r.append(&item);
             }
         }
 
         return r;
     }
 
     /**
      * don't store the returned pointer, but you can deref it which calls copy ctor
      */
     const KmtMenuItemDto *findInstalled(const QString &id) const
     {
         auto foundItem = std::find_if(list.begin(), list.end(), [id](const KmtMenuItemDto &item) {
             return item.id == id && item.isInstalled;
         });
         if (foundItem != list.end()) {
             // deref iterator which is a const MenuItemDto& from which we get the pointer
             // (todo: is this a good idea?)
             return &(*foundItem);
         }
 
         return nullptr;
     }
 
 public:
     QString serialize() const
     {
         QJsonObject jObj;
         jsonWrite(jObj);
         QJsonDocument doc(jObj);
         auto jByteArray = doc.toJson(QJsonDocument::Compact);
         return QString::fromUtf8(jByteArray);
     }
 
     void deserialize(const QString &text)
     {
         QJsonParseError parseError;
         QJsonDocument doc(QJsonDocument::fromJson(text.toUtf8(), &parseError));
         jsonRead(doc.object());
     }
 
     void jsonRead(const QJsonObject &json)
     {
         list.clear();
         auto jArr = json[_("menuitemlist")].toArray();
         for (int i = 0; i < jArr.size(); ++i) {
             auto jObj = jArr[i].toObject();
             KmtMenuItemDto item;
             item.jsonRead(jObj);
             list.append(item);
         }
     }
 
     void jsonWrite(QJsonObject &json) const
     {
         QJsonArray jArr;
         for (const auto &item : std::as_const(list)) {
             QJsonObject jObj;
             item.jsonWrite(jObj);
             jArr.append(jObj);
         }
         json[_("menuitemlist")] = jArr;
     }
 
     /**
      * @returns true if there are any not-installed items
      */
     std::vector<KmtMenuItemDto> notInstalledServices() const
     {
         std::vector<KmtMenuItemDto> target;
         std::copy_if(list.begin(), list.end(), std::back_inserter(target), [](const KmtMenuItemDto &item) {
             return !item.isInstalled;
         });
         return target;
     }
 
 public: // should be private but we would like to unit test
     /**
      * stable sorts:
      * 1. main items
      * 2. more items
      * 3. not installed items
      */
     void stableSortListBySection()
     {
         std::stable_sort(list.begin(), list.end(), [](const KmtMenuItemDto &i1, const KmtMenuItemDto &i2) {
             return (i1.isInstalled && i1.menuSection == KMoreTools::MenuSection_Main && i2.isInstalled && i2.menuSection == KMoreTools::MenuSection_More)
                 || (i1.isInstalled && !i2.isInstalled);
         });
     }
 
 public:
     /**
      * moves an item up or down respecting its category
      * @param direction: 1: down, -1: up
      */
     void moveWithinSection(const QString &id, int direction)
     {
         auto selItem = std::find_if(list.begin(), list.end(), [id](const KmtMenuItemDto &item) {
             return item.id == id;
         });
 
         if (selItem != list.end()) { // if found
             if (direction == 1) { // "down"
                 auto itemAfter = std::find_if(selItem + 1,
                                               list.end(), // find item where to insert after in the same category
                                               [selItem](const KmtMenuItemDto &item) {
                                                   return item.menuSection == selItem->menuSection;
                                               });
 
                 if (itemAfter != list.end()) {
                     int prevIndex = list.indexOf(*selItem);
                     list.insert(list.indexOf(*itemAfter) + 1, *selItem);
                     list.removeAt(prevIndex);
                 }
             } else if (direction == -1) { // "up"
                 // auto r_list = list;
                 // std::reverse(r_list.begin(), r_list.end()); // we need to search "up"
                 // auto itemBefore = std::find_if(selItem, list.begin(),// find item where to insert before in the same category
                 //                               [selItem](const MenuItemDto& item) { return item.menuSection == selItem->menuSection; });
 
                 // todo: can't std::find_if be used instead of this loop?
                 QList<KmtMenuItemDto>::iterator itemBefore = list.end();
                 auto it = selItem;
                 while (it != list.begin()) {
                     --it;
                     if (it->menuSection == selItem->menuSection) {
                         itemBefore = it;
                         break;
                     }
                 }
 
                 if (itemBefore != list.end()) {
                     int prevIndex = list.indexOf(*selItem);
                     list.insert(itemBefore, *selItem);
                     list.removeAt(prevIndex + 1);
                 }
             } else {
                 Q_ASSERT(false);
             }
         } else {
             qWarning() << "selItem != list.end() == false";
         }
 
         stableSortListBySection();
     }
 
     void moveToOtherSection(const QString &id)
     {
         auto selItem = std::find_if(list.begin(), list.end(), [id](const KmtMenuItemDto &item) -> bool {
             return item.id == id;
         });
 
         if (selItem != list.end()) { // if found
             if (selItem->menuSection == KMoreTools::MenuSection_Main) {
                 selItem->menuSection = KMoreTools::MenuSection_More;
             } else if (selItem->menuSection == KMoreTools::MenuSection_More) {
                 selItem->menuSection = KMoreTools::MenuSection_Main;
             } else {
                 Q_ASSERT(false);
             }
         }
 
         stableSortListBySection();
     }
 };
 
 /**
  * In menu structure consisting of main section items, more section items
  * and registered services which are not installed.
  * In contrast to KmtMenuStructureDto we are dealing here with
  * KMoreToolsMenuItem pointers instead of DTOs.
  */
 class KmtMenuStructure
 {
 public:
     QList<KMoreToolsMenuItem *> mainItems;
     QList<KMoreToolsMenuItem *> moreItems;
 
     /**
      * contains each not installed registered service once
      */
     QList<KMoreToolsService *> notInstalledServices;
 
 public:
     KmtMenuStructureDto toDto()
     {
         KmtMenuStructureDto result;
 
         for (auto item : std::as_const(mainItems)) {
             const auto a = item->action();
             KmtMenuItemDto dto;
             dto.id = item->id();
             dto.text = a->text(); // might be overridden, so we use directly from QAction
             dto.icon = a->icon();
             dto.isInstalled = true;
             dto.menuSection = KMoreTools::MenuSection_Main;
             result.list << dto;
         }
 
         for (auto item : std::as_const(moreItems)) {
             const auto a = item->action();
             KmtMenuItemDto dto;
             dto.id = item->id();
             dto.text = a->text(); // might be overridden, so we use directly from QAction
             dto.icon = a->icon();
             dto.isInstalled = true;
             dto.menuSection = KMoreTools::MenuSection_More;
             result.list << dto;
         }
 
         for (auto registeredService : std::as_const(notInstalledServices)) {
             KmtMenuItemDto dto;
             // dto.id = item->id(); // not used in this case
             dto.text = registeredService->formatString(_("$Name"));
             dto.icon = registeredService->icon();
             dto.isInstalled = false;
             // dto.menuSection = // not used in this case
             dto.homepageUrl = registeredService->homepageUrl();
             result.list << dto;
         }
 
         return result;
     }
 };
 
 /**
  * Helper class that deals with creating the menu where all the not-installed
  * services are listed.
  */
 class KmtNotInstalledUtil
 {
 public:
     /**
      * For one given application/service which is named @p title a QMenu is
      * created with the given @p icon and @p homepageUrl.
      * It will be used as submenu for the menu that displays the not-installed
      * services.
      */
     static QMenu *createSubmenuForNotInstalledApp(const QString &title, QWidget *parent, const QIcon &icon, const QUrl &homepageUrl, const QString &appstreamId)
     {
         QMenu *submenuForNotInstalled = new QMenu(title, parent);
         submenuForNotInstalled->setIcon(icon);
 
         if (homepageUrl.isValid()) {
             auto websiteAction = submenuForNotInstalled->addAction(i18nc("@action:inmenu", "Visit homepage"));
             websiteAction->setIcon(QIcon::fromTheme(QStringLiteral("internet-services")));
             auto url = homepageUrl;
             // todo/review: is it ok to have sender and receiver the same object?
             QObject::connect(websiteAction, &QAction::triggered, websiteAction, [url](bool) {
                 auto *job = new KIO::OpenUrlJob(url);
                 job->start();
             });
         }
 
         QUrl appstreamUrl = QUrl(QStringLiteral("appstream://") % appstreamId);
 
         if (!appstreamId.isEmpty()) {
             auto installAction = submenuForNotInstalled->addAction(i18nc("@action:inmenu", "Install"));
             installAction->setIcon(QIcon::fromTheme(QStringLiteral("download")));
             QObject::connect(installAction, &QAction::triggered, installAction, [appstreamUrl](bool) {
                 auto *job = new KIO::OpenUrlJob(appstreamUrl);
                 job->start();
             });
         }
 
         if (!homepageUrl.isValid() && appstreamId.isEmpty()) {
             submenuForNotInstalled->addAction(i18nc("@action:inmenu", "No further information available."))->setEnabled(false);
         }
 
         return submenuForNotInstalled;
     }
 };
 
 /**
  * Url handling utils
  */
 class KmtUrlUtil
 {
 public:
     /**
      * "file:///home/abc/hallo.txt" becomes "file:///home/abc"
      */
     static QUrl localFileAbsoluteDir(const QUrl &url)
     {
         if (!url.isLocalFile()) {
             qWarning() << "localFileAbsoluteDir: url must be local file";
         }
         QFileInfo fileInfo(url.toLocalFile());
         auto dir = QDir(fileInfo.absoluteDir()).absolutePath();
         return QUrl::fromLocalFile(dir);
     }
 };
 
 #endif