homescreens/halcyon: Add folder backend

containments/homescreens/halcyon/application.h

@@ -15,6 +15,9 @@
 #include <KWayland/Client/registry.h>
 #include <KWayland/Client/surface.h>
 
+/**
+ * @short Object that represents an application.
+ */
 class Application : public QObject
 {
     Q_OBJECT

containments/homescreens/halcyon/applicationfolder.cpp

@@ -5,7 +5,9 @@
 
 #include <QJsonArray>
 
-ApplicationFolder::ApplicationFolder(QObject *parent)
+ApplicationFolder::ApplicationFolder(QObject *parent, QString name)
+    : QObject{parent}
+    , m_name{name}
 {
 }
 
@@ -19,8 +21,7 @@ ApplicationFolder *ApplicationFolder::fromJson(QJsonObject &obj, QObject *parent
         }
     }
 
-    ApplicationFolder *folder = new ApplicationFolder(parent);
+    ApplicationFolder *folder = new ApplicationFolder(parent, name);
-    folder->setName(name);
     folder->setApplications(apps);
     return folder;
 }
@@ -50,6 +51,7 @@ void ApplicationFolder::setName(QString &name)
 {
     m_name = name;
     Q_EMIT nameChanged();
+    Q_EMIT saveRequested();
 }
 
 QList<Application *> ApplicationFolder::applications()
@@ -61,4 +63,31 @@ void ApplicationFolder::setApplications(QList<Application *> applications)
 {
     m_applications = applications;
     Q_EMIT applicationsChanged();
+    Q_EMIT saveRequested();
+}
+
+void ApplicationFolder::addApp(const QString &storageId, int row)
+{
+    if (row < 0 || row > m_applications.size()) {
+        return;
+    }
+
+    if (KService::Ptr service = KService::serviceByStorageId(storageId)) {
+        Application *app = new Application(this, service);
+        m_applications.insert(row, app);
+        Q_EMIT applicationsChanged();
+        Q_EMIT saveRequested();
+    }
+}
+
+void ApplicationFolder::removeApp(int row)
+{
+    if (row < 0 || row >= m_applications.size()) {
+        return;
+    }
+
+    m_applications[row]->deleteLater();
+    m_applications.removeAt(row);
+    Q_EMIT applicationsChanged();
+    Q_EMIT saveRequested();
 }

containments/homescreens/halcyon/applicationfolder.h

@@ -15,6 +15,9 @@
 #include <KWayland/Client/registry.h>
 #include <KWayland/Client/surface.h>
 
+/**
+ * @short Object that represents an application folder on the main page.
+ */
 class ApplicationFolder : public QObject
 {
     Q_OBJECT
@@ -22,7 +25,7 @@ class ApplicationFolder : public QObject
     Q_PROPERTY(QList<Application *> applications READ applications NOTIFY applicationsChanged)
 
 public:
-    ApplicationFolder(QObject *parent = nullptr);
+    ApplicationFolder(QObject *parent = nullptr, QString name = QString{});
 
     static ApplicationFolder *fromJson(QJsonObject &obj, QObject *parent);
     QJsonObject toJson();
@@ -33,9 +36,13 @@ public:
     QList<Application *> applications();
     void setApplications(QList<Application *> applications);
 
+    Q_INVOKABLE void addApp(const QString &storageId, int row);
+    Q_INVOKABLE void removeApp(int row);
+
 Q_SIGNALS:
     void nameChanged();
     void applicationsChanged();
+    void saveRequested();
 
 private:
     QString m_name;

containments/homescreens/halcyon/applicationlistmodel.h

@@ -13,7 +13,7 @@
 #include <QSet>
 
 /**
- * @short The base application list, used directly by the app drawer.
+ * @short The base application list, used directly by the full app list page.
  */
 class ApplicationListModel : public QAbstractListModel
 {

containments/homescreens/halcyon/pinnedmodel.cpp

@@ -44,7 +44,7 @@ QHash<int, QByteArray> PinnedModel::roleNames() const
 
 void PinnedModel::addApp(const QString &storageId, int row)
 {
-    if (row < 0 && row > m_applications.size()) {
+    if (row < 0 || row > m_applications.size()) {
         return;
     }
 
@@ -53,7 +53,7 @@ void PinnedModel::addApp(const QString &storageId, int row)
 
         beginInsertRows(QModelIndex(), row, row);
         m_applications.insert(row, app);
-        m_folders.insert(0, nullptr); // maintain indicies
+        m_folders.insert(row, nullptr); // maintain indicies
         endInsertRows();
 
         save();
@@ -62,7 +62,7 @@ void PinnedModel::addApp(const QString &storageId, int row)
 
 void PinnedModel::removeApp(int row)
 {
-    if (row < 0 && row >= m_applications.size()) {
+    if (row < 0 || row >= m_applications.size()) {
         return;
     }
 
@@ -75,6 +75,37 @@ void PinnedModel::removeApp(int row)
     save();
 }
 
+void PinnedModel::addFolder(QString name, int row)
+{
+    if (row < 0 || row > m_applications.size()) {
+        return;
+    }
+
+    ApplicationFolder *folder = new ApplicationFolder(this, name);
+    connect(folder, &ApplicationFolder::saveRequested, this, &PinnedModel::save);
+
+    beginInsertRows(QModelIndex(), row, row);
+    m_applications.insert(row, nullptr);
+    m_folders.insert(row, folder);
+    endInsertRows();
+
+    save();
+}
+
+void PinnedModel::removeFolder(int row)
+{
+    if (row < 0 || row >= m_applications.size()) {
+        return;
+    }
+
+    beginRemoveRows(QModelIndex(), row, row);
+    m_applications.removeAt(row);
+    m_folders.removeAt(row);
+    endRemoveRows();
+
+    save();
+}
+
 void PinnedModel::load()
 {
     if (!m_applet) {
@@ -99,6 +130,8 @@ void PinnedModel::load()
         } else if (obj[QStringLiteral("type")].toString() == "folder") {
             // read folder
             ApplicationFolder *folder = ApplicationFolder::fromJson(obj, this);
+            connect(folder, &ApplicationFolder::saveRequested, this, &PinnedModel::save);
+
             if (folder) {
                 m_applications.append(nullptr);
                 m_folders.append(folder);

containments/homescreens/halcyon/pinnedmodel.h

@@ -19,6 +19,9 @@
 #include <KWayland/Client/registry.h>
 #include <KWayland/Client/surface.h>
 
+/**
+ * @short The applications and folders model on the main page.
+ */
 class PinnedModel : public QAbstractListModel
 {
     Q_OBJECT
@@ -35,6 +38,8 @@ public:
 
     Q_INVOKABLE void addApp(const QString &storageId, int row);
     Q_INVOKABLE void removeApp(int row);
+    Q_INVOKABLE void addFolder(QString name, int row);
+    Q_INVOKABLE void removeFolder(int row);
 
     Q_INVOKABLE void load();
     void save();