ui/CMakeLists.txt

@@ -24,6 +24,7 @@ set(squawkUI_SRC
   models/room.cpp
   models/abstractparticipant.cpp
   models/participant.cpp
+  models/reference.cpp
   utils/messageline.cpp
   utils//message.cpp
   utils/resizer.cpp

ui/models/item.cpp

@@ -26,7 +26,8 @@ Models::Item::Item(Type p_type, const QMap<QString, QVariant> &p_data, Item *p_p
     type(p_type),
     name(""),
     childItems(),
-    parent(p_parent)
+    parent(p_parent),
+    references()
 {
     QMap<QString, QVariant>::const_iterator itr = p_data.find("name");
     if (itr != p_data.end()) {

ui/models/item.h

@@ -26,10 +26,12 @@
 #include <deque>
 
 #include "shared/enums.h"
-
 namespace Models {
 
+class Reference;
+    
 class Item : public QObject{
+    friend class Reference;
     Q_OBJECT
     public:
         enum Type {
@@ -39,7 +41,8 @@ class Item : public QObject{
             room,
             presence,
             participant,
-            root
+            root,
+            reference
         };
         
         explicit Item(Type p_type, const QMap<QString, QVariant> &data, Item *parentItem = 0);
@@ -62,8 +65,8 @@ class Item : public QObject{
         QString getName() const;
         void setName(const QString& name);
         
-        Item *child(int row);
-        int childCount() const;
+        virtual Item *child(int row);
+        virtual int childCount() const;
         virtual int columnCount() const;
         virtual QVariant data(int column) const;
         int row() const;
@@ -92,6 +95,7 @@ class Item : public QObject{
         QString name;
         std::deque<Item*> childItems;
         Item* parent;
+        std::deque<Item*> references;
         
     protected slots:
         virtual void toOfflineState();

ui/models/reference.cpp

@@ -0,0 +1,93 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "reference.h"
+
+using namespace Models;
+
+Models::Reference::Reference(Models::Item* original, Models::Item* parent):
+    Models::Item(reference, {}, parent),
+    original(original)
+{
+    original->references.push_back(this);
+    
+    connect(original, &Item::childChanged, this, &Item::childChanged);
+    connect(original, &Item::childIsAboutToBeInserted, this, &Item::childIsAboutToBeInserted);
+    connect(original, &Item::childInserted, this, &Item::childInserted);
+    connect(original, &Item::childIsAboutToBeRemoved, this, &Item::childIsAboutToBeRemoved);
+    connect(original, &Item::childRemoved, this, &Item::childRemoved);
+    connect(original, &Item::childIsAboutToBeMoved, this, &Item::childIsAboutToBeMoved);
+    connect(original, &Item::childMoved, this, &Item::childMoved);
+}
+
+Models::Reference::~Reference()
+{
+    disconnect(original, &Item::childIsAboutToBeInserted, this, &Item::childIsAboutToBeInserted);
+    disconnect(original, &Item::childInserted, this, &Item::childInserted);
+    disconnect(original, &Item::childIsAboutToBeRemoved, this, &Item::childIsAboutToBeRemoved);
+    disconnect(original, &Item::childRemoved, this, &Item::childRemoved);
+    disconnect(original, &Item::childIsAboutToBeMoved, this, &Item::childIsAboutToBeMoved);
+    disconnect(original, &Item::childMoved, this, &Item::childMoved);
+    
+    for (std::deque<Item*>::const_iterator itr = original->references.begin(), end = original->references.end(); itr != end; itr++) {
+        if (*itr == this) {
+            original->references.erase(itr);
+            break;
+        }
+    }
+}
+
+int Models::Reference::columnCount() const
+{
+    return original->columnCount();
+}
+
+QVariant Models::Reference::data(int column) const
+{
+    return original->data(column);
+}
+
+QString Models::Reference::getDisplayedName() const
+{
+    return original->getDisplayedName();
+}
+
+Models::Item * Models::Reference::dereference()
+{
+    return original;
+}
+
+const Models::Item * Models::Reference::dereferenceConst() const
+{
+    return original;
+}
+
+void Models::Reference::appendChild(Models::Item* child)
+{
+    original->appendChild(child);
+}
+
+void Models::Reference::removeChild(int index)
+{
+    original->removeChild(index);
+}
+
+void Models::Reference::toOfflineState()
+{
+    original->toOfflineState();
+}

ui/models/reference.h

@@ -0,0 +1,54 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MODELS_REFERENCE_H
+#define MODELS_REFERENCE_H
+
+#include "item.h"
+
+namespace Models {
+
+/**
+ * @todo write docs
+ */
+class Reference : public Models::Item
+{
+    Q_OBJECT
+public:
+    Reference(Models::Item* original, Models::Item* parent);
+    ~Reference();
+    
+    int columnCount() const override;
+    QVariant data(int column) const override;
+    QString getDisplayedName() const override;
+    void appendChild(Models::Item * child) override;
+    void removeChild(int index) override;
+    Item* dereference();
+    const Item* dereferenceConst() const;
+    
+protected slots:
+    void toOfflineState() override;
+    
+private:
+    Models::Item* original;
+    
+};
+
+}
+
+#endif // MODELS_REFERENCE_H

ui/models/roster.cpp

@@ -480,7 +480,9 @@ void Models::Roster::addContact(const QString& account, const QString& jid, cons
             if (item->type == Item::contact) {
                 Contact* ca = static_cast<Contact*>(item);
                 if (ca->getJid() == jid) {
-                    qDebug() << "An attempt to add a already existing contact " << jid << " to the group " << group << ", contact will be moved from ungrouped contacts of " << account;
+                    qDebug()    << "An attempt to add a already existing contact " << jid 
+                                << " to the group " << group 
+                                << ", contact will be moved from ungrouped contacts of " << account;
                     
                     parent->appendChild(ca);
                     return;