fix(ContactsListProxyModel): supports weight filter

tests/src/components/contacts/ContactModel.hpp

@@ -6,6 +6,8 @@
 // ===================================================================
 
 class ContactModel : public QObject {
+  friend class ContactsListProxyModel;
+
   Q_OBJECT;
 
   Q_PROPERTY(
@@ -76,14 +78,14 @@ public:
     m_sip_addresses = sip_addresses;
   }
 
-  QString getUsername () const {
-    return m_username;
-  }
-
 signals:
   void contactUpdated ();
 
 private:
+  QString getUsername () const {
+    return m_username;
+  }
+
   void setUsername (const QString &username) {
     m_username = username;
   }

tests/src/components/contacts/ContactsListModel.hpp

@@ -8,6 +8,8 @@
 // ===================================================================
 
 class ContactsListModel : public QAbstractListModel {
+  friend class ContactsListProxyModel;
+
   Q_OBJECT;
 
 public:

tests/src/components/contacts/ContactsListProxyModel.cpp

@@ -2,6 +2,10 @@
 
 #include "ContactsListProxyModel.hpp"
 
+#define USERNAME_WEIGHT 0.5
+#define MAIN_SIP_ADDRESS_WEIGHT 0.3
+#define OTHER_SIP_ADDRESSES_WEIGHT 0.2
+
 // ===================================================================
 
 ContactsListModel *ContactsListProxyModel::m_list = nullptr;
@@ -9,6 +13,11 @@ ContactsListModel *ContactsListProxyModel::m_list = nullptr;
 ContactsListProxyModel::ContactsListProxyModel (QObject *parent) : QSortFilterProxyModel(parent) {
   setSourceModel(m_list);
   setDynamicSortFilter(true);
+  setFilterCaseSensitivity(Qt::CaseInsensitive);
+
+  foreach (const ContactModel *contact, m_list->m_list)
+    m_weights[contact] = 0;
+
   sort(0);
 }
 
@@ -16,7 +25,7 @@ void ContactsListProxyModel::initContactsListModel (ContactsListModel *list) {
   if (!m_list)
     m_list = list;
   else
-    qWarning() << "Contacts list model already defined.";
+    qWarning() << "Contacts list model is already defined.";
 }
 
 bool ContactsListProxyModel::filterAcceptsRow (int source_row, const QModelIndex &source_parent) const {
@@ -25,17 +34,45 @@ bool ContactsListProxyModel::filterAcceptsRow (int source_row, const QModelIndex
     index.data(ContactsListModel::ContactRole)
   );
 
-  qDebug() << "A";
-
-  return contact->getUsername().contains(
-    filterRegExp().pattern(),
-    Qt::CaseInsensitive
-  );
+  int weight = m_weights[contact] = computeContactWeight(*contact);
+  return weight > 0;
 }
 
 bool ContactsListProxyModel::lessThan (const QModelIndex &left, const QModelIndex &right) const {
+  const ContactModel *contact_a = qvariant_cast<ContactModel *>(
+    sourceModel()->data(left, ContactsListModel::ContactRole)
+  );
+  const ContactModel *contact_b = qvariant_cast<ContactModel *>(
+    sourceModel()->data(right, ContactsListModel::ContactRole)
+  );
 
-  qDebug() << "B";
+  float weight_a = m_weights[contact_a];
+  float weight_b = m_weights[contact_b];
 
-  return true;
+  // Sort by weight and name.
+  return (
+    weight_a > weight_b ||
+    (weight_a == weight_b && contact_a->m_username <= contact_b->m_username)
+  );
+}
+
+float ContactsListProxyModel::computeContactWeight (const ContactModel &contact) const {
+  float weight = 0;
+
+  if (filterRegExp().indexIn(contact.m_username) != -1)
+    weight += USERNAME_WEIGHT;
+
+  const QStringList &addresses = contact.m_sip_addresses;
+
+  if (filterRegExp().indexIn(addresses[0]) != -1)
+    weight += MAIN_SIP_ADDRESS_WEIGHT;
+
+  int size = addresses.size();
+
+  if (size > 1)
+    for (auto it = ++addresses.constBegin(); it != addresses.constEnd(); ++it)
+      if (filterRegExp().indexIn(*it) != -1)
+        weight += OTHER_SIP_ADDRESSES_WEIGHT / size;
+
+  return weight;
 }

tests/src/components/contacts/ContactsListProxyModel.hpp

@@ -16,10 +16,18 @@ public:
 
 protected:
   bool filterAcceptsRow (int source_row, const QModelIndex &source_parent) const;
-  bool lessThan(const QModelIndex &left, const QModelIndex &right) const;
+  bool lessThan (const QModelIndex &left, const QModelIndex &right) const;
 
 private:
+  float computeContactWeight (const ContactModel &contact) const;
+
+  // The contacts list is shared between `ContactsListProxyModel`
+  // it's necessary to initialize it with `initContactsListModel`.
   static ContactsListModel *m_list;
+
+  // It's just a cache to save values computed by `filterAcceptsRow`
+  // and reused by `lessThan`.
+  mutable QHash<const ContactModel *, float> m_weights;
 };
 
 #endif // CONTACTS_LIST_PROXY_MODEL_H

tests/src/main.cpp

@@ -10,6 +10,8 @@
 
 #include "app.hpp"
 #include "components/contacts/ContactsListProxyModel.hpp"
+
+#include "components/contacts/ContactsListModel.hpp"
 #include "components/notification/Notification.hpp"
 
 // ===================================================================

tests/ui/views/MainWindow/Contacts.qml

@@ -32,7 +32,9 @@ ColumnLayout {
         }
         placeholderText: qsTr('searchContactPlaceholder')
 
-        onTextChanged: contacts.setFilterRegExp(text)
+        onTextChanged: {
+          contacts.setFilterFixedString(text)
+        }
       }
 
       ExclusiveButtons {