Provide a user model to the themes.

CMakeLists.txt

@@ -31,6 +31,7 @@ set(SOURCES
   src/LockFile.cpp
   src/Main.cpp
   src/SessionManager.cpp
+  src/UserModel.cpp
   src/Util.cpp
 )
 

README.md

@@ -4,7 +4,7 @@ SDDM is a new lightweight display manager for X11 aiming to be fast, simple and
 
 One of the distinctive features of SDDM is the ability to use QML for user interface creation. QML is a JavaScript-based, declarative language for designing user interface–centric applications. It is designed to provide highly customizable user interfaces with fluid animations. It supports images, gradients, color/size/opacity/property animations, hardware acceleration and lots of other stuff needed to create beatiful interfaces by today's standards.
 
-SDDM's code base is tiny: under 1000 lines of code.
+SDDM has a small, simple and hackable codebase.
 
 __Dependencies__
 

TODO

@@ -1,5 +1,4 @@
 * Investigate suspend/hibernate.
-* List of available users with pictures, names etc.
 * Remembering last username, last session should be configurable.
 * Create a component library, to be used by themes.
 * Enable creation of configurable themes. Themes may provide a

scripts/sddm.conf.sample

@@ -39,6 +39,10 @@ ThemesDir=/usr/share/apps/sddm/themes
 # Name of the current theme
 CurrentTheme=${THEME}
 
+# Minimum user id of the users to be listed in the
+# user interface
+MinimumUid=1000
+
 # Name of last logged-in user. This username will be
 # preselected/shown when the login screen shows up.
 LastUser=

src/Application.cpp

@@ -24,6 +24,7 @@
 #include "DisplayManager.h"
 #include "LockFile.h"
 #include "SessionManager.h"
+#include "UserModel.h"
 #include "Util.h"
 
 #include <QDebug>
@@ -104,13 +105,17 @@ namespace SDE {
         QDeclarativeView view;
         view.setResizeMode(QDeclarativeView::SizeRootObjectToView);
 #endif
-        // add session manager to context
+        // create session manager
         SessionManager sessionManager;
+        // create user model
+        UserModel userModel;
+        // set context properties
         view.rootContext()->setContextProperty("sessionManager", &sessionManager);
+        view.rootContext()->setContextProperty("userModel", &userModel);
         // load theme
         view.setSource(QUrl::fromLocalFile(main));
         // show application
-        view.show();
+        view.showFullScreen();
         // execute application
         app.exec();
     }
@@ -171,6 +176,9 @@ namespace SDE {
                 continue;
             }
 
+            // create user model
+            UserModel userModel;
+
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
             // execute user interface in a seperate process
             // this is needed because apperantly we can't create multiple
@@ -182,8 +190,9 @@ namespace SDE {
                 // create view
                 QQuickView view;
                 view.setResizeMode(QQuickView::SizeRootObjectToView);
-                // add session manager to context
+                // set context properties
                 view.rootContext()->setContextProperty("sessionManager", &sessionManager);
+                view.rootContext()->setContextProperty("userModel", &userModel);
                 // load qml file
                 view.setSource(QUrl::fromLocalFile(main));
                 // close view on successful login
@@ -202,8 +211,9 @@ namespace SDE {
             // create view
             QDeclarativeView view;
             view.setResizeMode(QDeclarativeView::SizeRootObjectToView);
-            // add session manager to context
+            // set context properties
             view.rootContext()->setContextProperty("sessionManager", &sessionManager);
+            view.rootContext()->setContextProperty("userModel", &userModel);
             // load qml file
             view.setSource(QUrl::fromLocalFile(main));
             // close view on successful login

src/Configuration.cpp

@@ -48,6 +48,8 @@ namespace SDE {
         QString themesDir { "" };
         QString currentTheme { "" };
 
+        int minimumUid { 0 };
+
         QString lastUser { "" };
         QString autoUser { "" };
     };
@@ -84,6 +86,7 @@ namespace SDE {
         d->sessionCommand = settings.value("SessionCommand", "").toString();
         d->themesDir = settings.value("ThemesDir", "").toString();
         d->currentTheme = settings.value("CurrentTheme", "").toString();
+        d->minimumUid = settings.value("MinimumUid", "0").toInt();
         d->lastUser = settings.value("LastUser", "").toString();
         d->autoUser = settings.value("AutoUser", "").toString();
     }
@@ -105,6 +108,7 @@ namespace SDE {
         settings.setValue("SessionCommand", d->sessionCommand);
         settings.setValue("ThemesDir", d->themesDir);
         settings.setValue("CurrentTheme", d->currentTheme);
+        settings.setValue("MinimumUid", d->minimumUid);
         settings.setValue("LastUser", d->lastUser);
         settings.setValue("AutoUser", d->autoUser);
     }
@@ -169,6 +173,10 @@ namespace SDE {
         return d->currentTheme;
     }
 
+    const int Configuration::minimumUid() const {
+        return d->minimumUid;
+    }
+
     const QString &Configuration::lastUser() const {
         return d->lastUser;
     }

src/Configuration.h

@@ -59,6 +59,8 @@ namespace SDE {
         const QString &themesDir() const;
         const QString &currentTheme() const;
 
+        const int minimumUid() const;
+
         const QString &lastUser() const;
         void setLastUser(const QString &lastUser);
 

src/UserModel.cpp

@@ -0,0 +1,139 @@
+/***************************************************************************
+* Copyright (c) 2013 Abdurrahman AVCI <abdurrahmanavci@gmail.com>
+*
+* 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 2 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, write to the
+* Free Software Foundation, Inc.,
+* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+***************************************************************************/
+
+#include "UserModel.h"
+
+#include "Configuration.h"
+
+#include <QFile>
+#include <QList>
+#include <QTextStream>
+
+#include <memory>
+
+namespace SDE {
+    class User {
+    public:
+        QString userName { "" };
+        QString realName { "" };
+        QString icon { "" };
+        int uid { 0 };
+        int gid { 0 };
+    };
+
+    typedef std::shared_ptr<User> UserPtr;
+
+    class UserModelPrivate {
+    public:
+        QList<UserPtr> users;
+    };
+
+    UserModel::UserModel(QObject *parent) : QAbstractListModel(parent), d(new UserModelPrivate()) {
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+        // set role names
+        QHash<int, QByteArray> roleNames;
+        roleNames[Qt::UserRole + 1] = "userName";
+        roleNames[Qt::UserRole + 2] = "realName";
+        roleNames[Qt::UserRole + 3] = "icon";
+        // set role names
+        setRoleNames(roleNames);
+#endif
+
+        // create file object
+        QFile file("/etc/passwd");
+        // open file
+        if (!file.open(QIODevice::ReadOnly))
+            return;
+
+        // create text stream
+        QTextStream in(&file);
+
+        // process lines
+        while (!in.atEnd()) {
+
+            // read line
+            QString line = in.readLine();
+
+            // split line into fields
+            QStringList fields = line.split(":", QString::KeepEmptyParts);
+
+            // there should be exactly 7 fields
+            if (fields.length() != 7)
+                continue;
+
+            // skip entries with uids smaller than minimum uid
+            if (fields.at(2).toInt() < Configuration::instance()->minimumUid())
+                continue;
+
+            UserPtr user { new User() };
+            user->userName = fields.at(0);
+            user->realName = fields.at(4).split(",").first();
+            user->uid = fields.at(2).toInt();
+            user->gid = fields.at(3).toInt();
+            // TODO: set user icon
+            user->icon = "/usr/share/apps/kdm/faces/root.face.icon";
+            // add user
+            beginInsertRows(QModelIndex(), rowCount(), rowCount());
+            d->users << user;
+            endInsertRows();
+        }
+
+        // close file
+        file.close();
+    }
+
+    UserModel::~UserModel() {
+        delete d;
+    }
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+    QHash<int, QByteArray> UserModel::roleNames() const {
+        // set role names
+        QHash<int, QByteArray> roleNames;
+        roleNames[Qt::UserRole + 1] = "userName";
+        roleNames[Qt::UserRole + 2] = "realName";
+        roleNames[Qt::UserRole + 3] = "icon";
+
+        return roleNames;
+    }
+#endif
+
+    int UserModel::rowCount(const QModelIndex &parent) const {
+        return d->users.length();
+    }
+
+    QVariant UserModel::data(const QModelIndex &index, int role) const {
+        if (index.row() < 0 || index.row() > d->users.count())
+            return QVariant();
+
+        // get user
+        UserPtr user = d->users[index.row()];
+
+        // return correct value
+        if (role == (Qt::UserRole + 1))
+            return user->userName;
+        else if (role == (Qt::UserRole + 2))
+            return user->realName;
+        else if (role == (Qt::UserRole + 3))
+            return user->icon;
+
+        // return empty value
+        return QVariant();
+    }
+}

src/UserModel.h

@@ -0,0 +1,47 @@
+/***************************************************************************
+* Copyright (c) 2013 Abdurrahman AVCI <abdurrahmanavci@gmail.com>
+*
+* 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 2 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, write to the
+* Free Software Foundation, Inc.,
+* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+***************************************************************************/
+
+#ifndef USERMODEL_H
+#define USERMODEL_H
+
+#include <QAbstractListModel>
+#include <QHash>
+
+namespace SDE {
+    class UserModelPrivate;
+
+    class UserModel : public QAbstractListModel {
+        Q_OBJECT
+    public:
+        UserModel(QObject *parent = 0);
+        ~UserModel();
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+        QHash<int, QByteArray> roleNames() const override;
+#endif
+
+        int rowCount(const QModelIndex & parent = QModelIndex()) const override;
+        QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const override;
+
+    private:
+        UserModelPrivate *d { nullptr };
+    };
+}
+
+#endif // USERMODEL_H