first Qt-based client version

Refs #68886

Change-Id: I69b44506dc52a18c47f102466472c68fbf08600b
diff --git a/navstack.cpp b/navstack.cpp
new file mode 100644
index 0000000..745c4f0
--- /dev/null
+++ b/navstack.cpp
@@ -0,0 +1,77 @@
+/***************************************************************************
+ * Copyright (C) 2011-2015 by Savoir-Faire Linux                           *
+ * Author: Edric Ladent Milaret <edric.ladent-milaret@savoirfairelinux.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 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 "navstack.h"
+
+NavStack::NavStack(QStackedWidget* bar, QStackedWidget* stack, QWidget *parent)
+    : bar_(bar)
+    , stack_(stack)
+{
+    navList_.append(new MainBar());
+    navList_.append(new NavBar());
+
+    navList_.append(new CallWidget());
+    navList_.append(new ConfigurationWidget());
+
+    connect(navList_[Main], SIGNAL(minimize()), parent, SLOT(showMinimized()));
+    for (int i = 0; i < END; i++) {
+        if (i < CallScreen)
+            bar_->addWidget(navList_[i]);
+        else
+            stack_->addWidget(navList_[i]);
+        connect(navList_[i], SIGNAL(NavigationRequested(ScreenEnum)),
+                this, SLOT(onNavigationRequested(ScreenEnum)));
+        connect(navList_[i], SIGNAL(BackRequested()),
+                this, SLOT(onBackRequested()));
+    }
+}
+
+NavStack::~NavStack()
+{}
+
+void
+NavStack::onNavigationRequested(ScreenEnum screen) {
+    if (screen < CallScreen) {
+        bar_->setCurrentWidget(navList_[screen]);
+    } else {
+        stack_->setCurrentWidget(navList_[screen]);
+        setNavBar(navList_[screen]);
+        stackNav_.append(screen);
+    }
+}
+
+void
+NavStack::onBackRequested() {
+
+    navList_[stackNav_.pop()]->atExit();
+    ScreenEnum screen;
+
+    if (stackNav_.size() == 0)
+        screen = CallScreen;
+    else
+        screen = stackNav_.first();
+
+    stack_->setCurrentWidget(navList_[screen]);
+    setNavBar(navList_[screen]);
+}
+
+void
+NavStack::setNavBar(NavWidget* navW) {
+    if (navW->barDesired != END)
+        bar_->setCurrentWidget(navList_[navW->barDesired]);
+}