[expression_editor] Base app for development, to remove later.

Change-Id: I1d5b59f67fd146d2e2917546a7d8b9419a0a7036

apps/expression_editor/app.cpp

@@ -0,0 +1,29 @@
+#include "app.h"
+#include "../i18n.h"
+
+namespace ExpressionEditor {
+
+I18n::Message App::Descriptor::name() {
+  return I18n::Message::ExpressionEditorApp;
+}
+
+I18n::Message App::Descriptor::upperName() {
+  return I18n::Message::ExpressionEditorAppCapital;
+}
+
+App * App::Snapshot::unpack(Container * container) {
+  return new App(container, this);
+}
+
+App::Descriptor * App::Snapshot::descriptor() {
+  static Descriptor descriptor;
+  return &descriptor;
+}
+
+App::App(Container * container, Snapshot * snapshot) :
+  ::App(container, snapshot, &m_controller),
+  m_controller(&m_modalViewController, snapshot->expressionAndLayout())
+{
+}
+
+}