ui: split steps of indexing files and saving the last few batches of data

* implemented showing dialog for database injection
* implemented easy-to-read way of creating behavior tree structures
* moved injector wait logic out of injection task

src/lib/data/TaskShowDialogView.cpp

@@ -0,0 +1,36 @@
+#include "data/TaskShowDialogView.h"
+
+#include "component/view/DialogView.h"
+
+TaskShowDialogView::TaskShowDialogView(
+	const std::string& title,
+	const std::string& message,
+	DialogView* dialogView
+)
+	: m_title(title)
+	, m_message(message)
+	, m_dialogView(dialogView)
+{
+}
+
+TaskShowDialogView::~TaskShowDialogView()
+{
+}
+
+void TaskShowDialogView::doEnter(std::shared_ptr<Blackboard> blackboard)
+{
+}
+
+Task::TaskState TaskShowDialogView::doUpdate(std::shared_ptr<Blackboard> blackboard)
+{
+	m_dialogView->showProgressDialog(m_title, m_message);
+	return STATE_SUCCESS;
+}
+
+void TaskShowDialogView::doExit(std::shared_ptr<Blackboard> blackboard)
+{
+}
+
+void TaskShowDialogView::doReset(std::shared_ptr<Blackboard> blackboard)
+{
+}