ui/logic/data: refreshing only source files that have been updated

This change adds the refresh component that allows for refreshing the source code via UI or shortcut. If automatic
refreshing is activated via the UI, the code is refreshed anytime the window gets focus. The contents of all the
updated source files get removed from Storage, before reparsing them. File dependencies are not respected yet.

src/lib/data/search/SearchIndex.cpp

@@ -3,6 +3,8 @@
 #include <algorithm>
 #include <cctype>
 
+#include "utility/logging/logging.h"
+
 #include "data/search/SearchMatch.h"
 
 std::vector<SearchMatch> SearchIndex::getMatches(
@@ -34,6 +36,11 @@ void SearchIndex::clear()
 	m_root.m_nodes.clear();
 }
 
+size_t SearchIndex::getNodeCount() const
+{
+	return m_root.getNodeCount() - 1;
+}
+
 Id SearchIndex::getWordId(const std::string& word)
 {
 	return m_dictionary.getWordId(word);
@@ -71,6 +78,50 @@ SearchNode* SearchIndex::getNode(const std::string& fullName) const
 	return nullptr;
 }
 
+SearchNode* SearchIndex::getNode(const SearchNode* searchNode) const
+{
+	std::deque<Id> nameIds = searchNode->getNameIdsRecursive();
+
+	if (nameIds.size())
+	{
+		return m_root.getNodeRecursive(&nameIds).get();
+	}
+
+	return nullptr;
+}
+
+void SearchIndex::removeNode(SearchNode* searchNode)
+{
+	SearchNode* parent = searchNode->getParent();
+
+	if (!parent)
+	{
+		LOG_ERROR_STREAM(<< "SearchNode to be removed has no parent: " << searchNode->getFullName());
+		return;
+	}
+
+	parent->removeSearchNode(searchNode);
+}
+
+bool SearchIndex::removeNodeIfUnreferencedRecursive(SearchNode* searchNode)
+{
+	if (!searchNode->hasTokenIdsRecursive())
+	{
+		SearchNode* parent = searchNode->getParent();
+
+		removeNode(searchNode);
+
+		if (parent && parent != &m_root)
+		{
+			removeNodeIfUnreferencedRecursive(parent);
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
 SearchResults SearchIndex::runFuzzySearch(const std::string& query) const
 {
 	return m_root.runFuzzySearch(query);