ui: Fixed switching code view mode shows active reference

src/lib_gui/qt/element/QtCodeArea.cpp

@@ -350,7 +350,7 @@ Id QtCodeArea::getLocationIdOfFirstActiveLocation(Id tokenId) const
 	for (const Annotation& annotation : m_annotations)
 	{
 		if (annotation.locationType == LocationType::LOCATION_TOKEN && annotation.isActive &&
-			annotation.tokenIds.find(tokenId) != annotation.tokenIds.end())
+			(!tokenId || annotation.tokenIds.find(tokenId) != annotation.tokenIds.end()))
 		{
 			return annotation.locationId;
 		}

src/lib_gui/qt/element/QtCodeFile.cpp

@@ -408,13 +408,26 @@ void QtCodeFile::clickedSnippetButton()
 
 void QtCodeFile::clickedMaximizeButton()
 {
-	uint firstLineNumber = 1;
-	std::vector<QtCodeSnippet*> snippets = getVisibleSnippets();
-	if (snippets.size())
+	uint lineNumber = 0;
+	Id locationId = 0;
+
+	std::pair<QtCodeSnippet*, Id> snippet = getFirstSnippetWithActiveLocationId(0);
+	if (snippet.first)
 	{
-		firstLineNumber = snippets[0]->getStartLineNumber();
+		locationId = snippet.second;
 	}
-	m_navigator->requestScroll(m_filePath, firstLineNumber, 0, false, QtCodeNavigateable::SCROLL_CENTER);
+	else
+	{
+		lineNumber = 1;
+
+		std::vector<QtCodeSnippet*> snippets = getVisibleSnippets();
+		if (snippets.size())
+		{
+			lineNumber = snippets[0]->getStartLineNumber();
+		}
+	}
+
+	m_navigator->requestScroll(m_filePath, lineNumber, locationId, false, QtCodeNavigateable::SCROLL_CENTER);
 
 	MessageChangeFileView(
 		m_filePath,

src/lib_gui/qt/element/QtCodeFileList.cpp

@@ -323,6 +323,25 @@ void QtCodeFileList::maximizeFirstFile()
 	}
 }
 
+std::pair<QtCodeFile*, Id> QtCodeFileList::getFirstFileWithActiveLocationId() const
+{
+	for (QtCodeFile* file : m_files)
+	{
+		if (file->isCollapsed())
+		{
+			continue;
+		}
+
+		std::pair<QtCodeSnippet*, Id> snippet = file->getFirstSnippetWithActiveLocationId(0);
+		if (snippet.first != nullptr)
+		{
+			return std::make_pair(file, snippet.second);
+		}
+	}
+
+	return std::make_pair(nullptr, 0);
+}
+
 std::pair<QtCodeSnippet*, Id> QtCodeFileList::getFirstSnippetWithActiveLocationId(Id tokenId) const
 {
 	std::pair<QtCodeSnippet*, Id> result(nullptr, 0);

src/lib_gui/qt/element/QtCodeFileList.h

@@ -53,6 +53,7 @@ public:
 
 	void maximizeFirstFile();
 
+	std::pair<QtCodeFile*, Id> getFirstFileWithActiveLocationId() const;
 	std::pair<QtCodeSnippet*, Id> getFirstSnippetWithActiveLocationId(Id tokenId) const;
 
 protected:

src/lib_gui/qt/element/QtCodeNavigator.cpp

@@ -821,12 +821,30 @@ void QtCodeNavigator::nextReference(bool fromUI)
 
 void QtCodeNavigator::setModeList()
 {
+	if (m_mode == MODE_LIST)
+	{
+		return;
+	}
+
 	m_single->clickedSnippetButton();
 }
 
 void QtCodeNavigator::setModeSingle()
 {
-	m_list->maximizeFirstFile();
+	if (m_mode == MODE_SINGLE)
+	{
+		return;
+	}
+
+	QtCodeFile* file = m_list->getFirstFileWithActiveLocationId().first;
+	if (file)
+	{
+		file->clickedMaximizeButton();
+	}
+	else
+	{
+		m_list->maximizeFirstFile();
+	}
 }
 
 void QtCodeNavigator::showCurrentReference(bool fromUI)