diff --git a/cmake/version.cmake b/cmake/version.cmake
index 337a6787..9530c46c 100644
--- a/cmake/version.cmake
+++ b/cmake/version.cmake
@@ -40,7 +40,7 @@ endif(EXISTS "${CMAKE_SOURCE_DIR}/.git")
 message(STATUS "Git current branch: ${GIT_BRANCH}")
 message(STATUS "Git commit hash: ${GIT_COMMIT_HASH}")
 message(STATUS "Git commit time: ${GIT_COMMIT_TIME}")
-message(STATUS "Git version number:" ${GIT_VERSION_NUMBER} )
+message(STATUS "Git version number: " ${GIT_VERSION_NUMBER} )
 
 configure_file(
   ${CMAKE_SOURCE_DIR}/cmake/version.h.in
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index 75813373..35c8befa 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -220,6 +220,7 @@ add_files(
 	utility/messaging/type/MessageActivateTokens.h
 	utility/messaging/type/MessageActivateWindow.h
 	utility/messaging/type/MessageAutoRefreshChanged.h
+	utility/messaging/type/MessageChangeFileView.h
 	utility/messaging/type/MessageDeactivateEdge.h
 	utility/messaging/type/MessageFind.h
 	utility/messaging/type/MessageFinishedParsing.h
@@ -239,9 +240,7 @@ add_files(
 	utility/messaging/type/MessageSearch.h
 	utility/messaging/type/MessageSearchAutocomplete.h
 	utility/messaging/type/MessageShowErrors.h
-	utility/messaging/type/MessageShowFile.h
 	utility/messaging/type/MessageShowScope.h
-	utility/messaging/type/MessageShowSnippets.h
 	utility/messaging/type/MessageStatus.h
 	utility/messaging/type/MessageSwitchColorScheme.h
 	utility/messaging/type/MessageUndo.h
diff --git a/src/lib/component/controller/CodeController.cpp b/src/lib/component/controller/CodeController.cpp
index 924daba9..650dcc75 100644
--- a/src/lib/component/controller/CodeController.cpp
+++ b/src/lib/component/controller/CodeController.cpp
@@ -78,18 +78,14 @@ void CodeController::handleMessage(MessageActivateAll* message)
 	snippets.insert(snippets.begin(), statsSnippet);
 
 	CodeView* view = getView();
-	view->setActiveTokenIds(std::vector<Id>());
 	view->setErrorMessages(errorMessages);
-	view->showCodeSnippets(snippets);
+	view->showCodeSnippets(snippets, std::vector<Id>());
+
+	showContents(message);
 }
 
 void CodeController::handleMessage(MessageActivateTokens* message)
 {
-	if (message->keepContent() && message->isIgnorable())
-	{
-		return;
-	}
-
 	std::vector<Id> activeTokenIds = message->tokenIds;
 	Id declarationId = 0; // 0 means that no token is found.
 
@@ -100,42 +96,100 @@ void CodeController::handleMessage(MessageActivateTokens* message)
 	// TODO: what about declarationId if more than 1 token is active? FIX THIS!
 
 	CodeView* view = getView();
-	view->setActiveTokenIds(activeTokenIds);
 	view->setErrorMessages(std::vector<std::string>());
 
 	if (message->isEdge)
 	{
-		view->showFirstActiveSnippet();
+		view->showFirstActiveSnippet(activeTokenIds);
 	}
 
 	if (message->keepContent())
 	{
-		view->showActiveTokenIds();
-		return;
+		view->showActiveTokenIds(activeTokenIds);
 	}
-
-	std::shared_ptr<TokenLocationCollection> collection = m_storageAccess->getTokenLocationsForTokenIds(activeTokenIds);
-	view->showCodeSnippets(getSnippetsForActiveTokenLocations(collection.get(), declarationId));
-
-	if (!message->isFromSystem)
+	else
 	{
-		size_t fileCount = collection->getTokenLocationFileCount();
-		size_t referenceCount = collection->getTokenLocationCount();
+		std::shared_ptr<TokenLocationCollection> collection = m_storageAccess->getTokenLocationsForTokenIds(activeTokenIds);
+		view->showCodeSnippets(getSnippetsForActiveTokenLocations(collection.get(), declarationId), activeTokenIds);
 
-		std::stringstream ss;
-		ss << message->tokenIds.size() << ' ';
-		ss << (message->tokenIds.size() == 1 ? "result" : "results");
-
-		if (fileCount > 0)
+		if (!message->isFromSystem)
 		{
-			ss << " with " << referenceCount << ' ';
-			ss << (referenceCount == 1 ? "reference" : "references");
-			ss << " in " << fileCount << ' ';
-			ss << (fileCount == 1 ? "file" : "files");
-		}
+			size_t fileCount = collection->getTokenLocationFileCount();
+			size_t referenceCount = collection->getTokenLocationCount();
 
-		MessageStatus(ss.str()).dispatch();
+			std::stringstream ss;
+			ss << message->tokenIds.size() << ' ';
+			ss << (message->tokenIds.size() == 1 ? "result" : "results");
+
+			if (fileCount > 0)
+			{
+				ss << " with " << referenceCount << ' ';
+				ss << (referenceCount == 1 ? "reference" : "references");
+				ss << " in " << fileCount << ' ';
+				ss << (fileCount == 1 ? "file" : "files");
+			}
+
+			MessageStatus(ss.str()).dispatch();
+		}
 	}
+
+	showContents(message);
+}
+
+void CodeController::handleMessage(MessageChangeFileView* message)
+{
+	CodeView* view = getView();
+
+	switch (message->state)
+	{
+	case MessageChangeFileView::FILE_MINIMIZED:
+		view->setFileState(message->filePath, CodeView::FILE_MINIMIZED);
+		break;
+
+	case MessageChangeFileView::FILE_SNIPPETS:
+		if (message->needsData)
+		{
+			view->addCodeSnippets(getSnippetsForActiveTokenLocationsInFile(message->locationFile), false);
+		}
+		view->setFileState(message->filePath, CodeView::FILE_SNIPPETS);
+		break;
+
+	case MessageChangeFileView::FILE_MAXIMIZED:
+		if (message->needsData)
+		{
+			CodeView::CodeSnippetParams params;
+			params.startLineNumber = 0;
+			params.endLineNumber = 0;
+
+			std::shared_ptr<TextAccess> textAccess = m_storageAccess->getFileContent(message->filePath);
+			params.code = textAccess->getText();
+
+			params.modificationTime = m_storageAccess->getFileModificationTime(message->filePath);
+
+			if (message->showErrors)
+			{
+				std::vector<std::string> errorMessages;
+				TokenLocationCollection errorCollection = m_storageAccess->getErrorTokenLocations(&errorMessages);
+				params.locationFile = std::make_shared<TokenLocationFile>(*errorCollection.findTokenLocationFileByPath(message->filePath));
+				params.locationFile->isWholeCopy = true;
+			}
+			else
+			{
+				params.locationFile = m_storageAccess->getTokenLocationsForFile(message->filePath.str());
+			}
+
+			getView()->showCodeFile(params);
+		}
+		view->setFileState(message->filePath, CodeView::FILE_MAXIMIZED);
+		break;
+	}
+
+	showContents(message);
+}
+
+void CodeController::handleMessage(MessageFlushUpdates* message)
+{
+	showContents(message);
 }
 
 void CodeController::handleMessage(MessageFocusIn* message)
@@ -154,35 +208,10 @@ void CodeController::handleMessage(MessageShowErrors* message)
 	std::vector<CodeView::CodeSnippetParams> snippets = getSnippetsForErrorLocations(&errorMessages);
 
 	CodeView* view = getView();
-	view->setActiveTokenIds(std::vector<Id>());
 	view->setErrorMessages(errorMessages);
-	view->showCodeSnippets(snippets);
-}
+	view->showCodeSnippets(snippets, std::vector<Id>());
 
-void CodeController::handleMessage(MessageShowFile* message)
-{
-	CodeView::CodeSnippetParams params;
-	params.startLineNumber = 0;
-	params.endLineNumber = 0;
-
-	std::shared_ptr<TextAccess> textAccess = m_storageAccess->getFileContent(message->filePath);
-	params.code = textAccess->getText();
-
-	params.modificationTime = m_storageAccess->getFileModificationTime(message->filePath);
-
-	if (message->showErrors)
-	{
-		std::vector<std::string> errorMessages;
-		TokenLocationCollection errorCollection = m_storageAccess->getErrorTokenLocations(&errorMessages);
-		params.locationFile = std::make_shared<TokenLocationFile>(*errorCollection.findTokenLocationFileByPath(message->filePath));
-		params.locationFile->isWholeCopy = true;
-	}
-	else
-	{
-		params.locationFile = m_storageAccess->getTokenLocationsForFile(message->filePath.str());
-	}
-
-	getView()->showCodeFile(params);
+	showContents(message);
 }
 
 void CodeController::handleMessage(MessageShowScope* message)
@@ -206,11 +235,8 @@ void CodeController::handleMessage(MessageShowScope* message)
 	}
 
 	getView()->addCodeSnippets(snippets, true);
-}
 
-void CodeController::handleMessage(MessageShowSnippets* message)
-{
-	getView()->addCodeSnippets(getSnippetsForActiveTokenLocationsInFile(message->locationFile), false);
+	showContents(message);
 }
 
 CodeView* CodeController::getView()
@@ -218,6 +244,14 @@ CodeView* CodeController::getView()
 	return Controller::getView<CodeView>();
 }
 
+void CodeController::showContents(MessageBase* message)
+{
+	if (message->undoRedoType == MessageBase::UNDOTYPE_NORMAL)
+	{
+		getView()->showContents();
+	}
+}
+
 std::vector<CodeView::CodeSnippetParams> CodeController::getSnippetsForActiveTokenLocations(
 	const TokenLocationCollection* collection, Id declarationId
 ) const {
diff --git a/src/lib/component/controller/CodeController.h b/src/lib/component/controller/CodeController.h
index fcb464d2..9729fc29 100644
--- a/src/lib/component/controller/CodeController.h
+++ b/src/lib/component/controller/CodeController.h
@@ -7,12 +7,12 @@
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageActivateAll.h"
 #include "utility/messaging/type/MessageActivateTokens.h"
+#include "utility/messaging/type/MessageChangeFileView.h"
+#include "utility/messaging/type/MessageFlushUpdates.h"
 #include "utility/messaging/type/MessageFocusIn.h"
 #include "utility/messaging/type/MessageFocusOut.h"
 #include "utility/messaging/type/MessageShowErrors.h"
-#include "utility/messaging/type/MessageShowFile.h"
 #include "utility/messaging/type/MessageShowScope.h"
-#include "utility/messaging/type/MessageShowSnippets.h"
 #include "utility/types.h"
 
 #include "component/controller/helper/SnippetMerger.h"
@@ -27,12 +27,12 @@ class CodeController
 	: public Controller
 	, public MessageListener<MessageActivateAll>
 	, public MessageListener<MessageActivateTokens>
+	, public MessageListener<MessageChangeFileView>
+	, public MessageListener<MessageFlushUpdates>
 	, public MessageListener<MessageFocusIn>
 	, public MessageListener<MessageFocusOut>
 	, public MessageListener<MessageShowErrors>
-	, public MessageListener<MessageShowFile>
 	, public MessageListener<MessageShowScope>
-	, public MessageListener<MessageShowSnippets>
 {
 public:
 	CodeController(StorageAccess* storageAccess);
@@ -43,14 +43,15 @@ private:
 
 	virtual void handleMessage(MessageActivateAll* message);
 	virtual void handleMessage(MessageActivateTokens* message);
+	virtual void handleMessage(MessageChangeFileView* message);
+	virtual void handleMessage(MessageFlushUpdates* message);
 	virtual void handleMessage(MessageFocusIn* message);
 	virtual void handleMessage(MessageFocusOut* message);
 	virtual void handleMessage(MessageShowErrors* message);
-	virtual void handleMessage(MessageShowFile* message);
 	virtual void handleMessage(MessageShowScope* message);
-	virtual void handleMessage(MessageShowSnippets* message);
 
 	CodeView* getView();
+	void showContents(MessageBase* message);
 
 	std::vector<CodeView::CodeSnippetParams> getSnippetsForActiveTokenLocations(
 		const TokenLocationCollection* collection, Id declarationId) const;
diff --git a/src/lib/component/controller/UndoRedoController.cpp b/src/lib/component/controller/UndoRedoController.cpp
index f1a5a4ee..fcfb76b1 100644
--- a/src/lib/component/controller/UndoRedoController.cpp
+++ b/src/lib/component/controller/UndoRedoController.cpp
@@ -79,6 +79,12 @@ void UndoRedoController::handleMessage(MessageActivateTokenIds* message)
 	processCommand(command);
 }
 
+void UndoRedoController::handleMessage(MessageChangeFileView* message)
+{
+	Command command(std::make_shared<MessageChangeFileView>(*message), 1);
+	processCommand(command);
+}
+
 void UndoRedoController::handleMessage(MessageDeactivateEdge* message)
 {
 	MessageBase* m = nullptr;
@@ -205,18 +211,6 @@ void UndoRedoController::handleMessage(MessageShowErrors* message)
 	processCommand(command);
 }
 
-void UndoRedoController::handleMessage(MessageShowFile* message)
-{
-	if (m_lastCommand.message && m_lastCommand.message->getType() == message->getType() &&
-		static_cast<MessageShowFile*>(m_lastCommand.message.get())->filePath == message->filePath)
-	{
-		return;
-	}
-
-	Command command(std::make_shared<MessageShowFile>(*message), 1);
-	processCommand(command);
-}
-
 void UndoRedoController::handleMessage(MessageShowScope* message)
 {
 	Command command(std::make_shared<MessageShowScope>(*message), 1);
diff --git a/src/lib/component/controller/UndoRedoController.h b/src/lib/component/controller/UndoRedoController.h
index f465b9d0..862ba723 100644
--- a/src/lib/component/controller/UndoRedoController.h
+++ b/src/lib/component/controller/UndoRedoController.h
@@ -9,6 +9,7 @@
 #include "utility/messaging/type/MessageActivateFile.h"
 #include "utility/messaging/type/MessageActivateNodes.h"
 #include "utility/messaging/type/MessageActivateTokenIds.h"
+#include "utility/messaging/type/MessageChangeFileView.h"
 #include "utility/messaging/type/MessageDeactivateEdge.h"
 #include "utility/messaging/type/MessageGraphNodeBundleSplit.h"
 #include "utility/messaging/type/MessageGraphNodeExpand.h"
@@ -18,7 +19,6 @@
 #include "utility/messaging/type/MessageRefresh.h"
 #include "utility/messaging/type/MessageSearch.h"
 #include "utility/messaging/type/MessageShowErrors.h"
-#include "utility/messaging/type/MessageShowFile.h"
 #include "utility/messaging/type/MessageShowScope.h"
 #include "utility/messaging/type/MessageUndo.h"
 
@@ -34,6 +34,7 @@ class UndoRedoController
 	, public MessageListener<MessageActivateFile>
 	, public MessageListener<MessageActivateNodes>
 	, public MessageListener<MessageActivateTokenIds>
+	, public MessageListener<MessageChangeFileView>
 	, public MessageListener<MessageDeactivateEdge>
 	, public MessageListener<MessageGraphNodeBundleSplit>
 	, public MessageListener<MessageGraphNodeExpand>
@@ -43,7 +44,6 @@ class UndoRedoController
 	, public MessageListener<MessageRefresh>
 	, public MessageListener<MessageSearch>
 	, public MessageListener<MessageShowErrors>
-	, public MessageListener<MessageShowFile>
 	, public MessageListener<MessageShowScope>
 	, public MessageListener<MessageUndo>
 {
@@ -66,6 +66,7 @@ private:
 	virtual void handleMessage(MessageActivateFile* message);
 	virtual void handleMessage(MessageActivateNodes* message);
 	virtual void handleMessage(MessageActivateTokenIds* message);
+	virtual void handleMessage(MessageChangeFileView* message);
 	virtual void handleMessage(MessageDeactivateEdge* message);
 	virtual void handleMessage(MessageGraphNodeBundleSplit* message);
 	virtual void handleMessage(MessageGraphNodeExpand* message);
@@ -75,7 +76,6 @@ private:
 	virtual void handleMessage(MessageRefresh* message);
 	virtual void handleMessage(MessageSearch* message);
 	virtual void handleMessage(MessageShowErrors* message);
-	virtual void handleMessage(MessageShowFile* message);
 	virtual void handleMessage(MessageShowScope* message);
 	virtual void handleMessage(MessageUndo* message);
 
diff --git a/src/lib/component/controller/helper/ActivationTranslator.cpp b/src/lib/component/controller/helper/ActivationTranslator.cpp
index 44c159f9..0c5d2547 100644
--- a/src/lib/component/controller/helper/ActivationTranslator.cpp
+++ b/src/lib/component/controller/helper/ActivationTranslator.cpp
@@ -7,9 +7,9 @@
 #include "utility/messaging/type/MessageActivateNodes.h"
 #include "utility/messaging/type/MessageActivateTokenIds.h"
 #include "utility/messaging/type/MessageActivateTokens.h"
+#include "utility/messaging/type/MessageChangeFileView.h"
 #include "utility/messaging/type/MessageSearch.h"
 #include "utility/messaging/type/MessageShowErrors.h"
-#include "utility/messaging/type/MessageShowFile.h"
 
 ActivationTranslator::ActivationTranslator(StorageAccess* storageAccess)
 	: m_storageAccess(storageAccess)
@@ -58,7 +58,13 @@ std::shared_ptr<MessageActivateTokens> ActivationTranslator::translateMessage(co
 
 	if (fileId == 0)
 	{
-		MessageShowFile msg(message->filePath, true);
+		MessageChangeFileView msg(
+			message->filePath,
+			MessageChangeFileView::FILE_MAXIMIZED,
+			true,
+			false,
+			nullptr
+		);
 		msg.undoRedoType = message->undoRedoType;
 		msg.setKeepContent(message->keepContent());
 		msg.dispatch();
diff --git a/src/lib/component/view/CodeView.h b/src/lib/component/view/CodeView.h
index 55fed815..0a34337d 100644
--- a/src/lib/component/view/CodeView.h
+++ b/src/lib/component/view/CodeView.h
@@ -13,6 +13,13 @@ class CodeController;
 class CodeView: public View
 {
 public:
+	enum FileState
+	{
+		FILE_MINIMIZED,
+		FILE_SNIPPETS,
+		FILE_MAXIMIZED
+	};
+
 	struct CodeSnippetParams
 	{
 		CodeSnippetParams();
@@ -46,16 +53,20 @@ public:
 	virtual void setActiveTokenIds(const std::vector<Id>& activeTokenIds) = 0;
 	virtual void setErrorMessages(const std::vector<std::string>& errorMessages) = 0;
 
-	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets) = 0;
+	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets, const std::vector<Id>& activeTokenIds) = 0;
 	virtual void addCodeSnippets(const std::vector<CodeSnippetParams>& snippets, bool insert) = 0;
 	virtual void showCodeFile(const CodeSnippetParams& params) = 0;
 
-	virtual void showFirstActiveSnippet() = 0;
-	virtual void showActiveTokenIds() = 0;
+	virtual void setFileState(const FilePath filePath, FileState state) = 0;
+
+	virtual void showFirstActiveSnippet(const std::vector<Id>& activeTokenIds) = 0;
+	virtual void showActiveTokenIds(const std::vector<Id>& activeTokenIds) = 0;
 
 	virtual void focusTokenIds(const std::vector<Id>& focusedTokenIds) = 0;
 	virtual void defocusTokenIds() = 0;
 
+	virtual void showContents() = 0;
+
 private:
 	CodeController* getController();
 };
diff --git a/src/lib/utility/messaging/type/MessageChangeFileView.h b/src/lib/utility/messaging/type/MessageChangeFileView.h
new file mode 100644
index 00000000..7bea9cde
--- /dev/null
+++ b/src/lib/utility/messaging/type/MessageChangeFileView.h
@@ -0,0 +1,64 @@
+#ifndef MESSAGE_CHANGE_FILE_VIEW_H
+#define MESSAGE_CHANGE_FILE_VIEW_H
+
+#include "utility/messaging/Message.h"
+#include "utility/types.h"
+
+#include "data/location/TokenLocationFile.h"
+
+class MessageChangeFileView
+	: public Message<MessageChangeFileView>
+{
+public:
+	enum FileState
+	{
+		FILE_MINIMIZED,
+		FILE_SNIPPETS,
+		FILE_MAXIMIZED
+	};
+
+	MessageChangeFileView(
+		const FilePath filePath,
+		FileState state,
+		bool needsData,
+		bool showErrors,
+		std::shared_ptr<TokenLocationFile> locationFile
+	)
+		: filePath(filePath)
+		, state(state)
+		, needsData(needsData)
+		, showErrors(showErrors)
+		, locationFile(locationFile)
+	{
+	}
+
+	static const std::string getStaticType()
+	{
+		return "MessageChangeFileView";
+	}
+
+	virtual void print(std::ostream& os) const
+	{
+		switch (state)
+		{
+		case FILE_MINIMIZED: os << "minimize"; break;
+		case FILE_SNIPPETS: os << "snippets"; break;
+		case FILE_MAXIMIZED: os << "maximize"; break;
+		}
+
+		if (needsData)
+		{
+			os << ", needs data";
+		}
+	}
+
+	FilePath filePath;
+	FileState state;
+
+	bool needsData;
+	bool showErrors;
+
+	std::shared_ptr<TokenLocationFile> locationFile;
+};
+
+#endif // MESSAGE_CHANGE_FILE_VIEW_H
diff --git a/src/lib/utility/messaging/type/MessageShowFile.h b/src/lib/utility/messaging/type/MessageShowFile.h
deleted file mode 100644
index b6b6ca78..00000000
--- a/src/lib/utility/messaging/type/MessageShowFile.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef MESSAGE_SHOW_FILE_H
-#define MESSAGE_SHOW_FILE_H
-
-#include "utility/file/FilePath.h"
-#include "utility/messaging/Message.h"
-#include "utility/types.h"
-
-class MessageShowFile
-	: public Message<MessageShowFile>
-{
-public:
-	MessageShowFile(const FilePath& filePath, bool showErrors)
-		: filePath(filePath)
-		, showErrors(showErrors)
-	{
-	}
-
-	static const std::string getStaticType()
-	{
-		return "MessageShowFile";
-	}
-
-	virtual void print(std::ostream& os) const
-	{
-		os << filePath.str();
-	}
-
-	const FilePath filePath;
-	const bool showErrors;
-};
-
-#endif // MESSAGE_SHOW_FILE_H
diff --git a/src/lib/utility/messaging/type/MessageShowSnippets.h b/src/lib/utility/messaging/type/MessageShowSnippets.h
deleted file mode 100644
index 1f55aeaa..00000000
--- a/src/lib/utility/messaging/type/MessageShowSnippets.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef MESSAGE_SHOW_SNIPPETS_H
-#define MESSAGE_SHOW_SNIPPETS_H
-
-#include "utility/messaging/Message.h"
-#include "utility/types.h"
-
-#include "data/location/TokenLocationFile.h"
-
-class MessageShowSnippets
-	: public Message<MessageShowSnippets>
-{
-public:
-	MessageShowSnippets(std::shared_ptr<TokenLocationFile> locationFile)
-		: locationFile(locationFile)
-	{
-	}
-
-	static const std::string getStaticType()
-	{
-		return "MessageShowSnippets";
-	}
-
-	virtual void print(std::ostream& os) const
-	{
-		os << locationFile->getFilePath().str();
-	}
-
-	std::shared_ptr<TokenLocationFile> locationFile;
-};
-
-#endif // MESSAGE_SHOW_SNIPPETS_H
diff --git a/src/lib_gui/qt/element/QtCodeArea.cpp b/src/lib_gui/qt/element/QtCodeArea.cpp
index f3997877..70ad579f 100644
--- a/src/lib_gui/qt/element/QtCodeArea.cpp
+++ b/src/lib_gui/qt/element/QtCodeArea.cpp
@@ -11,7 +11,6 @@
 
 #include "utility/messaging/type/MessageActivateTokenLocations.h"
 #include "utility/messaging/type/MessageActivateTokenIds.h"
-#include "utility/messaging/type/MessageShowFile.h"
 #include "utility/messaging/type/MessageFocusIn.h"
 #include "utility/messaging/type/MessageFocusOut.h"
 #include "utility/messaging/type/MessageMoveIDECursor.h"
@@ -436,14 +435,6 @@ void QtCodeArea::mouseReleaseEvent(QMouseEvent* event)
 	}
 }
 
-void QtCodeArea::mouseDoubleClickEvent(QMouseEvent* event)
-{
-	if (event->button() == Qt::LeftButton && m_fileWidget->getFilePath().str().size())
-	{
-		MessageShowFile(m_fileWidget->getFilePath().str(), (m_fileWidget->getErrorMessages().size() > 0)).dispatch();
-	}
-}
-
 void QtCodeArea::mouseMoveEvent(QMouseEvent* event)
 {
 	if (m_panningValue != -1)
diff --git a/src/lib_gui/qt/element/QtCodeArea.h b/src/lib_gui/qt/element/QtCodeArea.h
index 984f1241..f2bdcf2c 100644
--- a/src/lib_gui/qt/element/QtCodeArea.h
+++ b/src/lib_gui/qt/element/QtCodeArea.h
@@ -94,7 +94,6 @@ protected:
 	virtual void enterEvent(QEvent* event) Q_DECL_OVERRIDE;
 	virtual void leaveEvent(QEvent* event) Q_DECL_OVERRIDE;
 	virtual void mouseReleaseEvent(QMouseEvent* event) Q_DECL_OVERRIDE;
-	virtual void mouseDoubleClickEvent(QMouseEvent* event) Q_DECL_OVERRIDE;
 	virtual void mousePressEvent(QMouseEvent* event) Q_DECL_OVERRIDE;
 	virtual void mouseMoveEvent(QMouseEvent* event) Q_DECL_OVERRIDE;
 
diff --git a/src/lib_gui/qt/element/QtCodeFile.cpp b/src/lib_gui/qt/element/QtCodeFile.cpp
index 2e0f8749..7030056f 100644
--- a/src/lib_gui/qt/element/QtCodeFile.cpp
+++ b/src/lib_gui/qt/element/QtCodeFile.cpp
@@ -8,8 +8,7 @@
 #include "utility/file/FileSystem.h"
 #include "utility/logging/logging.h"
 #include "utility/messaging/type/MessageActivateFile.h"
-#include "utility/messaging/type/MessageShowFile.h"
-#include "utility/messaging/type/MessageShowSnippets.h"
+#include "utility/messaging/type/MessageChangeFileView.h"
 
 #include "data/location/TokenLocation.h"
 #include "data/location/TokenLocationFile.h"
@@ -23,6 +22,7 @@ QtCodeFile::QtCodeFile(const FilePath& filePath, QtCodeFileList* parent)
 	, m_updateTitleBarFunctor(std::bind(&QtCodeFile::doUpdateTitleBar, this))
 	, m_parent(parent)
 	, m_filePath(filePath)
+	, m_snippetsRequested(false)
 {
 	setObjectName("code_file");
 
@@ -173,7 +173,7 @@ void QtCodeFile::addCodeSnippet(
 			m_fileSnippet->setIsActiveFile(true);
 		}
 
-		clickedMaximizeButton();
+		setMaximized();
 		if (refCount != -1)
 		{
 			updateRefCount(0);
@@ -284,7 +284,7 @@ bool QtCodeFile::openCollapsedActiveSnippet() const
 
 		if (isActiveFile)
 		{
-			MessageShowSnippets(m_locationFile).dispatch();
+			showSnippets();
 			return true;
 		}
 	}
@@ -308,11 +308,74 @@ void QtCodeFile::updateContent()
 void QtCodeFile::setLocationFile(std::shared_ptr<TokenLocationFile> locationFile, int refCount)
 {
 	m_locationFile = locationFile;
-	clickedMinimizeButton();
+	setMinimized();
 
 	updateRefCount(refCount);
 }
 
+void QtCodeFile::setMinimized()
+{
+	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
+	{
+		snippet->hide();
+	}
+
+	if (m_fileSnippet)
+	{
+		m_fileSnippet->hide();
+	}
+
+	m_minimizeButton->setEnabled(false);
+	if (m_snippets.size() || m_locationFile)
+	{
+		m_snippetButton->setEnabled(true);
+	}
+	m_maximizeButton->setEnabled(true);
+
+	m_minimizePlaceholder->show();
+}
+
+void QtCodeFile::setSnippets()
+{
+	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
+	{
+		snippet->show();
+	}
+
+	if (m_fileSnippet)
+	{
+		m_fileSnippet->hide();
+	}
+
+	m_minimizeButton->setEnabled(true);
+	m_snippetButton->setEnabled(false);
+	m_maximizeButton->setEnabled(true);
+
+	m_minimizePlaceholder->hide();
+}
+
+void QtCodeFile::setMaximized()
+{
+	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
+	{
+		snippet->hide();
+	}
+
+	if (m_fileSnippet)
+	{
+		m_fileSnippet->show();
+	}
+
+	m_minimizeButton->setEnabled(true);
+	if (m_snippets.size())
+	{
+		m_snippetButton->setEnabled(true);
+	}
+	m_maximizeButton->setEnabled(false);
+
+	m_minimizePlaceholder->hide();
+}
+
 void QtCodeFile::clickedTitleBar()
 {
 	if (m_minimizeButton->isEnabled())
@@ -334,77 +397,57 @@ void QtCodeFile::clickedTitle()
 	MessageActivateFile(m_filePath).dispatch();
 }
 
-void QtCodeFile::clickedMinimizeButton()
+void QtCodeFile::clickedMinimizeButton() const
 {
-	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
-	{
-		snippet->hide();
-	}
-
-	if (m_fileSnippet)
-	{
-		m_fileSnippet->hide();
-	}
-
-	m_minimizeButton->setEnabled(false);
-	if (m_snippets.size() || m_locationFile)
-	{
-		m_snippetButton->setEnabled(true);
-	}
-	m_maximizeButton->setEnabled(true);
-
-	m_minimizePlaceholder->show();
+	MessageChangeFileView(
+		m_filePath,
+		MessageChangeFileView::FILE_MINIMIZED,
+		false,
+		false,
+		nullptr
+	).dispatch();
 }
 
-void QtCodeFile::clickedSnippetButton()
+void QtCodeFile::clickedSnippetButton() const
 {
-	if (m_locationFile)
+	MessageChangeFileView(
+		m_filePath,
+		MessageChangeFileView::FILE_SNIPPETS,
+		(m_locationFile != nullptr),
+		false,
+		m_locationFile
+	).dispatch();
+}
+
+void QtCodeFile::clickedMaximizeButton() const
+{
+	MessageChangeFileView(
+		m_filePath,
+		MessageChangeFileView::FILE_MAXIMIZED,
+		(m_fileSnippet == nullptr),
+		false,
+		nullptr
+	).dispatch();
+}
+
+void QtCodeFile::showSnippets() const
+{
+	if (m_snippetsRequested)
 	{
-		MessageShowSnippets(m_locationFile).dispatch();
 		return;
 	}
 
-	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
-	{
-		snippet->show();
-	}
+	m_snippetsRequested = true;
 
-	if (m_fileSnippet)
-	{
-		m_fileSnippet->hide();
-	}
-
-	m_minimizeButton->setEnabled(true);
-	m_snippetButton->setEnabled(false);
-	m_maximizeButton->setEnabled(true);
-
-	m_minimizePlaceholder->hide();
-}
-
-void QtCodeFile::clickedMaximizeButton()
-{
-	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
-	{
-		snippet->hide();
-	}
-
-	if (m_fileSnippet)
-	{
-		m_fileSnippet->show();
-	}
-	else
-	{
-		MessageShowFile(m_filePath, (getErrorMessages().size() > 0)).dispatch();
-	}
-
-	m_minimizeButton->setEnabled(true);
-	if (m_snippets.size())
-	{
-		m_snippetButton->setEnabled(true);
-	}
-	m_maximizeButton->setEnabled(false);
-
-	m_minimizePlaceholder->hide();
+	MessageChangeFileView msg(
+		m_filePath,
+		MessageChangeFileView::FILE_SNIPPETS,
+		(m_locationFile != nullptr),
+		false,
+		m_locationFile
+	);
+	msg.undoRedoType = MessageBase::UNDOTYPE_IGNORE;
+	msg.dispatch();
 }
 
 void QtCodeFile::handleMessage(MessageWindowFocus* message)
@@ -431,7 +474,7 @@ void QtCodeFile::updateSnippets()
 	m_snippets.front()->setProperty("isFirst", true);
 	m_snippets.back()->setProperty("isLast", true);
 
-	clickedSnippetButton();
+	setSnippets();
 }
 
 void QtCodeFile::updateRefCount(int refCount)
diff --git a/src/lib_gui/qt/element/QtCodeFile.h b/src/lib_gui/qt/element/QtCodeFile.h
index ee4795d8..341677fc 100644
--- a/src/lib_gui/qt/element/QtCodeFile.h
+++ b/src/lib_gui/qt/element/QtCodeFile.h
@@ -65,14 +65,20 @@ public:
 
 	void setLocationFile(std::shared_ptr<TokenLocationFile> locationFile, int refCount);
 
+	void setMinimized();
+	void setSnippets();
+	void setMaximized();
+
+	void showSnippets() const;
+
 public slots:
-	void clickedSnippetButton();
+	void clickedMinimizeButton() const;
+	void clickedSnippetButton() const;
+	void clickedMaximizeButton() const;
 
 private slots:
 	void clickedTitleBar();
 	void clickedTitle();
-	void clickedMinimizeButton();
-	void clickedMaximizeButton();
 
 private:
 	virtual void handleMessage(MessageWindowFocus* message);
@@ -101,7 +107,9 @@ private:
 
 	const FilePath m_filePath;
 	TimePoint m_modificationTime;
+
 	std::shared_ptr<TokenLocationFile> m_locationFile;
+	mutable bool m_snippetsRequested;
 };
 
 #endif // QT_CODE_FILE_H
diff --git a/src/lib_gui/qt/element/QtCodeFileList.cpp b/src/lib_gui/qt/element/QtCodeFileList.cpp
index 9643fa71..f9f742e4 100644
--- a/src/lib_gui/qt/element/QtCodeFileList.cpp
+++ b/src/lib_gui/qt/element/QtCodeFileList.cpp
@@ -50,7 +50,7 @@ void QtCodeFileList::addCodeSnippet(
 	TimePoint modificationTime,
 	bool insert
 ){
-	QtCodeFile* file = getFile(locationFile);
+	QtCodeFile* file = getFile(locationFile->getFilePath());
 
 	if (insert)
 	{
@@ -66,7 +66,7 @@ void QtCodeFileList::addCodeSnippet(
 
 void QtCodeFileList::addFile(std::shared_ptr<TokenLocationFile> locationFile, int refCount, TimePoint modificationTime)
 {
-	QtCodeFile* file = getFile(locationFile);
+	QtCodeFile* file = getFile(locationFile->getFilePath());
 	file->setLocationFile(locationFile, refCount);
 	file->setModificationTime(modificationTime);
 }
@@ -124,7 +124,7 @@ bool QtCodeFileList::scrollToFirstActiveSnippet()
 		{
 			if (!snippet->isVisible())
 			{
-				file->clickedSnippetButton();
+				file->showSnippets();
 			}
 
 			emit shouldScrollToSnippet(snippet);
@@ -158,14 +158,48 @@ void QtCodeFileList::defocusTokenIds()
 	updateFiles();
 }
 
+void QtCodeFileList::setFileMinimized(const FilePath path)
+{
+	QtCodeFile* file = getFile(path);
+	if (file)
+	{
+		file->setMinimized();
+	}
+}
+
+void QtCodeFileList::setFileSnippets(const FilePath path)
+{
+	QtCodeFile* file = getFile(path);
+	if (file)
+	{
+		file->setSnippets();
+	}
+}
+
+void QtCodeFileList::setFileMaximized(const FilePath path)
+{
+	QtCodeFile* file = getFile(path);
+	if (file)
+	{
+		file->setMaximized();
+	}
+}
+
+void QtCodeFileList::showContents()
+{
+	for (std::shared_ptr<QtCodeFile> filePtr : m_files)
+	{
+		filePtr->show();
+	}
+}
+
 void QtCodeFileList::scrollToSnippet(QtCodeSnippet* snippet)
 {
 	this->ensureWidgetVisibleAnimated(snippet, snippet->getFirstActiveLineRect());
 }
 
-QtCodeFile* QtCodeFileList::getFile(std::shared_ptr<TokenLocationFile> locationFile)
+QtCodeFile* QtCodeFileList::getFile(const FilePath filePath)
 {
-	FilePath filePath = locationFile->getFilePath();
 	QtCodeFile* file = nullptr;
 
 	for (std::shared_ptr<QtCodeFile> filePtr : m_files)
@@ -179,11 +213,13 @@ QtCodeFile* QtCodeFileList::getFile(std::shared_ptr<TokenLocationFile> locationF
 
 	if (!file)
 	{
-		std::shared_ptr<QtCodeFile> filePtr = std::make_shared<QtCodeFile>(locationFile->getFilePath(), this);
+		std::shared_ptr<QtCodeFile> filePtr = std::make_shared<QtCodeFile>(filePath, this);
 		m_files.push_back(filePtr);
 
 		file = filePtr.get();
 		m_frame->layout()->addWidget(file);
+
+		file->hide();
 	}
 
 	return file;
diff --git a/src/lib_gui/qt/element/QtCodeFileList.h b/src/lib_gui/qt/element/QtCodeFileList.h
index 0783c655..09472b9b 100644
--- a/src/lib_gui/qt/element/QtCodeFileList.h
+++ b/src/lib_gui/qt/element/QtCodeFileList.h
@@ -7,6 +7,7 @@
 #include <QFrame>
 #include <QScrollArea>
 
+#include "utility/file/FilePath.h"
 #include "utility/TimePoint.h"
 #include "utility/types.h"
 
@@ -60,11 +61,17 @@ public:
 	void focusTokenIds(const std::vector<Id>& focusedTokenIds);
 	void defocusTokenIds();
 
+	void setFileMinimized(const FilePath path);
+	void setFileSnippets(const FilePath path);
+	void setFileMaximized(const FilePath path);
+
+	void showContents();
+
 private slots:
 	void scrollToSnippet(QtCodeSnippet* snippet);
 
 private:
-	QtCodeFile* getFile(std::shared_ptr<TokenLocationFile> locationFile);
+	QtCodeFile* getFile(const FilePath filePath);
 
 	void updateFiles();
 
diff --git a/src/lib_gui/qt/element/QtCodeSnippet.cpp b/src/lib_gui/qt/element/QtCodeSnippet.cpp
index ea996f90..fea80d53 100644
--- a/src/lib_gui/qt/element/QtCodeSnippet.cpp
+++ b/src/lib_gui/qt/element/QtCodeSnippet.cpp
@@ -5,7 +5,6 @@
 #include <QPushButton>
 
 #include "utility/messaging/type/MessageShowScope.h"
-#include "utility/messaging/type/MessageShowFile.h"
 #include "utility/text/TextAccess.h"
 
 #include "data/location/TokenLocationFile.h"
@@ -160,11 +159,11 @@ std::string QtCodeSnippet::getCode() const
 
 void QtCodeSnippet::contextMenuEvent(QContextMenuEvent* event)
 {
-	QMenu menu(this);
-	menu.addAction(new QAction("Bar", this));
-	menu.addAction(new QAction("Brew Tea", this));
-	menu.addAction(new QAction("Translate", this));
-	menu.exec(event->globalPos());
+	// QMenu menu(this);
+	// menu.addAction(new QAction("Bar", this));
+	// menu.addAction(new QAction("Brew Tea", this));
+	// menu.addAction(new QAction("Translate", this));
+	// menu.exec(event->globalPos());
 }
 
 void QtCodeSnippet::clickedTitle()
@@ -175,7 +174,7 @@ void QtCodeSnippet::clickedTitle()
 	}
 	else
 	{
-		MessageShowFile(FilePath(m_titleString), (dynamic_cast<QtCodeFile*>(parent())->getErrorMessages().size() > 0)).dispatch();
+		dynamic_cast<QtCodeFile*>(parent())->clickedMaximizeButton();
 	}
 }
 
diff --git a/src/lib_gui/qt/view/QtCodeView.cpp b/src/lib_gui/qt/view/QtCodeView.cpp
index 9209789c..e02a12f3 100644
--- a/src/lib_gui/qt/view/QtCodeView.cpp
+++ b/src/lib_gui/qt/view/QtCodeView.cpp
@@ -12,13 +12,15 @@
 QtCodeView::QtCodeView(ViewLayout* viewLayout)
 	: CodeView(viewLayout)
 	, m_refreshViewFunctor(std::bind(&QtCodeView::doRefreshView, this))
-	, m_showCodeSnippetsFunctor(std::bind(&QtCodeView::doShowCodeSnippets, this, std::placeholders::_1))
+	, m_showCodeSnippetsFunctor(std::bind(&QtCodeView::doShowCodeSnippets, this, std::placeholders::_1, std::placeholders::_2))
 	, m_addCodeSnippetsFunctor(std::bind(&QtCodeView::doAddCodeSnippets, this, std::placeholders::_1, std::placeholders::_2))
 	, m_showCodeFileFunctor(std::bind(&QtCodeView::doShowCodeFile, this, std::placeholders::_1))
-	, m_doShowFirstActiveSnippetFunctor(std::bind(&QtCodeView::doShowFirstActiveSnippet, this))
-	, m_doShowActiveTokenIdsFunctor(std::bind(&QtCodeView::doShowActiveTokenIds, this))
+	, m_setFileStateFunctor(std::bind(&QtCodeView::doSetFileState, this, std::placeholders::_1, std::placeholders::_2))
+	, m_doShowFirstActiveSnippetFunctor(std::bind(&QtCodeView::doShowFirstActiveSnippet, this, std::placeholders::_1))
+	, m_doShowActiveTokenIdsFunctor(std::bind(&QtCodeView::doShowActiveTokenIds, this, std::placeholders::_1))
 	, m_focusTokenIdsFunctor(std::bind(&QtCodeView::doFocusTokenIds, this, std::placeholders::_1))
 	, m_defocusTokenIdsFunctor(std::bind(&QtCodeView::doDefocusTokenIds, this))
+	, m_showContentsFunctor(std::bind(&QtCodeView::doShowContents, this))
 	, m_isExpanding(false)
 {
 	m_widget = new QtCodeFileList();
@@ -53,9 +55,9 @@ void QtCodeView::setErrorMessages(const std::vector<std::string>& errorMessages)
 	m_errorMessages = errorMessages;
 }
 
-void QtCodeView::showCodeSnippets(const std::vector<CodeSnippetParams>& snippets)
+void QtCodeView::showCodeSnippets(const std::vector<CodeSnippetParams>& snippets, const std::vector<Id>& activeTokenIds)
 {
-	m_showCodeSnippetsFunctor(snippets);
+	m_showCodeSnippetsFunctor(snippets, activeTokenIds);
 }
 
 void QtCodeView::addCodeSnippets(const std::vector<CodeSnippetParams>& snippets, bool insert)
@@ -68,14 +70,19 @@ void QtCodeView::showCodeFile(const CodeSnippetParams& params)
 	m_showCodeFileFunctor(params);
 }
 
-void QtCodeView::showFirstActiveSnippet()
+void QtCodeView::setFileState(const FilePath filePath, FileState state)
 {
-	m_doShowFirstActiveSnippetFunctor();
+	m_setFileStateFunctor(filePath, state);
 }
 
-void QtCodeView::showActiveTokenIds()
+void QtCodeView::showFirstActiveSnippet(const std::vector<Id>& activeTokenIds)
 {
-	m_doShowActiveTokenIdsFunctor();
+	m_doShowFirstActiveSnippetFunctor(activeTokenIds);
+}
+
+void QtCodeView::showActiveTokenIds(const std::vector<Id>& activeTokenIds)
+{
+	m_doShowActiveTokenIdsFunctor(activeTokenIds);
 }
 
 void QtCodeView::focusTokenIds(const std::vector<Id>& focusedTokenIds)
@@ -88,6 +95,11 @@ void QtCodeView::defocusTokenIds()
 	m_defocusTokenIdsFunctor();
 }
 
+void QtCodeView::showContents()
+{
+	m_showContentsFunctor();
+}
+
 void QtCodeView::doRefreshView()
 {
 	setStyleSheet();
@@ -95,11 +107,11 @@ void QtCodeView::doRefreshView()
 	QtCodeArea::clearAnnotationColors();
 }
 
-void QtCodeView::doShowCodeSnippets(const std::vector<CodeSnippetParams>& snippets)
+void QtCodeView::doShowCodeSnippets(const std::vector<CodeSnippetParams>& snippets, const std::vector<Id>& activeTokenIds)
 {
 	m_widget->clearCodeSnippets();
 
-	m_widget->setActiveTokenIds(m_activeTokenIds);
+	m_widget->setActiveTokenIds(activeTokenIds);
 	m_widget->setErrorMessages(m_errorMessages);
 
 	for (const CodeSnippetParams& params : snippets)
@@ -155,9 +167,25 @@ void QtCodeView::doShowCodeFile(const CodeSnippetParams& params)
 	m_widget->addCodeSnippet(1, params.title, 0, params.code, params.locationFile, -1, params.modificationTime);
 }
 
-void QtCodeView::doShowFirstActiveSnippet()
+void QtCodeView::doSetFileState(const FilePath filePath, FileState state)
 {
-	m_widget->setActiveTokenIds(m_activeTokenIds);
+	switch (state)
+	{
+	case FILE_MINIMIZED:
+		m_widget->setFileMinimized(filePath);
+		break;
+	case FILE_SNIPPETS:
+		m_widget->setFileSnippets(filePath);
+		break;
+	case FILE_MAXIMIZED:
+		m_widget->setFileMaximized(filePath);
+		break;
+	}
+}
+
+void QtCodeView::doShowFirstActiveSnippet(const std::vector<Id>& activeTokenIds)
+{
+	m_widget->setActiveTokenIds(activeTokenIds);
 
 	if (!m_widget->scrollToFirstActiveSnippet())
 	{
@@ -166,9 +194,9 @@ void QtCodeView::doShowFirstActiveSnippet()
 	}
 }
 
-void QtCodeView::doShowActiveTokenIds()
+void QtCodeView::doShowActiveTokenIds(const std::vector<Id>& activeTokenIds)
 {
-	m_widget->setActiveTokenIds(m_activeTokenIds);
+	m_widget->setActiveTokenIds(activeTokenIds);
 	m_widget->showActiveTokenIds();
 }
 
@@ -182,6 +210,11 @@ void QtCodeView::doDefocusTokenIds()
 	m_widget->defocusTokenIds();
 }
 
+void QtCodeView::doShowContents() const
+{
+	m_widget->showContents();
+}
+
 void QtCodeView::setStyleSheet() const
 {
 	utility::setWidgetBackgroundColor(m_widget, ColorScheme::getInstance()->getColor("code/background"));
diff --git a/src/lib_gui/qt/view/QtCodeView.h b/src/lib_gui/qt/view/QtCodeView.h
index 22ee5193..7ad62c1b 100644
--- a/src/lib_gui/qt/view/QtCodeView.h
+++ b/src/lib_gui/qt/view/QtCodeView.h
@@ -29,39 +29,49 @@ public:
 	virtual void setActiveTokenIds(const std::vector<Id>& activeTokenIds);
 	virtual void setErrorMessages(const std::vector<std::string>& errorMessages);
 
-	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets);
+	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets, const std::vector<Id>& activeTokenIds);
 	virtual void addCodeSnippets(const std::vector<CodeSnippetParams>& snippets, bool insert);
 	virtual void showCodeFile(const CodeSnippetParams& params);
 
-	virtual void showFirstActiveSnippet();
-	virtual void showActiveTokenIds();
+	virtual void setFileState(const FilePath filePath, FileState state);
+
+	virtual void showFirstActiveSnippet(const std::vector<Id>& activeTokenIds);
+	virtual void showActiveTokenIds(const std::vector<Id>& activeTokenIds);
 
 	virtual void focusTokenIds(const std::vector<Id>& focusedTokenIds);
 	virtual void defocusTokenIds();
 
+	virtual void showContents();
+
 private:
 	void doRefreshView();
 
-	void doShowCodeSnippets(const std::vector<CodeSnippetParams>& snippets);
+	void doShowCodeSnippets(const std::vector<CodeSnippetParams>& snippets, const std::vector<Id>& activeTokenIds);
 	void doAddCodeSnippets(const std::vector<CodeSnippetParams>& snippets, bool insert);
 	void doShowCodeFile(const CodeSnippetParams& params);
 
-	void doShowFirstActiveSnippet();
-	void doShowActiveTokenIds();
+	void doSetFileState(const FilePath filePath, FileState state);
+
+	void doShowFirstActiveSnippet(const std::vector<Id>& activeTokenIds);
+	void doShowActiveTokenIds(const std::vector<Id>& activeTokenIds);
 
 	void doFocusTokenIds(const std::vector<Id>& focusedTokenIds);
 	void doDefocusTokenIds();
 
+	void doShowContents() const;
+
 	void setStyleSheet() const;
 
 	QtThreadedFunctor<> m_refreshViewFunctor;
-	QtThreadedFunctor<const std::vector<CodeSnippetParams>&> m_showCodeSnippetsFunctor;
+	QtThreadedFunctor<const std::vector<CodeSnippetParams>&, const std::vector<Id>&> m_showCodeSnippetsFunctor;
 	QtThreadedFunctor<const std::vector<CodeSnippetParams>&, bool> m_addCodeSnippetsFunctor;
 	QtThreadedFunctor<const CodeSnippetParams&> m_showCodeFileFunctor;
-	QtThreadedFunctor<> m_doShowFirstActiveSnippetFunctor;
-	QtThreadedFunctor<> m_doShowActiveTokenIdsFunctor;
+	QtThreadedFunctor<const FilePath, FileState> m_setFileStateFunctor;
+	QtThreadedFunctor<const std::vector<Id>&> m_doShowFirstActiveSnippetFunctor;
+	QtThreadedFunctor<const std::vector<Id>&> m_doShowActiveTokenIdsFunctor;
 	QtThreadedFunctor<const std::vector<Id>&> m_focusTokenIdsFunctor;
 	QtThreadedFunctor<> m_defocusTokenIdsFunctor;
+	QtThreadedFunctor<> m_showContentsFunctor;
 
 	QtCodeFileList* m_widget;