ui: scroll to code snippet containing clicked edge

This change scrolls animated to the snippet representing the clicked edge instead of showing only this code snippet.

src/lib/component/controller/CodeController.cpp

@@ -52,6 +52,12 @@ void CodeController::handleMessage(MessageActivateTokens* message)
 	view->setActiveTokenIds(activeTokenIds);
 	view->setErrorMessages(std::vector<std::string>());
 
+	if (message->isEdge)
+	{
+		view->scrollToFirstActiveSnippet();
+		return;
+	}
+
 	TokenLocationCollection collection = m_storageAccess->getTokenLocationsForTokenIds(activeTokenIds);
 	view->showCodeSnippets(getSnippetsForActiveTokenLocations(collection, declarationId));
 

src/lib/component/view/CodeView.h

@@ -43,6 +43,8 @@ public:
 	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets) = 0;
 	virtual void showCodeFile(const CodeSnippetParams& params) = 0;
 
+	virtual void scrollToFirstActiveSnippet() = 0;
+
 	virtual void focusToken(const Id tokenId) = 0;
 	virtual void defocusToken() = 0;