Put code for moving links to a different section into Menu class

This is another step in bringing the management of the links on the
file system into a single location (the Menu class).

Fixes were applied as well. For example a directory for the new section
is now created if it did not exist yet.

src/gmenu2x.cpp

@@ -900,11 +900,7 @@ void GMenu2X::editLink() {
 	LinkApp *linkApp = menu->selLinkApp();
 	if (!linkApp) return;
 
-	vector<string> pathV;
+	string oldSection = menu->selSection();
-	split(pathV,linkApp->getFile(),"/");
-	string oldSection = "";
-	if (pathV.size()>1)
-		oldSection = pathV[pathV.size()-2];
 	string newSection = oldSection;
 
 	string linkTitle = linkApp->getTitle();
@@ -978,29 +974,13 @@ void GMenu2X::editLink() {
 		linkApp->setSelectorDir(linkSelDir);
 		linkApp->setSelectorBrowser(linkSelBrowser);
 		linkApp->setClock(linkClock);
-
-		INFO("New Section: '%s'\n", newSection.c_str());
-
-		//if section changed move file and update link->file
-		if (oldSection!=newSection) {
-			vector<string>::const_iterator newSectionIndex = find(menu->getSections().begin(),menu->getSections().end(),newSection);
-			if (newSectionIndex==menu->getSections().end()) return;
-			string newFileName = "sections/"+newSection+"/"+linkTitle;
-			uint x=2;
-			while (fileExists(newFileName)) {
-				string id = "";
-				stringstream ss; ss << x; ss >> id;
-				newFileName = "sections/"+newSection+"/"+linkTitle+id;
-				x++;
-			}
-			rename(linkApp->getFile().c_str(),newFileName.c_str());
-			linkApp->setFile(newFileName);
-
-			INFO("New section index: %zd.\n", newSectionIndex - menu->getSections().begin());
-
-			menu->linkChangeSection(menu->selLinkIndex(), menu->selSectionIndex(), newSectionIndex - menu->getSections().begin());
-		}
 		linkApp->save();
+
+		if (oldSection != newSection) {
+			INFO("Changed section: '%s' -> '%s'\n",
+					oldSection.c_str(), newSection.c_str());
+			menu->moveSelectedLink(newSection);
+		}
 	}
 }
 

src/menu.cpp

@@ -522,25 +522,54 @@ void Menu::deleteSelectedSection()
 	}
 }
 
-bool Menu::linkChangeSection(uint linkIndex, uint oldSectionIndex, uint newSectionIndex) {
+bool Menu::moveSelectedLink(string const& newSection)
-	// Fetch sections.
+{
-	auto oldSectionLinks = sectionLinks(oldSectionIndex);
+	LinkApp *linkApp = selLinkApp();
-	if (!oldSectionLinks) return false;
+	if (!linkApp) {
-	auto newSectionLinks = sectionLinks(newSectionIndex);
+		return false;
-	if (!newSectionLinks) return false;
+	}
 
-	// Find link in old section.
+	// Note: Get new index first, since it might move the selected index.
-	if (linkIndex >= oldSectionLinks->size()) return false;
+	auto const newSectionIndex = sectionNamed(newSection);
-	auto it = oldSectionLinks->begin() + linkIndex;
+	auto const oldSectionIndex = iSection;
+
+	string const& file = linkApp->getFile();
+	string linkTitle = file.substr(file.rfind('/') + 1);
+
+	string sectionDir = createSectionDir(newSection);
+	if (sectionDir.empty()) {
+		return false;
+	}
+
+	string newFileName = sectionDir + "/" + linkTitle;
+	unsigned int x = 2;
+	while (fileExists(newFileName)) {
+		string id = "";
+		stringstream ss; ss << x; ss >> id;
+		newFileName = sectionDir + "/" + linkTitle + id;
+		x++;
+	}
+
+	if (rename(file.c_str(), newFileName.c_str())) {
+		WARNING("Link file move from '%s' to '%s' failed: %s\n",
+				file.c_str(), newFileName.c_str(), strerror(errno));
+		return false;
+	}
+	linkApp->setFile(newFileName);
+
+	// Fetch sections.
+	auto& newSectionLinks = links[newSectionIndex];
+	auto& oldSectionLinks = links[oldSectionIndex];
 
 	// Move link.
+	auto it = oldSectionLinks.begin() + iLink;
 	auto link = it->release();
-	oldSectionLinks->erase(it);
+	oldSectionLinks.erase(it);
-	newSectionLinks->emplace_back(link);
+	newSectionLinks.emplace_back(link);
 
 	// Select the same link in the new section.
 	setSectionIndex(newSectionIndex);
-	setLinkIndex(newSectionLinks->size() - 1);
+	setLinkIndex(newSectionLinks.size() - 1);
 
 	return true;
 }

src/menu.h

@@ -142,6 +142,8 @@ public:
 	void deleteSelectedLink();
 	void deleteSelectedSection();
 
+	bool moveSelectedLink(std::string const& newSection);
+
 	void skinUpdated();
 	void orderLinks();
 
@@ -150,8 +152,6 @@ public:
 	virtual void paint(Surface &s);
 	virtual bool handleButtonPress(InputManager::Button button);
 
-	bool linkChangeSection(uint linkIndex, uint oldSectionIndex, uint newSectionIndex);
-
 	int selLinkIndex();
 	Link *selLink();
 	LinkApp *selLinkApp();