Opening recent files wasn't opening with right encoding (Windows)

Confusion between native and internal path representation (i.e.
backslashes). File names should always be "portable" internally.

Reviewed-by: Robert Loehning

src/plugins/coreplugin/filemanager.cpp

@@ -159,25 +159,7 @@ FileManager::FileManager(QMainWindow *mw)
     connect(core, SIGNAL(contextChanged(Core::IContext*,Core::Context)),
         this, SLOT(syncWithEditor(Core::IContext*)));
 
-    const QSettings *s = core->settings();
-    d->m_recentFiles = s->value(QLatin1String(settingsGroupC) + QLatin1Char('/') + QLatin1String(filesKeyC), QStringList()).toStringList();
-    for (QStringList::iterator it = d->m_recentFiles.begin(); it != d->m_recentFiles.end(); ) {
-        if (QFileInfo(*it).isFile()) {
-            ++it;
-        } else {
-            it = d->m_recentFiles.erase(it);
-        }
-    }
-    const QString directoryGroup = QLatin1String(directoryGroupC) + QLatin1Char('/');
-    const QString settingsProjectDir = s->value(directoryGroup + QLatin1String(projectDirectoryKeyC),
-                                       QString()).toString();
-    if (!settingsProjectDir.isEmpty() && QFileInfo(settingsProjectDir).isDir()) {
-        d->m_projectsDirectory = settingsProjectDir;
-    } else {
-        d->m_projectsDirectory = Utils::PathChooser::homePath();
-    }
-    d->m_useProjectsDirectory = s->value(directoryGroup + QLatin1String(useProjectDirectoryKeyC),
-                                         d->m_useProjectsDirectory).toBool();
+    readSettings();
 }
 
 FileManager::~FileManager()
@@ -994,11 +976,16 @@ void FileManager::addToRecentFiles(const QString &fileName)
 {
     if (fileName.isEmpty())
         return;
-    QString prettyFileName(QDir::toNativeSeparators(fileName));
-    d->m_recentFiles.removeAll(prettyFileName);
+    QString unifiedForm(fixFileName(fileName));
+    QMutableStringListIterator it(d->m_recentFiles);
+    while (it.hasNext()) {
+        QString recentUnifiedForm(fixFileName(it.next()));
+        if (unifiedForm == recentUnifiedForm)
+            it.remove();
+    }
     if (d->m_recentFiles.count() > d->m_maxRecentFiles)
         d->m_recentFiles.removeLast();
-    d->m_recentFiles.prepend(prettyFileName);
+    d->m_recentFiles.prepend(fileName);
 }
 
 /*!
@@ -1011,7 +998,7 @@ QStringList FileManager::recentFiles() const
     return d->m_recentFiles;
 }
 
-void FileManager::saveRecentFiles()
+void FileManager::saveSettings()
 {
     QSettings *s = Core::ICore::instance()->settings();
     s->beginGroup(QLatin1String(settingsGroupC));
@@ -1023,6 +1010,29 @@ void FileManager::saveRecentFiles()
     s->endGroup();
 }
 
+void FileManager::readSettings()
+{
+    const QSettings *s = Core::ICore::instance()->settings();
+    d->m_recentFiles.clear();
+    QStringList recentFiles = s->value(QLatin1String(settingsGroupC) + QLatin1Char('/') + QLatin1String(filesKeyC), QStringList()).toStringList();
+    // clean non-existing files
+    foreach (const QString &file, recentFiles) {
+        if (QFileInfo(file).isFile())
+            d->m_recentFiles.append(QDir::fromNativeSeparators(file)); // from native to guard against old settings
+    }
+
+    const QString directoryGroup = QLatin1String(directoryGroupC) + QLatin1Char('/');
+    const QString settingsProjectDir = s->value(directoryGroup + QLatin1String(projectDirectoryKeyC),
+                                       QString()).toString();
+    if (!settingsProjectDir.isEmpty() && QFileInfo(settingsProjectDir).isDir()) {
+        d->m_projectsDirectory = settingsProjectDir;
+    } else {
+        d->m_projectsDirectory = Utils::PathChooser::homePath();
+    }
+    d->m_useProjectsDirectory = s->value(directoryGroup + QLatin1String(useProjectDirectoryKeyC),
+                                         d->m_useProjectsDirectory).toBool();
+}
+
 /*!
 
   The current file is e.g. the file currently opened when an editor is active,

src/plugins/coreplugin/filemanager.h

@@ -74,8 +74,7 @@ public:
     // recent files
     void addToRecentFiles(const QString &fileName);
     QStringList recentFiles() const;
-    void saveRecentFiles();
-
+    void saveSettings();
 
     // current file
     void setCurrentFile(const QString &filePath);
@@ -133,6 +132,7 @@ private slots:
     void syncWithEditor(Core::IContext *context);
 
 private:
+    void readSettings();
     void dump();
     void addFileInfo(IFile *file);
     void removeFileInfo(IFile *file);

src/plugins/coreplugin/mainwindow.cpp

@@ -82,6 +82,7 @@
 #include <QtCore/QTimer>
 #include <QtCore/QtPlugin>
 #include <QtCore/QUrl>
+#include <QtCore/QDir>
 
 #include <QtGui/QApplication>
 #include <QtGui/QCloseEvent>
@@ -1208,7 +1209,7 @@ void MainWindow::writeSettings()
 
     m_settings->endGroup();
 
-    m_fileManager->saveRecentFiles();
+    m_fileManager->saveSettings();
     m_actionManager->saveSettings(m_settings);
     m_editorManager->saveSettings();
     m_navigationWidget->saveSettings(m_settings);
@@ -1271,7 +1272,7 @@ void MainWindow::aboutToShowRecentFiles()
     foreach (const QString &fileName, m_fileManager->recentFiles()) {
         hasRecentFiles = true;
         QAction *action = aci->menu()->addAction(
-                    Utils::withTildeHomePath(fileName));
+                    QDir::toNativeSeparators(Utils::withTildeHomePath(fileName)));
         action->setData(fileName);
         connect(action, SIGNAL(triggered()), this, SLOT(openRecentFile()));
     }