Streamline the file manager quite a bit by putting the long-lived checks in a seperate thread. This speeds up the loading of a directory quite a bit.

1 files changed, 74 insertions, 0 deletions

diff --git a/lumina-fm/BackgroundWorker.cpp b/lumina-fm/BackgroundWorker.cpp
new file mode 100644
index 00000000..1e6ef28d
--- /dev/null
+++ b/lumina-fm/BackgroundWorker.cpp
@@ -0,0 +1,74 @@
+#include "BackgroundWorker.h"
+
+#include <LuminaXDG.h>
+#include <Phonon/BackendCapabilities>
+#include <QImageReader>
+
+BackgroundWorker::BackgroundWorker() : QObject(){
+
+}
+
+BackgroundWorker::~BackgroundWorker(){
+	
+}
+
+void BackgroundWorker::startDirChecks(QString path){
+  QDir dir(path);
+  //First check for image files
+  if(imgFilter.isEmpty()){
+    //Initial Run - load supported image extensions
+    QList<QByteArray> fmt = QImageReader::supportedImageFormats();
+    for(int i=0; i<fmt.length(); i++){ imgFilter << "*."+QString(fmt[i]).toLower(); }
+    qDebug() << "Supported Image Formats:" << imgFilter;
+  }
+  QStringList pics = dir.entryList(imgFilter, QDir::Files | QDir::NoDotAndDotDot, QDir::Name | QDir::IgnoreCase);	
+  if(!pics.isEmpty() && !imgFilter.isEmpty()){ emit ImagesAvailable(pics); }
+	  
+  //Now check for multimedia files
+  if(multiFilter.isEmpty()){
+    //Initial Run - load supported multimedia extensions
+    QStringList mimes = Phonon::BackendCapabilities::availableMimeTypes();
+    mimes = mimes.filter("audio/") + mimes.filter("video/");
+    for(int i=0; i<mimes.length(); i++){
+      multiFilter << LXDG::findFilesForMime(mimes[i]);
+    }
+    multiFilter.removeDuplicates();
+    qDebug() << "Supported Multimedia Formats:" << multiFilter;
+  }
+  QStringList files = dir.entryList(multiFilter, QDir::Files | QDir::NoDotAndDotDot, QDir::Name | QDir::IgnoreCase);
+  if(!files.isEmpty() && !multiFilter.isEmpty()){ emit MultimediaAvailable(files); }
+  
+  //Now check for ZFS snapshots of the directory
+  if(!QFileInfo(path).isWritable() ){ return; } //skip ZFS checks if can't restore to this dir
+  QStringList snapDirs; 
+  QString baseSnapDir;
+  bool found = false;
+  while(dir.absolutePath()!="/" && !found){
+    if(dir.exists(".zfs/snapshot")){ found = true;}
+    else{ dir.cdUp(); }
+  }
+  //Now find the snapshots that contain this directory and save them
+  if(found){
+    QString reldir = path;
+	  reldir.remove(dir.absolutePath()); //convert to a relative path
+    dir.cd(".zfs/snapshot");
+    baseSnapDir = dir.canonicalPath(); //set the base snapshot dir as the new root
+    snapDirs = dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot, QDir::Time);
+    //Check that the current directory exists in each snapshot
+    for(int i=0; i<snapDirs.length(); i++){
+      if( !dir.exists(snapDirs[i]+"/"+reldir) ){
+        snapDirs.removeAt(i);
+	i--;
+      }else{
+	snapDirs[i] = QFileInfo(dir, snapDirs[i]+"/"+reldir).created().toString("yyyyMMddhhmmsszzz")+"::::"+snapDirs[i];
+      }
+    }
+    snapDirs.sort();
+    //Sort the snapshots by time (newest last) and format them
+    for(int i=0; i<snapDirs.length(); i++){
+      snapDirs[i] = dir.absolutePath()+"/"+snapDirs[i].section("::::",1,50)+"/"+reldir;
+    }
+    if(!snapDirs.isEmpty()){ emit SnapshotsAvailable(baseSnapDir, snapDirs); }
+    //qDebug() << "Found snapshots:" << snapDirs;
+  }
+}
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