Merge remote-tracking branch 'origin/master'

1 files changed, 184 insertions, 0 deletions

diff --git a/src-qt5/core/libLumina/LFileInfo.cpp b/src-qt5/core/libLumina/LFileInfo.cpp
new file mode 100644
index 00000000..e7d2b71a
--- /dev/null
+++ b/src-qt5/core/libLumina/LFileInfo.cpp
@@ -0,0 +1,184 @@
+//===========================================
+//  Lumina-DE source code
+//  Copyright (c) 2013-2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#include "LFileInfo.h"
+#include <LUtils.h>
+
+LFileInfo::LFileInfo() : QFileInfo(){
+  desk = 0;
+}
+
+LFileInfo::LFileInfo(QString filepath) : QFileInfo(){ //overloaded contructor
+  desk = 0;
+  this->setFile(filepath);
+  loadExtraInfo();
+}
+
+LFileInfo::LFileInfo(QFileInfo info) : QFileInfo(){ //overloaded contructor
+  desk = 0;
+  this->swap(info); //use the given QFileInfo without re-loading it
+  loadExtraInfo();
+}
+LFileInfo::~LFileInfo(){
+  if(desk!=0){ desk->deleteLater(); }
+}
+
+//Need some extra information not usually available by a QFileInfo
+void LFileInfo::loadExtraInfo(){
+  if(desk!=0){ desk->deleteLater(); }
+  desk = 0;
+  //Now load the extra information
+  if(this->absoluteFilePath().startsWith("/net/") || this->isDir() ){
+    mime = "inode/directory";
+    //Special directory icons
+    QString name = this->fileName().toLower();
+    if(name=="desktop"){ icon = "user-desktop"; }
+    else if(name=="tmp"){ icon = "folder-temp"; }
+    else if(name=="video" || name=="videos"){ icon = "folder-video"; }
+    else if(name=="music" || name=="audio"){ icon = "folder-sound"; }
+    else if(name=="projects" || name=="devel"){ icon = "folder-development"; }
+    else if(name=="notes"){ icon = "folder-txt"; }
+    else if(name=="downloads"){ icon = "folder-downloads"; }
+    else if(name=="documents"){ icon = "folder-documents"; }
+    else if(name=="images" || name=="pictures"){ icon = "folder-image"; }
+    else if(this->absoluteFilePath().startsWith("/net/")){ icon = "folder-remote"; }
+    else if( !this->isReadable() ){ icon = "folder-locked"; }
+  }else if( this->suffix()=="desktop"){
+    mime = "application/x-desktop";
+    icon = "application-x-desktop"; //default value
+    desk = new XDGDesktop(this->absoluteFilePath(), 0);
+    if(desk->type!=XDGDesktop::BAD){
+      //use the specific desktop file info (if possible)
+      if(!desk->icon.isEmpty()){ icon = desk->icon; }
+    }
+  }else{
+    //Generic file, just determine the mimetype
+    mime = LXDG::findAppMimeForFile(this->fileName());
+  }
+}
+
+bool LFileInfo::zfsAvailable(){
+  static unsigned int avail = 2;
+  if(avail == 2){ avail = (LUtils::isValidBinary("zfs") ? 0 : 1); }
+  return (avail == 0);
+}
+
+void LFileInfo::getZfsDataset(){
+  if(zfs_ds.isEmpty()){
+    //First run - need to probe the current directory
+    bool ok = false;
+    //Use the "atime" property for this check - been around since the earliest versions of ZFS and should take no time to probe
+    QString out = LUtils::runCommand(ok, "zfs", QStringList() << "get" << "-H" << "atime" << this->canonicalFilePath() );
+    if(!ok){ zfs_ds = "."; } //just something that is not empty - but is clearly not a valid dataset
+    else{  zfs_ds = out.section("\n",0,0).section("\t",0,0).simplified(); }
+    //qDebug() << "Found Dataset:" << zfs_ds << out << ok;
+  }
+}
+
+bool LFileInfo::goodZfsDataset(){
+  if(!zfsAvailable()){ return false; }
+  getZfsDataset(); //ensure this field is populated
+  if(zfs_ds=="." || zfs_ds.isEmpty()){ return false; }
+  return true;
+}
+
+//Functions for accessing the extra information
+// -- Return the mimetype for the file
+QString LFileInfo::mimetype(){
+  if(mime=="inode/directory"){ return ""; }
+  else{ return mime; }
+}
+
+// -- Return the icon to use for this file
+QString LFileInfo::iconfile(){
+  if(!icon.isEmpty()){
+    return icon;
+  }else if(!mime.isEmpty()){
+    QString tmp = mime;
+    tmp.replace("/","-");
+    return tmp;
+  }else if(this->isExecutable()){
+    return "application-x-executable";
+  }
+  return ""; //Fall back to nothing
+}
+
+// -- Check if this is an XDG desktop file
+bool LFileInfo::isDesktopFile(){
+  if(desk==0){ return false; }
+  return (!desk->filePath.isEmpty());
+}
+
+// -- Allow access to the XDG desktop data structure
+XDGDesktop* LFileInfo::XDG(){
+  return desk;
+}
+
+// -- Check if this is a readable video file (for thumbnail support)
+bool LFileInfo::isVideo(){
+  if(!mime.startsWith("video/")){ return false; }
+  //Check the hardcoded list of known supported video formats to see if the thumbnail can be generated
+  return ( !LUtils::videoExtensions().filter(this->suffix().toLower()).isEmpty() );
+}
+
+// -- Check if this is a readable image file
+bool LFileInfo::isImage(){
+  if(!mime.startsWith("image/")){ return false; } //quick return for non-image files
+  //Check the Qt subsystems to see if this image file can be read
+  return ( !LUtils::imageExtensions().filter(this->suffix().toLower()).isEmpty() );
+}
+
+bool LFileInfo::isAVFile(){
+  return (mime.startsWith("audio/") || mime.startsWith("video/") );
+}
+
+bool LFileInfo::isZfsDataset(){
+  if(!goodZfsDataset()){ return false; }
+  return ( ("/"+zfs_ds.section("/",1,-1)) == this->canonicalFilePath());
+}
+
+QString LFileInfo::zfsPool(){
+  if(!goodZfsDataset()){ return ""; }
+  return zfs_ds.section("/",0,0);
+}
+
+QStringList LFileInfo::zfsSnapshots(){
+  if(!goodZfsDataset()){ return QStringList(); }
+  QString relpath = this->canonicalFilePath().remove(0, QString("/"+zfs_ds.section("/",1,-1)).length() );
+  //qDebug() << "Got Relative path:" << zfs_ds << this->canonicalFilePath() << relpath;
+  QDir dir("/"+zfs_ds.section("/",1,-1)+"/.zfs/snapshot/");
+  QStringList snaps = dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot, QDir::Time);
+  for(int i=0; i<snaps.length(); i++){
+    if( QFile::exists(dir.absoluteFilePath(snaps[i])+relpath) ){  snaps[i].append("::::" + dir.absoluteFilePath(snaps[i])+relpath ); }
+    else{ snaps.removeAt(i); i--; }
+  }
+  return snaps;
+}
+
+QJsonObject LFileInfo::zfsProperties(){
+  QJsonObject props;
+  if(!goodZfsDataset()){ return props; }
+  bool ok = false;
+  QStringList out = LUtils::runCommand(ok, "zfs", QStringList() << "get" << "-H" << "all"  << zfs_ds).split("\n");
+  //Note: Formating of zfs output: tab-delimited, with columns [dataset, property, value, source]
+  for(int i=0; i<out.length() && ok; i++){
+    if(out[i].simplified().isEmpty()){ continue; }
+    QJsonObject prop;
+    prop.insert("property", out[i].section("\t",1,1).simplified());
+    prop.insert("value", out[i].section("\t",2,2).simplified());
+    prop.insert("source", out[i].section("\t",3,-1).simplified());
+    props.insert(prop.value("property").toString(), prop);
+  }
+  return props;
+}
+
+bool LFileInfo::zfsSetProperty(QString property, QString value){
+  if(!goodZfsDataset()){ return false; }
+  bool ok = false;
+  QString info = LUtils::runCommand(ok, "zfs", QStringList() << "set" << property+"="+value << zfs_ds);
+  if(!ok){ qDebug() << "Error Setting ZFS Property:" << property+"="+value << info; }
+  return ok;
+}