From e3fc2e3b7c634df819fa75629233e5f319ae6903 Mon Sep 17 00:00:00 2001
From: Ken Moore <ken@pcbsd.org>
Date: Fri, 27 Feb 2015 13:08:32 -0500
Subject: Update how lumina-open detects applications which are registered on
 the system for a particular mimetype. Now it uses the manual method (checking
 each *.desktop file for that particular mimetype - since it has to load all
 of them anyway), as well as use the results of any matches in the
 <XDG_DATA_DIRS>/applications/mimeinfo.cache file.

---
 libLumina/LuminaXDG.cpp     | 29 +++++++++++++++++++++++++++++
 libLumina/LuminaXDG.h       |  2 ++
 lumina-open/LFileDialog.cpp | 14 ++++++++++----
 3 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/libLumina/LuminaXDG.cpp b/libLumina/LuminaXDG.cpp
index 3ec16887..27b3b637 100644
--- a/libLumina/LuminaXDG.cpp
+++ b/libLumina/LuminaXDG.cpp
@@ -569,6 +569,35 @@ QString LXDG::findDefaultAppForMime(QString mime){
   return cdefault;
 }
 
+QStringList LXDG::findAvailableAppsForMime(QString mime){
+  QStringList dirs = LXDG::systemApplicationDirs();
+  QStringList out;
+  //Loop over all possible directories that contain *.destop files
+  //  and check for the mimeinfo.cache file
+  for(int i=0; i<dirs.length(); i++){
+    if(QFile::exists(dirs[i]+"/mimeinfo.cache")){
+      QStringList matches = LUtils::readFile(dirs[i]+"/mimeinfo.cache").filter(mime+"=");
+      //Find any matches for our mimetype in the cache
+      for(int j=0; j<matches.length(); j++){
+        QStringList files = matches[j].section("=",1,1).split(";",QString::SkipEmptyParts);
+	//Verify that each file exists before putting the full path to the file in the output
+	for(int m=0; m<files.length(); m++){
+	  if(QFile::exists(dirs[i]+"/"+files[m])){
+	    out << dirs[i]+"/"+files[m];
+	  }else if(files[m].contains("-")){ //kde4-<filename> -> kde4/<filename> (stupid KDE variations!!)
+	    files[m].replace("-","/");
+	    if(QFile::exists(dirs[i]+"/"+files[m])){
+	      out << dirs[i]+"/"+files[m];
+	    }
+	  }
+	}
+      }
+    }
+  }
+  //qDebug() << "Found Apps for Mime:" << mime << out << dirs;
+  return out;
+}
+
 void LXDG::setDefaultAppForMime(QString mime, QString app){
   QString filepath = QString(getenv("XDG_CONFIG_HOME"))+"/lumina-mimeapps.list";
   QStringList cinfo = LUtils::readFile(filepath);
diff --git a/libLumina/LuminaXDG.h b/libLumina/LuminaXDG.h
index ad09d490..fe44a4fd 100644
--- a/libLumina/LuminaXDG.h
+++ b/libLumina/LuminaXDG.h
@@ -91,6 +91,8 @@ public:
 	static QString findMimeComment(QString mime);
 	//Find the default application for a mime-type
 	static QString findDefaultAppForMime(QString mime);
+	//Fine the available applications for a mime-type
+	static QStringList findAvailableAppsForMime(QString mime);
 	//Set the default application for a mime-type
 	static void setDefaultAppForMime(QString mime, QString app);
 	//List all the registered audio/video file extensions
diff --git a/lumina-open/LFileDialog.cpp b/lumina-open/LFileDialog.cpp
index 5214a2f1..d648925b 100644
--- a/lumina-open/LFileDialog.cpp
+++ b/lumina-open/LFileDialog.cpp
@@ -38,7 +38,7 @@ void LFileDialog::setFileInfo(QString filename, QString extension, bool isFile){
   else if(extension=="email"){ ui->label_extension->setText( QString(tr("(Email Link)")) ); }
   else if(extension=="webbrowser"){  ui->label_extension->setText( QString(tr("(Internet URL)")) ); }
   else{ui->label_extension->setText("("+extension+" link)"); }
-  fileEXT = extension;
+  fileEXT = extension; //NOTE: this is the mime-type for the file now, not the extension
   generateAppList();
 }
 
@@ -66,9 +66,13 @@ void LFileDialog::setDefaultApp(QString extension, QString appFile){
 //   PRIVATE
 // -----------
 QStringList LFileDialog::getPreferredApplications(){
-  //Now search the settings for that extension
-  QStringList keys = settings->allKeys();
   QStringList out;
+  //First list all the applications registered for that same mimetype
+  QString mime = fileEXT;
+  out << LXDG::findAvailableAppsForMime(mime);
+	
+  //Now search the internal settings for that extension and find any applications last used
+  QStringList keys = settings->allKeys();
   for(int i=0; i<keys.length(); i++){
     if(keys[i].startsWith("default/")){ continue; } //ignore the defaults (they will also be in the main)
     if(keys[i].toLower() == fileEXT.toLower()){
@@ -83,6 +87,8 @@ QStringList LFileDialog::getPreferredApplications(){
       if(!out.isEmpty()){ break; } //already found files
     }
   }
+  //Make sure we don't have any duplicates before we return the list
+  out.removeDuplicates();
   return out;
 }
 
@@ -159,7 +165,7 @@ void LFileDialog::generateAppList(){
   PREFAPPS = getPreferredApplications();
   ui->combo_rec->clear();
   //Now get the application mimetype for the file extension (if available)
-  QString mimetype = LXDG::findAppMimeForFile(fileEXT);
+  QString mimetype = fileEXT;
   //Now add all the detected applications
   QHash< QString, QList<XDGDesktop> > hash = LXDG::sortDesktopCats( LXDG::systemDesktopFiles() );
   QStringList cat = hash.keys();
-- 
cgit