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//===========================================
// Lumina-DE source code
// Copyright (c) 2016, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "Browser.h"
#include <QStringList>
#include <QTimer>
#include <QtConcurrent>
#include <QDebug>
#include <LuminaUtils.h>
Browser::Browser(QObject *parent) : QObject(parent){
watcher = new QFileSystemWatcher(this);
connect(watcher, SIGNAL(fileChanged(const QString&)), this, SLOT(fileChanged(QString)) );
connect(watcher, SIGNAL(directoryChanged(const QString&)), this, SLOT(dirChanged(QString)) );
showHidden = false;
imageFormats = LUtils::imageExtensions(false); //lowercase suffixes
connect(this, SIGNAL(threadDone(QString, QByteArray)), this, SLOT(futureFinished(QString, QByteArray)), Qt::QueuedConnection); //will always be between different threads
}
Browser::~Browser(){
watcher->deleteLater();
}
QString Browser::currentDirectory(){ return currentDir; }
void Browser::showHiddenFiles(bool show){
if(show !=showHidden){
showHidden = show;
QTimer::singleShot(0, this, SLOT(loadDirectory()) );
}
}
bool Browser::showingHiddenFiles(){
return showHidden;
}
// PRIVATE
void Browser::loadItem(QString info){
//qDebug() << "LoadItem:" << info;
////FileItem item;
//itemame = info;
QByteArray bytes;
if(imageFormats.contains(info.section(".",-1).toLower()) ){
QFile file(info);
if(file.open(QIODevice::ReadOnly)){
bytes = file.readAll();
file.close();
}
/*QPixmap pix;
if(pix.load(item.info.absoluteFilePath()) ){
if(pix.height()>128){ pix = pix.scaled(128, 128, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation); }
item.icon.addPixmap(pix);
}*/
}/*else if(item.info.isDir()){
item.icon = LXDG::findIcon("folder","inode/directory");
}
if(item.icon.isNull()){ item.icon = LXDG::findIcon(item.info.mimetype(), "unknown"); }*/
//qDebug() << " - done with item:" << info;
emit threadDone(info, bytes);
//return item;
}
// PRIVATE SLOTS
void Browser::fileChanged(QString file){
if(file.startsWith(currentDir+"/")){ emit itemUpdated(file); }
else if(file==currentDir){ QTimer::singleShot(0, this, SLOT(loadDirectory()) ); }
}
void Browser::dirChanged(QString dir){
if(dir==currentDir){ QTimer::singleShot(0, this, SLOT(loadDirectory()) ); }
else if(dir.startsWith(currentDir)){ emit itemUpdated(dir); }
}
void Browser::futureFinished(QString name, QByteArray icon){
//Note: this will be called once for every item that loads
//qDebug() << "Future Finished" << name;
//for(int i=0; i<fwatchers.length(); i++){
//if(fwatchers[i]->isFinished()){
//FileItem FI = fwatchers[i]->result();
//qDebug() << "Found finished:" << FI.name << i;
//disconnect(fwatchers[i]);
//fwatchers.takeAt(i)->deleteLater();
//fwatchers.removeAt(i);
QIcon ico;
LFileInfo info(name);
if(!icon.isEmpty()){
QPixmap pix;
if(pix.loadFromData(icon) ){ ico.addPixmap(pix); }
}else if(info.isDir()){
ico = LXDG::findIcon("folder","inode/directory");
}
if(ico.isNull()){ ico = LXDG::findIcon( info.mimetype(), "unknown" ); }
this->emit itemDataAvailable( ico, info );
//qDebug() << "- done";
//i--;
//return;
//}
//}
}
// PUBLIC SLOTS
void Browser::loadDirectory(QString dir){
//qDebug() << "Load Directory" << dir;
if(dir.isEmpty()){ dir = currentDir; } //reload current directory
if(dir.isEmpty()){ return; } //nothing to do - nothing previously loaded
//clean up the watcher first
QStringList watched; watched << watcher->files() << watcher->directories();
if(!watched.isEmpty()){ watcher->removePaths(watched); }
emit clearItems(); //let the main widget know to clear all current items
// read the given directory
QDir directory(dir);
if(directory.exists()){
QStringList files;
if(showHidden){ files = directory.entryList( QDir::Dirs | QDir::Files | QDir::Hidden | QDir::NoDotAndDotDot, QDir::NoSort); }
else{ files = directory.entryList( QDir::Dirs | QDir::Files | QDir::NoDotAndDotDot, QDir::NoSort); }
for(int i=0; i<files.length(); i++){
watcher->addPath(directory.absoluteFilePath(files[i]));
//qDebug() << "Future Starting:" << files[i];
QString path = directory.absoluteFilePath(files[i]);
QtConcurrent::run(this, &Browser::loadItem, path );
}
watcher->addPath(directory.absolutePath());
}
}
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