From 5b5a8cb0532d5c031b26ab6d115850fd1160fd03 Mon Sep 17 00:00:00 2001
From: Ken Moore <moorekou@gmail.com>
Date: Wed, 6 Jul 2016 12:51:07 -0400
Subject: Setup the session process launcher to provide the capability of
 prompting fluxbox and/or compton to reload it's configs when they change.

---
 src-qt5/core/lumina-session/lumina-session.pro |  4 +--
 src-qt5/core/lumina-session/session.cpp        |  8 ++---
 src-qt5/core/lumina-session/session.h          | 41 +++++++++++++++++++++++++-
 3 files changed, 46 insertions(+), 7 deletions(-)

(limited to 'src-qt5/core')

diff --git a/src-qt5/core/lumina-session/lumina-session.pro b/src-qt5/core/lumina-session/lumina-session.pro
index 91ef5ed0..91a5f891 100644
--- a/src-qt5/core/lumina-session/lumina-session.pro
+++ b/src-qt5/core/lumina-session/lumina-session.pro
@@ -1,13 +1,13 @@
 include($${PWD}/../../OS-detect.pri)
 
-QT       += core widgets x11extras
+QT       = core widgets
 
 
 TARGET = start-lumina-desktop
 target.path = $${L_BINDIR}
 
 
-LIBS     += -lLuminaUtils -lxcb -lxcb-damage
+LIBS     += -lLuminaUtils
 DEPENDPATH	+= ../libLumina
 
 SOURCES += main.cpp \
diff --git a/src-qt5/core/lumina-session/session.cpp b/src-qt5/core/lumina-session/session.cpp
index 7f9983dd..384c75f9 100644
--- a/src-qt5/core/lumina-session/session.cpp
+++ b/src-qt5/core/lumina-session/session.cpp
@@ -44,14 +44,14 @@ void LSession::procFinished(){
   }
 }
 
-void LSession::startProcess(QString ID, QString command){
+void LSession::startProcess(QString ID, QString command, QStringList watchfiles){
   QString dir = QString(getenv("XDG_CONFIG_HOME"))+"/lumina-desktop/logs";
   if(!QFile::exists(dir)){ QDir tmp(dir); tmp.mkpath(dir); }
   QString logfile = dir+"/"+ID+".log";
   if(QFile::exists(logfile+".old")){ QFile::remove(logfile+".old"); }
   if(QFile::exists(logfile)){ QFile::rename(logfile,logfile+".old"); }
 
-  QProcess *proc = new QProcess();
+  LProcess *proc = new LProcess(ID, watchfiles);
   proc->setProcessChannelMode(QProcess::MergedChannels);
   proc->setProcessEnvironment( QProcessEnvironment::systemEnvironment() );
   proc->setStandardOutputFile(logfile);
@@ -68,7 +68,7 @@ void LSession::start(){
   //Window Manager First
   // FLUXBOX BUG BYPASS: if the ~/.fluxbox dir does not exist, it will ignore the given config file
   //if(!QFile::exists(QDir::homePath()+"/.fluxbox")){ QDir dir; dir.mkpath(QDir::homePath()+"/.fluxbox"); }
-  //startProcess("wm", "fluxbox -rc "+QDir::homePath()+"/.lumina/fluxbox-init -no-slit -no-toolbar");
+  //startProcess("wm", "fluxbox -rc "+QString(getenv("XDG_CONFIG_HOME"))+"/lumina-desktop/fluxbox-init -no-slit -no-toolbar");
 
   //Compositing manager
   if(LUtils::isValidBinary("compton")){ 
@@ -84,7 +84,7 @@ void LSession::start(){
       qDebug() << "Using default compton settings";
       startProcess("compositing","compton");
     }else{
-      startProcess("compositing","compton --config \""+set+"\"");
+      startProcess("compositing","compton --config \""+set+"\"", QStringList() << set);
     }
   }else if(LUtils::isValidBinary("xcompmgr")){ startProcess("compositing","xcompmgr"); }
 
diff --git a/src-qt5/core/lumina-session/session.h b/src-qt5/core/lumina-session/session.h
index 5bd5d44a..0bace416 100644
--- a/src-qt5/core/lumina-session/session.h
+++ b/src-qt5/core/lumina-session/session.h
@@ -6,6 +6,45 @@
 //===========================================
 #include <QObject>
 #include <QProcess>
+#include <QFileSystemWatcher>
+
+#include <sys/types.h>
+#include <signal.h>
+
+class LProcess : public QProcess{
+	Q_OBJECT
+private:
+	QFileSystemWatcher *watcher;
+	QString id;
+private slots:
+	void filechanged(QString path){
+	  if(watcher==0){ return; } //just in case
+	  if(this->state()==QProcess::Running){
+	    if(this->program().section(" ",0,0).section("/",-1) == "fluxbox" ){ ::kill(this->pid(), SIGUSR2); } //Fluxbox needs SIGUSR2 to reload it's configs
+	    else if(this->program().section(" ",0,0).section("/",-1) == "compton" ){ ::kill(this->pid(), SIGUSR1); } //Compton needs SIGUSR1 to reload it's configs
+	  }
+	  //Now make sure this file/dir was not removed from the watcher
+	  QStringList watched; watched << watcher->files() << watcher->directories();
+	  if(!watched.contains(path)){ watcher->addPath(path); } //re-add it
+	}
+
+public:
+	LProcess(QString ID, QStringList watchfiles) : QProcess(){
+	  id=ID;
+	  watcher = 0;
+          if(watchfiles.isEmpty()){
+	    watcher = new QFileSystemWatcher(this);
+	    connect(watcher, SIGNAL(fileChanged(QString)), this, SLOT(filechanged(QString)) );
+	    connect(watcher, SIGNAL(directoryChanged(QString)), this, SLOT(filechanged(QString)) );
+	    watcher->addPaths(watchfiles);
+	  }
+	}
+	~LProcess(){
+
+	}
+	QString ID(){ return id; }
+
+};
 
 class LSession : public QObject{
 	Q_OBJECT
@@ -18,7 +57,7 @@ private slots:
 
 	void procFinished();
 
-	void startProcess(QString ID, QString command);
+	void startProcess(QString ID, QString command, QStringList watchfiles = QStringList());
 
 public:
 	LSession(){
-- 
cgit