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//===========================================
// Lumina-DE source code
// Copyright (c) 2012, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "LSysTray.h"
#include "../../LSession.h"
#include <LuminaX11.h>
//X includes (these need to be last due to Qt compile issues)
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/Xdamage.h>
//Static variables for damage detection (tray update notifications)
static int dmgEvent = 0;
static int dmgError = 0;
LSysTray::LSysTray(QWidget *parent, QString id, bool horizontal) : LPPlugin(parent, id, horizontal){
frame = new QFrame(this);
frame->setContentsMargins(0,0,0,0);
//frame->setStyleSheet("QFrame{ background: transparent; border: 1px solid transparent; border-radius: 5px; }");
LI = new QBoxLayout( this->layout()->direction());
frame->setLayout(LI);
LI->setAlignment(Qt::AlignCenter);
LI->setSpacing(1);
LI->setContentsMargins(0,0,0,0);
this->layout()->addWidget(frame);
this->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
TrayID=0;
upTimer = new QTimer(this);
upTimer->setInterval(300000); //maximum time between refreshes is 5 minutes
connect(upTimer, SIGNAL(timeout()), this, SLOT(checkAll()) );
isRunning = false;
start();
}
LSysTray::~LSysTray(){
if(isRunning){
this->stop();
}
}
void LSysTray::start(){
if(TrayID!=0){ return; } //already running
//Make sure we catch all events right away
connect(LSession::instance(),SIGNAL(aboutToQuit()),this,SLOT(closeAll()) );
connect(LSession::instance(),SIGNAL(TrayEvent(XEvent*)), this, SLOT(checkXEvent(XEvent*)) );
isRunning = true;
TrayID = LX11::startSystemTray(0); //LSession::desktop()->screenNumber(this));
if(TrayID!=0){
XSelectInput(QX11Info::display(), TrayID, InputOutput); //make sure TrayID events get forwarded here
XDamageQueryExtension( QX11Info::display(), &dmgEvent, &dmgError);
//Now connect the session logout signal to the close function
qDebug() << "System Tray Started Successfully";
upTimer->start();
//QTimer::singleShot(100, this, SLOT(initialTrayIconDetect()) );
}else{
disconnect(this);
}
isRunning = (TrayID!=0);
}
void LSysTray::stop(){
if(!isRunning){ return; }
upTimer->stop();
//Now close down the system tray registry
qDebug() << "Stop system Tray";
LX11::closeSystemTray(TrayID);
TrayID = 0;
disconnect(this); //remove any signals/slots
isRunning = false;
//Release all the tray applications and delete the containers
qDebug() << " - Remove tray applications";
for(int i=(trayIcons.length()-1); i>=0; i--){
trayIcons[i]->detachApp();
TrayIcon *cont = trayIcons.takeAt(i);
LI->removeWidget(cont);
delete cont;
}
qDebug() << "Done stopping system tray";
}
// ========================
// PRIVATE FUNCTIONS
// ========================
void LSysTray::checkXEvent(XEvent *event){
if(!isRunning){ return; }
switch(event->type){
// -------------------------
case ClientMessage:
//Only check if the client is the system tray, otherwise ignore
if(event->xany.window == TrayID){
//qDebug() << "SysTray: ClientMessage";
switch(event->xclient.data.l[1]){
case SYSTEM_TRAY_REQUEST_DOCK:
addTrayIcon(event->xclient.data.l[2]); //Window ID
break;
//case SYSTEM_TRAY_BEGIN_MESSAGE:
//Let the window manager handle the pop-up messages for now
//break;
//case SYSTEM_TRAY_CANCEL_MESSAGE:
//Let the window manager handle the pop-up messages for now
//break;
}
}
break;
case SelectionClear:
if(event->xany.window == TrayID){
//qDebug() << "SysTray: Selection Clear";
this->stop(); //de-activate this system tray (release all embeds)
}
break;
case DestroyNotify:
//qDebug() << "SysTray: DestroyNotify";
removeTrayIcon(event->xany.window); //Check for removing an icon
break;
case ConfigureNotify:
for(int i=0; i<trayIcons.length(); i++){
if(event->xany.window==trayIcons[i]->appID()){
//qDebug() << "SysTray: Configure Event" << trayIcons[i]->appID();
trayIcons[i]->update(); //trigger a repaint event
break;
}
}
default:
if(event->type == dmgEvent+XDamageNotify){
WId ID = reinterpret_cast<XDamageNotifyEvent*>(event)->drawable;
//qDebug() << "SysTray: Damage Event";
for(int i=0; i<trayIcons.length(); i++){
if(ID==trayIcons[i]->appID()){
//qDebug() << "SysTray: Damage Event" << ID;
trayIcons[i]->update(); //trigger a repaint event
break;
}
}
}
}//end of switch over event type
}
void LSysTray::closeAll(){
//Actually close all the tray apps (not just unembed)
//This is used when the desktop is shutting everything down
for(int i=0; i<trayIcons.length(); i++){
LX11::CloseWindow(trayIcons[i]->appID());
}
}
void LSysTray::checkAll(){
for(int i=0; i<trayIcons.length(); i++){
trayIcons[i]->update();
}
}
void LSysTray::initialTrayIconDetect(){
// WARNING: This is still experimental and should be disabled by default!!
QList<WId> wins = LX11::findOrphanTrayWindows();
for(int i=0; i<wins.length(); i++){
//addTrayIcon(wins[i]);
qDebug() << "Initial Tray Window:" << wins[i] << LX11::WindowClass(wins[i]);
}
}
void LSysTray::addTrayIcon(WId win){
if(win == 0 || !isRunning){ return; }
//qDebug() << "System Tray: Add Tray Icon:" << win;
bool exists = false;
for(int i=0; i<trayIcons.length(); i++){
if(trayIcons[i]->appID() == win){ exists=true; break; }
}
if(!exists){
//qDebug() << " - New Icon Window:" << win;
TrayIcon *cont = new TrayIcon(this);
QCoreApplication::processEvents();
connect(cont, SIGNAL(AppClosed()), this, SLOT(trayAppClosed()) );
connect(cont, SIGNAL(AppAttached()), this, SLOT(updateStatus()) );
trayIcons << cont;
LI->addWidget(cont);
//qDebug() << " - Update tray layout";
if(this->layout()->direction()==QBoxLayout::LeftToRight){
cont->setSizeSquare(this->height()-2*frame->frameWidth()); //horizontal tray
this->setMaximumSize( trayIcons.length()*this->height(), 10000);
}else{
cont->setSizeSquare(this->width()-2*frame->frameWidth()); //vertical tray
this->setMaximumSize(10000, trayIcons.length()*this->width());
}
LSession::processEvents();
//qDebug() << " - Attach tray app";
cont->attachApp(win);
LI->update(); //make sure there is no blank space
}
}
void LSysTray::removeTrayIcon(WId win){
if(win==0 || !isRunning){ return; }
for(int i=0; i<trayIcons.length(); i++){
if(trayIcons[i]->appID()==win){
//qDebug() << " - Remove Icon Window:" << win;
//Remove it from the layout and keep going
TrayIcon *cont = trayIcons.takeAt(i);
LI->removeWidget(cont);
delete cont;
i--; //make sure we don't miss an item when we continue
QCoreApplication::processEvents();
}
}
//Re-adjust the maximum widget size to account for what is left
if(this->layout()->direction()==QBoxLayout::LeftToRight){
this->setMaximumSize( trayIcons.length()*this->height(), 10000);
}else{
this->setMaximumSize(10000, trayIcons.length()*this->width());
}
LI->update(); //update the layout (no gaps)
this->update(); //update the main widget appearance
}
void LSysTray::updateStatus(){
qDebug() << "System Tray: Client Attached";
LI->update(); //make sure there is no blank space
//qDebug() << " - Items:" << trayIcons.length();
}
void LSysTray::trayAppClosed(){
if(!isRunning){ return; }
for(int i=0; i<trayIcons.length(); i++){
if(trayIcons[i]->appID() == 0){
qDebug() << "System Tray: Removing icon";
TrayIcon *cont = trayIcons.takeAt(i);
LI->removeWidget(cont);
delete cont;
QCoreApplication::processEvents();
}
}
//Re-adjust the maximum widget size
if(this->layout()->direction()==QBoxLayout::LeftToRight){
this->setMaximumSize( trayIcons.length()*this->height(), 10000);
}else{
this->setMaximumSize(10000, trayIcons.length()*this->width());
}
LI->update(); //update the layout (no gaps)
this->update();
}
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