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//===========================================
// Lumina-DE source code
// Copyright (c) 2015, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "LXcbEventFilter.h"
//For all the XCB interactions and atoms
// is accessed via
// XCB->EWMH.(atom name)
// XCB->(do something)
#include <LuminaX11.h>
#include <QDebug>
//#include <xcb/screensaver.h>
// Also keep the root window/screen around for use in the filters
namespace L_XCB{
xcb_screen_t *root_screen;
xcb_window_t root;
}
//Constructor for the Event Filter wrapper
EventFilter::EventFilter() : QObject(){
EF = new XCBEventFilter(this);
L_XCB::root_screen = xcb_aux_get_screen(QX11Info::connection(), QX11Info::appScreen());
L_XCB::root = L_XCB::root_screen->root;
}
void EventFilter::start(){
QCoreApplication::instance()->installNativeEventFilter(EF);
xcb_generic_error_t *status;
xcb_connection_t *my_connection;
xcb_void_cookie_t window_attributes;
const unsigned int *returned;
//Also ensure it gets root window events
//Need the "real" root window (not the virtual root which Qt might return
my_connection = QX11Info::connection();
returned = (uint32_t *) ROOT_EVENT_MASK;
window_attributes = xcb_change_window_attributes_checked(my_connection, L_XCB::root, XCB_CW_EVENT_MASK, returned);
status = xcb_request_check(my_connection, window_attributes);
// if( 0!= xcb_request_check( QX11Info::connection(), xcb_change_window_attributes_checked(QX11Info::connection(), L_XCB::root, XCB_CW_EVENT_MASK, (uint32_t[]){ROOT_EVENT_MASK} ) ) ){
if (status)
{
qCritical() << "[ERROR] Unable to setup WM event retrieval. Is another WM running?";
exit(1);
}
//xcb_screensaver_select_input(QX11Info::connection(),QX11Info::appRootWindow() , masks);
xcb_flush(QX11Info::connection());
}
//Constructor for the XCB event filter
XCBEventFilter::XCBEventFilter(EventFilter *parent) : QAbstractNativeEventFilter(){
obj = parent;
XCB = new LXCB();
InitAtoms();
}
//This function format taken directly from the Qt5.3 documentation
bool XCBEventFilter::nativeEventFilter(const QByteArray &eventType, void *message, long *) Q_DECL_OVERRIDE
{
//if(stopping){ return false; } //don't do any parsing
//qDebug() << "New Event";
bool stopevent = false;
if(eventType=="xcb_generic_event_t"){
//Convert to known event type (for X11 systems)
xcb_generic_event_t *ev = static_cast<xcb_generic_event_t *>(message);
//Now parse the event and emit signals as necessary
switch( ev->response_type & ~0x80){
//==============================
case XCB_KEY_PRESS:
qDebug() << "Key Press Event";
obj->emit NewInputEvent();
break;
case XCB_KEY_RELEASE:
qDebug() << "Key Release Event";
obj->emit NewInputEvent();
break;
case XCB_BUTTON_PRESS:
qDebug() << "Button Press Event";
obj->emit NewInputEvent();
break;
case XCB_BUTTON_RELEASE:
qDebug() << "Button Release Event";
obj->emit NewInputEvent();
break;
case XCB_MOTION_NOTIFY:
qDebug() << "Motion Notify Event";
obj->emit NewInputEvent();
break;
//==============================
case XCB_PROPERTY_NOTIFY:
qDebug() << "Property Notify Event:";
//qDebug() << " - Root Window:" << QX11Info::appRootWindow();
//qDebug() << " - Given Window:" << ((xcb_property_notify_event_t*)ev)->window;
//System-specific proprty change
if( SysNotifyAtoms.contains( ((xcb_property_notify_event_t*)ev)->atom ) ){
//Update the status/list of all running windows
//session->WindowPropertyEvent();
//window-specific property change
}else if( WinNotifyAtoms.contains( ((xcb_property_notify_event_t*)ev)->atom ) ){
//Ping only that window
//session->WindowPropertyEvent( ((xcb_property_notify_event_t*)ev)->window );
//session->WindowPropertyEvent();
}
break;
//==============================
case XCB_CLIENT_MESSAGE:
qDebug() << "Client Message Event";
//qDebug() << " - Root Window:" << QX11Info::appRootWindow();
//qDebug() << " - Given Window:" << ((xcb_client_message_event_t*)ev)->window;
//if( TrayDmgFlag!=0 && ((xcb_client_message_event_t*)ev)->type == _NET_SYSTEM_TRAY_OPCODE && ((xcb_client_message_event_t*)ev)->format == 32){
//data32[0] is timestamp, [1] is opcode, [2] is window handle
//if(SYSTEM_TRAY_REQUEST_DOCK == ((xcb_client_message_event_t*)ev)->data.data32[1]){
//session->SysTrayDockRequest( ((xcb_client_message_event_t*)ev)->data.data32[2] );
//}
//Ignore the System Tray messages at the moment (let the WM handle it)
//window-specific property changes
/*}else if( ((xcb_client_message_event_t*)ev)->type == session->XCB->EWMH._NET_WM_STATE ){
if( session->XCB->WindowIsMaximized( ((xcb_client_message_event_t*)ev)->window ) ){
//Quick fix for maximized windows (since Fluxbox is not doing the STRUT detection properly)
session->adjustWindowGeom( ((xcb_client_message_event_t*)ev)->window );
}
session->WindowPropertyEvent( ((xcb_client_message_event_t*)ev)->window );*/
//}else if( WinNotifyAtoms.contains( ((xcb_client_message_event_t*)ev)->type ) ){
//Ping only that window
//session->WindowPropertyEvent( ((xcb_client_message_event_t*)ev)->window );
//session->WindowPropertyEvent();
//}
break;
//==============================
case XCB_DESTROY_NOTIFY:
qDebug() << "Window Closed Event";
//session->WindowClosedEvent( ( (xcb_destroy_notify_event_t*)ev )->window );
break;
//==============================
case XCB_CONFIGURE_NOTIFY:
qDebug() << "Configure Notify Event";
//session->WindowConfigureEvent( ((xcb_configure_notify_event_t*)ev)->window );
break;
//==============================
case XCB_SELECTION_CLEAR:
qDebug() << "Selection Clear Event";
//session->WindowSelectionClearEvent( ((xcb_selection_clear_event_t*)ev)->owner );
break;
//==============================
default:
//if(TrayDmgFlag!=0){
//if( (ev->response_type & ~0x80)==TrayDmgFlag){
//session->WindowDamageEvent( ((xcb_damage_notify_event_t*)ev)->drawable );
//}
//}
//else{
qDebug() << "Default Event:" << (ev->response_type & ~0x80);
//}
//==============================
}
}
//qDebug() << " - finished event";
return stopevent;
}
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