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Diffstat (limited to 'src-qt5/src-cpp/NativeEventFilter.cpp')
| -rw-r--r-- | src-qt5/src-cpp/NativeEventFilter.cpp | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/src-qt5/src-cpp/NativeEventFilter.cpp b/src-qt5/src-cpp/NativeEventFilter.cpp new file mode 100644 index 00000000..c13c1fc8 --- /dev/null +++ b/src-qt5/src-cpp/NativeEventFilter.cpp @@ -0,0 +1,300 @@ +//=========================================== +// Lumina-desktop source code +// Copyright (c) 2015-2017, Ken Moore +// Available under the 3-clause BSD license +// See the LICENSE file for full details +//=========================================== +#include "NativeEventFilter.h" +#include <QCoreApplication> +#include <QDebug> + +//#include <xcb/xcb_aux.h> +//#include <xcb/damage.h> + +//================================================== +// NOTE: All the XCB interactions and atoms are accessed via: +// obj->XCB->EWMH.(atom name) +// obj->XCB->(do something) +//================================================== + +/* +List of XCB response types (since almost impossible to find good docs on XCB) +switch (xcb_generic_event_t*->response_type & ~0x80) +case values: +XCB_KEY_[PRESS | RELEASE] +XCB_BUTTON_[PRESS | RELEASE] +XCB_MOTION_NOTIFY +XCB_ENTER_NOTIFY +XCB_LEAVE_NOTIFY +XCB_FOCUS_[IN | OUT] +XCB_KEYMAP_NOTIFY +XCB_EXPOSE +XCB_GRAPHICS_EXPOSURE +XCB_VISIBILITY_NOTIFY +XCB_CREATE_NOTIFY +XCB_DESTROY_NOTIFY +XCB_UNMAP_NOTIFY +XCB_MAP_[NOTIFY | REQUEST] +XCB_REPARENT_NOTIFY +XCB_CONFIGURE_[NOTIFY | REQUEST] +XCB_GRAVITY_NOTIFY +XCB_RESIZE_REQUEST +XCB_CIRCULATE_[NOTIFY | REQUEST] +XCB_PROPERTY_NOTIFY +XCB_SELECTION_[CLEAR | REQUEST | NOTIFY] +XCB_COLORMAP_NOTIFY +XCB_CLIENT_MESSAGE +*/ + +//SYSTEM TRAY STANDARD DEFINITIONS +#define SYSTEM_TRAY_REQUEST_DOCK 0 +#define SYSTEM_TRAY_BEGIN_MESSAGE 1 +#define SYSTEM_TRAY_CANCEL_MESSAGE 2 + +//#include <LuminaX11.h> +#include <QX11Info> +#include <xcb/xcb_ewmh.h> +#include <xcb/xcb_keysyms.h> +#include <xcb/damage.h> + +#define DEBUG 0 + +//Special objects/variables for XCB parsing +static xcb_ewmh_connection_t EWMH; +//static LXCB *XCB = 0; +static xcb_atom_t _NET_SYSTEM_TRAY_OPCODE = 0; + +inline void ParsePropertyEvent(xcb_property_notify_event_t *ev, NativeEventFilter *obj){ + //qDebug() << "Got Property Event:" << ev->window << ev->atom; + NativeWindow::Property prop = NativeWindow::None; + //Now determine which properties are getting changed, and update the native window as appropriate + if(ev->atom == EWMH._NET_WM_NAME){ prop = NativeWindow::Title; } + else if(ev->atom == EWMH._NET_WM_ICON){ prop = NativeWindow::Icon; } + else if(ev->atom == EWMH._NET_WM_ICON_NAME){ prop = NativeWindow::ShortTitle; } + else if(ev->atom == EWMH._NET_WM_DESKTOP){ prop = NativeWindow::Workspace; } + else if(ev->atom == EWMH._NET_WM_WINDOW_TYPE ){ prop = NativeWindow::WinTypes; } + else if( ev->atom == EWMH._NET_WM_STATE){ prop = NativeWindow::States; } + //Send out the signal if necessary + if(prop!=NativeWindow::None){ + //if(DEBUG){ + //qDebug() << "Detected Property Change:" << ev->window << prop; + //} + obj->emit WindowPropertyChanged(ev->window, prop); + }else{ + //Quick re-check of the simple properties (nothing like the icon or other graphics) + obj->emit WindowPropertiesChanged(ev->window, QList<NativeWindow::Property>() << NativeWindow::Title + << NativeWindow::ShortTitle << NativeWindow::Workspace ); + //qDebug() << "Unknown Property Change:" << ev->window << ev->atom; + } +} + +inline void ParseClientMessageEvent(xcb_client_message_event_t *ev, NativeEventFilter *obj){ + NativeWindow::Property prop = NativeWindow::None; + QVariant val; + if(ev->type==EWMH._NET_WM_NAME){ prop = NativeWindow::Title; } + else if(ev->type==EWMH._NET_WM_ICON){ prop = NativeWindow::Icon; } + else if(ev->type==EWMH._NET_WM_ICON_NAME){ prop = NativeWindow::ShortTitle; } + else if(ev->type==EWMH._NET_WM_DESKTOP){ + prop = NativeWindow::Workspace; + val = QVariant( (int) ev->data.data32[0] ); + }else if(ev->type==EWMH._NET_WM_WINDOW_TYPE){ prop = NativeWindow::WinTypes; } + else if(ev->type==EWMH._NET_WM_STATE){ prop = NativeWindow::States; } + + if(prop!=NativeWindow::None){ + //if(DEBUG){ + qDebug() << "Detected Property Change Request:" << ev->window << prop; //} + if(val.isNull()){ obj->emit WindowPropertyChanged(ev->window, prop); } + else{ obj->emit RequestWindowPropertyChange(ev->window, prop, val); } + } + +} + + +//Constructor for the Event Filter wrapper +NativeEventFilter::NativeEventFilter() : QObject(){ + EF = new EventFilter(this); + if(EWMH.nb_screens <=0){ + xcb_intern_atom_cookie_t *cookie = xcb_ewmh_init_atoms(QX11Info::connection(), &EWMH); + if(!xcb_ewmh_init_atoms_replies(&EWMH, cookie, NULL) ){ + qDebug() << "Error with XCB atom initializations"; + } + } + if(_NET_SYSTEM_TRAY_OPCODE==0){ + //_NET_SYSTEM_TRAY_OPCODE + xcb_intern_atom_cookie_t cookie = xcb_intern_atom(QX11Info::connection(), 0, 23,"_NET_SYSTEM_TRAY_OPCODE"); + xcb_intern_atom_reply_t *r = xcb_intern_atom_reply(QX11Info::connection(), cookie, NULL); + if(r){ + _NET_SYSTEM_TRAY_OPCODE = r->atom; + free(r); + } + } +} + +void NativeEventFilter::start(){ + if(DEBUG){ qDebug() << " - Install event filter..."; } + QCoreApplication::instance()->installNativeEventFilter(EF); + if(DEBUG){ qDebug() << " - Run request check..."; } + +} + +void NativeEventFilter::stop(){ + QCoreApplication::instance()->installNativeEventFilter(0); +} + +//============================= +// EventFilter Class +//============================= + +//Constructor for the XCB event filter +EventFilter::EventFilter(NativeEventFilter *parent) : QAbstractNativeEventFilter(){ + obj = parent; +} + +//This function format taken directly from the Qt5.3 documentation +bool EventFilter::nativeEventFilter(const QByteArray &eventType, void *message, long *){ + //qDebug() << "New Event"; + 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){ +//============================== +// INTERACTIVITY EVENTS +//============================== + case XCB_KEY_PRESS: + //This is a keyboard key press + //qDebug() << "Key Press Event" + obj->emit KeyPressed( ((xcb_key_press_event_t *) ev)->detail, ((xcb_key_press_event_t *) ev)->root ); + break; + case XCB_KEY_RELEASE: + //This is a keyboard key release + //qDebug() << "Key Release Event"; + obj->emit KeyReleased( ((xcb_key_release_event_t *) ev)->detail, ((xcb_key_release_event_t *) ev)->root ); + break; + case XCB_BUTTON_PRESS: + //This is a mouse button press + //qDebug() << "Button Press Event"; + obj->emit MousePressed( ((xcb_button_press_event_t *) ev)->detail, ((xcb_button_press_event_t *) ev)->root ); + break; + case XCB_BUTTON_RELEASE: + //This is a mouse button release + //qDebug() << "Button Release Event"; + obj->emit MouseReleased( ((xcb_button_release_event_t *) ev)->detail, ((xcb_button_release_event_t *) ev)->root ); + break; + case XCB_MOTION_NOTIFY: + //This is a mouse movement event + if(DEBUG){ qDebug() << "Motion Notify Event"; } + obj->emit MouseMovement(); + break; + case XCB_ENTER_NOTIFY: + //This is a mouse movement event when mouse goes over a new window + //qDebug() << "Enter Notify Event"; + obj->emit MouseEnterWindow( ((xcb_enter_notify_event_t *) ev)->root ); + break; + case XCB_LEAVE_NOTIFY: + //This is a mouse movement event when mouse goes leaves a window + //qDebug() << "Leave Notify Event"; + obj->emit MouseLeaveWindow( ((xcb_leave_notify_event_t *) ev)->root ); + break; +//============================== + case XCB_EXPOSE: + //qDebug() << "Expose Notify Event:"; + //qDebug() << " - Given Window:" << ((xcb_property_notify_event_t*)ev)->window; + break; +//============================== + case XCB_MAP_NOTIFY: + //qDebug() << "Window Map Event:" << ((xcb_map_notify_event_t *)ev)->window; + obj->emit WindowPropertyChanged( ((xcb_map_notify_event_t *)ev)->window, NativeWindow::Visible, true); + break; //This is just a notification that a window was mapped - nothing needs to change here + case XCB_MAP_REQUEST: + //qDebug() << "Window Map Request Event"; + obj->emit WindowCreated( ((xcb_map_request_event_t *) ev)->window ); + break; +//============================== + case XCB_CREATE_NOTIFY: + //qDebug() << "Window Create Event"; + break; +//============================== + case XCB_UNMAP_NOTIFY: + //qDebug() << "Window Unmap Event:" << ((xcb_unmap_notify_event_t *)ev)->window; + obj->emit WindowPropertyChanged( ((xcb_map_notify_event_t *)ev)->window, NativeWindow::Visible, false); + break; +//============================== + case XCB_DESTROY_NOTIFY: + //qDebug() << "Window Closed Event:" << ((xcb_destroy_notify_event_t *)ev)->window; + obj->emit WindowDestroyed( ((xcb_destroy_notify_event_t *) ev)->window ); + break; +//============================== + case XCB_FOCUS_IN: + //qDebug() << "Focus In Event:"; + break; +//============================== + case XCB_FOCUS_OUT: + //qDebug() << "Focus Out Event:"; + break; +//============================== + case XCB_PROPERTY_NOTIFY: + //qDebug() << "Property Notify Event:"; + ParsePropertyEvent((xcb_property_notify_event_t*)ev, obj); + break; +//============================== + case XCB_CLIENT_MESSAGE: + //qDebug() << "Client Message Event"; + //qDebug() << " - Given Window:" << ((xcb_client_message_event_t*)ev)->window; + if( ((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]){ + obj->emit TrayWindowCreated( ((xcb_client_message_event_t*)ev)->data.data32[2] ); + //addTrayApp( ((xcb_client_message_event_t*)ev)->data.data32[2] ); + } + //Ignore the System Tray messages at the moment + }else if(((xcb_client_message_event_t*)ev)->window != QX11Info::appRootWindow()){ + ParseClientMessageEvent((xcb_client_message_event_t*)ev, obj); + } + break; +//============================== + case XCB_CONFIGURE_NOTIFY: + //qDebug() << "Configure Notify Event"; + /*obj->emit WindowPropertiesChanged( ((xcb_configure_notify_event_t*)ev)->window, + QList<NativeWindow::Property>() << NativeWindow::GlobalPos << NativeWindow::Size, + QList<QVariant>() << QPoint(((xcb_configure_notify_event_t*)ev)->x, ((xcb_configure_notify_event_t*)ev)->y) << + QSize(((xcb_configure_notify_event_t*)ev)->width, ((xcb_configure_notify_event_t*)ev)->height) );*/ + obj->emit WindowPropertyChanged( ((xcb_configure_notify_event_t*)ev)->window, NativeWindow::Size, + QSize(((xcb_configure_notify_event_t*)ev)->width, ((xcb_configure_notify_event_t*)ev)->height) ); + break; +//============================== + case XCB_CONFIGURE_REQUEST: + //qDebug() << "Configure Request Event"; + obj->emit RequestWindowPropertiesChange( ((xcb_configure_request_event_t*)ev)->window, + QList<NativeWindow::Property>() << NativeWindow::GlobalPos << NativeWindow::Size, + QList<QVariant>() << QPoint(((xcb_configure_request_event_t*)ev)->x, ((xcb_configure_request_event_t*)ev)->y) << + QSize(((xcb_configure_request_event_t*)ev)->width, ((xcb_configure_request_event_t*)ev)->height) ); + break; +//============================== + case XCB_RESIZE_REQUEST: + //qDebug() << "Resize Request Event"; + obj->emit RequestWindowPropertyChange( ((xcb_resize_request_event_t*)ev)->window, + NativeWindow::Size, QSize(((xcb_resize_request_event_t*)ev)->width, ((xcb_resize_request_event_t*)ev)->height) ); + break; +//============================== + case XCB_SELECTION_CLEAR: + //qDebug() << "Selection Clear Event"; + break; +//============================== + case 85: //not sure what event this is - but it seems to come up very often (just hide the notice) + case 0: + case XCB_GE_GENERIC: + break; //generic event - don't do anything special + default: + //if( (ev->response_type & ~0x80)==TrayDmgID){ + obj->emit PossibleDamageEvent( ((xcb_damage_notify_event_t*)ev)->drawable ); + //checkDamageID( ((xcb_damage_notify_event_t*)ev)->drawable ); + //}else{ + //qDebug() << "Default Event:" << (ev->response_type & ~0x80); + //} +//============================== + } + } + return false; + //never stop event handling (this will not impact the X events themselves - just the internal Qt application) +} |