otk/eventdispatcher.cc (raw)
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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*- #ifdef HAVE_CONFIG_H # include "../config.h" #endif #include "eventdispatcher.hh" #include "display.hh" #include <iostream> namespace otk { OtkEventDispatcher::OtkEventDispatcher() : _fallback(0), _master(0), _focus(None) { _focus_e.xfocus.display = OBDisplay::display; _focus_e.xfocus.mode = NotifyNormal; _focus_e.xfocus.detail = NotifyNonlinear; _crossing_e.xcrossing.display = OBDisplay::display; _crossing_e.xcrossing.mode = NotifyNormal; _crossing_e.xcrossing.detail = NotifyNonlinear; } OtkEventDispatcher::~OtkEventDispatcher() { } void OtkEventDispatcher::clearAllHandlers(void) { _map.clear(); } void OtkEventDispatcher::registerHandler(Window id, OtkEventHandler *handler) { _map.insert(std::pair<Window, OtkEventHandler*>(id, handler)); } void OtkEventDispatcher::clearHandler(Window id) { _map.erase(id); } void OtkEventDispatcher::dispatchEvents(void) { OtkEventMap::iterator it; XEvent e; Window focus = None, unfocus = None; Window enter = None, leave = None; Window enter_root = None, leave_root = None; while (XPending(OBDisplay::display)) { XNextEvent(OBDisplay::display, &e); #if 0 printf("Event %d window %lx\n", e.type, e.xany.window); #endif // grab the lasttime switch (e.type) { case ButtonPress: case ButtonRelease: _lasttime = e.xbutton.time; break; case MotionNotify: _lasttime = e.xmotion.time; break; case PropertyNotify: _lasttime = e.xproperty.time; break; case EnterNotify: case LeaveNotify: _lasttime = e.xcrossing.time; break; } // these ConfigureRequests require some special attention if (e.type == ConfigureRequest) { // find the actual window! e.xany.window is the parent window it = _map.find(e.xconfigurerequest.window); if (it != _map.end()) it->second->handle(e); else { // unhandled configure requests must be used to configure the window // directly XWindowChanges xwc; xwc.x = e.xconfigurerequest.x; xwc.y = e.xconfigurerequest.y; xwc.width = e.xconfigurerequest.width; xwc.height = e.xconfigurerequest.height; xwc.border_width = e.xconfigurerequest.border_width; xwc.sibling = e.xconfigurerequest.above; xwc.stack_mode = e.xconfigurerequest.detail; XConfigureWindow(otk::OBDisplay::display, e.xconfigurerequest.window, e.xconfigurerequest.value_mask, &xwc); } // madly compress all focus events } else if (e.type == FocusIn) { // any other types are not ones we're interested in if (e.xfocus.detail == NotifyNonlinear) { focus = e.xfocus.window; unfocus = None; //printf("FocusIn focus=%lx unfocus=%lx\n", focus, unfocus); } } else if (e.type == FocusOut) { // any other types are not ones we're interested in if (e.xfocus.detail == NotifyNonlinear) { unfocus = e.xfocus.window; focus = None; //printf("FocusOut focus=%lx unfocus=%lx\n", focus, unfocus); } // madly compress all crossing events } else if (e.type == EnterNotify) { // any other types are not ones we're interested in if (e.xcrossing.mode == NotifyNormal) { // any other types are not ones we're interested in enter = e.xcrossing.window; enter_root = e.xcrossing.root; //printf("Enter enter=%lx leave=%lx\n", enter, leave); } } else if (e.type == LeaveNotify) { // any other types are not ones we're interested in if (e.xcrossing.mode == NotifyNormal) { leave = e.xcrossing.window; leave_root = e.xcrossing.root; //printf("Leave enter=%lx leave=%lx\n", enter, leave); } } else { // normal events dispatch(e); } } if (unfocus != None) { // the last focus event was an FocusOut, so where the hell is the focus at? //printf("UNFOCUSING: %lx\n", unfocus); _focus_e.xfocus.type = FocusOut; _focus_e.xfocus.window = unfocus; dispatch(_focus_e); _focus = None; } else if (focus != None && focus != _focus) { // the last focus event was a FocusIn, so unfocus what used to be focus and // focus this new target //printf("FOCUSING: %lx\n", focus); _focus_e.xfocus.type = FocusIn; _focus_e.xfocus.window = focus; dispatch(_focus_e); if (_focus != None) { //printf("UNFOCUSING: %lx\n", _focus); _focus_e.xfocus.type = FocusOut; _focus_e.xfocus.window = _focus; dispatch(_focus_e); } _focus = focus; } if (leave != None) { _crossing_e.xcrossing.type = LeaveNotify; _crossing_e.xcrossing.window = leave; _crossing_e.xcrossing.root = leave_root; dispatch(_crossing_e); } if (enter != None) { _crossing_e.xcrossing.type = EnterNotify; _crossing_e.xcrossing.window = enter; _crossing_e.xcrossing.root = enter_root; dispatch(_crossing_e); } } void OtkEventDispatcher::dispatch(const XEvent &e) { OtkEventHandler *handler; OtkEventMap::iterator it; if (_master) _master->handle(e); it = _map.find(e.xany.window); if (it != _map.end()) handler = it->second; else handler = _fallback; if (handler) handler->handle(e); } OtkEventHandler *OtkEventDispatcher::findHandler(Window win) { OtkEventMap::iterator it = _map.find(win); if (it != _map.end()) return it->second; return 0; } } |