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.mode = NotifyNormal; _focus_e.xfocus.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 = _focus; Window unfocus = None; while (XPending(OBDisplay::display)) { XNextEvent(OBDisplay::display, &e); #if 0 printf("Event %d window %lx\n", e.type, e.xany.window); #endif // 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) { if (e.xfocus.window != focus) { if (focus) unfocus = focus; focus = e.xfocus.window; 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) { if (e.xfocus.window == focus) { unfocus = focus; focus = None; printf("FocusIn focus=%lx unfocus=%lx\n", focus, unfocus); } } } else { // normal events dispatch(e); } } if (focus != _focus) { _focus_e.xfocus.type = FocusIn; _focus_e.xfocus.window = focus; dispatch(_focus_e); _focus = focus; } if (unfocus != None) { _focus_e.xfocus.type = FocusOut; _focus_e.xfocus.window = unfocus; dispatch(_focus_e); } } void OtkEventDispatcher::dispatch(const XEvent &e) { OtkEventHandler *handler; OtkEventMap::iterator it; it = _map.find(e.xany.window); if (it != _map.end()) handler = it->second; else handler = _fallback; if (handler) handler->handle(e); if (_master) _master->handle(e); } OtkEventHandler *OtkEventDispatcher::findHandler(Window win) { OtkEventMap::iterator it = _map.find(win); if (it != _map.end()) return it->second; return 0; } } |