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 { EventDispatcher::EventDispatcher() : _fallback(0), _master(0) { } EventDispatcher::~EventDispatcher() { } void EventDispatcher::clearAllHandlers(void) { _map.clear(); } void EventDispatcher::registerHandler(Window id, EventHandler *handler) { _map.insert(std::pair<Window, EventHandler*>(id, handler)); } void EventDispatcher::clearHandler(Window id) { _map.erase(id); } void EventDispatcher::dispatchEvents(void) { XEvent e; while (XPending(**display)) { XNextEvent(**display, &e); #if 0//defined(DEBUG) printf("Event %d window %lx\n", e.type, e.xany.window); #endif if (e.type == FocusIn || e.type == FocusOut) { // focus events are a beast all their own.. yuk, hate, etc. dispatchFocus(e); } else { Window win; // pick a window switch (e.type) { case UnmapNotify: win = e.xunmap.window; break; case DestroyNotify: win = e.xdestroywindow.window; break; case ConfigureRequest: win = e.xconfigurerequest.window; break; default: win = e.xany.window; } // grab the lasttime and hack up the modifiers switch (e.type) { case ButtonPress: case ButtonRelease: _lasttime = e.xbutton.time; e.xbutton.state &= ~(LockMask | display->numLockMask() | display->scrollLockMask()); break; case KeyPress: e.xkey.state &= ~(LockMask | display->numLockMask() | display->scrollLockMask()); break; case MotionNotify: _lasttime = e.xmotion.time; e.xmotion.state &= ~(LockMask | display->numLockMask() | display->scrollLockMask()); break; case PropertyNotify: _lasttime = e.xproperty.time; break; case EnterNotify: case LeaveNotify: _lasttime = e.xcrossing.time; break; } dispatch(win, e); } } } void EventDispatcher::dispatchFocus(const XEvent &e) { // ignore focus changes from grabs if (e.xfocus.mode == NotifyGrab) return; if (e.type == FocusIn) { //printf("Got FocusIn!\n"); // send a FocusIn to whatever was just focused dispatch(e.xfocus.window, e); //printf("Sent FocusIn 0x%lx\n", e.xfocus.window); } else if (e.type == FocusOut) { //printf("Got FocusOut!\n"); // FocusOut events just make us look for FocusIn events. They are ignored // otherwise. XEvent fi; if (XCheckTypedEvent(**display, FocusIn, &fi)) { //printf("Found FocusIn\n"); dispatchFocus(fi); // dont unfocus the window we just focused! if (fi.xfocus.window == e.xfocus.window) return; } dispatch(e.xfocus.window, e); //printf("Sent FocusOut 0x%lx\n", e.xfocus.window); } } void EventDispatcher::dispatch(Window win, const XEvent &e) { EventHandler *handler = 0; EventMap::iterator it; // master gets everything first if (_master) _master->handle(e); // find handler for the chosen window it = _map.find(win); if (it != _map.end()) { // if we found a handler handler = it->second; } else if (e.type == ConfigureRequest) { // 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(**display, e.xconfigurerequest.window, e.xconfigurerequest.value_mask, &xwc); } else { // grab a falback if it exists handler = _fallback; } if (handler) handler->handle(e); } EventHandler *EventDispatcher::findHandler(Window win) { EventMap::iterator it = _map.find(win); if (it != _map.end()) return it->second; return 0; } } |