Dogcows Code - chaz/openbox/blob - otk/eventdispatcher.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef HAVE_CONFIG_H
   4 # include "../config.h"
   5 #endif
   6
   7 #include "eventdispatcher.hh"
   8 #include "display.hh"
   9 #include <iostream>
  10
  11 namespace otk {
  12
  13 OtkEventDispatcher::OtkEventDispatcher()
  14   : _fallback(0), _master(0), _focus(None)
  15 {
  16   _focus_e.xfocus.display = OBDisplay::display;
  17   _focus_e.xfocus.mode = NotifyNormal;
  18   _focus_e.xfocus.detail = NotifyNonlinear;
  19
  20   _crossing_e.xcrossing.display = OBDisplay::display;
  21   _crossing_e.xcrossing.mode = NotifyNormal;
  22   _crossing_e.xcrossing.detail = NotifyNonlinear;
  23 }
  24
  25 OtkEventDispatcher::~OtkEventDispatcher()
  26 {
  27 }
  28
  29 void OtkEventDispatcher::clearAllHandlers(void)
  30 {
  31   _map.clear();
  32 }
  33
  34 void OtkEventDispatcher::registerHandler(Window id, OtkEventHandler *handler)
  35 {
  36   _map.insert(std::pair<Window, OtkEventHandler*>(id, handler));
  37 }
  38
  39 void OtkEventDispatcher::clearHandler(Window id)
  40 {
  41   _map.erase(id);
  42 }
  43
  44 void OtkEventDispatcher::dispatchEvents(void)
  45 {
  46   XEvent e;
  47   Window focus = None, unfocus = None;
  48 /*  Window enter = None, leave = None;
  49   Window enter_root = None, leave_root = None;*/
  50
  51   while (XPending(OBDisplay::display)) {
  52     XNextEvent(OBDisplay::display, &e);
  53
  54 #if 0//defined(DEBUG)
  55     printf("Event %d window %lx\n", e.type, e.xany.window);
  56 #endif
  57
  58     Window win;
  59
  60     // pick a window
  61     switch (e.type) {
  62     case UnmapNotify:
  63       win = e.xunmap.window;
  64       break;
  65     case DestroyNotify:
  66       win = e.xdestroywindow.window;
  67       break;
  68     case ConfigureRequest:
  69       win = e.xconfigurerequest.window;
  70       break;
  71     default:
  72       win = e.xany.window;
  73     }
  74
  75     // grab the lasttime and hack up the modifiers
  76     switch (e.type) {
  77     case ButtonPress:
  78     case ButtonRelease:
  79       _lasttime = e.xbutton.time;
  80       e.xbutton.state &= ~(LockMask | OBDisplay::numLockMask() |
  81                            OBDisplay::scrollLockMask());
  82       break;
  83     case KeyPress:
  84       e.xkey.state &= ~(LockMask | OBDisplay::numLockMask() |
  85                         OBDisplay::scrollLockMask());
  86       break;
  87     case MotionNotify:
  88       _lasttime = e.xmotion.time;
  89       e.xmotion.state &= ~(LockMask | OBDisplay::numLockMask() |
  90                            OBDisplay::scrollLockMask());
  91       break;
  92     case PropertyNotify:
  93       _lasttime = e.xproperty.time;
  94       break;
  95     case EnterNotify:
  96     case LeaveNotify:
  97       _lasttime = e.xcrossing.time;
  98       break;
  99     }
 100
 101     // madly compress all focus events
 102     if (e.type == FocusIn) {
 103       // any other types are not ones we're interested in
 104       if (e.xfocus.detail == NotifyNonlinear) {
 105         focus = e.xfocus.window;
 106         unfocus = None;
 107         //printf("FocusIn focus=%lx unfocus=%lx\n", focus, unfocus);
 108       }
 109     } else if (e.type == FocusOut) {
 110       // any other types are not ones we're interested in
 111       if (e.xfocus.detail == NotifyNonlinear) {
 112         unfocus = e.xfocus.window;
 113         focus = None;
 114         //printf("FocusOut focus=%lx unfocus=%lx\n", focus, unfocus);
 115         }
 116     /*
 117     // madly compress all crossing events
 118     } else if (e.type == EnterNotify) {
 119       // any other types are not ones we're interested in
 120       if (e.xcrossing.mode == NotifyNormal) {
 121         // any other types are not ones we're interested in
 122         enter = e.xcrossing.window;
 123         enter_root = e.xcrossing.root;
 124         //printf("Enter enter=%lx leave=%lx\n", enter, leave);
 125       }
 126     } else if (e.type == LeaveNotify) {
 127       // any other types are not ones we're interested in
 128       if (e.xcrossing.mode == NotifyNormal) {
 129         leave = e.xcrossing.window;
 130         leave_root = e.xcrossing.root;
 131         //printf("Leave enter=%lx leave=%lx\n", enter, leave);
 132       }
 133     */
 134     } else {
 135       // normal events
 136       dispatch(win, e);
 137     }
 138   }
 139
 140   if (unfocus != None) {
 141     // the last focus event was an FocusOut, so where the hell is the focus at?
 142     //printf("UNFOCUSING: %lx\n", unfocus);
 143     _focus_e.xfocus.type = FocusOut;
 144     _focus_e.xfocus.window = unfocus;
 145     dispatch(_focus_e.xfocus.window, _focus_e);
 146
 147     _focus = None;
 148   } else if (focus != None && focus != _focus) {
 149     // the last focus event was a FocusIn, so unfocus what used to be focus and
 150     // focus this new target
 151     //printf("FOCUSING: %lx\n", focus);
 152     _focus_e.xfocus.type = FocusIn;
 153     _focus_e.xfocus.window = focus;
 154     dispatch(_focus_e.xfocus.window, _focus_e);
 155
 156     if (_focus != None) {
 157       //printf("UNFOCUSING: %lx\n", _focus);
 158       _focus_e.xfocus.type = FocusOut;
 159       _focus_e.xfocus.window = _focus;
 160       dispatch(_focus_e.xfocus.window, _focus_e);
 161     }
 162
 163     _focus = focus;
 164   }
 165   /*
 166   if (leave != None) {
 167     _crossing_e.xcrossing.type = LeaveNotify;
 168     _crossing_e.xcrossing.window = leave;
 169     _crossing_e.xcrossing.root = leave_root;
 170     dispatch(_crossing_e.xcrossing.window, _crossing_e);
 171   }
 172   if (enter != None) {
 173     _crossing_e.xcrossing.type = EnterNotify;
 174     _crossing_e.xcrossing.window = enter;
 175     _crossing_e.xcrossing.root = enter_root;
 176     dispatch(_crossing_e.xcrossing.window, _crossing_e);
 177     }*/
 178 }
 179
 180 void OtkEventDispatcher::dispatch(Window win, const XEvent &e) {
 181   OtkEventHandler *handler = 0;
 182   OtkEventMap::iterator it;
 183
 184   if (_master)
 185     _master->handle(e);
 186
 187   it = _map.find(win);
 188
 189   if (it != _map.end())
 190     handler = it->second;
 191   // these ConfigureRequests require some special attention
 192   else if (e.type == ConfigureRequest) {
 193     // unhandled configure requests must be used to configure the window
 194     // directly
 195     XWindowChanges xwc;
 196
 197     xwc.x = e.xconfigurerequest.x;
 198     xwc.y = e.xconfigurerequest.y;
 199     xwc.width = e.xconfigurerequest.width;
 200     xwc.height = e.xconfigurerequest.height;
 201     xwc.border_width = e.xconfigurerequest.border_width;
 202     xwc.sibling = e.xconfigurerequest.above;
 203     xwc.stack_mode = e.xconfigurerequest.detail;
 204
 205     XConfigureWindow(otk::OBDisplay::display, e.xconfigurerequest.window,
 206                      e.xconfigurerequest.value_mask, &xwc);
 207   } else
 208     handler = _fallback;
 209
 210   if (handler)
 211     handler->handle(e);
 212 }
 213
 214 OtkEventHandler *OtkEventDispatcher::findHandler(Window win)
 215 {
 216   OtkEventMap::iterator it = _map.find(win);
 217   if (it != _map.end())
 218     return it->second;
 219   return 0;
 220 }
 221
 222 }