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   OtkEventMap::iterator it;
  47   XEvent e;
  48   Window focus = None, unfocus = None;
  49   Window enter = None, leave = None;
  50   Window enter_root = None, leave_root = None;
  51
  52   while (XPending(OBDisplay::display)) {
  53     XNextEvent(OBDisplay::display, &e);
  54
  55 #if 0
  56     printf("Event %d window %lx\n", e.type, e.xany.window);
  57 #endif
  58
  59     printf("num=%u scroll=%u\n", OBDisplay::numLockMask(), OBDisplay::scrollLockMask());
  60
  61     // grab the lasttime and hack up the modifiers
  62     switch (e.type) {
  63     case ButtonPress:
  64     case ButtonRelease:
  65       _lasttime = e.xbutton.time;
  66       e.xbutton.state &= ~(LockMask | OBDisplay::numLockMask() |
  67                            OBDisplay::scrollLockMask());
  68       break;
  69     case KeyPress:
  70       e.xkey.state &= ~(LockMask | OBDisplay::numLockMask() |
  71                         OBDisplay::scrollLockMask());
  72       break;
  73     case MotionNotify:
  74       _lasttime = e.xmotion.time;
  75       e.xmotion.state &= ~(LockMask | OBDisplay::numLockMask() |
  76                            OBDisplay::scrollLockMask());
  77       break;
  78     case PropertyNotify:
  79       _lasttime = e.xproperty.time; break;
  80     case EnterNotify:
  81     case LeaveNotify:
  82       _lasttime = e.xcrossing.time; break;
  83     }
  84
  85     // these ConfigureRequests require some special attention
  86     if (e.type == ConfigureRequest) {
  87       // find the actual window! e.xany.window is the parent window
  88       it = _map.find(e.xconfigurerequest.window);
  89
  90       if (it != _map.end())
  91         it->second->handle(e);
  92       else {
  93         // unhandled configure requests must be used to configure the window
  94         // directly
  95         XWindowChanges xwc;
  96
  97         xwc.x = e.xconfigurerequest.x;
  98         xwc.y = e.xconfigurerequest.y;
  99         xwc.width = e.xconfigurerequest.width;
 100         xwc.height = e.xconfigurerequest.height;
 101         xwc.border_width = e.xconfigurerequest.border_width;
 102         xwc.sibling = e.xconfigurerequest.above;
 103         xwc.stack_mode = e.xconfigurerequest.detail;
 104
 105         XConfigureWindow(otk::OBDisplay::display, e.xconfigurerequest.window,
 106                          e.xconfigurerequest.value_mask, &xwc);
 107       }
 108     // madly compress all focus events
 109     } else if (e.type == FocusIn) {
 110       // any other types are not ones we're interested in
 111       if (e.xfocus.detail == NotifyNonlinear) {
 112         focus = e.xfocus.window;
 113         unfocus = None;
 114         //printf("FocusIn focus=%lx unfocus=%lx\n", focus, unfocus);
 115       }
 116     } else if (e.type == FocusOut) {
 117       // any other types are not ones we're interested in
 118       if (e.xfocus.detail == NotifyNonlinear) {
 119         unfocus = e.xfocus.window;
 120         focus = None;
 121         //printf("FocusOut focus=%lx unfocus=%lx\n", focus, unfocus);
 122       }
 123     // madly compress all crossing events
 124     } else if (e.type == EnterNotify) {
 125       // any other types are not ones we're interested in
 126       if (e.xcrossing.mode == NotifyNormal) {
 127         // any other types are not ones we're interested in
 128         enter = e.xcrossing.window;
 129         enter_root = e.xcrossing.root;
 130         //printf("Enter enter=%lx leave=%lx\n", enter, leave);
 131       }
 132     } else if (e.type == LeaveNotify) {
 133       // any other types are not ones we're interested in
 134       if (e.xcrossing.mode == NotifyNormal) {
 135         leave = e.xcrossing.window;
 136         leave_root = e.xcrossing.root;
 137         //printf("Leave enter=%lx leave=%lx\n", enter, leave);
 138       }
 139     } else {
 140       // normal events
 141       dispatch(e);
 142     }
 143   }
 144
 145   if (unfocus != None) {
 146     // the last focus event was an FocusOut, so where the hell is the focus at?
 147     //printf("UNFOCUSING: %lx\n", unfocus);
 148     _focus_e.xfocus.type = FocusOut;
 149     _focus_e.xfocus.window = unfocus;
 150     dispatch(_focus_e);
 151
 152     _focus = None;
 153   } else if (focus != None && focus != _focus) {
 154     // the last focus event was a FocusIn, so unfocus what used to be focus and
 155     // focus this new target
 156     //printf("FOCUSING: %lx\n", focus);
 157     _focus_e.xfocus.type = FocusIn;
 158     _focus_e.xfocus.window = focus;
 159     dispatch(_focus_e);
 160
 161     if (_focus != None) {
 162       //printf("UNFOCUSING: %lx\n", _focus);
 163       _focus_e.xfocus.type = FocusOut;
 164       _focus_e.xfocus.window = _focus;
 165       dispatch(_focus_e);
 166     }
 167
 168     _focus = focus;
 169   }
 170
 171   if (leave != None) {
 172     _crossing_e.xcrossing.type = LeaveNotify;
 173     _crossing_e.xcrossing.window = leave;
 174     _crossing_e.xcrossing.root = leave_root;
 175     dispatch(_crossing_e);
 176   }
 177   if (enter != None) {
 178     _crossing_e.xcrossing.type = EnterNotify;
 179     _crossing_e.xcrossing.window = enter;
 180     _crossing_e.xcrossing.root = enter_root;
 181     dispatch(_crossing_e);
 182   }
 183 }
 184
 185 void OtkEventDispatcher::dispatch(const XEvent &e) {
 186   OtkEventHandler *handler;
 187   OtkEventMap::iterator it;
 188
 189   if (_master)
 190     _master->handle(e);
 191
 192   it = _map.find(e.xany.window);
 193
 194   if (it != _map.end())
 195     handler = it->second;
 196   else
 197     handler = _fallback;
 198
 199   if (handler)
 200     handler->handle(e);
 201 }
 202
 203 OtkEventHandler *OtkEventDispatcher::findHandler(Window win)
 204 {
 205   OtkEventMap::iterator it = _map.find(win);
 206   if (it != _map.end())
 207     return it->second;
 208   return 0;
 209 }
 210
 211 }