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     // these ConfigureRequests require some special attention
  60     if (e.type == ConfigureRequest) {
  61       // find the actual window! e.xany.window is the parent window
  62       it = _map.find(e.xconfigurerequest.window);
  63
  64       if (it != _map.end())
  65         it->second->handle(e);
  66       else {
  67         // unhandled configure requests must be used to configure the window
  68         // directly
  69         XWindowChanges xwc;
  70
  71         xwc.x = e.xconfigurerequest.x;
  72         xwc.y = e.xconfigurerequest.y;
  73         xwc.width = e.xconfigurerequest.width;
  74         xwc.height = e.xconfigurerequest.height;
  75         xwc.border_width = e.xconfigurerequest.border_width;
  76         xwc.sibling = e.xconfigurerequest.above;
  77         xwc.stack_mode = e.xconfigurerequest.detail;
  78
  79         XConfigureWindow(otk::OBDisplay::display, e.xconfigurerequest.window,
  80                          e.xconfigurerequest.value_mask, &xwc);
  81       }
  82     // madly compress all focus events
  83     } else if (e.type == FocusIn) {
  84       // any other types are not ones we're interested in
  85       if (e.xfocus.detail == NotifyNonlinear) {
  86         focus = e.xfocus.window;
  87         unfocus = None;
  88         printf("FocusIn focus=%lx unfocus=%lx\n", focus, unfocus);
  89       }
  90     } else if (e.type == FocusOut) {
  91       // any other types are not ones we're interested in
  92       if (e.xfocus.detail == NotifyNonlinear) {
  93         unfocus = e.xfocus.window;
  94         focus = None;
  95         printf("FocusOut focus=%lx unfocus=%lx\n", focus, unfocus);
  96       }
  97 /*    // madly compress all crossing events
  98     } else if (e.type == EnterNotify) {
  99       // any other types are not ones we're interested in
 100       if (e.xcrossing.mode == NotifyNormal) {
 101         // any other types are not ones we're interested in
 102         enter = e.xcrossing.window;
 103         enter_root = e.xcrossing.root;
 104         printf("Enter enter=%lx leave=%lx\n", enter, leave);
 105       }
 106     } else if (e.type == LeaveNotify) {
 107       // any other types are not ones we're interested in
 108       if (e.xcrossing.mode == NotifyNormal) {
 109         leave = e.xcrossing.window;
 110         leave_root = e.xcrossing.root;
 111         printf("Leave enter=%lx leave=%lx\n", enter, leave);
 112         }*/
 113     } else {
 114       // normal events
 115       dispatch(e);
 116     }
 117   }
 118
 119   if (unfocus != None) {
 120     // the last focus event was an FocusOut, so where the hell is the focus at?
 121     printf("UNFOCUSING: %lx\n", unfocus);
 122     _focus_e.xfocus.type = FocusOut;
 123     _focus_e.xfocus.window = unfocus;
 124     dispatch(_focus_e);
 125
 126     _focus = None;
 127   } else if (focus != None) {
 128     // the last focus event was a FocusIn, so unfocus what used to be focus and
 129     // focus this new target
 130     if (_focus != None) {
 131       printf("UNFOCUSING: %lx\n", _focus);
 132       _focus_e.xfocus.type = FocusOut;
 133       _focus_e.xfocus.window = _focus;
 134       dispatch(_focus_e);
 135     }
 136     printf("FOCUSING: %lx\n", focus);
 137     _focus_e.xfocus.type = FocusIn;
 138     _focus_e.xfocus.window = focus;
 139     dispatch(_focus_e);
 140
 141     _focus = focus;
 142   }
 143
 144   if (leave != None) {
 145     _crossing_e.xcrossing.type = LeaveNotify;
 146     _crossing_e.xcrossing.window = leave;
 147     _crossing_e.xcrossing.root = leave_root;
 148     dispatch(_crossing_e);
 149   }
 150   if (enter != None) {
 151     _crossing_e.xcrossing.type = EnterNotify;
 152     _crossing_e.xcrossing.window = enter;
 153     _crossing_e.xcrossing.root = enter_root;
 154     dispatch(_crossing_e);
 155   }
 156 }
 157
 158 void OtkEventDispatcher::dispatch(const XEvent &e) {
 159   OtkEventHandler *handler;
 160   OtkEventMap::iterator it;
 161
 162   it = _map.find(e.xany.window);
 163
 164   if (it != _map.end())
 165     handler = it->second;
 166   else
 167     handler = _fallback;
 168
 169   if (handler)
 170     handler->handle(e);
 171
 172   if (_master)
 173     _master->handle(e);
 174 }
 175
 176 OtkEventHandler *OtkEventDispatcher::findHandler(Window win)
 177 {
 178   OtkEventMap::iterator it = _map.find(win);
 179   if (it != _map.end())
 180     return it->second;
 181   return 0;
 182 }
 183
 184 }