src/cycling.c

   1 /* cycling.c- window cycling
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 2000-2003 Alfredo K. Kojima
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20  *  USA.
  21  */
  22
  23 #include "wconfig.h"
  24
  25 #include <X11/Xlib.h>
  26 #include <X11/Xutil.h>
  27 #include <X11/keysym.h>
  28
  29 #include "WindowMaker.h"
  30 #include "GNUstep.h"
  31 #include "screen.h"
  32 #include "wcore.h"
  33 #include "window.h"
  34 #include "framewin.h"
  35 #include "keybind.h"
  36 #include "actions.h"
  37 #include "stacking.h"
  38 #include "funcs.h"
  39 #include "xinerama.h"
  40 #include "switchpanel.h"
  41
  42 /* Globals */
  43 extern WPreferences wPreferences;
  44
  45 extern WShortKey wKeyBindings[WKBD_LAST];
  46
  47
  48 static void raiseWindow(WSwitchPanel *swpanel, WWindow *wwin)
  49 {
  50     if (wwin->flags.mapped) {
  51         Window win[2];
  52
  53         win[0]= wSwitchPanelGetWindow(swpanel);
  54         win[1]= wwin->frame->core->window;
  55
  56         XRestackWindows(dpy, win, 2);
  57     }
  58 }
  59
  60
  61
  62 void
  63 StartWindozeCycle(WWindow *wwin, XEvent *event, Bool next)
  64 {
  65     WScreen *scr = wScreenForRootWindow(event->xkey.root);
  66     Bool done = False;
  67     WWindow *newFocused;
  68     WWindow *oldFocused;
  69     int modifiers;
  70     XModifierKeymap *keymap = NULL;
  71     Bool hasModifier;
  72     Bool somethingElse = False;
  73     XEvent ev;
  74     WSwitchPanel *swpanel = NULL;
  75     KeyCode leftKey, rightKey, homeKey, endKey;
  76
  77     if (!wwin)
  78         return;
  79
  80     leftKey = XKeysymToKeycode(dpy, XK_Left);
  81     rightKey = XKeysymToKeycode(dpy, XK_Right);
  82     homeKey = XKeysymToKeycode(dpy, XK_Home);
  83     endKey = XKeysymToKeycode(dpy, XK_End);
  84
  85     if (next)
  86         hasModifier = (wKeyBindings[WKBD_FOCUSNEXT].modifier != 0);
  87     else
  88         hasModifier = (wKeyBindings[WKBD_FOCUSPREV].modifier != 0);
  89
  90     if (hasModifier) {
  91         keymap = XGetModifierMapping(dpy);
  92
  93 #ifdef DEBUG
  94         printf("Grabbing keyboard\n");
  95 #endif
  96         XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync,
  97                       CurrentTime);
  98     }
  99
 100     scr->flags.doing_alt_tab = 1;
 101
 102     swpanel =  wInitSwitchPanel(scr, wwin, scr->current_workspace);
 103     oldFocused = wwin;
 104
 105     if (swpanel) {
 106         newFocused = wSwitchPanelSelectNext(swpanel, !next);
 107         if (newFocused) {
 108             wWindowFocus(newFocused, oldFocused);
 109             oldFocused = newFocused;
 110
 111             if (wPreferences.circ_raise)
 112               raiseWindow(swpanel, newFocused);
 113         }
 114     }
 115     else
 116     {
 117         if (wwin->frame->workspace == scr->current_workspace)
 118             newFocused= wwin;
 119         else
 120             newFocused= NULL;
 121     }
 122
 123     while (hasModifier && !done) {
 124         int i;
 125
 126         WMMaskEvent(dpy, KeyPressMask|KeyReleaseMask|ExposureMask
 127                     |PointerMotionMask|ButtonReleaseMask, &ev);
 128
 129         /* ignore CapsLock */
 130         modifiers = ev.xkey.state & ValidModMask;
 131
 132         switch (ev.type) {
 133         case KeyPress:
 134 #ifdef DEBUG
 135             printf("Got key press\n");
 136 #endif
 137             if ((wKeyBindings[WKBD_FOCUSNEXT].keycode == ev.xkey.keycode
 138                  && wKeyBindings[WKBD_FOCUSNEXT].modifier == modifiers)
 139                 || ev.xkey.keycode == rightKey) {
 140
 141                 if (swpanel) {
 142                     newFocused = wSwitchPanelSelectNext(swpanel, False);
 143                     if (newFocused) {
 144                         wWindowFocus(newFocused, oldFocused);
 145                         oldFocused = newFocused;
 146
 147                         if (wPreferences.circ_raise) {
 148                             CommitStacking(scr);
 149                             raiseWindow(swpanel, newFocused);
 150                         }
 151                     }
 152                 }
 153             } else if ((wKeyBindings[WKBD_FOCUSPREV].keycode == ev.xkey.keycode
 154                         && wKeyBindings[WKBD_FOCUSPREV].modifier == modifiers)
 155                        || ev.xkey.keycode == leftKey) {
 156
 157                 if (swpanel) {
 158                     newFocused = wSwitchPanelSelectNext(swpanel, True);
 159                     if (newFocused) {
 160                         wWindowFocus(newFocused, oldFocused);
 161                         oldFocused = newFocused;
 162
 163                         if (wPreferences.circ_raise) {
 164                             CommitStacking(scr);
 165                             raiseWindow(swpanel, newFocused);
 166                         }
 167                     }
 168                 }
 169             } else if (ev.xkey.keycode == homeKey || ev.xkey.keycode == endKey) {
 170                 if (swpanel) {
 171                     newFocused = wSwitchPanelSelectFirst(swpanel, ev.xkey.keycode != homeKey);
 172                     if (newFocused) {
 173                         wWindowFocus(newFocused, oldFocused);
 174                         oldFocused = newFocused;
 175
 176                         if (wPreferences.circ_raise) {
 177                             CommitStacking(scr);
 178                             raiseWindow(swpanel, newFocused);
 179                         }
 180                     }
 181                 }
 182             } else {
 183 #ifdef DEBUG
 184                 printf("Got something else\n");
 185 #endif
 186                 somethingElse = True;
 187                 done = True;
 188             }
 189             break;
 190         case KeyRelease:
 191 #ifdef DEBUG
 192             printf("Got key release\n");
 193 #endif
 194             for (i = 0; i < 8 * keymap->max_keypermod; i++) {
 195                 if (keymap->modifiermap[i] == ev.xkey.keycode &&
 196                     wKeyBindings[WKBD_FOCUSNEXT].modifier
 197                     & 1<<(i/keymap->max_keypermod)) {
 198                     done = True;
 199                     break;
 200                 }
 201             }
 202             break;
 203
 204         case MotionNotify:
 205         case ButtonRelease:
 206             {
 207                 WWindow *tmp;
 208                 if (swpanel) {
 209                     tmp = wSwitchPanelHandleEvent(swpanel, &ev);
 210                     if (tmp && tmp != newFocused) {
 211                         newFocused = tmp;
 212                         wWindowFocus(newFocused, oldFocused);
 213                         oldFocused = newFocused;
 214
 215                         if (wPreferences.circ_raise) {
 216                             CommitStacking(scr);
 217                             raiseWindow(swpanel, newFocused);
 218                         }
 219
 220                         if (ev.type == ButtonRelease)
 221                           done= True;
 222                     }
 223                 }
 224             }
 225             break;
 226
 227         default:
 228             WMHandleEvent(&ev);
 229             break;
 230         }
 231     }
 232     if (keymap)
 233         XFreeModifiermap(keymap);
 234
 235     if (hasModifier) {
 236 #ifdef DEBUG
 237         printf("Ungrabbing keyboard\n");
 238 #endif
 239         XUngrabKeyboard(dpy, CurrentTime);
 240     }
 241
 242     if (newFocused) {
 243         wRaiseFrame(newFocused->frame->core);
 244         CommitStacking(scr);
 245         if (!newFocused->flags.mapped)
 246             wMakeWindowVisible(newFocused);
 247         wSetFocusTo(scr, newFocused);
 248     }
 249
 250     if (swpanel)
 251         wSwitchPanelDestroy(swpanel);
 252
 253     scr->flags.doing_alt_tab = 0;
 254
 255     if (somethingElse)
 256         WMHandleEvent(&ev);
 257 }
 258
 259