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 static void raiseWindow(WSwitchPanel * swpanel, WWindow * wwin)
  48 {
  49         Window swwin = wSwitchPanelGetWindow(swpanel);
  50
  51         if (wwin->flags.mapped) {
  52                 if (swwin != None) {
  53                         Window win[2];
  54
  55                         win[0] = swwin;
  56                         win[1] = wwin->frame->core->window;
  57
  58                         XRestackWindows(dpy, win, 2);
  59                 } else
  60                         XRaiseWindow(dpy, wwin->frame->core->window);
  61         }
  62 }
  63
  64 void StartWindozeCycle(WWindow * wwin, XEvent * event, Bool next)
  65 {
  66         WScreen *scr = wScreenForRootWindow(event->xkey.root);
  67         Bool done = False;
  68         WWindow *newFocused;
  69         WWindow *oldFocused;
  70         int modifiers;
  71         XModifierKeymap *keymap = NULL;
  72         Bool hasModifier;
  73         Bool somethingElse = False;
  74         XEvent ev;
  75         WSwitchPanel *swpanel = NULL;
  76         KeyCode leftKey, rightKey, homeKey, endKey, shiftLKey, shiftRKey;
  77
  78         if (!wwin)
  79                 return;
  80
  81         leftKey = XKeysymToKeycode(dpy, XK_Left);
  82         rightKey = XKeysymToKeycode(dpy, XK_Right);
  83         homeKey = XKeysymToKeycode(dpy, XK_Home);
  84         endKey = XKeysymToKeycode(dpy, XK_End);
  85         shiftLKey = XKeysymToKeycode(dpy, XK_Shift_L);
  86         shiftRKey = XKeysymToKeycode(dpy, XK_Shift_R);
  87
  88         if (next)
  89                 hasModifier = (wKeyBindings[WKBD_FOCUSNEXT].modifier != 0);
  90         else
  91                 hasModifier = (wKeyBindings[WKBD_FOCUSPREV].modifier != 0);
  92
  93         if (hasModifier) {
  94                 keymap = XGetModifierMapping(dpy);
  95
  96 #ifdef DEBUG
  97                 printf("Grabbing keyboard\n");
  98 #endif
  99                 XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 100         }
 101
 102         scr->flags.doing_alt_tab = 1;
 103
 104         swpanel = wInitSwitchPanel(scr, wwin, scr->current_workspace);
 105         oldFocused = wwin;
 106
 107         if (swpanel) {
 108                 newFocused = wSwitchPanelSelectNext(swpanel, !next);
 109                 if (newFocused) {
 110                         wWindowFocus(newFocused, oldFocused);
 111                         oldFocused = newFocused;
 112
 113                         if (wPreferences.circ_raise)
 114                                 raiseWindow(swpanel, newFocused);
 115                 }
 116         } else {
 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
 135                         if (!swpanel) {
 136                                 done = True;
 137                                 break;
 138                         }
 139
 140                         if ((wKeyBindings[WKBD_FOCUSNEXT].keycode == ev.xkey.keycode
 141                              && wKeyBindings[WKBD_FOCUSNEXT].modifier == modifiers)
 142                             || ev.xkey.keycode == rightKey) {
 143
 144                                 newFocused = wSwitchPanelSelectNext(swpanel, False);
 145                                 if (newFocused) {
 146                                         wWindowFocus(newFocused, oldFocused);
 147                                         oldFocused = newFocused;
 148
 149                                         if (wPreferences.circ_raise) {
 150                                                 CommitStacking(scr);
 151                                                 raiseWindow(swpanel, newFocused);
 152                                         }
 153                                 }
 154                         } else if ((wKeyBindings[WKBD_FOCUSPREV].keycode == ev.xkey.keycode
 155                                     && wKeyBindings[WKBD_FOCUSPREV].modifier == modifiers)
 156                                    || ev.xkey.keycode == leftKey) {
 157
 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                         } else if (ev.xkey.keycode == homeKey || ev.xkey.keycode == endKey) {
 169
 170                                 newFocused = wSwitchPanelSelectFirst(swpanel, ev.xkey.keycode != homeKey);
 171                                 if (newFocused) {
 172                                         wWindowFocus(newFocused, oldFocused);
 173                                         oldFocused = newFocused;
 174
 175                                         if (wPreferences.circ_raise) {
 176                                                 CommitStacking(scr);
 177                                                 raiseWindow(swpanel, newFocused);
 178                                         }
 179                                 }
 180                         } else if (ev.xkey.keycode != shiftLKey && ev.xkey.keycode != shiftRKey) {
 181
 182                                 somethingElse = True;
 183                                 done = True;
 184                         }
 185                         break;
 186                 case KeyRelease:
 187
 188                         for (i = 0; i < 8 * keymap->max_keypermod; i++) {
 189                                 if (keymap->modifiermap[i] == ev.xkey.keycode &&
 190                                     wKeyBindings[WKBD_FOCUSNEXT].modifier & 1 << (i / keymap->max_keypermod)) {
 191                                         done = True;
 192                                         break;
 193                                 }
 194                         }
 195                         break;
 196
 197                 case LeaveNotify:
 198                 case MotionNotify:
 199                 case ButtonRelease:
 200                         {
 201                                 WWindow *tmp;
 202                                 if (swpanel) {
 203                                         tmp = wSwitchPanelHandleEvent(swpanel, &ev);
 204                                         if (tmp) {
 205                                                 newFocused = tmp;
 206                                                 wWindowFocus(newFocused, oldFocused);
 207                                                 oldFocused = newFocused;
 208
 209                                                 if (wPreferences.circ_raise) {
 210                                                         CommitStacking(scr);
 211                                                         raiseWindow(swpanel, newFocused);
 212                                                 }
 213
 214                                                 if (ev.type == ButtonRelease)
 215                                                         done = True;
 216                                         }
 217                                 }
 218                         }
 219                         break;
 220
 221                 default:
 222                         WMHandleEvent(&ev);
 223                         break;
 224                 }
 225         }
 226         if (keymap)
 227                 XFreeModifiermap(keymap);
 228
 229         if (hasModifier) {
 230
 231                 XUngrabKeyboard(dpy, CurrentTime);
 232         }
 233
 234         if (swpanel)
 235                 wSwitchPanelDestroy(swpanel);
 236
 237         if (newFocused) {
 238                 wRaiseFrame(newFocused->frame->core);
 239                 CommitStacking(scr);
 240                 if (!newFocused->flags.mapped)
 241                         wMakeWindowVisible(newFocused);
 242                 wSetFocusTo(scr, newFocused);
 243         }
 244
 245         scr->flags.doing_alt_tab = 0;
 246
 247         if (somethingElse)
 248                 WMHandleEvent(&ev);
 249 }