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 static WWindow *change_focus_and_raise(WWindow *newFocused, WWindow *oldFocused,
  65                                        WSwitchPanel *swpanel, WScreen *scr)
  66 {
  67         wWindowFocus(newFocused, oldFocused);
  68         oldFocused = newFocused;
  69
  70         if (wPreferences.circ_raise) {
  71                 CommitStacking(scr);
  72                 raiseWindow(swpanel, newFocused);
  73         }
  74         return oldFocused;
  75 }
  76
  77 void StartWindozeCycle(WWindow * wwin, XEvent * event, Bool next)
  78 {
  79
  80         XModifierKeymap *keymap        = NULL;
  81         WSwitchPanel    *swpanel       = NULL;
  82         WScreen         *scr           = wScreenForRootWindow(event->xkey.root);
  83         KeyCode         leftKey        = XKeysymToKeycode(dpy, XK_Left);
  84         KeyCode         rightKey       = XKeysymToKeycode(dpy, XK_Right);
  85         KeyCode         homeKey        = XKeysymToKeycode(dpy, XK_Home);
  86         KeyCode         endKey         = XKeysymToKeycode(dpy, XK_End);
  87         KeyCode         shiftLKey      = XKeysymToKeycode(dpy, XK_Shift_L);
  88         KeyCode         shiftRKey      = XKeysymToKeycode(dpy, XK_Shift_R);
  89         Bool            somethingElse  = False;
  90         Bool            done           = False;
  91         Bool            hasModifier;
  92         int             modifiers;
  93         WWindow         *newFocused;
  94         WWindow         *oldFocused;
  95         XEvent          ev;
  96
  97
  98         if (!wwin)
  99                 return;
 100
 101         if (next)
 102                 hasModifier = (wKeyBindings[WKBD_FOCUSNEXT].modifier != 0);
 103         else
 104                 hasModifier = (wKeyBindings[WKBD_FOCUSPREV].modifier != 0);
 105
 106         if (hasModifier) {
 107                 keymap = XGetModifierMapping(dpy);
 108
 109 #ifdef DEBUG
 110                 printf("Grabbing keyboard\n");
 111 #endif
 112                 XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 113         }
 114
 115         scr->flags.doing_alt_tab = 1;
 116
 117         swpanel = wInitSwitchPanel(scr, wwin, scr->current_workspace);
 118         oldFocused = wwin;
 119
 120         if (swpanel) {
 121                 newFocused = wSwitchPanelSelectNext(swpanel, !next);
 122                 if (newFocused)
 123                         oldFocused = change_focus_and_raise(newFocused, oldFocused, swpanel, scr);
 124         } else {
 125                 if (wwin->frame->workspace == scr->current_workspace)
 126                         newFocused = wwin;
 127                 else
 128                         newFocused = NULL;
 129         }
 130
 131         while (hasModifier && !done) {
 132                 int i;
 133
 134                 WMMaskEvent(dpy, KeyPressMask | KeyReleaseMask | ExposureMask
 135                             | PointerMotionMask | ButtonReleaseMask, &ev);
 136
 137                 /* ignore CapsLock */
 138                 modifiers = ev.xkey.state & ValidModMask;
 139
 140                 switch (ev.type) {
 141                 case KeyPress:
 142
 143                         if (!swpanel) {
 144                                 done = True;
 145                                 break;
 146                         }
 147
 148                         if ((wKeyBindings[WKBD_FOCUSNEXT].keycode == ev.xkey.keycode
 149                              && wKeyBindings[WKBD_FOCUSNEXT].modifier == modifiers)
 150                             || ev.xkey.keycode == rightKey) {
 151
 152                                 newFocused = wSwitchPanelSelectNext(swpanel, False);
 153                                 if (newFocused)
 154                                         oldFocused = change_focus_and_raise(newFocused, oldFocused, swpanel, scr);
 155                         } else if ((wKeyBindings[WKBD_FOCUSPREV].keycode == ev.xkey.keycode
 156                                     && wKeyBindings[WKBD_FOCUSPREV].modifier == modifiers)
 157                                    || ev.xkey.keycode == leftKey) {
 158
 159                                 newFocused = wSwitchPanelSelectNext(swpanel, True);
 160                                 if (newFocused)
 161                                         oldFocused = change_focus_and_raise(newFocused, oldFocused, swpanel, scr);
 162                         } else if (ev.xkey.keycode == homeKey || ev.xkey.keycode == endKey) {
 163
 164                                 newFocused = wSwitchPanelSelectFirst(swpanel, ev.xkey.keycode != homeKey);
 165                                 if (newFocused)
 166                                         oldFocused = change_focus_and_raise(newFocused, oldFocused, swpanel, scr);
 167                         } else if (ev.xkey.keycode != shiftLKey && ev.xkey.keycode != shiftRKey) {
 168
 169                                 somethingElse = True;
 170                                 done = True;
 171                         }
 172                         break;
 173                 case KeyRelease:
 174
 175                         for (i = 0; i < 8 * keymap->max_keypermod; i++) {
 176                                 if (keymap->modifiermap[i] == ev.xkey.keycode &&
 177                                     wKeyBindings[WKBD_FOCUSNEXT].modifier & 1 << (i / keymap->max_keypermod)) {
 178                                         done = True;
 179                                         break;
 180                                 }
 181                         }
 182                         break;
 183
 184                 case LeaveNotify:
 185                 case MotionNotify:
 186                 case ButtonRelease:
 187                         {
 188                                 WWindow *tmp;
 189                                 if (swpanel) {
 190                                         tmp = wSwitchPanelHandleEvent(swpanel, &ev);
 191                                         if (tmp) {
 192                                                 newFocused = tmp;
 193                                                 oldFocused = change_focus_and_raise(newFocused, oldFocused, swpanel, scr);
 194
 195                                                 if (ev.type == ButtonRelease)
 196                                                         done = True;
 197                                         }
 198                                 }
 199                         }
 200                         break;
 201
 202                 default:
 203                         WMHandleEvent(&ev);
 204                         break;
 205                 }
 206         }
 207         if (keymap)
 208                 XFreeModifiermap(keymap);
 209
 210         if (hasModifier) {
 211
 212                 XUngrabKeyboard(dpy, CurrentTime);
 213         }
 214
 215         if (swpanel)
 216                 wSwitchPanelDestroy(swpanel);
 217
 218         if (newFocused) {
 219                 wRaiseFrame(newFocused->frame->core);
 220                 CommitStacking(scr);
 221                 if (!newFocused->flags.mapped)
 222                         wMakeWindowVisible(newFocused);
 223                 wSetFocusTo(scr, newFocused);
 224         }
 225
 226         scr->flags.doing_alt_tab = 0;
 227
 228         if (somethingElse)
 229                 WMHandleEvent(&ev);
 230 }