src/motif.c

   1 /* motif.c-- stuff for support for mwm hints
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1998-2003 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 along
  18  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <X11/Xlib.h>
  25 #include <X11/Xutil.h>
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 #include "WindowMaker.h"
  31 #include "framewin.h"
  32 #include "window.h"
  33 #include "properties.h"
  34 #include "icon.h"
  35 #include "client.h"
  36 #include "motif.h"
  37
  38 /* Motif window hints */
  39 #define MWM_HINTS_FUNCTIONS           (1L << 0)
  40 #define MWM_HINTS_DECORATIONS         (1L << 1)
  41
  42 /* bit definitions for MwmHints.functions */
  43 #define MWM_FUNC_ALL                  (1L << 0)
  44 #define MWM_FUNC_RESIZE               (1L << 1)
  45 #define MWM_FUNC_MOVE                 (1L << 2)
  46 #define MWM_FUNC_MINIMIZE             (1L << 3)
  47 #define MWM_FUNC_MAXIMIZE             (1L << 4)
  48 #define MWM_FUNC_CLOSE                (1L << 5)
  49
  50 /* bit definitions for MwmHints.decorations */
  51 #define MWM_DECOR_ALL                 (1L << 0)
  52 #define MWM_DECOR_BORDER              (1L << 1)
  53 #define MWM_DECOR_RESIZEH             (1L << 2)
  54 #define MWM_DECOR_TITLE               (1L << 3)
  55 #define MWM_DECOR_MENU                (1L << 4)
  56 #define MWM_DECOR_MINIMIZE            (1L << 5)
  57 #define MWM_DECOR_MAXIMIZE            (1L << 6)
  58
  59 /* Motif  window hints */
  60 typedef struct {
  61         long flags;
  62         long functions;
  63         long decorations;
  64         long inputMode;
  65         long unknown;
  66 } MWMHints;
  67
  68 static Atom _XA_MOTIF_WM_HINTS;
  69
  70 static void setupMWMHints(WWindow *wwin, MWMHints *mwm_hints)
  71 {
  72         /*
  73          * We will ignore all decoration hints that have an equivalent as
  74          * functions, because wmaker does not distinguish decoration hints
  75          */
  76
  77         if (mwm_hints->flags & MWM_HINTS_DECORATIONS) {
  78                 WSETUFLAG(wwin, no_titlebar, 1);
  79                 WSETUFLAG(wwin, no_close_button, 1);
  80                 WSETUFLAG(wwin, no_miniaturize_button, 1);
  81                 WSETUFLAG(wwin, no_resizebar, 1);
  82
  83                 if (mwm_hints->decorations & MWM_DECOR_ALL) {
  84                         WSETUFLAG(wwin, no_titlebar, 0);
  85                         WSETUFLAG(wwin, no_close_button, 0);
  86                         WSETUFLAG(wwin, no_closable, 0);
  87                         WSETUFLAG(wwin, no_miniaturize_button, 0);
  88                         WSETUFLAG(wwin, no_miniaturizable, 0);
  89                         WSETUFLAG(wwin, no_resizebar, 0);
  90                         WSETUFLAG(wwin, no_resizable, 0);
  91                 }
  92
  93                 if (mwm_hints->decorations & MWM_DECOR_BORDER) {
  94                         /*
  95                          * WindowMaker is drawing only a discreet 1 pixel border without
  96                          * any decoration like a few other X window managers used to do, so
  97                          * we assume it is not worth spending the time to add extra
  98                          * complexity to handle this special request, considering also that
  99                          * the Motif toolkit is not used anymore nowadays.
 100                          */
 101                 }
 102
 103                 if (mwm_hints->decorations & MWM_DECOR_RESIZEH)
 104                         WSETUFLAG(wwin, no_resizebar, 0);
 105
 106                 if (mwm_hints->decorations & MWM_DECOR_TITLE) {
 107                         WSETUFLAG(wwin, no_titlebar, 0);
 108                         WSETUFLAG(wwin, no_close_button, 0);
 109                         WSETUFLAG(wwin, no_closable, 0);
 110                 }
 111
 112                 if (mwm_hints->decorations * MWM_DECOR_MENU) {
 113                         /*
 114                          * WindowMaker does not include a button to display the menu
 115                          * for windows, this is done using right mouse button on the
 116                          * title bar. As a consequence, we ignore this flag because we
 117                          * have nothing to hide.
 118                          */
 119                 }
 120
 121                 if (mwm_hints->decorations & MWM_DECOR_MINIMIZE) {
 122                         WSETUFLAG(wwin, no_miniaturize_button, 0);
 123                         WSETUFLAG(wwin, no_miniaturizable, 0);
 124                 }
 125
 126                 if (mwm_hints->decorations & MWM_DECOR_MAXIMIZE) {
 127                         /*
 128                          * WindowMaker does not display a button to maximize windows,
 129                          * so we don't need to hide anything more for that flag
 130                          */
 131                 }
 132         }
 133
 134         if (mwm_hints->flags & MWM_HINTS_FUNCTIONS) {
 135                 WSETUFLAG(wwin, no_closable, 1);
 136                 WSETUFLAG(wwin, no_miniaturizable, 1);
 137                 WSETUFLAG(wwin, no_resizable, 1);
 138
 139                 if (mwm_hints->functions & MWM_FUNC_ALL) {
 140                         WSETUFLAG(wwin, no_closable, 0);
 141                         WSETUFLAG(wwin, no_miniaturizable, 0);
 142                         WSETUFLAG(wwin, no_resizable, 0);
 143                 }
 144                 if (mwm_hints->functions & MWM_FUNC_RESIZE)
 145                         WSETUFLAG(wwin, no_resizable, 0);
 146
 147                 if (mwm_hints->functions & MWM_FUNC_MOVE) {
 148                         /*
 149                          * WindowMaker does not allow a window to not be moved, and this
 150                          * is a good thing, so we explicitly ignore this flag.
 151                          */
 152                 }
 153
 154                 if (mwm_hints->functions & MWM_FUNC_MINIMIZE)
 155                         WSETUFLAG(wwin, no_miniaturizable, 0);
 156
 157                 if (mwm_hints->functions & MWM_FUNC_MAXIMIZE) {
 158                         /* a window must be resizable to be maximizable */
 159                         WSETUFLAG(wwin, no_resizable, 0);
 160                 }
 161                 if (mwm_hints->functions & MWM_FUNC_CLOSE)
 162                         WSETUFLAG(wwin, no_closable, 0);
 163         }
 164 }
 165
 166 static int getMWMHints(Window window, MWMHints *mwmhints)
 167 {
 168         unsigned long *data;
 169         int count;
 170
 171         if (!_XA_MOTIF_WM_HINTS)
 172                 _XA_MOTIF_WM_HINTS = XInternAtom(dpy, "_MOTIF_WM_HINTS", False);
 173
 174         data = (unsigned long *)PropGetCheckProperty(window, _XA_MOTIF_WM_HINTS,
 175                                                      _XA_MOTIF_WM_HINTS, 32, 0, &count);
 176
 177         if (!data)
 178                 return 0;
 179
 180         mwmhints->flags = 0;
 181         if (count >= 4) {
 182                 mwmhints->flags = data[0];
 183                 mwmhints->functions = data[1];
 184                 mwmhints->decorations = data[2];
 185                 mwmhints->inputMode = data[3];
 186                 if (count > 5)
 187                         mwmhints->unknown = data[4];
 188         }
 189         XFree(data);
 190
 191         return 1;
 192 }
 193
 194 void wMWMCheckClientHints(WWindow *wwin)
 195 {
 196         MWMHints hints;
 197
 198         if (getMWMHints(wwin->client_win, &hints))
 199                 setupMWMHints(wwin, &hints);
 200 }