src/appmenu.c

   1 /* appmenu.c- application defined menu
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1997-2003 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/Xproto.h>
  28 #include <X11/Xatom.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <stdio.h>
  32 #include <unistd.h>
  33
  34 #include "WindowMaker.h"
  35 #include "wcore.h"
  36 #include "menu.h"
  37 #include "actions.h"
  38 #include "funcs.h"
  39
  40 #include "framewin.h"
  41
  42
  43 /******** Global Variables **********/
  44 extern Atom _XA_WINDOWMAKER_MENU;
  45 extern Atom _XA_WINDOWMAKER_WM_PROTOCOLS;
  46 extern Time LastTimestamp;
  47
  48 extern WPreferences wPreferences;
  49
  50 typedef struct {
  51     short code;
  52     short tag;
  53     Window window;
  54 } WAppMenuData;
  55
  56
  57
  58 enum {
  59     wmBeginMenu = 1,
  60     wmEndMenu = 2,
  61     wmNormalItem = 10,
  62     wmDoubleItem = 11,
  63     wmSubmenuItem = 12
  64 };
  65
  66 enum {
  67     wmSelectItem = 1
  68 };
  69
  70
  71 static void
  72 sendMessage(Window window, int what, int tag)
  73 {
  74     XEvent event;
  75
  76     event.xclient.type = ClientMessage;
  77     event.xclient.message_type = _XA_WINDOWMAKER_MENU;
  78     event.xclient.format = 32;
  79     event.xclient.display = dpy;
  80     event.xclient.window = window;
  81     event.xclient.data.l[0] = LastTimestamp;
  82     event.xclient.data.l[1] = what;
  83     event.xclient.data.l[2] = tag;
  84     event.xclient.data.l[3] = 0;
  85     XSendEvent(dpy, window, False, NoEventMask, &event);
  86     XFlush(dpy);
  87 }
  88
  89
  90 static void
  91 notifyClient(WMenu *menu, WMenuEntry *entry)
  92 {
  93     WAppMenuData *data = entry->clientdata;
  94
  95     sendMessage(data->window, wmSelectItem, data->tag);
  96 }
  97
  98
  99
 100 static WMenu*
 101 parseMenuCommand(WScreen *scr, Window win, char **slist, int count, int *index)
 102 {
 103     WMenu *menu;
 104     int command;
 105     int code, pos;
 106     char title[300];
 107     char rtext[300];
 108
 109     if (strlen(slist[*index])>300) {
 110         wwarning("appmenu: menu command size exceeded in window %x", win);
 111         return NULL;
 112     }
 113     if (sscanf(slist[*index], "%i %i %n", &command, &code, &pos)<2
 114         || command!=wmBeginMenu) {
 115         wwarning("appmenu: bad menu entry \"%s\" in window %x",
 116                  slist[*index], win);
 117         return NULL;
 118     }
 119     strcpy(title, &slist[*index][pos]);
 120     menu = wMenuCreateForApp(scr, title, *index==1);
 121     if (!menu)
 122         return NULL;
 123     *index += 1;
 124     while (*index<count) {
 125         int ecode, etag, enab;
 126
 127         if (sscanf(slist[*index], "%i", &command)!=1) {
 128             wMenuDestroy(menu, True);
 129             wwarning("appmenu: bad menu entry \"%s\" in window %x",
 130                      slist[*index], win);
 131             return NULL;
 132         }
 133
 134         if (command==wmEndMenu) {
 135             *index += 1;
 136             break;
 137
 138         } else if (command==wmNormalItem
 139                    || command==wmDoubleItem) {
 140             WAppMenuData *data;
 141             WMenuEntry *entry;
 142
 143             if (command == wmNormalItem) {
 144                 if (sscanf(slist[*index], "%i %i %i %i %n",
 145                            &command, &ecode, &etag, &enab, &pos)!=4
 146                     || ecode!=code) {
 147                     wMenuDestroy(menu, True);
 148                     wwarning("appmenu: bad menu entry \"%s\" in window %x",
 149                              slist[*index], win);
 150                     return NULL;
 151                 }
 152                 strcpy(title, &slist[*index][pos]);
 153                 rtext[0] = 0;
 154             } else {
 155                 if (sscanf(slist[*index], "%i %i %i %i %s %n",
 156                            &command, &ecode, &etag, &enab, rtext, &pos)!=5
 157                     || ecode!=code) {
 158                     wMenuDestroy(menu, True);
 159                     wwarning("appmenu: bad menu entry \"%s\" in window %x",
 160                              slist[*index], win);
 161                     return NULL;
 162                 }
 163                 strcpy(title, &slist[*index][pos]);
 164             }
 165             if (!(data = malloc(sizeof(WAppMenuData)))) {
 166                 wwarning("appmenu: out of memory making menu for window %x",
 167                          win);
 168                 wMenuDestroy(menu, True);
 169                 return NULL;
 170             }
 171             data->code = code;
 172             data->tag = etag;
 173             data->window = win;
 174             entry = wMenuAddCallback(menu, title, notifyClient, data);
 175             if (!entry) {
 176                 wMenuDestroy(menu, True);
 177                 wwarning("appmenu: out of memory creating menu for window %x",
 178                          slist[*index], win);
 179                 wfree(data);
 180                 return NULL;
 181             }
 182             if (rtext[0]!=0)
 183                 entry->rtext = wstrdup(rtext);
 184             else
 185                 entry->rtext = NULL;
 186             entry->free_cdata = free;
 187             *index += 1;
 188
 189         } else if (command==wmSubmenuItem) {
 190             int ncode;
 191             WMenuEntry *entry;
 192             WMenu *submenu;
 193
 194             if (sscanf(slist[*index], "%i %i %i %i %i %n",
 195                        &command, &ecode, &etag, &enab, &ncode, &pos)!=5
 196                 || ecode!=code) {
 197                 wMenuDestroy(menu, True);
 198                 wwarning("appmenu: bad menu entry \"%s\" in window %x",
 199                          slist[*index], win);
 200
 201                 return NULL;
 202             }
 203             strcpy(title, &slist[*index][pos]);
 204             *index += 1;
 205
 206             submenu = parseMenuCommand(scr, win, slist, count, index);
 207
 208             entry = wMenuAddCallback(menu, title, NULL, NULL);
 209
 210             if (!entry) {
 211                 wMenuDestroy(menu, True);
 212                 wMenuDestroy(submenu, True);
 213                 wwarning("appmenu: out of memory creating menu for window %x",
 214                          slist[*index], win);
 215                 return NULL;
 216             }
 217
 218             wMenuEntrySetCascade(menu, entry, submenu);
 219
 220         } else {
 221             wMenuDestroy(menu, True);
 222             wwarning("appmenu: bad menu entry \"%s\" in window %x",
 223                      slist[*index], win);
 224             return NULL;
 225         }
 226     }
 227
 228     return menu;
 229 }
 230
 231
 232 WMenu*
 233 wAppMenuGet(WScreen *scr, Window window)
 234 {
 235     XTextProperty text_prop;
 236     int count, i;
 237     char **slist;
 238     WMenu *menu;
 239
 240     if (!XGetTextProperty(dpy, window, &text_prop, _XA_WINDOWMAKER_MENU)) {
 241         return NULL;
 242     }
 243     if (!XTextPropertyToStringList(&text_prop, &slist, &count) || count<1) {
 244         XFree(text_prop.value);
 245         return NULL;
 246     }
 247     XFree(text_prop.value);
 248     if (strcmp(slist[0], "WMMenu 0")!=0) {
 249         wwarning("appmenu: unknown version of WMMenu in window %x: %s",
 250                  window,  slist[0]);
 251         XFreeStringList(slist);
 252         return NULL;
 253     }
 254
 255     i = 1;
 256     menu = parseMenuCommand(scr, window, slist, count, &i);
 257     if (menu)
 258         menu->parent = NULL;
 259
 260     XFreeStringList(slist);
 261
 262     return menu;
 263 }
 264
 265 void
 266 wAppMenuDestroy(WMenu *menu)
 267 {
 268     if (menu)
 269         wMenuDestroy(menu, True);
 270 }
 271
 272
 273 static void
 274 mapmenus(WMenu *menu)
 275 {
 276     int i;
 277
 278     if (menu->flags.mapped)
 279         XMapWindow(dpy, menu->frame->core->window);
 280     if (menu->brother->flags.mapped)
 281         XMapWindow(dpy, menu->brother->frame->core->window);
 282     for (i=0; i<menu->cascade_no; i++) {
 283         if (menu->cascades[i])
 284             mapmenus(menu->cascades[i]);
 285     }
 286 }
 287
 288
 289 void
 290 wAppMenuMap(WMenu *menu, WWindow *wwin)
 291 {
 292
 293     if (!menu)
 294         return;
 295
 296     if (!menu->flags.mapped) {
 297         wMenuMap(menu);
 298     }
 299     if(wwin && (wPreferences.focus_mode!=WKF_CLICK)) {
 300         int x, min;
 301
 302         min = 20; /* Keep at least 20 pixels visible */
 303         if (wwin->frame_x > min) {
 304             x = wwin->frame_x - menu->frame->core->width;
 305         }
 306         else {
 307             x = min - menu->frame->core->width;
 308         }
 309         wMenuMove(menu, x, wwin->frame_y, True);
 310     }
 311     mapmenus(menu);
 312
 313 }
 314
 315
 316 static void
 317 unmapmenus(WMenu *menu)
 318 {
 319     int i;
 320
 321     if (menu->flags.mapped)
 322         XUnmapWindow(dpy, menu->frame->core->window);
 323     if (menu->brother->flags.mapped)
 324         XUnmapWindow(dpy, menu->brother->frame->core->window);
 325     for (i=0; i<menu->cascade_no; i++) {
 326         if (menu->cascades[i])
 327             unmapmenus(menu->cascades[i]);
 328     }
 329 }
 330
 331 void
 332 wAppMenuUnmap(WMenu *menu)
 333 {
 334     if (menu)
 335         unmapmenus(menu);
 336 }
 337