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