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