libmenu/menu_param.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <dirent.h>
  24 #include <errno.h>
  25 #include <string.h>
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <ctype.h>
  29
  30 #include "mp_msg.h"
  31
  32 #include "m_struct.h"
  33 #include "m_option.h"
  34 #include "m_property.h"
  35 #include "asxparser.h"
  36
  37 #include "libmpcodecs/mp_image.h"
  38
  39 #include "menu.h"
  40 #include "menu_list.h"
  41 #include "input/input.h"
  42 #include "command.h"
  43
  44 struct list_entry_s {
  45   struct list_entry p;
  46   char* name;
  47   char* txt;
  48   char* prop;
  49   m_option_t* opt;
  50   char* menu;
  51   int auto_update;
  52 };
  53
  54 struct menu_priv_s {
  55   menu_list_priv_t p;
  56   char* ptr;
  57   int edit;
  58   /// Cfg fields
  59   char* na;
  60   int hide_na;
  61 };
  62
  63 static struct menu_priv_s cfg_dflt = {
  64   MENU_LIST_PRIV_DFLT,
  65   NULL,
  66   0,
  67   "N/A",
  68   1
  69 };
  70
  71 static m_option_t cfg_fields[] = {
  72   MENU_LIST_PRIV_FIELDS,
  73   { "title", M_ST_OFF(menu_list_priv_t,title),  CONF_TYPE_STRING, 0, 0, 0, NULL },
  74   { "na", M_ST_OFF(struct menu_priv_s,na), CONF_TYPE_STRING, 0, 0, 0, NULL },
  75   { "hide-na", M_ST_OFF(struct menu_priv_s,hide_na), CONF_TYPE_FLAG, CONF_RANGE, 0, 1, NULL },
  76   { NULL, NULL, NULL, 0,0,0,NULL }
  77 };
  78
  79 #define mpriv (menu->priv)
  80
  81 static void entry_set_text(menu_t* menu, list_entry_t* e) {
  82   char* val = e->txt ? property_expand_string(menu->ctx, e->txt) :
  83     mp_property_print(e->prop, menu->ctx);
  84   int l,edit = (mpriv->edit && e == mpriv->p.current);
  85   if(!val || !val[0]) {
  86     if(val) free(val);
  87     if(mpriv->hide_na) {
  88       e->p.hide = 1;
  89       return;
  90     }
  91     val = strdup(mpriv->na);
  92   } else if(mpriv->hide_na)
  93       e->p.hide = 0;
  94   l = strlen(e->name) + 2 + strlen(val) + (edit ? 4 : 0) + 1;
  95   if(e->p.txt) free(e->p.txt);
  96   e->p.txt = malloc(l);
  97   sprintf(e->p.txt,"%s: %s%s%s",e->name,edit ? "> " : "",val,edit ? " <" : "");
  98   free(val);
  99 }
 100
 101 static void update_entries(menu_t* menu, int auto_update) {
 102   list_entry_t* e;
 103   for(e = mpriv->p.menu ; e ; e = e->p.next)
 104     if ((e->txt || e->prop) && (!auto_update || e->auto_update))
 105       entry_set_text(menu, e);
 106 }
 107
 108 static int parse_args(menu_t* menu,char* args) {
 109   char *element,*body, **attribs, *name, *txt, *auto_update;
 110   list_entry_t* m = NULL;
 111   int r;
 112   m_option_t* opt;
 113   ASX_Parser_t* parser = asx_parser_new(menu->mconfig);
 114
 115
 116   while(1) {
 117     r = asx_get_element(parser,&args,&element,&body,&attribs);
 118     if(r < 0) {
 119       mp_tmsg(MSGT_OSD_MENU,MSGL_ERR,"[MENU] syntax error at line: %d\n",parser->line);
 120       asx_parser_free(parser);
 121       return -1;
 122     } else if(r == 0) {
 123       asx_parser_free(parser);
 124       if(!m)
 125         mp_tmsg(MSGT_OSD_MENU,MSGL_WARN,"[MENU] No entry found in the menu definition.\n");
 126       m = calloc(1,sizeof(struct list_entry_s));
 127       m->p.txt = strdup("Back");
 128       menu_list_add_entry(menu,m);
 129       return 1;
 130     }
 131     if(!strcmp(element,"menu")) {
 132       name = asx_get_attrib("menu",attribs);
 133       if(!name) {
 134         mp_tmsg(MSGT_OSD_MENU,MSGL_WARN,"[MENU] Submenu definition needs a 'menu' attribute.\n");
 135         goto next_element;
 136       }
 137       m = calloc(1,sizeof(struct list_entry_s));
 138       m->menu = name;
 139       name = NULL; // we want to keep it
 140       m->p.txt = asx_get_attrib("name",attribs);
 141       if(!m->p.txt) m->p.txt = strdup(m->menu);
 142       menu_list_add_entry(menu,m);
 143       goto next_element;
 144     }
 145
 146     name = asx_get_attrib("property",attribs);
 147     opt = NULL;
 148     if(name && mp_property_do(name,M_PROPERTY_GET_TYPE,&opt,menu->ctx) <= 0) {
 149       mp_tmsg(MSGT_OSD_MENU,MSGL_WARN,"[MENU] Invalid property '%s' in pref menu entry. (line %d).\n",
 150              name,parser->line);
 151       goto next_element;
 152     }
 153     txt = asx_get_attrib("txt",attribs);
 154     if(!(name || txt)) {
 155       mp_tmsg(MSGT_OSD_MENU,MSGL_WARN,"[MENU] Pref menu entry definitions need a valid 'property' or 'txt' attribute (line %d).\n",parser->line);
 156       if(txt) free(txt), txt = NULL;
 157       goto next_element;
 158     }
 159     m = calloc(1,sizeof(struct list_entry_s));
 160     m->opt = opt;
 161     m->txt = txt; txt = NULL;
 162     m->prop = name; name = NULL;
 163     m->name = asx_get_attrib("name",attribs);
 164     if(!m->name) m->name = strdup(opt ? opt->name : "-");
 165     auto_update = asx_get_attrib("auto-update", attribs);
 166     if (auto_update) {
 167       if (!strcmp(auto_update, "1") ||
 168           !strcasecmp(auto_update, "on") ||
 169           !strcasecmp(auto_update, "yes") ||
 170           !strcasecmp(auto_update, "true"))
 171         m->auto_update = 1;
 172       free(auto_update);
 173     }
 174     entry_set_text(menu,m);
 175     menu_list_add_entry(menu,m);
 176
 177   next_element:
 178     free(element);
 179     if(body) free(body);
 180     if(name) free(name);
 181     asx_free_attribs(attribs);
 182   }
 183 }
 184
 185 static void read_cmd(menu_t* menu,int cmd) {
 186   list_entry_t* e = mpriv->p.current;
 187
 188   if(e->opt) {
 189     switch(cmd) {
 190     case MENU_CMD_UP:
 191       if(!mpriv->edit) break;
 192     case MENU_CMD_RIGHT:
 193       if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 194         update_entries(menu, 0);
 195       return;
 196     case MENU_CMD_DOWN:
 197       if(!mpriv->edit) break;
 198     case MENU_CMD_LEFT:
 199       if(mp_property_do(e->prop,M_PROPERTY_STEP_DOWN,NULL,menu->ctx) > 0)
 200         update_entries(menu, 0);
 201       return;
 202
 203     case MENU_CMD_OK:
 204       // check that the property is writable
 205       if(mp_property_do(e->prop,M_PROPERTY_SET,NULL,menu->ctx) < 0) return;
 206       // shortcut for flags
 207       if(e->opt->type == CONF_TYPE_FLAG) {
 208         if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 209           update_entries(menu, 0);
 210         return;
 211       }
 212       // switch
 213       mpriv->edit = !mpriv->edit;
 214       // update the menu
 215       update_entries(menu, 0);
 216       // switch the pointer
 217       if(mpriv->edit) {
 218         mpriv->ptr = mpriv->p.ptr;
 219         mpriv->p.ptr = NULL;
 220       } else
 221         mpriv->p.ptr = mpriv->ptr;
 222       return;
 223     case MENU_CMD_CANCEL:
 224       if(!mpriv->edit) break;
 225       mpriv->edit = 0;
 226       update_entries(menu, 0);
 227       mpriv->p.ptr = mpriv->ptr;
 228       return;
 229     }
 230   } else if(e->menu) {
 231     switch(cmd) {
 232     case MENU_CMD_RIGHT:
 233     case MENU_CMD_OK: {
 234       mp_cmd_t* c;
 235       char* txt = malloc(10 + strlen(e->menu) + 1);
 236       sprintf(txt,"set_menu %s",e->menu);
 237       c = mp_input_parse_cmd(txt);
 238       if(c) mp_input_queue_cmd(menu->input_ctx, c);
 239       return;
 240     }
 241     }
 242   } else {
 243     switch(cmd) {
 244     case MENU_CMD_RIGHT:
 245     case MENU_CMD_OK:
 246       menu->show = 0;
 247       menu->cl = 1;
 248       return;
 249     }
 250   }
 251   menu_list_read_cmd(menu,cmd);
 252 }
 253
 254 static void free_entry(list_entry_t* entry) {
 255   free(entry->p.txt);
 256   if(entry->name) free(entry->name);
 257   if(entry->txt)  free(entry->txt);
 258   if(entry->prop) free(entry->prop);
 259   if(entry->menu) free(entry->menu);
 260   free(entry);
 261 }
 262
 263 static void closeMenu(menu_t* menu) {
 264   menu_list_uninit(menu,free_entry);
 265 }
 266
 267 static void menu_pref_draw(menu_t* menu, mp_image_t* mpi) {
 268   update_entries(menu, 1);
 269   menu_list_draw(menu, mpi);
 270 }
 271
 272 static int openMenu(menu_t* menu, char* args) {
 273
 274   menu->draw = menu_pref_draw;
 275   menu->read_cmd = read_cmd;
 276   menu->close = closeMenu;
 277
 278
 279   if(!args) {
 280     mp_tmsg(MSGT_OSD_MENU,MSGL_ERR,"[MENU] Pref menu needs an argument.\n");
 281     return 0;
 282   }
 283
 284   menu_list_init(menu);
 285   return parse_args(menu,args);
 286 }
 287
 288 const menu_info_t menu_info_pref = {
 289   "Preferences menu",
 290   "pref",
 291   "Albeu",
 292   "",
 293   {
 294     "pref_cfg",
 295     sizeof(struct menu_priv_s),
 296     &cfg_dflt,
 297     cfg_fields
 298   },
 299   openMenu
 300 };