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 #include "help_mp.h"
  32
  33 #include "m_struct.h"
  34 #include "m_option.h"
  35 #include "m_property.h"
  36 #include "asxparser.h"
  37
  38 #include "libmpcodecs/mp_image.h"
  39
  40 #include "menu.h"
  41 #include "menu_list.h"
  42 #include "input/input.h"
  43 #include "command.h"
  44
  45 struct list_entry_s {
  46   struct list_entry p;
  47   char* name;
  48   char* txt;
  49   char* prop;
  50   m_option_t* opt;
  51   char* menu;
  52   int auto_update;
  53 };
  54
  55 struct menu_priv_s {
  56   menu_list_priv_t p;
  57   char* ptr;
  58   int edit;
  59   /// Cfg fields
  60   char* na;
  61   int hide_na;
  62 };
  63
  64 static struct menu_priv_s cfg_dflt = {
  65   MENU_LIST_PRIV_DFLT,
  66   NULL,
  67   0,
  68   "N/A",
  69   1
  70 };
  71
  72 static const m_option_t cfg_fields[] = {
  73   MENU_LIST_PRIV_FIELDS,
  74   { "title", M_ST_OFF(menu_list_priv_t,title),  CONF_TYPE_STRING, 0, 0, 0, NULL },
  75   { "na", M_ST_OFF(struct menu_priv_s,na), CONF_TYPE_STRING, 0, 0, 0, NULL },
  76   { "hide-na", M_ST_OFF(struct menu_priv_s,hide_na), CONF_TYPE_FLAG, CONF_RANGE, 0, 1, NULL },
  77   { NULL, NULL, NULL, 0,0,0,NULL }
  78 };
  79
  80 #define mpriv (menu->priv)
  81
  82 static void entry_set_text(menu_t* menu, list_entry_t* e) {
  83   char* val = e->txt ? property_expand_string(menu->ctx, e->txt) :
  84     mp_property_print(e->prop, menu->ctx);
  85   int l,edit = (mpriv->edit && e == mpriv->p.current);
  86   if(!val || !val[0]) {
  87     if(val) free(val);
  88     if(mpriv->hide_na) {
  89       e->p.hide = 1;
  90       return;
  91     }
  92     val = strdup(mpriv->na);
  93   } else if(mpriv->hide_na)
  94       e->p.hide = 0;
  95   l = strlen(e->name) + 2 + strlen(val) + (edit ? 4 : 0) + 1;
  96   if(e->p.txt) free(e->p.txt);
  97   e->p.txt = malloc(l);
  98   sprintf(e->p.txt,"%s: %s%s%s",e->name,edit ? "> " : "",val,edit ? " <" : "");
  99   free(val);
 100 }
 101
 102 static void update_entries(menu_t* menu, int auto_update) {
 103   list_entry_t* e;
 104   for(e = mpriv->p.menu ; e ; e = e->p.next)
 105     if ((e->txt || e->prop) && (!auto_update || e->auto_update))
 106       entry_set_text(menu, e);
 107 }
 108
 109 static int parse_args(menu_t* menu,char* args) {
 110   char *element,*body, **attribs, *name, *txt, *auto_update;
 111   list_entry_t* m = NULL;
 112   int r;
 113   m_option_t* opt;
 114   ASX_Parser_t* parser = asx_parser_new();
 115
 116
 117   while(1) {
 118     r = asx_get_element(parser,&args,&element,&body,&attribs);
 119     if(r < 0) {
 120       mp_msg(MSGT_OSD_MENU,MSGL_ERR,MSGTR_LIBMENU_SyntaxErrorAtLine,parser->line);
 121       asx_parser_free(parser);
 122       return -1;
 123     } else if(r == 0) {
 124       asx_parser_free(parser);
 125       if(!m)
 126         mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_NoEntryFoundInTheMenuDefinition);
 127       m = calloc(1,sizeof(struct list_entry_s));
 128       m->p.txt = strdup("Back");
 129       menu_list_add_entry(menu,m);
 130       return 1;
 131     }
 132     if(!strcmp(element,"menu")) {
 133       name = asx_get_attrib("menu",attribs);
 134       if(!name) {
 135         mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_SubmenuDefinitionNeedAMenuAttribut);
 136         goto next_element;
 137       }
 138       m = calloc(1,sizeof(struct list_entry_s));
 139       m->menu = name;
 140       name = NULL; // we want to keep it
 141       m->p.txt = asx_get_attrib("name",attribs);
 142       if(!m->p.txt) m->p.txt = strdup(m->menu);
 143       menu_list_add_entry(menu,m);
 144       goto next_element;
 145     }
 146
 147     name = asx_get_attrib("property",attribs);
 148     opt = NULL;
 149     if(name && mp_property_do(name,M_PROPERTY_GET_TYPE,&opt,menu->ctx) <= 0) {
 150       mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_InvalidProperty,
 151              name,parser->line);
 152       goto next_element;
 153     }
 154     txt = asx_get_attrib("txt",attribs);
 155     if(!(name || txt)) {
 156       mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_PrefMenuEntryDefinitionsNeed,parser->line);
 157       if(txt) free(txt), txt = NULL;
 158       goto next_element;
 159     }
 160     m = calloc(1,sizeof(struct list_entry_s));
 161     m->opt = opt;
 162     m->txt = txt; txt = NULL;
 163     m->prop = name; name = NULL;
 164     m->name = asx_get_attrib("name",attribs);
 165     if(!m->name) m->name = strdup(opt ? opt->name : "-");
 166     auto_update = asx_get_attrib("auto-update", attribs);
 167     if (auto_update) {
 168       if (!strcmp(auto_update, "1") ||
 169           !strcasecmp(auto_update, "on") ||
 170           !strcasecmp(auto_update, "yes") ||
 171           !strcasecmp(auto_update, "true"))
 172         m->auto_update = 1;
 173       free(auto_update);
 174     }
 175     entry_set_text(menu,m);
 176     menu_list_add_entry(menu,m);
 177
 178   next_element:
 179     free(element);
 180     if(body) free(body);
 181     if(name) free(name);
 182     asx_free_attribs(attribs);
 183   }
 184 }
 185
 186 static void read_cmd(menu_t* menu,int cmd) {
 187   list_entry_t* e = mpriv->p.current;
 188
 189   if(e->opt) {
 190     switch(cmd) {
 191     case MENU_CMD_UP:
 192       if(!mpriv->edit) break;
 193     case MENU_CMD_RIGHT:
 194       if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 195         update_entries(menu, 0);
 196       return;
 197     case MENU_CMD_DOWN:
 198       if(!mpriv->edit) break;
 199     case MENU_CMD_LEFT:
 200       if(mp_property_do(e->prop,M_PROPERTY_STEP_DOWN,NULL,menu->ctx) > 0)
 201         update_entries(menu, 0);
 202       return;
 203
 204     case MENU_CMD_OK:
 205       // check that the property is writable
 206       if(mp_property_do(e->prop,M_PROPERTY_SET,NULL,menu->ctx) < 0) return;
 207       // shortcut for flags
 208       if(e->opt->type == CONF_TYPE_FLAG) {
 209         if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 210           update_entries(menu, 0);
 211         return;
 212       }
 213       // switch
 214       mpriv->edit = !mpriv->edit;
 215       // update the menu
 216       update_entries(menu, 0);
 217       // switch the pointer
 218       if(mpriv->edit) {
 219         mpriv->ptr = mpriv->p.ptr;
 220         mpriv->p.ptr = NULL;
 221       } else
 222         mpriv->p.ptr = mpriv->ptr;
 223       return;
 224     case MENU_CMD_CANCEL:
 225       if(!mpriv->edit) break;
 226       mpriv->edit = 0;
 227       update_entries(menu, 0);
 228       mpriv->p.ptr = mpriv->ptr;
 229       return;
 230     }
 231   } else if(e->menu) {
 232     switch(cmd) {
 233     case MENU_CMD_RIGHT:
 234     case MENU_CMD_OK: {
 235       mp_cmd_t* c;
 236       char* txt = malloc(10 + strlen(e->menu) + 1);
 237       sprintf(txt,"set_menu %s",e->menu);
 238       c = mp_input_parse_cmd(txt);
 239       if(c) mp_input_queue_cmd(c);
 240       return;
 241     }
 242     }
 243   } else {
 244     switch(cmd) {
 245     case MENU_CMD_RIGHT:
 246     case MENU_CMD_OK:
 247       menu->show = 0;
 248       menu->cl = 1;
 249       return;
 250     }
 251   }
 252   menu_list_read_cmd(menu,cmd);
 253 }
 254
 255 static void free_entry(list_entry_t* entry) {
 256   free(entry->p.txt);
 257   if(entry->name) free(entry->name);
 258   if(entry->txt)  free(entry->txt);
 259   if(entry->prop) free(entry->prop);
 260   if(entry->menu) free(entry->menu);
 261   free(entry);
 262 }
 263
 264 static void closeMenu(menu_t* menu) {
 265   menu_list_uninit(menu,free_entry);
 266 }
 267
 268 static void menu_pref_draw(menu_t* menu, mp_image_t* mpi) {
 269   update_entries(menu, 1);
 270   menu_list_draw(menu, mpi);
 271 }
 272
 273 static int openMenu(menu_t* menu, char* args) {
 274
 275   menu->draw = menu_pref_draw;
 276   menu->read_cmd = read_cmd;
 277   menu->close = closeMenu;
 278
 279
 280   if(!args) {
 281     mp_msg(MSGT_OSD_MENU,MSGL_ERR,MSGTR_LIBMENU_PrefMenuNeedsAnArgument);
 282     return 0;
 283   }
 284
 285   menu_list_init(menu);
 286   return parse_args(menu,args);
 287 }
 288
 289 const menu_info_t menu_info_pref = {
 290   "Preferences menu",
 291   "pref",
 292   "Albeu",
 293   "",
 294   {
 295     "pref_cfg",
 296     sizeof(struct menu_priv_s),
 297     &cfg_dflt,
 298     cfg_fields
 299   },
 300   openMenu
 301 };