libmenu/menu_param.c

   1
   2 #include "config.h"
   3
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include <dirent.h>
   7 #include <errno.h>
   8 #include <string.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <ctype.h>
  12
  13 #include "mp_msg.h"
  14 #include "help_mp.h"
  15
  16 #include "m_struct.h"
  17 #include "m_option.h"
  18 #include "m_property.h"
  19 #include "asxparser.h"
  20
  21 #include "libmpcodecs/mp_image.h"
  22
  23 #include "menu.h"
  24 #include "menu_list.h"
  25 #include "input/input.h"
  26 #include "command.h"
  27
  28 struct list_entry_s {
  29   struct list_entry p;
  30   char* name;
  31   char* txt;
  32   char* prop;
  33   m_option_t* opt;
  34   char* menu;
  35 };
  36
  37 struct menu_priv_s {
  38   menu_list_priv_t p;
  39   char* ptr;
  40   int edit;
  41   /// Cfg fields
  42   char* na;
  43   int hide_na;
  44 };
  45
  46 static struct menu_priv_s cfg_dflt = {
  47   MENU_LIST_PRIV_DFLT,
  48   NULL,
  49   0,
  50   "N/A",
  51   1
  52 };
  53
  54 static m_option_t cfg_fields[] = {
  55   MENU_LIST_PRIV_FIELDS,
  56   { "title", M_ST_OFF(menu_list_priv_t,title),  CONF_TYPE_STRING, 0, 0, 0, NULL },
  57   { "na", M_ST_OFF(struct menu_priv_s,na), CONF_TYPE_STRING, 0, 0, 0, NULL },
  58   { "hide-na", M_ST_OFF(struct menu_priv_s,hide_na), CONF_TYPE_FLAG, CONF_RANGE, 0, 1, NULL },
  59   { NULL, NULL, NULL, 0,0,0,NULL }
  60 };
  61
  62 #define mpriv (menu->priv)
  63
  64 static void entry_set_text(menu_t* menu, list_entry_t* e) {
  65   char* val = e->txt ? property_expand_string(menu->ctx, e->txt) :
  66     mp_property_print(e->prop, menu->ctx);
  67   int l,edit = (mpriv->edit && e == mpriv->p.current);
  68   if(!val || !val[0]) {
  69     if(val) free(val);
  70     if(mpriv->hide_na) {
  71       e->p.hide = 1;
  72       return;
  73     }
  74     val = strdup(mpriv->na);
  75   } else if(mpriv->hide_na)
  76       e->p.hide = 0;
  77   l = strlen(e->name) + 2 + strlen(val) + (edit ? 4 : 0) + 1;
  78   if(e->p.txt) free(e->p.txt);
  79   e->p.txt = malloc(l);
  80   sprintf(e->p.txt,"%s: %s%s%s",e->name,edit ? "> " : "",val,edit ? " <" : "");
  81   free(val);
  82 }
  83
  84 static void update_entries(menu_t* menu) {
  85   list_entry_t* e;
  86   for(e = mpriv->p.menu ; e ; e = e->p.next)
  87     if(e->txt || e->prop) entry_set_text(menu,e);
  88 }
  89
  90 static int parse_args(menu_t* menu,char* args) {
  91   char *element,*body, **attribs, *name, *txt;
  92   list_entry_t* m = NULL;
  93   int r;
  94   m_option_t* opt;
  95   ASX_Parser_t* parser = asx_parser_new();
  96
  97
  98   while(1) {
  99     r = asx_get_element(parser,&args,&element,&body,&attribs);
 100     if(r < 0) {
 101       mp_msg(MSGT_OSD_MENU,MSGL_ERR,MSGTR_LIBMENU_SyntaxErrorAtLine,parser->line);
 102       asx_parser_free(parser);
 103       return -1;
 104     } else if(r == 0) {
 105       asx_parser_free(parser);
 106       if(!m)
 107         mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_NoEntryFoundInTheMenuDefinition);
 108       m = calloc(1,sizeof(struct list_entry_s));
 109       m->p.txt = strdup("Back");
 110       menu_list_add_entry(menu,m);
 111       return 1;
 112     }
 113     if(!strcmp(element,"menu")) {
 114       name = asx_get_attrib("menu",attribs);
 115       if(!name) {
 116         mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_SubmenuDefinitionNeedAMenuAttribut);
 117         goto next_element;
 118       }
 119       m = calloc(1,sizeof(struct list_entry_s));
 120       m->menu = name;
 121       name = NULL; // we want to keep it
 122       m->p.txt = asx_get_attrib("name",attribs);
 123       if(!m->p.txt) m->p.txt = strdup(m->menu);
 124       menu_list_add_entry(menu,m);
 125       goto next_element;
 126     }
 127
 128     name = asx_get_attrib("property",attribs);
 129     opt = NULL;
 130     if(name && mp_property_do(name,M_PROPERTY_GET_TYPE,&opt,menu->ctx) <= 0) {
 131       mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_InvalidProperty,
 132              name,parser->line);
 133       goto next_element;
 134     }
 135     txt = asx_get_attrib("txt",attribs);
 136     if(!(name || txt)) {
 137       mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_PrefMenuEntryDefinitionsNeed,parser->line);
 138       if(txt) free(txt), txt = NULL;
 139       goto next_element;
 140     }
 141     m = calloc(1,sizeof(struct list_entry_s));
 142     m->opt = opt;
 143     m->txt = txt; txt = NULL;
 144     m->prop = name; name = NULL;
 145     m->name = asx_get_attrib("name",attribs);
 146     if(!m->name) m->name = strdup(opt ? opt->name : "-");
 147     entry_set_text(menu,m);
 148     menu_list_add_entry(menu,m);
 149
 150   next_element:
 151     free(element);
 152     if(body) free(body);
 153     if(name) free(name);
 154     asx_free_attribs(attribs);
 155   }
 156 }
 157
 158 static void read_cmd(menu_t* menu,int cmd) {
 159   list_entry_t* e = mpriv->p.current;
 160
 161   if(e->opt) {
 162     switch(cmd) {
 163     case MENU_CMD_UP:
 164       if(!mpriv->edit) break;
 165     case MENU_CMD_RIGHT:
 166       if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 167         update_entries(menu);
 168       return;
 169     case MENU_CMD_DOWN:
 170       if(!mpriv->edit) break;
 171     case MENU_CMD_LEFT:
 172       if(mp_property_do(e->prop,M_PROPERTY_STEP_DOWN,NULL,menu->ctx) > 0)
 173         update_entries(menu);
 174       return;
 175
 176     case MENU_CMD_OK:
 177       // check that the property is writable
 178       if(mp_property_do(e->prop,M_PROPERTY_SET,NULL,menu->ctx) < 0) return;
 179       // shortcut for flags
 180       if(e->opt->type == CONF_TYPE_FLAG) {
 181         if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 182           update_entries(menu);
 183         return;
 184       }
 185       // switch
 186       mpriv->edit = !mpriv->edit;
 187       // update the menu
 188       update_entries(menu);
 189       // switch the pointer
 190       if(mpriv->edit) {
 191         mpriv->ptr = mpriv->p.ptr;
 192         mpriv->p.ptr = NULL;
 193       } else
 194         mpriv->p.ptr = mpriv->ptr;
 195       return;
 196     case MENU_CMD_CANCEL:
 197       if(!mpriv->edit) break;
 198       mpriv->edit = 0;
 199       update_entries(menu);
 200       mpriv->p.ptr = mpriv->ptr;
 201       return;
 202     }
 203   } else if(e->menu) {
 204     switch(cmd) {
 205     case MENU_CMD_RIGHT:
 206     case MENU_CMD_OK: {
 207       mp_cmd_t* c;
 208       char* txt = malloc(10 + strlen(e->menu) + 1);
 209       sprintf(txt,"set_menu %s",e->menu);
 210       c = mp_input_parse_cmd(txt);
 211       if(c) mp_input_queue_cmd(c);
 212       return;
 213     }
 214     }
 215   } else {
 216     switch(cmd) {
 217     case MENU_CMD_RIGHT:
 218     case MENU_CMD_OK:
 219       menu->show = 0;
 220       menu->cl = 1;
 221       return;
 222     }
 223   }
 224   menu_list_read_cmd(menu,cmd);
 225 }
 226
 227 static void free_entry(list_entry_t* entry) {
 228   free(entry->p.txt);
 229   if(entry->name) free(entry->name);
 230   if(entry->txt)  free(entry->txt);
 231   if(entry->prop) free(entry->prop);
 232   if(entry->menu) free(entry->menu);
 233   free(entry);
 234 }
 235
 236 static void closeMenu(menu_t* menu) {
 237   menu_list_uninit(menu,free_entry);
 238 }
 239
 240 static int openMenu(menu_t* menu, char* args) {
 241
 242   menu->draw = menu_list_draw;
 243   menu->read_cmd = read_cmd;
 244   menu->close = closeMenu;
 245
 246
 247   if(!args) {
 248     mp_msg(MSGT_OSD_MENU,MSGL_ERR,MSGTR_LIBMENU_PrefMenuNeedsAnArgument);
 249     return 0;
 250   }
 251
 252   menu_list_init(menu);
 253   return parse_args(menu,args);
 254 }
 255
 256 const menu_info_t menu_info_pref = {
 257   "Preferences menu",
 258   "pref",
 259   "Albeu",
 260   "",
 261   {
 262     "pref_cfg",
 263     sizeof(struct menu_priv_s),
 264     &cfg_dflt,
 265     cfg_fields
 266   },
 267   openMenu
 268 };