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/img_format.h"
  22 #include "libmpcodecs/mp_image.h"
  23
  24 #include "menu.h"
  25 #include "menu_list.h"
  26 #include "input/input.h"
  27 #include "osdep/keycodes.h"
  28 #include "command.h"
  29
  30 struct list_entry_s {
  31   struct list_entry p;
  32   char* name;
  33   char* txt;
  34   char* prop;
  35   m_option_t* opt;
  36   char* menu;
  37 };
  38
  39 struct menu_priv_s {
  40   menu_list_priv_t p;
  41   char* ptr;
  42   int edit;
  43   /// Cfg fields
  44   char* na;
  45   int hide_na;
  46 };
  47
  48 static struct menu_priv_s cfg_dflt = {
  49   MENU_LIST_PRIV_DFLT,
  50   NULL,
  51   0,
  52   "N/A",
  53   1
  54 };
  55
  56 static m_option_t cfg_fields[] = {
  57   MENU_LIST_PRIV_FIELDS,
  58   { "title", M_ST_OFF(menu_list_priv_t,title),  CONF_TYPE_STRING, 0, 0, 0, NULL },
  59   { "na", M_ST_OFF(struct menu_priv_s,na), CONF_TYPE_STRING, 0, 0, 0, NULL },
  60   { "hide-na", M_ST_OFF(struct menu_priv_s,hide_na), CONF_TYPE_FLAG, CONF_RANGE, 0, 1, NULL },
  61   { NULL, NULL, NULL, 0,0,0,NULL }
  62 };
  63
  64 #define mpriv (menu->priv)
  65
  66 static void entry_set_text(menu_t* menu, list_entry_t* e) {
  67   char* val = e->txt ? property_expand_string(menu->ctx, e->txt) :
  68     mp_property_print(e->prop, menu->ctx);
  69   int l,edit = (mpriv->edit && e == mpriv->p.current);
  70   if(!val || !val[0]) {
  71     if(val) free(val);
  72     if(mpriv->hide_na) {
  73       e->p.hide = 1;
  74       return;
  75     }
  76     val = strdup(mpriv->na);
  77   } else if(mpriv->hide_na)
  78       e->p.hide = 0;
  79   l = strlen(e->name) + 2 + strlen(val) + (edit ? 4 : 0) + 1;
  80   if(e->p.txt) free(e->p.txt);
  81   e->p.txt = malloc(l);
  82   sprintf(e->p.txt,"%s: %s%s%s",e->name,edit ? "> " : "",val,edit ? " <" : "");
  83   free(val);
  84 }
  85
  86 static void update_entries(menu_t* menu) {
  87   list_entry_t* e;
  88   for(e = mpriv->p.menu ; e ; e = e->p.next)
  89     if(e->txt || e->prop) entry_set_text(menu,e);
  90 }
  91
  92 static int parse_args(menu_t* menu,char* args) {
  93   char *element,*body, **attribs, *name, *txt;
  94   list_entry_t* m = NULL;
  95   int r;
  96   m_option_t* opt;
  97   ASX_Parser_t* parser = asx_parser_new();
  98
  99
 100   while(1) {
 101     r = asx_get_element(parser,&args,&element,&body,&attribs);
 102     if(r < 0) {
 103       mp_msg(MSGT_OSD_MENU,MSGL_ERR,MSGTR_LIBMENU_SyntaxErrorAtLine,parser->line);
 104       asx_parser_free(parser);
 105       return -1;
 106     } else if(r == 0) {
 107       asx_parser_free(parser);
 108       if(!m)
 109         mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_NoEntryFoundInTheMenuDefinition);
 110       m = calloc(1,sizeof(struct list_entry_s));
 111       m->p.txt = strdup("Back");
 112       menu_list_add_entry(menu,m);
 113       return 1;
 114     }
 115     if(!strcmp(element,"menu")) {
 116       name = asx_get_attrib("menu",attribs);
 117       if(!name) {
 118         mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_SubmenuDefinitionNeedAMenuAttribut);
 119         goto next_element;
 120       }
 121       m = calloc(1,sizeof(struct list_entry_s));
 122       m->menu = name;
 123       name = NULL; // we want to keep it
 124       m->p.txt = asx_get_attrib("name",attribs);
 125       if(!m->p.txt) m->p.txt = strdup(m->menu);
 126       menu_list_add_entry(menu,m);
 127       goto next_element;
 128     }
 129
 130     name = asx_get_attrib("property",attribs);
 131     opt = NULL;
 132     if(name && mp_property_do(name,M_PROPERTY_GET_TYPE,&opt,menu->ctx) <= 0) {
 133       mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_InvalidProperty,
 134              name,parser->line);
 135       goto next_element;
 136     }
 137     txt = asx_get_attrib("txt",attribs);
 138     if(!(name || txt)) {
 139       mp_msg(MSGT_OSD_MENU,MSGL_WARN,MSGTR_LIBMENU_PrefMenuEntryDefinitionsNeed,parser->line);
 140       if(txt) free(txt), txt = NULL;
 141       goto next_element;
 142     }
 143     m = calloc(1,sizeof(struct list_entry_s));
 144     m->opt = opt;
 145     m->txt = txt; txt = NULL;
 146     m->prop = name; name = NULL;
 147     m->name = asx_get_attrib("name",attribs);
 148     if(!m->name) m->name = strdup(opt ? opt->name : "-");
 149     entry_set_text(menu,m);
 150     menu_list_add_entry(menu,m);
 151
 152   next_element:
 153     free(element);
 154     if(body) free(body);
 155     if(name) free(name);
 156     asx_free_attribs(attribs);
 157   }
 158 }
 159
 160 static void read_key(menu_t* menu,int c) {
 161   menu_list_read_key(menu,c,0);
 162 }
 163
 164 static void read_cmd(menu_t* menu,int cmd) {
 165   list_entry_t* e = mpriv->p.current;
 166
 167   if(e->opt) {
 168     switch(cmd) {
 169     case MENU_CMD_UP:
 170       if(!mpriv->edit) break;
 171     case MENU_CMD_RIGHT:
 172       if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 173         update_entries(menu);
 174       return;
 175     case MENU_CMD_DOWN:
 176       if(!mpriv->edit) break;
 177     case MENU_CMD_LEFT:
 178       if(mp_property_do(e->prop,M_PROPERTY_STEP_DOWN,NULL,menu->ctx) > 0)
 179         update_entries(menu);
 180       return;
 181
 182     case MENU_CMD_OK:
 183       // check that the property is writable
 184       if(mp_property_do(e->prop,M_PROPERTY_SET,NULL,menu->ctx) < 0) return;
 185       // shortcut for flags
 186       if(e->opt->type == CONF_TYPE_FLAG) {
 187         if(mp_property_do(e->prop,M_PROPERTY_STEP_UP,NULL,menu->ctx) > 0)
 188           update_entries(menu);
 189         return;
 190       }
 191       // switch
 192       mpriv->edit = !mpriv->edit;
 193       // update the menu
 194       update_entries(menu);
 195       // switch the pointer
 196       if(mpriv->edit) {
 197         mpriv->ptr = mpriv->p.ptr;
 198         mpriv->p.ptr = NULL;
 199       } else
 200         mpriv->p.ptr = mpriv->ptr;
 201       return;
 202     case MENU_CMD_CANCEL:
 203       if(!mpriv->edit) break;
 204       mpriv->edit = 0;
 205       update_entries(menu);
 206       mpriv->p.ptr = mpriv->ptr;
 207       return;
 208     }
 209   } else if(e->menu) {
 210     switch(cmd) {
 211     case MENU_CMD_RIGHT:
 212     case MENU_CMD_OK: {
 213       mp_cmd_t* c;
 214       char* txt = malloc(10 + strlen(e->menu) + 1);
 215       sprintf(txt,"set_menu %s",e->menu);
 216       c = mp_input_parse_cmd(txt);
 217       if(c) mp_input_queue_cmd(c);
 218       return;
 219     }
 220     }
 221   } else {
 222     switch(cmd) {
 223     case MENU_CMD_RIGHT:
 224     case MENU_CMD_OK:
 225       menu->show = 0;
 226       menu->cl = 1;
 227       return;
 228     }
 229   }
 230   menu_list_read_cmd(menu,cmd);
 231 }
 232
 233 static void free_entry(list_entry_t* entry) {
 234   free(entry->p.txt);
 235   if(entry->name) free(entry->name);
 236   if(entry->txt)  free(entry->txt);
 237   if(entry->prop) free(entry->prop);
 238   if(entry->menu) free(entry->menu);
 239   free(entry);
 240 }
 241
 242 static void closeMenu(menu_t* menu) {
 243   menu_list_uninit(menu,free_entry);
 244 }
 245
 246 static int openMenu(menu_t* menu, char* args) {
 247
 248   menu->draw = menu_list_draw;
 249   menu->read_cmd = read_cmd;
 250   menu->read_key = read_key;
 251   menu->close = closeMenu;
 252
 253
 254   if(!args) {
 255     mp_msg(MSGT_OSD_MENU,MSGL_ERR,MSGTR_LIBMENU_PrefMenuNeedsAnArgument);
 256     return 0;
 257   }
 258
 259   menu_list_init(menu);
 260   return parse_args(menu,args);
 261 }
 262
 263 const menu_info_t menu_info_pref = {
 264   "Preferences menu",
 265   "pref",
 266   "Albeu",
 267   "",
 268   {
 269     "pref_cfg",
 270     sizeof(struct menu_priv_s),
 271     &cfg_dflt,
 272     cfg_fields
 273   },
 274   openMenu
 275 };