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rockbox/apps/tagtree.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Miika Pekkarinen
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/**
* Basic structure on this file was copied from dbtree.c and modified to
* support the tag cache interface.
*/
/*#define LOGF_ENABLE*/
#include <stdio.h>
#include <stdlib.h>
#include "string-extra.h"
#include "config.h"
#include "system.h"
#include "kernel.h"
#include "splash.h"
#include "icons.h"
#include "tree.h"
#include "action.h"
#include "settings.h"
#include "tagcache.h"
#include "tagtree.h"
#include "lang.h"
#include "logf.h"
#include "playlist.h"
#include "keyboard.h"
#include "gui/list.h"
#include "core_alloc.h"
#include "yesno.h"
#include "misc.h"
#include "filetypes.h"
#include "audio.h"
#include "appevents.h"
#include "storage.h"
#include "dir.h"
#include "playback.h"
#include "strnatcmp.h"
#include "panic.h"
#define str_or_empty(x) (x ? x : "(NULL)")
#define FILE_SEARCH_INSTRUCTIONS ROCKBOX_DIR "/tagnavi.config"
static int tagtree_play_folder(struct tree_context* c);
/* this needs to be same size as struct entry (tree.h) and name needs to be
* the first; so that they're compatible enough to walk arrays of both
* derefencing the name member*/
struct tagentry {
char* name;
int newtable;
int extraseek;
};
static struct tagentry* tagtree_get_entry(struct tree_context *c, int id);
#define SEARCHSTR_SIZE 256
enum table {
ROOT = 1,
NAVIBROWSE,
ALLSUBENTRIES,
PLAYTRACK,
};
static const struct id3_to_search_mapping {
char *string;
size_t id3_offset;
} id3_to_search_mapping[] = {
{ "", 0 }, /* offset n/a */
{ "#directory#", 0 }, /* offset n/a */
{ "#title#", offsetof(struct mp3entry, title) },
{ "#artist#", offsetof(struct mp3entry, artist) },
{ "#album#", offsetof(struct mp3entry, album) },
{ "#genre#", offsetof(struct mp3entry, genre_string) },
{ "#composer#", offsetof(struct mp3entry, composer) },
{ "#albumartist#", offsetof(struct mp3entry, albumartist) },
};
enum variables {
var_sorttype = 100,
var_limit,
var_strip,
var_menu_start,
var_include,
var_rootmenu,
var_format,
menu_next,
menu_load,
menu_reload,
};
/* Capacity 10 000 entries (for example 10k different artists) */
#define UNIQBUF_SIZE (64*1024)
static long uniqbuf[UNIQBUF_SIZE / sizeof(long)];
#define MAX_TAGS 5
#define MAX_MENU_ID_SIZE 32
#define RELOAD_TAGTREE (-1024)
static bool sort_inverse;
/*
* "%3d. %s" autoscore title %sort = "inverse" %limit = "100"
*
* valid = true
* formatstr = "%-3d. %s"
* tags[0] = tag_autoscore
* tags[1] = tag_title
* tag_count = 2
*
* limit = 100
* sort_inverse = true
*/
struct display_format {
char name[32];
struct tagcache_search_clause *clause[TAGCACHE_MAX_CLAUSES];
int clause_count;
char *formatstr;
int group_id;
int tags[MAX_TAGS];
int tag_count;
int limit;
int strip;
bool sort_inverse;
};
static struct display_format *formats[TAGMENU_MAX_FMTS];
static int format_count;
struct menu_entry {
char name[64];
int type;
struct search_instruction {
char name[64];
int tagorder[MAX_TAGS];
int tagorder_count;
struct tagcache_search_clause *clause[MAX_TAGS][TAGCACHE_MAX_CLAUSES];
int format_id[MAX_TAGS];
int clause_count[MAX_TAGS];
int result_seek[MAX_TAGS];
} si;
int link;
};
struct menu_root {
char title[64];
char id[MAX_MENU_ID_SIZE];
int itemcount;
struct menu_entry *items[TAGMENU_MAX_ITEMS];
};
struct match
{
const char* str;
int symbol;
};
/* Statusbar text of the current view. */
static char current_title[MAX_TAGS][128];
static struct menu_root * menus[TAGMENU_MAX_MENUS];
static struct menu_root * menu;
static struct search_instruction *csi;
static const char *strp;
static int menu_count;
static int rootmenu;
static int current_offset;
static int current_entry_count;
static struct tree_context *tc;
/* a few memory alloc helper */
static int tagtree_handle, lock_count;
static size_t tagtree_bufsize, tagtree_buf_used;
#define UPDATE(x, y) { x = (typeof(x))((char*)(x) + (y)); }
static int move_callback(int handle, void* current, void* new)
{
(void)handle; (void)current; (void)new;
ptrdiff_t diff = new - current;
if (lock_count > 0)
return BUFLIB_CB_CANNOT_MOVE;
if (menu)
UPDATE(menu, diff);
if (csi)
UPDATE(csi, diff);
/* loop over menus */
for(int i = 0; i < menu_count; i++)
{
struct menu_root* menu = menus[i];
/* then over the menu_entries of a menu */
for(int j = 0; j < menu->itemcount; j++)
{
struct menu_entry* mentry = menu->items[j];
/* then over the search_instructions of each menu_entry */
for(int k = 0; k < mentry->si.tagorder_count; k++)
{
for(int l = 0; l < mentry->si.clause_count[k]; l++)
{
UPDATE(mentry->si.clause[k][l]->str, diff);
UPDATE(mentry->si.clause[k][l], diff);
}
}
UPDATE(menu->items[j], diff);
}
UPDATE(menus[i], diff);
}
/* now the same game for formats */
for(int i = 0; i < format_count; i++)
{
for(int j = 0; j < formats[i]->clause_count; j++)
{
UPDATE(formats[i]->clause[j]->str, diff);
UPDATE(formats[i]->clause[j], diff);
}
if (formats[i]->formatstr)
UPDATE(formats[i]->formatstr, diff);
UPDATE(formats[i], diff);
}
return BUFLIB_CB_OK;
}
#undef UPDATE
static inline void tagtree_lock(void)
{
lock_count++;
}
static inline void tagtree_unlock(void)
{
lock_count--;
}
static struct buflib_callbacks ops = {
.move_callback = move_callback,
.shrink_callback = NULL,
};
static void* tagtree_alloc(size_t size)
{
size = ALIGN_UP(size, sizeof(void*));
if (size > (tagtree_bufsize - tagtree_buf_used))
return NULL;
char* buf = core_get_data(tagtree_handle) + tagtree_buf_used;
tagtree_buf_used += size;
return buf;
}
static void* tagtree_alloc0(size_t size)
{
void* ret = tagtree_alloc(size);
if (ret)
memset(ret, 0, size);
return ret;
}
static char* tagtree_strdup(const char* buf)
{
size_t len = strlen(buf) + 1;
char* dest = tagtree_alloc(len);
if (dest)
strcpy(dest, buf);
return dest;
}
/* save to call without locking */
static int get_token_str(char *buf, int size)
{
/* Find the start. */
while (*strp != '"' && *strp != '\0')
strp++;
if (*strp == '\0' || *(++strp) == '\0')
return -1;
/* Read the data. */
while (*strp != '"' && *strp != '\0' && --size > 0)
*(buf++) = *(strp++);
*buf = '\0';
if (*strp != '"')
return -2;
strp++;
return 0;
}
static int get_tag(int *tag)
{
static const struct match get_tag_match[] =
{
{"album", tag_album},
{"artist", tag_artist},
{"bitrate", tag_bitrate},
{"composer", tag_composer},
{"comment", tag_comment},
{"albumartist", tag_albumartist},
{"ensemble", tag_albumartist},
{"grouping", tag_grouping},
{"genre", tag_genre},
{"length", tag_length},
{"Lm", tag_virt_length_min},
{"Ls", tag_virt_length_sec},
{"Pm", tag_virt_playtime_min},
{"Ps", tag_virt_playtime_sec},
{"title", tag_title},
{"filename", tag_filename},
{"basename", tag_virt_basename},
{"tracknum", tag_tracknumber},
{"canonicalartist", tag_virt_canonicalartist},
{"discnum", tag_discnumber},
{"year", tag_year},
{"playcount", tag_playcount},
{"rating", tag_rating},
{"lastplayed", tag_lastplayed},
{"lastelapsed", tag_lastelapsed},
{"lastoffset", tag_lastoffset},
{"commitid", tag_commitid},
{"entryage", tag_virt_entryage},
{"autoscore", tag_virt_autoscore},
{"%sort", var_sorttype},
{"%limit", var_limit},
{"%strip", var_strip},
{"%menu_start", var_menu_start},
{"%include", var_include},
{"%root_menu", var_rootmenu},
{"%format", var_format},
{"->", menu_next},
{"==>", menu_load},
{"%reload", menu_reload}
};
char buf[128];
unsigned int i;
/* Find the start. */
while ((*strp == ' ' || *strp == '>') && *strp != '\0')
strp++;
if (*strp == '\0' || *strp == '?')
return 0;
for (i = 0; i < sizeof(buf)-1; i++)
{
if (*strp == '\0' || *strp == ' ')
break ;
buf[i] = *strp;
strp++;
}
buf[i] = '\0';
for (i = 0; i < ARRAYLEN(get_tag_match); i++)
{
if (!strcasecmp(buf, get_tag_match[i].str))
{
*tag = get_tag_match[i].symbol;
return 1;
}
}
logf("NO MATCH: %s\n", buf);
if (buf[0] == '?')
return 0;
return -1;
}
static int get_clause(int *condition)
{
static const struct match get_clause_match[] =
{
{"=", clause_is},
{"==", clause_is},
{"!=", clause_is_not},
{">", clause_gt},
{">=", clause_gteq},
{"<", clause_lt},
{"<=", clause_lteq},
{"~", clause_contains},
{"!~", clause_not_contains},
{"^", clause_begins_with},
{"!^", clause_not_begins_with},
{"$", clause_ends_with},
{"!$", clause_not_ends_with},
{"@", clause_oneof}
};
char buf[4];
unsigned int i;
/* Find the start. */
while (*strp == ' ' && *strp != '\0')
strp++;
if (*strp == '\0')
return 0;
for (i = 0; i < sizeof(buf)-1; i++)
{
if (*strp == '\0' || *strp == ' ')
break ;
buf[i] = *strp;
strp++;
}
buf[i] = '\0';
for (i = 0; i < ARRAYLEN(get_clause_match); i++)
{
if (!strcasecmp(buf, get_clause_match[i].str))
{
*condition = get_clause_match[i].symbol;
return 1;
}
}
return 0;
}
static bool read_clause(struct tagcache_search_clause *clause)
{
char buf[SEARCHSTR_SIZE];
unsigned int i;
if (get_tag(&clause->tag) <= 0)
return false;
if (get_clause(&clause->type) <= 0)
return false;
if (get_token_str(buf, sizeof buf) < 0)
return false;
for (i=0; i<ARRAYLEN(id3_to_search_mapping); i++)
{
if (!strcasecmp(buf, id3_to_search_mapping[i].string))
break;
}
if (i<ARRAYLEN(id3_to_search_mapping)) /* runtime search operand found */
{
clause->source = source_runtime+i;
clause->str = tagtree_alloc(SEARCHSTR_SIZE);
}
else
{
clause->source = source_constant;
clause->str = tagtree_strdup(buf);
}
if (!clause->str)
{
logf("tagtree failed to allocate %s", "clause string");
return false;
}
else if (TAGCACHE_IS_NUMERIC(clause->tag))
{
clause->numeric = true;
clause->numeric_data = atoi(clause->str);
}
else
clause->numeric = false;
logf("got clause: %d/%d [%s]", clause->tag, clause->type, clause->str);
return true;
}
static bool read_variable(char *buf, int size)
{
int condition;
if (!get_clause(&condition))
return false;
if (condition != clause_is)
return false;
if (get_token_str(buf, size) < 0)
return false;
return true;
}
/* "%3d. %s" autoscore title %sort = "inverse" %limit = "100" */
static int get_format_str(struct display_format *fmt)
{
int ret;
char buf[128];
int i;
memset(fmt, 0, sizeof(struct display_format));
if (get_token_str(fmt->name, sizeof fmt->name) < 0)
return -10;
/* Determine the group id */
fmt->group_id = 0;
for (i = 0; i < format_count; i++)
{
if (!strcasecmp(formats[i]->name, fmt->name))
{
fmt->group_id = formats[i]->group_id;
break;
}
if (formats[i]->group_id > fmt->group_id)
fmt->group_id = formats[i]->group_id;
}
if (i == format_count)
fmt->group_id++;
logf("format: (%d) %s", fmt->group_id, fmt->name);
if (get_token_str(buf, sizeof buf) < 0)
return -10;
fmt->formatstr = tagtree_strdup(buf);
while (fmt->tag_count < MAX_TAGS)
{
ret = get_tag(&fmt->tags[fmt->tag_count]);
if (ret < 0)
return -11;
if (ret == 0)
break;
switch (fmt->tags[fmt->tag_count]) {
case var_sorttype:
if (!read_variable(buf, sizeof buf))
return -12;
if (!strcasecmp("inverse", buf))
fmt->sort_inverse = true;
break;
case var_limit:
if (!read_variable(buf, sizeof buf))
return -13;
fmt->limit = atoi(buf);
break;
case var_strip:
if (!read_variable(buf, sizeof buf))
return -14;
fmt->strip = atoi(buf);
break;
default:
fmt->tag_count++;
}
}
return 1;
}
static int add_format(const char *buf)
{
if (format_count >= TAGMENU_MAX_FMTS)
{
logf("too many formats");
return -1;
}
strp = buf;
if (formats[format_count] == NULL)
formats[format_count] = tagtree_alloc0(sizeof(struct display_format));
if (!formats[format_count])
{
logf("tagtree failed to allocate %s", "format string");
return -2;
}
if (get_format_str(formats[format_count]) < 0)
{
logf("get_format_str() parser failed!");
if (formats[format_count])
memset(formats[format_count], 0, sizeof(struct display_format));
return -4;
}
while (*strp != '\0' && *strp != '?')
strp++;
if (*strp == '?')
{
int clause_count = 0;
strp++;
tagtree_lock();
while (1)
{
struct tagcache_search_clause *new_clause;
if (clause_count >= TAGCACHE_MAX_CLAUSES)
{
logf("too many clauses");
break;
}
new_clause = tagtree_alloc(sizeof(struct tagcache_search_clause));
if (!new_clause)
{
logf("tagtree failed to allocate %s", "search clause");
return -3;
}
formats[format_count]->clause[clause_count] = new_clause;
if (!read_clause(new_clause))
break;
clause_count++;
}
tagtree_unlock();
formats[format_count]->clause_count = clause_count;
}
format_count++;
return 1;
}
static int get_condition(struct search_instruction *inst)
{
struct tagcache_search_clause *new_clause;
int clause_count;
char buf[128];
switch (*strp)
{
case '=':
{
int i;
if (get_token_str(buf, sizeof buf) < 0)
return -1;
for (i = 0; i < format_count; i++)
{
if (!strcasecmp(formats[i]->name, buf))
break;
}
if (i == format_count)
{
logf("format not found: %s", buf);
return -2;
}
inst->format_id[inst->tagorder_count] = formats[i]->group_id;
return 1;
}
case '?':
case ' ':
case '&':
strp++;
return 1;
case '-':
case '\0':
return 0;
}
clause_count = inst->clause_count[inst->tagorder_count];
if (clause_count >= TAGCACHE_MAX_CLAUSES)
{
logf("Too many clauses");
return -2;
}
new_clause = tagtree_alloc(sizeof(struct tagcache_search_clause));
if (!new_clause)
{
logf("tagtree failed to allocate %s", "search clause");
return -3;
}
inst->clause[inst->tagorder_count][clause_count] = new_clause;
if (*strp == '|')
{
strp++;
new_clause->type = clause_logical_or;
}
else
{
tagtree_lock();
bool ret = read_clause(new_clause);
tagtree_unlock();
if (!ret)
return -1;
}
inst->clause_count[inst->tagorder_count]++;
return 1;
}
/* example search:
* "Best" artist ? year >= "2000" & title !^ "crap" & genre = "good genre" \
* : album ? year >= "2000" : songs
* ^ begins with
* * contains
* $ ends with
*/
static bool parse_search(struct menu_entry *entry, const char *str)
{
int ret;
int type;
struct search_instruction *inst = &entry->si;
char buf[MAX_PATH];
int i;
strp = str;
/* Parse entry name */
if (get_token_str(entry->name, sizeof entry->name) < 0)
{
logf("No name found.");
return false;
}
/* Parse entry type */
if (get_tag(&entry->type) <= 0)
return false;
if (entry->type == menu_load)
{
if (get_token_str(buf, sizeof buf) < 0)
return false;
/* Find the matching root menu or "create" it */
for (i = 0; i < menu_count; i++)
{
if (!strcasecmp(menus[i]->id, buf))
{
entry->link = i;
return true;
}
}
if (menu_count >= TAGMENU_MAX_MENUS)
{
logf("max menucount reached");
return false;
}
/* Allocate a new menu unless link is found. */
menus[menu_count] = tagtree_alloc0(sizeof(struct menu_root));
if (!menus[menu_count])
{
logf("tagtree failed to allocate %s", "menu");
return false;
}
strlcpy(menus[menu_count]->id, buf, MAX_MENU_ID_SIZE);
entry->link = menu_count;
++menu_count;
return true;
}
if (entry->type != menu_next)
return false;
while (inst->tagorder_count < MAX_TAGS)
{
ret = get_tag(&inst->tagorder[inst->tagorder_count]);
if (ret < 0)
{
logf("Parse error #1");
logf("%s", strp);
return false;
}
if (ret == 0)
break ;
logf("tag: %d", inst->tagorder[inst->tagorder_count]);
tagtree_lock();
while ( (ret = get_condition(inst)) > 0 ) ;
tagtree_unlock();
if (ret < 0)
return false;
inst->tagorder_count++;
if (get_tag(&type) <= 0 || type != menu_next)
break;
}
return true;
}
static int compare(const void *p1, const void *p2)
{
struct tagentry *e1 = (struct tagentry *)p1;
struct tagentry *e2 = (struct tagentry *)p2;
if (sort_inverse)
return strncasecmp(e2->name, e1->name, MAX_PATH);
return strncasecmp(e1->name, e2->name, MAX_PATH);
}
static int nat_compare(const void *p1, const void *p2)
{
struct tagentry *e1 = (struct tagentry *)p1;
struct tagentry *e2 = (struct tagentry *)p2;
if (sort_inverse)
return strnatcasecmp(e2->name, e1->name);
return strnatcasecmp(e1->name, e2->name);
}
static void tagtree_buffer_event(unsigned short id, void *ev_data)
{
(void)id;
struct tagcache_search tcs;
struct mp3entry *id3 = ((struct track_event *)ev_data)->id3;
bool runtimedb = global_settings.runtimedb;
bool autoresume = global_settings.autoresume_enable;
/* Do not gather data unless proper setting has been enabled. */
if (!runtimedb && !autoresume)
return;
logf("be:%s", id3->path);
while (! tagcache_is_fully_initialized())
yield();
if (!tagcache_find_index(&tcs, id3->path))
{
logf("tc stat: not found: %s", id3->path);
return;
}
if (runtimedb)
{
id3->playcount = tagcache_get_numeric(&tcs, tag_playcount);
if (!id3->rating)
id3->rating = tagcache_get_numeric(&tcs, tag_rating);
id3->lastplayed = tagcache_get_numeric(&tcs, tag_lastplayed);
id3->score = tagcache_get_numeric(&tcs, tag_virt_autoscore) / 10;
id3->playtime = tagcache_get_numeric(&tcs, tag_playtime);
logf("-> %ld/%ld", id3->playcount, id3->playtime);
}
if (autoresume)
{
/* Load current file resume info if not already defined (by
another resume mechanism) */
if (id3->elapsed == 0)
{
id3->elapsed = tagcache_get_numeric(&tcs, tag_lastelapsed);
logf("tagtree_buffer_event: Set elapsed for %s to %lX\n",
str_or_empty(id3->title), id3->elapsed);
}
if (id3->offset == 0)
{
id3->offset = tagcache_get_numeric(&tcs, tag_lastoffset);
logf("tagtree_buffer_event: Set offset for %s to %lX\n",
str_or_empty(id3->title), id3->offset);
}
}
/* Store our tagcache index pointer. */
id3->tagcache_idx = tcs.idx_id+1;
tagcache_search_finish(&tcs);
}
static void tagtree_track_finish_event(unsigned short id, void *ev_data)
{
(void)id;
struct track_event *te = (struct track_event *)ev_data;
struct mp3entry *id3 = te->id3;
long tagcache_idx = id3->tagcache_idx;
if (!tagcache_idx)
{
logf("No tagcache index pointer found");
return;
}
tagcache_idx--;
bool auto_skip = te->flags & TEF_AUTO_SKIP;
bool runtimedb = global_settings.runtimedb;
bool autoresume = global_settings.autoresume_enable;
/* Don't process unplayed tracks, or tracks interrupted within the
first 15 seconds but always process autoresume point */
if (runtimedb && (id3->elapsed == 0
|| (id3->elapsed < 15 * 1000 && !auto_skip)
))
{
logf("not db logging unplayed or skipped track");
runtimedb = false;
}
/* 3s because that is the threshold the WPS uses to rewind instead
of skip backwards */
if (autoresume && (id3->elapsed == 0
|| (id3->elapsed < 3 * 1000 && !auto_skip)))
{
logf("not logging autoresume");
autoresume = false;
}
/* Do not gather data unless proper setting has been enabled and at least
one is still slated to be recorded */
if (!(runtimedb || autoresume))
{
logf("runtimedb gathering and autoresume not enabled/ignored");
return;
}
long lastplayed = tagcache_increase_serial();
if (lastplayed < 0)
{
logf("incorrect tc serial:%ld", lastplayed);
return;
}
if (runtimedb)
{
long playcount;
long playtime;
playcount = id3->playcount + 1;
/* Ignore the last 15s (crossfade etc.) */
playtime = id3->playtime + MIN(id3->length, id3->elapsed + 15 * 1000);
logf("ube:%s", id3->path);
logf("-> %ld/%ld", playcount, playtime);
logf("-> %ld/%ld/%ld", id3->elapsed, id3->length,
MIN(id3->length, id3->elapsed + 15 * 1000));
/* Queue the updates to the tagcache system. */
tagcache_update_numeric(tagcache_idx, tag_playcount, playcount);
tagcache_update_numeric(tagcache_idx, tag_playtime, playtime);
tagcache_update_numeric(tagcache_idx, tag_lastplayed, lastplayed);
}
if (autoresume)
{
unsigned long elapsed = auto_skip ? 0 : id3->elapsed;
unsigned long offset = auto_skip ? 0 : id3->offset;
tagcache_update_numeric(tagcache_idx, tag_lastelapsed, elapsed);
tagcache_update_numeric(tagcache_idx, tag_lastoffset, offset);
logf("tagtree_track_finish_event: Save resume for %s: %lX %lX",
str_or_empty(id3->title), elapsed, offset);
}
}
int tagtree_export(void)
{
struct tagcache_search tcs;
splash(0, str(LANG_CREATING));
if (!tagcache_create_changelog(&tcs))
{
splash(HZ*2, ID2P(LANG_FAILED));
}
return 0;
}
int tagtree_import(void)
{
splash(0, ID2P(LANG_WAIT));
if (!tagcache_import_changelog())
{
splash(HZ*2, ID2P(LANG_FAILED));
}
return 0;
}
static bool parse_menu(const char *filename);
static int parse_line(int n, char *buf, void *parameters)
{
char data[256];
int variable;
static bool read_menu;
int i;
char *p;
(void)parameters;
/* Strip possible <CR> at end of line. */
p = strchr(buf, '\r');
if (p != NULL)
*p = '\0';
logf("parse:%d/%s", n, buf);
/* First line, do initialisation. */
if (n == 0)
{
if (strcasecmp(TAGNAVI_VERSION, buf))
{
logf("Version mismatch");
return -1;
}
read_menu = false;
}
if (buf[0] == '#')
return 0;
if (buf[0] == '\0')
{
if (read_menu)
{
/* End the menu */
read_menu = false;
}
return 0;
}
if (!read_menu)
{
strp = buf;
if (get_tag(&variable) <= 0)
return 0;
switch (variable)
{
case var_format:
if (add_format(strp) < 0)
{
logf("Format add fail: %s", data);
}
break;
case var_include:
if (get_token_str(data, sizeof(data)) < 0)
{
logf("%%include empty");
return 0;
}
if (!parse_menu(data))
{
logf("Load menu fail: %s", data);
}
break;
case var_menu_start:
if (menu_count >= TAGMENU_MAX_MENUS)
{
logf("max menucount reached");
return 0;
}
if (get_token_str(data, sizeof data) < 0)
{
logf("%%menu_start id empty");
return 0;
}
menu = NULL;
for (i = 0; i < menu_count; i++)
{
if (!strcasecmp(menus[i]->id, data))
{
menu = menus[i];
}
}
if (menu == NULL)
{
menus[menu_count] = tagtree_alloc0(sizeof(struct menu_root));
if (!menus[menu_count])
{
logf("tagtree failed to allocate %s", "menu");
return -2;
}
menu = menus[menu_count];
++menu_count;
strlcpy(menu->id, data, MAX_MENU_ID_SIZE);
}
if (get_token_str(menu->title, sizeof(menu->title)) < 0)
{
logf("%%menu_start title empty");
return 0;
}
logf("menu: %s", menu->title);
read_menu = true;
break;
case var_rootmenu:
/* Only set root menu once. */
if (rootmenu >= 0)
break;
if (get_token_str(data, sizeof(data)) < 0)
{
logf("%%rootmenu empty");
return 0;
}
for (i = 0; i < menu_count; i++)
{
if (!strcasecmp(menus[i]->id, data))
{
rootmenu = i;
}
}
break;
}
return 0;
}
if (menu->itemcount >= TAGMENU_MAX_ITEMS)
{
logf("max itemcount reached");
return 0;
}
/* Allocate */
if (menu->items[menu->itemcount] == NULL)
menu->items[menu->itemcount] = tagtree_alloc0(sizeof(struct menu_entry));
if (!menu->items[menu->itemcount])
{
logf("tagtree failed to allocate %s", "menu items");
return -2;
}
tagtree_lock();
if (parse_search(menu->items[menu->itemcount], buf))
menu->itemcount++;
tagtree_unlock();
return 0;
}
static bool parse_menu(const char *filename)
{
int fd;
char buf[1024];
int rc;
if (menu_count >= TAGMENU_MAX_MENUS)
{
logf("max menucount reached");
return false;
}
fd = open(filename, O_RDONLY);
if (fd < 0)
{
logf("Search instruction file not found.");
return false;
}
/* Now read file for real, parsing into si */
rc = fast_readline(fd, buf, sizeof buf, NULL, parse_line);
close(fd);
return (rc >= 0);
}
static void tagtree_unload(struct tree_context *c)
{
int i;
tagtree_lock();
remove_event(PLAYBACK_EVENT_TRACK_BUFFER, tagtree_buffer_event);
remove_event(PLAYBACK_EVENT_TRACK_FINISH, tagtree_track_finish_event);
if (c)
{
tree_lock_cache(c);
struct tagentry *dptr = core_get_data(c->cache.entries_handle);
menu = menus[c->currextra];
if (!menu)
{
logf("tagtree menu doesn't exist");
return;
}
for (i = 0; i < menu->itemcount; i++)
{
dptr->name = NULL;
dptr->newtable = 0;
dptr->extraseek = 0;
dptr++;
}
}
for (i = 0; i < menu_count; i++)
menus[i] = NULL;
menu_count = 0;
for (i = 0; i < format_count; i++)
formats[i] = NULL;
format_count = 0;
core_free(tagtree_handle);
tagtree_handle = 0;
tagtree_buf_used = 0;
tagtree_bufsize = 0;
if (c)
tree_unlock_cache(c);
tagtree_unlock();
if (lock_count > 0)
tagtree_unlock();/* second unlock to enable re-init */
}
void tagtree_init(void)
{
format_count = 0;
menu_count = 0;
menu = NULL;
rootmenu = -1;
tagtree_handle = core_alloc_maximum("tagtree", &tagtree_bufsize, &ops);
if (tagtree_handle < 0)
panicf("tagtree OOM");
if (!parse_menu(FILE_SEARCH_INSTRUCTIONS))
{
tagtree_unload(NULL);
return;
}
/* safety check since tree.c needs to cast tagentry to entry */
if (sizeof(struct tagentry) != sizeof(struct entry))
panicf("tagentry(%zu) and entry mismatch(%zu)",
sizeof(struct tagentry), sizeof(struct entry));
if (lock_count > 0)
panicf("tagtree locked after parsing");
/* If no root menu is set, assume it's the first single menu
* we have. That shouldn't normally happen. */
if (rootmenu < 0)
rootmenu = 0;
add_event(PLAYBACK_EVENT_TRACK_BUFFER, tagtree_buffer_event);
add_event(PLAYBACK_EVENT_TRACK_FINISH, tagtree_track_finish_event);
core_shrink(tagtree_handle, core_get_data(tagtree_handle), tagtree_buf_used);
}
static bool show_search_progress(bool init, int count)
{
static int last_tick = 0;
/* Don't show splashes for 1/2 second after starting search */
if (init)
{
last_tick = current_tick + HZ/2;
return true;
}
/* Update progress every 1/10 of a second */
if (TIME_AFTER(current_tick, last_tick + HZ/10))
{
splashf(0, str(LANG_PLAYLIST_SEARCH_MSG), count, str(LANG_OFF_ABORT));
if (action_userabort(TIMEOUT_NOBLOCK))
return false;
last_tick = current_tick;
yield();
}
return true;
}
static int format_str(struct tagcache_search *tcs, struct display_format *fmt,
char *buf, int buf_size)
{
char fmtbuf[20];
bool read_format = false;
unsigned fmtbuf_pos = 0;
int parpos = 0;
int buf_pos = 0;
int i;
memset(buf, 0, buf_size);
for (i = 0; fmt->formatstr[i] != '\0'; i++)
{
if (fmt->formatstr[i] == '%')
{
read_format = true;
fmtbuf_pos = 0;
if (parpos >= fmt->tag_count)
{
logf("too many format tags");
return -1;
}
}
char formatchar = fmt->formatstr[i];
if (read_format)
{
fmtbuf[fmtbuf_pos++] = formatchar;
if (fmtbuf_pos >= sizeof fmtbuf)
{
logf("format parse error");
return -2;
}
if (formatchar == 's' || formatchar == 'd')
{
unsigned space_left = buf_size - buf_pos;
char tmpbuf[MAX_PATH];
char *result;
fmtbuf[fmtbuf_pos] = '\0';
read_format = false;
switch (formatchar)
{
case 's':
if (fmt->tags[parpos] == tcs->type)
{
result = tcs->result;
}
else
{
/* Need to fetch the tag data. */
int tag = fmt->tags[parpos];
if (!tagcache_retrieve(tcs, tcs->idx_id,
(tag == tag_virt_basename ?
tag_filename : tag),
tmpbuf, sizeof tmpbuf))
{
logf("retrieve failed");
return -3;
}
if (tag == tag_virt_basename
&& (result = strrchr(tmpbuf, '/')) != NULL)
{
result++;
}
else
result = tmpbuf;
}
buf_pos +=
snprintf(&buf[buf_pos], space_left, fmtbuf, result);
break;
case 'd':
buf_pos +=
snprintf(&buf[buf_pos], space_left, fmtbuf,
tagcache_get_numeric(tcs, fmt->tags[parpos]));
}
parpos++;
}
}
else
buf[buf_pos++] = formatchar;
if (buf_pos >= buf_size - 1) /* need at least one more byte for \0 */
{
logf("buffer overflow");
return -4;
}
}
buf[buf_pos++] = '\0';
return 0;
}
static struct tagentry* get_entries(struct tree_context *tc)
{
return core_get_data(tc->cache.entries_handle);
}
static int retrieve_entries(struct tree_context *c, int offset, bool init)
{
struct tagcache_search tcs;
struct display_format *fmt;
int i;
int namebufused = 0;
int total_count = 0;
int special_entry_count = 0;
int level = c->currextra;
int tag;
bool sort = false;
int sort_limit;
int strip;
/* Show search progress straight away if the disk needs to spin up,
otherwise show it after the normal 1/2 second delay */
show_search_progress(
#ifdef HAVE_DISK_STORAGE
storage_disk_is_active()
#else
true
#endif
, 0);
if (c->currtable == ALLSUBENTRIES)
{
tag = tag_title;
level--;
}
else
tag = csi->tagorder[level];
if (tag == menu_reload)
return RELOAD_TAGTREE;
if (!tagcache_search(&tcs, tag))
return -1;
/* Prevent duplicate entries in the search list. */
tagcache_search_set_uniqbuf(&tcs, uniqbuf, UNIQBUF_SIZE);
if (level || csi->clause_count[0] || TAGCACHE_IS_NUMERIC(tag))
sort = true;
for (i = 0; i < level; i++)
{
if (TAGCACHE_IS_NUMERIC(csi->tagorder[i]))
{
static struct tagcache_search_clause cc;
memset(&cc, 0, sizeof(struct tagcache_search_clause));
cc.tag = csi->tagorder[i];
cc.type = clause_is;
cc.numeric = true;
cc.numeric_data = csi->result_seek[i];
tagcache_search_add_clause(&tcs, &cc);
}
else
{
tagcache_search_add_filter(&tcs, csi->tagorder[i],
csi->result_seek[i]);
}
}
/* because tagcache saves the clauses, we need to lock the buffer
* for the entire duration of the search */
tagtree_lock();
for (i = 0; i <= level; i++)
{
int j;
for (j = 0; j < csi->clause_count[i]; j++)
tagcache_search_add_clause(&tcs, csi->clause[i][j]);
}
current_offset = offset;
current_entry_count = 0;
c->dirfull = false;
fmt = NULL;
for (i = 0; i < format_count; i++)
{
if (formats[i]->group_id == csi->format_id[level])
fmt = formats[i];
}
if (fmt)
{
sort_inverse = fmt->sort_inverse;
sort_limit = fmt->limit;
strip = fmt->strip;
sort = true;
}
else
{
sort_inverse = false;
sort_limit = 0;
strip = 0;
}
/* lock buflib out due to possible yields */
tree_lock_cache(c);
struct tagentry *dptr = core_get_data(c->cache.entries_handle);
if (tag != tag_title && tag != tag_filename)
{
if (offset == 0)
{
dptr->newtable = ALLSUBENTRIES;
dptr->name = str(LANG_TAGNAVI_ALL_TRACKS);
dptr++;
current_entry_count++;
special_entry_count++;
}
if (offset <= 1)
{
dptr->newtable = NAVIBROWSE;
dptr->name = str(LANG_TAGNAVI_RANDOM);
dptr->extraseek = -1;
dptr++;
current_entry_count++;
special_entry_count++;
}
total_count += 2;
}
while (tagcache_get_next(&tcs))
{
if (total_count++ < offset)
continue;
dptr->newtable = NAVIBROWSE;
if (tag == tag_title || tag == tag_filename)
{
dptr->newtable = PLAYTRACK;
dptr->extraseek = tcs.idx_id;
}
else
dptr->extraseek = tcs.result_seek;
fmt = NULL;
/* Check the format */
tagtree_lock();
for (i = 0; i < format_count; i++)
{
if (formats[i]->group_id != csi->format_id[level])
continue;
if (tagcache_check_clauses(&tcs, formats[i]->clause,
formats[i]->clause_count))
{
fmt = formats[i];
break;
}
}
tagtree_unlock();
if (strcmp(tcs.result, UNTAGGED) == 0)
{
tcs.result = str(LANG_TAGNAVI_UNTAGGED);
tcs.result_len = strlen(tcs.result);
tcs.ramresult = true;
}
if (!tcs.ramresult || fmt)
{
dptr->name = core_get_data(c->cache.name_buffer_handle)+namebufused;
if (fmt)
{
int ret = format_str(&tcs, fmt, dptr->name,
c->cache.name_buffer_size - namebufused);
if (ret == -4) /* buffer full */
{
logf("chunk mode #2: %d", current_entry_count);
c->dirfull = true;
sort = false;
break ;
}
else if (ret < 0)
{
logf("format_str() failed");
tagcache_search_finish(&tcs);
tree_unlock_cache(c);
tagtree_unlock();
return 0;
}
else
namebufused += strlen(dptr->name)+1;
}
else
{
namebufused += tcs.result_len;
if (namebufused < c->cache.name_buffer_size)
strcpy(dptr->name, tcs.result);
else
{
logf("chunk mode #2a: %d", current_entry_count);
c->dirfull = true;
sort = false;
break ;
}
}
}
else
dptr->name = tcs.result;
dptr++;
current_entry_count++;
if (current_entry_count >= c->cache.max_entries)
{
logf("chunk mode #3: %d", current_entry_count);
c->dirfull = true;
sort = false;
break ;
}
if (init && !tcs.ramsearch)
{
if (!show_search_progress(false, total_count))
{ /* user aborted */
tagcache_search_finish(&tcs);
tree_unlock_cache(c);
tagtree_unlock();
return current_entry_count;
}
}
}
if (sort)
{
struct tagentry *entries = get_entries(c);
qsort(&entries[special_entry_count],
current_entry_count - special_entry_count,
sizeof(struct tagentry),
global_settings.interpret_numbers ? nat_compare : compare);
}
if (!init)
{
tagcache_search_finish(&tcs);
tree_unlock_cache(c);
tagtree_unlock();
return current_entry_count;
}
while (tagcache_get_next(&tcs))
{
if (!tcs.ramsearch)
{
if (!show_search_progress(false, total_count))
break;
}
total_count++;
}
tagcache_search_finish(&tcs);
tree_unlock_cache(c);
tagtree_unlock();
if (!sort && (sort_inverse || sort_limit))
{
splashf(HZ*4, ID2P(LANG_SHOWDIR_BUFFER_FULL), total_count);
logf("Too small dir buffer");
return 0;
}
if (sort_limit)
total_count = MIN(total_count, sort_limit);
if (strip)
{
dptr = get_entries(c);
for (i = special_entry_count; i < current_entry_count; i++, dptr++)
{
int len = strlen(dptr->name);
if (len < strip)
continue;
dptr->name = &dptr->name[strip];
}
}
return total_count;
}
static int load_root(struct tree_context *c)
{
struct tagentry *dptr = core_get_data(c->cache.entries_handle);
int i;
tc = c;
c->currtable = ROOT;
if (c->dirlevel == 0)
c->currextra = rootmenu;
menu = menus[c->currextra];
if (menu == NULL)
return 0;
if (menu->itemcount > c->cache.max_entries)
panicf("%s tree_cache too small", __func__);
for (i = 0; i < menu->itemcount; i++)
{
dptr->name = menu->items[i]->name;
switch (menu->items[i]->type)
{
case menu_next:
dptr->newtable = NAVIBROWSE;
dptr->extraseek = i;
break;
case menu_load:
dptr->newtable = ROOT;
dptr->extraseek = menu->items[i]->link;
break;
}
dptr++;
}
current_offset = 0;
current_entry_count = i;
return i;
}
int tagtree_load(struct tree_context* c)
{
int count;
int table = c->currtable;
c->dirsindir = 0;
if (!table)
{
c->dirfull = false;
table = ROOT;
c->currtable = table;
c->currextra = rootmenu;
}
switch (table)
{
case ROOT:
count = load_root(c);
break;
case ALLSUBENTRIES:
case NAVIBROWSE:
logf("navibrowse...");
cpu_boost(true);
count = retrieve_entries(c, 0, true);
cpu_boost(false);
break;
default:
logf("Unsupported table %d\n", table);
return -1;
}
if (count < 0)
{
if (count != RELOAD_TAGTREE)
splash(HZ, str(LANG_TAGCACHE_BUSY));
else /* unload and re-init tagtree */
{
splash(HZ, str(LANG_WAIT));
tagtree_unload(c);
tagtree_init();
}
c->dirlevel = 0;
count = load_root(c);
}
/* The _total_ numer of entries available. */
c->dirlength = c->filesindir = count;
return count;
}
int tagtree_enter(struct tree_context* c)
{
int rc = 0;
struct tagentry *dptr;
struct mp3entry *id3;
int newextra;
int seek;
int source;
dptr = tagtree_get_entry(c, c->selected_item);
c->dirfull = false;
seek = dptr->extraseek;
if (seek == -1)
{
if(c->filesindir<=2)
return 0;
srand(current_tick);
dptr = (tagtree_get_entry(c, 2+(rand() % (c->filesindir-2))));
seek = dptr->extraseek;
}
newextra = dptr->newtable;
if (c->dirlevel >= MAX_DIR_LEVELS)
return 0;
c->selected_item_history[c->dirlevel]=c->selected_item;
c->table_history[c->dirlevel] = c->currtable;
c->extra_history[c->dirlevel] = c->currextra;
c->pos_history[c->dirlevel] = c->firstpos;
c->dirlevel++;
/* lock buflib for possible I/O to protect dptr */
tree_lock_cache(c);
tagtree_lock();
switch (c->currtable) {
case ROOT:
c->currextra = newextra;
if (newextra == ROOT)
{
menu = menus[seek];
c->currextra = seek;
}
else if (newextra == NAVIBROWSE)
{
int i, j;
csi = &menu->items[seek]->si;
c->currextra = 0;
strlcpy(current_title[c->currextra], dptr->name,
sizeof(current_title[0]));
/* Read input as necessary. */
for (i = 0; i < csi->tagorder_count; i++)
{
for (j = 0; j < csi->clause_count[i]; j++)
{
char* searchstring;
if (csi->clause[i][j]->type == clause_logical_or)
continue;
source = csi->clause[i][j]->source;
if (source == source_constant)
continue;
searchstring=csi->clause[i][j]->str;
*searchstring = '\0';
id3 = audio_current_track();
if (source == source_current_path && id3)
{
char *e;
strlcpy(searchstring, id3->path, SEARCHSTR_SIZE);
e = strrchr(searchstring, '/');
if (e)
*e = '\0';
}
else if (source > source_runtime && id3)
{
int k = source-source_runtime;
int offset = id3_to_search_mapping[k].id3_offset;
char **src = (char**)((char*)id3 + offset);
if (*src)
{
strlcpy(searchstring, *src, SEARCHSTR_SIZE);
}
}
else
{
rc = kbd_input(searchstring, SEARCHSTR_SIZE, NULL);
if (rc < 0 || !searchstring[0])
{
tagtree_exit(c);
tree_unlock_cache(c);
tagtree_unlock();
return 0;
}
if (csi->clause[i][j]->numeric)
csi->clause[i][j]->numeric_data = atoi(searchstring);
}
}
}
}
c->currtable = newextra;
break;
case NAVIBROWSE:
case ALLSUBENTRIES:
if (newextra == PLAYTRACK)
{
if (global_settings.party_mode && audio_status()) {
splash(HZ, ID2P(LANG_PARTY_MODE));
break;
}
c->dirlevel--;
/* about to create a new current playlist...
allow user to cancel the operation */
if (!warn_on_pl_erase())
break;
if (tagtree_play_folder(c) >= 0)
rc = 2;
break;
}
c->currtable = newextra;
csi->result_seek[c->currextra] = seek;
if (c->currextra < csi->tagorder_count-1)
c->currextra++;
else
c->dirlevel--;
/* Update the statusbar title */
strlcpy(current_title[c->currextra], dptr->name,
sizeof(current_title[0]));
break;
default:
c->dirlevel--;
break;
}
c->selected_item=0;
gui_synclist_select_item(&tree_lists, c->selected_item);
tree_unlock_cache(c);
tagtree_unlock();
return rc;
}
void tagtree_exit(struct tree_context* c)
{
c->dirfull = false;
if (c->dirlevel > 0)
c->dirlevel--;
c->selected_item=c->selected_item_history[c->dirlevel];
gui_synclist_select_item(&tree_lists, c->selected_item);
c->currtable = c->table_history[c->dirlevel];
c->currextra = c->extra_history[c->dirlevel];
c->firstpos = c->pos_history[c->dirlevel];
}
int tagtree_get_filename(struct tree_context* c, char *buf, int buflen)
{
struct tagcache_search tcs;
int extraseek = tagtree_get_entry(c, c->selected_item)->extraseek;
if (!tagcache_search(&tcs, tag_filename))
return -1;
if (!tagcache_retrieve(&tcs, extraseek, tcs.type, buf, buflen))
{
tagcache_search_finish(&tcs);
return -2;
}
tagcache_search_finish(&tcs);
return 0;
}
static bool insert_all_playlist(struct tree_context *c, int position, bool queue)
{
struct tagcache_search tcs;
int i;
char buf[MAX_PATH];
int from, to, direction;
int files_left = c->filesindir;
cpu_boost(true);
if (!tagcache_search(&tcs, tag_filename))
{
splash(HZ, ID2P(LANG_TAGCACHE_BUSY));
cpu_boost(false);
return false;
}
if (position == PLAYLIST_REPLACE)
{
if (playlist_remove_all_tracks(NULL) == 0)
position = PLAYLIST_INSERT_LAST;
else
{
cpu_boost(false);
return false;
}
}
from = 0;
to = c->filesindir;
direction = 1;
for (i = from; i != to; i += direction)
{
/* Count back to zero */
if (!show_search_progress(false, files_left--))
break;
if (!tagcache_retrieve(&tcs, tagtree_get_entry(c, i)->extraseek,
tcs.type, buf, sizeof buf))
{
continue;
}
if (playlist_insert_track(NULL, buf, position, queue, false) < 0)
{
logf("playlist_insert_track failed");
break;
}
yield();
if (position == PLAYLIST_INSERT_FIRST)
{
position = PLAYLIST_INSERT;
}
}
playlist_sync(NULL);
tagcache_search_finish(&tcs);
cpu_boost(false);
return true;
}
bool tagtree_insert_selection_playlist(int position, bool queue)
{
char buf[MAX_PATH];
int dirlevel = tc->dirlevel;
int newtable;
show_search_progress(
#ifdef HAVE_DISK_STORAGE
storage_disk_is_active()
#else
true
#endif
, 0);
/* We need to set the table to allsubentries. */
newtable = tagtree_get_entry(tc, tc->selected_item)->newtable;
/* Insert a single track? */
if (newtable == PLAYTRACK)
{
if (tagtree_get_filename(tc, buf, sizeof buf) < 0)
{
logf("tagtree_get_filename failed");
return false;
}
playlist_insert_track(NULL, buf, position, queue, true);
return true;
}
if (newtable == NAVIBROWSE)
{
tagtree_enter(tc);
tagtree_load(tc);
newtable = tagtree_get_entry(tc, tc->selected_item)->newtable;
}
else if (newtable != ALLSUBENTRIES)
{
logf("unsupported table: %d", newtable);
return false;
}
/* Now the current table should be allsubentries. */
if (newtable != PLAYTRACK)
{
tagtree_enter(tc);
tagtree_load(tc);
newtable = tagtree_get_entry(tc, tc->selected_item)->newtable;
/* And now the newtable should be playtrack. */
if (newtable != PLAYTRACK)
{
logf("newtable: %d !!", newtable);
tc->dirlevel = dirlevel;
return false;
}
}
if (tc->filesindir <= 0)
splash(HZ, ID2P(LANG_END_PLAYLIST));
else
{
logf("insert_all_playlist");
if (!insert_all_playlist(tc, position, queue))
splash(HZ*2, ID2P(LANG_FAILED));
}
/* Finally return the dirlevel to its original value. */
while (tc->dirlevel > dirlevel)
tagtree_exit(tc);
tagtree_load(tc);
return true;
}
static int tagtree_play_folder(struct tree_context* c)
{
if (playlist_create(NULL, NULL) < 0)
{
logf("Failed creating playlist\n");
return -1;
}
if (!insert_all_playlist(c, PLAYLIST_INSERT_LAST, false))
return -2;
if (global_settings.playlist_shuffle)
c->selected_item = playlist_shuffle(current_tick, c->selected_item);
if (!global_settings.play_selected)
c->selected_item = 0;
gui_synclist_select_item(&tree_lists, c->selected_item);
playlist_start(c->selected_item, 0, 0);
playlist_get_current()->num_inserted_tracks = 0; /* make warn on playlist erase work */
return 0;
}
static struct tagentry* tagtree_get_entry(struct tree_context *c, int id)
{
struct tagentry *entry;
int realid = id - current_offset;
/* Load the next chunk if necessary. */
if (realid >= current_entry_count || realid < 0)
{
cpu_boost(true);
if (retrieve_entries(c, MAX(0, id - (current_entry_count / 2)),
false) < 0)
{
logf("retrieve failed");
cpu_boost(false);
return NULL;
}
realid = id - current_offset;
cpu_boost(false);
}
entry = get_entries(c);
return &entry[realid];
}
char* tagtree_get_entry_name(struct tree_context *c, int id,
char* buf, size_t bufsize)
{
struct tagentry *entry = tagtree_get_entry(c, id);
if (!entry)
return NULL;
strlcpy(buf, entry->name, bufsize);
return buf;
}
char *tagtree_get_title(struct tree_context* c)
{
switch (c->currtable)
{
case ROOT:
return menu->title;
case NAVIBROWSE:
case ALLSUBENTRIES:
return current_title[c->currextra];
}
return "?";
}
int tagtree_get_attr(struct tree_context* c)
{
int attr = -1;
switch (c->currtable)
{
case NAVIBROWSE:
if (csi->tagorder[c->currextra] == tag_title)
attr = FILE_ATTR_AUDIO;
else
attr = ATTR_DIRECTORY;
break;
case ALLSUBENTRIES:
attr = FILE_ATTR_AUDIO;
break;
default:
attr = ATTR_DIRECTORY;
break;
}
return attr;
}
int tagtree_get_icon(struct tree_context* c)
{
int icon = Icon_Folder;
if (tagtree_get_attr(c) == FILE_ATTR_AUDIO)
icon = Icon_Audio;
return icon;
}
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