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rockbox/apps/bookmark.c
Magnus Holmgren 47167e7022 In the recent bookmarks list, show playlist/directory name, in addition to the file name. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15656 a1c6a512-1295-4272-9138-f99709370657
2007-11-18 12:59:08 +00:00

1084 lines
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C)2003 by Benjamin Metzler
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "applimits.h"
#include "lcd.h"
#include "action.h"
#include "usb.h"
#include "audio.h"
#include "playlist.h"
#include "settings.h"
#include "tree.h"
#include "bookmark.h"
#include "dir.h"
#include "status.h"
#include "system.h"
#include "errno.h"
#include "icons.h"
#include "atoi.h"
#include "string.h"
#include "menu.h"
#include "lang.h"
#include "screens.h"
#include "status.h"
#include "debug.h"
#include "kernel.h"
#include "sprintf.h"
#include "talk.h"
#include "misc.h"
#include "abrepeat.h"
#include "splash.h"
#include "yesno.h"
#include "list.h"
#include "plugin.h"
#if (LCD_DEPTH > 1) || (defined(HAVE_LCD_REMOTE) && (LCD_REMOTE_DEPTH > 1))
#include "backdrop.h"
#endif
#define MAX_BOOKMARKS 10
#define MAX_BOOKMARK_SIZE 350
#define RECENT_BOOKMARK_FILE ROCKBOX_DIR "/most-recent.bmark"
/* Used to buffer bookmarks while displaying the bookmark list. */
struct bookmark_list
{
const char* filename;
size_t buffer_size;
int start;
int count;
int total_count;
bool show_dont_resume;
bool reload;
bool show_playlist_name;
char* items[];
};
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
bool most_recent);
static bool check_bookmark(const char* bookmark);
static char* create_bookmark(void);
static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id);
static void say_bookmark(const char* bookmark,
int bookmark_id);
static bool play_bookmark(const char* bookmark);
static bool generate_bookmark_file_name(const char *in);
static const char* skip_token(const char* s);
static const char* int_token(const char* s, int* dest);
static const char* long_token(const char* s, long* dest);
static const char* bool_token(const char* s, bool* dest);
static bool parse_bookmark(const char *bookmark,
int *resume_index,
int *resume_offset,
int *resume_seed,
int *resume_first_index,
char* resume_file,
unsigned int resume_file_size,
long* ms,
int * repeat_mode,
bool *shuffle,
char* file_name);
static int buffer_bookmarks(struct bookmark_list* bookmarks, int first_line);
static char* get_bookmark_info(int list_index, void* data, char *buffer);
static char* select_bookmark(const char* bookmark_file_name, bool show_dont_resume);
static bool system_check(void);
static bool write_bookmark(bool create_bookmark_file);
static int get_bookmark_count(const char* bookmark_file_name);
static char global_temp_buffer[MAX_PATH+1];
/* File name created by generate_bookmark_file_name */
static char global_bookmark_file_name[MAX_PATH];
static char global_read_buffer[MAX_BOOKMARK_SIZE];
/* Bookmark created by create_bookmark*/
static char global_bookmark[MAX_BOOKMARK_SIZE];
/* Filename from parsed bookmark (can be made local where needed) */
static char global_filename[MAX_PATH];
/* ----------------------------------------------------------------------- */
/* This is the interface function from the main menu. */
/* ----------------------------------------------------------------------- */
bool bookmark_create_menu(void)
{
write_bookmark(true);
return false;
}
/* ----------------------------------------------------------------------- */
/* This function acts as the load interface from the main menu */
/* This function determines the bookmark file name and then loads that file*/
/* for the user. The user can then select a bookmark to load. */
/* If no file/directory is currently playing, the menu item does not work. */
/* ----------------------------------------------------------------------- */
bool bookmark_load_menu(void)
{
if (system_check())
{
char* name = playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
char* bookmark = select_bookmark(global_bookmark_file_name, false);
if (bookmark != NULL)
{
return play_bookmark(bookmark);
}
}
}
return false;
}
/* ----------------------------------------------------------------------- */
/* Gives the user a list of the Most Recent Bookmarks. This is an */
/* interface function */
/* ----------------------------------------------------------------------- */
bool bookmark_mrb_load()
{
char* bookmark = select_bookmark(RECENT_BOOKMARK_FILE, false);
if (bookmark != NULL)
{
return play_bookmark(bookmark);
}
return false;
}
/* ----------------------------------------------------------------------- */
/* This function handles an autobookmark creation. This is an interface */
/* function. */
/* ----------------------------------------------------------------------- */
bool bookmark_autobookmark(void)
{
if (!system_check())
return false;
audio_pause(); /* first pause playback */
switch (global_settings.autocreatebookmark)
{
case BOOKMARK_YES:
return write_bookmark(true);
case BOOKMARK_NO:
return false;
case BOOKMARK_RECENT_ONLY_YES:
return write_bookmark(false);
}
#ifdef HAVE_LCD_BITMAP
unsigned char *lines[]={ID2P(LANG_AUTO_BOOKMARK_QUERY)};
struct text_message message={(char **)lines, 1};
#else
unsigned char *lines[]={ID2P(LANG_AUTO_BOOKMARK_QUERY),
str(LANG_CONFIRM_WITH_BUTTON)};
struct text_message message={(char **)lines, 2};
#endif
#if LCD_DEPTH > 1
show_main_backdrop(); /* switch to main backdrop as we may come from wps */
#endif
#if defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
show_remote_main_backdrop();
#endif
gui_syncstatusbar_draw(&statusbars, false);
if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
{
if (global_settings.autocreatebookmark == BOOKMARK_RECENT_ONLY_ASK)
return write_bookmark(false);
else
return write_bookmark(true);
}
return false;
}
/* ----------------------------------------------------------------------- */
/* This function takes the current current resume information and writes */
/* that to the beginning of the bookmark file. */
/* This file will contain N number of bookmarks in the following format: */
/* resume_index*resume_offset*resume_seed*resume_first_index* */
/* resume_file*milliseconds*MP3 Title* */
/* ------------------------------------------------------------------------*/
static bool write_bookmark(bool create_bookmark_file)
{
bool success=false;
char* bookmark;
if (!system_check())
return false; /* something didn't happen correctly, do nothing */
bookmark = create_bookmark();
if (!bookmark)
return false; /* something didn't happen correctly, do nothing */
if (global_settings.usemrb)
success = add_bookmark(RECENT_BOOKMARK_FILE, bookmark, true);
/* writing the bookmark */
if (create_bookmark_file)
{
char* name = playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
success = add_bookmark(global_bookmark_file_name, bookmark, false);
}
}
gui_syncsplash(HZ, success ? ID2P(LANG_BOOKMARK_CREATE_SUCCESS)
: ID2P(LANG_BOOKMARK_CREATE_FAILURE));
return true;
}
/* ----------------------------------------------------------------------- */
/* This function adds a bookmark to a file. */
/* ------------------------------------------------------------------------*/
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
bool most_recent)
{
int temp_bookmark_file = 0;
int bookmark_file = 0;
int bookmark_count = 0;
char* playlist = NULL;
char* cp;
char* tmp;
int len = 0;
bool unique = false;
/* Opening up a temp bookmark file */
snprintf(global_temp_buffer, sizeof(global_temp_buffer),
"%s.tmp", bookmark_file_name);
temp_bookmark_file = open(global_temp_buffer,
O_WRONLY | O_CREAT | O_TRUNC);
if (temp_bookmark_file < 0)
return false; /* can't open the temp file */
if (most_recent && (global_settings.usemrb == BOOKMARK_UNIQUE_ONLY))
{
playlist = strchr(bookmark,'/');
cp = strrchr(bookmark,';');
len = cp - playlist;
unique = true;
}
/* Writing the new bookmark to the begining of the temp file */
write(temp_bookmark_file, bookmark, strlen(bookmark));
write(temp_bookmark_file, "\n", 1);
bookmark_count++;
/* Reading in the previous bookmarks and writing them to the temp file */
bookmark_file = open(bookmark_file_name, O_RDONLY);
if (bookmark_file >= 0)
{
while (read_line(bookmark_file, global_read_buffer,
sizeof(global_read_buffer)) > 0)
{
/* The MRB has a max of MAX_BOOKMARKS in it */
/* This keeps it from getting too large */
if (most_recent && (bookmark_count >= MAX_BOOKMARKS))
break;
cp = strchr(global_read_buffer,'/');
tmp = strrchr(global_read_buffer,';');
if (check_bookmark(global_read_buffer) &&
(!unique || len != tmp -cp || strncmp(playlist,cp,len)))
{
bookmark_count++;
write(temp_bookmark_file, global_read_buffer,
strlen(global_read_buffer));
write(temp_bookmark_file, "\n", 1);
}
}
close(bookmark_file);
}
close(temp_bookmark_file);
remove(bookmark_file_name);
rename(global_temp_buffer, bookmark_file_name);
return true;
}
/* ----------------------------------------------------------------------- */
/* This function takes the system resume data and formats it into a valid */
/* bookmark. */
/* ----------------------------------------------------------------------- */
static char* create_bookmark()
{
int resume_index = 0;
char *file;
/* grab the currently playing track */
struct mp3entry *id3 = audio_current_track();
if(!id3)
return NULL;
/* Get some basic resume information */
/* queue_resume and queue_resume_index are not used and can be ignored.*/
playlist_get_resume_info(&resume_index);
/* Get the currently playing file minus the path */
/* This is used when displaying the available bookmarks */
file = strrchr(id3->path,'/');
if(NULL == file)
return NULL;
/* create the bookmark */
snprintf(global_bookmark, sizeof(global_bookmark),
"%d;%ld;%d;%d;%ld;%d;%d;%s;%s",
resume_index,
id3->offset,
playlist_get_seed(NULL),
0,
id3->elapsed,
global_settings.repeat_mode,
global_settings.playlist_shuffle,
playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer)),
file+1);
/* checking to see if the bookmark is valid */
if (check_bookmark(global_bookmark))
return global_bookmark;
else
return NULL;
}
static bool check_bookmark(const char* bookmark)
{
return parse_bookmark(bookmark,
NULL,NULL,NULL, NULL,
NULL,0,NULL,NULL,
NULL, NULL);
}
/* ----------------------------------------------------------------------- */
/* This function will determine if an autoload is necessary. This is an */
/* interface function. */
/* ------------------------------------------------------------------------*/
bool bookmark_autoload(const char* file)
{
int fd;
if(global_settings.autoloadbookmark == BOOKMARK_NO)
return false;
/*Checking to see if a bookmark file exists.*/
if(!generate_bookmark_file_name(file))
{
return false;
}
fd = open(global_bookmark_file_name, O_RDONLY);
if(fd<0)
return false;
close(fd);
if(global_settings.autoloadbookmark == BOOKMARK_YES)
{
return bookmark_load(global_bookmark_file_name, true);
}
else
{
char* bookmark = select_bookmark(global_bookmark_file_name, true);
if (bookmark != NULL)
{
return play_bookmark(bookmark);
}
return false;
}
}
/* ----------------------------------------------------------------------- */
/* This function loads the bookmark information into the resume memory. */
/* This is an interface function. */
/* ------------------------------------------------------------------------*/
bool bookmark_load(const char* file, bool autoload)
{
int fd;
char* bookmark = NULL;;
if(autoload)
{
fd = open(file, O_RDONLY);
if(fd >= 0)
{
if(read_line(fd, global_read_buffer, sizeof(global_read_buffer)) > 0)
bookmark=global_read_buffer;
close(fd);
}
}
else
{
/* This is not an auto-load, so list the bookmarks */
bookmark = select_bookmark(file, false);
}
if (bookmark != NULL)
{
return play_bookmark(bookmark);
}
return true;
}
static int get_bookmark_count(const char* bookmark_file_name)
{
int read_count = 0;
int file = open(bookmark_file_name, O_RDONLY);
if(file < 0)
return -1;
while(read_line(file, global_read_buffer, sizeof(global_read_buffer)) > 0)
{
read_count++;
}
close(file);
return read_count;
}
static int buffer_bookmarks(struct bookmark_list* bookmarks, int first_line)
{
char* dest = ((char*) bookmarks) + bookmarks->buffer_size - 1;
int read_count = 0;
int file = open(bookmarks->filename, O_RDONLY);
if (file < 0)
{
return -1;
}
if ((first_line != 0) && ((size_t) filesize(file) < bookmarks->buffer_size
- sizeof(*bookmarks) - (sizeof(char*) * bookmarks->total_count)))
{
/* Entire file fits in buffer */
first_line = 0;
}
bookmarks->start = first_line;
bookmarks->count = 0;
bookmarks->reload = false;
while(read_line(file, global_read_buffer, sizeof(global_read_buffer)) > 0)
{
read_count++;
if (read_count >= first_line)
{
dest -= strlen(global_read_buffer) + 1;
if (dest < ((char*) bookmarks) + sizeof(*bookmarks)
+ (sizeof(char*) * (bookmarks->count + 1)))
{
break;
}
strcpy(dest, global_read_buffer);
bookmarks->items[bookmarks->count] = dest;
bookmarks->count++;
}
}
close(file);
return bookmarks->start + bookmarks->count;
}
static char* strrsplt(char* str, int c)
{
char* s = strrchr(str, c);
if (s != NULL)
{
*s++ = '\0';
}
else
{
s = str;
}
return s;
}
static char* get_bookmark_info(int list_index, void* data, char *buffer)
{
struct bookmark_list* bookmarks = (struct bookmark_list*) data;
int index = list_index / 2;
int resume_index = 0;
long resume_time = 0;
bool shuffle = false;
if (bookmarks->show_dont_resume)
{
if (index == 0)
{
return list_index % 2 == 0
? (char*) str(LANG_BOOKMARK_DONT_RESUME) : " ";
}
index--;
}
if (bookmarks->reload || (index >= bookmarks->start + bookmarks->count)
|| (index < bookmarks->start))
{
int read_index = index;
/* Using count as a guide on how far to move could possibly fail
* sometimes. Use byte count if that is a problem?
*/
if (read_index != 0)
{
/* Move count * 3 / 4 items in the direction the user is moving,
* but don't go too close to the end.
*/
int offset = bookmarks->count;
int max = bookmarks->total_count - (bookmarks->count / 2);
if (read_index < bookmarks->start)
{
offset *= 3;
}
read_index = index - offset / 4;
if (read_index > max)
{
read_index = max;
}
if (read_index < 0)
{
read_index = 0;
}
}
if (buffer_bookmarks(bookmarks, read_index) <= index)
{
return "";
}
}
if (!parse_bookmark(bookmarks->items[index - bookmarks->start],
&resume_index, NULL, NULL, NULL, global_temp_buffer,
sizeof(global_temp_buffer), &resume_time, NULL, &shuffle,
global_filename))
{
return list_index % 2 == 0 ? (char*) str(LANG_BOOKMARK_INVALID) : " ";
}
if (list_index % 2 == 0)
{
char *name;
char *format;
int len = strlen(global_temp_buffer);
if (bookmarks->show_playlist_name && len > 0)
{
name = global_temp_buffer;
len--;
if (name[len] != '/')
{
strrsplt(name, '.');
}
else if (len > 1)
{
name[len] = '\0';
}
if (len > 1)
{
name = strrsplt(name, '/');
}
format = "%s : %s";
}
else
{
name = global_filename;
format = "%s";
}
strrsplt(global_filename, '.');
snprintf(buffer, MAX_PATH, format, name, global_filename);
return buffer;
}
else
{
char time_buf[32];
format_time(time_buf, sizeof(time_buf), resume_time);
snprintf(buffer, MAX_PATH, "%s, %d%s", time_buf, resume_index + 1,
shuffle ? (char*) str(LANG_BOOKMARK_SHUFFLE) : "");
return buffer;
}
}
/* ----------------------------------------------------------------------- */
/* This displays a the bookmarks in a file and allows the user to */
/* select one to play. */
/* ------------------------------------------------------------------------*/
static char* select_bookmark(const char* bookmark_file_name, bool show_dont_resume)
{
struct bookmark_list* bookmarks;
struct gui_synclist list;
int last_item = -2;
int item = 0;
int action;
size_t size;
bool exit = false;
bool refresh = true;
bookmarks = plugin_get_buffer(&size);
bookmarks->buffer_size = size;
bookmarks->show_dont_resume = show_dont_resume;
bookmarks->filename = bookmark_file_name;
bookmarks->start = 0;
bookmarks->show_playlist_name
= strcmp(bookmark_file_name, RECENT_BOOKMARK_FILE) == 0;
gui_synclist_init(&list, &get_bookmark_info, (void*) bookmarks, false, 2);
gui_synclist_set_title(&list, str(LANG_BOOKMARK_SELECT_BOOKMARK),
Icon_Bookmark);
gui_syncstatusbar_draw(&statusbars, true);
while (!exit)
{
gui_syncstatusbar_draw(&statusbars, false);
if (refresh)
{
int count = get_bookmark_count(bookmark_file_name);
bookmarks->total_count = count;
if (bookmarks->total_count < 1)
{
/* No more bookmarks, delete file and exit */
gui_syncsplash(HZ, ID2P(LANG_BOOKMARK_LOAD_EMPTY));
remove(bookmark_file_name);
return NULL;
}
if (bookmarks->show_dont_resume)
{
count++;
item++;
}
gui_synclist_set_nb_items(&list, count * 2);
if (item >= count)
{
/* Selected item has been deleted */
item = count - 1;
gui_synclist_select_item(&list, item * 2);
}
buffer_bookmarks(bookmarks, bookmarks->start);
gui_synclist_draw(&list);
refresh = false;
}
action = get_action(CONTEXT_BOOKMARKSCREEN, HZ / 2);
gui_synclist_do_button(&list, &action, LIST_WRAP_UNLESS_HELD);
item = gui_synclist_get_sel_pos(&list) / 2;
if (bookmarks->show_dont_resume)
{
item--;
}
if (item != last_item && global_settings.talk_menu)
{
last_item = item;
if (item == -1)
{
talk_id(LANG_BOOKMARK_DONT_RESUME, true);
}
else
{
say_bookmark(bookmarks->items[item - bookmarks->start], item);
}
}
if (action == ACTION_STD_CONTEXT)
{
MENUITEM_STRINGLIST(menu_items, ID2P(LANG_BOOKMARK_CONTEXT_MENU),
NULL, ID2P(LANG_BOOKMARK_CONTEXT_RESUME),
ID2P(LANG_BOOKMARK_CONTEXT_DELETE));
static const int menu_actions[] =
{
ACTION_STD_OK, ACTION_BMS_DELETE
};
int selection = do_menu(&menu_items, NULL);
refresh = true;
if (selection >= 0 && selection <=
(int) (sizeof(menu_actions) / sizeof(menu_actions[0])))
{
action = menu_actions[selection];
}
}
switch (action)
{
case ACTION_STD_OK:
if (item >= 0)
{
return bookmarks->items[item - bookmarks->start];
}
/* Else fall through */
case ACTION_TREE_WPS:
case ACTION_STD_CANCEL:
exit = true;
break;
case ACTION_BMS_DELETE:
if (item >= 0)
{
delete_bookmark(bookmark_file_name, item);
bookmarks->reload = true;
refresh = true;
last_item = -2;
}
break;
default:
if (default_event_handler(action) == SYS_USB_CONNECTED)
{
exit = true;
}
break;
}
}
return NULL;
}
/* ----------------------------------------------------------------------- */
/* This function takes a location in a bookmark file and deletes that */
/* bookmark. */
/* ------------------------------------------------------------------------*/
static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id)
{
int temp_bookmark_file = 0;
int bookmark_file = 0;
int bookmark_count = 0;
/* Opening up a temp bookmark file */
snprintf(global_temp_buffer, sizeof(global_temp_buffer),
"%s.tmp", bookmark_file_name);
temp_bookmark_file = open(global_temp_buffer,
O_WRONLY | O_CREAT | O_TRUNC);
if (temp_bookmark_file < 0)
return false; /* can't open the temp file */
/* Reading in the previous bookmarks and writing them to the temp file */
bookmark_file = open(bookmark_file_name, O_RDONLY);
if (bookmark_file >= 0)
{
while (read_line(bookmark_file, global_read_buffer,
sizeof(global_read_buffer)) > 0)
{
if (bookmark_id != bookmark_count)
{
write(temp_bookmark_file, global_read_buffer,
strlen(global_read_buffer));
write(temp_bookmark_file, "\n", 1);
}
bookmark_count++;
}
close(bookmark_file);
}
close(temp_bookmark_file);
remove(bookmark_file_name);
rename(global_temp_buffer, bookmark_file_name);
return true;
}
/* ----------------------------------------------------------------------- */
/* This function parses a bookmark, says the voice UI part of it. */
/* ------------------------------------------------------------------------*/
static void say_bookmark(const char* bookmark,
int bookmark_id)
{
int resume_index;
long ms;
bool enqueue = false; /* only the first voice is not queued */
if (!parse_bookmark(bookmark, &resume_index, NULL, NULL, NULL,
global_temp_buffer, sizeof(global_temp_buffer), &ms, NULL, NULL, NULL))
{
talk_id(LANG_BOOKMARK_INVALID, true);
return;
}
/* disabled, because transition between talkbox and voice UI clip is not nice */
#if 0
if (global_settings.talk_dir >= 3)
{ /* "talkbox" enabled */
char* last = strrchr(global_temp_buffer, '/');
if (last)
{ /* compose filename for talkbox */
strncpy(last + 1, dir_thumbnail_name,
sizeof(global_temp_buffer) - (last - global_temp_buffer) - 1);
talk_file(global_temp_buffer, enqueue);
enqueue = true;
}
}
#endif
talk_id(VOICE_EXT_BMARK, enqueue);
talk_number(bookmark_id + 1, true);
talk_id(VOICE_BOOKMARK_SELECT_INDEX_TEXT, true);
talk_number(resume_index + 1, true);
talk_id(LANG_TIME, true);
if (ms / 60000)
talk_value(ms / 60000, UNIT_MIN, true);
talk_value((ms % 60000) / 1000, UNIT_SEC, true);
}
/* ----------------------------------------------------------------------- */
/* This function parses a bookmark and then plays it. */
/* ------------------------------------------------------------------------*/
static bool play_bookmark(const char* bookmark)
{
int index;
int offset;
int seed;
if (parse_bookmark(bookmark,
&index,
&offset,
&seed,
NULL,
global_temp_buffer,
sizeof(global_temp_buffer),
NULL,
&global_settings.repeat_mode,
&global_settings.playlist_shuffle,
global_filename))
{
bookmark_play(global_temp_buffer, index, offset, seed,
global_filename);
return true;
}
return false;
}
static const char* skip_token(const char* s)
{
while (*s && *s != ';')
{
s++;
}
if (*s)
{
s++;
}
return s;
}
static const char* int_token(const char* s, int* dest)
{
if (dest != NULL)
{
*dest = atoi(s);
}
return skip_token(s);
}
static const char* long_token(const char* s, long* dest)
{
if (dest != NULL)
{
*dest = atoi(s); /* Should be atol, but we don't have it. */
}
return skip_token(s);
}
static const char* bool_token(const char* s, bool* dest)
{
if (dest != NULL)
{
*dest = atoi(s) != 0;
}
return skip_token(s);
}
/* ----------------------------------------------------------------------- */
/* This function takes a bookmark and parses it. This function also */
/* validates the bookmark. Passing in NULL for an output variable */
/* indicates that value is not requested. */
/* ----------------------------------------------------------------------- */
static bool parse_bookmark(const char *bookmark,
int *resume_index,
int *resume_offset,
int *resume_seed,
int *resume_first_index,
char* resume_file,
unsigned int resume_file_size,
long* ms,
int * repeat_mode, bool *shuffle,
char* file_name)
{
const char* s = bookmark;
const char* end;
s = int_token(s, resume_index);
s = int_token(s, resume_offset);
s = int_token(s, resume_seed);
s = int_token(s, resume_first_index);
s = long_token(s, ms);
s = int_token(s, repeat_mode);
s = bool_token(s, shuffle);
if (*s == 0)
{
return false;
}
end = strchr(s, ';');
if (resume_file != NULL)
{
size_t len = (end == NULL) ? strlen(s) : (size_t) (end - s);
len = MIN(resume_file_size - 1, len);
strncpy(resume_file, s, len);
resume_file[len] = 0;
}
if (end != NULL && file_name != NULL)
{
end++;
strncpy(file_name, end, MAX_PATH - 1);
file_name[MAX_PATH - 1] = 0;
}
return true;
}
/* ----------------------------------------------------------------------- */
/* This function is used by multiple functions and is used to generate a */
/* bookmark named based off of the input. */
/* Changing this function could result in how the bookmarks are stored. */
/* it would be here that the centralized/decentralized bookmark code */
/* could be placed. */
/* ----------------------------------------------------------------------- */
static bool generate_bookmark_file_name(const char *in)
{
int len = strlen(in);
/* if this is a root dir MP3, rename the bookmark file root_dir.bmark */
/* otherwise, name it based on the in variable */
if (!strcmp("/", in))
strcpy(global_bookmark_file_name, "/root_dir.bmark");
else
{
strcpy(global_bookmark_file_name, in);
if(global_bookmark_file_name[len-1] == '/')
len--;
strcpy(&global_bookmark_file_name[len], ".bmark");
}
return true;
}
/* ----------------------------------------------------------------------- */
/* Returns true if a bookmark file exists for the current playlist */
/* ----------------------------------------------------------------------- */
bool bookmark_exist(void)
{
bool exist=false;
if(system_check())
{
char* name = playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
int fd=open(global_bookmark_file_name, O_RDONLY);
if (fd >=0)
{
close(fd);
exist=true;
}
}
}
return exist;
}
/* ----------------------------------------------------------------------- */
/* Checks the current state of the system and returns if it is in a */
/* bookmarkable state. */
/* ----------------------------------------------------------------------- */
/* Inputs: */
/* ----------------------------------------------------------------------- */
/* Outputs: */
/* return bool: Indicates if the system was in a bookmarkable state */
/* ----------------------------------------------------------------------- */
static bool system_check(void)
{
int resume_index = 0;
if (!(audio_status() && audio_current_track()))
{
/* no track playing */
return false;
}
/* Checking to see if playing a queued track */
if (playlist_get_resume_info(&resume_index) == -1)
{
/* something bad happened while getting the queue information */
return false;
}
else if (playlist_modified(NULL))
{
/* can't bookmark while in the queue */
return false;
}
return true;
}
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