From fb00c2190bab443812581473032156eb1e804c30 Mon Sep 17 00:00:00 2001 From: Björn Stenberg Date: Fri, 21 May 2004 20:08:24 +0000 Subject: Plugin/file type association system. Patch #879411 by Henrik Backe git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4677 a1c6a512-1295-4272-9138-f99709370657 --- apps/filetypes.c | 688 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 688 insertions(+) create mode 100644 apps/filetypes.c (limited to 'apps/filetypes.c') diff --git a/apps/filetypes.c b/apps/filetypes.c new file mode 100644 index 0000000000..f7eb33b74a --- /dev/null +++ b/apps/filetypes.c @@ -0,0 +1,688 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * + * $Id$ + * + * Copyright (C) 2004 Henrik Backe + * + * 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 +#include +#include +#include + +#include "sprintf.h" +#include "settings.h" +#include "debug.h" +#include "lang.h" +#include "language.h" +#include "kernel.h" +#include "plugin.h" +#include "filetypes.h" +#include "screens.h" +#include "icons.h" +#include "dir.h" +#include "file.h" +#include "icons.h" + +/* max plugin name size without extensions and path */ +#define MAX_PLUGIN_LENGTH 32 + +/* max filetypes (plugins & icons stored here) */ +#define MAX_FILETYPES 32 + +/* max exttypes (extensions stored here) */ +#define MAX_EXTTYPES 32 + +/* string buffer length */ +#define STRING_BUFFER_SIZE 256 + +/* number of bytes for the binary icon */ +#define ICON_LENGTH 6 + +/* mask for dynamic filetype info in attribute */ +#define FILETYPES_MASK 0xFF00 + +/* filenames */ +#define ROCK_EXTENSION ".rock" +#define VIEWERS_CONFIG ROCKBOX_DIR "/viewers.config" +#define VIEWERS_DIR ROCKBOX_DIR "/viewers" + +/* global variables */ +static int cnt_filetypes; +static int cnt_exttypes; +static struct ext_type exttypes [MAX_EXTTYPES]; +static struct file_type filetypes[MAX_FILETYPES]; +static int first_soft_exttype; +static int first_soft_filetype; +static char* next_free_string; +static char plugin_name[sizeof(VIEWERS_DIR) + 7 + MAX_PLUGIN_LENGTH]; +static char string_buffer[STRING_BUFFER_SIZE]; + +/* prototypes */ +#ifdef HAVE_LCD_BITMAP +static char* string2icon(char*); +#endif +static char* get_string(char*); +static int find_attr_index(int); +static bool read_config(char*); +static void rm_whitespaces(char*); +static void scan_plugins(void); + +/* initialize dynamic filetypes (called at boot from tree.c) */ +void filetype_init(void) +{ + int cnt,i,ix; + struct filetype* ftypes; + + memset(exttypes,0,sizeof(exttypes)); + memset(filetypes,0,sizeof(filetypes)); + next_free_string=string_buffer; + +/* The special filetype folder must always be stored at index 0 */ +#ifdef HAVE_LCD_BITMAP + if (!filetypes[0].icon) + filetypes[0].icon = bitmap_icons_6x8[Folder]; +#else + if (!filetypes[0].icon) + filetypes[0].icon = Folder; + for (i=1; i < MAX_FILETYPES; i++) + filetypes[i].icon = -1; +#endif + + /* register hardcoded filetypes */ + tree_get_filetypes(&ftypes, &cnt); + cnt_exttypes=0; + cnt_filetypes=0; + + for (i = 0; i < cnt ; i++) + { + ix = ((ftypes[i].tree_attr & FILETYPES_MASK) >> 8); + if (ix < MAX_FILETYPES && i < MAX_EXTTYPES) + { +#ifdef HAVE_LCD_BITMAP + if (filetypes[ix].icon == NULL) + filetypes[ix].icon=bitmap_icons_6x8[ftypes[i].icon]; +#else + if (filetypes[ix].icon == -1) + filetypes[ix].icon=ftypes[i].icon; +#endif + if (ix > cnt_filetypes) + cnt_filetypes=ix; + exttypes[cnt_exttypes].type=&filetypes[ix]; + exttypes[cnt_exttypes].extension=ftypes[i].extension; + cnt_exttypes++; + } + } + first_soft_exttype=cnt_exttypes; + cnt_filetypes++; + first_soft_filetype=cnt_filetypes; + + /* register dynamic filetypes */ + read_config(VIEWERS_CONFIG); + scan_plugins(); +} + +/* get icon */ +#ifdef HAVE_LCD_BITMAP +char* filetype_get_icon(int attr) +#else +int filetype_get_icon(int attr) +#endif +{ + int ix; + + ix = find_attr_index(attr); + + if (ix < 0) + { +#ifdef HAVE_LCD_BITMAP + return NULL; +#else + return -1; +#endif + } + else + { + return filetypes[ix].icon; + } +} + +/* get plugin */ +char* filetype_get_plugin(struct entry* file) +{ + int ix; + + ix=find_attr_index(file->attr); + + if (ix < 0) + { + return NULL; + } + + if ((filetypes[ix].plugin == NULL) || + (strlen(filetypes[ix].plugin) > MAX_PLUGIN_LENGTH)) + return NULL; + + snprintf(plugin_name, sizeof(plugin_name), + VIEWERS_DIR "/%s.rock",filetypes[ix].plugin); + + return plugin_name; +} + +/* check if filetype is supported */ +bool filetype_supported(int attr) +{ + int ix; + + ix=find_attr_index(attr); + + /* hard filetypes and soft filetypes with plugins is supported */ + if (ix > 0) + if (filetypes[ix].plugin || ix < first_soft_filetype) + return true; + + return false; +} + +/* get the "dynamic" attribute for an extension */ +int filetype_get_attr(char* name) +{ + int i; + + for (i=0; i < cnt_exttypes; i++) + { + if (exttypes[i].extension) + { + if (!strcasecmp(&name[strlen(name)- + strlen(exttypes[i].extension)], + exttypes[i].extension)) + { + return ((((unsigned int)exttypes[i].type - + (unsigned int)&filetypes[0]) / + sizeof(struct file_type)) << 8); + } + } + } + + return 0; +} + +/* fill a menu list with viewers (used in onplay.c) */ +int filetype_load_menu(struct menu_item* menu,int max_items) +{ + int i; + int cnt=0; + char* dash; + + for (i=0; i < cnt_filetypes; i++) + { + if (filetypes[i].plugin) + { + menu[cnt].desc = filetypes[i].plugin; + cnt++; + if (cnt == max_items) + break; + } + } + return cnt; +} + +/* start a plugin with an argument (called from onplay.c) */ +void filetype_load_plugin(char* plugin, char* file) +{ + snprintf(plugin_name,sizeof(plugin_name),"%s/%s.rock", + VIEWERS_DIR,plugin); + plugin_load(plugin_name,file); +} + +/* get index to filetypes[] from the file attribute */ +static int find_attr_index(int attr) +{ + int ix; + ix = ((attr & FILETYPES_MASK) >> 8); + + if ((attr & ATTR_DIRECTORY)==ATTR_DIRECTORY) + { + ix=0; + } + else + { + if (ix==0) + ix=-1; + if (ix > cnt_filetypes) + ix=-1; + else + if ((filetypes[ix].plugin == NULL) && +#ifdef HAVE_LCD_BITMAP + (filetypes[ix].icon == NULL) +#else + (filetypes[ix].icon == -1) +#endif + ) + ix=-1; + } + + return ix; +} + +/* scan the plugin directory and register filetypes */ +static void scan_plugins(void) +{ + DIR *dir; + struct dirent *entry; + char* cp; + char* dot; + char* dash; + int ix; + int i; + bool found; + + dir = opendir(VIEWERS_DIR); + if(!dir) + return; + + while (true) + { + /* exttypes[] full, bail out */ + if (cnt_exttypes >= MAX_EXTTYPES) + { + splash(HZ,true,str(LANG_FILETYPES_EXTENSION_FULL)); + break; + } + + /* filetypes[] full, bail out */ + if (cnt_filetypes >= MAX_FILETYPES) + { + splash(HZ,true,str(LANG_FILETYPES_FULL)); + break; + } + + entry = readdir(dir); + + if (!entry) + break; + + /* skip directories */ + if ((entry->attribute & ATTR_DIRECTORY)) + continue; + + /* Skip FAT volume ID */ + if (entry->attribute & ATTR_VOLUME_ID) + continue; + + /* filter out dotfiles and hidden files */ + if ((entry->d_name[0]=='.') || + (entry->attribute & ATTR_HIDDEN)) { + continue; + } + + /* filter out non rock files */ + if (!strcasecmp( + &entry->d_name[strlen(entry->d_name) - sizeof(ROCK_EXTENSION) -1], + ROCK_EXTENSION)) { + continue; + } + + /* filter out to long filenames */ + if (strlen(entry->d_name) > MAX_PLUGIN_LENGTH + 5) + { + splash(HZ,true,str(LANG_FILETYPES_PLUGIN_NAME_LONG)); + continue; + } + + dot=strrchr(entry->d_name,'.'); + *dot='\0'; + dash=strchr(entry->d_name,'-'); + + /* add plugin and extension */ + if (dash) + { + *dash='\0'; + ix=(filetype_get_attr(entry->d_name) >> 8); + if (!ix) + { + cp=get_string(entry->d_name); + if (cp) + { + exttypes[cnt_exttypes].extension=cp; + exttypes[cnt_exttypes].type=&filetypes[cnt_filetypes]; +#ifdef HAVE_LCD_BITMAP + exttypes[cnt_exttypes].type->icon = bitmap_icons_6x8[Plugin]; +#else + exttypes[cnt_exttypes].type->icon = Plugin; +#endif + cnt_exttypes++; + + *dash='-'; + cp=get_string(entry->d_name); + if (cp) + { + filetypes[cnt_filetypes].plugin=cp; + cnt_filetypes++; + } + else + break; + } + else + break; + } + else + { + *dash='-'; + if (!filetypes[ix].plugin) + { + cp=get_string(entry->d_name); + if (cp) + { + filetypes[cnt_filetypes].plugin=cp; + cnt_filetypes++; + } + else + break; + } + } + *dash='-'; + } + /* add plugin only */ + else + { + found=false; + for (i = first_soft_filetype; i < cnt_filetypes; i++) + { + if (filetypes[i].plugin) + if (!strcasecmp(filetypes[i].plugin,entry->d_name)) + { + found=true; + break; + } + } + + if (!found) + { + cp=get_string(entry->d_name); + if (cp) + { + filetypes[cnt_filetypes].plugin=cp; + filetypes[cnt_filetypes].no_extension=true; + cnt_filetypes++; + } + else + break; + } + } + *dot='.'; + } + closedir(dir); +} + +/* read config file (or cahe file) */ +bool read_config(char* file) +{ + enum {extension, + plugin, +#ifdef HAVE_LCD_BITMAP + icon, +#endif + last}; + + int i; + int fd; + char* end; + char* cp; + char* str[last]; + char buf[80]; + + fd = open(file, O_RDONLY); + if (fd < 0) + return false; + + while (read_line(fd, buf, sizeof(buf))) + { + if (cnt_exttypes >= MAX_EXTTYPES) + { + splash(HZ,true,str(LANG_FILETYPES_EXTENSION_FULL)); + break; + } + + if (cnt_filetypes >= MAX_FILETYPES) + { + splash(HZ,true,str(LANG_FILETYPES_FULL)); + break; + } + + /* parse buffer */ + rm_whitespaces(buf); + + if (strlen(buf) == 0) + continue; + + if (buf[0] == '#') + continue; + + memset(str,0,sizeof(str)); + i=0; + cp=buf; + while (*cp==',') { + cp++; + i++; + } + str[i] = strtok_r(cp, ",", &end); + i++; + + while (end && i < last) + { + if (end) + { + cp=end; + while (*cp==',') { + cp++; + i++; + } + } + str[i] = strtok_r(NULL, ",", &end); + i++; + } + + /* bail out if no icon and no plugin */ + if ((!str[plugin] || !strlen(str[plugin])) && +#ifdef HAVE_LCD_BITMAP + (!str[icon] || !strlen(str[icon])) && +#endif + strlen(str[extension])) + continue; + + /* bail out if no plugin and icon is incorrect*/ + if ((!str[plugin] || !strlen(str[plugin])) && +#ifdef HAVE_LCD_BITMAP + (strlen(str[icon]) != ICON_LENGTH*2) && +#endif + strlen(str[extension])) + continue; + + /* bail out if no icon and no plugin and no extension*/ + if ((!str[plugin] || !strlen(str[plugin])) && +#ifdef HAVE_LCD_BITMAP + (!str[icon] || !strlen(str[icon])) && +#endif + (!str[extension] || !strlen(str[extension]))) + continue; + + /* add extension */ + if (str[extension]) + { + if (strlen(str[extension])) + { + cp=get_string(str[extension]); + if (cp) + { + exttypes[cnt_exttypes].type = &filetypes[cnt_filetypes]; + exttypes[cnt_exttypes].extension = cp; + cnt_exttypes++; + } + else + break; + +#ifdef HAVE_LCD_BITMAP + /* add icon */ + if (str[icon]) + { + cp = string2icon(str[icon]); + if (cp) + filetypes[cnt_filetypes].icon = cp; + else + break; + } +#endif + } + } + + /* are we able to start plugin from onplay.c ?*/ + if (str[plugin]) + { + if (strlen(str[plugin]) > MAX_PLUGIN_LENGTH) + { + splash(HZ, true, str(LANG_FILETYPES_PLUGIN_NAME_LONG)); + str[plugin] = NULL; + } + } + + /* add plugin */ + if (str[plugin]) + { + if (strlen(str[plugin])) + { + cp=strrchr(str[plugin], '.'); + if (cp) + *cp='\0'; + + cp = get_string(str[plugin]); + if (cp) + filetypes[cnt_filetypes].plugin = cp; + else + break; + } + } + + if (filetypes[cnt_filetypes].plugin) + cnt_filetypes++; + } + close(fd); + + return true; +} + +#ifdef HAVE_LCD_BITMAP +/* convert an ascii hexadecimal icon to a binary icon */ +static char* string2icon(char* str) +{ + char tmp[ICON_LENGTH*2]; + char *cp; + int i; + + if (strlen(str)!=ICON_LENGTH*2) + return NULL; + + if ((sizeof(string_buffer) + + (unsigned int) string_buffer - + (unsigned int) next_free_string) < ICON_LENGTH) + { + splash(HZ,true,str(LANG_FILETYPES_STRING_BUFFER_EMPTY)); + return NULL; + } + + for (i=0; i<12; i++) + { + if (str[i] >= '0' && str[i] <= '9') + { + tmp[i]=str[i]-'0'; + continue; + } + + if (str[i] >= 'a' && str[i] <= 'f') + { + tmp[i]=str[i]-'a'+10; + continue; + } + + if (str[i] >= 'A' && str[i] <= 'F') + { + tmp[i]=str[i]-'A'+10; + continue; + } + + return NULL; + } + + cp=next_free_string; + for (i = 0; i < ICON_LENGTH; i++) + cp[i]=((tmp[i*2]<<4) | tmp[i*2+1]); + + next_free_string=&next_free_string[ICON_LENGTH]; + return cp; +} +#endif + +/* get string from buffer */ +static char* get_string(char* str) +{ + unsigned int l=strlen(str)+1; + char* cp; + + if (!str) + return NULL; + + if (l <= (sizeof(string_buffer) + + (unsigned int) string_buffer - + (unsigned int) next_free_string)) + { + strcpy(next_free_string,str); + cp=next_free_string; + next_free_string=&next_free_string[l]; + return cp; + } + else + { + splash(HZ,true,str(LANG_FILETYPES_STRING_BUFFER_EMPTY)); + return NULL; + } +} + +/* remove all white spaces from string */ +static void rm_whitespaces(char* str) +{ + char *cp, *free; + + cp=str; + free=cp; + + while (cp < &str[strlen(str)]) + { + switch (*cp) + { + case ' ' : + case '\t' : + case '\r' : + break; + + default: + *free=*cp; + free++; + break; + } + cp++; + } + + *free='\0'; +} -- cgit v1.2.3