libDesktop
/* $Id$ */
/* Copyright (c) 2011-2022 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS libDesktop */
/* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fnmatch.h>
#include <errno.h>
#include <libintl.h>
#include <System.h>
#include "Desktop.h"
#include "mimehandler.h"
#include "../config.h"
/* constants */
#ifndef PREFIX
# define PREFIX "/usr/local"
#endif
#ifndef DATADIR
# define DATADIR PREFIX "/share"
#endif
/* Mime */
/* private */
/* types */
typedef struct _MimeType
{
char * type;
char ** globs;
size_t globs_cnt;
GdkPixbuf * icon_24;
GdkPixbuf * icon_48;
GdkPixbuf * icon_96;
} MimeType;
struct _Mime
{
GtkIconTheme * theme;
MimeType * types;
size_t types_cnt;
Config * config;
};
/* constants */
#define MIME_CONFIG_FILE ".mime"
/* prototypes */
static char * _mime_get_config_filename(void);
static GdkPixbuf * _mime_icons_size(Mime * mime, char const * type, int size);
/* public */
/* functions */
/* mime_new */
static void _new_config(Mime * mime);
Mime * mime_new(GtkIconTheme * theme)
{
Mime * mime;
char * globs2[] =
{
DATADIR "/mime/globs2",
"/usr/share/mime/globs2",
"/usr/local/share/mime/globs2",
"/usr/pkg/share/mime/globs2",
NULL
};
char * globs[] =
{
DATADIR "/mime/globs",
"/usr/share/mime/globs",
"/usr/local/share/mime/globs",
"/usr/pkg/share/mime/globs",
NULL
};
int priority = 1;
char ** g;
FILE * fp = NULL;
char buf[256];
size_t len;
char * p;
char * glob;
MimeType * type;
size_t i;
char ** q;
if((mime = object_new(sizeof(*mime))) == NULL)
return NULL;
if(theme == NULL)
theme = gtk_icon_theme_get_default();
mime->theme = theme;
for(g = globs2; *g != NULL; g++)
if((fp = fopen(*g, "r")) != NULL)
break;
if(fp == NULL)
for(g = globs, priority = 0; *g != NULL; g++)
if((fp = fopen(*g, "r")) != NULL)
break;
if(fp == NULL)
{
error_set_code(1, "%s", "Could not load MIME globs");
object_delete(mime);
return NULL;
}
mime->types = NULL;
mime->types_cnt = 0;
_new_config(mime);
while(fgets(buf, sizeof(buf), fp) != NULL)
{
errno = EINVAL;
len = strlen(buf);
if(buf[--len] != '\n')
break;
if(buf[0] == '#')
continue;
buf[len] = '\0';
if(priority)
{
/* parse the priority */
errno = 0;
strtoul(buf, &p, 0);
if(errno != 0 || *(p++) != ':')
continue;
}
else
p = buf;
glob = strchr(p, ':');
*(glob++) = '\0';
for(i = 0; i < mime->types_cnt; i++)
if(strcmp(mime->types[i].type, p) == 0)
break;
if(i < mime->types_cnt)
type = &mime->types[i];
else if((type = realloc(mime->types, sizeof(*type)
* (mime->types_cnt + 1)))
== NULL)
break;
else
{
mime->types = type;
type = &type[mime->types_cnt];
type->type = strdup(p);
type->globs = NULL;
type->globs_cnt = 0;
}
if((q = realloc(type->globs, sizeof(*type->globs)
* (type->globs_cnt + 1)))
!= NULL)
{
type->globs = q;
type->globs[type->globs_cnt] = strdup(glob);
}
if(type->type == NULL
|| type->globs == NULL
|| type->globs[type->globs_cnt] == NULL)
{
free(type->type);
free(type->globs);
break;
}
if(type->globs_cnt++ == 0)
mime->types_cnt++;
type->icon_24 = NULL;
type->icon_48 = NULL;
type->icon_96 = NULL;
#if 0
type->open = mime->config != NULL
? config_get(mime->config, p, "open") : NULL;
type->edit = mime->config != NULL
? config_get(mime->config, p, "edit") : NULL;
#endif
}
if(!feof(fp))
{
perror(*g);
mime_delete(mime);
mime = NULL;
}
fclose(fp);
return mime;
}
static void _new_config(Mime * mime)
{
char * filename;
if((mime->config = config_new()) == NULL)
return;
if((filename = _mime_get_config_filename()) == NULL)
return;
config_load(mime->config, filename);
string_delete(filename);
}
/* mime_delete */
void mime_delete(Mime * mime)
{
size_t i;
size_t j;
for(i = 0; i < mime->types_cnt; i++)
{
free(mime->types[i].type);
for(j = 0; j < mime->types[i].globs_cnt; j++)
free(mime->types[i].globs[j]);
free(mime->types[i].globs);
if(mime->types[i].icon_24 != NULL)
g_object_unref(mime->types[i].icon_24);
if(mime->types[i].icon_48 != NULL)
g_object_unref(mime->types[i].icon_48);
if(mime->types[i].icon_96 != NULL)
g_object_unref(mime->types[i].icon_96);
}
free(mime->types);
if(mime->config != NULL)
config_delete(mime->config);
object_delete(mime);
}
/* accessors */
/* mime_get_handler */
static MimeHandler * _get_handler_executable(char const * type,
char const * program);
MimeHandler * mime_get_handler(Mime * mime, char const * type,
char const * action)
{
MimeHandler * handler;
String const * program;
String * p;
String * q;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\")\n", __func__, type, action);
#endif
if(type == NULL || action == NULL)
{
error_set_code(-EINVAL, "%s", strerror(EINVAL));
return NULL;
}
if((program = config_get(mime->config, type, action)) != NULL)
{
if(program[0] == '/')
/* open with a specific executable */
return _get_handler_executable(type, program);
if((handler = mimehandler_new_load_by_name(program)) != NULL)
return handler;
}
/* generic fallback */
if((p = string_find(type, "/")) == NULL || *(++p) == '\0'
|| (p = string_new(type)) == NULL)
/* XXX the error may not be reported */
return NULL;
q = string_find(p, "/");
q[1] = '*';
q[2] = '\0';
program = config_get(mime->config, p, action);
string_delete(p);
if(program == NULL)
return NULL;
if(program[0] == '/')
/* open with a specific executable */
return _get_handler_executable(type, program);
return mimehandler_new_load_by_name(program);
}
static MimeHandler * _get_handler_executable(char const * type,
char const * program)
{
MimeHandler * handler;
String * p;
if((handler = mimehandler_new()) == NULL)
return NULL;
if((p = string_new_append(program, " %f", NULL)) == NULL
|| mimehandler_set(handler, "Type", "Application") != 0
|| mimehandler_set(handler, "Name", program) != 0
|| mimehandler_set(handler, "MimeType", type) != 0
|| mimehandler_set(handler, "Exec", p) != 0)
{
string_delete(p);
mimehandler_delete(handler);
return NULL;
}
string_delete(p);
return handler;
}
/* mime_set_handler */
int mime_set_handler(Mime * mime, char const * type, char const * action,
char const * handler)
{
if(handler != NULL && strcmp(handler, "") == 0)
handler = NULL;
return config_set(mime->config, type, action, handler);
}
/* useful */
/* mime_type */
char const * mime_type(Mime * mime, char const * path)
{
char const * p;
size_t i;
size_t j;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, path);
#endif
p = strrchr(path, '/');
p = (p != NULL) ? p + 1 : path;
for(i = 0; i < mime->types_cnt; i++)
{
for(j = 0; j < mime->types[i].globs_cnt; j++)
if(fnmatch(mime->types[i].globs[j], p, FNM_NOESCAPE)
== 0)
break;
if(j < mime->types[i].globs_cnt)
break;
}
#ifdef FNM_CASEFOLD
if(i < mime->types_cnt)
return mime->types[i].type;
for(i = 0; i < mime->types_cnt; i++)
for(j = 0; j < mime->types[i].globs_cnt; j++)
if(fnmatch(mime->types[i].globs[j], p,
FNM_NOESCAPE | FNM_CASEFOLD)
== 0)
return mime->types[i].type;
#endif
return NULL;
}
/* mime_action */
int mime_action(Mime * mime, char const * action, char const * path)
{
char const * type;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\")\n", __func__, action, path);
#endif
if((type = mime_type(mime, path)) == NULL)
return 1;
return mime_action_type(mime, action, path, type);
}
/* mime_action_type */
int mime_action_type(Mime * mime, char const * action, char const * path,
char const * type)
{
int ret;
MimeHandler * handler;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\", \"%s\")\n", __func__, action,
path, type);
#endif
if((handler = mime_get_handler(mime, type, action)) == NULL)
return -1;
ret = mimehandler_open(handler, path);
mimehandler_delete(handler);
return ret;
}
/* mime_foreach */
void mime_foreach(Mime * mime, MimeForeachCallback callback, void * data)
{
size_t i;
for(i = 0; i < mime->types_cnt; i++)
{
if(mime->types[i].icon_24 == NULL)
mime->types[i].icon_24 = _mime_icons_size(mime,
mime->types[i].type, 24);
if(mime->types[i].icon_48 == NULL)
mime->types[i].icon_48 = _mime_icons_size(mime,
mime->types[i].type, 48);
if(mime->types[i].icon_96 == NULL)
mime->types[i].icon_96 = _mime_icons_size(mime,
mime->types[i].type, 96);
callback(data, mime->types[i].type, mime->types[i].icon_24,
mime->types[i].icon_48, mime->types[i].icon_96);
}
}
/* mime_icons */
void mime_icons(Mime * mime, char const * type, ...)
{
size_t i;
va_list arg;
int size;
GdkPixbuf ** icon;
if(type == NULL)
i = mime->types_cnt;
else
for(i = 0; i < mime->types_cnt; i++)
if(strcmp(type, mime->types[i].type) == 0)
break;
va_start(arg, type);
while((size = va_arg(arg, int)) > 0)
{
icon = va_arg(arg, GdkPixbuf **);
if(i >= mime->types_cnt)
*icon = _mime_icons_size(mime, type, size);
else if(size == 24)
{
if(mime->types[i].icon_24 == NULL)
mime->types[i].icon_24 = _mime_icons_size(mime,
type, size);
*icon = mime->types[i].icon_24;
g_object_ref(*icon);
}
else if(size == 48)
{
if(mime->types[i].icon_48 == NULL)
mime->types[i].icon_48 = _mime_icons_size(mime,
type, size);
*icon = mime->types[i].icon_48;
g_object_ref(*icon);
}
else if(size == 96)
{
if(mime->types[i].icon_96 == NULL)
mime->types[i].icon_96 = _mime_icons_size(mime,
type, size);
*icon = mime->types[i].icon_96;
g_object_ref(*icon);
}
else
*icon = _mime_icons_size(mime, type, size);
}
va_end(arg);
}
/* mime_save */
int mime_save(Mime * mime)
{
int ret;
char * filename;
if((filename = _mime_get_config_filename()) == NULL)
return -1;
ret = config_save(mime->config, filename);
string_delete(filename);
return ret;
}
/* private */
/* functions */
/* mime_get_config_filename */
static char * _mime_get_config_filename(void)
{
char const * homedir;
if((homedir = getenv("HOME")) == NULL
&& (homedir = g_get_home_dir()) == NULL)
return NULL; /* XXX set error */
return string_new_append(homedir, "/", MIME_CONFIG_FILE, NULL);
}
/* mime_icons_size */
static GdkPixbuf * _icons_size_fallback_file(Mime * mime, int size, int flags);
static GdkPixbuf * _icons_size_fallback_folder(Mime * mime, int size,
int flags);
static GdkPixbuf * _mime_icons_size(Mime * mime, char const * type, int size)
{
GdkPixbuf * ret;
static char buf[256] = "gnome-mime-";
char * p;
GtkIconLookupFlags flags = GTK_ICON_LOOKUP_USE_BUILTIN
#if GTK_CHECK_VERSION(2, 12, 0)
| GTK_ICON_LOOKUP_GENERIC_FALLBACK
#endif
;
char const mountpoint[] = "inode/mountpoint";
char const folder[] = "inode/directory";
if(type == NULL)
return _icons_size_fallback_file(mime, size, flags);
/* check if it is a mountpoint */
if(strcmp(type, mountpoint) == 0)
{
if((ret = gtk_icon_theme_load_icon(mime->theme, "mount-point",
size, flags, NULL)) != NULL)
return ret;
/* fallback to a folder icon */
return _icons_size_fallback_folder(mime, size, flags);
}
/* check if it is a folder */
if(strcmp(type, folder) == 0)
return _icons_size_fallback_folder(mime, size, flags);
/* try to guess an icon */
strncpy(&buf[11], type, sizeof(buf) - 11);
buf[sizeof(buf) - 1] = '\0';
for(; (p = strchr(&buf[11], '/')) != NULL; *p = '-');
if((ret = gtk_icon_theme_load_icon(mime->theme, buf, size,
flags, NULL)) != NULL)
return ret;
return _icons_size_fallback_file(mime, size, flags);
}
static GdkPixbuf * _icons_size_fallback_file(Mime * mime, int size, int flags)
{
GdkPixbuf * ret;
char const * fallbacks[] =
{
"gnome-fs-regular",
#if GTK_CHECK_VERSION(2, 6, 0)
GTK_STOCK_FILE,
#endif
GTK_STOCK_MISSING_IMAGE
};
size_t i;
/* fallback to a regular icon */
for(i = 0; i < sizeof(fallbacks) / sizeof(*fallbacks); i++)
if((ret = gtk_icon_theme_load_icon(mime->theme, fallbacks[i],
size, flags, NULL)) != NULL)
return ret;
return NULL;
}
static GdkPixbuf * _icons_size_fallback_folder(Mime * mime, int size, int flags)
{
GdkPixbuf * ret;
char const * fallbacks[] =
{
"gnome-fs-directory",
#if GTK_CHECK_VERSION(2, 6, 0)
GTK_STOCK_DIRECTORY,
#endif
GTK_STOCK_MISSING_IMAGE
};
size_t i;
/* fallback to a folder icon */
for(i = 0; i < sizeof(fallbacks) / sizeof(*fallbacks); i++)
if((ret = gtk_icon_theme_load_icon(mime->theme, fallbacks[i],
size, flags, NULL)) != NULL)
return ret;
/* fallback to a regular icon */
return _icons_size_fallback_file(mime, size, flags);
}