528 lines
12 KiB
C
528 lines
12 KiB
C
/* $Id$ */
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/* Copyright (c) 2011-2017 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS libDesktop */
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/* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fnmatch.h>
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#include <errno.h>
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#include <libintl.h>
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#include <System.h>
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#include "Desktop.h"
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#include "../config.h"
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/* constants */
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#ifndef PREFIX
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# define PREFIX "/usr/local"
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#endif
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#ifndef DATADIR
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# define DATADIR PREFIX "/share"
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#endif
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/* Mime */
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/* private */
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/* types */
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typedef struct _MimeType
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{
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char * type;
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char ** globs;
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size_t globs_cnt;
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GdkPixbuf * icon_24;
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GdkPixbuf * icon_48;
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GdkPixbuf * icon_96;
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} MimeType;
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struct _Mime
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{
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GtkIconTheme * theme;
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MimeType * types;
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size_t types_cnt;
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Config * config;
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};
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/* constants */
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#define MIME_CONFIG_FILE ".mime"
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/* prototypes */
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static char * _mime_get_config_filename(void);
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static GdkPixbuf * _mime_icons_size(Mime * mime, char const * type, int size);
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/* public */
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/* functions */
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/* mime_new */
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static void _new_config(Mime * mime);
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Mime * mime_new(GtkIconTheme * theme)
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{
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Mime * mime;
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char * globs[] =
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{
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DATADIR "/mime/globs",
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"/usr/share/mime/globs",
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"/usr/local/share/mime/globs",
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"/usr/pkg/share/mime/globs",
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NULL
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};
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char ** g = globs;
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FILE * fp = NULL;
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char buf[256];
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size_t len;
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char * glob;
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MimeType * p;
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size_t i;
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char ** q;
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if((mime = object_new(sizeof(*mime))) == NULL)
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return NULL;
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if(theme == NULL)
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theme = gtk_icon_theme_get_default();
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mime->theme = theme;
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for(g = globs; *g != NULL; g++)
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if((fp = fopen(*g, "r")) != NULL)
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break;
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if(fp == NULL)
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{
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error_set_code(1, "%s", "Could not load MIME globs");
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object_delete(mime);
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return NULL;
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}
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mime->types = NULL;
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mime->types_cnt = 0;
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_new_config(mime);
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while(fgets(buf, sizeof(buf), fp) != NULL)
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{
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errno = EINVAL;
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len = strlen(buf);
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if(buf[--len] != '\n')
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break;
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if(buf[0] == '#')
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continue;
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buf[len] = '\0';
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glob = strchr(buf, ':');
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*(glob++) = '\0';
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for(i = 0; i < mime->types_cnt; i++)
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if(strcmp(mime->types[i].type, buf) == 0)
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break;
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if(i < mime->types_cnt)
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p = &mime->types[i];
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else if((p = realloc(mime->types, sizeof(*p) * (mime->types_cnt
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+ 1))) == NULL)
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break;
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else
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{
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mime->types = p;
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p = &p[mime->types_cnt];
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p->type = strdup(buf);
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p->globs = NULL;
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p->globs_cnt = 0;
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}
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if((q = realloc(p->globs, sizeof(*p->globs)
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* (p->globs_cnt + 1))) != NULL)
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{
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p->globs = q;
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p->globs[p->globs_cnt] = strdup(glob);
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}
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if(p->type == NULL || p->globs == NULL
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|| p->globs[p->globs_cnt] == NULL)
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{
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free(p->type);
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free(p->globs);
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break;
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}
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if(p->globs_cnt++ == 0)
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mime->types_cnt++;
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p->icon_24 = NULL;
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p->icon_48 = NULL;
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p->icon_96 = NULL;
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#if 0
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p->open = mime->config != NULL
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? config_get(mime->config, buf, "open") : NULL;
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p->edit = mime->config != NULL
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? config_get(mime->config, buf, "edit") : NULL;
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#endif
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}
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if(!feof(fp))
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{
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perror(*g);
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mime_delete(mime);
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mime = NULL;
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}
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fclose(fp);
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return mime;
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}
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static void _new_config(Mime * mime)
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{
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char * filename;
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if((mime->config = config_new()) == NULL)
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return;
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if((filename = _mime_get_config_filename()) == NULL)
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return;
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config_load(mime->config, filename);
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string_delete(filename);
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}
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/* mime_delete */
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void mime_delete(Mime * mime)
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{
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size_t i;
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size_t j;
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for(i = 0; i < mime->types_cnt; i++)
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{
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free(mime->types[i].type);
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for(j = 0; j < mime->types[i].globs_cnt; j++)
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free(mime->types[i].globs[j]);
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free(mime->types[i].globs);
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if(mime->types[i].icon_24 != NULL)
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g_object_unref(mime->types[i].icon_24);
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if(mime->types[i].icon_48 != NULL)
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g_object_unref(mime->types[i].icon_48);
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if(mime->types[i].icon_96 != NULL)
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g_object_unref(mime->types[i].icon_96);
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}
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free(mime->types);
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if(mime->config != NULL)
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config_delete(mime->config);
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object_delete(mime);
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}
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/* accessors */
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/* mime_get_handler */
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MimeHandler * mime_get_handler(Mime * mime, char const * type,
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char const * action)
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{
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MimeHandler * handler;
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String const * program;
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String * p;
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String * q;
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\")\n", __func__, type, action);
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#endif
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if(type == NULL || action == NULL)
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{
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error_set_code(-EINVAL, "%s", strerror(EINVAL));
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return NULL;
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}
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if((program = config_get(mime->config, type, action)) != NULL
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&& (handler = mimehandler_new_load_by_name(program))
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!= NULL)
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return handler;
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/* generic fallback */
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if((p = string_find(type, "/")) == NULL || *(++p) == '\0'
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|| (p = string_new(type)) == NULL)
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/* XXX the error may not be reported */
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return NULL;
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q = string_find(p, "/");
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q[1] = '*';
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q[2] = '\0';
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program = config_get(mime->config, p, action);
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string_delete(p);
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if(program == NULL)
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return NULL;
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return mimehandler_new_load_by_name(program);
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}
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/* mime_set_handler */
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int mime_set_handler(Mime * mime, char const * type, char const * action,
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char const * handler)
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{
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if(handler != NULL && strcmp(handler, "") == 0)
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handler = NULL;
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return config_set(mime->config, type, action, handler);
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}
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/* useful */
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/* mime_type */
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char const * mime_type(Mime * mime, char const * path)
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{
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char const * p;
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size_t i;
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size_t j;
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, path);
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#endif
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p = strrchr(path, '/');
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p = (p != NULL) ? p + 1 : path;
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for(i = 0; i < mime->types_cnt; i++)
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{
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for(j = 0; j < mime->types[i].globs_cnt; j++)
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if(fnmatch(mime->types[i].globs[j], p, FNM_NOESCAPE)
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== 0)
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break;
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if(j < mime->types[i].globs_cnt)
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break;
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}
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#ifdef FNM_CASEFOLD
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if(i < mime->types_cnt)
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return mime->types[i].type;
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for(i = 0; i < mime->types_cnt; i++)
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for(j = 0; j < mime->types[i].globs_cnt; j++)
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if(fnmatch(mime->types[i].globs[j], p,
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FNM_NOESCAPE | FNM_CASEFOLD)
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== 0)
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return mime->types[i].type;
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#endif
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return NULL;
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}
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/* mime_action */
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int mime_action(Mime * mime, char const * action, char const * path)
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{
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char const * type;
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\")\n", __func__, action, path);
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#endif
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if((type = mime_type(mime, path)) == NULL)
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return 1;
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return mime_action_type(mime, action, path, type);
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}
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/* mime_action_type */
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int mime_action_type(Mime * mime, char const * action, char const * path,
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char const * type)
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{
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int ret;
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MimeHandler * handler;
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\", \"%s\")\n", __func__, action,
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path, type);
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#endif
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if((handler = mime_get_handler(mime, type, action)) == NULL)
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return -1;
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ret = mimehandler_open(handler, path);
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mimehandler_delete(handler);
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return ret;
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}
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/* mime_foreach */
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void mime_foreach(Mime * mime, MimeForeachCallback callback, void * data)
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{
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size_t i;
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for(i = 0; i < mime->types_cnt; i++)
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{
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if(mime->types[i].icon_24 == NULL)
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mime->types[i].icon_24 = _mime_icons_size(mime,
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mime->types[i].type, 24);
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if(mime->types[i].icon_48 == NULL)
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mime->types[i].icon_48 = _mime_icons_size(mime,
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mime->types[i].type, 48);
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if(mime->types[i].icon_96 == NULL)
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mime->types[i].icon_96 = _mime_icons_size(mime,
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mime->types[i].type, 96);
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callback(data, mime->types[i].type, mime->types[i].icon_24,
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mime->types[i].icon_48, mime->types[i].icon_96);
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}
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}
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/* mime_icons */
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void mime_icons(Mime * mime, char const * type, ...)
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{
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size_t i;
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va_list arg;
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int size;
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GdkPixbuf ** icon;
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if(type == NULL)
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i = mime->types_cnt;
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else
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for(i = 0; i < mime->types_cnt; i++)
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if(strcmp(type, mime->types[i].type) == 0)
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break;
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va_start(arg, type);
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while((size = va_arg(arg, int)) > 0)
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{
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icon = va_arg(arg, GdkPixbuf **);
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if(i >= mime->types_cnt)
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*icon = _mime_icons_size(mime, type, size);
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else if(size == 24)
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{
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if(mime->types[i].icon_24 == NULL)
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mime->types[i].icon_24 = _mime_icons_size(mime,
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type, size);
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*icon = mime->types[i].icon_24;
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g_object_ref(*icon);
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}
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else if(size == 48)
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{
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if(mime->types[i].icon_48 == NULL)
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mime->types[i].icon_48 = _mime_icons_size(mime,
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type, size);
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*icon = mime->types[i].icon_48;
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g_object_ref(*icon);
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}
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else if(size == 96)
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{
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if(mime->types[i].icon_96 == NULL)
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mime->types[i].icon_96 = _mime_icons_size(mime,
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type, size);
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*icon = mime->types[i].icon_96;
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g_object_ref(*icon);
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}
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else
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*icon = _mime_icons_size(mime, type, size);
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}
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va_end(arg);
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}
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/* mime_save */
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int mime_save(Mime * mime)
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{
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int ret;
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char * filename;
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if((filename = _mime_get_config_filename()) == NULL)
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return -1;
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ret = config_save(mime->config, filename);
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string_delete(filename);
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return ret;
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}
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/* private */
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/* functions */
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/* mime_get_config_filename */
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static char * _mime_get_config_filename(void)
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{
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char const * homedir;
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if((homedir = getenv("HOME")) == NULL
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&& (homedir = g_get_home_dir()) == NULL)
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return NULL; /* XXX set error */
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return string_new_append(homedir, "/", MIME_CONFIG_FILE, NULL);
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}
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/* mime_icons_size */
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static GdkPixbuf * _icons_size_fallback_file(Mime * mime, int size, int flags);
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static GdkPixbuf * _icons_size_fallback_folder(Mime * mime, int size,
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int flags);
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static GdkPixbuf * _mime_icons_size(Mime * mime, char const * type, int size)
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{
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GdkPixbuf * ret;
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static char buf[256] = "gnome-mime-";
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char * p;
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GtkIconLookupFlags flags = GTK_ICON_LOOKUP_USE_BUILTIN
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#if GTK_CHECK_VERSION(2, 12, 0)
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| GTK_ICON_LOOKUP_GENERIC_FALLBACK
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#endif
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;
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char const mountpoint[] = "inode/mountpoint";
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char const folder[] = "inode/directory";
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if(type == NULL)
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return _icons_size_fallback_file(mime, size, flags);
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/* check if it is a mountpoint */
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if(strcmp(type, mountpoint) == 0)
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{
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if((ret = gtk_icon_theme_load_icon(mime->theme, "mount-point",
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size, flags, NULL)) != NULL)
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return ret;
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/* fallback to a folder icon */
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return _icons_size_fallback_folder(mime, size, flags);
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}
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/* check if it is a folder */
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if(strcmp(type, folder) == 0)
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return _icons_size_fallback_folder(mime, size, flags);
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/* try to guess an icon */
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strncpy(&buf[11], type, sizeof(buf) - 11);
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buf[sizeof(buf) - 1] = '\0';
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for(; (p = strchr(&buf[11], '/')) != NULL; *p = '-');
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if((ret = gtk_icon_theme_load_icon(mime->theme, buf, size,
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flags, NULL)) != NULL)
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return ret;
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return _icons_size_fallback_file(mime, size, flags);
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}
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static GdkPixbuf * _icons_size_fallback_file(Mime * mime, int size, int flags)
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{
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GdkPixbuf * ret;
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char const * fallbacks[] =
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{
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"gnome-fs-regular",
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#if GTK_CHECK_VERSION(2, 6, 0)
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GTK_STOCK_FILE,
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#endif
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GTK_STOCK_MISSING_IMAGE
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};
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size_t i;
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/* fallback to a regular icon */
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for(i = 0; i < sizeof(fallbacks) / sizeof(*fallbacks); i++)
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if((ret = gtk_icon_theme_load_icon(mime->theme, fallbacks[i],
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size, flags, NULL)) != NULL)
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return ret;
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return NULL;
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}
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static GdkPixbuf * _icons_size_fallback_folder(Mime * mime, int size, int flags)
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{
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GdkPixbuf * ret;
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char const * fallbacks[] =
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{
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"gnome-fs-directory",
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#if GTK_CHECK_VERSION(2, 6, 0)
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GTK_STOCK_DIRECTORY,
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#endif
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GTK_STOCK_MISSING_IMAGE
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};
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size_t i;
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/* fallback to a folder icon */
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for(i = 0; i < sizeof(fallbacks) / sizeof(*fallbacks); i++)
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if((ret = gtk_icon_theme_load_icon(mime->theme, fallbacks[i],
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size, flags, NULL)) != NULL)
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return ret;
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/* fallback to a regular icon */
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|
return _icons_size_fallback_file(mime, size, flags);
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}
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