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/*
* Copyright (C) 2004 John Ellis
* Copyright (C) 2008 - 2016 The Geeqie Team
*
* Authors: John Ellis, Laurent Monin
*
* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "metadata.h"
#include <algorithm>
#include <array>
#include <clocale>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
#include <glib-object.h>
#include <config.h>
#include "cache.h"
#include "exif.h"
#include "filedata.h"
#include "intl.h"
#include "layout-util.h"
#include "main-defines.h"
#include "misc.h"
#include "options.h"
#include "rcfile.h"
#include "secure-save.h"
#include "ui-fileops.h"
#include "utilops.h"
struct ExifData;
namespace
{
enum MetadataKey {
MK_NONE,
MK_KEYWORDS,
MK_COMMENT
};
struct MetadataCacheEntry {
gchar *key;
GList *values;
};
/* If contents change, keep GuideOptionsMetadata.xml up to date */
/**
* @brief Tags that will be written to all files in a group - selected by: options->metadata.sync_grouped_files, Preferences/Metadata/Write The Same Description Tags To All Grouped Sidecars
*/
constexpr std::array<const gchar *, 22> group_keys{
"Xmp.dc.title",
"Xmp.photoshop.Urgency",
"Xmp.photoshop.Category",
"Xmp.photoshop.SupplementalCategory",
"Xmp.dc.subject",
"Xmp.iptc.Location",
"Xmp.photoshop.Instruction",
"Xmp.photoshop.DateCreated",
"Xmp.dc.creator",
"Xmp.photoshop.AuthorsPosition",
"Xmp.photoshop.City",
"Xmp.photoshop.State",
"Xmp.iptc.CountryCode",
"Xmp.photoshop.Country",
"Xmp.photoshop.TransmissionReference",
"Xmp.photoshop.Headline",
"Xmp.photoshop.Credit",
"Xmp.photoshop.Source",
"Xmp.dc.rights",
"Xmp.dc.description",
"Xmp.photoshop.CaptionWriter",
"Xmp.xmp.Rating",
};
GtkTreeStore *keyword_tree;
gint metadata_cache_entry_compare_key(const MetadataCacheEntry *entry, const gchar *key)
{
return strcmp(entry->key, key);
}
void metadata_cache_entry_free(MetadataCacheEntry *entry)
{
if (!entry) return;
g_free(entry->key);
g_list_free_full(entry->values, g_free);
g_free(entry);
}
void string_list_free(gpointer data)
{
g_list_free_full(static_cast<GList *>(data), g_free);
}
inline gboolean is_keywords_separator(gchar c)
{
return c == ','
|| c == ';'
|| c == '\n'
|| c == '\r'
|| c == '\b';
}
} // namespace
static gboolean metadata_write_queue_idle_cb(gpointer data);
static gboolean metadata_legacy_write(FileData *fd);
static void metadata_legacy_delete(FileData *fd, const gchar *except);
static gboolean metadata_file_read(gchar *path, GList **keywords, gchar **comment);
/*
*-------------------------------------------------------------------
* long-term cache - keep keywords from whole dir in memory
*-------------------------------------------------------------------
*/
/* fd->cached_metadata list of MetadataCacheEntry */
static void metadata_cache_update(FileData *fd, const gchar *key, const GList *values)
{
GList *work;
work = g_list_find_custom(fd->cached_metadata, key, reinterpret_cast<GCompareFunc>(metadata_cache_entry_compare_key));
if (work)
{
/* key found - just replace values */
auto *entry = static_cast<MetadataCacheEntry *>(work->data);
g_list_free_full(entry->values, g_free);
entry->values = string_list_copy(values);
DEBUG_1("updated %s %s\n", key, fd->path);
return;
}
/* key not found - prepend new entry */
auto *entry = g_new0(MetadataCacheEntry, 1);
entry->key = g_strdup(key);
entry->values = string_list_copy(values);
fd->cached_metadata = g_list_prepend(fd->cached_metadata, entry);
DEBUG_1("added %s %s\n", key, fd->path);
}
static const GList *metadata_cache_get(FileData *fd, const gchar *key)
{
GList *work;
work = g_list_find_custom(fd->cached_metadata, key, reinterpret_cast<GCompareFunc>(metadata_cache_entry_compare_key));
if (work)
{
/* key found */
auto *entry = static_cast<MetadataCacheEntry *>(work->data);
DEBUG_1("found %s %s\n", key, fd->path);
return entry->values;
}
DEBUG_1("not found %s %s\n", key, fd->path);
return nullptr;
}
static void metadata_cache_remove(FileData *fd, const gchar *key)
{
GList *work;
work = g_list_find_custom(fd->cached_metadata, key, reinterpret_cast<GCompareFunc>(metadata_cache_entry_compare_key));
if (work)
{
/* key found */
auto *entry = static_cast<MetadataCacheEntry *>(work->data);
metadata_cache_entry_free(entry);
fd->cached_metadata = g_list_delete_link(fd->cached_metadata, work);
DEBUG_1("removed %s %s\n", key, fd->path);
return;
}
DEBUG_1("not removed %s %s\n", key, fd->path);
}
void metadata_cache_free(FileData *fd)
{
if (fd->cached_metadata) DEBUG_1("freed %s\n", fd->path);
g_list_free_full(fd->cached_metadata, reinterpret_cast<GDestroyNotify>(metadata_cache_entry_free));
fd->cached_metadata = nullptr;
}
/*
*-------------------------------------------------------------------
* write queue
*-------------------------------------------------------------------
*/
static GList *metadata_write_queue = nullptr;
static guint metadata_write_idle_id = 0; /* event source id */
static void metadata_write_queue_add(FileData *fd)
{
if (!g_list_find(metadata_write_queue, fd))
{
metadata_write_queue = g_list_prepend(metadata_write_queue, fd);
file_data_ref(fd);
layout_util_status_update_write_all();
}
if (metadata_write_idle_id)
{
g_source_remove(metadata_write_idle_id);
metadata_write_idle_id = 0;
}
if (options->metadata.confirm_after_timeout)
{
metadata_write_idle_id = g_timeout_add(options->metadata.confirm_timeout * 1000, metadata_write_queue_idle_cb, nullptr);
}
}
gboolean metadata_write_queue_remove(FileData *fd)
{
g_hash_table_destroy(fd->modified_xmp);
fd->modified_xmp = nullptr;
metadata_write_queue = g_list_remove(metadata_write_queue, fd);
file_data_increment_version(fd);
file_data_send_notification(fd, NOTIFY_REREAD);
file_data_unref(fd);
layout_util_status_update_write_all();
return TRUE;
}
void metadata_notify_cb(FileData *fd, NotifyType type, gpointer)
{
if (type & (NOTIFY_REREAD | NOTIFY_CHANGE))
{
metadata_cache_free(fd);
if (g_list_find(metadata_write_queue, fd))
{
DEBUG_1("Notify metadata: %s %04x", fd->path, type);
if (!isname(fd->path))
{
/* ignore deleted files */
metadata_write_queue_remove(fd);
}
}
}
}
gboolean metadata_write_queue_confirm(gboolean force_dialog, FileUtilDoneFunc done_func, gpointer done_data)
{
GList *work;
GList *to_approve = nullptr;
work = metadata_write_queue;
while (work)
{
auto fd = static_cast<FileData *>(work->data);
work = work->next;
if (!isname(fd->path))
{
/* ignore deleted files */
metadata_write_queue_remove(fd);
continue;
}
if (fd->change) continue; /* another operation in progress, skip this file for now */
to_approve = g_list_prepend(to_approve, file_data_ref(fd));
}
file_util_write_metadata(nullptr, to_approve, nullptr, force_dialog, done_func, done_data);
return (metadata_write_queue != nullptr);
}
static gboolean metadata_write_queue_idle_cb(gpointer)
{
metadata_write_queue_confirm(FALSE, nullptr, nullptr);
metadata_write_idle_id = 0;
return FALSE;
}
gboolean metadata_write_perform(FileData *fd)
{
gboolean success;
ExifData *exif;
guint lf;
g_assert(fd->change);
lf = strlen(GQ_CACHE_EXT_METADATA);
if (fd->change->dest &&
g_ascii_strncasecmp(fd->change->dest + strlen(fd->change->dest) - lf, GQ_CACHE_EXT_METADATA, lf) == 0)
{
success = metadata_legacy_write(fd);
if (success) metadata_legacy_delete(fd, fd->change->dest);
return success;
}
/* write via exiv2 */
/* we can either use cached metadata which have fd->modified_xmp already applied
or read metadata from file and apply fd->modified_xmp
metadata are read also if the file was modified meanwhile */
exif = exif_read_fd(fd);
if (!exif) return FALSE;
success = (fd->change->dest) ? exif_write_sidecar(exif, fd->change->dest) : exif_write(exif); /* write modified metadata */
exif_free_fd(fd, exif);
if (fd->change->dest)
/* this will create a FileData for the sidecar and link it to the main file
(we can't wait until the sidecar is discovered by directory scanning because
exif_read_fd is called before that and it would read the main file only and
store the metadata in the cache)
*/
/**
@FIXME this does not catch new sidecars created by independent external programs
*/
file_data_unref(file_data_new_group(fd->change->dest));
if (success) metadata_legacy_delete(fd, fd->change->dest);
return success;
}
gint metadata_queue_length()
{
return g_list_length(metadata_write_queue);
}
gboolean metadata_write_revert(FileData *fd, const gchar *key)
{
if (!fd->modified_xmp) return FALSE;
g_hash_table_remove(fd->modified_xmp, key);
if (g_hash_table_size(fd->modified_xmp) == 0)
{
metadata_write_queue_remove(fd);
}
else
{
/* reread the metadata to restore the original value */
file_data_increment_version(fd);
file_data_send_notification(fd, NOTIFY_REREAD);
}
return TRUE;
}
gboolean metadata_write_list(FileData *fd, const gchar *key, const GList *values)
{
if (!fd->modified_xmp)
{
fd->modified_xmp = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, string_list_free);
}
g_hash_table_insert(fd->modified_xmp, g_strdup(key), string_list_copy(const_cast<GList *>(values)));
metadata_cache_remove(fd, key);
if (fd->exif)
{
exif_update_metadata(fd->exif, key, values);
}
metadata_write_queue_add(fd);
file_data_increment_version(fd);
file_data_send_notification(fd, NOTIFY_METADATA);
auto metadata_check_key = [key](const gchar *k) { return strcmp(key, k) == 0; };
if (options->metadata.sync_grouped_files && std::any_of(group_keys.cbegin(), group_keys.cend(), metadata_check_key))
{
GList *work = fd->sidecar_files;
while (work)
{
auto sfd = static_cast<FileData *>(work->data);
work = work->next;
if (sfd->format_class == FORMAT_CLASS_META) continue;
metadata_write_list(sfd, key, values);
}
}
return TRUE;
}
gboolean metadata_write_string(FileData *fd, const gchar *key, const char *value)
{
GList *list = g_list_append(nullptr, g_strdup(value));
gboolean ret = metadata_write_list(fd, key, list);
g_list_free_full(list, g_free);
return ret;
}
gboolean metadata_write_int(FileData *fd, const gchar *key, guint64 value)
{
return metadata_write_string(fd, key, std::to_string(static_cast<unsigned long long>(value)).c_str());
}
/*
*-------------------------------------------------------------------
* keyword / comment read/write
*-------------------------------------------------------------------
*/
static gboolean metadata_file_write(gchar *path, const GList *keywords, const gchar *comment)
{
SecureSaveInfo *ssi;
ssi = secure_open(path);
if (!ssi) return FALSE;
secure_fprintf(ssi, "#%s comment (%s)\n\n", GQ_APPNAME, VERSION);
secure_fprintf(ssi, "[keywords]\n");
for (; keywords && secsave_succeed(); keywords = keywords->next)
{
auto word = static_cast<const gchar *>(keywords->data);
secure_fprintf(ssi, "%s\n", word);
}
secure_fputc(ssi, '\n');
secure_fprintf(ssi, "[comment]\n");
secure_fprintf(ssi, "%s\n", comment ? comment : "");
secure_fprintf(ssi, "#end\n");
return (secure_close(ssi) == 0);
}
static gboolean metadata_legacy_write(FileData *fd)
{
gboolean success = FALSE;
gpointer keywords;
gpointer comment_l;
gboolean have_keywords;
gboolean have_comment;
const gchar *comment;
GList *orig_keywords = nullptr;
g_assert(fd->change && fd->change->dest);
DEBUG_1("Saving comment: %s", fd->change->dest);
if (!fd->modified_xmp) return TRUE;
g_autofree gchar *metadata_pathl = path_from_utf8(fd->change->dest);
have_keywords = g_hash_table_lookup_extended(fd->modified_xmp, KEYWORD_KEY, nullptr, &keywords);
have_comment = g_hash_table_lookup_extended(fd->modified_xmp, COMMENT_KEY, nullptr, &comment_l);
comment = static_cast<const gchar *>((have_comment && comment_l) ? (static_cast<GList *>(comment_l))->data : nullptr);
g_autofree gchar *orig_comment = nullptr;
if (!have_keywords || !have_comment) metadata_file_read(metadata_pathl, &orig_keywords, &orig_comment);
success = metadata_file_write(metadata_pathl,
have_keywords ? static_cast<GList *>(keywords) : orig_keywords,
have_comment ? comment : orig_comment);
g_list_free_full(orig_keywords, g_free);
return success;
}
static gboolean metadata_file_read(gchar *path, GList **keywords, gchar **comment)
{
FILE *f;
gchar s_buf[1024];
MetadataKey key = MK_NONE;
GList *list = nullptr;
f = fopen(path, "r");
if (!f) return FALSE;
g_autoptr(GString) comment_build = g_string_new(nullptr);
while (fgets(s_buf, sizeof(s_buf), f))
{
gchar *ptr = s_buf;
if (*ptr == '#') continue;
if (*ptr == '[' && key != MK_COMMENT)
{
gchar *keystr = ++ptr;
key = MK_NONE;
while (*ptr != ']' && *ptr != '\n' && *ptr != '\0') ptr++;
if (*ptr == ']')
{
*ptr = '\0';
if (g_ascii_strcasecmp(keystr, "keywords") == 0)
key = MK_KEYWORDS;
else if (g_ascii_strcasecmp(keystr, "comment") == 0)
key = MK_COMMENT;
}
continue;
}
switch (key)
{
case MK_NONE:
break;
case MK_KEYWORDS:
{
while (*ptr != '\n' && *ptr != '\0') ptr++;
*ptr = '\0';
if (s_buf[0] != '\0')
{
gchar *kw = utf8_validate_or_convert(s_buf);
list = g_list_prepend(list, kw);
}
}
break;
case MK_COMMENT:
g_string_append(comment_build, s_buf);
break;
}
}
fclose(f);
if (keywords)
{
*keywords = g_list_reverse(list);
}
else
{
g_list_free_full(list, g_free);
}
if (comment && comment_build->len > 0)
{
gint len;
gchar *ptr = comment_build->str;
/* strip leading and trailing newlines */
while (*ptr == '\n') ptr++;
len = strlen(ptr);
while (len > 0 && ptr[len - 1] == '\n') len--;
if (ptr[len] == '\n') len++; /* keep the last one */
if (len > 0)
{
g_autofree gchar *text = g_strndup(ptr, len);
*comment = utf8_validate_or_convert(text);
}
}
return TRUE;
}
static void metadata_legacy_delete(FileData *fd, const gchar *except)
{
if (!fd) return;
g_autofree gchar *metadata_path = cache_find_location(CACHE_TYPE_METADATA, fd->path);
if (metadata_path && (!except || strcmp(metadata_path, except) != 0))
{
unlink_file(metadata_path);
}
#if HAVE_EXIV2
/* without exiv2: do not delete xmp metadata because we are not able to convert it,
just ignore it */
g_autofree gchar *xmp_metadata_path = cache_find_location(CACHE_TYPE_XMP_METADATA, fd->path);
if (xmp_metadata_path && (!except || strcmp(xmp_metadata_path, except) != 0))
{
unlink_file(xmp_metadata_path);
}
#endif
}
static gboolean metadata_legacy_read(FileData *fd, GList **keywords, gchar **comment)
{
if (!fd) return FALSE;
g_autofree gchar *metadata_path = cache_find_location(CACHE_TYPE_METADATA, fd->path);
if (!metadata_path) return FALSE;
g_autofree gchar *metadata_pathl = path_from_utf8(metadata_path);
return metadata_file_read(metadata_pathl, keywords, comment);
}
static GList *remove_duplicate_strings_from_list(GList *list)
{
GList *work = list;
GHashTable *hashtable = g_hash_table_new(g_str_hash, g_str_equal);
GList *newlist = nullptr;
while (work)
{
auto key = static_cast<gchar *>(work->data);
if (g_hash_table_lookup(hashtable, key) == nullptr)
{
g_hash_table_insert(hashtable, key, GINT_TO_POINTER(1));
newlist = g_list_prepend(newlist, key);
}
work = work->next;
}
g_hash_table_destroy(hashtable);
g_list_free(list);
return g_list_reverse(newlist);
}
GList *metadata_read_list(FileData *fd, const gchar *key, MetadataFormat format)
{
ExifData *exif;
GList *list = nullptr;
const GList *cache_values;
if (!fd) return nullptr;
/* unwritten data override everything */
if (fd->modified_xmp && format == METADATA_PLAIN)
{
list = static_cast<GList *>(g_hash_table_lookup(fd->modified_xmp, key));
if (list) return string_list_copy(list);
}
if (format == METADATA_PLAIN && strcmp(key, KEYWORD_KEY) == 0
&& (cache_values = metadata_cache_get(fd, key)))
{
return string_list_copy(cache_values);
}
/*
Legacy metadata file is the primary source if it exists.
Merging the lists does not make much sense, because the existence of
legacy metadata file indicates that the other metadata sources are not
writable and thus it would not be possible to delete the keywords
that comes from the image file.
*/
if (strcmp(key, KEYWORD_KEY) == 0)
{
if (metadata_legacy_read(fd, &list, nullptr))
{
if (format == METADATA_PLAIN)
{
metadata_cache_update(fd, key, list);
}
return list;
}
}
else if (strcmp(key, COMMENT_KEY) == 0)
{
gchar *comment = nullptr;
if (metadata_legacy_read(fd, nullptr, &comment)) return g_list_append(nullptr, comment);
}
else if (strncmp(key, "file.", 5) == 0)
{
return g_list_append(nullptr, metadata_file_info(fd, key, format));
}
#if HAVE_LUA
else if (strncmp(key, "lua.", 4) == 0)
{
return g_list_append(nullptr, metadata_lua_info(fd, key, format));
}
#endif
exif = exif_read_fd(fd); /* this is cached, thus inexpensive */
if (!exif) return nullptr;
list = exif_get_metadata(exif, key, format);
exif_free_fd(fd, exif);
if (format == METADATA_PLAIN && strcmp(key, KEYWORD_KEY) == 0)
{
metadata_cache_update(fd, key, list);
}
return list;
}
gchar *metadata_read_string(FileData *fd, const gchar *key, MetadataFormat format)
{
GList *string_list = metadata_read_list(fd, key, format);
if (string_list)
{
auto str = static_cast<gchar *>(string_list->data);
string_list->data = nullptr;
g_list_free_full(string_list, g_free);
return str;
}
return nullptr;
}
guint64 metadata_read_int(FileData *fd, const gchar *key, guint64 fallback)
{
guint64 ret;
gchar *endptr;
g_autofree gchar *string = metadata_read_string(fd, key, METADATA_PLAIN);
if (!string) return fallback;
ret = g_ascii_strtoull(string, &endptr, 10);
if (string == endptr) ret = fallback;
return ret;
}
gchar *metadata_read_rating_stars(FileData *fd)
{
gchar *ret;
gint n = metadata_read_int(fd, RATING_KEY, METADATA_PLAIN);
ret = convert_rating_to_stars(n);
return ret;
}
gdouble metadata_read_GPS_coord(FileData *fd, const gchar *key, gdouble fallback)
{
gdouble coord;
gchar *endptr;
gdouble deg;
gdouble min;
gdouble sec;
gboolean ok = FALSE;
g_autofree gchar *string = metadata_read_string(fd, key, METADATA_PLAIN);
if (!string) return fallback;
deg = g_ascii_strtod(string, &endptr);
if (*endptr == ',')
{
min = g_ascii_strtod(endptr + 1, &endptr);
if (*endptr == ',')
sec = g_ascii_strtod(endptr + 1, &endptr);
else
sec = 0.0;
if (*endptr == 'S' || *endptr == 'W' || *endptr == 'N' || *endptr == 'E')
{
coord = deg + min /60.0 + sec / 3600.0;
ok = TRUE;
if (*endptr == 'S' || *endptr == 'W') coord = -coord;
}
}
if (!ok)
{
coord = fallback;
log_printf("unable to parse GPS coordinate '%s'\n", string);
}
return coord;
}
gdouble metadata_read_GPS_direction(FileData *fd, const gchar *key, gdouble fallback)
{
gchar *endptr;
gdouble deg;
gboolean ok = FALSE;
g_autofree gchar *string = metadata_read_string(fd, key, METADATA_PLAIN);
if (!string) return fallback;
DEBUG_3("GPS_direction: %s\n", string);
deg = g_ascii_strtod(string, &endptr);
/* Expected text string is of the format e.g.:
* 18000/100
*/
if (*endptr == '/')
{
deg = deg/100;
ok = TRUE;
}
if (!ok)
{
deg = fallback;
log_printf("unable to parse GPS direction '%s: %f'\n", string, deg);
}
return deg;
}
gboolean metadata_append_string(FileData *fd, const gchar *key, const char *value)
{
g_autofree gchar *str = metadata_read_string(fd, key, METADATA_PLAIN);
if (!str)
{
return metadata_write_string(fd, key, value);
}
g_autofree gchar *new_string = g_strconcat(str, value, NULL);
return metadata_write_string(fd, key, new_string);
}
gboolean metadata_write_GPS_coord(FileData *fd, const gchar *key, gdouble value)
{
gint deg;
gdouble min;
gdouble param;
const char *ref;
gboolean ok = TRUE;
char *old_locale;
char *saved_locale;
param = value;
if (param < 0)
param = -param;
deg = param;
min = (param * 60) - (deg * 60);
if (g_strcmp0(key, "Xmp.exif.GPSLongitude") == 0)
if (value < 0)
ref = "W";
else
ref = "E";
else if (g_strcmp0(key, "Xmp.exif.GPSLatitude") == 0)
if (value < 0)
ref = "S";
else
ref = "N";
else
{
log_printf("unknown GPS parameter key '%s'\n", key);
ok = FALSE;
}
if (ok)
{
/* Avoid locale problems with commas and decimal points in numbers */
old_locale = setlocale(LC_ALL, nullptr);
saved_locale = strdup(old_locale);
if (saved_locale == nullptr)
{
return FALSE;
}
setlocale(LC_ALL, "C");
g_autofree gchar *coordinate = g_strdup_printf("%i,%f,%s", deg, min, ref);
metadata_write_string(fd, key, coordinate );
setlocale(LC_ALL, saved_locale);
free(saved_locale);
}
return ok;
}
gboolean metadata_append_list(FileData *fd, const gchar *key, const GList *values)
{
GList *list = metadata_read_list(fd, key, METADATA_PLAIN);
if (!list)
{
return metadata_write_list(fd, key, values);
}
gboolean ret;
list = g_list_concat(list, string_list_copy(values));
list = remove_duplicate_strings_from_list(list);
ret = metadata_write_list(fd, key, list);
g_list_free_full(list, g_free);
return ret;
}
/**
* @brief Find a existent string in a list.
*
* Search with or without case for the existence of a string.
*
* @param list The list to search in
* @param string The string to search for
* @return The GList or NULL
*/
static GList *find_string_in_list(GList *list, const gchar *string)
{
if (!string) return nullptr;
if (options->metadata.keywords_case_sensitive)
return g_list_find_custom(list, string, reinterpret_cast<GCompareFunc>(g_strcmp0));
g_autofree gchar *string_casefold = g_utf8_casefold(string, -1);
static const auto string_compare_utf8nocase = [](gconstpointer data, gconstpointer user_data)
{
if (!data) return 1;
g_autofree gchar *haystack = g_utf8_casefold(static_cast<const gchar *>(data), -1);
return strcmp(haystack, static_cast<const gchar *>(user_data));
};
return g_list_find_custom(list, string_casefold, string_compare_utf8nocase);
}
GList *string_to_keywords_list(const gchar *text)
{
GList *list = nullptr;
const gchar *ptr = text;
while (*ptr != '\0')
{
const gchar *begin;
gint l = 0;
while (is_keywords_separator(*ptr)) ptr++;
begin = ptr;
while (*ptr != '\0' && !is_keywords_separator(*ptr))
{
ptr++;
l++;
}
/* trim starting and ending whitespaces */
while (l > 0 && g_ascii_isspace(*begin)) begin++, l--;
while (l > 0 && g_ascii_isspace(begin[l-1])) l--;
if (l > 0)
{
g_autofree gchar *keyword = g_strndup(begin, l);
/* only add if not already in the list */
if (!find_string_in_list(list, keyword))
{
list = g_list_append(list, g_steal_pointer(&keyword));
}
}
}
return list;
}
/*
* keywords to marks
*/
gboolean meta_data_get_keyword_mark(FileData *fd, gint, gpointer data)
{
/** @FIXME do not use global keyword_tree */
auto path = static_cast<GList *>(data);
GList *keywords;
gboolean found = FALSE;
keywords = metadata_read_list(fd, KEYWORD_KEY, METADATA_PLAIN);
if (keywords)
{
GtkTreeIter iter;
if (keyword_tree_get_iter(GTK_TREE_MODEL(keyword_tree), &iter, path) &&
keyword_tree_is_set(GTK_TREE_MODEL(keyword_tree), &iter, keywords))
found = TRUE;
}
return found;
}
gboolean meta_data_set_keyword_mark(FileData *fd, gint, gboolean value, gpointer data)
{
auto path = static_cast<GList *>(data);
GList *keywords = nullptr;
GtkTreeIter iter;
if (!keyword_tree_get_iter(GTK_TREE_MODEL(keyword_tree), &iter, path)) return FALSE;
keywords = metadata_read_list(fd, KEYWORD_KEY, METADATA_PLAIN);
if (!!keyword_tree_is_set(GTK_TREE_MODEL(keyword_tree), &iter, keywords) != !!value)
{
if (value)
{
keyword_tree_set(GTK_TREE_MODEL(keyword_tree), &iter, &keywords);
}
else
{
keyword_tree_reset(GTK_TREE_MODEL(keyword_tree), &iter, &keywords);
}
metadata_write_list(fd, KEYWORD_KEY, keywords);
}