+++ /dev/null
-/*
- * Geeqie
- * (C) 2004 John Ellis
- * Copyright (C) 2008 The Geeqie Team
- *
- * Author: John Ellis, Laurent Monin
- *
- * This software is released under the GNU General Public License (GNU GPL).
- * Please read the included file COPYING for more information.
- * This software comes with no warranty of any kind, use at your own risk!
- */
-
-
-#include "main.h"
-#include "metadata.h"
-
-#include "cache.h"
-#include "exif.h"
-#include "filedata.h"
-#include "misc.h"
-#include "secure_save.h"
-#include "ui_fileops.h"
-#include "ui_misc.h"
-#include "utilops.h"
-#include "filefilter.h"
-
-typedef enum {
- MK_NONE,
- MK_KEYWORDS,
- MK_COMMENT
-} MetadataKey;
-
-static const gchar *group_keys[] = {KEYWORD_KEY, COMMENT_KEY, NULL}; /* tags that will be written to all files in a group */
-
-static gboolean metadata_write_queue_idle_cb(gpointer data);
-static gint metadata_legacy_write(FileData *fd);
-static void metadata_legacy_delete(FileData *fd, const gchar *except);
-
-
-
-/*
- *-------------------------------------------------------------------
- * write queue
- *-------------------------------------------------------------------
- */
-
-static GList *metadata_write_queue = NULL;
-static gint metadata_write_idle_id = -1;
-
-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);
- }
-
- if (metadata_write_idle_id != -1)
- {
- g_source_remove(metadata_write_idle_id);
- metadata_write_idle_id = -1;
- }
-
- if (options->metadata.confirm_timeout > 0)
- {
- metadata_write_idle_id = g_timeout_add(options->metadata.confirm_timeout * 1000, metadata_write_queue_idle_cb, NULL);
- }
-}
-
-
-gboolean metadata_write_queue_remove(FileData *fd)
-{
- g_hash_table_destroy(fd->modified_xmp);
- fd->modified_xmp = NULL;
-
- metadata_write_queue = g_list_remove(metadata_write_queue, fd);
-
- file_data_increment_version(fd);
- file_data_send_notification(fd, NOTIFY_TYPE_REREAD);
-
- file_data_unref(fd);
- return TRUE;
-}
-
-gboolean metadata_write_queue_remove_list(GList *list)
-{
- GList *work;
- gboolean ret = TRUE;
-
- work = list;
- while (work)
- {
- FileData *fd = work->data;
- work = work->next;
- ret = ret && metadata_write_queue_remove(fd);
- }
- return ret;
-}
-
-
-gboolean metadata_write_queue_confirm(FileUtilDoneFunc done_func, gpointer done_data)
-{
- GList *work;
- GList *to_approve = NULL;
-
- work = metadata_write_queue;
- while (work)
- {
- FileData *fd = work->data;
- work = work->next;
-
- 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(NULL, to_approve, NULL, done_func, done_data);
-
- filelist_free(to_approve);
-
- return (metadata_write_queue != NULL);
-}
-
-static gboolean metadata_write_queue_idle_cb(gpointer data)
-{
- metadata_write_queue_confirm(NULL, NULL);
- metadata_write_idle_id = -1;
- return FALSE;
-}
-
-gboolean metadata_write_perform(FileData *fd)
-{
- gboolean success;
- ExifData *exif;
-
- g_assert(fd->change);
-
- if (fd->change->dest &&
- strcmp(extension_from_path(fd->change->dest), GQ_CACHE_EXT_METADATA) == 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 (success) metadata_legacy_delete(fd, fd->change->dest);
- return success;
-}
-
-static gboolean metadata_check_key(const gchar *keys[], const gchar *key)
-{
- const gchar **k = keys;
-
- while (k)
- {
- if (strcmp(key, *k) == 0) return TRUE;
- k++;
- }
- return FALSE;
-}
-
-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, (GDestroyNotify)string_list_free);
- }
- g_hash_table_insert(fd->modified_xmp, g_strdup(key), string_list_copy((GList *)values));
- 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_TYPE_INTERNAL);
-
- if (options->metadata.sync_grouped_files && metadata_check_key(group_keys, key))
- {
- GList *work = fd->sidecar_files;
-
- while (work)
- {
- FileData *sfd = work->data;
- work = work->next;
-
- if (filter_file_class(sfd->extension, 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(NULL, g_strdup(value));
- gboolean ret = metadata_write_list(fd, key, list);
- string_list_free(list);
- return ret;
-}
-
-
-/*
- *-------------------------------------------------------------------
- * keyword / comment read/write
- *-------------------------------------------------------------------
- */
-
-static gint metadata_file_write(gchar *path, GHashTable *modified_xmp)
-{
- SecureSaveInfo *ssi;
- GList *keywords = g_hash_table_lookup(modified_xmp, KEYWORD_KEY);
- GList *comment_l = g_hash_table_lookup(modified_xmp, COMMENT_KEY);
- gchar *comment = comment_l ? comment_l->data : NULL;
-
- ssi = secure_open(path);
- if (!ssi) return FALSE;
-
- secure_fprintf(ssi, "#%s comment (%s)\n\n", GQ_APPNAME, VERSION);
-
- secure_fprintf(ssi, "[keywords]\n");
- while (keywords && secsave_errno == SS_ERR_NONE)
- {
- const gchar *word = keywords->data;
- keywords = keywords->next;
-
- 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 gint metadata_legacy_write(FileData *fd)
-{
- gint success = FALSE;
-
- g_assert(fd->change && fd->change->dest);
- gchar *metadata_pathl;
-
- DEBUG_1("Saving comment: %s", fd->change->dest);
-
- metadata_pathl = path_from_utf8(fd->change->dest);
-
- success = metadata_file_write(metadata_pathl, fd->modified_xmp);
-
- g_free(metadata_pathl);
-
- return success;
-}
-
-static gint metadata_file_read(gchar *path, GList **keywords, gchar **comment)
-{
- FILE *f;
- gchar s_buf[1024];
- MetadataKey key = MK_NONE;
- GList *list = NULL;
- GString *comment_build = NULL;
-
- f = fopen(path, "r");
- if (!f) return FALSE;
-
- 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 (strlen(s_buf) > 0)
- {
- gchar *kw = utf8_validate_or_convert(s_buf);
-
- list = g_list_prepend(list, kw);
- }
- }
- break;
- case MK_COMMENT:
- if (!comment_build) comment_build = g_string_new("");
- g_string_append(comment_build, s_buf);
- break;
- }
- }
-
- fclose(f);
-
- if (keywords)
- {
- *keywords = g_list_reverse(list);
- }
- else
- {
- string_list_free(list);
- }
-
- if (comment_build)
- {
- if (comment)
- {
- 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)
- {
- gchar *text = g_strndup(ptr, len);
-
- *comment = utf8_validate_or_convert(text);
- g_free(text);
- }
- }
- g_string_free(comment_build, TRUE);
- }
-
- return TRUE;
-}
-
-static void metadata_legacy_delete(FileData *fd, const gchar *except)
-{
- gchar *metadata_path;
- gchar *metadata_pathl;
- if (!fd) return;
-
- metadata_path = cache_find_location(CACHE_TYPE_METADATA, fd->path);
- if (metadata_path && (!except || strcmp(metadata_path, except) != 0))
- {
- metadata_pathl = path_from_utf8(metadata_path);
- unlink(metadata_pathl);
- g_free(metadata_pathl);
- g_free(metadata_path);
- }
- metadata_path = cache_find_location(CACHE_TYPE_XMP_METADATA, fd->path);
- if (metadata_path && (!except || strcmp(metadata_path, except) != 0))
- {
- metadata_pathl = path_from_utf8(metadata_path);
- unlink(metadata_pathl);
- g_free(metadata_pathl);
- g_free(metadata_path);
- }
-}
-
-static gint metadata_legacy_read(FileData *fd, GList **keywords, gchar **comment)
-{
- gchar *metadata_path;
- gchar *metadata_pathl;
- gint success = FALSE;
- if (!fd) return FALSE;
-
- metadata_path = cache_find_location(CACHE_TYPE_METADATA, fd->path);
- if (!metadata_path) return FALSE;
-
- metadata_pathl = path_from_utf8(metadata_path);
-
- success = metadata_file_read(metadata_pathl, keywords, comment);
-
- g_free(metadata_pathl);
- g_free(metadata_path);
-
- return success;
-}
-
-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 = NULL;
-
- while (work)
- {
- gchar *key = work->data;
-
- if (g_hash_table_lookup(hashtable, key) == NULL)
- {
- g_hash_table_insert(hashtable, (gpointer) 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)
-{
- ExifData *exif;
- GList *list = NULL;
- if (!fd) return NULL;
-
- /* unwritten data overide everything */
- if (fd->modified_xmp)
- {
- list = g_hash_table_lookup(fd->modified_xmp, key);
- if (list) return string_list_copy(list);
- }
-
- /*
- 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, NULL)) return list;
- }
-
- if (strcmp(key, COMMENT_KEY) == 0)
- {
- gchar *comment = NULL;
- if (metadata_legacy_read(fd, NULL, &comment)) return g_list_append(NULL, comment);
- }
-
- exif = exif_read_fd(fd); /* this is cached, thus inexpensive */
- if (!exif) return NULL;
- list = exif_get_metadata(exif, key);
- exif_free_fd(fd, exif);
- return list;
-}
-
-gchar *metadata_read_string(FileData *fd, const gchar *key)
-{
- GList *string_list = metadata_read_list(fd, key);
- if (string_list)
- {
- gchar *str = string_list->data;
- string_list->data = NULL;
- string_list_free(string_list);
- return str;
- }
- return NULL;
-}
-
-gboolean metadata_append_string(FileData *fd, const gchar *key, const char *value)
-{
- gchar *str = metadata_read_string(fd, key);
-
- if (!str)
- {
- return metadata_write_string(fd, key, value);
- }
- else
- {
- gchar *new_string = g_strconcat(str, value, NULL);
- gboolean ret = metadata_write_string(fd, key, new_string);
- g_free(str);
- g_free(new_string);
- return ret;
- }
-}
-
-gboolean metadata_append_list(FileData *fd, const gchar *key, const GList *values)
-{
- GList *list = metadata_read_list(fd, key);
-
- if (!list)
- {
- return metadata_write_list(fd, key, values);
- }
- else
- {
- 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);
- string_list_free(list);
- return ret;
- }
-}
-
-gboolean find_string_in_list(GList *list, const gchar *string)
-{
- while (list)
- {
- gchar *haystack = list->data;
-
- if (haystack && string && strcmp(haystack, string) == 0) return TRUE;
-
- list = list->next;
- }
-
- return FALSE;
-}
-
-#define KEYWORDS_SEPARATOR(c) ((c) == ',' || (c) == ';' || (c) == '\n' || (c) == '\r' || (c) == '\b')
-
-GList *string_to_keywords_list(const gchar *text)
-{
- GList *list = NULL;
- const gchar *ptr = text;
-
- while (*ptr != '\0')
- {
- const gchar *begin;
- gint l = 0;
-
- while (KEYWORDS_SEPARATOR(*ptr)) ptr++;
- begin = ptr;
- while (*ptr != '\0' && !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)
- {
- gchar *keyword = g_strndup(begin, l);
-
- /* only add if not already in the list */
- if (find_string_in_list(list, keyword) == FALSE)
- list = g_list_append(list, keyword);
- else
- g_free(keyword);
- }
- }
-
- return list;
-}
-
-/*
- * keywords to marks
- */
-
-
-gboolean meta_data_get_keyword_mark(FileData *fd, gint n, gpointer data)
-{
- GList *keywords;
- gboolean found = FALSE;
- keywords = metadata_read_list(fd, KEYWORD_KEY);
- if (keywords)
- {
- GList *work = keywords;
-
- while (work)
- {
- gchar *kw = work->data;
- work = work->next;
-
- if (strcmp(kw, data) == 0)
- {
- found = TRUE;
- break;
- }
- }
- string_list_free(keywords);
- }
- return found;
-}
-
-gboolean meta_data_set_keyword_mark(FileData *fd, gint n, gboolean value, gpointer data)
-{
- GList *keywords = NULL;
- gboolean found = FALSE;
- gboolean changed = FALSE;
- GList *work;
- keywords = metadata_read_list(fd, KEYWORD_KEY);
-
- work = keywords;
-
- while (work)
- {
- gchar *kw = work->data;
-
- if (strcmp(kw, data) == 0)
- {
- found = TRUE;
- if (!value)
- {
- changed = TRUE;
- keywords = g_list_delete_link(keywords, work);
- g_free(kw);
- }
- break;
- }
- work = work->next;
- }
- if (value && !found)
- {
- changed = TRUE;
- keywords = g_list_append(keywords, g_strdup(data));
- }
-
- if (changed) metadata_write_list(fd, KEYWORD_KEY, keywords);
-
- string_list_free(keywords);
- return TRUE;
-}
-
-
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */