[gthumb] scripts: use the new API to evalute the command template
- From: Paolo Bacchilega <paobac src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gthumb] scripts: use the new API to evalute the command template
- Date: Sat, 19 Jun 2021 18:10:34 +0000 (UTC)
commit 5b6ac500094389d60adb5424363b1dccabb66292
Author: Paolo Bacchilega <paobac src gnome org>
Date: Sun May 16 12:40:58 2021 +0200
scripts: use the new API to evalute the command template
extensions/list_tools/gth-script.c | 632 +++++++++++++++++--------------------
extensions/list_tools/gth-script.h | 13 +
2 files changed, 302 insertions(+), 343 deletions(-)
---
diff --git a/extensions/list_tools/gth-script.c b/extensions/list_tools/gth-script.c
index f90b5606..7d4800ae 100644
--- a/extensions/list_tools/gth-script.c
+++ b/extensions/list_tools/gth-script.c
@@ -434,33 +434,45 @@ gth_script_wait_command (GthScript *script)
}
+/* -- gth_script_get_requested_attributes -- */
+
+
+static gboolean
+collect_attributes_cb (gunichar parent_code,
+ gunichar code,
+ char **args,
+ gpointer user_data)
+{
+ GString *result = user_data;
+
+ if (code == GTH_SCRIPT_CODE_FILE_ATTRIBUTE) {
+ if (result->str[0] != 0)
+ g_string_append_c (result, ',');
+ g_string_append (result, args[0]);
+ }
+
+ return FALSE;
+}
+
+
char *
gth_script_get_requested_attributes (GthScript *script)
{
- GRegex *re;
- char **a;
- int i, n, j;
- char **b;
- char *attributes;
-
- re = g_regex_new ("%attr\\{([^}]+)\\}", 0, 0, NULL);
- a = g_regex_split (re, script->priv->command, 0);
- for (i = 0, n = 0; a[i] != NULL; i++)
- if ((i > 0) && (i % 2 == 0))
- n++;
- if (n == 0)
- return NULL;
-
- b = g_new (char *, n + 1);
- for (i = 1, j = 0; a[i] != NULL; i += 2, j++) {
- b[j] = g_strstrip (a[i]);
+ GString *result;
+ char *attributes;
+
+ result = g_string_new ("");
+ _g_template_for_each_token (script->priv->command,
+ TEMPLATE_FLAGS_NO_ENUMERATOR,
+ collect_attributes_cb,
+ result);
+
+ if (result->str[0] == 0) {
+ attributes = NULL;
+ g_string_free (result, TRUE);
}
- b[j] = NULL;
- attributes = g_strjoinv (",", b);
-
- g_free (b);
- g_strfreev (a);
- g_regex_unref (re);
+ else
+ attributes = g_string_free (result, FALSE);
return attributes;
}
@@ -470,17 +482,21 @@ gth_script_get_requested_attributes (GthScript *script)
typedef struct {
- GtkWindow *parent;
- GthScript *script;
- GList *file_list;
- GError *error;
- gboolean quote_values;
- GList *asked_values;
- GList *last_asked_value;
- GtkBuilder *builder;
- GthThumbLoader *thumb_loader;
- GtkCallback dialog_callback;
- gpointer user_data;
+ GList *file_list;
+ GError *error;
+ GList *asked_values;
+ GList *last_asked_value;
+} EvalData;
+
+
+typedef struct {
+ EvalData eval_data;
+ GtkWindow *parent;
+ GthScript *script;
+ GtkBuilder *builder;
+ GthThumbLoader *thumb_loader;
+ GtkCallback dialog_callback;
+ gpointer user_data;
} CommandLineData;
@@ -527,42 +543,37 @@ command_line_data_free (CommandLineData *command_data)
{
_g_object_unref (command_data->thumb_loader);
_g_object_unref (command_data->builder);
- g_list_free_full (command_data->asked_values, (GDestroyNotify) asked_value_free);
- _g_object_list_unref (command_data->file_list);
+ g_list_free_full (command_data->eval_data.asked_values, (GDestroyNotify) asked_value_free);
+ _g_object_list_unref (command_data->eval_data.file_list);
g_object_unref (command_data->script);
g_free (command_data);
}
-static char *
-create_file_list (GList *file_list,
- GetFileDataValueFunc func,
- gboolean quote_value)
+static void
+_append_file_list (GString *str,
+ GList *file_list,
+ GetFileDataValueFunc func,
+ gboolean quote_value)
{
- GString *s;
- GList *scan;
+ GList *scan;
- s = g_string_new ("");
for (scan = file_list; scan; scan = scan->next) {
GthFileData *file_data = scan->data;
char *value;
char *quoted;
value = func (file_data);
- if (quote_value)
- quoted = g_shell_quote (value);
- else
- quoted = g_strdup (value);
- g_string_append (s, quoted);
+ quoted = quote_value ? g_shell_quote (value) : g_strdup (value);
+ g_string_append (str, quoted);
+
if (scan->next != NULL)
- g_string_append (s, " ");
+ g_string_append_c (str, ' ');
g_free (quoted);
g_free (value);
}
-
- return g_string_free (s, FALSE);
}
@@ -632,51 +643,39 @@ get_parent_func (GthFileData *file_data)
}
-static void
-thumb_loader_ready_cb (GObject *source_object,
- GAsyncResult *result,
- gpointer user_data)
+static char *
+_get_timestamp (const char *format,
+ gboolean quote_value)
{
- CommandLineData *command_data = user_data;
- cairo_surface_t *image;
+ GDateTime *now;
+ char *str;
- if (gth_thumb_loader_load_finish (GTH_THUMB_LOADER (source_object),
- result,
- &image,
- NULL))
- {
- gtk_image_set_from_surface (GTK_IMAGE (_gtk_builder_get_widget (command_data->builder,
"request_image")), image);
- cairo_surface_destroy (image);
+ now = g_date_time_new_now_local ();
+ str = g_date_time_format (now, (format != NULL) ? format : DEFAULT_STRFTIME_FORMAT);
+ if (quote_value) {
+ char *tmp = str;
+ str = g_shell_quote (tmp);
+ g_free (tmp);
}
+ g_date_time_unref (now);
- g_object_unref (command_data->builder);
+ return str;
}
-static char *
-create_attribute_list (GList *file_list,
- char *match,
- gboolean quote_value)
+static void
+_append_attribute_list (GString *str,
+ GList *file_list,
+ char *attribute,
+ gboolean quote_value)
{
- GRegex *re;
- char **a;
- char *attribute = NULL;
- gboolean first_value = TRUE;
- GString *s;
- GList *scan;
-
- re = g_regex_new ("%attr{([^}]+)}", 0, 0, NULL);
- a = g_regex_split (re, match, 0);
- if (g_strv_length (a) >= 2)
- attribute = g_strstrip (a[1]);
-
- if (attribute == NULL) {
- g_strfreev (a);
- g_regex_unref (re);
- return NULL;
- }
+ gboolean first_value;
+ GList *scan;
- s = g_string_new ("");
+ if (attribute == NULL)
+ return;
+
+ first_value = TRUE;
for (scan = file_list; scan; scan = scan->next) {
GthFileData *file_data = scan->data;
char *value;
@@ -686,243 +685,148 @@ create_attribute_list (GList *file_list,
if (value == NULL)
continue;
- if (value != NULL) {
- char *tmp_value;
+ if (! first_value) {
+ g_string_append_c (str, ' ');
+ first_value = FALSE;
+ }
- tmp_value = _g_utf8_replace_pattern (value, "[\r\n]", " ");
+ if (value != NULL) {
+ char *tmp = _g_utf8_replace_pattern (value, "[\r\n]", " ");
g_free (value);
- value = tmp_value;
+ value = tmp;
}
- if (quote_value)
- quoted = g_shell_quote (value);
- else
- quoted = g_strdup (value);
-
- if (! first_value)
- g_string_append (s, " ");
- g_string_append (s, quoted);
-
- first_value = FALSE;
+ quoted = quote_value ? g_shell_quote (value) : g_strdup (value);
+ g_string_append (str, quoted);
g_free (quoted);
g_free (value);
}
-
- g_strfreev (a);
- g_regex_unref (re);
-
- return g_string_free (s, FALSE);
}
-static char *
-get_timestamp (void)
+static gboolean
+eval_template_cb (TemplateFlags flags,
+ gunichar parent_code,
+ gunichar code,
+ char **args,
+ GString *result,
+ gpointer user_data)
{
- GDateTime *now;
- char *str;
+ EvalData *eval_data = user_data;
+ gboolean preview;
+ gboolean quote_values;
+ gboolean highlight;
+ char *text;
+
+ if (parent_code == GTH_SCRIPT_CODE_TIMESTAMP) {
+ /* strftime code, return the code itself. */
+ _g_string_append_template_code (result, code, args);
+ return FALSE;
+ }
- now = g_date_time_new_now_local ();
- str = g_date_time_format (now, "%Y-%m-%d %H.%M.%S");
+ preview = (flags & TEMPLATE_FLAGS_PREVIEW) != 0;
+ quote_values = ((flags & TEMPLATE_FLAGS_PARTIAL) == 0) && (parent_code == 0);
+ highlight = preview && (code != 0) && (parent_code == 0);
+ text = NULL;
- g_date_time_unref (now);
+ if (highlight)
+ g_string_append (result, "<span foreground=\"#4696f8\">");
- return str;
-}
+ switch (code) {
+ case GTH_SCRIPT_CODE_URI: /* File URI */
+ _append_file_list (result, eval_data->file_list, get_uri_func, quote_values);
+ break;
+ case GTH_SCRIPT_CODE_PATH: /* File path */
+ _append_file_list (result, eval_data->file_list, get_filename_func, quote_values);
+ break;
-static gboolean
-command_line_eval_cb (const GMatchInfo *info,
- GString *res,
- gpointer data)
-{
- CommandLineData *command_data = data;
- char *r = NULL;
- char *match;
-
- match = g_match_info_fetch (info, 0);
- if (strcmp (match, "%U") == 0)
- r = create_file_list (command_data->file_list, get_uri_func, command_data->quote_values);
- else if (strcmp (match, "%F") == 0)
- r = create_file_list (command_data->file_list, get_filename_func, command_data->quote_values);
- else if (strcmp (match, "%B") == 0)
- r = create_file_list (command_data->file_list, get_basename_func, command_data->quote_values);
- else if (strcmp (match, "%N") == 0)
- r = create_file_list (command_data->file_list, get_basename_wo_ext_func,
command_data->quote_values);
- else if (strcmp (match, "%E") == 0)
- r = create_file_list (command_data->file_list, get_ext_func, command_data->quote_values);
- else if (strcmp (match, "%P") == 0)
- r = create_file_list (command_data->file_list, get_parent_func, command_data->quote_values);
- else if (strcmp (match, "%T") == 0)
- r = get_timestamp ();
- else if (strncmp (match, "%attr", 5) == 0) {
- r = create_attribute_list (command_data->file_list, match, command_data->quote_values);
- if ((r == NULL) && (command_data->error == NULL))
- command_data->error = g_error_new_literal (GTH_TASK_ERROR, GTH_TASK_ERROR_FAILED,
_("Malformed command"));
- }
- else if (strncmp (match, "%ask", 4) == 0) {
- if (command_data->last_asked_value != NULL) {
- AskedValue *asked_value = command_data->last_asked_value->data;
- r = g_strdup (asked_value->value);
- command_data->last_asked_value = command_data->last_asked_value->next;
- }
- if ((r != NULL) && command_data->quote_values) {
- char *q;
+ case GTH_SCRIPT_CODE_BASENAME: /* File basename */
+ _append_file_list (result, eval_data->file_list, get_basename_func, quote_values);
+ break;
- q = g_shell_quote (r);
- g_free (r);
- r = q;
- }
- }
+ case GTH_SCRIPT_CODE_BASENAME_NO_EXTENSION: /* File basename, no extension */
+ _append_file_list (result, eval_data->file_list, get_basename_wo_ext_func, quote_values);
+ break;
- if (r != NULL)
- g_string_append (res, r);
+ case GTH_SCRIPT_CODE_EXTENSION: /* File extension */
+ _append_file_list (result, eval_data->file_list, get_ext_func, quote_values);
+ break;
- g_free (r);
- g_free (match);
+ case GTH_SCRIPT_CODE_PARENT_PATH: /* Parent path */
+ _append_file_list (result, eval_data->file_list, get_parent_func, quote_values);
+ break;
- return FALSE;
-}
+ case GTH_SCRIPT_CODE_TIMESTAMP: /* Timestamp */
+ text = _get_timestamp (args[0], quote_values);
+ break;
+ case GTH_SCRIPT_CODE_ASK_VALUE: /* Ask value */
+ if (preview) {
+ if ((args[0] != NULL) && ! _g_utf8_all_spaces (args[1]))
+ g_string_append (result, args[1]);
+ else if (! _g_utf8_all_spaces (args[0]))
+ _g_string_append_markup_escaped (result, "{ %s }", args[0]);
+ else
+ g_string_append_unichar (result, code);
+ }
+ else if (eval_data->last_asked_value != NULL) {
+ AskedValue *asked_value;
-static const char *
-_g_utf8_find_matching_bracket (const char *string,
- const char *open_bracket,
- const char *closed_bracket)
-{
- const char *s;
- gsize i;
- gsize string_len = g_utf8_strlen (string, -1);
- int n_open_brackets = 1;
-
- s = string;
- for (i = 0; i <= string_len - 1; i++) {
- if (strncmp (s, open_bracket, 1) == 0)
- n_open_brackets++;
- else if (strncmp (s, closed_bracket, 1) == 0)
- n_open_brackets--;
- if (n_open_brackets == 0)
- return s;
- s = g_utf8_next_char(s);
- }
+ asked_value = eval_data->last_asked_value->data;
+ text = quote_values ? g_shell_quote (asked_value->value) : g_strdup
(asked_value->value);
+ eval_data->last_asked_value = eval_data->last_asked_value->next;
+ }
+ break;
- return NULL;
-}
+ case GTH_SCRIPT_CODE_FILE_ATTRIBUTE: /* File attribute */
+ if (preview)
+ g_string_append_printf (result, "{ %s }", args[0]);
+ else
+ _append_attribute_list (result, eval_data->file_list, args[0], quote_values);
+ break;
+ case GTH_SCRIPT_CODE_QUOTE: /* Quote text. */
+ if (args[0] != NULL)
+ text = g_shell_quote (args[0]);
+ break;
-static char **
-_split_command_for_quotation (char *string)
-{
- const char *delimiter = "%quote{";
- char **str_array;
- const char *s;
- const char *remainder;
- GSList *string_list = NULL, *slist;
- int n;
-
- remainder = string;
- s = _g_utf8_find_str (remainder, delimiter);
- if (s != NULL) {
- gsize delimiter_size = strlen (delimiter);
-
- while (s != NULL) {
- gsize size = s - remainder;
- char *new_string;
-
- new_string = g_new (char, size + 1);
- strncpy (new_string, remainder, size);
- new_string[size] = 0;
-
- string_list = g_slist_prepend (string_list, new_string);
-
- /* search the matching bracket */
- remainder = s + delimiter_size;
- s = _g_utf8_find_matching_bracket (remainder, "{", "}");
- if (s != NULL) {
- size = s - remainder;
- new_string = g_new (char, size + 1);
- strncpy (new_string, remainder, size);
- new_string[size] = 0;
- string_list = g_slist_prepend (string_list, new_string);
-
- remainder = s + 1 /* strlen("}") */;
- s = _g_utf8_find_str (remainder, delimiter);
- }
- }
+ default:
+ /* Code not recognized, return the code itself. */
+ _g_string_append_template_code (result, code, args);
+ break;
}
- if ((remainder != NULL) && (*remainder != 0))
- string_list = g_slist_prepend (string_list, g_strdup (remainder));
-
- n = g_slist_length (string_list);
- str_array = g_new (char*, n + 1);
- str_array[n--] = NULL;
- for (slist = string_list; slist; slist = slist->next)
- str_array[n--] = slist->data;
+ if (text != NULL) {
+ g_string_append (result, text);
+ g_free (text);
+ }
- g_slist_free (string_list);
+ if (highlight)
+ g_string_append (result, "</span>");
- return str_array;
+ return (eval_data->error != NULL);
}
static void
_gth_script_get_command_line (GTask *task)
{
- CommandLineData *command_data;
- GRegex *re;
- GString *command_line;
- char **a;
- int i;
- char *result;
+ CommandLineData *command_data;
+ char *result;
command_data = g_task_get_task_data (task);
+ command_data->eval_data.last_asked_value = command_data->eval_data.asked_values;
+ command_data->eval_data.error = NULL;
- /* replace the parameters in the command line */
-
- re = g_regex_new ("%U|%F|%B|%N|%E|%P|%T|%ask({[^}]+}({[^}]+})?)?|%attr{[^}]+}", 0, 0, NULL);
-
- command_data->quote_values = FALSE;
- command_data->last_asked_value = command_data->asked_values;
- command_line = g_string_new ("");
- a = _split_command_for_quotation (command_data->script->priv->command);
- for (i = 0; a[i] != NULL; i++) {
- if ((i % 2) == 1) { /* the quote content */
- char *sub_result;
-
- sub_result = g_regex_replace_eval (re, a[i], -1, 0, 0, command_line_eval_cb,
command_data, NULL);
- if (command_data->error == NULL) {
- char *quoted;
-
- quoted = g_shell_quote (g_strstrip (sub_result));
- g_string_append (command_line, quoted);
+ result = _g_template_eval (command_data->script->priv->command,
+ TEMPLATE_FLAGS_NO_ENUMERATOR,
+ eval_template_cb,
+ &command_data->eval_data);
- g_free (quoted);
- }
-
- g_free (sub_result);
-
- if (command_data->error != NULL)
- break;
- }
- else
- g_string_append (command_line, a[i]);
- }
-
- if (command_data->error == NULL) {
- command_data->quote_values = TRUE;
- command_data->last_asked_value = command_data->asked_values;
- result = g_regex_replace_eval (re, command_line->str, -1, 0, 0, command_line_eval_cb,
command_data, NULL);
- }
- else
- result = NULL;
-
- g_strfreev (a);
- g_string_free (command_line, TRUE);
- g_regex_unref (re);
-
- if (command_data->error != NULL) {
+ if (command_data->eval_data.error != NULL) {
g_free (result);
- g_task_return_error (task, command_data->error);
+ g_task_return_error (task, command_data->eval_data.error);
}
else
g_task_return_pointer (task, result, g_free);
@@ -953,7 +857,7 @@ ask_values_dialog_response_cb (GtkDialog *dialog,
else {
GList *scan;
- for (scan = command_data->asked_values; scan; scan = scan->next) {
+ for (scan = command_data->eval_data.asked_values; scan; scan = scan->next) {
AskedValue *asked_value = scan->data;
g_free (asked_value->value);
@@ -967,6 +871,58 @@ ask_values_dialog_response_cb (GtkDialog *dialog,
}
+static void
+thumb_loader_ready_cb (GObject *source_object,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ CommandLineData *command_data = user_data;
+ cairo_surface_t *image;
+
+ if (gth_thumb_loader_load_finish (GTH_THUMB_LOADER (source_object),
+ result,
+ &image,
+ NULL))
+ {
+ gtk_image_set_from_surface (GTK_IMAGE (_gtk_builder_get_widget (command_data->builder,
"request_image")), image);
+ cairo_surface_destroy (image);
+ }
+
+ g_object_unref (command_data->builder);
+}
+
+
+/* -- gth_script_get_command_line_async -- */
+
+
+typedef struct {
+ CommandLineData *command_data;
+ int n;
+} CollectValuesData;
+
+
+static gboolean
+collect_asked_values_cb (gunichar parent_code,
+ gunichar code,
+ char **args,
+ gpointer user_data)
+{
+ CollectValuesData *collect_data = user_data;
+ CommandLineData *command_data = collect_data->command_data;
+ AskedValue *asked_value;
+
+ if (code != GTH_SCRIPT_CODE_ASK_VALUE)
+ return FALSE;
+
+ asked_value = asked_value_new (collect_data->n++);
+ asked_value->prompt = _g_utf8_strip (args[0]);
+ asked_value->default_value = _g_utf8_strip (args[1]);
+ command_data->eval_data.asked_values = g_list_prepend (command_data->eval_data.asked_values,
asked_value);
+
+ return FALSE;
+}
+
+
void
gth_script_get_command_line_async (GthScript *script,
GtkWindow *parent,
@@ -977,80 +933,39 @@ gth_script_get_command_line_async (GthScript *script,
GAsyncReadyCallback callback,
gpointer user_data)
{
- CommandLineData *command_data;
- GTask *task;
- GRegex *re;
- GthFileData *file_data;
- GtkWidget *dialog;
+ CommandLineData *command_data;
+ GTask *task;
+ CollectValuesData collect_data;
+ GthFileData *file_data;
+ GtkWidget *dialog;
command_data = g_new0 (CommandLineData, 1);
command_data->script = g_object_ref (script);
command_data->parent = parent;
- command_data->file_list = _g_object_list_ref (file_list);
- command_data->error = NULL;
command_data->dialog_callback = dialog_callback;
command_data->user_data = user_data;
+ command_data->eval_data.file_list = _g_object_list_ref (file_list);
+ command_data->eval_data.error = NULL;
task = g_task_new (script, cancellable, callback, user_data);
g_task_set_task_data (task, command_data, (GDestroyNotify) command_line_data_free);
/* collect the values to ask to the user */
- command_data->asked_values = NULL;
- re = g_regex_new ("(%ask)({[^}]+})?({[^}]+})?", 0, 0, NULL);
- if (re != NULL) {
- GRegex *param_re;
- char **a;
- int i;
-
- param_re = g_regex_new ("{([^}]+)}", 0, 0, NULL);
- a = g_regex_split (re, script->priv->command, 0);
- for (i = 0; a[i] != NULL; i++) {
- if (g_strcmp0 (a[i], "%ask") == 0) {
- AskedValue *asked_value;
- GMatchInfo *match_info = NULL;
- int n_param = 0;
-
- asked_value = asked_value_new (n_param);
- i++;
- while ((n_param < 2) && (a[i] != NULL) && g_regex_match (param_re, a[i], 0,
&match_info)) {
- char *value;
-
- value = g_match_info_fetch (match_info, 1);
- n_param++;
-
- if (n_param == 1) {
- g_free (asked_value->prompt);
- asked_value->prompt = _g_utf8_strip (value);
- }
- else if (n_param == 2)
- asked_value->default_value = _g_utf8_strip (value);
- else
- g_assert_not_reached ();
-
- g_free (value);
- g_match_info_free (match_info);
- match_info = NULL;
- i++;
- }
- command_data->asked_values = g_list_prepend (command_data->asked_values,
asked_value);
-
- g_match_info_free (match_info);
- }
- }
-
- g_strfreev (a);
- g_regex_unref (param_re);
- g_regex_unref (re);
- }
+ collect_data.command_data = command_data;
+ collect_data.n = 0;
+ _g_template_for_each_token (script->priv->command,
+ TEMPLATE_FLAGS_NO_ENUMERATOR,
+ collect_asked_values_cb,
+ &collect_data);
- if (command_data->asked_values == NULL) {
+ if (command_data->eval_data.asked_values == NULL) {
/* No values to ask to the user. */
_gth_script_get_command_line (task);
return;
}
- command_data->asked_values = g_list_reverse (command_data->asked_values);
+ command_data->eval_data.asked_values = g_list_reverse (command_data->eval_data.asked_values);
command_data->builder = gtk_builder_new_from_resource
("/org/gnome/gThumb/list_tools/data/ui/ask-values.ui");
dialog = g_object_new (GTK_TYPE_DIALOG,
@@ -1075,7 +990,7 @@ gth_script_get_command_line_async (GthScript *script,
gtk_label_set_text (GTK_LABEL (_gtk_builder_get_widget (command_data->builder, "title_label")),
gth_script_get_display_name (command_data->script));
- file_data = (GthFileData *) command_data->file_list->data;
+ file_data = (GthFileData *) command_data->eval_data.file_list->data;
gtk_label_set_text (GTK_LABEL (_gtk_builder_get_widget (command_data->builder, "filename_label")),
g_file_info_get_display_name (file_data->info));
@@ -1083,7 +998,7 @@ gth_script_get_command_line_async (GthScript *script,
GtkWidget *prompts = _gtk_builder_get_widget (command_data->builder, "prompts");
GList *scan;
- for (scan = command_data->asked_values; scan; scan = scan->next) {
+ for (scan = command_data->eval_data.asked_values; scan; scan = scan->next) {
AskedValue *asked_value = scan->data;
GtkWidget *label;
GtkWidget *entry;
@@ -1159,3 +1074,34 @@ gth_script_create_shortcut (GthScript *self)
return shortcut;
}
+
+
+/* -- gth_script_get_preview -- */
+
+
+#define PREVIEW_URI "file:///home/user/images/filename.jpeg"
+
+
+char *
+gth_script_get_preview (const char *template,
+ TemplateFlags flags)
+{
+ EvalData preview_data;
+ char *result;
+
+ preview_data.file_list = g_list_append (NULL,
+ gth_file_data_new_for_uri (PREVIEW_URI, NULL));
+
+ preview_data.error = NULL;
+ preview_data.asked_values = NULL;
+ preview_data.last_asked_value = NULL;
+
+ result = _g_template_eval (template,
+ flags | TEMPLATE_FLAGS_NO_ENUMERATOR | TEMPLATE_FLAGS_PREVIEW,
+ eval_template_cb,
+ &preview_data);
+
+ _g_object_list_unref (preview_data.file_list);
+
+ return result;
+}
diff --git a/extensions/list_tools/gth-script.h b/extensions/list_tools/gth-script.h
index 193cbf3e..9fb2a109 100644
--- a/extensions/list_tools/gth-script.h
+++ b/extensions/list_tools/gth-script.h
@@ -27,6 +27,17 @@
G_BEGIN_DECLS
+#define GTH_SCRIPT_CODE_URI 'U'
+#define GTH_SCRIPT_CODE_PATH 'F'
+#define GTH_SCRIPT_CODE_BASENAME 'B'
+#define GTH_SCRIPT_CODE_BASENAME_NO_EXTENSION 'N'
+#define GTH_SCRIPT_CODE_EXTENSION 'E'
+#define GTH_SCRIPT_CODE_PARENT_PATH 'P'
+#define GTH_SCRIPT_CODE_TIMESTAMP 'T'
+#define GTH_SCRIPT_CODE_ASK_VALUE '?'
+#define GTH_SCRIPT_CODE_FILE_ATTRIBUTE 'A'
+#define GTH_SCRIPT_CODE_QUOTE 'Q'
+
#define GTH_TYPE_SCRIPT (gth_script_get_type ())
#define GTH_SCRIPT(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTH_TYPE_SCRIPT, GthScript))
#define GTH_SCRIPT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), GTH_TYPE_SCRIPT, GthScriptClass))
@@ -74,6 +85,8 @@ char * gth_script_get_command_line_finish (GthScript *script,
GError **error);
const char * gth_script_get_accelerator (GthScript *script);
GthShortcut * gth_script_create_shortcut (GthScript *script);
+char * gth_script_get_preview (const char *tmpl,
+ TemplateFlags flags);
G_END_DECLS
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