PIKApp/app/dialogs/action-search-dialog.c

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2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* action-search-dialog.c
* Copyright (C) 2012-2013 Srihari Sriraman
* Suhas V
* Vidyashree K
* Zeeshan Ali Ansari
* Copyright (C) 2013-2015 Jehan <jehan at girinstud.io>
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "dialogs-types.h"
#include "config/pikaguiconfig.h"
#include "core/pika.h"
#include "widgets/pikaaction.h"
#include "widgets/pikaactiongroup.h"
#include "widgets/pikaaction-history.h"
#include "widgets/pikadialogfactory.h"
#include "widgets/pikasearchpopup.h"
#include "action-search-dialog.h"
#include "pika-intl.h"
#define ACTION_SECTION_INACTIVE 7
static void action_search_history_and_actions (PikaSearchPopup *popup,
const gchar *keyword,
gpointer data);
static gboolean action_search_match_keyword (PikaAction *action,
const gchar* keyword,
gint *section,
Pika *pika);
/* Public Functions */
GtkWidget *
action_search_dialog_create (Pika *pika)
{
GtkWidget *dialog;
dialog = pika_search_popup_new (pika,
"pika-action-search-dialog",
_("Search Actions"),
action_search_history_and_actions,
pika);
return dialog;
}
/* Private Functions */
static void
action_search_history_and_actions (PikaSearchPopup *popup,
const gchar *keyword,
gpointer data)
{
gchar **actions;
GList *list;
GList *history_actions = NULL;
Pika *pika;
g_return_if_fail (PIKA_IS_PIKA (data));
pika = PIKA (data);
if (g_strcmp0 (keyword, "") == 0)
return;
history_actions = pika_action_history_search (pika,
action_search_match_keyword,
keyword);
/* 0. Top result: matching action in run history. */
for (list = history_actions; list; list = g_list_next (list))
pika_search_popup_add_result (popup, list->data,
pika_action_is_sensitive (list->data, NULL) ? 0 : ACTION_SECTION_INACTIVE);
/* 1. Then other matching actions. */
actions = g_action_group_list_actions (G_ACTION_GROUP (pika->app));
for (gint i = 0; actions[i] != NULL; i++)
{
GAction *action;
gint section;
/* The action search dialog doesn't show any non-historized
* actions, with a few exceptions. See the difference between
* pika_action_history_is_blacklisted_action() and
* pika_action_history_is_excluded_action().
*/
if (pika_action_history_is_blacklisted_action (actions[i]))
continue;
action = g_action_map_lookup_action (G_ACTION_MAP (pika->app), actions[i]);
g_return_if_fail (PIKA_IS_ACTION (action));
if (! pika_action_is_visible (PIKA_ACTION (action)))
continue;
if (action_search_match_keyword (PIKA_ACTION (action), keyword, &section, pika))
{
GList *redundant;
/* A matching action. Check if we have not already added
* it as an history action.
*/
for (redundant = history_actions; redundant; redundant = g_list_next (redundant))
if (strcmp (pika_action_get_name (redundant->data), actions[i]) == 0)
break;
if (redundant == NULL)
pika_search_popup_add_result (popup, PIKA_ACTION (action), section);
}
}
g_strfreev (actions);
g_list_free_full (history_actions, (GDestroyNotify) g_object_unref);
}
/**
* action_search_match_keyword:
* @action: a #PikaAction to be matched.
* @keyword: free text keyword to match with @action.
* @section: relative section telling "how well" @keyword matched
* @action. The smaller the @section, the better the match. In
* particular this value can be used in the call to
* pika_search_popup_add_result() to show best matches at the
* top of the list.
* @pika: the #Pika object. This matters because we will tokenize
* keywords, labels and tooltip by language.
*
* This function will check if some freely typed text @keyword matches
* @action's label or tooltip, using a few algorithms to determine the
* best matches (order of words, start of match, and so on).
* All text (the user-provided @keyword as well as @actions labels and
* tooltips) are unicoded normalized, tokenized and case-folded before
* being compared. Comparisons with ASCII alternatives are also
* performed, providing even better matches, depending on the user
* languages (accounting for variant orthography in natural languages).
*
* @section will be set to:
* - 0 for any @action if @keyword is %NULL (match all).
* - 1 for a full initialism.
* - 4 for a partial initialism.
* - 1 if key tokens are found in the same order in the label and match
* the start of the label.
* - 2 if key tokens are found in the label order but don't match the
* start of the label.
* - 3 if key tokens are found with a different order from label.
* - 5 if @keyword matches the tooltip.
* - 6 if @keyword is a mix-match on tooltip and label.
* In the end, @section is incremented by %ACTION_SECTION_INACTIVE if
* the action is non-sensitive.
*
* Returns: %TRUE is a match was successful (in which case, @section
* will be set as well).
*/
static gboolean
action_search_match_keyword (PikaAction *action,
const gchar *keyword,
gint *section,
Pika *pika)
{
gboolean matched = FALSE;
gchar **key_tokens;
gchar **label_tokens;
gchar **label_alternates = NULL;
gchar *tmp;
if (keyword == NULL)
{
/* As a special exception, a NULL keyword means any action
* matches.
*/
if (section)
*section = pika_action_is_sensitive (action, NULL) ? 0 : ACTION_SECTION_INACTIVE;
return TRUE;
}
key_tokens = g_str_tokenize_and_fold (keyword, pika->config->language, NULL);
tmp = pika_strip_uline (pika_action_get_label (action));
label_tokens = g_str_tokenize_and_fold (tmp, pika->config->language, &label_alternates);
g_free (tmp);
/* Try to match the keyword as an initialism of the action's label.
* For instance 'gb' will match 'Gaussian Blur...'
*/
if (g_strv_length (key_tokens) == 1)
{
gchar **search_tokens[] = {label_tokens, label_alternates};
gint i;
for (i = 0; i < G_N_ELEMENTS (search_tokens); i++)
{
const gchar *key_token;
gchar **label_tokens;
for (key_token = key_tokens[0], label_tokens = search_tokens[i];
*key_token && *label_tokens;
key_token = g_utf8_find_next_char (key_token, NULL), label_tokens++)
{
gunichar key_char = g_utf8_get_char (key_token);
gunichar label_char = g_utf8_get_char (*label_tokens);
if (key_char != label_char)
break;
}
if (! *key_token)
{
matched = TRUE;
if (section)
{
/* full match is better than a partial match */
*section = ! *label_tokens ? 1 : 4;
}
else
{
break;
}
}
}
}
if (! matched && g_strv_length (label_tokens) > 0)
{
gint previous_matched = -1;
gboolean match_start;
gboolean match_ordered;
gint i;
matched = TRUE;
match_start = TRUE;
match_ordered = TRUE;
for (i = 0; key_tokens[i] != NULL; i++)
{
gint j;
for (j = 0; label_tokens[j] != NULL; j++)
{
if (g_str_has_prefix (label_tokens[j], key_tokens[i]))
{
goto one_matched;
}
}
for (j = 0; label_alternates[j] != NULL; j++)
{
if (g_str_has_prefix (label_alternates[j], key_tokens[i]))
{
goto one_matched;
}
}
matched = FALSE;
one_matched:
if (previous_matched > j)
match_ordered = FALSE;
previous_matched = j;
if (i != j)
match_start = FALSE;
continue;
}
if (matched && section)
{
/* If the key is the label start, this is a nicer match.
* Then if key tokens are found in the same order in the label.
* Finally we show at the end if the key tokens are found with a different order. */
*section = match_ordered ? (match_start ? 1 : 2) : 3;
}
}
if (! matched && key_tokens[0] && g_utf8_strlen (key_tokens[0], -1) > 2 &&
pika_action_get_tooltip (action) != NULL)
{
gchar **tooltip_tokens;
gchar **tooltip_alternates = NULL;
gboolean mixed_match;
gint i;
tooltip_tokens = g_str_tokenize_and_fold (pika_action_get_tooltip (action),
pika->config->language, &tooltip_alternates);
if (g_strv_length (tooltip_tokens) > 0)
{
matched = TRUE;
mixed_match = FALSE;
for (i = 0; key_tokens[i] != NULL; i++)
{
gint j;
for (j = 0; tooltip_tokens[j] != NULL; j++)
{
if (g_str_has_prefix (tooltip_tokens[j], key_tokens[i]))
{
goto one_tooltip_matched;
}
}
for (j = 0; tooltip_alternates[j] != NULL; j++)
{
if (g_str_has_prefix (tooltip_alternates[j], key_tokens[i]))
{
goto one_tooltip_matched;
}
}
for (j = 0; label_tokens[j] != NULL; j++)
{
if (g_str_has_prefix (label_tokens[j], key_tokens[i]))
{
mixed_match = TRUE;
goto one_tooltip_matched;
}
}
for (j = 0; label_alternates[j] != NULL; j++)
{
if (g_str_has_prefix (label_alternates[j], key_tokens[i]))
{
mixed_match = TRUE;
goto one_tooltip_matched;
}
}
matched = FALSE;
one_tooltip_matched:
continue;
}
if (matched && section)
{
/* Matching the tooltip is section 5. We don't go looking
* for start of string or token order for tooltip match.
* But if the match is mixed on tooltip and label (there are
* no match for *only* label or *only* tooltip), this is
* section 6. */
*section = mixed_match ? 6 : 5;
}
}
g_strfreev (tooltip_tokens);
g_strfreev (tooltip_alternates);
}
g_strfreev (key_tokens);
g_strfreev (label_tokens);
g_strfreev (label_alternates);
if (matched && section && ! pika_action_is_sensitive (action, NULL))
*section += ACTION_SECTION_INACTIVE;
return matched;
}