gatuno-terminal/src/terminal-search-dialog.c

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/*
* Copyright © 2005 Paolo Maggi
* Copyright © 2010 Red Hat (Red Hat author: Behdad Esfahbod)
*
* 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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
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*/
#include "config.h"
#include <string.h>
#include "terminal-search-dialog.h"
#include "terminal-util.h"
#define HISTORY_MIN_ITEM_LEN 3
#define HISTORY_LENGTH 10
static GQuark
get_quark (void)
{
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static GQuark quark = 0;
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if (G_UNLIKELY (!quark))
quark = g_quark_from_static_string ("GT:data");
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return quark;
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}
#define TERMINAL_SEARCH_DIALOG_GET_PRIVATE(object) \
((TerminalSearchDialogPrivate *) g_object_get_qdata (G_OBJECT (object), get_quark ()))
#define GET_FLAG(widget) gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->widget))
typedef struct _TerminalSearchDialogPrivate
{
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GtkWidget *search_label;
GtkWidget *search_entry;
GtkWidget *search_text_entry;
GtkWidget *match_case_checkbutton;
GtkWidget *entire_word_checkbutton;
GtkWidget *regex_checkbutton;
GtkWidget *backwards_checkbutton;
GtkWidget *wrap_around_checkbutton;
GtkListStore *store;
GtkEntryCompletion *completion;
/* Cached regex */
GRegex *regex;
GRegexCompileFlags regex_compile_flags;
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} TerminalSearchDialogPrivate;
static void update_sensitivity (void *unused,
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GtkWidget *dialog);
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static void response_handler (GtkWidget *dialog,
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gint response_id,
gpointer data);
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static void terminal_search_dialog_private_destroy (TerminalSearchDialogPrivate *priv);
GtkWidget *
terminal_search_dialog_new (GtkWindow *parent)
{
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GtkWidget *dialog;
TerminalSearchDialogPrivate *priv;
GtkListStore *store;
GtkEntryCompletion *completion;
priv = g_new0 (TerminalSearchDialogPrivate, 1);
if (!terminal_util_load_builder_file ("find-dialog.ui",
"find-dialog", &dialog,
"search-label", &priv->search_label,
"search-entry", &priv->search_entry,
"match-case-checkbutton", &priv->match_case_checkbutton,
"entire-word-checkbutton", &priv->entire_word_checkbutton,
"regex-checkbutton", &priv->regex_checkbutton,
"search-backwards-checkbutton", &priv->backwards_checkbutton,
"wrap-around-checkbutton", &priv->wrap_around_checkbutton,
NULL))
{
g_free (priv);
return NULL;
}
g_object_set_qdata_full (G_OBJECT (dialog), get_quark (), priv,
(GDestroyNotify) terminal_search_dialog_private_destroy);
priv->search_text_entry = gtk_bin_get_child (GTK_BIN (priv->search_entry));
gtk_widget_set_size_request (priv->search_entry, 300, -1);
priv->store = store = gtk_list_store_new (1, G_TYPE_STRING);
g_object_set (G_OBJECT (priv->search_entry),
"model", store,
"text-column", 0,
NULL);
priv->completion = completion = gtk_entry_completion_new ();
gtk_entry_completion_set_model (completion, GTK_TREE_MODEL (store));
gtk_entry_completion_set_text_column (completion, 0);
gtk_entry_completion_set_minimum_key_length (completion, HISTORY_MIN_ITEM_LEN);
gtk_entry_completion_set_popup_completion (completion, FALSE);
gtk_entry_completion_set_inline_completion (completion, TRUE);
gtk_entry_set_completion (GTK_ENTRY (priv->search_text_entry), completion);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT, FALSE);
gtk_entry_set_activates_default (GTK_ENTRY (priv->search_text_entry), TRUE);
g_signal_connect (priv->search_text_entry, "changed", G_CALLBACK (update_sensitivity), dialog);
g_signal_connect (priv->regex_checkbutton, "toggled", G_CALLBACK (update_sensitivity), dialog);
g_signal_connect (dialog, "response", G_CALLBACK (response_handler), NULL);
if (parent)
gtk_window_set_transient_for (GTK_WINDOW (dialog), parent);
return GTK_WIDGET (dialog);
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}
void
terminal_search_dialog_present (GtkWidget *dialog)
{
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TerminalSearchDialogPrivate *priv;
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g_return_if_fail (GTK_IS_DIALOG (dialog));
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priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
g_return_if_fail (priv);
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gtk_window_present (GTK_WINDOW (dialog));
gtk_widget_grab_focus (priv->search_text_entry);
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}
static void
terminal_search_dialog_private_destroy (TerminalSearchDialogPrivate *priv)
{
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if (priv->regex)
g_regex_unref (priv->regex);
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g_object_unref (priv->store);
g_object_unref (priv->completion);
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g_free (priv);
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}
static void
update_sensitivity (void *unused, GtkWidget *dialog)
{
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TerminalSearchDialogPrivate *priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
const gchar *search_string;
gboolean valid;
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if (priv->regex)
{
g_regex_unref (priv->regex);
priv->regex = NULL;
}
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search_string = gtk_entry_get_text (GTK_ENTRY (priv->search_text_entry));
g_return_if_fail (search_string != NULL);
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valid = *search_string != '\0';
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if (valid && GET_FLAG (regex_checkbutton))
{
/* Check that the regex is valid */
valid = NULL != terminal_search_dialog_get_regex (dialog);
/* TODO show the error message somewhere */
}
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gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT, valid);
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}
static gboolean
remove_item (GtkListStore *store,
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const gchar *text)
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{
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GtkTreeIter iter;
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g_return_val_if_fail (text != NULL, FALSE);
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if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (store), &iter))
return FALSE;
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do
{
gchar *item_text;
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gtk_tree_model_get (GTK_TREE_MODEL (store), &iter, 0, &item_text, -1);
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if (item_text != NULL && strcmp (item_text, text) == 0)
{
gtk_list_store_remove (store, &iter);
g_free (item_text);
return TRUE;
}
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g_free (item_text);
}
while (gtk_tree_model_iter_next (GTK_TREE_MODEL (store), &iter));
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return FALSE;
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}
static void
clamp_list_store (GtkListStore *store,
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guint max)
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{
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GtkTreePath *path;
GtkTreeIter iter;
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/* -1 because TreePath counts from 0 */
path = gtk_tree_path_new_from_indices (max - 1, -1);
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if (gtk_tree_model_get_iter (GTK_TREE_MODEL (store), &iter, path))
while (1)
if (!gtk_list_store_remove (store, &iter))
break;
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gtk_tree_path_free (path);
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}
static void
history_entry_insert (GtkListStore *store,
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const gchar *text)
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{
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GtkTreeIter iter;
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g_return_if_fail (text != NULL);
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if (g_utf8_strlen (text, -1) <= HISTORY_MIN_ITEM_LEN)
return;
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/* remove the text from the store if it was already
* present. If it wasn't, clamp to max history - 1
* before inserting the new row, otherwise appending
* would not work */
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if (!remove_item (store, text))
clamp_list_store (store, HISTORY_LENGTH - 1);
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gtk_list_store_insert (store, &iter, 0);
gtk_list_store_set (store, &iter, 0, text, -1);
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}
static void
response_handler (GtkWidget *dialog,
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gint response_id,
gpointer data)
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{
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TerminalSearchDialogPrivate *priv;
const gchar *str;
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if (response_id != GTK_RESPONSE_ACCEPT)
{
gtk_widget_hide (dialog);
return;
}
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priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
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str = gtk_entry_get_text (GTK_ENTRY (priv->search_text_entry));
if (*str != '\0')
history_entry_insert (priv->store, str);
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}
void
terminal_search_dialog_set_search_text (GtkWidget *dialog,
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const gchar *text)
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{
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TerminalSearchDialogPrivate *priv;
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g_return_if_fail (GTK_IS_DIALOG (dialog));
g_return_if_fail (text != NULL);
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priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
g_return_if_fail (priv);
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gtk_entry_set_text (GTK_ENTRY (priv->search_text_entry), text);
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gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog),
GTK_RESPONSE_ACCEPT,
(*text != '\0'));
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}
const gchar *
terminal_search_dialog_get_search_text (GtkWidget *dialog)
{
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TerminalSearchDialogPrivate *priv;
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g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
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priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
g_return_val_if_fail (priv, NULL);
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return gtk_entry_get_text (GTK_ENTRY (priv->search_text_entry));
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}
TerminalSearchFlags
terminal_search_dialog_get_search_flags (GtkWidget *dialog)
{
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TerminalSearchDialogPrivate *priv;
TerminalSearchFlags flags = 0;
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g_return_val_if_fail (GTK_IS_DIALOG (dialog), flags);
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priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
g_return_val_if_fail (priv, flags);
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if (GET_FLAG (backwards_checkbutton))
flags |= TERMINAL_SEARCH_FLAG_BACKWARDS;
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if (GET_FLAG (wrap_around_checkbutton))
flags |= TERMINAL_SEARCH_FLAG_WRAP_AROUND;
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return flags;
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}
GRegex *
terminal_search_dialog_get_regex (GtkWidget *dialog)
{
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TerminalSearchDialogPrivate *priv;
GRegexCompileFlags compile_flags;
const char *text, *pattern;
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g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
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priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog);
g_return_val_if_fail (priv, NULL);
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pattern = text = terminal_search_dialog_get_search_text (dialog);
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compile_flags = G_REGEX_OPTIMIZE;
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if (!GET_FLAG (match_case_checkbutton))
compile_flags |= G_REGEX_CASELESS;
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if (GET_FLAG (regex_checkbutton))
compile_flags |= G_REGEX_MULTILINE;
else
pattern = g_regex_escape_string (text, -1);
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if (GET_FLAG (entire_word_checkbutton))
{
const char *old_pattern = pattern;
pattern = g_strdup_printf ("\\b%s\\b", pattern);
if (old_pattern != text)
g_free ((char *) old_pattern);
}
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if (!priv->regex || priv->regex_compile_flags != compile_flags)
{
priv->regex_compile_flags = compile_flags;
if (priv->regex)
g_regex_unref (priv->regex);
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/* TODO Error handling */
priv->regex = g_regex_new (pattern, compile_flags, 0, NULL);
}
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if (pattern != text)
g_free ((char *) pattern);
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return priv->regex;
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}