diff options
Diffstat (limited to 'src/terminal-search-dialog.c')
| -rw-r--r-- | src/terminal-search-dialog.c | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/src/terminal-search-dialog.c b/src/terminal-search-dialog.c new file mode 100644 index 0000000..81e3317 --- /dev/null +++ b/src/terminal-search-dialog.c @@ -0,0 +1,378 @@ +/* + * 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 + * Foundation, Inc., 59 Temple Place, Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#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) +{ + static GQuark quark = 0; + + if (G_UNLIKELY (!quark)) + quark = g_quark_from_static_string ("GT:data"); + + return quark; +} + + +#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 +{ + 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; +} TerminalSearchDialogPrivate; + + +static void update_sensitivity (void *unused, + GtkWidget *dialog); +static void response_handler (GtkWidget *dialog, + gint response_id, + gpointer data); +static void terminal_search_dialog_private_destroy (TerminalSearchDialogPrivate *priv); + + +GtkWidget * +terminal_search_dialog_new (GtkWindow *parent) +{ + 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); +} + +void +terminal_search_dialog_present (GtkWidget *dialog) +{ + TerminalSearchDialogPrivate *priv; + + g_return_if_fail (GTK_IS_DIALOG (dialog)); + + priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + g_return_if_fail (priv); + + gtk_window_present (GTK_WINDOW (dialog)); + gtk_widget_grab_focus (priv->search_text_entry); +} + +static void +terminal_search_dialog_private_destroy (TerminalSearchDialogPrivate *priv) +{ + + if (priv->regex) + g_regex_unref (priv->regex); + + g_object_unref (priv->store); + g_object_unref (priv->completion); + + g_free (priv); +} + + +static void +update_sensitivity (void *unused, GtkWidget *dialog) +{ + TerminalSearchDialogPrivate *priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + const gchar *search_string; + gboolean valid; + + if (priv->regex) { + g_regex_unref (priv->regex); + priv->regex = NULL; + } + + search_string = gtk_entry_get_text (GTK_ENTRY (priv->search_text_entry)); + g_return_if_fail (search_string != NULL); + + valid = *search_string != '\0'; + + 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 */ + } + + gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT, valid); +} + +static gboolean +remove_item (GtkListStore *store, + const gchar *text) +{ + GtkTreeIter iter; + + g_return_val_if_fail (text != NULL, FALSE); + + if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (store), &iter)) + return FALSE; + + do { + gchar *item_text; + + gtk_tree_model_get (GTK_TREE_MODEL (store), &iter, 0, &item_text, -1); + + if (item_text != NULL && strcmp (item_text, text) == 0) { + gtk_list_store_remove (store, &iter); + g_free (item_text); + return TRUE; + } + + g_free (item_text); + } while (gtk_tree_model_iter_next (GTK_TREE_MODEL (store), &iter)); + + return FALSE; +} + +static void +clamp_list_store (GtkListStore *store, + guint max) +{ + GtkTreePath *path; + GtkTreeIter iter; + + /* -1 because TreePath counts from 0 */ + path = gtk_tree_path_new_from_indices (max - 1, -1); + + if (gtk_tree_model_get_iter (GTK_TREE_MODEL (store), &iter, path)) + while (1) + if (!gtk_list_store_remove (store, &iter)) + break; + + gtk_tree_path_free (path); +} + +static void +history_entry_insert (GtkListStore *store, + const gchar *text) +{ + GtkTreeIter iter; + + g_return_if_fail (text != NULL); + + if (g_utf8_strlen (text, -1) <= HISTORY_MIN_ITEM_LEN) + return; + + /* 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 */ + + if (!remove_item (store, text)) + clamp_list_store (store, HISTORY_LENGTH - 1); + + gtk_list_store_insert (store, &iter, 0); + gtk_list_store_set (store, &iter, 0, text, -1); +} + +static void +response_handler (GtkWidget *dialog, + gint response_id, + gpointer data) +{ + TerminalSearchDialogPrivate *priv; + const gchar *str; + + if (response_id != GTK_RESPONSE_ACCEPT) { + gtk_widget_hide (dialog); + return; + } + + priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + + str = gtk_entry_get_text (GTK_ENTRY (priv->search_text_entry)); + if (*str != '\0') + history_entry_insert (priv->store, str); +} + + +void +terminal_search_dialog_set_search_text (GtkWidget *dialog, + const gchar *text) +{ + TerminalSearchDialogPrivate *priv; + + g_return_if_fail (GTK_IS_DIALOG (dialog)); + g_return_if_fail (text != NULL); + + priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + g_return_if_fail (priv); + + gtk_entry_set_text (GTK_ENTRY (priv->search_text_entry), text); + + gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), + GTK_RESPONSE_ACCEPT, + (*text != '\0')); +} + +const gchar * +terminal_search_dialog_get_search_text (GtkWidget *dialog) +{ + TerminalSearchDialogPrivate *priv; + + g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL); + + priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + g_return_val_if_fail (priv, NULL); + + return gtk_entry_get_text (GTK_ENTRY (priv->search_text_entry)); +} + +TerminalSearchFlags +terminal_search_dialog_get_search_flags (GtkWidget *dialog) +{ + TerminalSearchDialogPrivate *priv; + TerminalSearchFlags flags = 0; + + g_return_val_if_fail (GTK_IS_DIALOG (dialog), flags); + + priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + g_return_val_if_fail (priv, flags); + + if (GET_FLAG (backwards_checkbutton)) + flags |= TERMINAL_SEARCH_FLAG_BACKWARDS; + + if (GET_FLAG (wrap_around_checkbutton)) + flags |= TERMINAL_SEARCH_FLAG_WRAP_AROUND; + + return flags; +} + +GRegex * +terminal_search_dialog_get_regex (GtkWidget *dialog) +{ + TerminalSearchDialogPrivate *priv; + GRegexCompileFlags compile_flags; + const char *text, *pattern; + + g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL); + + priv = TERMINAL_SEARCH_DIALOG_GET_PRIVATE (dialog); + g_return_val_if_fail (priv, NULL); + + pattern = text = terminal_search_dialog_get_search_text (dialog); + + compile_flags = G_REGEX_OPTIMIZE; + + if (!GET_FLAG (match_case_checkbutton)) + compile_flags |= G_REGEX_CASELESS; + + if (GET_FLAG (regex_checkbutton)) + compile_flags |= G_REGEX_MULTILINE; + else + pattern = g_regex_escape_string (text, -1); + + 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); + } + + if (!priv->regex || priv->regex_compile_flags != compile_flags) { + priv->regex_compile_flags = compile_flags; + if (priv->regex) + g_regex_unref (priv->regex); + + /* TODO Error handling */ + priv->regex = g_regex_new (pattern, compile_flags, 0, NULL); + } + + if (pattern != text) + g_free ((char *) pattern); + + return priv->regex; +} + |