initial

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;
+}
+