initial

1 files changed, 823 insertions, 0 deletions

diff --git a/src/gtk-utils.c b/src/gtk-utils.c
new file mode 100644
index 0000000..c18ec62
--- /dev/null
+++ b/src/gtk-utils.c
@@ -0,0 +1,823 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  File-Roller
+ *
+ *  Copyright (C) 2001 The Free Software Foundation, Inc.
+ *
+ *  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 2 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <string.h>
+#include "gtk-utils.h"
+
+#define LOAD_BUFFER_SIZE 65536
+
+
+static void
+count_selected (GtkTreeModel *model,
+		GtkTreePath  *path,
+		GtkTreeIter  *iter,
+		gpointer      data)
+{
+	int *n = data;
+	*n = *n + 1;
+}
+
+
+int
+_gtk_count_selected (GtkTreeSelection *selection)
+{
+	int n = 0;
+
+	if (selection == NULL)
+		return 0;
+	gtk_tree_selection_selected_foreach (selection, count_selected, &n);
+	return n;
+}
+
+
+GtkWidget*
+_gtk_message_dialog_new (GtkWindow        *parent,
+			 GtkDialogFlags    flags,
+			 const char       *stock_id,
+			 const char       *message,
+			 const char       *secondary_message,
+			 const gchar      *first_button_text,
+			 ...)
+{
+	GtkWidget    *dialog;
+	GtkWidget    *label;
+	GtkWidget    *image;
+	GtkWidget    *hbox;
+	GtkWidget    *content_area;
+	va_list       args;
+	const gchar  *text;
+	int           response_id;
+	char         *markup_text;
+
+	g_return_val_if_fail ((message != NULL) || (secondary_message != NULL), NULL);
+
+	if (stock_id == NULL)
+		stock_id = GTK_STOCK_DIALOG_INFO;
+
+	dialog = gtk_dialog_new_with_buttons ("", parent, flags, NULL);
+
+	content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+	gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
+	gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
+	gtk_container_set_border_width (GTK_CONTAINER (content_area), 6);
+	gtk_box_set_spacing (GTK_BOX (content_area), 8);
+
+	/* Add label and image */
+
+	image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_DIALOG);
+	gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0.0);
+
+	label = gtk_label_new ("");
+
+	if (message != NULL) {
+		char *escaped_message;
+
+		escaped_message = g_markup_escape_text (message, -1);
+		if (secondary_message != NULL) {
+			char *escaped_secondary_message = g_markup_escape_text (secondary_message, -1);
+			markup_text = g_strdup_printf ("<span weight=\"bold\" size=\"larger\">%s</span>\n\n%s",
+						       escaped_message,
+						       escaped_secondary_message);
+			g_free (escaped_secondary_message);
+		}
+		else
+			markup_text = g_strdup (escaped_message);
+		g_free (escaped_message);
+	}
+	else
+		markup_text = g_markup_escape_text (secondary_message, -1);
+
+	gtk_label_set_markup (GTK_LABEL (label), markup_text);
+	g_free (markup_text);
+
+	gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+	gtk_label_set_selectable (GTK_LABEL (label), TRUE);
+
+	hbox = gtk_hbox_new (FALSE, 24);
+	gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
+
+	gtk_box_pack_start (GTK_BOX (hbox), image,
+			    FALSE, FALSE, 0);
+
+	gtk_box_pack_start (GTK_BOX (hbox), label,
+			    TRUE, TRUE, 0);
+
+	gtk_box_pack_start (GTK_BOX (content_area),
+			    hbox,
+			    FALSE, FALSE, 0);
+
+	gtk_widget_show_all (hbox);
+
+	/* Add buttons */
+
+	if (first_button_text == NULL)
+		return dialog;
+
+	va_start (args, first_button_text);
+
+	text = first_button_text;
+	response_id = va_arg (args, gint);
+
+	while (text != NULL) {
+		gtk_dialog_add_button (GTK_DIALOG (dialog), text, response_id);
+
+		text = va_arg (args, char*);
+		if (text == NULL)
+			break;
+		response_id = va_arg (args, int);
+	}
+
+	va_end (args);
+
+	return dialog;
+}
+
+
+static GtkWidget *
+create_button (const char *stock_id,
+	       const char *text)
+{
+	GtkWidget    *button;
+	GtkWidget    *hbox;
+	GtkWidget    *image;
+	GtkWidget    *label;
+	GtkWidget    *align;
+	const char   *label_text;
+	gboolean      text_is_stock;
+	GtkStockItem  stock_item;
+
+	if (gtk_stock_lookup (text, &stock_item)) {
+		label_text = stock_item.label;
+		text_is_stock = TRUE;
+	} else {
+		label_text = text;
+		text_is_stock = FALSE;
+	}
+
+	if (text_is_stock)
+		image = gtk_image_new_from_stock (text, GTK_ICON_SIZE_BUTTON);
+	else
+		image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_BUTTON);
+	button = gtk_button_new_with_mnemonic (label_text);
+	gtk_button_set_image (GTK_BUTTON (button), image);
+
+	gtk_widget_set_can_default (button, TRUE);
+
+	gtk_widget_show (button);
+
+	return button;
+}
+
+
+char *
+_gtk_request_dialog_run (GtkWindow        *parent,
+			 GtkDialogFlags    flags,
+			 const char       *title,
+			 const char       *message,
+			 const char       *default_value,
+			 int               max_length,
+			 const gchar      *no_button_text,
+			 const gchar      *yes_button_text)
+{
+	GtkWidget    *dialog;
+	GtkWidget    *label;
+	GtkWidget    *image;
+	GtkWidget    *hbox;
+	GtkWidget    *vbox;
+	GtkWidget    *entry;
+	GtkWidget    *button;
+	GtkWidget    *content_area;
+	char         *stock_id;
+	char         *result;
+
+	stock_id = GTK_STOCK_DIALOG_QUESTION;
+
+	dialog = gtk_dialog_new_with_buttons (title, parent, flags, NULL);
+
+	content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+	gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
+	gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
+	gtk_container_set_border_width (GTK_CONTAINER (content_area), 6);
+	gtk_box_set_spacing (GTK_BOX (content_area), 8);
+
+	/* Add label and image */
+
+	image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_DIALOG);
+	gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0.0);
+
+	label = gtk_label_new (message);
+	gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+	gtk_label_set_selectable (GTK_LABEL (label), FALSE);
+	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);
+
+	entry = gtk_entry_new ();
+	gtk_widget_set_size_request (entry, 250, -1);
+	gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE);
+	gtk_entry_set_max_length (GTK_ENTRY (entry), max_length);
+	gtk_entry_set_text (GTK_ENTRY (entry), default_value);
+
+	hbox = gtk_hbox_new (FALSE, 24);
+	vbox = gtk_vbox_new (FALSE, 6);
+
+	gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
+	gtk_box_pack_start (GTK_BOX (hbox), image,
+			    FALSE, FALSE, 0);
+
+	gtk_box_pack_start (GTK_BOX (hbox), vbox,
+			    TRUE, TRUE, 0);
+
+	gtk_box_pack_start (GTK_BOX (vbox), label,
+			    FALSE, FALSE, 0);
+
+	gtk_box_pack_start (GTK_BOX (vbox), entry,
+			    FALSE, FALSE, 0);
+
+	gtk_box_pack_start (GTK_BOX (content_area),
+			    hbox,
+			    FALSE, FALSE, 0);
+
+	gtk_widget_show_all (hbox);
+
+	/* Add buttons */
+
+	button = create_button (GTK_STOCK_CANCEL, no_button_text);
+	gtk_dialog_add_action_widget (GTK_DIALOG (dialog),
+				      button,
+				      GTK_RESPONSE_CANCEL);
+
+	button = create_button (GTK_STOCK_OK, yes_button_text);
+	gtk_dialog_add_action_widget (GTK_DIALOG (dialog),
+				      button,
+				      GTK_RESPONSE_YES);
+
+	gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_YES);
+
+	/* Run dialog */
+
+	gtk_widget_grab_focus (entry);
+
+	if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_YES)
+		result = g_strdup (gtk_entry_get_text (GTK_ENTRY (entry)));
+	else
+		result = NULL;
+
+	gtk_widget_destroy (dialog);
+
+	return result;
+}
+
+
+GtkWidget*
+_gtk_yesno_dialog_new (GtkWindow        *parent,
+		       GtkDialogFlags    flags,
+		       const char       *message,
+		       const char       *no_button_text,
+		       const char       *yes_button_text)
+{
+	GtkWidget    *d;
+	GtkWidget    *label;
+	GtkWidget    *image;
+	GtkWidget    *hbox;
+	GtkWidget    *button;
+	GtkWidget    *content_area;
+	char         *stock_id = GTK_STOCK_DIALOG_WARNING;
+
+	d = gtk_dialog_new_with_buttons ("", parent, flags, NULL);
+	gtk_window_set_resizable (GTK_WINDOW (d), FALSE);
+
+	content_area = gtk_dialog_get_content_area (GTK_DIALOG (d));
+
+	gtk_dialog_set_has_separator (GTK_DIALOG (d), FALSE);
+	gtk_container_set_border_width (GTK_CONTAINER (d), 6);
+	gtk_container_set_border_width (GTK_CONTAINER (content_area), 6);
+	gtk_box_set_spacing (GTK_BOX (content_area), 8);
+
+	/* Add label and image */
+
+	image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_DIALOG);
+	gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0.0);
+
+	label = gtk_label_new (message);
+	gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+	gtk_label_set_selectable (GTK_LABEL (label), TRUE);
+
+	hbox = gtk_hbox_new (FALSE, 24);
+	gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
+
+	gtk_box_pack_start (GTK_BOX (hbox), image,
+			    FALSE, FALSE, 0);
+
+	gtk_box_pack_start (GTK_BOX (hbox), label,
+			    TRUE, TRUE, 0);
+
+	gtk_box_pack_start (GTK_BOX (content_area),
+			    hbox,
+			    FALSE, FALSE, 0);
+
+	gtk_widget_show_all (hbox);
+
+	/* Add buttons */
+
+	button = create_button (GTK_STOCK_CANCEL, no_button_text);
+	gtk_dialog_add_action_widget (GTK_DIALOG (d),
+				      button,
+				      GTK_RESPONSE_CANCEL);
+
+	/**/
+
+	button = create_button (GTK_STOCK_OK, yes_button_text);
+	gtk_dialog_add_action_widget (GTK_DIALOG (d),
+				      button,
+				      GTK_RESPONSE_YES);
+
+	/**/
+
+	gtk_dialog_set_default_response (GTK_DIALOG (d), GTK_RESPONSE_YES);
+
+	return d;
+}
+
+
+GtkWidget*
+_gtk_error_dialog_new (GtkWindow        *parent,
+		       GtkDialogFlags    flags,
+		       GList            *row_output,
+		       const char       *primary_text,
+		       const char       *secondary_text,
+		       ...)
+{
+	GtkWidget     *dialog;
+	GtkWidget     *label;
+	GtkWidget     *image;
+	GtkWidget     *hbox;
+	GtkWidget     *vbox;
+	GtkWidget     *text_view;
+	GtkWidget     *scrolled = NULL;
+	GtkWidget     *expander;
+	GtkWidget     *content_area;
+	GtkTextBuffer *text_buf;
+	GtkTextIter    iter;
+	char          *stock_id;
+	GList         *scan;
+	char          *escaped_message, *markup_text;
+	va_list        args;
+	gboolean       view_output = (row_output != NULL);
+
+	stock_id = GTK_STOCK_DIALOG_ERROR;
+
+	dialog = gtk_dialog_new_with_buttons ("",
+					      parent,
+					      flags,
+					      GTK_STOCK_OK, GTK_RESPONSE_OK,
+					      NULL);
+	gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
+	gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
+
+	content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+	gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
+	gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
+	gtk_container_set_border_width (GTK_CONTAINER (content_area), 6);
+	gtk_box_set_spacing (GTK_BOX (content_area), 8);
+
+	gtk_widget_set_size_request (dialog, 500, -1);
+
+	/* Add label and image */
+
+	image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_DIALOG);
+	gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0.0);
+
+	label = gtk_label_new ("");
+	gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+	gtk_label_set_selectable (GTK_LABEL (label), TRUE);
+
+	escaped_message = g_markup_escape_text (primary_text, -1);
+	if (secondary_text != NULL) {
+		char *secondary_message;
+		char *escaped_secondary_message;
+
+		va_start (args, secondary_text);
+		secondary_message = g_strdup_vprintf (secondary_text, args);
+		va_end (args);
+		escaped_secondary_message = g_markup_escape_text (secondary_message, -1);
+
+		markup_text = g_strdup_printf ("<span weight=\"bold\" size=\"larger\">%s</span>\n\n%s\n",
+					       escaped_message,
+					       escaped_secondary_message);
+
+		g_free (escaped_secondary_message);
+		g_free (secondary_message);
+	}
+	else
+		markup_text = g_strdup (escaped_message);
+	gtk_label_set_markup (GTK_LABEL (label), markup_text);
+	g_free (markup_text);
+	g_free (escaped_message);
+
+	if (view_output) {
+		/* Expander */
+
+		expander = gtk_expander_new_with_mnemonic (_("Command _Line Output"));
+		gtk_expander_set_expanded (GTK_EXPANDER (expander), secondary_text == NULL);
+
+		/* Add text */
+
+		scrolled = gtk_scrolled_window_new (NULL, NULL);
+		gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled),
+						GTK_POLICY_AUTOMATIC,
+						GTK_POLICY_AUTOMATIC);
+		gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled),
+						     GTK_SHADOW_ETCHED_IN);
+		gtk_widget_set_size_request (scrolled, -1, 200);
+
+		text_buf = gtk_text_buffer_new (NULL);
+		gtk_text_buffer_create_tag (text_buf, "monospace",
+					    "family", "monospace", NULL);
+		gtk_text_buffer_get_iter_at_offset (text_buf, &iter, 0);
+		for (scan = row_output; scan; scan = scan->next) {
+			char *line = scan->data;
+			char *utf8_line;
+			gsize bytes_written;
+
+			utf8_line = g_locale_to_utf8 (line, -1, NULL, &bytes_written, NULL);
+			gtk_text_buffer_insert_with_tags_by_name (text_buf,
+								  &iter,
+								  utf8_line,
+								  bytes_written,
+								  "monospace", NULL);
+			g_free (utf8_line);
+
+			gtk_text_buffer_insert (text_buf, &iter, "\n", 1);
+		}
+		text_view = gtk_text_view_new_with_buffer (text_buf);
+		g_object_unref (text_buf);
+		gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
+		gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
+	}
+
+	vbox = gtk_vbox_new (FALSE, 6);
+	gtk_container_set_border_width (GTK_CONTAINER (vbox), 5);
+
+	hbox = gtk_hbox_new (FALSE, 12);
+	gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
+	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+	gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
+
+	if (view_output) {
+		gtk_container_add (GTK_CONTAINER (scrolled), text_view);
+		gtk_container_add (GTK_CONTAINER (expander), scrolled);
+		gtk_box_pack_start (GTK_BOX (vbox), expander, TRUE, TRUE, 0);
+	}
+
+	gtk_box_pack_start (GTK_BOX (content_area),
+			    vbox,
+			    FALSE, FALSE, 0);
+	gtk_widget_show_all (vbox);
+
+	return dialog;
+}
+
+
+void
+_gtk_error_dialog_run (GtkWindow        *parent,
+		       const gchar      *main_message,
+		       const gchar      *format,
+		       ...)
+{
+	GtkWidget *d;
+	char      *message;
+	va_list    args;
+
+	va_start (args, format);
+	message = g_strdup_vprintf (format, args);
+	va_end (args);
+
+	d =  _gtk_message_dialog_new (parent,
+				      GTK_DIALOG_MODAL,
+				      GTK_STOCK_DIALOG_ERROR,
+				      main_message,
+				      message,
+				      GTK_STOCK_CLOSE, GTK_RESPONSE_CANCEL,
+				      NULL);
+	g_free (message);
+
+	g_signal_connect (G_OBJECT (d), "response",
+			  G_CALLBACK (gtk_widget_destroy),
+			  NULL);
+
+	gtk_widget_show (d);
+}
+
+
+void
+_gtk_entry_set_locale_text (GtkEntry   *entry,
+			    const char *text)
+{
+	char *utf8_text;
+
+	if (text == NULL)
+		return;
+
+	utf8_text = g_locale_to_utf8 (text, -1, NULL, NULL, NULL);
+	if (utf8_text != NULL)
+		gtk_entry_set_text (entry, utf8_text);
+	else
+		gtk_entry_set_text (entry, "");
+	g_free (utf8_text);
+}
+
+
+char *
+_gtk_entry_get_locale_text (GtkEntry *entry)
+{
+	const char *utf8_text;
+	char       *text;
+
+	utf8_text = gtk_entry_get_text (entry);
+	if (utf8_text == NULL)
+		return NULL;
+
+	text = g_locale_from_utf8 (utf8_text, -1, NULL, NULL, NULL);
+
+	return text;
+}
+
+
+void
+_gtk_label_set_locale_text (GtkLabel   *label,
+			    const char *text)
+{
+	char *utf8_text;
+
+	utf8_text = g_locale_to_utf8 (text, -1, NULL, NULL, NULL);
+	if (utf8_text != NULL) {
+		gtk_label_set_text (label, utf8_text);
+		g_free (utf8_text);
+	} else
+		gtk_label_set_text (label, "");
+}
+
+
+char *
+_gtk_label_get_locale_text (GtkLabel *label)
+{
+	const char *utf8_text;
+	char       *text;
+
+	utf8_text = gtk_label_get_text (label);
+	if (utf8_text == NULL)
+		return NULL;
+
+	text = g_locale_from_utf8 (utf8_text, -1, NULL, NULL, NULL);
+
+	return text;
+}
+
+
+void
+_gtk_entry_set_filename_text (GtkEntry   *entry,
+			      const char *text)
+{
+	char *utf8_text;
+
+	utf8_text = g_filename_to_utf8 (text, -1, NULL, NULL, NULL);
+	if (utf8_text != NULL) {
+		gtk_entry_set_text (entry, utf8_text);
+		g_free (utf8_text);
+	} else
+		gtk_entry_set_text (entry, "");
+}
+
+
+char *
+_gtk_entry_get_filename_text (GtkEntry   *entry)
+{
+	const char *utf8_text;
+	char       *text;
+
+	utf8_text = gtk_entry_get_text (entry);
+	if (utf8_text == NULL)
+		return NULL;
+
+	text = g_filename_from_utf8 (utf8_text, -1, NULL, NULL, NULL);
+
+	return text;
+}
+
+
+void
+_gtk_label_set_filename_text (GtkLabel   *label,
+			      const char *text)
+{
+	char *utf8_text;
+
+	utf8_text = g_filename_display_name (text);
+	gtk_label_set_text (label, utf8_text);
+	g_free (utf8_text);
+}
+
+
+char *
+_gtk_label_get_filename_text (GtkLabel   *label)
+{
+	const char *utf8_text;
+	char       *text;
+
+	utf8_text = gtk_label_get_text (label);
+	if (utf8_text == NULL)
+		return NULL;
+
+	text = g_filename_from_utf8 (utf8_text, -1, NULL, NULL, NULL);
+
+	return text;
+}
+
+
+static GdkPixbuf *
+get_themed_icon_pixbuf (GThemedIcon  *icon,
+		        int           size,
+		        GtkIconTheme *icon_theme)
+{
+	char        **icon_names;
+	GtkIconInfo  *icon_info;
+	GdkPixbuf    *pixbuf;
+	GError       *error = NULL;
+
+	g_object_get (icon, "names", &icon_names, NULL);
+
+	icon_info = gtk_icon_theme_choose_icon (icon_theme, (const char **)icon_names, size, 0);
+	if (icon_info == NULL)
+		icon_info = gtk_icon_theme_lookup_icon (icon_theme, "text-x-generic", size, GTK_ICON_LOOKUP_USE_BUILTIN);
+
+	pixbuf = gtk_icon_info_load_icon (icon_info, &error);
+	if (pixbuf == NULL) {
+		g_warning ("could not load icon pixbuf: %s\n", error->message);
+		g_clear_error (&error);
+	}
+
+	gtk_icon_info_free (icon_info);
+	g_strfreev (icon_names);
+
+	return pixbuf;
+}
+
+
+static GdkPixbuf *
+get_file_icon_pixbuf (GFileIcon *icon,
+		      int        size)
+{
+	GFile     *file;
+	char      *filename;
+	GdkPixbuf *pixbuf;
+
+	file = g_file_icon_get_file (icon);
+	filename = g_file_get_path (file);
+	pixbuf = gdk_pixbuf_new_from_file_at_size (filename, size, -1, NULL);
+	g_free (filename);
+	g_object_unref (file);
+
+	return pixbuf;
+}
+
+
+GdkPixbuf *
+get_icon_pixbuf (GIcon        *icon,
+		 int           size,
+		 GtkIconTheme *theme)
+{
+	if (icon == NULL)
+		return NULL;
+	if (G_IS_THEMED_ICON (icon))
+		return get_themed_icon_pixbuf (G_THEMED_ICON (icon), size, theme);
+	if (G_IS_FILE_ICON (icon))
+		return get_file_icon_pixbuf (G_FILE_ICON (icon), size);
+	return NULL;
+}
+
+
+GdkPixbuf *
+get_mime_type_pixbuf (const char   *mime_type,
+		      int           icon_size,
+		      GtkIconTheme *icon_theme)
+{
+	GdkPixbuf *pixbuf = NULL;
+	GIcon     *icon;
+
+	if (icon_theme == NULL)
+		icon_theme = gtk_icon_theme_get_default ();
+
+	icon = g_content_type_get_icon (mime_type);
+	pixbuf = get_icon_pixbuf (icon, icon_size, icon_theme);
+	g_object_unref (icon);
+
+	return pixbuf;
+}
+
+
+int
+get_folder_pixbuf_size_for_list (GtkWidget *widget)
+{
+	int icon_width, icon_height;
+
+	gtk_icon_size_lookup_for_settings (gtk_widget_get_settings (widget),
+					   GTK_ICON_SIZE_SMALL_TOOLBAR,
+					   &icon_width, &icon_height);
+	return MAX (icon_width, icon_height);
+}
+
+
+gboolean
+show_uri (GdkScreen   *screen,
+	  const char  *uri,
+	  guint32      timestamp,
+	  GError     **error)
+{
+	gboolean result;
+
+	result = gtk_show_uri (screen, uri, timestamp, error);
+
+	return result;
+}
+
+
+void
+show_help_dialog (GtkWindow  *parent,
+		  const char *section)
+{
+	char   *uri;
+	GError *error = NULL;
+
+	uri = g_strconcat ("ghelp:file-roller", section ? "?" : NULL, section, NULL);
+	if (! show_uri (gtk_window_get_screen (parent), uri, GDK_CURRENT_TIME, &error)) {
+  		GtkWidget *dialog;
+
+		dialog = _gtk_message_dialog_new (parent,
+						  GTK_DIALOG_DESTROY_WITH_PARENT,
+						  GTK_STOCK_DIALOG_ERROR,
+						  _("Could not display help"),
+						  error->message,
+						  GTK_STOCK_OK, GTK_RESPONSE_OK,
+						  NULL);
+		gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
+
+		g_signal_connect (G_OBJECT (dialog), "response",
+				  G_CALLBACK (gtk_widget_destroy),
+				  NULL);
+
+		gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
+
+		gtk_widget_show (dialog);
+
+		g_clear_error (&error);
+	}
+	g_free (uri);
+}
+
+
+GtkBuilder *
+_gtk_builder_new_from_file (const char *ui_file)
+{
+	char       *filename;
+	GtkBuilder *builder;
+	GError     *error = NULL;
+
+	filename = g_build_filename (UI_DIR, ui_file, NULL);
+	builder = gtk_builder_new ();
+        if (! gtk_builder_add_from_file (builder, filename, &error)) {
+                g_warning ("%s\n", error->message);
+                g_clear_error (&error);
+        }
+	g_free (filename);
+
+        return builder;
+}
+
+
+GtkWidget *
+_gtk_builder_get_widget (GtkBuilder *builder,
+			 const char *name)
+{
+	return (GtkWidget *) gtk_builder_get_object (builder, name);
+}