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![Alexander Larsson](/assets/img/avatar_default.png)
2008-10-17 Alexander Larsson <alexl@redhat.com> * libnautilus-private/nautilus-bookmark.c: (bookmark_file_changed_callback): Don't immediately recreate NautilusFile for the bookmark when the file is deleted, as this can cause loops if the file is monitored. See https://bugzilla.redhat.com/show_bug.cgi?id=465479 svn path=/trunk/; revision=14734
637 lines
17 KiB
C
637 lines
17 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
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/* nautilus-bookmark.c - implementation of individual bookmarks.
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Copyright (C) 1999, 2000 Eazel, Inc.
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The Gnome Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The Gnome Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the Gnome Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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Authors: John Sullivan <sullivan@eazel.com>
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*/
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#include <config.h>
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#include "nautilus-bookmark.h"
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#include "nautilus-file.h"
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#include <eel/eel-gdk-pixbuf-extensions.h>
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#include <eel/eel-gtk-extensions.h>
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#include <eel/eel-gtk-macros.h>
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#include <eel/eel-string.h>
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#include <eel/eel-vfs-extensions.h>
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#include <gtk/gtk.h>
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#include <gio/gio.h>
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#include <libnautilus-private/nautilus-file.h>
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enum {
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APPEARANCE_CHANGED,
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CONTENTS_CHANGED,
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LAST_SIGNAL
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};
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#define GENERIC_BOOKMARK_ICON_NAME "gnome-fs-bookmark"
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#define MISSING_BOOKMARK_ICON_NAME "gnome-fs-bookmark-missing"
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#define ELLIPSISED_MENU_ITEM_MIN_CHARS 32
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static guint signals[LAST_SIGNAL];
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struct NautilusBookmarkDetails
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{
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char *name;
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gboolean has_custom_name;
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GFile *location;
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GIcon *icon;
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NautilusFile *file;
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char *scroll_file;
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};
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static void nautilus_bookmark_connect_file (NautilusBookmark *file);
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static void nautilus_bookmark_disconnect_file (NautilusBookmark *file);
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G_DEFINE_TYPE (NautilusBookmark, nautilus_bookmark, GTK_TYPE_OBJECT);
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/* GtkObject methods. */
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static void
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nautilus_bookmark_finalize (GObject *object)
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{
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NautilusBookmark *bookmark;
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g_assert (NAUTILUS_IS_BOOKMARK (object));
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bookmark = NAUTILUS_BOOKMARK (object);
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nautilus_bookmark_disconnect_file (bookmark);
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g_free (bookmark->details->name);
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g_object_unref (bookmark->details->location);
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if (bookmark->details->icon) {
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g_object_unref (bookmark->details->icon);
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}
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g_free (bookmark->details->scroll_file);
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g_free (bookmark->details);
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G_OBJECT_CLASS (nautilus_bookmark_parent_class)->finalize (object);
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}
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/* Initialization. */
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static void
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nautilus_bookmark_class_init (NautilusBookmarkClass *class)
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{
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G_OBJECT_CLASS (class)->finalize = nautilus_bookmark_finalize;
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signals[APPEARANCE_CHANGED] =
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g_signal_new ("appearance_changed",
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G_TYPE_FROM_CLASS (class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (NautilusBookmarkClass, appearance_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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signals[CONTENTS_CHANGED] =
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g_signal_new ("contents_changed",
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G_TYPE_FROM_CLASS (class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (NautilusBookmarkClass, contents_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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}
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static void
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nautilus_bookmark_init (NautilusBookmark *bookmark)
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{
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bookmark->details = g_new0 (NautilusBookmarkDetails, 1);
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}
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/**
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* nautilus_bookmark_compare_with:
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*
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* Check whether two bookmarks are considered identical.
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* @a: first NautilusBookmark*.
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* @b: second NautilusBookmark*.
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*
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* Return value: 0 if @a and @b have same name and uri, 1 otherwise
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* (GCompareFunc style)
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**/
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int
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nautilus_bookmark_compare_with (gconstpointer a, gconstpointer b)
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{
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NautilusBookmark *bookmark_a;
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NautilusBookmark *bookmark_b;
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (a), 1);
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (b), 1);
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bookmark_a = NAUTILUS_BOOKMARK (a);
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bookmark_b = NAUTILUS_BOOKMARK (b);
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if (eel_strcmp (bookmark_a->details->name,
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bookmark_b->details->name) != 0) {
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return 1;
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}
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if (!g_file_equal (bookmark_a->details->location,
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bookmark_b->details->location)) {
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return 1;
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}
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return 0;
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}
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/**
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* nautilus_bookmark_compare_uris:
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*
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* Check whether the uris of two bookmarks are for the same location.
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* @a: first NautilusBookmark*.
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* @b: second NautilusBookmark*.
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*
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* Return value: 0 if @a and @b have matching uri, 1 otherwise
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* (GCompareFunc style)
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**/
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int
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nautilus_bookmark_compare_uris (gconstpointer a, gconstpointer b)
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{
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NautilusBookmark *bookmark_a;
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NautilusBookmark *bookmark_b;
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (a), 1);
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (b), 1);
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bookmark_a = NAUTILUS_BOOKMARK (a);
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bookmark_b = NAUTILUS_BOOKMARK (b);
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return !g_file_equal (bookmark_a->details->location,
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bookmark_b->details->location);
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}
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NautilusBookmark *
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nautilus_bookmark_copy (NautilusBookmark *bookmark)
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{
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), NULL);
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return nautilus_bookmark_new_with_icon (
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bookmark->details->location,
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bookmark->details->name,
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bookmark->details->has_custom_name,
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bookmark->details->icon);
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}
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char *
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nautilus_bookmark_get_name (NautilusBookmark *bookmark)
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{
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g_return_val_if_fail(NAUTILUS_IS_BOOKMARK (bookmark), NULL);
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return g_strdup (bookmark->details->name);
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}
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gboolean
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nautilus_bookmark_get_has_custom_name (NautilusBookmark *bookmark)
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{
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g_return_val_if_fail(NAUTILUS_IS_BOOKMARK (bookmark), FALSE);
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return (bookmark->details->has_custom_name);
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}
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GdkPixbuf *
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nautilus_bookmark_get_pixbuf (NautilusBookmark *bookmark,
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GtkIconSize stock_size)
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{
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GdkPixbuf *result;
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GIcon *icon;
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NautilusIconInfo *info;
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int pixel_size;
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), NULL);
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icon = nautilus_bookmark_get_icon (bookmark);
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if (icon == NULL) {
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return NULL;
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}
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pixel_size = nautilus_get_icon_size_for_stock_size (stock_size);
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info = nautilus_icon_info_lookup (icon, pixel_size);
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result = nautilus_icon_info_get_pixbuf_at_size (info, pixel_size);
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g_object_unref (info);
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g_object_unref (icon);
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return result;
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}
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GIcon *
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nautilus_bookmark_get_icon (NautilusBookmark *bookmark)
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{
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), NULL);
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/* Try to connect a file in case file exists now but didn't earlier. */
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nautilus_bookmark_connect_file (bookmark);
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if (bookmark->details->icon) {
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return g_object_ref (bookmark->details->icon);
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}
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return NULL;
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}
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GFile *
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nautilus_bookmark_get_location (NautilusBookmark *bookmark)
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{
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g_return_val_if_fail(NAUTILUS_IS_BOOKMARK (bookmark), NULL);
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/* Try to connect a file in case file exists now but didn't earlier.
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* This allows a bookmark to update its image properly in the case
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* where a new file appears with the same URI as a previously-deleted
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* file. Calling connect_file here means that attempts to activate the
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* bookmark will update its image if possible.
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*/
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nautilus_bookmark_connect_file (bookmark);
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return g_object_ref (bookmark->details->location);
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}
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char *
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nautilus_bookmark_get_uri (NautilusBookmark *bookmark)
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{
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GFile *file;
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char *uri;
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file = nautilus_bookmark_get_location (bookmark);
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uri = g_file_get_uri (file);
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g_object_unref (file);
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return uri;
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}
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/**
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* nautilus_bookmark_set_name:
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*
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* Change the user-displayed name of a bookmark.
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* @new_name: The new user-displayed name for this bookmark, mustn't be NULL.
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*
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* Returns: TRUE if the name changed else FALSE.
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**/
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gboolean
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nautilus_bookmark_set_name (NautilusBookmark *bookmark, const char *new_name)
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{
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g_return_val_if_fail (new_name != NULL, FALSE);
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g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), FALSE);
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if (strcmp (new_name, bookmark->details->name) == 0) {
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return FALSE;
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}
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g_free (bookmark->details->name);
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bookmark->details->name = g_strdup (new_name);
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g_signal_emit (bookmark, signals[APPEARANCE_CHANGED], 0);
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return TRUE;
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}
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void
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nautilus_bookmark_set_has_custom_name (NautilusBookmark *bookmark, gboolean has_custom_name)
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{
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bookmark->details->has_custom_name = has_custom_name;
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}
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static gboolean
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nautilus_bookmark_icon_is_different (NautilusBookmark *bookmark,
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GIcon *new_icon)
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{
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g_assert (NAUTILUS_IS_BOOKMARK (bookmark));
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g_assert (new_icon != NULL);
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if (bookmark->details->icon == NULL) {
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return TRUE;
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}
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return !g_icon_equal (bookmark->details->icon, new_icon) != 0;
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}
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/**
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* Update icon if there's a better one available.
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* Return TRUE if the icon changed.
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*/
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static gboolean
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nautilus_bookmark_update_icon (NautilusBookmark *bookmark)
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{
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GIcon *new_icon;
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g_assert (NAUTILUS_IS_BOOKMARK (bookmark));
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if (bookmark->details->file == NULL) {
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return FALSE;
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}
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if (!nautilus_file_is_not_yet_confirmed (bookmark->details->file) &&
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nautilus_file_check_if_ready (bookmark->details->file,
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NAUTILUS_FILE_ATTRIBUTES_FOR_ICON)) {
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new_icon = nautilus_file_get_gicon (bookmark->details->file, 0);
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if (nautilus_bookmark_icon_is_different (bookmark, new_icon)) {
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if (bookmark->details->icon) {
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g_object_unref (bookmark->details->icon);
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}
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bookmark->details->icon = new_icon;
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return TRUE;
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}
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g_object_unref (new_icon);
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}
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return FALSE;
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}
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static void
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bookmark_file_changed_callback (NautilusFile *file, NautilusBookmark *bookmark)
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{
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GFile *location;
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gboolean should_emit_appearance_changed_signal;
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gboolean should_emit_contents_changed_signal;
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char *display_name;
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g_assert (NAUTILUS_IS_FILE (file));
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g_assert (NAUTILUS_IS_BOOKMARK (bookmark));
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g_assert (file == bookmark->details->file);
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should_emit_appearance_changed_signal = FALSE;
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should_emit_contents_changed_signal = FALSE;
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location = nautilus_file_get_location (file);
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if (!g_file_equal (bookmark->details->location, location) &&
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!nautilus_file_is_in_trash (file)) {
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g_object_unref (bookmark->details->location);
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bookmark->details->location = location;
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should_emit_contents_changed_signal = TRUE;
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} else {
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g_object_unref (location);
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}
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if (nautilus_file_is_gone (file) ||
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nautilus_file_is_in_trash (file)) {
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/* The file we were monitoring has been trashed, deleted,
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* or moved in a way that we didn't notice. We should make
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* a spanking new NautilusFile object for this
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* location so if a new file appears in this place
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* we will notice. However, we can't immediately do so
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* because creating a new NautilusFile directly as a result
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* of noticing a file goes away may trigger i/o on that file
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* again, noticeing it is gone, leading to a loop.
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* So, the new NautilusFile is created when the bookmark
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* is used again. However, this is not really a problem, as
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* we don't want to change the icon or anything about the
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* bookmark just because its not there anymore.
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*/
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nautilus_bookmark_disconnect_file (bookmark);
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} else if (nautilus_bookmark_update_icon (bookmark)) {
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/* File hasn't gone away, but it has changed
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* in a way that affected its icon.
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*/
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should_emit_appearance_changed_signal = TRUE;
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}
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if (!bookmark->details->has_custom_name) {
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display_name = nautilus_file_get_display_name (file);
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if (strcmp (bookmark->details->name, display_name) != 0) {
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g_free (bookmark->details->name);
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bookmark->details->name = display_name;
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should_emit_appearance_changed_signal = TRUE;
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} else {
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g_free (display_name);
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}
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}
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if (should_emit_appearance_changed_signal) {
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g_signal_emit (bookmark, signals[APPEARANCE_CHANGED], 0);
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}
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if (should_emit_contents_changed_signal) {
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g_signal_emit (bookmark, signals[CONTENTS_CHANGED], 0);
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}
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}
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/**
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* nautilus_bookmark_set_icon_to_default:
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*
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* Reset the icon to either the missing bookmark icon or the generic
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* bookmark icon, depending on whether the file still exists.
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*/
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static void
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nautilus_bookmark_set_icon_to_default (NautilusBookmark *bookmark)
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{
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const char *icon_name;
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if (bookmark->details->icon) {
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g_object_unref (bookmark->details->icon);
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}
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if (nautilus_bookmark_uri_known_not_to_exist (bookmark)) {
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icon_name = MISSING_BOOKMARK_ICON_NAME;
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} else {
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icon_name = GENERIC_BOOKMARK_ICON_NAME;
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}
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bookmark->details->icon = g_themed_icon_new (icon_name);
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}
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/**
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* nautilus_bookmark_new:
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*
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* Create a new NautilusBookmark from a text uri and a display name.
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* The initial icon for the bookmark will be based on the information
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* already available without any explicit action on NautilusBookmark's
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* part.
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*
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* @uri: Any uri, even a malformed or non-existent one.
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* @name: A string to display to the user as the bookmark's name.
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*
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* Return value: A newly allocated NautilusBookmark.
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*
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**/
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NautilusBookmark *
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nautilus_bookmark_new (GFile *location, const char *name)
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{
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return nautilus_bookmark_new_with_icon (location, name, TRUE, NULL);
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}
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static void
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nautilus_bookmark_disconnect_file (NautilusBookmark *bookmark)
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{
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g_assert (NAUTILUS_IS_BOOKMARK (bookmark));
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if (bookmark->details->file != NULL) {
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g_signal_handlers_disconnect_by_func (bookmark->details->file,
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G_CALLBACK (bookmark_file_changed_callback),
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bookmark);
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nautilus_file_unref (bookmark->details->file);
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bookmark->details->file = NULL;
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}
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if (bookmark->details->icon != NULL) {
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g_object_unref (bookmark->details->icon);
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bookmark->details->icon = NULL;
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}
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}
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static void
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nautilus_bookmark_connect_file (NautilusBookmark *bookmark)
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{
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char *display_name;
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g_assert (NAUTILUS_IS_BOOKMARK (bookmark));
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if (bookmark->details->file != NULL) {
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return;
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}
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if (!nautilus_bookmark_uri_known_not_to_exist (bookmark)) {
|
|
bookmark->details->file = nautilus_file_get (bookmark->details->location);
|
|
g_assert (!nautilus_file_is_gone (bookmark->details->file));
|
|
|
|
g_signal_connect_object (bookmark->details->file, "changed",
|
|
G_CALLBACK (bookmark_file_changed_callback), bookmark, 0);
|
|
}
|
|
|
|
/* Set icon based on available information; don't force network i/o
|
|
* to get any currently unknown information.
|
|
*/
|
|
if (!nautilus_bookmark_update_icon (bookmark)) {
|
|
if (bookmark->details->icon == NULL || bookmark->details->file == NULL) {
|
|
nautilus_bookmark_set_icon_to_default (bookmark);
|
|
}
|
|
}
|
|
|
|
if (!bookmark->details->has_custom_name &&
|
|
bookmark->details->file &&
|
|
nautilus_file_check_if_ready (bookmark->details->file, NAUTILUS_FILE_ATTRIBUTE_INFO)) {
|
|
display_name = nautilus_file_get_display_name (bookmark->details->file);
|
|
if (strcmp (bookmark->details->name, display_name) != 0) {
|
|
g_free (bookmark->details->name);
|
|
bookmark->details->name = display_name;
|
|
} else {
|
|
g_free (display_name);
|
|
}
|
|
}
|
|
}
|
|
|
|
NautilusBookmark *
|
|
nautilus_bookmark_new_with_icon (GFile *location, const char *name, gboolean has_custom_name,
|
|
GIcon *icon)
|
|
{
|
|
NautilusBookmark *new_bookmark;
|
|
|
|
new_bookmark = NAUTILUS_BOOKMARK (g_object_new (NAUTILUS_TYPE_BOOKMARK, NULL));
|
|
g_object_ref_sink (new_bookmark);
|
|
|
|
new_bookmark->details->name = g_strdup (name);
|
|
new_bookmark->details->location = g_object_ref (location);
|
|
new_bookmark->details->has_custom_name = has_custom_name;
|
|
if (icon) {
|
|
new_bookmark->details->icon = g_object_ref (icon);
|
|
}
|
|
|
|
nautilus_bookmark_connect_file (new_bookmark);
|
|
|
|
return new_bookmark;
|
|
}
|
|
|
|
static GtkWidget *
|
|
create_image_widget_for_bookmark (NautilusBookmark *bookmark)
|
|
{
|
|
GdkPixbuf *pixbuf;
|
|
GtkWidget *widget;
|
|
|
|
pixbuf = nautilus_bookmark_get_pixbuf (bookmark, GTK_ICON_SIZE_MENU);
|
|
if (pixbuf == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
widget = gtk_image_new_from_pixbuf (pixbuf);
|
|
|
|
g_object_unref (pixbuf);
|
|
return widget;
|
|
}
|
|
|
|
/**
|
|
* nautilus_bookmark_menu_item_new:
|
|
*
|
|
* Return a menu item representing a bookmark.
|
|
* @bookmark: The bookmark the menu item represents.
|
|
* Return value: A newly-created bookmark, not yet shown.
|
|
**/
|
|
GtkWidget *
|
|
nautilus_bookmark_menu_item_new (NautilusBookmark *bookmark)
|
|
{
|
|
GtkWidget *menu_item;
|
|
GtkWidget *image_widget;
|
|
GtkLabel *label;
|
|
|
|
menu_item = gtk_image_menu_item_new_with_label (bookmark->details->name);
|
|
label = GTK_LABEL (GTK_BIN (menu_item)->child);
|
|
gtk_label_set_use_underline (label, FALSE);
|
|
gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
|
|
gtk_label_set_max_width_chars (label, ELLIPSISED_MENU_ITEM_MIN_CHARS);
|
|
|
|
image_widget = create_image_widget_for_bookmark (bookmark);
|
|
if (image_widget != NULL) {
|
|
gtk_widget_show (image_widget);
|
|
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (menu_item),
|
|
image_widget);
|
|
}
|
|
|
|
return menu_item;
|
|
}
|
|
|
|
gboolean
|
|
nautilus_bookmark_uri_known_not_to_exist (NautilusBookmark *bookmark)
|
|
{
|
|
char *path_name;
|
|
gboolean exists;
|
|
|
|
/* Convert to a path, returning FALSE if not local. */
|
|
if (!g_file_is_native (bookmark->details->location)) {
|
|
return FALSE;
|
|
}
|
|
path_name = g_file_get_path (bookmark->details->location);
|
|
|
|
/* Now check if the file exists (sync. call OK because it is local). */
|
|
exists = g_file_test (path_name, G_FILE_TEST_EXISTS);
|
|
g_free (path_name);
|
|
|
|
return !exists;
|
|
}
|
|
|
|
void
|
|
nautilus_bookmark_set_scroll_pos (NautilusBookmark *bookmark,
|
|
const char *uri)
|
|
{
|
|
g_free (bookmark->details->scroll_file);
|
|
bookmark->details->scroll_file = g_strdup (uri);
|
|
}
|
|
|
|
char *
|
|
nautilus_bookmark_get_scroll_pos (NautilusBookmark *bookmark)
|
|
{
|
|
return g_strdup (bookmark->details->scroll_file);
|
|
}
|