/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ /* nautilus-bookmark.c - implementation of individual bookmarks. Copyright (C) 1999, 2000 Eazel, Inc. The Gnome Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The Gnome Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the Gnome Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Authors: John Sullivan */ #include #include "nautilus-bookmark.h" #include "nautilus-icon-factory.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include enum { APPEARANCE_CHANGED, CONTENTS_CHANGED, LAST_SIGNAL }; #define GENERIC_BOOKMARK_ICON_NAME "gnome-fs-bookmark" #define MISSING_BOOKMARK_ICON_NAME "gnome-fs-bookmark-missing" static guint signals[LAST_SIGNAL]; struct NautilusBookmarkDetails { char *name; char *uri; char *icon; NautilusFile *file; }; static void nautilus_bookmark_connect_file (NautilusBookmark *file); static void nautilus_bookmark_disconnect_file (NautilusBookmark *file); GNOME_CLASS_BOILERPLATE (NautilusBookmark, nautilus_bookmark, GtkObject, GTK_TYPE_OBJECT) /* GtkObject methods. */ static void nautilus_bookmark_finalize (GObject *object) { NautilusBookmark *bookmark; g_assert (NAUTILUS_IS_BOOKMARK (object)); bookmark = NAUTILUS_BOOKMARK (object); nautilus_bookmark_disconnect_file (bookmark); g_free (bookmark->details->name); g_free (bookmark->details->uri); g_free (bookmark->details->icon); g_free (bookmark->details); G_OBJECT_CLASS (parent_class)->finalize (object); } /* Initialization. */ static void nautilus_bookmark_class_init (NautilusBookmarkClass *class) { G_OBJECT_CLASS (class)->finalize = nautilus_bookmark_finalize; signals[APPEARANCE_CHANGED] = g_signal_new ("appearance_changed", G_TYPE_FROM_CLASS (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NautilusBookmarkClass, appearance_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[CONTENTS_CHANGED] = g_signal_new ("contents_changed", G_TYPE_FROM_CLASS (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NautilusBookmarkClass, contents_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void nautilus_bookmark_instance_init (NautilusBookmark *bookmark) { bookmark->details = g_new0 (NautilusBookmarkDetails, 1); } /** * nautilus_bookmark_compare_with: * * Check whether two bookmarks are considered identical. * @a: first NautilusBookmark*. * @b: second NautilusBookmark*. * * Return value: 0 if @a and @b have same name and uri, 1 otherwise * (GCompareFunc style) **/ int nautilus_bookmark_compare_with (gconstpointer a, gconstpointer b) { NautilusBookmark *bookmark_a; NautilusBookmark *bookmark_b; g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (a), 1); g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (b), 1); bookmark_a = NAUTILUS_BOOKMARK (a); bookmark_b = NAUTILUS_BOOKMARK (b); if (strcmp (bookmark_a->details->name, bookmark_b->details->name) != 0) { return 1; } if (!eel_uris_match (bookmark_a->details->uri, bookmark_b->details->uri)) { return 1; } return 0; } /** * nautilus_bookmark_compare_uris: * * Check whether the uris of two bookmarks are for the same location. * @a: first NautilusBookmark*. * @b: second NautilusBookmark*. * * Return value: 0 if @a and @b have matching uri, 1 otherwise * (GCompareFunc style) **/ int nautilus_bookmark_compare_uris (gconstpointer a, gconstpointer b) { NautilusBookmark *bookmark_a; NautilusBookmark *bookmark_b; g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (a), 1); g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (b), 1); bookmark_a = NAUTILUS_BOOKMARK (a); bookmark_b = NAUTILUS_BOOKMARK (b); return !eel_uris_match (bookmark_a->details->uri, bookmark_b->details->uri); } NautilusBookmark * nautilus_bookmark_copy (NautilusBookmark *bookmark) { g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), NULL); return nautilus_bookmark_new_with_icon ( bookmark->details->uri, bookmark->details->name, bookmark->details->icon); } char * nautilus_bookmark_get_name (NautilusBookmark *bookmark) { g_return_val_if_fail(NAUTILUS_IS_BOOKMARK (bookmark), NULL); return g_strdup (bookmark->details->name); } GdkPixbuf * nautilus_bookmark_get_pixbuf (NautilusBookmark *bookmark, guint icon_size, gboolean optimize_for_anti_aliasing) { GdkPixbuf *result; char *icon; g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), NULL); icon = nautilus_bookmark_get_icon (bookmark); if (icon == NULL) { return NULL; } result = nautilus_icon_factory_get_pixbuf_for_icon (icon, NULL, NULL, icon_size, NULL, TRUE, NULL); g_free (icon); return result; } char * nautilus_bookmark_get_icon (NautilusBookmark *bookmark) { g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), NULL); /* Try to connect a file in case file exists now but didn't earlier. */ nautilus_bookmark_connect_file (bookmark); return g_strdup (bookmark->details->icon); } char * nautilus_bookmark_get_uri (NautilusBookmark *bookmark) { g_return_val_if_fail(NAUTILUS_IS_BOOKMARK (bookmark), NULL); /* Try to connect a file in case file exists now but didn't earlier. * This allows a bookmark to update its image properly in the case * where a new file appears with the same URI as a previously-deleted * file. Calling connect_file here means that attempts to activate the * bookmark will update its image if possible. */ nautilus_bookmark_connect_file (bookmark); return g_strdup (bookmark->details->uri); } /** * nautilus_bookmark_set_name: * * Change the user-displayed name of a bookmark. * @new_name: The new user-displayed name for this bookmark, mustn't be NULL. * * Returns: TRUE if the name changed else FALSE. **/ gboolean nautilus_bookmark_set_name (NautilusBookmark *bookmark, const char *new_name) { g_return_val_if_fail (new_name != NULL, FALSE); g_return_val_if_fail (NAUTILUS_IS_BOOKMARK (bookmark), FALSE); if (strcmp (new_name, bookmark->details->name) == 0) { return FALSE; } g_free (bookmark->details->name); bookmark->details->name = g_strdup (new_name); g_signal_emit (bookmark, signals[APPEARANCE_CHANGED], 0); return TRUE; } static gboolean nautilus_bookmark_icon_is_different (NautilusBookmark *bookmark, char *new_icon) { g_assert (NAUTILUS_IS_BOOKMARK (bookmark)); g_assert (new_icon != NULL); return eel_strcmp (bookmark->details->icon, new_icon) != 0; } /** * Update icon if there's a better one available. * Return TRUE if the icon changed. */ static gboolean nautilus_bookmark_update_icon (NautilusBookmark *bookmark) { char *new_icon; g_assert (NAUTILUS_IS_BOOKMARK (bookmark)); if (bookmark->details->file == NULL) { return FALSE; } if (nautilus_icon_factory_is_icon_ready_for_file (bookmark->details->file)) { new_icon = nautilus_icon_factory_get_icon_for_file (bookmark->details->file); if (nautilus_bookmark_icon_is_different (bookmark, new_icon)) { g_free (bookmark->details->icon); bookmark->details->icon = new_icon; return TRUE; } g_free (new_icon); } return FALSE; } static void bookmark_file_changed_callback (NautilusFile *file, NautilusBookmark *bookmark) { char *file_uri; gboolean should_emit_appearance_changed_signal; gboolean should_emit_contents_changed_signal; g_assert (NAUTILUS_IS_FILE (file)); g_assert (NAUTILUS_IS_BOOKMARK (bookmark)); g_assert (file == bookmark->details->file); should_emit_appearance_changed_signal = FALSE; should_emit_contents_changed_signal = FALSE; file_uri = nautilus_file_get_uri (file); if (!eel_uris_match (bookmark->details->uri, file_uri)) { g_free (bookmark->details->uri); bookmark->details->uri = file_uri; should_emit_contents_changed_signal = TRUE; } else { g_free (file_uri); } if (nautilus_file_is_gone (file)) { /* The file we were monitoring has been deleted, * or moved in a way that we didn't notice. Make * a spanking new NautilusFile object for this * location so if a new file appears in this place * we will notice. */ nautilus_bookmark_disconnect_file (bookmark); nautilus_bookmark_connect_file (bookmark); should_emit_appearance_changed_signal = TRUE; } else if (nautilus_bookmark_update_icon (bookmark)) { /* File hasn't gone away, but it has changed * in a way that affected its icon. */ should_emit_appearance_changed_signal = TRUE; } if (should_emit_appearance_changed_signal) { g_signal_emit (bookmark, signals[APPEARANCE_CHANGED], 0); } if (should_emit_contents_changed_signal) { g_signal_emit (bookmark, signals[CONTENTS_CHANGED], 0); } } /** * nautilus_bookmark_set_icon_to_default: * * Reset the icon to either the missing bookmark icon or the generic * bookmark icon, depending on whether the file still exists. */ static void nautilus_bookmark_set_icon_to_default (NautilusBookmark *bookmark) { const char *icon_name; g_free (bookmark->details->icon); if (nautilus_bookmark_uri_known_not_to_exist (bookmark)) { icon_name = MISSING_BOOKMARK_ICON_NAME; } else { icon_name = GENERIC_BOOKMARK_ICON_NAME; } bookmark->details->icon = g_strdup (icon_name); } /** * nautilus_bookmark_new: * * Create a new NautilusBookmark from a text uri and a display name. * The initial icon for the bookmark will be based on the information * already available without any explicit action on NautilusBookmark's * part. * * @uri: Any uri, even a malformed or non-existent one. * @name: A string to display to the user as the bookmark's name. * * Return value: A newly allocated NautilusBookmark. * **/ NautilusBookmark * nautilus_bookmark_new (const char *uri, const char *name) { return nautilus_bookmark_new_with_icon (uri, name, NULL); } static void nautilus_bookmark_disconnect_file (NautilusBookmark *bookmark) { g_assert (NAUTILUS_IS_BOOKMARK (bookmark)); if (bookmark->details->file != NULL) { g_signal_handlers_disconnect_by_func (bookmark->details->file, G_CALLBACK (bookmark_file_changed_callback), bookmark); nautilus_file_unref (bookmark->details->file); bookmark->details->file = NULL; } if (bookmark->details->icon != NULL) { g_free (bookmark->details->icon); bookmark->details->icon = NULL; } } static void nautilus_bookmark_connect_file (NautilusBookmark *bookmark) { g_assert (NAUTILUS_IS_BOOKMARK (bookmark)); if (bookmark->details->file != NULL) { return; } if (!nautilus_bookmark_uri_known_not_to_exist (bookmark)) { bookmark->details->file = nautilus_file_get (bookmark->details->uri); 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); } } } NautilusBookmark * nautilus_bookmark_new_with_icon (const char *uri, const char *name, const char *icon) { NautilusBookmark *new_bookmark; new_bookmark = NAUTILUS_BOOKMARK (g_object_new (NAUTILUS_TYPE_BOOKMARK, NULL)); g_object_ref (new_bookmark); gtk_object_sink (GTK_OBJECT (new_bookmark)); new_bookmark->details->name = g_strdup (name); new_bookmark->details->uri = g_strdup (uri); new_bookmark->details->icon = g_strdup (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, NAUTILUS_ICON_SIZE_FOR_MENUS, FALSE); 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; GtkWidget *label; char *display_name; menu_item = gtk_image_menu_item_new (); 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); } display_name = eel_truncate_text_for_menu_item (bookmark->details->name); label = gtk_label_new (display_name); g_free (display_name); gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5); gtk_container_add (GTK_CONTAINER (menu_item), label); gtk_widget_show (label); 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. */ path_name = gnome_vfs_get_local_path_from_uri (bookmark->details->uri); if (path_name == NULL) { return FALSE; } /* 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; }