/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- nautilus-desktop-link-monitor.c: singleton thatn manages the links Copyright (C) 2003 Red Hat, 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 Place - Suite 330, Boston, MA 02111-1307, USA. Author: Alexander Larsson */ #include #include "nautilus-desktop-link-monitor.h" #include "nautilus-desktop-link.h" #include "nautilus-desktop-icon-file.h" #include "nautilus-directory.h" #include "nautilus-desktop-directory.h" #include "nautilus-global-preferences.h" #include #include #include #include #include #include #include #include #include #include #include #include #include struct NautilusDesktopLinkMonitorDetails { NautilusDirectory *desktop_dir; NautilusDesktopLink *home_link; NautilusDesktopLink *computer_link; NautilusDesktopLink *trash_link; NautilusDesktopLink *network_link; gulong mount_id; gulong unmount_id; GList *volume_links; }; static void nautilus_desktop_link_monitor_init (gpointer object, gpointer klass); static void nautilus_desktop_link_monitor_class_init (gpointer klass); EEL_CLASS_BOILERPLATE (NautilusDesktopLinkMonitor, nautilus_desktop_link_monitor, G_TYPE_OBJECT) static NautilusDesktopLinkMonitor *the_link_monitor = NULL; static void destroy_desktop_link_monitor (void) { if (the_link_monitor != NULL) { g_object_unref (the_link_monitor); } } NautilusDesktopLinkMonitor * nautilus_desktop_link_monitor_get (void) { if (the_link_monitor == NULL) { g_object_new (NAUTILUS_TYPE_DESKTOP_LINK_MONITOR, NULL); eel_debug_call_at_shutdown (destroy_desktop_link_monitor); } return the_link_monitor; } static gboolean eject_for_type (GnomeVFSDeviceType type) { switch (type) { case GNOME_VFS_DEVICE_TYPE_CDROM: case GNOME_VFS_DEVICE_TYPE_ZIP: case GNOME_VFS_DEVICE_TYPE_JAZ: return TRUE; default: return FALSE; } } static void volume_delete_dialog (GtkWidget *parent_view, NautilusDesktopLink *link) { GnomeVFSVolume *volume; char *dialog_str; char *display_name; volume = nautilus_desktop_link_get_volume (link); if (volume != NULL) { display_name = nautilus_desktop_link_get_display_name (link); dialog_str = g_strdup_printf (_("You cannot move the volume \"%s\" to the trash."), display_name); g_free (display_name); if (eject_for_type (gnome_vfs_volume_get_device_type (volume))) { eel_run_simple_dialog (parent_view, FALSE, GTK_MESSAGE_ERROR, dialog_str, _("If you want to eject the volume, please use \"Eject\" in the " "popup menu of the volume."), GTK_STOCK_OK, NULL); } else { eel_run_simple_dialog (parent_view, FALSE, GTK_MESSAGE_ERROR, dialog_str, _("If you want to unmount the volume, please use \"Unmount Volume\" in the " "popup menu of the volume."), GTK_STOCK_OK, NULL); } gnome_vfs_volume_unref (volume); g_free (dialog_str); } } void nautilus_desktop_link_monitor_delete_link (NautilusDesktopLinkMonitor *monitor, NautilusDesktopLink *link, GtkWidget *parent_view) { switch (nautilus_desktop_link_get_link_type (link)) { case NAUTILUS_DESKTOP_LINK_HOME: case NAUTILUS_DESKTOP_LINK_COMPUTER: case NAUTILUS_DESKTOP_LINK_TRASH: case NAUTILUS_DESKTOP_LINK_NETWORK: /* just ignore. We don't allow you to delete these */ break; default: volume_delete_dialog (parent_view, link); break; } } static gboolean volume_file_name_used (NautilusDesktopLinkMonitor *monitor, const char *name) { GList *l; char *other_name; gboolean same; for (l = monitor->details->volume_links; l != NULL; l = l->next) { other_name = nautilus_desktop_link_get_file_name (l->data); same = strcmp (name, other_name) == 0; g_free (other_name); if (same) { return TRUE; } } return FALSE; } char * nautilus_desktop_link_monitor_make_filename_unique (NautilusDesktopLinkMonitor *monitor, const char *filename) { char *unique_name; int i; i = 2; unique_name = g_strdup (filename); while (volume_file_name_used (monitor, unique_name)) { g_free (unique_name); unique_name = g_strdup_printf ("%s.%d", filename, i++); } return unique_name; } static void create_volume_link (NautilusDesktopLinkMonitor *monitor, GnomeVFSVolume *volume) { NautilusDesktopLink *link; link = NULL; if (!gnome_vfs_volume_is_user_visible (volume)) { return; } if (eel_preferences_get_boolean (NAUTILUS_PREFERENCES_DESKTOP_VOLUMES_VISIBLE)) { link = nautilus_desktop_link_new_from_volume (volume); monitor->details->volume_links = g_list_prepend (monitor->details->volume_links, link); } } static void volume_mounted_callback (GnomeVFSVolumeMonitor *volume_monitor, GnomeVFSVolume *volume, NautilusDesktopLinkMonitor *monitor) { create_volume_link (monitor, volume); } static void volume_unmounted_callback (GnomeVFSVolumeMonitor *volume_monitor, GnomeVFSVolume *volume, NautilusDesktopLinkMonitor *monitor) { GList *l; NautilusDesktopLink *link; GnomeVFSVolume *other_volume; link = NULL; for (l = monitor->details->volume_links; l != NULL; l = l->next) { other_volume = nautilus_desktop_link_get_volume (l->data); if (volume == other_volume) { gnome_vfs_volume_unref (other_volume); link = l->data; break; } gnome_vfs_volume_unref (other_volume); } if (link) { monitor->details->volume_links = g_list_remove (monitor->details->volume_links, link); g_object_unref (link); } } static void update_link_visibility (NautilusDesktopLinkMonitor *monitor, NautilusDesktopLink **link_ref, NautilusDesktopLinkType link_type, const char *preference_key) { if (eel_preferences_get_boolean (preference_key)) { if (*link_ref == NULL) { *link_ref = nautilus_desktop_link_new (link_type); } } else { if (*link_ref != NULL) { g_object_unref (*link_ref); *link_ref = NULL; } } } static void desktop_home_visible_changed (gpointer callback_data) { NautilusDesktopLinkMonitor *monitor; monitor = NAUTILUS_DESKTOP_LINK_MONITOR (callback_data); update_link_visibility (NAUTILUS_DESKTOP_LINK_MONITOR (monitor), &monitor->details->home_link, NAUTILUS_DESKTOP_LINK_HOME, NAUTILUS_PREFERENCES_DESKTOP_HOME_VISIBLE); } static void desktop_computer_visible_changed (gpointer callback_data) { NautilusDesktopLinkMonitor *monitor; monitor = NAUTILUS_DESKTOP_LINK_MONITOR (callback_data); update_link_visibility (NAUTILUS_DESKTOP_LINK_MONITOR (callback_data), &monitor->details->computer_link, NAUTILUS_DESKTOP_LINK_COMPUTER, NAUTILUS_PREFERENCES_DESKTOP_COMPUTER_VISIBLE); } static void desktop_trash_visible_changed (gpointer callback_data) { NautilusDesktopLinkMonitor *monitor; monitor = NAUTILUS_DESKTOP_LINK_MONITOR (callback_data); update_link_visibility (NAUTILUS_DESKTOP_LINK_MONITOR (callback_data), &monitor->details->trash_link, NAUTILUS_DESKTOP_LINK_TRASH, NAUTILUS_PREFERENCES_DESKTOP_TRASH_VISIBLE); } static void desktop_network_visible_changed (gpointer callback_data) { NautilusDesktopLinkMonitor *monitor; monitor = NAUTILUS_DESKTOP_LINK_MONITOR (callback_data); update_link_visibility (NAUTILUS_DESKTOP_LINK_MONITOR (callback_data), &monitor->details->network_link, NAUTILUS_DESKTOP_LINK_NETWORK, NAUTILUS_PREFERENCES_DESKTOP_NETWORK_VISIBLE); } static void desktop_volumes_visible_changed (gpointer callback_data) { GnomeVFSVolumeMonitor *volume_monitor; NautilusDesktopLinkMonitor *monitor; GList *l, *volumes; volume_monitor = gnome_vfs_get_volume_monitor (); monitor = NAUTILUS_DESKTOP_LINK_MONITOR (callback_data); if (eel_preferences_get_boolean (NAUTILUS_PREFERENCES_DESKTOP_VOLUMES_VISIBLE)) { if (monitor->details->volume_links == NULL) { volumes = gnome_vfs_volume_monitor_get_mounted_volumes (volume_monitor); for (l = volumes; l != NULL; l = l->next) { create_volume_link (monitor, l->data); gnome_vfs_volume_unref (l->data); } g_list_free (volumes); } } else { g_list_foreach (monitor->details->volume_links, (GFunc)g_object_unref, NULL); g_list_free (monitor->details->volume_links); monitor->details->volume_links = NULL; } } static void create_link_and_add_preference (NautilusDesktopLink **link_ref, NautilusDesktopLinkType link_type, const char *preference_key, EelPreferencesCallback callback, gpointer callback_data) { if (eel_preferences_get_boolean (preference_key)) { *link_ref = nautilus_desktop_link_new (link_type); } eel_preferences_add_callback (preference_key, callback, callback_data); } static void nautilus_desktop_link_monitor_init (gpointer object, gpointer klass) { NautilusDesktopLinkMonitor *monitor; GList *l, *volumes; GnomeVFSVolume *volume; GnomeVFSVolumeMonitor *volume_monitor; monitor = NAUTILUS_DESKTOP_LINK_MONITOR (object); the_link_monitor = monitor; monitor->details = g_new0 (NautilusDesktopLinkMonitorDetails, 1); /* We keep around a ref to the desktop dir */ monitor->details->desktop_dir = nautilus_directory_get (EEL_DESKTOP_URI); /* Default links */ create_link_and_add_preference (&monitor->details->home_link, NAUTILUS_DESKTOP_LINK_HOME, NAUTILUS_PREFERENCES_DESKTOP_HOME_VISIBLE, desktop_home_visible_changed, monitor); create_link_and_add_preference (&monitor->details->computer_link, NAUTILUS_DESKTOP_LINK_COMPUTER, NAUTILUS_PREFERENCES_DESKTOP_COMPUTER_VISIBLE, desktop_computer_visible_changed, monitor); create_link_and_add_preference (&monitor->details->trash_link, NAUTILUS_DESKTOP_LINK_TRASH, NAUTILUS_PREFERENCES_DESKTOP_TRASH_VISIBLE, desktop_trash_visible_changed, monitor); create_link_and_add_preference (&monitor->details->network_link, NAUTILUS_DESKTOP_LINK_NETWORK, NAUTILUS_PREFERENCES_DESKTOP_NETWORK_VISIBLE, desktop_network_visible_changed, monitor); /* Volume links */ volume_monitor = gnome_vfs_get_volume_monitor (); volumes = gnome_vfs_volume_monitor_get_mounted_volumes (volume_monitor); for (l = volumes; l != NULL; l = l->next) { volume = l->data; create_volume_link (monitor, volume); gnome_vfs_volume_unref (volume); } g_list_free (volumes); eel_preferences_add_callback (NAUTILUS_PREFERENCES_DESKTOP_VOLUMES_VISIBLE, desktop_volumes_visible_changed, monitor); monitor->details->mount_id = g_signal_connect_object (volume_monitor, "volume_mounted", G_CALLBACK (volume_mounted_callback), monitor, 0); monitor->details->unmount_id = g_signal_connect_object (volume_monitor, "volume_unmounted", G_CALLBACK (volume_unmounted_callback), monitor, 0); } static void remove_link_and_preference (NautilusDesktopLink **link_ref, const char *preference_key, EelPreferencesCallback callback, gpointer callback_data) { if (*link_ref != NULL) { g_object_unref (*link_ref); *link_ref = NULL; } eel_preferences_remove_callback (preference_key, callback, callback_data); } static void desktop_link_monitor_finalize (GObject *object) { NautilusDesktopLinkMonitor *monitor; monitor = NAUTILUS_DESKTOP_LINK_MONITOR (object); /* Default links */ remove_link_and_preference (&monitor->details->home_link, NAUTILUS_PREFERENCES_DESKTOP_HOME_VISIBLE, desktop_home_visible_changed, monitor); remove_link_and_preference (&monitor->details->computer_link, NAUTILUS_PREFERENCES_DESKTOP_COMPUTER_VISIBLE, desktop_computer_visible_changed, monitor); remove_link_and_preference (&monitor->details->trash_link, NAUTILUS_PREFERENCES_DESKTOP_TRASH_VISIBLE, desktop_trash_visible_changed, monitor); remove_link_and_preference (&monitor->details->network_link, NAUTILUS_PREFERENCES_DESKTOP_NETWORK_VISIBLE, desktop_network_visible_changed, monitor); /* Volumes */ g_list_foreach (monitor->details->volume_links, (GFunc)g_object_unref, NULL); g_list_free (monitor->details->volume_links); monitor->details->volume_links = NULL; nautilus_directory_unref (monitor->details->desktop_dir); monitor->details->desktop_dir = NULL; eel_preferences_remove_callback (NAUTILUS_PREFERENCES_DESKTOP_VOLUMES_VISIBLE, desktop_volumes_visible_changed, monitor); if (monitor->details->mount_id != 0) { g_source_remove (monitor->details->mount_id); } if (monitor->details->unmount_id != 0) { g_source_remove (monitor->details->unmount_id); } g_free (monitor->details); EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object)); } static void nautilus_desktop_link_monitor_class_init (gpointer klass) { GObjectClass *object_class; object_class = G_OBJECT_CLASS (klass); object_class->finalize = desktop_link_monitor_finalize; }