diff options
Diffstat (limited to 'libcaja-private/caja-desktop-link-monitor.c')
| -rw-r--r-- | libcaja-private/caja-desktop-link-monitor.c | 575 |
1 files changed, 575 insertions, 0 deletions
diff --git a/libcaja-private/caja-desktop-link-monitor.c b/libcaja-private/caja-desktop-link-monitor.c new file mode 100644 index 00000000..a88a32ea --- /dev/null +++ b/libcaja-private/caja-desktop-link-monitor.c @@ -0,0 +1,575 @@ +/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- + + caja-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 <[email protected]> +*/ + +#include <config.h> +#include "caja-desktop-link-monitor.h" +#include "caja-desktop-link.h" +#include "caja-desktop-icon-file.h" +#include "caja-directory.h" +#include "caja-desktop-directory.h" +#include "caja-global-preferences.h" + +#include <eel/eel-debug.h> +#include <eel/eel-gtk-macros.h> +#include <eel/eel-glib-extensions.h> +#include <eel/eel-vfs-extensions.h> +#include <eel/eel-stock-dialogs.h> +#include <gtk/gtk.h> +#include <glib/gi18n.h> +#include <gio/gio.h> +#include <libcaja-private/caja-trash-monitor.h> +#include <string.h> + +struct CajaDesktopLinkMonitorDetails +{ + GVolumeMonitor *volume_monitor; + CajaDirectory *desktop_dir; + + CajaDesktopLink *home_link; + CajaDesktopLink *computer_link; + CajaDesktopLink *trash_link; + CajaDesktopLink *network_link; + + gulong mount_id; + gulong unmount_id; + gulong changed_id; + + GList *mount_links; +}; + + +static void caja_desktop_link_monitor_init (gpointer object, + gpointer klass); +static void caja_desktop_link_monitor_class_init (gpointer klass); + +EEL_CLASS_BOILERPLATE (CajaDesktopLinkMonitor, + caja_desktop_link_monitor, + G_TYPE_OBJECT) + +static CajaDesktopLinkMonitor *the_link_monitor = NULL; + +static void +destroy_desktop_link_monitor (void) +{ + if (the_link_monitor != NULL) + { + g_object_unref (the_link_monitor); + } +} + +CajaDesktopLinkMonitor * +caja_desktop_link_monitor_get (void) +{ + if (the_link_monitor == NULL) + { + g_object_new (CAJA_TYPE_DESKTOP_LINK_MONITOR, NULL); + eel_debug_call_at_shutdown (destroy_desktop_link_monitor); + } + return the_link_monitor; +} + +static void +volume_delete_dialog (GtkWidget *parent_view, + CajaDesktopLink *link) +{ + GMount *mount; + char *dialog_str; + char *display_name; + + mount = caja_desktop_link_get_mount (link); + + if (mount != NULL) + { + display_name = caja_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 (g_mount_can_eject (mount)) + { + 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); + } + + g_object_unref (mount); + g_free (dialog_str); + } +} + +void +caja_desktop_link_monitor_delete_link (CajaDesktopLinkMonitor *monitor, + CajaDesktopLink *link, + GtkWidget *parent_view) +{ + switch (caja_desktop_link_get_link_type (link)) + { + case CAJA_DESKTOP_LINK_HOME: + case CAJA_DESKTOP_LINK_COMPUTER: + case CAJA_DESKTOP_LINK_TRASH: + case CAJA_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 (CajaDesktopLinkMonitor *monitor, + const char *name) +{ + GList *l; + char *other_name; + gboolean same; + + for (l = monitor->details->mount_links; l != NULL; l = l->next) + { + other_name = caja_desktop_link_get_file_name (l->data); + same = strcmp (name, other_name) == 0; + g_free (other_name); + + if (same) + { + return TRUE; + } + } + + return FALSE; +} + +char * +caja_desktop_link_monitor_make_filename_unique (CajaDesktopLinkMonitor *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 gboolean +has_mount (CajaDesktopLinkMonitor *monitor, + GMount *mount) +{ + gboolean ret; + GMount *other_mount; + GList *l; + + ret = FALSE; + + for (l = monitor->details->mount_links; l != NULL; l = l->next) + { + other_mount = caja_desktop_link_get_mount (l->data); + if (mount == other_mount) + { + g_object_unref (other_mount); + ret = TRUE; + break; + } + g_object_unref (other_mount); + } + + return ret; +} + +static void +create_mount_link (CajaDesktopLinkMonitor *monitor, + GMount *mount) +{ + CajaDesktopLink *link; + + if (has_mount (monitor, mount)) + return; + + if ((!g_mount_is_shadowed (mount)) && + eel_preferences_get_boolean (CAJA_PREFERENCES_DESKTOP_VOLUMES_VISIBLE)) + { + link = caja_desktop_link_new_from_mount (mount); + monitor->details->mount_links = g_list_prepend (monitor->details->mount_links, link); + } +} + +static void +remove_mount_link (CajaDesktopLinkMonitor *monitor, + GMount *mount) +{ + GList *l; + CajaDesktopLink *link; + GMount *other_mount; + + link = NULL; + for (l = monitor->details->mount_links; l != NULL; l = l->next) + { + other_mount = caja_desktop_link_get_mount (l->data); + if (mount == other_mount) + { + g_object_unref (other_mount); + link = l->data; + break; + } + g_object_unref (other_mount); + } + + if (link) + { + monitor->details->mount_links = g_list_remove (monitor->details->mount_links, link); + g_object_unref (link); + } +} + + + +static void +mount_added_callback (GVolumeMonitor *volume_monitor, + GMount *mount, + CajaDesktopLinkMonitor *monitor) +{ + create_mount_link (monitor, mount); +} + + +static void +mount_removed_callback (GVolumeMonitor *volume_monitor, + GMount *mount, + CajaDesktopLinkMonitor *monitor) +{ + remove_mount_link (monitor, mount); +} + +static void +mount_changed_callback (GVolumeMonitor *volume_monitor, + GMount *mount, + CajaDesktopLinkMonitor *monitor) +{ + /* TODO: update the mount with other details */ + + /* remove a mount if it goes into the shadows */ + if (g_mount_is_shadowed (mount) && has_mount (monitor, mount)) + { + remove_mount_link (monitor, mount); + } +} + +static void +update_link_visibility (CajaDesktopLinkMonitor *monitor, + CajaDesktopLink **link_ref, + CajaDesktopLinkType link_type, + const char *preference_key) +{ + if (eel_preferences_get_boolean (preference_key)) + { + if (*link_ref == NULL) + { + *link_ref = caja_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) +{ + CajaDesktopLinkMonitor *monitor; + + monitor = CAJA_DESKTOP_LINK_MONITOR (callback_data); + + update_link_visibility (CAJA_DESKTOP_LINK_MONITOR (monitor), + &monitor->details->home_link, + CAJA_DESKTOP_LINK_HOME, + CAJA_PREFERENCES_DESKTOP_HOME_VISIBLE); +} + +static void +desktop_computer_visible_changed (gpointer callback_data) +{ + CajaDesktopLinkMonitor *monitor; + + monitor = CAJA_DESKTOP_LINK_MONITOR (callback_data); + + update_link_visibility (CAJA_DESKTOP_LINK_MONITOR (callback_data), + &monitor->details->computer_link, + CAJA_DESKTOP_LINK_COMPUTER, + CAJA_PREFERENCES_DESKTOP_COMPUTER_VISIBLE); +} + +static void +desktop_trash_visible_changed (gpointer callback_data) +{ + CajaDesktopLinkMonitor *monitor; + + monitor = CAJA_DESKTOP_LINK_MONITOR (callback_data); + + update_link_visibility (CAJA_DESKTOP_LINK_MONITOR (callback_data), + &monitor->details->trash_link, + CAJA_DESKTOP_LINK_TRASH, + CAJA_PREFERENCES_DESKTOP_TRASH_VISIBLE); +} + +static void +desktop_network_visible_changed (gpointer callback_data) +{ + CajaDesktopLinkMonitor *monitor; + + monitor = CAJA_DESKTOP_LINK_MONITOR (callback_data); + + update_link_visibility (CAJA_DESKTOP_LINK_MONITOR (callback_data), + &monitor->details->network_link, + CAJA_DESKTOP_LINK_NETWORK, + CAJA_PREFERENCES_DESKTOP_NETWORK_VISIBLE); +} + +static void +desktop_volumes_visible_changed (gpointer callback_data) +{ + CajaDesktopLinkMonitor *monitor; + GList *l, *mounts; + + monitor = CAJA_DESKTOP_LINK_MONITOR (callback_data); + + if (eel_preferences_get_boolean (CAJA_PREFERENCES_DESKTOP_VOLUMES_VISIBLE)) + { + if (monitor->details->mount_links == NULL) + { + mounts = g_volume_monitor_get_mounts (monitor->details->volume_monitor); + for (l = mounts; l != NULL; l = l->next) + { + create_mount_link (monitor, l->data); + g_object_unref (l->data); + } + g_list_free (mounts); + } + } + else + { + g_list_foreach (monitor->details->mount_links, (GFunc)g_object_unref, NULL); + g_list_free (monitor->details->mount_links); + monitor->details->mount_links = NULL; + } +} + +static void +create_link_and_add_preference (CajaDesktopLink **link_ref, + CajaDesktopLinkType link_type, + const char *preference_key, + EelPreferencesCallback callback, + gpointer callback_data) +{ + if (eel_preferences_get_boolean (preference_key)) + { + *link_ref = caja_desktop_link_new (link_type); + } + + eel_preferences_add_callback (preference_key, callback, callback_data); +} + +static void +caja_desktop_link_monitor_init (gpointer object, gpointer klass) +{ + CajaDesktopLinkMonitor *monitor; + GList *l, *mounts; + GMount *mount; + + monitor = CAJA_DESKTOP_LINK_MONITOR (object); + + the_link_monitor = monitor; + + monitor->details = g_new0 (CajaDesktopLinkMonitorDetails, 1); + + monitor->details->volume_monitor = g_volume_monitor_get (); + + /* We keep around a ref to the desktop dir */ + monitor->details->desktop_dir = caja_directory_get_by_uri (EEL_DESKTOP_URI); + + /* Default links */ + + create_link_and_add_preference (&monitor->details->home_link, + CAJA_DESKTOP_LINK_HOME, + CAJA_PREFERENCES_DESKTOP_HOME_VISIBLE, + desktop_home_visible_changed, + monitor); + + create_link_and_add_preference (&monitor->details->computer_link, + CAJA_DESKTOP_LINK_COMPUTER, + CAJA_PREFERENCES_DESKTOP_COMPUTER_VISIBLE, + desktop_computer_visible_changed, + monitor); + + create_link_and_add_preference (&monitor->details->trash_link, + CAJA_DESKTOP_LINK_TRASH, + CAJA_PREFERENCES_DESKTOP_TRASH_VISIBLE, + desktop_trash_visible_changed, + monitor); + + create_link_and_add_preference (&monitor->details->network_link, + CAJA_DESKTOP_LINK_NETWORK, + CAJA_PREFERENCES_DESKTOP_NETWORK_VISIBLE, + desktop_network_visible_changed, + monitor); + + /* Mount links */ + + mounts = g_volume_monitor_get_mounts (monitor->details->volume_monitor); + for (l = mounts; l != NULL; l = l->next) + { + mount = l->data; + create_mount_link (monitor, mount); + g_object_unref (mount); + } + g_list_free (mounts); + + eel_preferences_add_callback (CAJA_PREFERENCES_DESKTOP_VOLUMES_VISIBLE, + desktop_volumes_visible_changed, + monitor); + + monitor->details->mount_id = + g_signal_connect_object (monitor->details->volume_monitor, "mount_added", + G_CALLBACK (mount_added_callback), monitor, 0); + monitor->details->unmount_id = + g_signal_connect_object (monitor->details->volume_monitor, "mount_removed", + G_CALLBACK (mount_removed_callback), monitor, 0); + monitor->details->changed_id = + g_signal_connect_object (monitor->details->volume_monitor, "mount_changed", + G_CALLBACK (mount_changed_callback), monitor, 0); + +} + +static void +remove_link_and_preference (CajaDesktopLink **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) +{ + CajaDesktopLinkMonitor *monitor; + + monitor = CAJA_DESKTOP_LINK_MONITOR (object); + + g_object_unref (monitor->details->volume_monitor); + + /* Default links */ + + remove_link_and_preference (&monitor->details->home_link, + CAJA_PREFERENCES_DESKTOP_HOME_VISIBLE, + desktop_home_visible_changed, + monitor); + + remove_link_and_preference (&monitor->details->computer_link, + CAJA_PREFERENCES_DESKTOP_COMPUTER_VISIBLE, + desktop_computer_visible_changed, + monitor); + + remove_link_and_preference (&monitor->details->trash_link, + CAJA_PREFERENCES_DESKTOP_TRASH_VISIBLE, + desktop_trash_visible_changed, + monitor); + + remove_link_and_preference (&monitor->details->network_link, + CAJA_PREFERENCES_DESKTOP_NETWORK_VISIBLE, + desktop_network_visible_changed, + monitor); + + /* Mounts */ + + g_list_foreach (monitor->details->mount_links, (GFunc)g_object_unref, NULL); + g_list_free (monitor->details->mount_links); + monitor->details->mount_links = NULL; + + caja_directory_unref (monitor->details->desktop_dir); + monitor->details->desktop_dir = NULL; + + eel_preferences_remove_callback (CAJA_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); + } + if (monitor->details->changed_id != 0) + { + g_source_remove (monitor->details->changed_id); + } + + g_free (monitor->details); + + EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object)); +} + +static void +caja_desktop_link_monitor_class_init (gpointer klass) +{ + GObjectClass *object_class; + + object_class = G_OBJECT_CLASS (klass); + + object_class->finalize = desktop_link_monitor_finalize; + +} |