ported nautilus-elementary UNDO-REDO (bzr rev 60)

author: Stefano Karapetsas <[email protected]> 2011-12-26 19:52:59 +0100
committer: Stefano Karapetsas <[email protected]> 2011-12-26 19:52:59 +0100
commit: cdd4cad2ce3930bf1d484ab12371a5d6a354ea00 (patch)
tree: 029f4f723976e1480812a984e81b8e961e14d39c /libcaja-private/caja-undostack-manager.c
parent: 390b49cb93699309e1250143e744b2e61ac81cfe (diff)
download: caja-cdd4cad2ce3930bf1d484ab12371a5d6a354ea00.tar.bz2
caja-cdd4cad2ce3930bf1d484ab12371a5d6a354ea00.tar.xz
1 files changed, 1988 insertions, 0 deletions
diff --git a/libcaja-private/caja-undostack-manager.c b/libcaja-private/caja-undostack-manager.c
new file mode 100644
index 00000000..0b63e972
--- /dev/null
+++ b/libcaja-private/caja-undostack-manager.c
@@ -0,0 +1,1988 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+
+/* CajaUndoStackManager - Manages undo of file operations (implementation)
+ *
+ * Copyright (C) 2007-2010 Amos Brocco
+ * Copyright (C) 2011 Stefano Karapetsas
+ *
+ * Authors: Amos Brocco <[email protected]>,
+ * Stefano Karapetsas <[email protected]>
+ *
+ * This library 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 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "caja-undostack-manager.h"
+#include "caja-file-operations.h"
+#include "caja-file.h"
+#include <gio/gio.h>
+#include <glib/gprintf.h>
+#include <glib-object.h>
+#include <glib/gi18n.h>
+#include <locale.h>
+#include <gdk/gdk.h>
+#include <eel/eel-glib-extensions.h>
+
+/* *****************************************************************
+ Private fields
+ ***************************************************************** */
+
+struct _CajaUndoStackActionData
+{
+ /* Common stuff */
+ CajaUndoStackActionType type;
+ gboolean isValid;
+ gboolean locked; /* True if the action is being undone/redone */
+ gboolean freed; /* True if the action must be freed after undo/redo */
+ guint count; /* Size of affected uris (count of items) */
+ CajaUndoStackManager *manager; /* Pointer to the manager */
+
+ /* Copy / Move stuff */
+ GFile *src_dir;
+ GFile *dest_dir;
+ GList *sources; /* Relative to src_dir */
+ GList *destinations; /* Relative to dest_dir */
+
+ /* Cached labels/descriptions */
+ char *undo_label;
+ char *undo_description;
+ char *redo_label;
+ char *redo_description;
+
+ /* Create new file/folder stuff/set permissions */
+ char *template;
+ char *target_uri;
+
+ /* Rename stuff */
+ char *old_uri;
+ char *new_uri;
+
+ /* Trash stuff */
+ GHashTable *trashed;
+
+ /* Recursive change permissions stuff */
+ GHashTable *original_permissions;
+ guint32 dir_mask;
+ guint32 dir_permissions;
+ guint32 file_mask;
+ guint32 file_permissions;
+
+ /* Single file change permissions stuff */
+ guint32 current_permissions;
+ guint32 new_permissions;
+
+ /* Group */
+ char *original_group_name_or_id;
+ char *new_group_name_or_id;
+
+ /* Owner */
+ char *original_user_name_or_id;
+ char *new_user_name_or_id;
+
+};
+
+struct _CajaUndoStackManagerPrivate
+{
+ /* Private fields */
+ GQueue *stack;
+ guint undo_levels;
+ guint index;
+ GMutex *mutex; /* Used to protect access to stack (because of async file ops) */
+ gboolean dispose_has_run;
+ gboolean undo_redo_flag;
+ gboolean confirm_delete;
+};
+
+#define CAJA_UNDOSTACK_MANAGER_GET_PRIVATE(o) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((o), TYPE_CAJA_UNDOSTACK_MANAGER, CajaUndoStackManagerPrivate))
+
+/* *****************************************************************
+ Properties management prototypes
+ ***************************************************************** */
+enum
+{
+ PROP_UNDOSTACK_MANAGER_0, PROP_UNDO_LEVELS, PROP_CONFIRM_DELETE
+};
+
+static void caja_undostack_manager_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec);
+
+static void caja_undostack_manager_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec);
+
+/* *****************************************************************
+ Destructors prototypes
+ ***************************************************************** */
+static void caja_undostack_manager_finalize (GObject * object);
+
+static void caja_undostack_manager_dispose (GObject * object);
+
+/* *****************************************************************
+ Type definition
+ ***************************************************************** */
+G_DEFINE_TYPE (CajaUndoStackManager, caja_undostack_manager,
+ G_TYPE_OBJECT);
+
+/* *****************************************************************
+ Private methods prototypes
+ ***************************************************************** */
+
+static void stack_clear_n_oldest (GQueue * stack, guint n);
+
+static void stack_fix_size (CajaUndoStackManagerPrivate * priv);
+
+static gboolean can_undo (CajaUndoStackManagerPrivate * priv);
+
+static gboolean can_redo (CajaUndoStackManagerPrivate * priv);
+
+static void stack_push_action (CajaUndoStackManagerPrivate * priv,
+ CajaUndoStackActionData * action);
+
+static CajaUndoStackActionData
+ * stack_scroll_left (CajaUndoStackManagerPrivate * priv);
+
+static CajaUndoStackActionData
+ * stack_scroll_right (CajaUndoStackManagerPrivate * priv);
+
+static CajaUndoStackActionData
+ * get_next_redo_action (CajaUndoStackManagerPrivate * priv);
+
+static CajaUndoStackActionData
+ * get_next_undo_action (CajaUndoStackManagerPrivate * priv);
+
+static gchar *get_undo_label (CajaUndoStackActionData * action);
+
+static gchar *get_undo_description (CajaUndoStackActionData * action);
+
+static gchar *get_redo_label (CajaUndoStackActionData * action);
+
+static gchar *get_redo_description (CajaUndoStackActionData * action);
+
+static void do_menu_update (CajaUndoStackManager * manager);
+
+static void free_undostack_action (gpointer data, gpointer user_data);
+
+static void undostack_dispose_all (GQueue * queue);
+
+static void undo_redo_done_transfer_callback (GHashTable * debuting_uris,
+ gpointer data);
+
+static void undo_redo_op_callback (gpointer callback_data);
+
+static void undo_redo_done_rename_callback (CajaFile * file,
+ GFile * result_location, GError * error, gpointer callback_data);
+
+static void undo_redo_done_delete_callback (GHashTable * debuting_uris,
+ gboolean user_cancel, gpointer callback_data);
+
+static void undo_redo_done_create_callback (GFile * new_file,
+ gpointer callback_data);
+
+static void clear_redo_actions (CajaUndoStackManagerPrivate * priv);
+
+static gchar *get_first_target_short_name (CajaUndoStackActionData *
+ action);
+
+static GList *construct_gfile_list (const GList * urilist, GFile * parent);
+
+static GList *construct_gfile_list_from_uri (char *uri);
+
+static GList *uri_list_to_gfile_list (GList * urilist);
+
+static char *get_uri_basename (char *uri);
+
+static char *get_uri_parent (char *uri);
+
+static char *get_uri_parent_path (char *uri);
+
+static GHashTable *retrieve_files_to_restore (GHashTable * trashed);
+
+/* *****************************************************************
+ Base functions
+ ***************************************************************** */
+static void
+caja_undostack_manager_class_init (CajaUndoStackManagerClass * klass)
+{
+ GParamSpec *undo_levels;
+ GParamSpec *confirm_delete;
+ GObjectClass *g_object_class;
+
+ /* Add private structure */
+ g_type_class_add_private (klass, sizeof (CajaUndoStackManagerPrivate));
+
+ /* Create properties */
+ undo_levels = g_param_spec_uint ("undo-levels", "undo levels",
+ "Number of undo levels to be stored",
+ 1, UINT_MAX, 30, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
+
+ confirm_delete =
+ g_param_spec_boolean ("confirm-delete", "confirm delete",
+ "Always confirm file deletion", FALSE,
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
+
+ /* Set properties get/set methods */
+ g_object_class = G_OBJECT_CLASS (klass);
+
+ g_object_class->set_property = caja_undostack_manager_set_property;
+ g_object_class->get_property = caja_undostack_manager_get_property;
+
+ /* Install properties */
+ g_object_class_install_property (g_object_class, PROP_UNDO_LEVELS,
+ undo_levels);
+
+ g_object_class_install_property (g_object_class, PROP_CONFIRM_DELETE,
+ confirm_delete);
+
+ /* The UI menu needs to update its status */
+ g_signal_new ("request-menu-update",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE |
+ G_SIGNAL_NO_HOOKS, 0, NULL, NULL,
+ g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER);
+
+ /* Hook deconstructors */
+ g_object_class->dispose = caja_undostack_manager_dispose;
+ g_object_class->finalize = caja_undostack_manager_finalize;
+}
+
+static void
+caja_undostack_manager_init (CajaUndoStackManager * self)
+{
+ CajaUndoStackManagerPrivate *priv;
+
+ priv = CAJA_UNDOSTACK_MANAGER_GET_PRIVATE (self);
+
+ self->priv = priv;
+
+ /* Initialize private fields */
+ priv->stack = g_queue_new ();
+ priv->mutex = g_mutex_new ();
+ priv->index = 0;
+ priv->dispose_has_run = FALSE;
+ priv->undo_redo_flag = FALSE;
+ priv->confirm_delete = FALSE;
+}
+
+static void
+caja_undostack_manager_dispose (GObject * object)
+{
+ CajaUndoStackManager *self = CAJA_UNDOSTACK_MANAGER (object);
+ CajaUndoStackManagerPrivate *priv = self->priv;
+
+ if (priv->dispose_has_run)
+ return;
+
+ g_mutex_lock (priv->mutex);
+
+ /* Free each undoable action in the stack and the stack itself */
+ undostack_dispose_all (priv->stack);
+ g_queue_free (priv->stack);
+ g_mutex_unlock (priv->mutex);
+
+ g_mutex_free (priv->mutex);
+
+ priv->dispose_has_run = TRUE;
+
+ G_OBJECT_CLASS (caja_undostack_manager_parent_class)->dispose (object);
+}
+
+static void
+caja_undostack_manager_finalize (GObject * object)
+{
+ G_OBJECT_CLASS (caja_undostack_manager_parent_class)->finalize (object);
+}
+
+/* *****************************************************************
+ Property management
+ ***************************************************************** */
+static void
+caja_undostack_manager_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ g_return_if_fail (IS_CAJA_UNDOSTACK_MANAGER (object));
+
+ CajaUndoStackManager *manager = CAJA_UNDOSTACK_MANAGER (object);
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+ guint new_undo_levels;
+
+ switch (prop_id) {
+ case PROP_UNDO_LEVELS:
+ new_undo_levels = g_value_get_uint (value);
+ if (new_undo_levels > 0 && (priv->undo_levels != new_undo_levels)) {
+ priv->undo_levels = new_undo_levels;
+ g_mutex_lock (priv->mutex);
+ stack_fix_size (priv);
+ g_mutex_unlock (priv->mutex);
+ do_menu_update (manager);
+ }
+ break;
+ case PROP_CONFIRM_DELETE:
+ priv->confirm_delete = g_value_get_boolean (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+caja_undostack_manager_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ g_return_if_fail (IS_CAJA_UNDOSTACK_MANAGER (object));
+
+ CajaUndoStackManager *manager = CAJA_UNDOSTACK_MANAGER (object);
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+
+ switch (prop_id) {
+ case PROP_UNDO_LEVELS:
+ g_value_set_uint (value, priv->undo_levels);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/* *****************************************************************
+ Public methods
+ ***************************************************************** */
+
+/** ****************************************************************
+ * Returns the undo stack manager instance (singleton pattern)
+ ** ****************************************************************/
+CajaUndoStackManager *
+caja_undostack_manager_instance (void)
+{
+ static CajaUndoStackManager *manager = NULL;
+
+ if (manager == NULL) {
+ manager =
+ g_object_new (TYPE_CAJA_UNDOSTACK_MANAGER, "undo-levels", 32, NULL);
+ }
+
+ return manager;
+}
+
+/** ****************************************************************
+ * True if undoing / redoing
+ ** ****************************************************************/
+gboolean
+caja_undostack_manager_is_undo_redo (CajaUndoStackManager * manager)
+{
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+ if (priv->undo_redo_flag) {
+ priv->undo_redo_flag = FALSE;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+void
+caja_undostack_manager_request_menu_update (CajaUndoStackManager *
+ manager)
+{
+ do_menu_update (manager);
+}
+
+/** ****************************************************************
+ * Redoes the last file operation
+ ** ****************************************************************/
+void
+caja_undostack_manager_redo (CajaUndoStackManager * manager,
+ GtkWidget * parent_view, CajaUndostackFinishCallback cb)
+{
+ GList *uris;
+ CajaFile *file;
+ char *new_name;
+ char *puri;
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+
+ g_mutex_lock (priv->mutex);
+
+ CajaUndoStackActionData *action = stack_scroll_left (priv);
+
+ /* Action will be NULL if redo is not possible */
+ if (action != NULL) {
+ action->locked = TRUE;
+ }
+
+ g_mutex_unlock (priv->mutex);
+
+ do_menu_update (manager);
+
+ if (action != NULL) {
+ action->locked = TRUE; /* Remember to unlock when redo is finished */
+ priv->undo_redo_flag = TRUE;
+ switch (action->type) {
+ case CAJA_UNDOSTACK_COPY:
+ uris = construct_gfile_list (action->sources, action->src_dir);
+ caja_file_operations_copy (uris, NULL,
+ action->dest_dir, NULL, undo_redo_done_transfer_callback, action);
+ eel_g_object_list_free (uris);
+ break;
+ case CAJA_UNDOSTACK_CREATEFILEFROMTEMPLATE:
+ puri = get_uri_parent (action->target_uri);
+ new_name = get_uri_basename (action->target_uri);
+ caja_file_operations_new_file_from_template (NULL,
+ NULL,
+ puri,
+ new_name, action->template, undo_redo_done_create_callback, action);
+ g_free (puri);
+ g_free (new_name);
+ break;
+ case CAJA_UNDOSTACK_DUPLICATE:
+ uris = construct_gfile_list (action->sources, action->src_dir);
+ caja_file_operations_duplicate (uris, NULL, NULL,
+ undo_redo_done_transfer_callback, action);
+ eel_g_object_list_free (uris);
+ break;
+ case CAJA_UNDOSTACK_RESTOREFROMTRASH:
+ case CAJA_UNDOSTACK_MOVE:
+ uris = construct_gfile_list (action->sources, action->src_dir);
+ caja_file_operations_move (uris, NULL,
+ action->dest_dir, NULL, undo_redo_done_transfer_callback, action);
+ eel_g_object_list_free (uris);
+ break;
+ case CAJA_UNDOSTACK_RENAME:
+ new_name = get_uri_basename (action->new_uri);
+ file = caja_file_get_by_uri (action->old_uri);
+ caja_file_rename (file, new_name,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ g_free (new_name);
+ break;
+ case CAJA_UNDOSTACK_CREATEEMPTYFILE:
+ puri = get_uri_parent (action->target_uri);
+ new_name = get_uri_basename (action->target_uri);
+ caja_file_operations_new_file (NULL, NULL, puri,
+ new_name,
+ action->template,
+ 0, undo_redo_done_create_callback, action);
+ g_free (puri);
+ g_free (new_name);
+ break;
+ case CAJA_UNDOSTACK_CREATEFOLDER:
+ puri = get_uri_parent (action->target_uri);
+ caja_file_operations_new_folder (NULL, NULL, puri,
+ undo_redo_done_create_callback, action);
+ g_free (puri);
+ break;
+ case CAJA_UNDOSTACK_MOVETOTRASH:
+ if (g_hash_table_size (action->trashed) > 0) {
+ GList *uri_to_trash = g_hash_table_get_keys (action->trashed);
+ uris = uri_list_to_gfile_list (uri_to_trash);
+ priv->undo_redo_flag = TRUE;
+ caja_file_operations_trash_or_delete
+ (uris, NULL, undo_redo_done_delete_callback, action);
+ g_list_free (uri_to_trash);
+ eel_g_object_list_free (uris);
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATELINK:
+ uris = construct_gfile_list (action->sources, action->src_dir);
+ caja_file_operations_link (uris, NULL,
+ action->dest_dir, NULL, undo_redo_done_transfer_callback, action);
+ eel_g_object_list_free (uris);
+ break;
+ case CAJA_UNDOSTACK_SETPERMISSIONS:
+ file = caja_file_get_by_uri (action->target_uri);
+ caja_file_set_permissions (file,
+ action->new_permissions, undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ break;
+ case CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS:
+ puri = g_file_get_uri (action->dest_dir);
+ caja_file_set_permissions_recursive (puri,
+ action->file_permissions,
+ action->file_mask,
+ action->dir_permissions,
+ action->dir_mask, undo_redo_op_callback, action);
+ g_free (puri);
+ break;
+ case CAJA_UNDOSTACK_CHANGEGROUP:
+ file = caja_file_get_by_uri (action->target_uri);
+ caja_file_set_group (file,
+ action->new_group_name_or_id,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ break;
+ case CAJA_UNDOSTACK_CHANGEOWNER:
+ file = caja_file_get_by_uri (action->target_uri);
+ caja_file_set_owner (file,
+ action->new_user_name_or_id,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ break;
+ case CAJA_UNDOSTACK_DELETE:
+ default:
+ priv->undo_redo_flag = FALSE;
+ break; /* We shouldn't be here */
+ }
+ }
+
+ (*cb) ((gpointer) parent_view);
+}
+
+/** ****************************************************************
+ * Undoes the last file operation
+ ** ****************************************************************/
+void
+caja_undostack_manager_undo (CajaUndoStackManager * manager,
+ GtkWidget * parent_view, CajaUndostackFinishCallback cb)
+{
+ GList *uris = NULL;
+ GHashTable *files_to_restore;
+ CajaFile *file;
+ char *new_name;
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+
+ g_mutex_lock (priv->mutex);
+
+ CajaUndoStackActionData *action = stack_scroll_right (priv);
+
+ if (action != NULL) {
+ action->locked = TRUE;
+ }
+
+ g_mutex_unlock (priv->mutex);
+
+ do_menu_update (manager);
+
+ if (action != NULL) {
+ priv->undo_redo_flag = TRUE;
+ switch (action->type) {
+ case CAJA_UNDOSTACK_CREATEEMPTYFILE:
+ case CAJA_UNDOSTACK_CREATEFILEFROMTEMPLATE:
+ case CAJA_UNDOSTACK_CREATEFOLDER:
+ uris = construct_gfile_list_from_uri (action->target_uri);
+ case CAJA_UNDOSTACK_COPY:
+ case CAJA_UNDOSTACK_DUPLICATE:
+ case CAJA_UNDOSTACK_CREATELINK:
+ if (!uris) {
+ uris = construct_gfile_list (action->destinations, action->dest_dir);
+ uris = g_list_reverse (uris); // Deleting must be done in reverse
+ }
+ if (priv->confirm_delete) {
+ caja_file_operations_delete (uris, NULL,
+ undo_redo_done_delete_callback, action);
+ eel_g_object_list_free (uris);
+ } else {
+ /* We skip the confirmation message
+ */
+ GList *f;
+ for (f = uris; f != NULL; f = f->next) {
+ char *name;
+ name = g_file_get_uri (f->data);
+ g_free (name);
+ g_file_delete (f->data, NULL, NULL);
+ g_object_unref (f->data);
+ }
+ g_list_free (uris);
+ /* Here we must do what's necessary for the callback */
+ undo_redo_done_transfer_callback (NULL, action);
+ }
+ break;
+ case CAJA_UNDOSTACK_RESTOREFROMTRASH:
+ uris = construct_gfile_list (action->destinations, action->dest_dir);
+ caja_file_operations_trash_or_delete (uris, NULL,
+ undo_redo_done_delete_callback, action);
+ eel_g_object_list_free (uris);
+ break;
+ case CAJA_UNDOSTACK_MOVETOTRASH:
+ files_to_restore = retrieve_files_to_restore (action->trashed);
+ if (g_hash_table_size (files_to_restore) > 0) {
+ GList *l;
+ GList *gfiles_in_trash = g_hash_table_get_keys (files_to_restore);
+ GFile *item;
+ GFile *dest;
+ char *value;
+
+ for (l = gfiles_in_trash; l != NULL; l = l->next) {
+ item = l->data;
+ value = g_hash_table_lookup (files_to_restore, item);
+ dest = g_file_new_for_uri (value);
+ g_file_move (item, dest,
+ G_FILE_COPY_NOFOLLOW_SYMLINKS, NULL, NULL, NULL, NULL);
+ g_object_unref (dest);
+ }
+
+ g_list_free (gfiles_in_trash);
+ }
+ g_hash_table_destroy (files_to_restore);
+ /* Here we must do what's necessary for the callback */
+ undo_redo_done_transfer_callback (NULL, action);
+ break;
+ case CAJA_UNDOSTACK_MOVE:
+ uris = construct_gfile_list (action->destinations, action->dest_dir);
+ caja_file_operations_move (uris, NULL,
+ action->src_dir, NULL, undo_redo_done_transfer_callback, action);
+ eel_g_object_list_free (uris);
+ break;
+ case CAJA_UNDOSTACK_RENAME:
+ new_name = get_uri_basename (action->old_uri);
+ file = caja_file_get_by_uri (action->new_uri);
+ caja_file_rename (file, new_name,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ g_free (new_name);
+ break;
+ case CAJA_UNDOSTACK_SETPERMISSIONS:
+ file = caja_file_get_by_uri (action->target_uri);
+ caja_file_set_permissions (file,
+ action->current_permissions,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ break;
+ case CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS:
+ if (g_hash_table_size (action->original_permissions) > 0) {
+ GList *gfiles_list =
+ g_hash_table_get_keys (action->original_permissions);
+ guint32 *perm;
+ GList *l;
+ GFile *dest;
+ char *item;
+
+ for (l = gfiles_list; l != NULL; l = l->next) {
+ item = l->data;
+ perm = g_hash_table_lookup (action->original_permissions, item);
+ dest = g_file_new_for_uri (item);
+ g_file_set_attribute_uint32 (dest,
+ G_FILE_ATTRIBUTE_UNIX_MODE,
+ *perm, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL, NULL);
+ g_object_unref (dest);
+ }
+
+ g_list_free (gfiles_list);
+ /* Here we must do what's necessary for the callback */
+ undo_redo_done_transfer_callback (NULL, action);
+ }
+ break;
+ case CAJA_UNDOSTACK_CHANGEGROUP:
+ file = caja_file_get_by_uri (action->target_uri);
+ caja_file_set_group (file,
+ action->original_group_name_or_id,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ break;
+ case CAJA_UNDOSTACK_CHANGEOWNER:
+ file = caja_file_get_by_uri (action->target_uri);
+ caja_file_set_owner (file,
+ action->original_user_name_or_id,
+ undo_redo_done_rename_callback, action);
+ g_object_unref (file);
+ break;
+ case CAJA_UNDOSTACK_DELETE:
+ default:
+ priv->undo_redo_flag = FALSE;
+ break; /* We shouldn't be here */
+ }
+ }
+
+ (*cb) ((gpointer) parent_view);
+}
+
+/** ****************************************************************
+ * Adds an operation to the stack
+ ** ****************************************************************/
+void
+caja_undostack_manager_add_action (CajaUndoStackManager * manager,
+ CajaUndoStackActionData * action)
+{
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+
+ if (!action)
+ return;
+
+ if (!(action && action->isValid)) {
+ free_undostack_action ((gpointer) action, NULL);
+ return;
+ }
+
+ action->manager = manager;
+
+ g_mutex_lock (priv->mutex);
+
+ stack_push_action (priv, action);
+
+ g_mutex_unlock (priv->mutex);
+
+ do_menu_update (manager);
+
+}
+
+/** ****************************************************************
+ * Callback after emptying the trash
+ ** ****************************************************************/
+void
+caja_undostack_manager_trash_has_emptied (CajaUndoStackManager *
+ manager)
+{
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+
+ /* Clear actions from the oldest to the newest move to trash */
+
+ g_mutex_lock (priv->mutex);
+
+ clear_redo_actions (priv);
+
+ /* Search newest move to trash */
+ guint i;
+ guint length = g_queue_get_length (priv->stack);
+ guint newest_move_to_trash_position = -1;
+ CajaUndoStackActionData *action = NULL;
+
+ for (i = 0; i < length; i++) {
+ action = (CajaUndoStackActionData *)
+ g_queue_peek_nth (priv->stack, i);
+ if (action->type == CAJA_UNDOSTACK_MOVETOTRASH) {
+ newest_move_to_trash_position = i;
+ break;
+ }
+ }
+
+ if (newest_move_to_trash_position >= 0) {
+ guint to_clear = length - newest_move_to_trash_position;
+ stack_clear_n_oldest (priv->stack, to_clear);
+ }
+
+ g_mutex_unlock (priv->mutex);
+}
+
+/** ****************************************************************
+ * Returns the modification time for the given file (used for undo trash)
+ ** ****************************************************************/
+guint64
+caja_undostack_manager_get_file_modification_time (GFile * file)
+{
+ GFileInfo *info;
+ guint64 mtime;
+
+ info = g_file_query_info (file, G_FILE_ATTRIBUTE_TIME_MODIFIED,
+ G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, FALSE, NULL);
+ if (info == NULL) {
+ return -1;
+ }
+
+ mtime = g_file_info_get_attribute_uint64 (info,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED);
+
+ g_object_unref (info);
+
+ return mtime;
+}
+
+/** ****************************************************************
+ * Returns a new undo data container
+ ** ****************************************************************/
+CajaUndoStackActionData *
+caja_undostack_manager_data_new (CajaUndoStackActionType type,
+ gint items_count)
+{
+ CajaUndoStackActionData *data =
+ g_slice_new0 (CajaUndoStackActionData);
+ data->type = type;
+ data->count = items_count;
+
+ if (type == CAJA_UNDOSTACK_MOVETOTRASH) {
+ data->trashed =
+ g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+ } else if (type == CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS) {
+ data->original_permissions =
+ g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+ }
+
+ return data;
+}
+
+/** ****************************************************************
+ * Sets the source directory
+ ** ****************************************************************/
+void
+caja_undostack_manager_data_set_src_dir (CajaUndoStackActionData *
+ data, GFile * src)
+{
+ if (!data)
+ return;
+
+ data->src_dir = src;
+}
+
+/** ****************************************************************
+ * Sets the destination directory
+ ** ****************************************************************/
+void
+caja_undostack_manager_data_set_dest_dir (CajaUndoStackActionData *
+ data, GFile * dest)
+{
+ if (!data)
+ return;
+
+ data->dest_dir = dest;
+}
+
+/** ****************************************************************
+ * Pushes an origin, target pair in an existing undo data container
+ ** ****************************************************************/
+void caja_undostack_manager_data_add_origin_target_pair
+ (CajaUndoStackActionData * data, GFile * origin, GFile * target)
+{
+
+ if (!data)
+ return;
+
+ char *src_relative = g_file_get_relative_path (data->src_dir, origin);
+ data->sources = g_list_append (data->sources, src_relative);
+ char *dest_relative = g_file_get_relative_path (data->dest_dir, target);
+ data->destinations = g_list_append (data->destinations, dest_relative);
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Pushes an trashed file with modification time in an existing undo data container
+ ** ****************************************************************/
+void
+caja_undostack_manager_data_add_trashed_file (CajaUndoStackActionData
+ * data, GFile * file, guint64 mtime)
+{
+
+ if (!data)
+ return;
+
+ guint64 *modificationTime;
+ modificationTime = (guint64 *) malloc (sizeof (guint64));
+ *modificationTime = mtime;
+
+ char *originalURI = g_file_get_uri (file);
+
+ g_hash_table_insert (data->trashed, originalURI, modificationTime);
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Pushes a recursive permission change data in an existing undo data container
+ ** ****************************************************************/
+void caja_undostack_manager_data_add_file_permissions
+ (CajaUndoStackActionData * data, GFile * file, guint32 permission)
+{
+
+ if (!data)
+ return;
+
+ guint32 *currentPermission;
+ currentPermission = (guint32 *) malloc (sizeof (guint32));
+ *currentPermission = permission;
+
+ char *originalURI = g_file_get_uri (file);
+
+ g_hash_table_insert (data->original_permissions, originalURI,
+ currentPermission);
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Sets the original file permission in an existing undo data container
+ ** ****************************************************************/
+void caja_undostack_manager_data_set_file_permissions
+ (CajaUndoStackActionData * data, char *uri,
+ guint32 current_permissions, guint32 new_permissions)
+{
+
+ if (!data)
+ return;
+
+ data->target_uri = uri;
+
+ data->current_permissions = current_permissions;
+ data->new_permissions = new_permissions;
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Sets the change owner information in an existing undo data container
+ ** ****************************************************************/
+void caja_undostack_manager_data_set_owner_change_information
+ (CajaUndoStackActionData * data, char *uri,
+ const char *current_user, const char *new_user)
+{
+
+ if (!data)
+ return;
+
+ data->target_uri = uri;
+
+ data->original_user_name_or_id = g_strdup (current_user);
+ data->new_user_name_or_id = g_strdup (new_user);
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Sets the change group information in an existing undo data container
+ ** ****************************************************************/
+void caja_undostack_manager_data_set_group_change_information
+ (CajaUndoStackActionData * data, char *uri,
+ const char *current_group, const char *new_group)
+{
+
+ if (!data)
+ return;
+
+ data->target_uri = uri;
+
+ data->original_group_name_or_id = g_strdup (current_group);
+ data->new_group_name_or_id = g_strdup (new_group);
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Sets the permission change mask
+ ** ****************************************************************/
+void caja_undostack_manager_data_set_recursive_permissions
+ (CajaUndoStackActionData * data, guint32 file_permissions,
+ guint32 file_mask, guint32 dir_permissions, guint32 dir_mask)
+{
+
+ if (!data)
+ return;
+
+ data->file_permissions = file_permissions;
+ data->file_mask = file_mask;
+ data->dir_permissions = dir_permissions;
+ data->dir_mask = dir_mask;
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Sets create file information
+ ** ****************************************************************/
+void
+caja_undostack_manager_data_set_create_data (CajaUndoStackActionData *
+ data, char *target_uri, char *template)
+{
+
+ if (!data)
+ return;
+
+ data->template = g_strdup (template);
+ data->target_uri = g_strdup (target_uri);
+
+ data->isValid = TRUE;
+}
+
+/** ****************************************************************
+ * Sets rename information
+ ** ****************************************************************/
+void caja_undostack_manager_data_set_rename_information
+ (CajaUndoStackActionData * data, GFile * old_file, GFile * new_file)
+{
+
+ if (!data)
+ return;
+
+ data->old_uri = g_file_get_uri (old_file);
+ data->new_uri = g_file_get_uri (new_file);
+
+ data->isValid = TRUE;
+}
+
+/* *****************************************************************
+ Private methods (nothing to see here, move along)
+ ***************************************************************** */
+
+static CajaUndoStackActionData *
+stack_scroll_right (CajaUndoStackManagerPrivate * priv)
+{
+ gpointer data = NULL;
+
+ if (!can_undo (priv))
+ return NULL;
+
+ data = g_queue_peek_nth (priv->stack, priv->index);
+ if (priv->index < g_queue_get_length (priv->stack)) {
+ priv->index++;
+ }
+
+ return data;
+}
+
+/** ---------------------------------------------------------------- */
+static CajaUndoStackActionData *
+stack_scroll_left (CajaUndoStackManagerPrivate * priv)
+{
+ gpointer data = NULL;
+
+ if (!can_redo (priv))
+ return NULL;
+
+ priv->index--;
+ data = g_queue_peek_nth (priv->stack, priv->index);
+
+ return data;
+}
+
+/** ---------------------------------------------------------------- */
+static void
+stack_clear_n_oldest (GQueue * stack, guint n)
+{
+ CajaUndoStackActionData *action;
+ guint i;
+
+ for (i = 0; i < n; i++) {
+ action = (CajaUndoStackActionData *)
+ g_queue_pop_tail (stack);
+ if (action->locked) {
+ action->freed = TRUE;
+ } else {
+ free_undostack_action (action, NULL);
+ }
+ }
+}
+
+/** ---------------------------------------------------------------- */
+static void
+stack_fix_size (CajaUndoStackManagerPrivate * priv)
+{
+ guint length = g_queue_get_length (priv->stack);
+
+ if (length > priv->undo_levels) {
+ if (priv->index > (priv->undo_levels + 1)) {
+ /* If the index will fall off the stack
+ * move it back to the maximum position */
+ priv->index = priv->undo_levels + 1;
+ }
+ stack_clear_n_oldest (priv->stack, length - (priv->undo_levels));
+ }
+}
+
+/** ---------------------------------------------------------------- */
+static void
+clear_redo_actions (CajaUndoStackManagerPrivate * priv)
+{
+ while (priv->index > 0) {
+ CajaUndoStackActionData *head = (CajaUndoStackActionData *)
+ g_queue_pop_head (priv->stack);
+ free_undostack_action (head, NULL);
+ priv->index--;
+ }
+}
+
+/** ---------------------------------------------------------------- */
+static void
+stack_push_action (CajaUndoStackManagerPrivate * priv,
+ CajaUndoStackActionData * action)
+{
+ guint length;
+
+ clear_redo_actions (priv);
+
+ g_queue_push_head (priv->stack, (gpointer) action);
+ length = g_queue_get_length (priv->stack);
+
+ if (length > priv->undo_levels) {
+ stack_fix_size (priv);
+ }
+}
+
+/** ---------------------------------------------------------------- */
+static gchar *
+get_first_target_short_name (CajaUndoStackActionData * action)
+{
+ GList *targets_first;
+ gchar *file_name;
+
+ targets_first = g_list_first (action->destinations);
+ file_name = (gchar *) g_strdup (targets_first->data);
+
+ return file_name;
+}
+
+/** ---------------------------------------------------------------- */
+static gchar *
+get_undo_description (CajaUndoStackActionData * action)
+{
+ gchar *description = NULL;
+ gchar *source = NULL;
+ guint count;
+
+ if (action != NULL) {
+ if (action->undo_description == NULL) {
+ if (action->src_dir) {
+ source = g_file_get_path (action->src_dir);
+ }
+ count = action->count;
+ switch (action->type) {
+ case CAJA_UNDOSTACK_COPY:
+ if (count != 1) {
+ description = g_strdup_printf (_("Delete %d copied items"), count);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description = g_strdup_printf (_("Delete '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_DUPLICATE:
+ if (count != 1) {
+ description =
+ g_strdup_printf (_("Delete %d duplicated items"), count);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description = g_strdup_printf (_("Delete '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_MOVE:
+ if (count != 1) {
+ description =
+ g_strdup_printf (_
+ ("Move %d items back to '%s'"), count, source);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description =
+ g_strdup_printf (_("Move '%s' back to '%s'"), name, source);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_RENAME:
+ {
+ char *from_name = get_uri_basename (action->new_uri);
+ char *to_name = get_uri_basename (action->old_uri);
+ description =
+ g_strdup_printf (_("Rename '%s' as '%s'"), from_name, to_name);
+ g_free (from_name);
+ g_free (to_name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATEFILEFROMTEMPLATE:
+ case CAJA_UNDOSTACK_CREATEEMPTYFILE:
+ case CAJA_UNDOSTACK_CREATEFOLDER:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description = g_strdup_printf (_("Delete '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_MOVETOTRASH:
+ {
+ count = g_hash_table_size (action->trashed);
+ if (count != 1) {
+ description =
+ g_strdup_printf (_("Restore %d items from trash"), count);
+ } else {
+ GList *keys = g_hash_table_get_keys (action->trashed);
+ GList *first = g_list_first (keys);
+ char *item = (char *) first->data;
+ char *name = get_uri_basename (item);
+ char *orig_path = get_uri_parent_path (item);
+ description =
+ g_strdup_printf (_("Restore '%s' to '%s'"), name, orig_path);
+ g_free (name);
+ g_free (orig_path);
+ g_list_free (keys);
+ }
+ }
+ break;
+ case CAJA_UNDOSTACK_RESTOREFROMTRASH:
+ {
+ if (count != 1) {
+ description =
+ g_strdup_printf (_("Move %d items back to trash"), count);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description = g_strdup_printf (_("Move '%s' back to trash"), name);
+ g_free (name);
+ }
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATELINK:
+ {
+ if (count != 1) {
+ description =
+ g_strdup_printf (_("Delete links to %d items"), count);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description = g_strdup_printf (_("Delete link to '%s'"), name);
+ g_free (name);
+ }
+ }
+ break;
+ case CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS:
+ {
+ char *name = g_file_get_path (action->dest_dir);
+ description =
+ g_strdup_printf (_
+ ("Restore original permissions of items enclosed in '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_SETPERMISSIONS:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description =
+ g_strdup_printf (_("Restore original permissions of '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CHANGEGROUP:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description =
+ g_strdup_printf (_
+ ("Restore group of '%s' to '%s'"),
+ name, action->original_group_name_or_id);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CHANGEOWNER:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description =
+ g_strdup_printf (_
+ ("Restore owner of '%s' to '%s'"),
+ name, action->original_user_name_or_id);
+ g_free (name);
+ }
+ break;
+ default:
+ break;
+ }
+ if (source) {
+ g_free (source);
+ }
+ action->undo_description = description;
+ } else {
+ return action->undo_description;
+ }
+ }
+
+ return description;
+}
+
+/** ---------------------------------------------------------------- */
+static gchar *
+get_redo_description (CajaUndoStackActionData * action)
+{
+ gchar *description = NULL;
+ gchar *destination = NULL;
+ guint count;
+
+ if (action != NULL) {
+ if (action->redo_description == NULL) {
+ if (action->dest_dir) {
+ destination = g_file_get_path (action->dest_dir);
+ }
+ count = action->count;
+ switch (action->type) {
+ case CAJA_UNDOSTACK_COPY:
+ if (count != 1) {
+ description =
+ g_strdup_printf (_
+ ("Copy %d items to '%s'"), count, destination);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description =
+ g_strdup_printf (_("Copy '%s' to '%s'"), name, destination);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_DUPLICATE:
+ if (count != 1) {
+ description =
+ g_strdup_printf (_
+ ("Duplicate of %d items in '%s'"), count, destination);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description =
+ g_strdup_printf (_
+ ("Duplicate '%s' in '%s'"), name, destination);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_MOVE:
+ if (count != 1) {
+ description =
+ g_strdup_printf (_
+ ("Move %d items to '%s'"), count, destination);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description =
+ g_strdup_printf (_("Move '%s' to '%s'"), name, destination);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_RENAME:
+ {
+ char *from_name = get_uri_basename (action->old_uri);
+ char *to_name = get_uri_basename (action->new_uri);
+ description =
+ g_strdup_printf (_("Rename '%s' as '%s'"), from_name, to_name);
+ g_free (from_name);
+ g_free (to_name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATEFILEFROMTEMPLATE:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description =
+ g_strdup_printf (_("Create new file '%s' from template "), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATEEMPTYFILE:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description = g_strdup_printf (_("Create an empty file '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATEFOLDER:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description = g_strdup_printf (_("Create a new folder '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_MOVETOTRASH:
+ {
+ count = g_hash_table_size (action->trashed);
+ if (count != 1) {
+ description = g_strdup_printf (_("Move %d items to trash"), count);
+ } else {
+ GList *keys = g_hash_table_get_keys (action->trashed);
+ GList *first = g_list_first (keys);
+ char *item = (char *) first->data;
+ char *name = get_uri_basename (item);
+ description = g_strdup_printf (_("Move '%s' to trash"), name);
+ g_free (name);
+ g_list_free (keys);
+ }
+ }
+ break;
+ case CAJA_UNDOSTACK_RESTOREFROMTRASH:
+ {
+ if (count != 1) {
+ description =
+ g_strdup_printf (_("Restore %d items from trash"), count);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description = g_strdup_printf (_("Restore '%s' from trash"), name);
+ g_free (name);
+ }
+ }
+ break;
+ case CAJA_UNDOSTACK_CREATELINK:
+ {
+ if (count != 1) {
+ description =
+ g_strdup_printf (_("Create links to %d items"), count);
+ } else {
+ gchar *name = get_first_target_short_name (action);
+ description = g_strdup_printf (_("Create link to '%s'"), name);
+ g_free (name);
+ }
+ }
+ break;
+ case CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS:
+ {
+ char *name = g_file_get_path (action->dest_dir);
+ description =
+ g_strdup_printf (_("Set permissions of items enclosed in '%s'"),
+ name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_SETPERMISSIONS:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description = g_strdup_printf (_("Set permissions of '%s'"), name);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CHANGEGROUP:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description =
+ g_strdup_printf (_
+ ("Set group of '%s' to '%s'"),
+ name, action->new_group_name_or_id);
+ g_free (name);
+ }
+ break;
+ case CAJA_UNDOSTACK_CHANGEOWNER:
+ {
+ char *name = get_uri_basename (action->target_uri);
+ description =
+ g_strdup_printf (_
+ ("Set owner of '%s' to '%s'"), name, action->new_user_name_or_id);
+ g_free (name);
+ }
+ break;
+ default:
+ break;
+ }
+ if (destination) {
+ g_free (destination);
+ }
+ action->redo_description = description;
+ } else {
+ return action->redo_description;
+ }
+ }
+
+ return description;
+}
+
+/** ---------------------------------------------------------------- */
+static gchar *
+get_undo_label (CajaUndoStackActionData * action)
+{
+ gchar *label = NULL;
+ guint count;
+
+ if (action != NULL) {
+ if (action->undo_label == NULL) {
+ count = action->count;
+ switch (action->type) {
+ case CAJA_UNDOSTACK_COPY:
+ label = g_strdup_printf (ngettext
+ ("_Undo copy of %d item",
+ "_Undo copy of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_DUPLICATE:
+ label = g_strdup_printf (ngettext
+ ("_Undo duplicate of %d item",
+ "_Undo duplicate of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_MOVE:
+ label = g_strdup_printf (ngettext
+ ("_Undo move of %d item",
+ "_Undo move of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_RENAME:
+ label = g_strdup_printf (ngettext
+ ("_Undo rename of %d item",
+ "_Undo rename of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CREATEEMPTYFILE:
+ label = g_strdup_printf (_("_Undo creation of an empty file"));
+ break;
+ case CAJA_UNDOSTACK_CREATEFILEFROMTEMPLATE:
+ label = g_strdup_printf (_("_Undo creation of a file from template"));
+ break;
+ case CAJA_UNDOSTACK_CREATEFOLDER:
+ label = g_strdup_printf (ngettext
+ ("_Undo creation of %d folder",
+ "_Undo creation of %d folders", count), count);
+ break;
+ case CAJA_UNDOSTACK_MOVETOTRASH:
+ label = g_strdup_printf (ngettext
+ ("_Undo move to trash of %d item",
+ "_Undo move to trash of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_RESTOREFROMTRASH:
+ label = g_strdup_printf (ngettext
+ ("_Undo restore from trash of %d item",
+ "_Undo restore from trash of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CREATELINK:
+ label = g_strdup_printf (ngettext
+ ("_Undo create link to %d item",
+ "_Undo create link to %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_DELETE:
+ label = g_strdup_printf (ngettext
+ ("_Undo delete of %d item",
+ "_Undo delete of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS:
+ label = g_strdup_printf (ngettext
+ ("Undo recursive change permissions of %d item",
+ "Undo recursive change permissions of %d items",
+ count), count);
+ break;
+ case CAJA_UNDOSTACK_SETPERMISSIONS:
+ label = g_strdup_printf (ngettext
+ ("Undo change permissions of %d item",
+ "Undo change permissions of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CHANGEGROUP:
+ label = g_strdup_printf (ngettext
+ ("Undo change group of %d item",
+ "Undo change group of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CHANGEOWNER:
+ label = g_strdup_printf (ngettext
+ ("Undo change owner of %d item",
+ "Undo change owner of %d items", count), count);
+ break;
+ default:
+ break;
+ }
+ action->undo_label = label;
+ } else {
+ return action->undo_label;
+ }
+ }
+
+ return label;
+}
+
+/** ---------------------------------------------------------------- */
+static gchar *
+get_redo_label (CajaUndoStackActionData * action)
+{
+ gchar *label = NULL;
+ guint count;
+
+ if (action != NULL) {
+ if (action->redo_label == NULL) {
+ count = action->count;
+ switch (action->type) {
+ case CAJA_UNDOSTACK_COPY:
+ label = g_strdup_printf (ngettext
+ ("_Redo copy of %d item",
+ "_Redo copy of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_DUPLICATE:
+ label = g_strdup_printf (ngettext
+ ("_Redo duplicate of %d item",
+ "_Redo duplicate of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_MOVE:
+ label = g_strdup_printf (ngettext
+ ("_Redo move of %d item",
+ "_Redo move of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_RENAME:
+ label = g_strdup_printf (ngettext
+ ("_Redo rename of %d item",
+ "_Redo rename of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CREATEEMPTYFILE:
+ label = g_strdup_printf (_("_Redo creation of an empty file"));
+ break;
+ case CAJA_UNDOSTACK_CREATEFILEFROMTEMPLATE:
+ label = g_strdup_printf (_("_Redo creation of a file from template"));
+ break;
+ case CAJA_UNDOSTACK_CREATEFOLDER:
+ label = g_strdup_printf (ngettext
+ ("_Redo creation of %d folder",
+ "_Redo creation of %d folders", count), count);
+ break;
+ case CAJA_UNDOSTACK_MOVETOTRASH:
+ label = g_strdup_printf (ngettext
+ ("_Redo move to trash of %d item",
+ "_Redo move to trash of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_RESTOREFROMTRASH:
+ label = g_strdup_printf (ngettext
+ ("_Redo restore from trash of %d item",
+ "_Redo restore from trash of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CREATELINK:
+ label = g_strdup_printf (ngettext
+ ("_Redo create link to %d item",
+ "_Redo create link to %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_DELETE:
+ label = g_strdup_printf (ngettext
+ ("_Redo delete of %d item",
+ "_Redo delete of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_RECURSIVESETPERMISSIONS:
+ label = g_strdup_printf (ngettext
+ ("Redo recursive change permissions of %d item",
+ "Redo recursive change permissions of %d items",
+ count), count);
+ break;
+ case CAJA_UNDOSTACK_SETPERMISSIONS:
+ label = g_strdup_printf (ngettext
+ ("Redo change permissions of %d item",
+ "Redo change permissions of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CHANGEGROUP:
+ label = g_strdup_printf (ngettext
+ ("Redo change group of %d item",
+ "Redo change group of %d items", count), count);
+ break;
+ case CAJA_UNDOSTACK_CHANGEOWNER:
+ label = g_strdup_printf (ngettext
+ ("Redo change owner of %d item",
+ "Redo change owner of %d items", count), count);
+ break;
+ default:
+ break;
+ }
+ action->redo_label = label;
+ } else {
+ return action->redo_label;
+ }
+ }
+
+ return label;
+}
+
+/** ---------------------------------------------------------------- */
+static void
+undo_redo_done_transfer_callback (GHashTable * debuting_uris, gpointer data)
+{
+ CajaUndoStackActionData *action;
+
+ action = (CajaUndoStackActionData *) data;
+
+ /* If the action needed to be freed but was locked, free now */
+ if (action->freed) {
+ free_undostack_action (action, NULL);
+ } else {
+ action->locked = FALSE;
+ }
+
+ /* Update menus */
+ do_menu_update (action->manager);
+}
+
+/** ---------------------------------------------------------------- */
+static void
+undo_redo_done_delete_callback (GHashTable *
+ debuting_uris, gboolean user_cancel, gpointer callback_data)
+{
+ undo_redo_done_transfer_callback (debuting_uris, callback_data);
+}
+
+/** ---------------------------------------------------------------- */
+static void
+undo_redo_done_create_callback (GFile * new_file, gpointer callback_data)
+{
+ undo_redo_done_transfer_callback (NULL, callback_data);
+}
+
+/** ---------------------------------------------------------------- */
+static void
+undo_redo_op_callback (gpointer callback_data)
+{
+ undo_redo_done_transfer_callback (NULL, callback_data);
+}
+
+/** ---------------------------------------------------------------- */
+static void
+undo_redo_done_rename_callback (CajaFile * file,
+ GFile * result_location, GError * error, gpointer callback_data)
+{
+ undo_redo_done_transfer_callback (NULL, callback_data);
+}
+
+/** ---------------------------------------------------------------- */
+static void
+free_undostack_action (gpointer data, gpointer user_data)
+{
+ CajaUndoStackActionData *action = (CajaUndoStackActionData *) data;
+
+ if (!action)
+ return;
+
+ g_free (action->template);
+ g_free (action->target_uri);
+ g_free (action->old_uri);
+ g_free (action->new_uri);
+
+ g_free (action->undo_label);
+ g_free (action->undo_description);
+ g_free (action->redo_label);
+ g_free (action->redo_description);
+
+ g_free (action->original_group_name_or_id);
+ g_free (action->original_user_name_or_id);
+ g_free (action->new_group_name_or_id);
+ g_free (action->new_user_name_or_id);
+
+ if (action->sources) {
+ g_list_foreach (action->sources, (GFunc) g_free, NULL);
+ g_list_free (action->sources);
+ }
+ if (action->destinations) {
+ g_list_foreach (action->destinations, (GFunc) g_free, NULL);
+ g_list_free (action->destinations);
+ }
+
+ if (action->trashed) {
+ g_hash_table_destroy (action->trashed);
+ }
+
+ if (action->original_permissions) {
+ g_hash_table_destroy (action->original_permissions);
+ }
+
+ if (action->src_dir)
+ g_object_unref (action->src_dir);
+ if (action->dest_dir)
+ g_object_unref (action->dest_dir);
+
+ if (action)
+ g_slice_free (CajaUndoStackActionData, action);
+}
+
+/** ---------------------------------------------------------------- */
+static void
+undostack_dispose_all (GQueue * queue)
+{
+ g_queue_foreach (queue, free_undostack_action, NULL);
+}
+
+/** ---------------------------------------------------------------- */
+static gboolean
+can_undo (CajaUndoStackManagerPrivate * priv)
+{
+ return (get_next_undo_action (priv) != NULL);
+}
+
+/** ---------------------------------------------------------------- */
+static gboolean
+can_redo (CajaUndoStackManagerPrivate * priv)
+{
+ return (get_next_redo_action (priv) != NULL);
+}
+
+/** ---------------------------------------------------------------- */
+static CajaUndoStackActionData *
+get_next_redo_action (CajaUndoStackManagerPrivate * priv)
+{
+ if (g_queue_is_empty (priv->stack)) {
+ return NULL;
+ }
+
+ if (priv->index == 0) {
+ /* ... no redo actions */
+ return NULL;
+ }
+
+ CajaUndoStackActionData *action = g_queue_peek_nth (priv->stack,
+ priv->index - 1);
+
+ if (action->locked) {
+ return NULL;
+ } else {
+ return action;
+ }
+}
+
+/** ---------------------------------------------------------------- */
+static CajaUndoStackActionData *
+get_next_undo_action (CajaUndoStackManagerPrivate * priv)
+{
+ if (g_queue_is_empty (priv->stack)) {
+ return NULL;
+ }
+
+ guint stack_size = g_queue_get_length (priv->stack);
+
+ if (priv->index == stack_size) {
+ return NULL;
+ }
+
+ CajaUndoStackActionData *action = g_queue_peek_nth (priv->stack,
+ priv->index);
+
+ if (action->locked) {
+ return NULL;
+ } else {
+ return action;
+ }
+}
+
+/** ---------------------------------------------------------------- */
+static void
+do_menu_update (CajaUndoStackManager * manager)
+{
+
+ if (!manager)
+ return;
+
+ CajaUndoStackActionData *action;
+ CajaUndoStackManagerPrivate *priv = manager->priv;
+ CajaUndoStackMenuData *data = g_slice_new0 (CajaUndoStackMenuData);
+
+ g_mutex_lock (priv->mutex);
+
+ action = get_next_undo_action (priv);
+ data->undo_label = get_undo_label (action);
+ data->undo_description = get_undo_description (action);
+
+ action = get_next_redo_action (priv);
+
+ data->redo_label = get_redo_label (action);
+ data->redo_description = get_redo_description (action);
+
+ g_mutex_unlock (priv->mutex);
+
+ /* Update menus */
+ g_signal_emit_by_name (manager, "request-menu-update", data);
+
+ /* Free the signal data */
+ // Note: we do not own labels and descriptions, they are part of the action.
+ g_slice_free (CajaUndoStackMenuData, data);
+}
+
+/** ---------------------------------------------------------------- */
+static GList *
+construct_gfile_list (const GList * urilist, GFile * parent)
+{
+ const GList *l;
+ GList *file_list = NULL;
+ GFile *file;
+
+ for (l = urilist; l != NULL; l = l->next) {
+ file = g_file_get_child (parent, l->data);
+ file_list = g_list_append (file_list, file);
+ }
+
+ return file_list;
+}
+
+/** ---------------------------------------------------------------- */
+static GList *
+construct_gfile_list_from_uri (char *uri)
+{
+ GList *file_list = NULL;
+ GFile *file;
+
+ file = g_file_new_for_uri (uri);
+ file_list = g_list_append (file_list, file);
+
+ return file_list;
+}
+
+/** ---------------------------------------------------------------- */
+static GList *
+uri_list_to_gfile_list (GList * urilist)
+{
+ const GList *l;
+ GList *file_list = NULL;
+ GFile *file;
+
+ for (l = urilist; l != NULL; l = l->next) {
+ file = g_file_new_for_uri (l->data);
+ file_list = g_list_append (file_list, file);
+ }
+
+ return file_list;
+}
+
+/** ---------------------------------------------------------------- */
+static char *
+get_uri_basename (char *uri)
+{
+ GFile *f = g_file_new_for_uri (uri);
+ char *basename = g_file_get_basename (f);
+ g_object_unref (f);
+ return basename;
+}
+
+/** ---------------------------------------------------------------- */
+static char *
+get_uri_parent (char *uri)
+{
+ GFile *f = g_file_new_for_uri (uri);
+ GFile *p = g_file_get_parent (f);
+ char *parent = g_file_get_uri (p);
+ g_object_unref (f);
+ g_object_unref (p);
+ return parent;
+}
+
+/** ---------------------------------------------------------------- */
+static char *
+get_uri_parent_path (char *uri)
+{
+ GFile *f = g_file_new_for_uri (uri);
+ GFile *p = g_file_get_parent (f);
+ char *parent = g_file_get_path (p);
+ g_object_unref (f);
+ g_object_unref (p);
+ return parent;
+}
+
+/** ---------------------------------------------------------------- */
+static GHashTable *
+retrieve_files_to_restore (GHashTable * trashed)
+{
+ GFileEnumerator *enumerator;
+ GFileInfo *info;
+ GFile *trash;
+ GFile *item;
+ guint64 mtime_item;
+ guint64 *mtime;
+ char *origpath;
+ GFile *origfile;
+ char *origuri;
+ gpointer lookupvalue;
+ GHashTable *to_restore;
+
+ to_restore =
+ g_hash_table_new_full (g_direct_hash,
+ g_direct_equal, g_object_unref, g_free);
+
+ trash = g_file_new_for_uri ("trash:");
+
+ enumerator = g_file_enumerate_children (trash,
+ G_FILE_ATTRIBUTE_STANDARD_NAME
+ ","
+ G_FILE_ATTRIBUTE_TIME_MODIFIED
+ ",trash::orig-path", G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, FALSE, NULL);
+
+ mtime = 0;
+ if (enumerator) {
+ while ((info =
+ g_file_enumerator_next_file (enumerator, NULL, NULL)) != NULL) {
+ /* Retrieve the original file uri */
+ origpath = g_file_info_get_attribute_as_string (info, "trash::orig-path");
+ origfile = g_file_new_for_path (origpath);
+ origuri = g_file_get_uri (origfile);
+ g_object_unref (origfile);
+ g_free (origpath);
+
+ lookupvalue = g_hash_table_lookup (trashed, origuri);
+
+ if (lookupvalue) {
+ mtime = (guint64 *)
+ lookupvalue;
+ mtime_item =
+ g_file_info_get_attribute_uint64
+ (info, G_FILE_ATTRIBUTE_TIME_MODIFIED);
+ if (*mtime == mtime_item) {
+ item = g_file_get_child (trash, g_file_info_get_name (info)); /* File in the trash */
+ g_hash_table_insert (to_restore, item, origuri);
+ }
+ } else {
+ g_free (origuri);
+ }
+
+ }
+ g_file_enumerator_close (enumerator, FALSE, NULL);
+ g_object_unref (enumerator);
+ }
+ g_object_unref (trash);
+
+ return to_restore;
+}
+
+/** ---------------------------------------------------------------- */
author	Stefano Karapetsas <[email protected]>	2011-12-26 19:52:59 +0100
committer	Stefano Karapetsas <[email protected]>	2011-12-26 19:52:59 +0100
commit	cdd4cad2ce3930bf1d484ab12371a5d6a354ea00 (patch)
tree	029f4f723976e1480812a984e81b8e961e14d39c /libcaja-private/caja-undostack-manager.c
parent	390b49cb93699309e1250143e744b2e61ac81cfe (diff)
download	caja-cdd4cad2ce3930bf1d484ab12371a5d6a354ea00.tar.bz2 caja-cdd4cad2ce3930bf1d484ab12371a5d6a354ea00.tar.xz