diff options
Diffstat (limited to 'plugins/housekeeping/msd-ldsm-trash-empty.c')
| -rw-r--r-- | plugins/housekeeping/msd-ldsm-trash-empty.c | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/plugins/housekeeping/msd-ldsm-trash-empty.c b/plugins/housekeeping/msd-ldsm-trash-empty.c new file mode 100644 index 0000000..05f82cd --- /dev/null +++ b/plugins/housekeeping/msd-ldsm-trash-empty.c @@ -0,0 +1,398 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * msd-ldsm-trash-empty.c + * Copyright (C) Chris Coulson 2009 <[email protected]> + * (C) Ryan Lortie 2008 + * + * msd-ldsm-trash-empty.c 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 3 of the License, or + * (at your option) any later version. + * + * msd-ldsm-trash-empty.c 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, see <http://www.gnu.org/licenses/>. + */ + +#include <mateconf/mateconf-client.h> +#include <glib/gi18n.h> +#include <gio/gio.h> + +#include "msd-ldsm-trash-empty.h" + +#define CAJA_CONFIRM_TRASH_KEY "/apps/caja/preferences/confirm_trash" + +/* Some of this code has been borrowed from the trash-applet, courtesy of Ryan Lortie */ + +static GtkWidget *trash_empty_confirm_dialog = NULL; +static GtkWidget *trash_empty_dialog = NULL; +static GtkWidget *location_label; +static GtkWidget *file_label; +static GtkWidget *progressbar; + +static gsize trash_empty_total_files; +static gboolean trash_empty_update_pending = FALSE; +static GFile *trash_empty_current_file = NULL; +static gsize trash_empty_deleted_files; +static GTimer *timer = NULL; +static gboolean trash_empty_actually_deleting; + +static gboolean +trash_empty_done (gpointer data) +{ + gtk_widget_destroy (trash_empty_dialog); + trash_empty_dialog = NULL; + if (timer) { + g_timer_destroy (timer); + timer = NULL; + } + + return FALSE; +} + +static gboolean +trash_empty_update_dialog (gpointer user_data) +{ + gsize deleted, total; + GFile *file; + gboolean actually_deleting; + + g_assert (trash_empty_update_pending); + + deleted = trash_empty_deleted_files; + total = trash_empty_total_files; + file = trash_empty_current_file; + actually_deleting = trash_empty_actually_deleting; + + /* maybe the done() got processed first. */ + if (!trash_empty_dialog) + goto out; + + if (!actually_deleting) { + /* If we havent finished counting yet, then pulse the progressbar every 100ms. + * This stops the user from thinking the dialog has frozen if there are + * a lot of files to delete. We don't pulse it every time we are called from the + * worker thread, otherwise it moves to fast and looks hideous + */ + if (timer) { + if (g_timer_elapsed (timer, NULL) > 0.1) { + gtk_progress_bar_pulse (GTK_PROGRESS_BAR (progressbar)); + g_timer_start (timer); + } + } else { + timer = g_timer_new (); + g_timer_start (timer); + gtk_progress_bar_pulse (GTK_PROGRESS_BAR (progressbar)); + } + } else { + gchar *text; + gchar *tmp; + gchar *markup; + GFile *parent; + + text = g_strdup_printf (_("Removing item %lu of %lu"), + deleted, total); + gtk_progress_bar_set_text (GTK_PROGRESS_BAR (progressbar), text); + + g_free (text); + + if (deleted > total) + gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progressbar), 1.0); + else + gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progressbar), + (gdouble) deleted / (gdouble) total); + + parent = g_file_get_parent (file); + text = g_file_get_uri (parent); + g_object_unref (parent); + + gtk_label_set_text (GTK_LABEL (location_label), text); + g_free (text); + + tmp = g_file_get_basename (file); + text = g_markup_printf_escaped (_("Removing: %s"), tmp); + markup = g_strdup_printf ("<i>%s</i>", text); + gtk_label_set_markup (GTK_LABEL (file_label), text); + g_free (markup); + g_free (text); + g_free (tmp); + + /* unhide the labels */ + gtk_widget_show_all (GTK_WIDGET (trash_empty_dialog)); + } + +out: + trash_empty_current_file = NULL; + g_object_unref (file); + + trash_empty_update_pending = FALSE; + + return FALSE; +} + +/* Worker thread begin */ + +static void +trash_empty_maybe_schedule_update (GIOSchedulerJob *job, + GFile *file, + gsize deleted, + gboolean actually_deleting) +{ + if (!trash_empty_update_pending) { + g_assert (trash_empty_current_file == NULL); + + trash_empty_current_file = g_object_ref (file); + trash_empty_deleted_files = deleted; + trash_empty_actually_deleting = actually_deleting; + + trash_empty_update_pending = TRUE; + g_io_scheduler_job_send_to_mainloop_async (job, + trash_empty_update_dialog, + NULL, NULL); + } +} + +static void +trash_empty_delete_contents (GIOSchedulerJob *job, + GCancellable *cancellable, + GFile *file, + gboolean actually_delete, + gsize *deleted) +{ + GFileEnumerator *enumerator; + GFileInfo *info; + GFile *child; + + if (g_cancellable_is_cancelled (cancellable)) + return; + + enumerator = g_file_enumerate_children (file, + G_FILE_ATTRIBUTE_STANDARD_NAME "," + G_FILE_ATTRIBUTE_STANDARD_TYPE, + G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, + cancellable, NULL); + + if (enumerator) { + while ((info = g_file_enumerator_next_file (enumerator, + cancellable, NULL)) != NULL) { + child = g_file_get_child (file, g_file_info_get_name (info)); + + if (g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY) + trash_empty_delete_contents (job, cancellable, child, + actually_delete, deleted); + + trash_empty_maybe_schedule_update (job, child, *deleted, actually_delete); + if (actually_delete) + g_file_delete (child, cancellable, NULL); + + (*deleted)++; + + g_object_unref (child); + g_object_unref (info); + + if (g_cancellable_is_cancelled (cancellable)) + break; + } + + g_object_unref (enumerator); + } +} + +static gboolean +trash_empty_job (GIOSchedulerJob *job, + GCancellable *cancellable, + gpointer user_data) +{ + gsize deleted; + GFile *trash; + + trash = g_file_new_for_uri ("trash:///"); + + /* first do a dry run to count the number of files */ + deleted = 0; + trash_empty_delete_contents (job, cancellable, trash, FALSE, &deleted); + trash_empty_total_files = deleted; + + /* now do the real thing */ + deleted = 0; + trash_empty_delete_contents (job, cancellable, trash, TRUE, &deleted); + + /* done */ + g_object_unref (trash); + g_io_scheduler_job_send_to_mainloop_async (job, + trash_empty_done, + NULL, NULL); + + return FALSE; +} + +/* Worker thread end */ + +static void +trash_empty_start () +{ + GtkWidget *vbox1, *vbox2, *hbox; + GtkWidget *label1, *label3; + gchar *markup; + GCancellable *cancellable; + + trash_empty_dialog = gtk_dialog_new (); + gtk_window_set_default_size (GTK_WINDOW (trash_empty_dialog), 400, -1); + gtk_window_set_icon_name (GTK_WINDOW (trash_empty_dialog), "user-trash"); + gtk_window_set_title (GTK_WINDOW (trash_empty_dialog), + _("Emptying the trash")); + + vbox1 = gtk_vbox_new (FALSE, 12); + vbox2 = gtk_vbox_new (FALSE, 0); + hbox = gtk_hbox_new (FALSE, 0); + + label1 = gtk_label_new (NULL); + gtk_label_set_line_wrap (GTK_LABEL (label1), TRUE); + gtk_misc_set_alignment (GTK_MISC (label1), 0.0, 0.5); + + label3 = gtk_label_new (NULL); + gtk_label_set_line_wrap (GTK_LABEL (label3), TRUE); + gtk_misc_set_alignment (GTK_MISC (label3), 0.0, 0.5); + gtk_widget_hide (label3); + + location_label = gtk_label_new (NULL); + gtk_label_set_line_wrap (GTK_LABEL (location_label), TRUE); + gtk_misc_set_alignment (GTK_MISC (location_label), 0.0, 0.5); + + file_label = gtk_label_new (NULL); + gtk_label_set_line_wrap (GTK_LABEL (file_label), TRUE); + gtk_misc_set_alignment (GTK_MISC (file_label), 0.0, 0.5); + + progressbar = gtk_progress_bar_new (); + gtk_progress_bar_set_pulse_step (GTK_PROGRESS_BAR (progressbar), 0.1); + gtk_progress_bar_set_text (GTK_PROGRESS_BAR (progressbar), _("Preparing to empty trash…")); + + gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (trash_empty_dialog))), vbox1, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox1), label1, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (hbox), label3, FALSE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (hbox), location_label, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox1), hbox, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox2), progressbar, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox2), file_label, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox1), vbox2, TRUE, TRUE, 0); + + gtk_widget_show (label1); + gtk_widget_show (vbox1); + gtk_widget_show_all (vbox2); + gtk_widget_show (hbox); + gtk_widget_show (location_label); + + gtk_container_set_border_width (GTK_CONTAINER (gtk_dialog_get_content_area (GTK_DIALOG (trash_empty_dialog))), 6); + gtk_container_set_border_width (GTK_CONTAINER (vbox1), 6); + + gtk_dialog_add_button (GTK_DIALOG (trash_empty_dialog), + GTK_STOCK_CANCEL, + GTK_RESPONSE_CANCEL); + + markup = g_markup_printf_escaped ("<big><b>%s</b></big>", _("Emptying the trash")); + gtk_label_set_markup (GTK_LABEL (label1), markup); + /* Translators: "Emptying trash from <device>" */ + gtk_label_set_text (GTK_LABEL (label3), _("From: ")); + + cancellable = g_cancellable_new (); + g_signal_connect_object (trash_empty_dialog, "response", + G_CALLBACK (g_cancellable_cancel), + cancellable, G_CONNECT_SWAPPED); + g_io_scheduler_push_job (trash_empty_job, NULL, NULL, 0, cancellable); + + gtk_widget_show (trash_empty_dialog); + + g_free (markup); + g_object_unref (cancellable); +} + +static void +trash_empty_confirmation_response (GtkDialog *dialog, + gint response_id, + gpointer user_data) +{ + if (response_id == GTK_RESPONSE_YES) + trash_empty_start (); + + gtk_object_destroy (GTK_OBJECT (dialog)); + trash_empty_confirm_dialog = NULL; +} + +static gboolean +trash_empty_require_confirmation () +{ + MateConfClient *client; + gboolean require_confirmation = TRUE; + GError *error = NULL; + + client = mateconf_client_get_default (); + if (client) { + require_confirmation = mateconf_client_get_bool (client, CAJA_CONFIRM_TRASH_KEY, &error); + if (error) { + g_warning ("Failed to read confirm_trash key from MateConf: %s", error->message ? error->message : "Unknown error"); + /* It's safest to assume that confirmation is required here */ + require_confirmation = TRUE; + g_error_free (error); + } + g_object_unref (client); + } + + return require_confirmation; +} + +static void +trash_empty_show_confirmation_dialog () +{ + GtkWidget *button; + + if (!trash_empty_require_confirmation ()) { + trash_empty_start (); + return; + } + + trash_empty_confirm_dialog = gtk_message_dialog_new (NULL, 0, + GTK_MESSAGE_WARNING, + GTK_BUTTONS_NONE, + _("Empty all of the items from the trash?")); + + gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (trash_empty_confirm_dialog), + _("If you choose to empty the trash, all items in " + "it will be permanently lost. Please note that " + "you can also delete them separately.")); + + gtk_dialog_add_button (GTK_DIALOG (trash_empty_confirm_dialog), GTK_STOCK_CANCEL, + GTK_RESPONSE_CANCEL); + + button = gtk_button_new_with_mnemonic (_("_Empty Trash")); + gtk_widget_show (button); + gtk_widget_set_can_default (button, TRUE); + + gtk_dialog_add_action_widget (GTK_DIALOG (trash_empty_confirm_dialog), + button, GTK_RESPONSE_YES); + + gtk_dialog_set_default_response (GTK_DIALOG (trash_empty_confirm_dialog), + GTK_RESPONSE_YES); + + gtk_window_set_icon_name (GTK_WINDOW (trash_empty_confirm_dialog), + "user-trash"); + + gtk_widget_show (trash_empty_confirm_dialog); + + g_signal_connect (trash_empty_confirm_dialog, "response", + G_CALLBACK (trash_empty_confirmation_response), NULL); +} + +void +msd_ldsm_trash_empty () +{ + if (trash_empty_confirm_dialog) + gtk_window_present (GTK_WINDOW (trash_empty_confirm_dialog)); + else if (trash_empty_dialog) + gtk_window_present (GTK_WINDOW (trash_empty_dialog)); + else + trash_empty_show_confirmation_dialog (); +} |