moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 398 insertions, 0 deletions

diff --git a/plugins/housekeeping/gsd-ldsm-trash-empty.c b/plugins/housekeeping/gsd-ldsm-trash-empty.c
new file mode 100644
index 0000000..d4ea183
--- /dev/null
+++ b/plugins/housekeeping/gsd-ldsm-trash-empty.c
@@ -0,0 +1,398 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * gsd-ldsm-trash-empty.c
+ * Copyright (C) Chris Coulson 2009 <[email protected]>
+ *	     (C) Ryan Lortie 2008
+ *
+ * gsd-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.
+ *
+ * gsd-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 "gsd-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
+gsd_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 ();
+}