Adding upstream version 43.2.upstream/43.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 522 insertions, 0 deletions

diff --git a/src/nautilus-file-name-widget-controller.c b/src/nautilus-file-name-widget-controller.c
new file mode 100644
index 0000000..db048b7
--- /dev/null
+++ b/src/nautilus-file-name-widget-controller.c
@@ -0,0 +1,522 @@
+/* nautilus-file-name-widget-controller.c
+ *
+ * Copyright (C) 2016 the Nautilus developers
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <glib/gi18n.h>
+
+#include "nautilus-file-name-widget-controller.h"
+#include "nautilus-file-utilities.h"
+
+#define FILE_NAME_DUPLICATED_LABEL_TIMEOUT 500
+
+typedef struct
+{
+    GtkWidget *error_revealer;
+    GtkWidget *error_label;
+    GtkWidget *name_entry;
+    GtkWidget *activate_button;
+    NautilusDirectory *containing_directory;
+
+    gboolean duplicated_is_folder;
+    gint duplicated_label_timeout_id;
+} NautilusFileNameWidgetControllerPrivate;
+
+enum
+{
+    NAME_ACCEPTED,
+    CANCELLED,
+    LAST_SIGNAL
+};
+
+enum
+{
+    PROP_ERROR_REVEALER = 1,
+    PROP_ERROR_LABEL,
+    PROP_NAME_ENTRY,
+    PROP_ACTION_BUTTON,
+    PROP_CONTAINING_DIRECTORY,
+    NUM_PROPERTIES
+};
+
+static guint signals[LAST_SIGNAL];
+
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (NautilusFileNameWidgetController, nautilus_file_name_widget_controller, G_TYPE_OBJECT)
+
+gchar *
+nautilus_file_name_widget_controller_get_new_name (NautilusFileNameWidgetController *self)
+{
+    return NAUTILUS_FILE_NAME_WIDGET_CONTROLLER_GET_CLASS (self)->get_new_name (self);
+}
+
+void
+nautilus_file_name_widget_controller_set_containing_directory (NautilusFileNameWidgetController *self,
+                                                               NautilusDirectory                *directory)
+{
+    g_assert (NAUTILUS_IS_DIRECTORY (directory));
+
+    g_object_set (self, "containing-directory", directory, NULL);
+}
+
+gboolean
+nautilus_file_name_widget_controller_is_name_too_long (NautilusFileNameWidgetController *self,
+                                                       gchar                            *name)
+{
+    NautilusFileNameWidgetControllerPrivate *priv;
+    size_t name_length;
+    g_autoptr (GFile) location = NULL;
+    glong max_name_length;
+
+    priv = nautilus_file_name_widget_controller_get_instance_private (self);
+    name_length = strlen (name);
+    location = nautilus_directory_get_location (priv->containing_directory);
+    max_name_length = nautilus_get_max_child_name_length_for_location (location);
+
+    if (max_name_length == -1)
+    {
+        /* We don't know, so let's give it a chance */
+        return FALSE;
+    }
+    else
+    {
+        return name_length > max_name_length + 1;
+    }
+}
+
+static gboolean
+nautilus_file_name_widget_controller_name_is_valid (NautilusFileNameWidgetController  *self,
+                                                    gchar                             *name,
+                                                    gchar                            **error_message)
+{
+    return NAUTILUS_FILE_NAME_WIDGET_CONTROLLER_GET_CLASS (self)->name_is_valid (self,
+                                                                                 name,
+                                                                                 error_message);
+}
+
+static gboolean
+nautilus_file_name_widget_controller_ignore_existing_file (NautilusFileNameWidgetController *self,
+                                                           NautilusFile                     *existing_file)
+{
+    return NAUTILUS_FILE_NAME_WIDGET_CONTROLLER_GET_CLASS (self)->ignore_existing_file (self,
+                                                                                        existing_file);
+}
+
+static gchar *
+real_get_new_name (NautilusFileNameWidgetController *self)
+{
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    priv = nautilus_file_name_widget_controller_get_instance_private (self);
+
+    return g_strstrip (g_strdup (gtk_editable_get_text (GTK_EDITABLE (priv->name_entry))));
+}
+
+static gboolean
+real_name_is_valid (NautilusFileNameWidgetController  *self,
+                    gchar                             *name,
+                    gchar                            **error_message)
+{
+    gboolean is_valid;
+
+    is_valid = TRUE;
+    if (strlen (name) == 0)
+    {
+        is_valid = FALSE;
+    }
+    else if (strstr (name, "/") != NULL)
+    {
+        is_valid = FALSE;
+        *error_message = _("File names cannot contain “/”.");
+    }
+    else if (strcmp (name, ".") == 0)
+    {
+        is_valid = FALSE;
+        *error_message = _("A file cannot be called “.”.");
+    }
+    else if (strcmp (name, "..") == 0)
+    {
+        is_valid = FALSE;
+        *error_message = _("A file cannot be called “..”.");
+    }
+    else if (nautilus_file_name_widget_controller_is_name_too_long (self, name))
+    {
+        is_valid = FALSE;
+        *error_message = _("File name is too long.");
+    }
+
+    if (is_valid && g_str_has_prefix (name, "."))
+    {
+        /* We must warn about the side effect */
+        *error_message = _("Files with “.” at the beginning of their name are hidden.");
+    }
+
+    return is_valid;
+}
+
+static gboolean
+real_ignore_existing_file (NautilusFileNameWidgetController *self,
+                           NautilusFile                     *existing_file)
+{
+    return FALSE;
+}
+
+static gboolean
+duplicated_file_label_show (NautilusFileNameWidgetController *self)
+{
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    priv = nautilus_file_name_widget_controller_get_instance_private (self);
+    if (priv->duplicated_is_folder)
+    {
+        gtk_label_set_label (GTK_LABEL (priv->error_label),
+                             _("A folder with that name already exists."));
+    }
+    else
+    {
+        gtk_label_set_label (GTK_LABEL (priv->error_label),
+                             _("A file with that name already exists."));
+    }
+
+    gtk_revealer_set_reveal_child (GTK_REVEALER (priv->error_revealer),
+                                   TRUE);
+
+    priv->duplicated_label_timeout_id = 0;
+
+    return G_SOURCE_REMOVE;
+}
+
+static void
+file_name_widget_controller_process_new_name (NautilusFileNameWidgetController *controller,
+                                              gboolean                         *duplicated_name,
+                                              gboolean                         *valid_name)
+{
+    NautilusFileNameWidgetControllerPrivate *priv;
+    g_autofree gchar *name = NULL;
+    gchar *error_message = NULL;
+    NautilusFile *existing_file;
+    priv = nautilus_file_name_widget_controller_get_instance_private (controller);
+
+    g_return_if_fail (NAUTILUS_IS_DIRECTORY (priv->containing_directory));
+
+    name = nautilus_file_name_widget_controller_get_new_name (controller);
+    *valid_name = nautilus_file_name_widget_controller_name_is_valid (controller,
+                                                                      name,
+                                                                      &error_message);
+
+    gtk_label_set_label (GTK_LABEL (priv->error_label), error_message);
+    gtk_revealer_set_reveal_child (GTK_REVEALER (priv->error_revealer),
+                                   error_message != NULL);
+
+    existing_file = nautilus_directory_get_file_by_name (priv->containing_directory, name);
+    *duplicated_name = existing_file != NULL &&
+                       !nautilus_file_name_widget_controller_ignore_existing_file (controller,
+                                                                                   existing_file);
+
+    gtk_widget_set_sensitive (priv->activate_button, *valid_name && !*duplicated_name);
+
+    if (priv->duplicated_label_timeout_id != 0)
+    {
+        g_source_remove (priv->duplicated_label_timeout_id);
+        priv->duplicated_label_timeout_id = 0;
+    }
+
+    if (*duplicated_name)
+    {
+        priv->duplicated_is_folder = nautilus_file_is_directory (existing_file);
+    }
+
+    if (existing_file != NULL)
+    {
+        nautilus_file_unref (existing_file);
+    }
+}
+
+static void
+file_name_widget_controller_on_changed_directory_info_ready (NautilusDirectory *directory,
+                                                             GList             *files,
+                                                             gpointer           user_data)
+{
+    NautilusFileNameWidgetController *controller;
+    NautilusFileNameWidgetControllerPrivate *priv;
+    gboolean duplicated_name;
+    gboolean valid_name;
+
+    controller = NAUTILUS_FILE_NAME_WIDGET_CONTROLLER (user_data);
+    priv = nautilus_file_name_widget_controller_get_instance_private (controller);
+
+    file_name_widget_controller_process_new_name (controller,
+                                                  &duplicated_name,
+                                                  &valid_name);
+
+    /* Report duplicated file only if not other message shown (for instance,
+     * folders like "." or ".." will always exists, but we consider it as an
+     * error, not as a duplicated file or if the name is the same as the file
+     * we are renaming also don't report as a duplicated */
+    if (duplicated_name && valid_name)
+    {
+        priv->duplicated_label_timeout_id = g_timeout_add (FILE_NAME_DUPLICATED_LABEL_TIMEOUT,
+                                                           (GSourceFunc) duplicated_file_label_show,
+                                                           controller);
+    }
+}
+
+static void
+file_name_widget_controller_on_changed (gpointer user_data)
+{
+    NautilusFileNameWidgetController *controller;
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    controller = NAUTILUS_FILE_NAME_WIDGET_CONTROLLER (user_data);
+    priv = nautilus_file_name_widget_controller_get_instance_private (controller);
+
+    nautilus_directory_call_when_ready (priv->containing_directory,
+                                        NAUTILUS_FILE_ATTRIBUTE_INFO,
+                                        TRUE,
+                                        file_name_widget_controller_on_changed_directory_info_ready,
+                                        controller);
+}
+
+static void
+file_name_widget_controller_on_activate_directory_info_ready (NautilusDirectory *directory,
+                                                              GList             *files,
+                                                              gpointer           user_data)
+{
+    NautilusFileNameWidgetController *controller;
+    gboolean duplicated_name;
+    gboolean valid_name;
+
+    controller = NAUTILUS_FILE_NAME_WIDGET_CONTROLLER (user_data);
+
+    file_name_widget_controller_process_new_name (controller,
+                                                  &duplicated_name,
+                                                  &valid_name);
+
+    if (valid_name && !duplicated_name)
+    {
+        g_signal_emit (controller, signals[NAME_ACCEPTED], 0);
+    }
+    else
+    {
+        /* Report duplicated file only if not other message shown (for instance,
+         * folders like "." or ".." will always exists, but we consider it as an
+         * error, not as a duplicated file) */
+        if (duplicated_name && valid_name)
+        {
+            /* Show it inmediatily since the user tried to trigger the action */
+            duplicated_file_label_show (controller);
+        }
+    }
+}
+
+static void
+file_name_widget_controller_on_activate (gpointer user_data)
+{
+    NautilusFileNameWidgetController *controller;
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    controller = NAUTILUS_FILE_NAME_WIDGET_CONTROLLER (user_data);
+    priv = nautilus_file_name_widget_controller_get_instance_private (controller);
+
+    nautilus_directory_call_when_ready (priv->containing_directory,
+                                        NAUTILUS_FILE_ATTRIBUTE_INFO,
+                                        TRUE,
+                                        file_name_widget_controller_on_activate_directory_info_ready,
+                                        controller);
+}
+
+static void
+nautilus_file_name_widget_controller_init (NautilusFileNameWidgetController *self)
+{
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    priv = nautilus_file_name_widget_controller_get_instance_private (self);
+
+    priv->containing_directory = NULL;
+}
+
+static void
+nautilus_file_name_widget_controller_set_property (GObject      *object,
+                                                   guint         prop_id,
+                                                   const GValue *value,
+                                                   GParamSpec   *pspec)
+{
+    NautilusFileNameWidgetController *controller;
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    controller = NAUTILUS_FILE_NAME_WIDGET_CONTROLLER (object);
+    priv = nautilus_file_name_widget_controller_get_instance_private (controller);
+
+    switch (prop_id)
+    {
+        case PROP_ERROR_REVEALER:
+        {
+            priv->error_revealer = GTK_WIDGET (g_value_get_object (value));
+        }
+        break;
+
+        case PROP_ERROR_LABEL:
+        {
+            priv->error_label = GTK_WIDGET (g_value_get_object (value));
+        }
+        break;
+
+        case PROP_NAME_ENTRY:
+        {
+            priv->name_entry = GTK_WIDGET (g_value_get_object (value));
+
+            g_signal_connect_swapped (G_OBJECT (priv->name_entry),
+                                      "activate",
+                                      (GCallback) file_name_widget_controller_on_activate,
+                                      controller);
+            g_signal_connect_swapped (G_OBJECT (priv->name_entry),
+                                      "changed",
+                                      (GCallback) file_name_widget_controller_on_changed,
+                                      controller);
+        }
+        break;
+
+        case PROP_ACTION_BUTTON:
+        {
+            priv->activate_button = GTK_WIDGET (g_value_get_object (value));
+
+            g_signal_connect_swapped (G_OBJECT (priv->activate_button),
+                                      "clicked",
+                                      (GCallback) file_name_widget_controller_on_activate,
+                                      controller);
+        }
+        break;
+
+        case PROP_CONTAINING_DIRECTORY:
+        {
+            g_clear_object (&priv->containing_directory);
+
+            priv->containing_directory = NAUTILUS_DIRECTORY (g_value_dup_object (value));
+        }
+        break;
+
+        default:
+        {
+            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        }
+        break;
+    }
+}
+
+static void
+nautilus_file_name_widget_controller_finalize (GObject *object)
+{
+    NautilusFileNameWidgetController *self;
+    NautilusFileNameWidgetControllerPrivate *priv;
+
+    self = NAUTILUS_FILE_NAME_WIDGET_CONTROLLER (object);
+    priv = nautilus_file_name_widget_controller_get_instance_private (self);
+
+    if (priv->containing_directory != NULL)
+    {
+        nautilus_directory_cancel_callback (priv->containing_directory,
+                                            file_name_widget_controller_on_changed_directory_info_ready,
+                                            self);
+        nautilus_directory_cancel_callback (priv->containing_directory,
+                                            file_name_widget_controller_on_activate_directory_info_ready,
+                                            self);
+        g_clear_object (&priv->containing_directory);
+    }
+
+    if (priv->duplicated_label_timeout_id > 0)
+    {
+        g_source_remove (priv->duplicated_label_timeout_id);
+        priv->duplicated_label_timeout_id = 0;
+    }
+
+    G_OBJECT_CLASS (nautilus_file_name_widget_controller_parent_class)->finalize (object);
+}
+
+static void
+nautilus_file_name_widget_controller_class_init (NautilusFileNameWidgetControllerClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+    object_class->set_property = nautilus_file_name_widget_controller_set_property;
+    object_class->finalize = nautilus_file_name_widget_controller_finalize;
+
+    klass->get_new_name = real_get_new_name;
+    klass->name_is_valid = real_name_is_valid;
+    klass->ignore_existing_file = real_ignore_existing_file;
+
+    signals[NAME_ACCEPTED] =
+        g_signal_new ("name-accepted",
+                      G_TYPE_FROM_CLASS (klass),
+                      G_SIGNAL_RUN_FIRST,
+                      G_STRUCT_OFFSET (NautilusFileNameWidgetControllerClass, name_accepted),
+                      NULL, NULL,
+                      g_cclosure_marshal_generic,
+                      G_TYPE_NONE, 0);
+    signals[CANCELLED] =
+        g_signal_new ("cancelled",
+                      G_TYPE_FROM_CLASS (klass),
+                      G_SIGNAL_RUN_LAST,
+                      0,
+                      NULL, NULL,
+                      g_cclosure_marshal_generic,
+                      G_TYPE_NONE, 0);
+
+    g_object_class_install_property (
+        object_class,
+        PROP_ERROR_REVEALER,
+        g_param_spec_object ("error-revealer",
+                             "Error Revealer",
+                             "The error label revealer",
+                             GTK_TYPE_WIDGET,
+                             G_PARAM_WRITABLE |
+                             G_PARAM_CONSTRUCT_ONLY));
+
+    g_object_class_install_property (
+        object_class,
+        PROP_ERROR_LABEL,
+        g_param_spec_object ("error-label",
+                             "Error Label",
+                             "The label used for displaying errors",
+                             GTK_TYPE_WIDGET,
+                             G_PARAM_WRITABLE |
+                             G_PARAM_CONSTRUCT_ONLY));
+    g_object_class_install_property (
+        object_class,
+        PROP_NAME_ENTRY,
+        g_param_spec_object ("name-entry",
+                             "Name Entry",
+                             "The entry for the file name",
+                             GTK_TYPE_WIDGET,
+                             G_PARAM_WRITABLE |
+                             G_PARAM_CONSTRUCT_ONLY));
+    g_object_class_install_property (
+        object_class,
+        PROP_ACTION_BUTTON,
+        g_param_spec_object ("activate-button",
+                             "Activate Button",
+                             "The activate button of the widget",
+                             GTK_TYPE_WIDGET,
+                             G_PARAM_WRITABLE |
+                             G_PARAM_CONSTRUCT_ONLY));
+    g_object_class_install_property (
+        object_class,
+        PROP_CONTAINING_DIRECTORY,
+        g_param_spec_object ("containing-directory",
+                             "Containing Directory",
+                             "The directory used to check for duplicate names",
+                             NAUTILUS_TYPE_DIRECTORY,
+                             G_PARAM_WRITABLE));
+}