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Learning_GTK4_tree/gtk/gtkplacesviewrow.c

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/* gtkplacesviewrow.c
*
* Copyright (C) 2015 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gio/gio.h>
#include "gtkplacesviewrowprivate.h"
/* As this widget is shared with Nautilus, we use this guard to
* ensure that internally we only include the files that we need
* instead of including gtk.h
*/
#ifdef GTK_COMPILATION
#include "gtkbutton.h"
#include "gtkgesture.h"
#include "gtkimage.h"
#include <glib/gi18n-lib.h>
#include "gtklabel.h"
#include "gtkspinner.h"
#include "gtkstack.h"
#include "gtktypebuiltins.h"
#include "gtknative.h"
#include "gtkpopover.h"
#else
#include <gtk/gtk.h>
#endif
struct _GtkPlacesViewRow
{
GtkListBoxRow parent_instance;
GtkLabel *available_space_label;
GtkStack *mount_stack;
GtkSpinner *busy_spinner;
GtkButton *eject_button;
GtkImage *eject_icon;
GtkImage *icon_image;
GtkLabel *name_label;
GtkLabel *path_label;
GVolume *volume;
GMount *mount;
GFile *file;
GCancellable *cancellable;
int is_network : 1;
};
G_DEFINE_TYPE (GtkPlacesViewRow, gtk_places_view_row, GTK_TYPE_LIST_BOX_ROW)
enum {
PROP_0,
PROP_ICON,
PROP_NAME,
PROP_PATH,
PROP_VOLUME,
PROP_MOUNT,
PROP_FILE,
PROP_IS_NETWORK,
LAST_PROP
};
static GParamSpec *properties [LAST_PROP];
static void
measure_available_space_finished (GObject *object,
GAsyncResult *res,
gpointer user_data)
{
GtkPlacesViewRow *row = user_data;
GFileInfo *info;
GError *error;
guint64 free_space;
guint64 total_space;
char *formatted_free_size;
char *formatted_total_size;
char *label;
guint plural_form;
error = NULL;
info = g_file_query_filesystem_info_finish (G_FILE (object),
res,
&error);
if (error)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) &&
!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_MOUNTED))
{
g_warning ("Failed to measure available space: %s", error->message);
}
g_clear_error (&error);
goto out;
}
if (!g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE) ||
!g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE))
{
g_object_unref (info);
goto out;
}
free_space = g_file_info_get_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE);
total_space = g_file_info_get_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE);
formatted_free_size = g_format_size (free_space);
formatted_total_size = g_format_size (total_space);
/* read g_format_size code in glib for further understanding */
plural_form = free_space < 1000 ? free_space : free_space % 1000 + 1000;
/* Translators: respectively, free and total space of the drive. The plural form
* should be based on the free space available.
* i.e. 1 GB / 24 GB available.
*/
label = g_strdup_printf (dngettext (GETTEXT_PACKAGE, "%s / %s available", "%s / %s available", plural_form),
formatted_free_size, formatted_total_size);
gtk_label_set_label (row->available_space_label, label);
g_object_unref (info);
g_free (formatted_total_size);
g_free (formatted_free_size);
g_free (label);
out:
g_object_unref (object);
}
static void
measure_available_space (GtkPlacesViewRow *row)
{
gboolean should_measure;
should_measure = (!row->is_network && (row->volume || row->mount || row->file));
gtk_label_set_label (row->available_space_label, "");
gtk_widget_set_visible (GTK_WIDGET (row->available_space_label), should_measure);
if (should_measure)
{
GFile *file = NULL;
if (row->file)
{
file = g_object_ref (row->file);
}
else if (row->mount)
{
file = g_mount_get_root (row->mount);
}
else if (row->volume)
{
GMount *mount;
mount = g_volume_get_mount (row->volume);
if (mount)
file = g_mount_get_root (row->mount);
g_clear_object (&mount);
}
if (file)
{
g_cancellable_cancel (row->cancellable);
g_clear_object (&row->cancellable);
row->cancellable = g_cancellable_new ();
g_file_query_filesystem_info_async (file,
G_FILE_ATTRIBUTE_FILESYSTEM_FREE "," G_FILE_ATTRIBUTE_FILESYSTEM_SIZE,
G_PRIORITY_DEFAULT,
row->cancellable,
measure_available_space_finished,
row);
}
}
}
static void
gtk_places_view_row_finalize (GObject *object)
{
GtkPlacesViewRow *self = GTK_PLACES_VIEW_ROW (object);
g_cancellable_cancel (self->cancellable);
g_clear_object (&self->volume);
g_clear_object (&self->mount);
g_clear_object (&self->file);
g_clear_object (&self->cancellable);
G_OBJECT_CLASS (gtk_places_view_row_parent_class)->finalize (object);
}
static void
gtk_places_view_row_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkPlacesViewRow *self;
self = GTK_PLACES_VIEW_ROW (object);
switch (prop_id)
{
case PROP_ICON:
g_value_set_object (value, gtk_image_get_gicon (self->icon_image));
break;
case PROP_NAME:
g_value_set_string (value, gtk_label_get_label (self->name_label));
break;
case PROP_PATH:
g_value_set_string (value, gtk_label_get_label (self->path_label));
break;
case PROP_VOLUME:
g_value_set_object (value, self->volume);
break;
case PROP_MOUNT:
g_value_set_object (value, self->mount);
break;
case PROP_FILE:
g_value_set_object (value, self->file);
break;
case PROP_IS_NETWORK:
g_value_set_boolean (value, self->is_network);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gtk_places_view_row_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkPlacesViewRow *self = GTK_PLACES_VIEW_ROW (object);
switch (prop_id)
{
case PROP_ICON:
gtk_image_set_from_gicon (self->icon_image, g_value_get_object (value));
break;
case PROP_NAME:
gtk_label_set_label (self->name_label, g_value_get_string (value));
break;
case PROP_PATH:
gtk_label_set_label (self->path_label, g_value_get_string (value));
break;
case PROP_VOLUME:
g_set_object (&self->volume, g_value_get_object (value));
break;
case PROP_MOUNT:
g_set_object (&self->mount, g_value_get_object (value));
if (self->mount != NULL)
{
gtk_stack_set_visible_child (self->mount_stack, GTK_WIDGET (self->eject_button));
gtk_widget_set_child_visible (GTK_WIDGET (self->mount_stack), TRUE);
}
else
{
gtk_widget_set_child_visible (GTK_WIDGET (self->mount_stack), FALSE);
}
measure_available_space (self);
break;
case PROP_FILE:
g_set_object (&self->file, g_value_get_object (value));
measure_available_space (self);
break;
case PROP_IS_NETWORK:
gtk_places_view_row_set_is_network (self, g_value_get_boolean (value));
measure_available_space (self);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gtk_places_view_row_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkWidget *menu = GTK_WIDGET (g_object_get_data (G_OBJECT (widget), "menu"));
GTK_WIDGET_CLASS (gtk_places_view_row_parent_class)->size_allocate (widget, width, height, baseline);
if (menu)
gtk_popover_present (GTK_POPOVER (menu));
}
static void
gtk_places_view_row_class_init (GtkPlacesViewRowClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->finalize = gtk_places_view_row_finalize;
object_class->get_property = gtk_places_view_row_get_property;
object_class->set_property = gtk_places_view_row_set_property;
widget_class->size_allocate = gtk_places_view_row_size_allocate;
properties[PROP_ICON] =
g_param_spec_object ("icon", NULL, NULL,
G_TYPE_ICON,
G_PARAM_READWRITE);
properties[PROP_NAME] =
g_param_spec_string ("name", NULL, NULL,
"",
G_PARAM_READWRITE);
properties[PROP_PATH] =
g_param_spec_string ("path", NULL, NULL,
"",
G_PARAM_READWRITE);
properties[PROP_VOLUME] =
g_param_spec_object ("volume", NULL, NULL,
G_TYPE_VOLUME,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
properties[PROP_MOUNT] =
g_param_spec_object ("mount", NULL, NULL,
G_TYPE_MOUNT,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
properties[PROP_FILE] =
g_param_spec_object ("file", NULL, NULL,
G_TYPE_FILE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
properties[PROP_IS_NETWORK] =
g_param_spec_boolean ("is-network", NULL, NULL,
FALSE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, LAST_PROP, properties);
gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkplacesviewrow.ui");
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, available_space_label);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, mount_stack);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, busy_spinner);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, eject_button);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, eject_icon);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, icon_image);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, name_label);
gtk_widget_class_bind_template_child (widget_class, GtkPlacesViewRow, path_label);
}
static void
gtk_places_view_row_init (GtkPlacesViewRow *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
}
GtkWidget*
gtk_places_view_row_new (GVolume *volume,
GMount *mount)
{
return g_object_new (GTK_TYPE_PLACES_VIEW_ROW,
"volume", volume,
"mount", mount,
NULL);
}
GMount*
gtk_places_view_row_get_mount (GtkPlacesViewRow *row)
{
g_return_val_if_fail (GTK_IS_PLACES_VIEW_ROW (row), NULL);
return row->mount;
}
GVolume*
gtk_places_view_row_get_volume (GtkPlacesViewRow *row)
{
g_return_val_if_fail (GTK_IS_PLACES_VIEW_ROW (row), NULL);
return row->volume;
}
GFile*
gtk_places_view_row_get_file (GtkPlacesViewRow *row)
{
g_return_val_if_fail (GTK_IS_PLACES_VIEW_ROW (row), NULL);
return row->file;
}
GtkWidget*
gtk_places_view_row_get_eject_button (GtkPlacesViewRow *row)
{
g_return_val_if_fail (GTK_IS_PLACES_VIEW_ROW (row), NULL);
return GTK_WIDGET (row->eject_button);
}
void
gtk_places_view_row_set_busy (GtkPlacesViewRow *row,
gboolean is_busy)
{
g_return_if_fail (GTK_IS_PLACES_VIEW_ROW (row));
if (is_busy)
{
gtk_stack_set_visible_child (row->mount_stack, GTK_WIDGET (row->busy_spinner));
gtk_widget_set_child_visible (GTK_WIDGET (row->mount_stack), TRUE);
gtk_spinner_start (row->busy_spinner);
}
else
{
gtk_widget_set_child_visible (GTK_WIDGET (row->mount_stack), FALSE);
gtk_spinner_stop (row->busy_spinner);
}
}
gboolean
gtk_places_view_row_get_is_network (GtkPlacesViewRow *row)
{
g_return_val_if_fail (GTK_IS_PLACES_VIEW_ROW (row), FALSE);
return row->is_network;
}
void
gtk_places_view_row_set_is_network (GtkPlacesViewRow *row,
gboolean is_network)
{
if (row->is_network != is_network)
{
row->is_network = is_network;
gtk_image_set_from_icon_name (row->eject_icon, "media-eject-symbolic");
gtk_widget_set_tooltip_text (GTK_WIDGET (row->eject_button), is_network ? _("Disconnect") : _("Unmount"));
}
}
void
gtk_places_view_row_set_path_size_group (GtkPlacesViewRow *row,
GtkSizeGroup *group)
{
if (group)
gtk_size_group_add_widget (group, GTK_WIDGET (row->path_label));
}
void
gtk_places_view_row_set_space_size_group (GtkPlacesViewRow *row,
GtkSizeGroup *group)
{
if (group)
gtk_size_group_add_widget (group, GTK_WIDGET (row->available_space_label));
}
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