mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-10-31 08:22:16 +01:00
0d268c4825
Nicks and blurbs don't have any practical use for gio/gobject libraries. Leaving tests untouched since this features is still used by other libraries. Closes #2991
365 lines
8.8 KiB
C
365 lines
8.8 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
||
*
|
||
* Copyright (C) 2006-2007 Red Hat, Inc.
|
||
*
|
||
* SPDX-License-Identifier: LGPL-2.1-or-later
|
||
*
|
||
* This library 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 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
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General
|
||
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||
*
|
||
* Author: Alexander Larsson <alexl@redhat.com>
|
||
*/
|
||
|
||
#include "config.h"
|
||
|
||
#include "gfileicon.h"
|
||
#include "gfile.h"
|
||
#include "gicon.h"
|
||
#include "glibintl.h"
|
||
#include "gloadableicon.h"
|
||
#include "ginputstream.h"
|
||
#include "gtask.h"
|
||
#include "gioerror.h"
|
||
|
||
|
||
/**
|
||
* GFileIcon:
|
||
*
|
||
* `GFileIcon` specifies an icon by pointing to an image file
|
||
* to be used as icon.
|
||
*
|
||
* It implements [iface@Gio.LoadableIcon].
|
||
*/
|
||
|
||
static void g_file_icon_icon_iface_init (GIconIface *iface);
|
||
static void g_file_icon_loadable_icon_iface_init (GLoadableIconIface *iface);
|
||
static void g_file_icon_load_async (GLoadableIcon *icon,
|
||
int size,
|
||
GCancellable *cancellable,
|
||
GAsyncReadyCallback callback,
|
||
gpointer user_data);
|
||
|
||
struct _GFileIcon
|
||
{
|
||
GObject parent_instance;
|
||
|
||
GFile *file;
|
||
};
|
||
|
||
struct _GFileIconClass
|
||
{
|
||
GObjectClass parent_class;
|
||
};
|
||
|
||
enum
|
||
{
|
||
PROP_0,
|
||
PROP_FILE
|
||
};
|
||
|
||
G_DEFINE_TYPE_WITH_CODE (GFileIcon, g_file_icon, G_TYPE_OBJECT,
|
||
G_IMPLEMENT_INTERFACE (G_TYPE_ICON,
|
||
g_file_icon_icon_iface_init)
|
||
G_IMPLEMENT_INTERFACE (G_TYPE_LOADABLE_ICON,
|
||
g_file_icon_loadable_icon_iface_init))
|
||
|
||
static void
|
||
g_file_icon_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GFileIcon *icon = G_FILE_ICON (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_FILE:
|
||
g_value_set_object (value, icon->file);
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
}
|
||
}
|
||
|
||
static void
|
||
g_file_icon_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GFileIcon *icon = G_FILE_ICON (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_FILE:
|
||
icon->file = G_FILE (g_value_dup_object (value));
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
}
|
||
}
|
||
|
||
static void
|
||
g_file_icon_constructed (GObject *object)
|
||
{
|
||
#ifndef G_DISABLE_ASSERT
|
||
GFileIcon *icon = G_FILE_ICON (object);
|
||
#endif
|
||
|
||
G_OBJECT_CLASS (g_file_icon_parent_class)->constructed (object);
|
||
|
||
/* Must have be set during construction */
|
||
g_assert (icon->file != NULL);
|
||
}
|
||
|
||
static void
|
||
g_file_icon_finalize (GObject *object)
|
||
{
|
||
GFileIcon *icon;
|
||
|
||
icon = G_FILE_ICON (object);
|
||
|
||
if (icon->file)
|
||
g_object_unref (icon->file);
|
||
|
||
G_OBJECT_CLASS (g_file_icon_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
||
g_file_icon_class_init (GFileIconClass *klass)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
|
||
gobject_class->get_property = g_file_icon_get_property;
|
||
gobject_class->set_property = g_file_icon_set_property;
|
||
gobject_class->finalize = g_file_icon_finalize;
|
||
gobject_class->constructed = g_file_icon_constructed;
|
||
|
||
/**
|
||
* GFileIcon:file:
|
||
*
|
||
* The file containing the icon.
|
||
*/
|
||
g_object_class_install_property (gobject_class, PROP_FILE,
|
||
g_param_spec_object ("file", NULL, NULL,
|
||
G_TYPE_FILE,
|
||
G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NICK));
|
||
}
|
||
|
||
static void
|
||
g_file_icon_init (GFileIcon *file)
|
||
{
|
||
}
|
||
|
||
/**
|
||
* g_file_icon_new:
|
||
* @file: a #GFile.
|
||
*
|
||
* Creates a new icon for a file.
|
||
*
|
||
* Returns: (transfer full) (type GFileIcon): a #GIcon for the given
|
||
* @file, or %NULL on error.
|
||
**/
|
||
GIcon *
|
||
g_file_icon_new (GFile *file)
|
||
{
|
||
g_return_val_if_fail (G_IS_FILE (file), NULL);
|
||
|
||
return G_ICON (g_object_new (G_TYPE_FILE_ICON, "file", file, NULL));
|
||
}
|
||
|
||
/**
|
||
* g_file_icon_get_file:
|
||
* @icon: a #GIcon.
|
||
*
|
||
* Gets the #GFile associated with the given @icon.
|
||
*
|
||
* Returns: (transfer none): a #GFile.
|
||
**/
|
||
GFile *
|
||
g_file_icon_get_file (GFileIcon *icon)
|
||
{
|
||
g_return_val_if_fail (G_IS_FILE_ICON (icon), NULL);
|
||
|
||
return icon->file;
|
||
}
|
||
|
||
static guint
|
||
g_file_icon_hash (GIcon *icon)
|
||
{
|
||
GFileIcon *file_icon = G_FILE_ICON (icon);
|
||
|
||
return g_file_hash (file_icon->file);
|
||
}
|
||
|
||
static gboolean
|
||
g_file_icon_equal (GIcon *icon1,
|
||
GIcon *icon2)
|
||
{
|
||
GFileIcon *file1 = G_FILE_ICON (icon1);
|
||
GFileIcon *file2 = G_FILE_ICON (icon2);
|
||
|
||
return g_file_equal (file1->file, file2->file);
|
||
}
|
||
|
||
static gboolean
|
||
g_file_icon_to_tokens (GIcon *icon,
|
||
GPtrArray *tokens,
|
||
gint *out_version)
|
||
{
|
||
GFileIcon *file_icon = G_FILE_ICON (icon);
|
||
|
||
g_return_val_if_fail (out_version != NULL, FALSE);
|
||
|
||
*out_version = 0;
|
||
|
||
g_ptr_array_add (tokens, g_file_get_uri (file_icon->file));
|
||
return TRUE;
|
||
}
|
||
|
||
static GIcon *
|
||
g_file_icon_from_tokens (gchar **tokens,
|
||
gint num_tokens,
|
||
gint version,
|
||
GError **error)
|
||
{
|
||
GIcon *icon;
|
||
GFile *file;
|
||
|
||
icon = NULL;
|
||
|
||
if (version != 0)
|
||
{
|
||
g_set_error (error,
|
||
G_IO_ERROR,
|
||
G_IO_ERROR_INVALID_ARGUMENT,
|
||
_("Can’t handle version %d of GFileIcon encoding"),
|
||
version);
|
||
goto out;
|
||
}
|
||
|
||
if (num_tokens != 1)
|
||
{
|
||
g_set_error_literal (error,
|
||
G_IO_ERROR,
|
||
G_IO_ERROR_INVALID_ARGUMENT,
|
||
_("Malformed input data for GFileIcon"));
|
||
goto out;
|
||
}
|
||
|
||
file = g_file_new_for_uri (tokens[0]);
|
||
icon = g_file_icon_new (file);
|
||
g_object_unref (file);
|
||
|
||
out:
|
||
return icon;
|
||
}
|
||
|
||
static GVariant *
|
||
g_file_icon_serialize (GIcon *icon)
|
||
{
|
||
GFileIcon *file_icon = G_FILE_ICON (icon);
|
||
|
||
return g_variant_new ("(sv)", "file", g_variant_new_take_string (g_file_get_uri (file_icon->file)));
|
||
}
|
||
|
||
static void
|
||
g_file_icon_icon_iface_init (GIconIface *iface)
|
||
{
|
||
iface->hash = g_file_icon_hash;
|
||
iface->equal = g_file_icon_equal;
|
||
iface->to_tokens = g_file_icon_to_tokens;
|
||
iface->from_tokens = g_file_icon_from_tokens;
|
||
iface->serialize = g_file_icon_serialize;
|
||
}
|
||
|
||
|
||
static GInputStream *
|
||
g_file_icon_load (GLoadableIcon *icon,
|
||
int size,
|
||
char **type,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GFileInputStream *stream;
|
||
GFileIcon *file_icon = G_FILE_ICON (icon);
|
||
|
||
stream = g_file_read (file_icon->file,
|
||
cancellable,
|
||
error);
|
||
|
||
if (stream && type)
|
||
*type = NULL;
|
||
|
||
return G_INPUT_STREAM (stream);
|
||
}
|
||
|
||
static void
|
||
load_async_callback (GObject *source_object,
|
||
GAsyncResult *res,
|
||
gpointer user_data)
|
||
{
|
||
GFileInputStream *stream;
|
||
GError *error = NULL;
|
||
GTask *task = user_data;
|
||
|
||
stream = g_file_read_finish (G_FILE (source_object), res, &error);
|
||
if (stream == NULL)
|
||
g_task_return_error (task, error);
|
||
else
|
||
g_task_return_pointer (task, stream, g_object_unref);
|
||
g_object_unref (task);
|
||
}
|
||
|
||
static void
|
||
g_file_icon_load_async (GLoadableIcon *icon,
|
||
int size,
|
||
GCancellable *cancellable,
|
||
GAsyncReadyCallback callback,
|
||
gpointer user_data)
|
||
{
|
||
GFileIcon *file_icon = G_FILE_ICON (icon);
|
||
GTask *task;
|
||
|
||
task = g_task_new (icon, cancellable, callback, user_data);
|
||
g_task_set_source_tag (task, g_file_icon_load_async);
|
||
|
||
g_file_read_async (file_icon->file, 0,
|
||
cancellable,
|
||
load_async_callback, task);
|
||
}
|
||
|
||
static GInputStream *
|
||
g_file_icon_load_finish (GLoadableIcon *icon,
|
||
GAsyncResult *res,
|
||
char **type,
|
||
GError **error)
|
||
{
|
||
g_return_val_if_fail (g_task_is_valid (res, icon), NULL);
|
||
|
||
if (type)
|
||
*type = NULL;
|
||
|
||
return g_task_propagate_pointer (G_TASK (res), error);
|
||
}
|
||
|
||
static void
|
||
g_file_icon_loadable_icon_iface_init (GLoadableIconIface *iface)
|
||
{
|
||
iface->load = g_file_icon_load;
|
||
iface->load_async = g_file_icon_load_async;
|
||
iface->load_finish = g_file_icon_load_finish;
|
||
}
|