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383 lines
9.7 KiB
C
383 lines
9.7 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#include <config.h>
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#include "gvolume.h"
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#include "gvolumeprivate.h"
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#include "gsimpleasyncresult.h"
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#include "glibintl.h"
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#include "gioalias.h"
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/**
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* SECTION:gvolume
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* @short_description: mounted volume management
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*
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* Class for managing mounted volumes.
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*
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* Unmounting volumes is an asynchronous operation. For more information about
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* asynchronous operations, see #GAsyncReady and #GSimpleAsyncReady. To unmount a volume,
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* first call g_volume_unmount() with (at least) the volume and a #GAsyncReadyCallback.
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* The callback will be fired when the operation has resolved (either with success or failure),
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* and a #GAsyncReady structure will be passed to the callback.
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* That callback should then call g_volume_unmount_finish() with
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* the volume and the #GAsyncReady data to see if the operation was completed successfully.
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* If an @error is present when g_volume_unmount_finish() is called, then it will
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* be filled with any error information.
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*
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* Ejecting volumes is also an asynchronous operation.
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* To eject a volume, call g_volume_eject() with (at least) the volume to eject
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* and a #GAsyncReadyCallback. The callback will be fired when the eject operation
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* has resolved (either with success or failure), and a #GAsyncReady structure will
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* be passed to the callback. That callback should then call g_volume_eject_finish()
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* with the volume and the #GAsyncReady data to determine if the operation was completed
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* successfully. If an @error is present when g_volume_eject_finish() is called, then
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* it will be filled with any error information.
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*
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**/
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static void g_volume_base_init (gpointer g_class);
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static void g_volume_class_init (gpointer g_class,
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gpointer class_data);
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GType
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g_volume_get_type (void)
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{
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static GType volume_type = 0;
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if (! volume_type)
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{
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static const GTypeInfo volume_info =
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{
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sizeof (GVolumeIface), /* class_size */
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g_volume_base_init, /* base_init */
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NULL, /* base_finalize */
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g_volume_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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0,
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0, /* n_preallocs */
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NULL
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};
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volume_type =
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g_type_register_static (G_TYPE_INTERFACE, I_("GVolume"),
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&volume_info, 0);
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g_type_interface_add_prerequisite (volume_type, G_TYPE_OBJECT);
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}
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return volume_type;
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}
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static void
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g_volume_class_init (gpointer g_class,
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gpointer class_data)
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{
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}
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static void
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g_volume_base_init (gpointer g_class)
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{
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static gboolean initialized = FALSE;
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if (! initialized)
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{
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/**
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* GVolume::changed:
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*
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* Emitted when the volume has been changed.
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**/
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g_signal_new (I_("changed"),
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G_TYPE_VOLUME,
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GVolumeIface, changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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initialized = TRUE;
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}
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}
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/**
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* g_volume_get_root:
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* @volume: a #GVolume.
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*
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* Gets the root directory on @volume.
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*
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* Returns: a #GFile.
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**/
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GFile *
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g_volume_get_root (GVolume *volume)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), NULL);
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->get_root) (volume);
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}
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/**
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* g_volume_get_name:
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* @volume: a #GVolume.
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*
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* Gets the name of @volume.
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*
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* Returns: the name for the given @volume. The returned string should
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* be freed when no longer needed.
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**/
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char *
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g_volume_get_name (GVolume *volume)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), NULL);
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->get_name) (volume);
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}
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/**
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* g_volume_get_icon:
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* @volume: a #GVolume.
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*
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* Gets the icon for @volume.
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*
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* Returns: a #GIcon.
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**/
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GIcon *
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g_volume_get_icon (GVolume *volume)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), NULL);
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->get_icon) (volume);
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}
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/**
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* g_volume_get_drive:
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* @volume: a #GVolume.
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*
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* Gets the drive for the @volume.
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*
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* Returns: a #GDrive.
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**/
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GDrive *
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g_volume_get_drive (GVolume *volume)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), NULL);
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->get_drive) (volume);
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}
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/**
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* g_volume_can_unmount:
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* @volume: a #GVolume.
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*
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* Checks if @volume can be mounted.
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*
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* Returns: %TRUE if the @volume can be unmounted.
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**/
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gboolean
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g_volume_can_unmount (GVolume *volume)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), FALSE);
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->can_unmount) (volume);
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}
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/**
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* g_volume_can_eject:
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* @volume: a #GVolume.
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*
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* Checks if @volume can be ejected.
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*
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* Returns: %TRUE if the @volume can be ejected.
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**/
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gboolean
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g_volume_can_eject (GVolume *volume)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), FALSE);
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->can_eject) (volume);
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}
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/**
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* g_volume_unmount:
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* @volume: a #GVolume.
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* @cancellable: optional #GCancellable object, %NULL to ignore.
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* @callback: a #GAsyncReadyCallback.
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* @user_data: user data passed to @callback.
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*
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* Unmounts a volume. This is an asynchronous operation, and is
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* finished by calling g_volume_unmount_finish() with the @volume
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* and #GAsyncResults data returned in the @callback.
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**/
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void
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g_volume_unmount (GVolume *volume,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GVolumeIface *iface;
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g_return_if_fail (G_IS_VOLUME (volume));
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iface = G_VOLUME_GET_IFACE (volume);
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if (iface->unmount == NULL)
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{
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g_simple_async_report_error_in_idle (G_OBJECT (volume),
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callback, user_data,
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G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
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_("volume doesn't implement unmount"));
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return;
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}
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(* iface->unmount) (volume, cancellable, callback, user_data);
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}
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/**
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* g_volume_unmount_finish:
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* @volume: a #GVolume.
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* @result: a #GAsyncResult.
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* @error: a #GError location to store the error occuring, or %NULL to
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* ignore.
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*
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* Finishes unmounting a volume. If any errors occured during the operation,
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* @error will be set to contain the errors and %FALSE will be returned.
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*
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* Returns: %TRUE if the volume was successfully unmounted. %FALSE otherwise.
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**/
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gboolean
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g_volume_unmount_finish (GVolume *volume,
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GAsyncResult *result,
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GError **error)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), FALSE);
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g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
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if (G_IS_SIMPLE_ASYNC_RESULT (result))
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{
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GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
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if (g_simple_async_result_propagate_error (simple, error))
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return FALSE;
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}
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->unmount_finish) (volume, result, error);
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}
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/**
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* g_volume_eject:
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* @volume: a #GVolume.
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* @cancellable: optional #GCancellable object, %NULL to ignore.
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* @callback: a #GAsyncReadyCallback.
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* @user_data: user data passed to @callback.
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*
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* Ejects a volume. This is an asynchronous operation, and is
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* finished by calling g_volume_eject_finish() from the @callback
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* with the @volume and #GAsyncResults returned in the callback.
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**/
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void
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g_volume_eject (GVolume *volume,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GVolumeIface *iface;
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g_return_if_fail (G_IS_VOLUME (volume));
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iface = G_VOLUME_GET_IFACE (volume);
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if (iface->eject == NULL)
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{
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g_simple_async_report_error_in_idle (G_OBJECT (volume),
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callback, user_data,
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G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
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_("volume doesn't implement eject"));
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return;
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}
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(* iface->eject) (volume, cancellable, callback, user_data);
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}
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/**
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* g_volume_eject_finish:
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* @volume: a #GVolume.
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* @result: a #GAsyncResult.
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* @error: a #GError location to store the error occuring, or %NULL to
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* ignore.
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*
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* Finishes ejecting the volume. If any errors occured during the operation,
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* @error will be set to contain the errors and %FALSE will be returned.
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*
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* Returns: %TRUE if the volume was successfully ejected. %FALSE otherwise.
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**/
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gboolean
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g_volume_eject_finish (GVolume *volume,
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GAsyncResult *result,
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GError **error)
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{
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GVolumeIface *iface;
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g_return_val_if_fail (G_IS_VOLUME (volume), FALSE);
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g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
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if (G_IS_SIMPLE_ASYNC_RESULT (result))
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{
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GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
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if (g_simple_async_result_propagate_error (simple, error))
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return FALSE;
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}
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iface = G_VOLUME_GET_IFACE (volume);
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return (* iface->eject_finish) (volume, result, error);
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}
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#define __G_VOLUME_C__
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#include "gioaliasdef.c"
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