gwin32mount.c 8.56 KB
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/* GIO - GLib Input, Output and Streaming Library
 * 
 * Copyright (C) 2006-2007 Red Hat, Inc.
 * Copyright (C) 2008 Hans Breuer
 *
 * 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 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, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Alexander Larsson <alexl@redhat.com>
 *         David Zeuthen <davidz@redhat.com>
 *         Hans Breuer <hans@breuer.org>
 */

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#include "config.h"
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#include <string.h>
#define WIN32_MEAN_AND_LEAN
#include <windows.h>

#include <glib.h>
#include "gwin32volumemonitor.h"
#include "gwin32mount.h"
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#include "gmount.h"
#include "gfile.h"
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#include "gmountprivate.h"
#include "gvolumemonitor.h"
#include "gthemedicon.h"
#include "gsimpleasyncresult.h"
#include "glibintl.h"


struct _GWin32Mount {
  GObject parent;

  GVolumeMonitor   *volume_monitor;

  GWin32Volume      *volume; /* owned by volume monitor */
  int   drive_type;

  /* why does all this stuff need to be duplicated? It is in volume already! */
  char *name;
  GIcon *icon;
  char *mount_path;

  gboolean can_eject;
};

static void g_win32_mount_mount_iface_init (GMountIface *iface);

#define g_win32_mount_get_type _g_win32_mount_get_type
G_DEFINE_TYPE_WITH_CODE (GWin32Mount, g_win32_mount, G_TYPE_OBJECT,
			 G_IMPLEMENT_INTERFACE (G_TYPE_MOUNT,
						g_win32_mount_mount_iface_init))


static void
g_win32_mount_finalize (GObject *object)
{
  GWin32Mount *mount;
  
  mount = G_WIN32_MOUNT (object);

  if (mount->volume_monitor != NULL)
    g_object_unref (mount->volume_monitor);
#if 0
  if (mount->volume)
    _g_win32_volume_unset_mount (mount->volume, mount);
#endif
  /* TODO: g_warn_if_fail (volume->volume == NULL); */
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  if (mount->icon != NULL)
    g_object_unref (mount->icon);

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  g_free (mount->name);
  g_free (mount->mount_path);
  
  if (G_OBJECT_CLASS (g_win32_mount_parent_class)->finalize)
    (*G_OBJECT_CLASS (g_win32_mount_parent_class)->finalize) (object);
}

static void
g_win32_mount_class_init (GWin32MountClass *klass)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

  gobject_class->finalize = g_win32_mount_finalize;
}

static void
g_win32_mount_init (GWin32Mount *win32_mount)
{
}

gchar *
_win32_get_displayname (const char *drive)
{
  gunichar2 *wdrive = g_utf8_to_utf16 (drive, -1, NULL, NULL, NULL);
  gchar *name = NULL;
  SHFILEINFOW sfi;
  if (SHGetFileInfoW(wdrive, 0, &sfi, sizeof(sfi), SHGFI_DISPLAYNAME))
    name = g_utf16_to_utf8 (sfi.szDisplayName, -1, NULL, NULL, NULL);

  g_free (wdrive);
  return name ? name : g_strdup (drive);
}

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/*
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 * _g_win32_mount_new:
 * @volume_monitor: a #GVolumeMonitor.
 * @path: a win32 path.
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 * @volume: usually NULL
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 * 
 * Returns: a #GWin32Mount for the given win32 path.
 **/
GWin32Mount *
_g_win32_mount_new (GVolumeMonitor  *volume_monitor,
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                    const char      *path,
                    GWin32Volume    *volume)
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{
  GWin32Mount *mount;
  const gchar *drive = path; //fixme

#if 0  
  /* No volume for mount: Ignore internal things */
  if (volume == NULL && !g_win32_mount_guess_should_display (mount_entry))
    return NULL;
#endif

  mount = g_object_new (G_TYPE_WIN32_MOUNT, NULL);
  mount->volume_monitor = volume_monitor != NULL ? g_object_ref (volume_monitor) : NULL;
  mount->mount_path = g_strdup (path);
  mount->drive_type = GetDriveType (drive);
  mount->can_eject = FALSE; /* TODO */
  mount->name = _win32_get_displayname (drive);

  /* need to do this last */
  mount->volume = volume;
#if 0
  if (volume != NULL)
    _g_win32_volume_set_mount (volume, mount);
#endif
  return mount;
}

void
_g_win32_mount_unmounted (GWin32Mount *mount)
{
  if (mount->volume != NULL)
    {
#if 0
      _g_win32_volume_unset_mount (mount->volume, mount);
#endif
      mount->volume = NULL;
      g_signal_emit_by_name (mount, "changed");
      /* there's really no need to emit mount_changed on the volume monitor 
       * as we're going to be deleted.. */
    }
}

void
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_g_win32_mount_unset_volume (GWin32Mount  *mount,
			     GWin32Volume *volume)
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{
  if (mount->volume == volume)
    {
      mount->volume = NULL;
      /* TODO: Emit changed in idle to avoid locking issues */
      g_signal_emit_by_name (mount, "changed");
      if (mount->volume_monitor != NULL)
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        g_signal_emit_by_name (mount->volume_monitor, "mount-changed", mount);
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    }
}

static GFile *
g_win32_mount_get_root (GMount *mount)
{
  GWin32Mount *win32_mount = G_WIN32_MOUNT (mount);

  return g_file_new_for_path (win32_mount->mount_path);
}

const char *
_win32_drive_type_to_icon (int type)
{
  switch (type)
  {
  case DRIVE_REMOVABLE : return "gtk-floppy";
  case DRIVE_FIXED : return "gtk-harddisk";
  case DRIVE_REMOTE : return "gtk-network"; 
  case DRIVE_CDROM : return "gtk-cdrom";
  default : return "gtk-directory";
  }
}

static GIcon *
g_win32_mount_get_icon (GMount *mount)
{
  GWin32Mount *win32_mount = G_WIN32_MOUNT (mount);

  g_return_val_if_fail (win32_mount->mount_path != NULL, NULL);

  /* lazy creation */
  if (!win32_mount->icon)
    {
      SHFILEINFOW shfi;
      wchar_t *wfn = g_utf8_to_utf16 (win32_mount->mount_path, -1, NULL, NULL, NULL);

      if (SHGetFileInfoW (wfn, 0, &shfi, sizeof (shfi), SHGFI_ICONLOCATION))
        {
	  gchar *name = g_utf16_to_utf8 (shfi.szDisplayName, -1, NULL, NULL, NULL);
	  gchar *id = g_strdup_printf ("%s,%i", name, shfi.iIcon);
	  win32_mount->icon = g_themed_icon_new (id);
	  g_free (name);
	  g_free (id);
	}
      else
        {
          win32_mount->icon = g_themed_icon_new_with_default_fallbacks (
	                        _win32_drive_type_to_icon (win32_mount->drive_type));
	}
    }

  return g_object_ref (win32_mount->icon);
}

static char *
g_win32_mount_get_uuid (GMount *mount)
{
  return NULL;
}

static char *
g_win32_mount_get_name (GMount *mount)
{
  GWin32Mount *win32_mount = G_WIN32_MOUNT (mount);
  
  return g_strdup (win32_mount->name);
}

static GDrive *
g_win32_mount_get_drive (GMount *mount)
{
  GWin32Mount *win32_mount = G_WIN32_MOUNT (mount);

  if (win32_mount->volume != NULL)
    return g_volume_get_drive (G_VOLUME (win32_mount->volume));

  return NULL;
}

static GVolume *
g_win32_mount_get_volume (GMount *mount)
{
  GWin32Mount *win32_mount = G_WIN32_MOUNT (mount);

  if (win32_mount->volume)
    return G_VOLUME (g_object_ref (win32_mount->volume));
  
  return NULL;
}

static gboolean
g_win32_mount_can_unmount (GMount *mount)
{
  return FALSE;
}

static gboolean
g_win32_mount_can_eject (GMount *mount)
{
  GWin32Mount *win32_mount = G_WIN32_MOUNT (mount);
  return win32_mount->can_eject;
}


typedef struct {
  GWin32Mount *win32_mount;
  GAsyncReadyCallback callback;
  gpointer user_data;
  GCancellable *cancellable;
  int error_fd;
  GIOChannel *error_channel;
  guint error_channel_source_id;
  GString *error_string;
} UnmountEjectOp;

static void
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g_win32_mount_unmount (GMount              *mount,
		       GMountUnmountFlags   flags,
		       GCancellable        *cancellable,
		       GAsyncReadyCallback  callback,
		       gpointer             user_data)
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{
}

static gboolean
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g_win32_mount_unmount_finish (GMount        *mount,
			      GAsyncResult  *result,
			      GError       **error)
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{
  return FALSE;
}

static void
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g_win32_mount_eject (GMount              *mount,
		     GMountUnmountFlags   flags,
		     GCancellable        *cancellable,
		     GAsyncReadyCallback  callback,
		     gpointer             user_data)
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{
}

static gboolean
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g_win32_mount_eject_finish (GMount        *mount,
			    GAsyncResult  *result,
			    GError       **error)
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{
  return FALSE;
}

static void
g_win32_mount_mount_iface_init (GMountIface *iface)
{
  iface->get_root = g_win32_mount_get_root;
  iface->get_name = g_win32_mount_get_name;
  iface->get_icon = g_win32_mount_get_icon;
  iface->get_uuid = g_win32_mount_get_uuid;
  iface->get_drive = g_win32_mount_get_drive;
  iface->get_volume = g_win32_mount_get_volume;
  iface->can_unmount = g_win32_mount_can_unmount;
  iface->can_eject = g_win32_mount_can_eject;
  iface->unmount = g_win32_mount_unmount;
  iface->unmount_finish = g_win32_mount_unmount_finish;
  iface->eject = g_win32_mount_eject;
  iface->eject_finish = g_win32_mount_eject_finish;
}