1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 * Copyright (C) 2008 Hans Breuer
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General
17 * Public License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
19 * Boston, MA 02111-1307, USA.
21 * Author: Alexander Larsson <alexl@redhat.com>
22 * David Zeuthen <davidz@redhat.com>
23 * Hans Breuer <hans@breuer.org>
33 #include "gwin32volumemonitor.h"
34 #include "gwin32mount.h"
36 #include "giomodule.h"
39 #define _WIN32_WINNT 0x0500
42 struct _GWin32VolumeMonitor {
43 GNativeVolumeMonitor parent;
49 #define g_win32_volume_monitor_get_type _g_win32_volume_monitor_get_type
50 G_DEFINE_TYPE_WITH_CODE (GWin32VolumeMonitor, g_win32_volume_monitor, G_TYPE_NATIVE_VOLUME_MONITOR,
51 g_io_extension_point_implement (G_NATIVE_VOLUME_MONITOR_EXTENSION_POINT_NAME,
57 g_win32_volume_monitor_finalize (GObject *object)
59 GWin32VolumeMonitor *monitor;
61 monitor = G_WIN32_VOLUME_MONITOR (object);
63 if (G_OBJECT_CLASS (g_win32_volume_monitor_parent_class)->finalize)
64 (*G_OBJECT_CLASS (g_win32_volume_monitor_parent_class)->finalize) (object);
68 * get_viewable_logical_drives:
70 * Returns the list of logical and viewable drives as defined by
71 * GetLogicalDrives() and the registry keys
72 * Software\Microsoft\Windows\CurrentVersion\Policies\Explorer under
73 * HKLM or HKCU. If neither key exists the result of
74 * GetLogicalDrives() is returned.
76 * Return value: bitmask with same meaning as returned by GetLogicalDrives()
79 get_viewable_logical_drives (void)
81 guint viewable_drives = GetLogicalDrives ();
84 DWORD var_type = REG_DWORD; //the value's a REG_DWORD type
85 DWORD no_drives_size = 4;
87 gboolean hklm_present = FALSE;
89 if (RegOpenKeyEx (HKEY_LOCAL_MACHINE,
90 "Software\\Microsoft\\Windows\\"
91 "CurrentVersion\\Policies\\Explorer",
92 0, KEY_READ, &key) == ERROR_SUCCESS)
94 if (RegQueryValueEx (key, "NoDrives", NULL, &var_type,
95 (LPBYTE) &no_drives, &no_drives_size) == ERROR_SUCCESS)
97 /* We need the bits that are set in viewable_drives, and
100 viewable_drives = viewable_drives & ~no_drives;
106 /* If the key is present in HKLM then the one in HKCU should be ignored */
109 if (RegOpenKeyEx (HKEY_CURRENT_USER,
110 "Software\\Microsoft\\Windows\\"
111 "CurrentVersion\\Policies\\Explorer",
112 0, KEY_READ, &key) == ERROR_SUCCESS)
114 if (RegQueryValueEx (key, "NoDrives", NULL, &var_type,
115 (LPBYTE) &no_drives, &no_drives_size) == ERROR_SUCCESS)
117 viewable_drives = viewable_drives & ~no_drives;
123 return viewable_drives;
126 /* deliver accesible (aka 'mounted') volumes */
128 get_mounts (GVolumeMonitor *volume_monitor)
130 GWin32VolumeMonitor *monitor;
132 gchar drive[4] = "A:\\";
135 monitor = G_WIN32_VOLUME_MONITOR (volume_monitor);
137 drives = get_viewable_logical_drives ();
140 g_warning ("get_viewable_logical_drives failed.");
142 while (drives && drive[0] <= 'Z')
146 list = g_list_prepend (list, _g_win32_mount_new (volume_monitor, drive, NULL));
154 /* actually 'mounting' volumes is out of GIOs business on win32, so no volumes are delivered either */
156 get_volumes (GVolumeMonitor *volume_monitor)
158 GWin32VolumeMonitor *monitor;
161 monitor = G_WIN32_VOLUME_MONITOR (volume_monitor);
168 get_connected_drives (GVolumeMonitor *volume_monitor)
170 GWin32VolumeMonitor *monitor;
173 wchar_t wc_name[MAX_PATH+1];
176 monitor = G_WIN32_VOLUME_MONITOR (volume_monitor);
179 find_handle = FindFirstVolumeW (wc_name, MAX_PATH);
180 found = (find_handle != INVALID_HANDLE_VALUE);
183 /* I don't know what this code is supposed to do; clearly it now
184 * does nothing, the returned GList is always NULL. But what was
185 * this code supposed to be a start of? The volume names that
186 * the FindFirstVolume/FindNextVolume loop iterates over returns
189 * \Device\HarddiskVolume1
190 * \Device\HarddiskVolume2
193 * No DOS devices there, so I don't see the point with the
194 * QueryDosDevice call below. Probably this code is confusing volumes
195 * with something else that does contain the mapping from DOS devices
198 wchar_t wc_dev_name[MAX_PATH+1];
199 guint trailing = wcslen (wc_name) - 1;
201 /* remove trailing backslash and leading \\?\\ */
202 wc_name[trailing] = L'\0';
203 if (QueryDosDeviceW (&wc_name[4], wc_dev_name, MAX_PATH))
205 gchar *name = g_utf16_to_utf8 (wc_dev_name, -1, NULL, NULL, NULL);
206 g_print ("%s\n", name);
210 found = FindNextVolumeW (find_handle, wc_name, MAX_PATH);
212 if (find_handle != INVALID_HANDLE_VALUE)
213 FindVolumeClose (find_handle);
220 get_volume_for_uuid (GVolumeMonitor *volume_monitor, const char *uuid)
226 get_mount_for_uuid (GVolumeMonitor *volume_monitor, const char *uuid)
238 get_mount_for_mount_path (const char *mount_path,
239 GCancellable *cancellable)
243 /* TODO: Set mountable volume? */
244 mount = _g_win32_mount_new (NULL, mount_path, NULL);
246 return G_MOUNT (mount);
250 g_win32_volume_monitor_class_init (GWin32VolumeMonitorClass *klass)
252 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
253 GVolumeMonitorClass *monitor_class = G_VOLUME_MONITOR_CLASS (klass);
254 GNativeVolumeMonitorClass *native_class = G_NATIVE_VOLUME_MONITOR_CLASS (klass);
256 gobject_class->finalize = g_win32_volume_monitor_finalize;
258 monitor_class->get_mounts = get_mounts;
259 monitor_class->get_volumes = get_volumes;
260 monitor_class->get_connected_drives = get_connected_drives;
261 monitor_class->get_volume_for_uuid = get_volume_for_uuid;
262 monitor_class->get_mount_for_uuid = get_mount_for_uuid;
263 monitor_class->is_supported = is_supported;
265 native_class->get_mount_for_mount_path = get_mount_for_mount_path;
269 g_win32_volume_monitor_init (GWin32VolumeMonitor *win32_monitor)
271 /* maybe we shoud setup a callback window to listern for WM_DEVICECHANGE ? */
273 unix_monitor->mount_monitor = g_win32_mount_monitor_new ();
275 g_signal_connect (win32_monitor->mount_monitor,
276 "mounts-changed", G_CALLBACK (mounts_changed),
279 g_signal_connect (win32_monitor->mount_monitor,
280 "mountpoints-changed", G_CALLBACK (mountpoints_changed),
283 update_volumes (win32_monitor);
284 update_mounts (win32_monitor);