//
// Contact:
// Moonlight List (moonlight-list@lists.ximian.com)
//
// Copyright (C) 2009-2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.IO;
using System.Security;
using Mono;
namespace System.Windows.Controls{
public sealed class SaveFileDialog {
string default_ext = String.Empty;
string filter = String.Empty;
int filter_index = 1;
FileInfo file_info;
string safe_file_name = String.Empty;
public SaveFileDialog ()
{
EnsureMainThread ();
}
public string DefaultExt {
get {
EnsureMainThread ();
return default_ext;
}
set {
EnsureMainThread ();
if (String.IsNullOrEmpty (value)) {
default_ext = String.Empty;
} else if (value [0] == '.') {
default_ext = value.Substring (1);
} else {
default_ext = value;
}
}
}
// note: required to run MS test suite
private FileInfo File {
get {
EnsureMainThread ();
return file_info;
}
}
public string Filter {
get {
EnsureMainThread ();
return filter;
}
set {
EnsureMainThread ();
if (String.IsNullOrEmpty (value)) {
filter = String.Empty;
} else {
// an odd number of '|' must be present (so an exact number of name+pattern pairs exists)
int count = 0;
for (int i=0; i < value.Length; i++) {
if (value [i] == '|')
count++;
}
if ((count & 1) == 0)
throw new ArgumentException ("Filter");
filter = value;
}
}
}
public int FilterIndex {
get {
EnsureMainThread ();
return filter_index;
}
set {
EnsureMainThread ();
// note: the value isn't semi-validated (no maximum check wrt filters)
if (value <= 0)
throw new ArgumentOutOfRangeException ("FilterIndex");
filter_index = value;
}
}
public Stream OpenFile ()
{
EnsureMainThread ();
if (file_info == null)
throw new InvalidOperationException ();
return file_info.OpenWrite ();
}
public string SafeFileName {
get {
EnsureMainThread ();
return safe_file_name;
}
}
public bool? ShowDialog ()
{
EnsureMainThread ();
// the dialog is displayed only if the action leading to this call was initiated directly from the user
if (!NativeMethods.surface_is_user_initiated_event (Deployment.Current.Surface.Native))
throw new SecurityException ("Action was not initiated by the user");
IntPtr windowing_system = NativeMethods.runtime_get_windowing_system ();
string result = NativeMethods.moon_windowing_system_show_save_file_dialog (windowing_system,
"Save", filter, filter_index);
if (result == null)
return false;
// if we have a "default extension" specified and that we're not replacing an existing file
if (!String.IsNullOrEmpty (default_ext) && !System.IO.File.Exists (result)) {
// and that the file has no extention, then we supply our default
if (String.IsNullOrEmpty (Path.GetExtension (result)))
result = Path.ChangeExtension (result, default_ext);
}
file_info = new FileInfo (result);
safe_file_name = Path.GetFileName (result);
return true;
}
static void EnsureMainThread ()
{
if (!Helper.CheckAccess ())
throw new InvalidOperationException ("Must be called from the main thread");
}
}
}
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