/// <summary>
/// Converts a value to another type.
/// </summary>
/// <param name="value">
/// The value to convert.
/// </param>
/// <param name="targetType">
/// The type to convert to.
/// </param>
/// <param name="parameter">
/// An optional parameter.
/// </param>
/// <param name="culture">
/// The UI culture to convert to.
/// </param>
/// <returns>
/// The converted value.
/// </returns>
public object?Convert(object?value, Type targetType, object parameter, CultureInfo culture)
{
if (targetType != typeof(string))
{
throw new InvalidOperationException("Cannot convert to any type except System.String");
}
if (value == null)
{
return(FallbackValue);
}
var path = (string)value;
if (!Path.IsPathRooted(path))
{
throw new ArgumentException("Path must be rooted", nameof(value));
}
Shell32.IShellItem2 item = Shell32.SHCreateItemFromParsingName <Shell32.IShellItem2>(path);
Shell32.SIGDN sigdn = DisplayMode switch
{
FileNameDisplayMode.Default => Shell32.SIGDN.SIGDN_NORMALDISPLAY,
FileNameDisplayMode.FullPath => Shell32.SIGDN.SIGDN_FILESYSPATH,
FileNameDisplayMode.NameOnly => Shell32.SIGDN.SIGDN_PARENTRELATIVEPARSING,
_ => throw new InvalidOperationException($"Unexpected {nameof(FileNameDisplayMode)}")
};
return(item.GetDisplayName(sigdn));
}
// enumerate "God mode"
// inspired by the source code of ClassicShell
public async Task<SearchResultCollection> SearchAsync(SearchQuery query, CancellationToken ct)
{
if (string.IsNullOrWhiteSpace(query.QueryString))
return null;
var results = new ObservableCollection<SearchResult>();
var resultCollection = new SearchResultCollection
{
Title = "Control Panel",
Icon = new WindowsPEResourceIcon
{
FilePath = @"C:\windows\system32\control.exe"
},
Results = results
};
HRESULT hresult;
hresult = Shell32.SHGetDesktopFolder(out Shell32.IShellFolder desktopShellFolder);
if (hresult != HRESULT.S_OK)
throw new Exception($"Shell32.SHGetDesktopFolder returned '{hresult}'");
hresult = Shell32.SHParseDisplayName("shell:::{ED7BA470-8E54-465E-825C-99712043E01C}", IntPtr.Zero, out Shell32.PIDL godmodePidl, 0, out Shell32.SFGAO psfgaoOut);
if (hresult != HRESULT.S_OK)
throw new Exception($"Shell32.SHParseDisplayName returned '{hresult}'");
var godmodeShellFolder = (Shell32.IShellFolder)desktopShellFolder.BindToObject(godmodePidl, null, new Guid("000214E6-0000-0000-C000-000000000046"));
if (godmodeShellFolder == null)
throw new Exception($"BindToObject returned null");
var itemEnum = godmodeShellFolder.EnumObjects(IntPtr.Zero, Shell32.SHCONTF.SHCONTF_CHECKING_FOR_CHILDREN | Shell32.SHCONTF.SHCONTF_FLATLIST | Shell32.SHCONTF.SHCONTF_NONFOLDERS | Shell32.SHCONTF.SHCONTF_FOLDERS | Shell32.SHCONTF.SHCONTF_INCLUDEHIDDEN | Shell32.SHCONTF.SHCONTF_INCLUDESUPERHIDDEN | Shell32.SHCONTF.SHCONTF_STORAGE);
if (godmodeShellFolder == null)
throw new Exception($"EnumObjects returned null");
var itemPidlArr = new IntPtr[1];
while (itemEnum.Next(1, itemPidlArr, out uint fetched) == HRESULT.S_OK && fetched > 0)
{
var combinedPidl = Shell32.PIDL.Combine(godmodePidl, itemPidlArr[0]);
Shell32.SHCreateItemFromIDList(combinedPidl, typeof(Shell32.IShellItem2).GUID, out object shellItemObj);
Shell32.IShellItem2 shellItem = (Shell32.IShellItem2)shellItemObj;
try
{
var extractIcon = (Shell32.IExtractIcon)godmodeShellFolder.GetUIObjectOf(IntPtr.Zero, 1, new IntPtr[] { itemPidlArr[0] }, typeof(Shell32.IExtractIcon).GUID, IntPtr.Zero);
var iconPathSb = new StringBuilder(255);
extractIcon.GetIconLocation(Shell32.GetIconLocationFlags.GIL_FORSHELL, iconPathSb, iconPathSb.Capacity, out int iconIndex, out Shell32.GetIconLocationResultFlags flags);
var name = shellItem.GetString(Ole32.PROPERTYKEY.System.ItemNameDisplay).ToString();
var parsingPath = shellItem.GetString(Ole32.PROPERTYKEY.System.ParsingPath).ToString();
var keywords = shellItem.GetString(Ole32.PROPERTYKEY.System.Keywords).ToString().Split(';').Select(x => x.ToLower().Trim());
var queryStringLc = query.QueryString.ToLower();
if (name.ToLower().Contains(queryStringLc) || keywords.Any(x => x.Contains(queryStringLc))) {
results.Add(new ActionSearchResult
{
Title = name,
ParentCollection = resultCollection,
Icon = new WindowsPEResourceIcon
{
FilePath = iconPathSb.ToString(),
//Index = iconIndex == -1 ? 1 : iconIndex
//TODO: support for iconIndex < 0 (which means: find icon by resource id instead of icon index)
},
Action = () =>
{
dynamic shell = Activator.CreateInstance(Type.GetTypeFromProgID("Shell.Application"));
var folder = shell.NameSpace(@"shell:::{ED7BA470-8E54-465E-825C-99712043E01C}");
foreach (var item in folder.Items)
{
var itemFolder = ((string)item.path.ToString());
if (itemFolder == parsingPath)
item.InvokeVerb("open");
}
}
});
}
}
catch (Exception)
{
}
}
return resultCollection;
}