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using AppKit;
using Foundation;
namespace System.Windows
{
public static class Clipboard
{
static readonly NSPasteboard pasteboard = NSPasteboard.GeneralPasteboard;
static readonly string[] textTypes = { DataFormats.UnicodeText };
public static bool ContainsText()
=> pasteboard.CanReadItemWithDataConformingToTypes(textTypes);
public static void SetDataObject(object data, bool copy)
{
if (data is DataObject dataObject)
{
pasteboard.ClearContents();
foreach (var item in dataObject.Items)
{
switch (item.Data)
{
case string stringData:
pasteboard.SetStringForType(
stringData,
item.Format);
break;
case bool boolItem:
pasteboard.SetDataForType(
NSData.FromArray(new byte[] { boolItem ? (byte)1 : (byte)0 }),
item.Format);
break;
}
}
}
}
public static IDataObject GetDataObject()
{
var dataObject = new DataObject ();
// Beside copying and pasting UnicodeText to/from pasteboard
// editor inserts booleans like "VisualStudioEditorOperationsLineCutCopyClipboardTag"
// which allows editor to know whole line was copied into pasteboard so on paste
// it inserts line into new line, so we enumerate over all types and if length == 1
// we just assume it's boolean we set in method above
foreach (var type in pasteboard.Types)
{
if (type == DataFormats.UnicodeText)
{
dataObject.SetText (pasteboard.GetStringForType (type));
continue;
}
var data = pasteboard.GetDataForType (type);
if (data != null && data.Length == 1)
{
dataObject.SetData (type, data: data [0] != 0);
}
}
return dataObject;
}
}
}
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