99 lines
3.5 KiB
C#
99 lines
3.5 KiB
C#
/*
|
|
Copyright (C) 2014-2019 de4dot@gmail.com
|
|
|
|
This file is part of dnSpy
|
|
|
|
dnSpy is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
dnSpy 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
using System;
|
|
using System.Diagnostics;
|
|
using System.Runtime.InteropServices;
|
|
using System.Windows;
|
|
|
|
namespace dnSpy.AsmEditor.Commands {
|
|
// This class helps copying non-serializable data within this process. The method body editor
|
|
// uses classes that aren't easy to serialize.
|
|
static class ClipboardDataHolder {
|
|
static readonly string suffix = " - " + Process.GetCurrentProcess().Id.ToString();
|
|
// Contains our MyDataObject instance. The system clipboard has a strong reference to it,
|
|
// as long as our data is in the clipboard.
|
|
static WeakReference weakRefMyDataObject = new WeakReference(suffix);
|
|
|
|
// Dummy class that only returns dummy serialized data if it's read by someone else.
|
|
sealed class MyDataObject : IDataObject {
|
|
static readonly object serializedData = 42;
|
|
readonly string dataFormat;
|
|
|
|
// The real (non-serializable) clipboard data
|
|
public object Data => data;
|
|
readonly object data;
|
|
|
|
public MyDataObject(string dataFormat, object data) {
|
|
this.data = data;
|
|
this.dataFormat = dataFormat;
|
|
}
|
|
|
|
public object? GetData(Type format) => format.FullName is string fullName ? GetData(fullName) : null;
|
|
public object? GetData(string format) => GetData(format, true);
|
|
|
|
public object? GetData(string format, bool autoConvert) {
|
|
if (format != dataFormat)
|
|
return null;
|
|
return serializedData;
|
|
}
|
|
|
|
public bool GetDataPresent(Type format) => format.FullName is string fullName && GetDataPresent(fullName);
|
|
public bool GetDataPresent(string format) => GetDataPresent(format, true);
|
|
public bool GetDataPresent(string format, bool autoConvert) => format == dataFormat;
|
|
public string[] GetFormats() => GetFormats(true);
|
|
public string[] GetFormats(bool autoConvert) => new string[] { dataFormat };
|
|
public void SetData(object data) => SetData(data.GetType(), data);
|
|
public void SetData(Type format, object data) => SetData(format.FullName ?? throw new ArgumentException(), data, true);
|
|
public void SetData(string format, object data) => SetData(format, data, true);
|
|
public void SetData(string format, object data, bool autoConvert) => Debug.Fail("Shouldn't be here");
|
|
}
|
|
|
|
static string GetDataFormat(Type type) => type.FullName + suffix;
|
|
|
|
static bool IsInClipboard(Type type) {
|
|
try {
|
|
return Clipboard.ContainsData(GetDataFormat(type));
|
|
}
|
|
catch (ExternalException) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static void Add<T>(T data) where T : class {
|
|
var dataFormat = GetDataFormat(typeof(T));
|
|
var mdo = new MyDataObject(dataFormat, data);
|
|
try {
|
|
Clipboard.SetDataObject(mdo, false);
|
|
}
|
|
catch (ExternalException) {
|
|
return;
|
|
}
|
|
weakRefMyDataObject = new WeakReference(mdo);
|
|
}
|
|
|
|
public static T? TryGet<T>() where T : class {
|
|
if (!IsInClipboard(typeof(T)))
|
|
return null;
|
|
var mdo = weakRefMyDataObject.Target as MyDataObject;
|
|
return mdo?.Data as T;
|
|
}
|
|
}
|
|
}
|