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Add ability to open hosts file in default text editor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| using Microsoft.Win32; | ||
| using System.Diagnostics; | ||
|
|
||
| namespace HostsFileEditor.Utilities | ||
| { | ||
| /// <summary> | ||
| /// Helper class to open files. | ||
| /// </summary> | ||
| public class FileOpener | ||
| { | ||
| /// <summary> | ||
| /// Open text file using default text editor. | ||
| /// </summary> | ||
| /// <param name="path">Full path to text file.</param> | ||
| public static void OpenTextFile(string path) | ||
| { | ||
| string application; | ||
| if (!TryGetRegisteredApplication(".txt", out application)) | ||
| { | ||
| application = "notepad.exe"; | ||
| } | ||
|
|
||
| Process.Start(application, path); | ||
| } | ||
|
|
||
| private static bool TryGetRegisteredApplication(string extension, out string registeredApp) | ||
| { | ||
| var extensionId = GetClassesRootKeyDefaultValue(extension); | ||
|
|
||
| if (extensionId == null) | ||
| { | ||
| registeredApp = null; | ||
| return false; | ||
| } | ||
|
|
||
| var openCommand = GetClassesRootKeyDefaultValue(extensionId + "/shell/open/command"); | ||
|
|
||
| if (openCommand == null) | ||
| { | ||
| registeredApp = null; | ||
| return false; | ||
| } | ||
|
|
||
| registeredApp = openCommand | ||
| .Replace("%1", string.Empty) | ||
| .Replace("\"", string.Empty) | ||
| .Trim(); | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| private static string GetClassesRootKeyDefaultValue(string keyPath) | ||
| { | ||
| using (var key = Registry.ClassesRoot.OpenSubKey(keyPath)) | ||
| { | ||
| return key?.GetValue(null)?.ToString(); | ||
| } | ||
| } | ||
| } | ||
| } |