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Merge pull request #28 from mikeclayton/feature/refactor
Released in v0.0.16-preview
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| using FancyMouse.HotKeys; | ||
| using FancyMouse.Models.Settings; | ||
|
|
||
| namespace FancyMouse.Helpers; | ||
|
|
||
| internal static class ConfigHelper | ||
| { | ||
| private static readonly HotKeyManager _hotKeyManager; | ||
|
|
||
| private static string? _appSettingsPath; | ||
| private static FileSystemWatcher? _appSettingsWatcher; | ||
|
|
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| private static AppSettings? _appSettings; | ||
| private static EventHandler<HotKeyEventArgs>? _hotKeyPressed; | ||
|
|
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| static ConfigHelper() | ||
| { | ||
| ConfigHelper._hotKeyManager = new HotKeyManager(); | ||
| } | ||
|
|
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| public static AppSettings? AppSettings | ||
| { | ||
| get | ||
| { | ||
| if (_appSettings is null) | ||
| { | ||
| ConfigHelper.LoadAppSettings(); | ||
| } | ||
|
|
||
| return _appSettings; | ||
| } | ||
| } | ||
|
|
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| public static void SetAppSettingsPath(string appSettingsPath) | ||
| { | ||
| _appSettingsPath = appSettingsPath; | ||
| } | ||
|
|
||
| public static void SetHotKeyEventHandler(EventHandler<HotKeyEventArgs> eventHandler) | ||
| { | ||
| var evt = _hotKeyPressed; | ||
| if (evt is not null) | ||
| { | ||
| _hotKeyManager.HotKeyPressed -= evt; | ||
| } | ||
|
|
||
| _hotKeyPressed = eventHandler; | ||
| _hotKeyManager.HotKeyPressed += eventHandler; | ||
| } | ||
|
|
||
| public static void LoadAppSettings() | ||
| { | ||
| _hotKeyManager.SetHoKey(null); | ||
| _appSettings = AppSettingsReader.ReadFile(_appSettingsPath | ||
| ?? throw new InvalidOperationException("AppSettings cannot be null")); | ||
| _hotKeyManager.SetHoKey(_appSettings?.Hotkey | ||
| ?? throw new InvalidOperationException($"{nameof(_appSettings.Hotkey)} cannot be null")); | ||
| } | ||
|
|
||
| public static void StartWatcher() | ||
| { | ||
| // set up the filesystem watcher | ||
| var path = Path.GetDirectoryName(_appSettingsPath) ?? throw new InvalidOperationException(); | ||
| var filter = Path.GetFileName(_appSettingsPath) ?? throw new InvalidOperationException(); | ||
| _appSettingsWatcher = new FileSystemWatcher(path, filter) | ||
| { | ||
| NotifyFilter = NotifyFilters.LastWrite, | ||
| EnableRaisingEvents = true, | ||
| }; | ||
| _appSettingsWatcher.Changed += ConfigHelper.OnAppSettingsChanged; | ||
| } | ||
|
|
||
| private static void OnAppSettingsChanged(object sender, FileSystemEventArgs e) | ||
| { | ||
| if (e.ChangeType != WatcherChangeTypes.Changed) | ||
| { | ||
| return; | ||
| } | ||
|
|
||
| // the file might not have been released yet by the application that saved it | ||
| // and caused the file system event (e.g. notepad) so we need to do a couple | ||
| // of retries to give it a change to release the lock so we can load the file contents. | ||
| for (var i = 0; i < 3; i++) | ||
| { | ||
| try | ||
| { | ||
| ConfigHelper.LoadAppSettings(); | ||
| break; | ||
| } | ||
| catch (IOException ex) | ||
| { | ||
| Console.WriteLine(ex.ToString()); | ||
| Thread.Sleep(250); | ||
| } | ||
| } | ||
| } | ||
| } |
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