Dan Walmsley
4 years ago
14 changed files with 202 additions and 33 deletions
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using System; |
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using System.Collections.Generic; |
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using System.Runtime.CompilerServices; |
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using System.Threading.Tasks; |
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using Tmds.DBus; |
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|
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[assembly: InternalsVisibleTo(Connection.DynamicAssemblyName)] |
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namespace Avalonia.FreeDesktop |
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{ |
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[DBusInterface("org.freedesktop.portal.FileChooser")] |
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internal interface IFileChooser : IDBusObject |
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{ |
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Task<ObjectPath> OpenFileAsync(string ParentWindow, string Title, IDictionary<string, object> Options); |
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Task<ObjectPath> SaveFileAsync(string ParentWindow, string Title, IDictionary<string, object> Options); |
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Task<ObjectPath> SaveFilesAsync(string ParentWindow, string Title, IDictionary<string, object> Options); |
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Task<T> GetAsync<T>(string prop); |
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Task<FileChooserProperties> GetAllAsync(); |
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Task SetAsync(string prop, object val); |
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Task<IDisposable> WatchPropertiesAsync(Action<PropertyChanges> handler); |
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} |
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|
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[Dictionary] |
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internal class FileChooserProperties |
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{ |
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public uint Version { get; set; } |
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} |
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internal static class FileChooserExtensions |
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{ |
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public static Task<uint> GetVersionAsync(this IFileChooser o) => o.GetAsync<uint>("version"); |
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} |
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} |
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@ -0,0 +1,16 @@ |
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using System; |
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using System.Collections.Generic; |
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using System.Runtime.CompilerServices; |
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using System.Threading.Tasks; |
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using Tmds.DBus; |
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|
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[assembly: InternalsVisibleTo(Connection.DynamicAssemblyName)] |
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namespace Avalonia.FreeDesktop |
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{ |
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[DBusInterface("org.freedesktop.portal.Request")] |
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internal interface IRequest : IDBusObject |
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{ |
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Task CloseAsync(); |
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Task<IDisposable> WatchResponseAsync(Action<(uint response, IDictionary<string, object> results)> handler, Action<Exception> onError = null); |
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} |
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} |
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@ -0,0 +1,102 @@ |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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using System.Threading.Tasks; |
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using Avalonia.Controls; |
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using Avalonia.Controls.Platform; |
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using Avalonia.Logging; |
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using Tmds.DBus; |
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|
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namespace Avalonia.FreeDesktop |
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{ |
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internal class DBusSystemDialog : ISystemDialogImpl |
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{ |
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private readonly IFileChooser _fileChooser; |
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|
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internal static DBusSystemDialog? TryCreate() |
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{ |
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var fileChooser = DBusHelper.Connection?.CreateProxy<IFileChooser>("org.freedesktop.portal.Desktop", "/org/freedesktop/portal/desktop"); |
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if (fileChooser is null) |
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return null; |
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try |
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{ |
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fileChooser.GetVersionAsync().GetAwaiter().GetResult(); |
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return new DBusSystemDialog(fileChooser); |
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} |
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catch (Exception e) |
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{ |
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Logger.TryGet(LogEventLevel.Error, LogArea.X11Platform)?.Log(null, $"Unable to connect to org.freedesktop.portal.Desktop: {e.Message}"); |
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return null; |
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} |
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} |
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|
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private DBusSystemDialog(IFileChooser fileChooser) |
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{ |
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_fileChooser = fileChooser; |
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} |
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public async Task<string[]?> ShowFileDialogAsync(FileDialog dialog, Window parent) |
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{ |
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var parentWindow = $"x11:{parent.PlatformImpl!.Handle.Handle.ToString("X")}"; |
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ObjectPath objectPath; |
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var options = new Dictionary<string, object>(); |
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if (dialog.Filters is not null) |
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options.Add("filters", ParseFilters(dialog)); |
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|
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switch (dialog) |
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{ |
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case OpenFileDialog openFileDialog: |
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options.Add("multiple", openFileDialog.AllowMultiple); |
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objectPath = await _fileChooser.OpenFileAsync(parentWindow, openFileDialog.Title ?? string.Empty, options); |
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break; |
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case SaveFileDialog saveFileDialog: |
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if (saveFileDialog.InitialFileName is not null) |
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options.Add("current_name", saveFileDialog.InitialFileName); |
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if (saveFileDialog.Directory is not null) |
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options.Add("current_folder", Encoding.UTF8.GetBytes(saveFileDialog.Directory)); |
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objectPath = await _fileChooser.SaveFileAsync(parentWindow, saveFileDialog.Title ?? string.Empty, options); |
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break; |
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} |
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|
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var request = DBusHelper.Connection!.CreateProxy<IRequest>("org.freedesktop.portal.Request", objectPath); |
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var tsc = new TaskCompletionSource<string[]?>(); |
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using var disposable = await request.WatchResponseAsync(x => tsc.SetResult(x.results["uris"] as string[]), tsc.SetException); |
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var uris = await tsc.Task; |
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if (uris is null) |
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return null; |
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for (var i = 0; i < uris.Length; i++) |
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uris[i] = new Uri(uris[i]).AbsolutePath; |
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return uris; |
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} |
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|
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public async Task<string?> ShowFolderDialogAsync(OpenFolderDialog dialog, Window parent) |
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{ |
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var parentWindow = $"x11:{parent.PlatformImpl!.Handle.Handle.ToString("X")}"; |
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var options = new Dictionary<string, object> |
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{ |
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{ "directory", true } |
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}; |
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var objectPath = await _fileChooser.OpenFileAsync(parentWindow, dialog.Title ?? string.Empty, options); |
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var request = DBusHelper.Connection!.CreateProxy<IRequest>("org.freedesktop.portal.Request", objectPath); |
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var tsc = new TaskCompletionSource<string[]?>(); |
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using var disposable = await request.WatchResponseAsync(x => tsc.SetResult(x.results["uris"] as string[]), tsc.SetException); |
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var uris = await tsc.Task; |
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if (uris is null) |
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return null; |
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return uris.Length != 1 ? string.Empty : new Uri(uris[0]).AbsolutePath; |
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} |
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private static (string name, (uint style, string extension)[])[] ParseFilters(FileDialog dialog) |
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{ |
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var filters = new (string name, (uint style, string extension)[])[dialog.Filters!.Count]; |
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for (var i = 0; i < filters.Length; i++) |
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{ |
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var extensions = dialog.Filters[i].Extensions.Select(static x => (0u, x)).ToArray(); |
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filters[i] = (dialog.Filters[i].Name ?? string.Empty, extensions); |
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} |
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return filters; |
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} |
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} |
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} |
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