73 lines
1.8 KiB
C#
73 lines
1.8 KiB
C#
/*
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* Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using CefSharp;
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using SafeExamBrowser.Browser.Events;
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using SafeExamBrowser.UserInterface.Contracts.FileSystemDialog;
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namespace SafeExamBrowser.Browser.Handlers
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{
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internal class DialogHandler : IDialogHandler
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{
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internal event DialogRequestedEventHandler DialogRequested;
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public bool OnFileDialog(IWebBrowser webBrowser, IBrowser browser, CefFileDialogMode mode, CefFileDialogFlags flags, string title, string defaultFilePath, List<string> acceptFilters, int selectedAcceptFilter, IFileDialogCallback callback)
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{
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var args = new DialogRequestedEventArgs
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{
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Element = ToElement(mode),
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InitialPath = defaultFilePath,
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Operation = ToOperation(mode),
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Title = title
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};
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Task.Run(() =>
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{
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DialogRequested?.Invoke(args);
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using (callback)
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{
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if (args.Success)
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{
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callback.Continue(selectedAcceptFilter, new List<string> { args.FullPath });
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}
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else
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{
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callback.Cancel();
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}
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}
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});
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return true;
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}
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private FileSystemElement ToElement(CefFileDialogMode mode)
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{
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switch (mode)
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{
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case CefFileDialogMode.OpenFolder:
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return FileSystemElement.Folder;
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default:
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return FileSystemElement.File;
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}
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}
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private FileSystemOperation ToOperation(CefFileDialogMode mode)
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{
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switch (mode)
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{
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case CefFileDialogMode.Save:
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return FileSystemOperation.Save;
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default:
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return FileSystemOperation.Open;
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}
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}
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}
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}
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